--- /dev/null
+ Asynchronous Transfers/Transforms API
+
+1 INTRODUCTION
+
+2 GENEALOGY
+
+3 USAGE
+3.1 General format of the API
+3.2 Supported operations
+3.3 Descriptor management
+3.4 When does the operation execute?
+3.5 When does the operation complete?
+3.6 Constraints
+3.7 Example
+
+4 DRIVER DEVELOPER NOTES
+4.1 Conformance points
+4.2 "My application needs finer control of hardware channels"
+
+5 SOURCE
+
+---
+
+1 INTRODUCTION
+
+The async_tx API provides methods for describing a chain of asynchronous
+bulk memory transfers/transforms with support for inter-transactional
+dependencies. It is implemented as a dmaengine client that smooths over
+the details of different hardware offload engine implementations. Code
+that is written to the API can optimize for asynchronous operation and
+the API will fit the chain of operations to the available offload
+resources.
+
+2 GENEALOGY
+
+The API was initially designed to offload the memory copy and
+xor-parity-calculations of the md-raid5 driver using the offload engines
+present in the Intel(R) Xscale series of I/O processors. It also built
+on the 'dmaengine' layer developed for offloading memory copies in the
+network stack using Intel(R) I/OAT engines. The following design
+features surfaced as a result:
+1/ implicit synchronous path: users of the API do not need to know if
+ the platform they are running on has offload capabilities. The
+ operation will be offloaded when an engine is available and carried out
+ in software otherwise.
+2/ cross channel dependency chains: the API allows a chain of dependent
+ operations to be submitted, like xor->copy->xor in the raid5 case. The
+ API automatically handles cases where the transition from one operation
+ to another implies a hardware channel switch.
+3/ dmaengine extensions to support multiple clients and operation types
+ beyond 'memcpy'
+
+3 USAGE
+
+3.1 General format of the API:
+struct dma_async_tx_descriptor *
+async_<operation>(<op specific parameters>,
+ enum async_tx_flags flags,
+ struct dma_async_tx_descriptor *dependency,
+ dma_async_tx_callback callback_routine,
+ void *callback_parameter);
+
+3.2 Supported operations:
+memcpy - memory copy between a source and a destination buffer
+memset - fill a destination buffer with a byte value
+xor - xor a series of source buffers and write the result to a
+ destination buffer
+xor_zero_sum - xor a series of source buffers and set a flag if the
+ result is zero. The implementation attempts to prevent
+ writes to memory
+
+3.3 Descriptor management:
+The return value is non-NULL and points to a 'descriptor' when the operation
+has been queued to execute asynchronously. Descriptors are recycled
+resources, under control of the offload engine driver, to be reused as
+operations complete. When an application needs to submit a chain of
+operations it must guarantee that the descriptor is not automatically recycled
+before the dependency is submitted. This requires that all descriptors be
+acknowledged by the application before the offload engine driver is allowed to
+recycle (or free) the descriptor. A descriptor can be acked by one of the
+following methods:
+1/ setting the ASYNC_TX_ACK flag if no child operations are to be submitted
+2/ setting the ASYNC_TX_DEP_ACK flag to acknowledge the parent
+ descriptor of a new operation.
+3/ calling async_tx_ack() on the descriptor.
+
+3.4 When does the operation execute?
+Operations do not immediately issue after return from the
+async_<operation> call. Offload engine drivers batch operations to
+improve performance by reducing the number of mmio cycles needed to
+manage the channel. Once a driver-specific threshold is met the driver
+automatically issues pending operations. An application can force this
+event by calling async_tx_issue_pending_all(). This operates on all
+channels since the application has no knowledge of channel to operation
+mapping.
+
+3.5 When does the operation complete?
+There are two methods for an application to learn about the completion
+of an operation.
+1/ Call dma_wait_for_async_tx(). This call causes the CPU to spin while
+ it polls for the completion of the operation. It handles dependency
+ chains and issuing pending operations.
+2/ Specify a completion callback. The callback routine runs in tasklet
+ context if the offload engine driver supports interrupts, or it is
+ called in application context if the operation is carried out
+ synchronously in software. The callback can be set in the call to
+ async_<operation>, or when the application needs to submit a chain of
+ unknown length it can use the async_trigger_callback() routine to set a
+ completion interrupt/callback at the end of the chain.
+
+3.6 Constraints:
+1/ Calls to async_<operation> are not permitted in IRQ context. Other
+ contexts are permitted provided constraint #2 is not violated.
+2/ Completion callback routines cannot submit new operations. This
+ results in recursion in the synchronous case and spin_locks being
+ acquired twice in the asynchronous case.
+
+3.7 Example:
+Perform a xor->copy->xor operation where each operation depends on the
+result from the previous operation:
+
+void complete_xor_copy_xor(void *param)
+{
+ printk("complete\n");
+}
+
+int run_xor_copy_xor(struct page **xor_srcs,
+ int xor_src_cnt,
+ struct page *xor_dest,
+ size_t xor_len,
+ struct page *copy_src,
+ struct page *copy_dest,
+ size_t copy_len)
+{
+ struct dma_async_tx_descriptor *tx;
+
+ tx = async_xor(xor_dest, xor_srcs, 0, xor_src_cnt, xor_len,
+ ASYNC_TX_XOR_DROP_DST, NULL, NULL, NULL);
+ tx = async_memcpy(copy_dest, copy_src, 0, 0, copy_len,
+ ASYNC_TX_DEP_ACK, tx, NULL, NULL);
+ tx = async_xor(xor_dest, xor_srcs, 0, xor_src_cnt, xor_len,
+ ASYNC_TX_XOR_DROP_DST | ASYNC_TX_DEP_ACK | ASYNC_TX_ACK,
+ tx, complete_xor_copy_xor, NULL);
+
+ async_tx_issue_pending_all();
+}
+
+See include/linux/async_tx.h for more information on the flags. See the
+ops_run_* and ops_complete_* routines in drivers/md/raid5.c for more
+implementation examples.
+
+4 DRIVER DEVELOPMENT NOTES
+4.1 Conformance points:
+There are a few conformance points required in dmaengine drivers to
+accommodate assumptions made by applications using the async_tx API:
+1/ Completion callbacks are expected to happen in tasklet context
+2/ dma_async_tx_descriptor fields are never manipulated in IRQ context
+3/ Use async_tx_run_dependencies() in the descriptor clean up path to
+ handle submission of dependent operations
+
+4.2 "My application needs finer control of hardware channels"
+This requirement seems to arise from cases where a DMA engine driver is
+trying to support device-to-memory DMA. The dmaengine and async_tx
+implementations were designed for offloading memory-to-memory
+operations; however, there are some capabilities of the dmaengine layer
+that can be used for platform-specific channel management.
+Platform-specific constraints can be handled by registering the
+application as a 'dma_client' and implementing a 'dma_event_callback' to
+apply a filter to the available channels in the system. Before showing
+how to implement a custom dma_event callback some background of
+dmaengine's client support is required.
+
+The following routines in dmaengine support multiple clients requesting
+use of a channel:
+- dma_async_client_register(struct dma_client *client)
+- dma_async_client_chan_request(struct dma_client *client)
+
+dma_async_client_register takes a pointer to an initialized dma_client
+structure. It expects that the 'event_callback' and 'cap_mask' fields
+are already initialized.
+
+dma_async_client_chan_request triggers dmaengine to notify the client of
+all channels that satisfy the capability mask. It is up to the client's
+event_callback routine to track how many channels the client needs and
+how many it is currently using. The dma_event_callback routine returns a
+dma_state_client code to let dmaengine know the status of the
+allocation.
+
+Below is the example of how to extend this functionality for
+platform-specific filtering of the available channels beyond the
+standard capability mask:
+
+static enum dma_state_client
+my_dma_client_callback(struct dma_client *client,
+ struct dma_chan *chan, enum dma_state state)
+{
+ struct dma_device *dma_dev;
+ struct my_platform_specific_dma *plat_dma_dev;
+
+ dma_dev = chan->device;
+ plat_dma_dev = container_of(dma_dev,
+ struct my_platform_specific_dma,
+ dma_dev);
+
+ if (!plat_dma_dev->platform_specific_capability)
+ return DMA_DUP;
+
+ . . .
+}
+
+5 SOURCE
+include/linux/dmaengine.h: core header file for DMA drivers and clients
+drivers/dma/dmaengine.c: offload engine channel management routines
+drivers/dma/: location for offload engine drivers
+include/linux/async_tx.h: core header file for the async_tx api
+crypto/async_tx/async_tx.c: async_tx interface to dmaengine and common code
+crypto/async_tx/async_memcpy.c: copy offload
+crypto/async_tx/async_memset.c: memory fill offload
+crypto/async_tx/async_xor.c: xor and xor zero sum offload
9 = /dev/urandom Faster, less secure random number gen.
10 = /dev/aio Asynchronous I/O notification interface
11 = /dev/kmsg Writes to this come out as printk's
+ 12 = /dev/oldmem Used by crashdump kernels to access
+ the memory of the kernel that crashed.
1 block RAM disk
0 = /dev/ram0 First RAM disk
-** Introduction\r
-This document describes what I managed to discover about the protocol used to\r
-specify force effects to I-Force 2.0 devices. None of this information comes\r
-from Immerse. That's why you should not trust what is written in this\r
-document. This document is intended to help understanding the protocol.\r
-This is not a reference. Comments and corrections are welcome. To contact me,\r
-send an email to: deneux@ifrance.com\r
-\r
-** WARNING **\r
-I may not be held responsible for any dammage or harm caused if you try to\r
-send data to your I-Force device based on what you read in this document.\r
-\r
-** Preliminary Notes:\r
-All values are hexadecimal with big-endian encoding (msb on the left). Beware,\r
-values inside packets are encoded using little-endian. Bytes whose roles are\r
-unknown are marked ??? Information that needs deeper inspection is marked (?)\r
-\r
-** General form of a packet **\r
-This is how packets look when the device uses the rs232 to communicate.\r
-2B OP LEN DATA CS\r
-CS is the checksum. It is equal to the exclusive or of all bytes.\r
-\r
-When using USB:\r
-OP DATA\r
-The 2B, LEN and CS fields have disappeared, probably because USB handles frames and\r
-data corruption is handled or unsignificant.\r
-\r
-First, I describe effects that are sent by the device to the computer\r
-\r
-** Device input state\r
-This packet is used to indicate the state of each button and the value of each\r
-axis\r
-OP= 01 for a joystick, 03 for a wheel\r
-LEN= Varies from device to device\r
-00 X-Axis lsb\r
-01 X-Axis msb\r
-02 Y-Axis lsb, or gas pedal for a wheel\r
-03 Y-Axis msb, or brake pedal for a wheel\r
-04 Throttle\r
-05 Buttons\r
-06 Lower 4 bits: Buttons\r
- Upper 4 bits: Hat\r
-07 Rudder\r
-\r
-** Device effects states\r
-OP= 02\r
-LEN= Varies\r
-00 ? Bit 1 (Value 2) is the value of the deadman switch\r
-01 Bit 8 is set if the effect is playing. Bits 0 to 7 are the effect id.\r
-02 ??\r
-03 Address of parameter block changed (lsb)\r
-04 Address of parameter block changed (msb)\r
-05 Address of second parameter block changed (lsb)\r
-... depending on the number of parameter blocks updated\r
-\r
-** Force effect **\r
-OP= 01\r
-LEN= 0e\r
-00 Channel (when playing several effects at the same time, each must be assigned a channel)\r
-01 Wave form\r
- Val 00 Constant\r
- Val 20 Square\r
- Val 21 Triangle\r
- Val 22 Sine\r
- Val 23 Sawtooth up\r
- Val 24 Sawtooth down\r
- Val 40 Spring (Force = f(pos))\r
- Val 41 Friction (Force = f(velocity)) and Inertia (Force = f(acceleration))\r
-\r
- \r
-02 Axes affected and trigger\r
- Bits 4-7: Val 2 = effect along one axis. Byte 05 indicates direction\r
- Val 4 = X axis only. Byte 05 must contain 5a\r
- Val 8 = Y axis only. Byte 05 must contain b4\r
- Val c = X and Y axes. Bytes 05 must contain 60\r
- Bits 0-3: Val 0 = No trigger\r
- Val x+1 = Button x triggers the effect\r
- When the whole byte is 0, cancel the previously set trigger\r
-\r
-03-04 Duration of effect (little endian encoding, in ms)\r
-\r
-05 Direction of effect, if applicable. Else, see 02 for value to assign.\r
-\r
-06-07 Minimum time between triggering.\r
-\r
-08-09 Address of periodicity or magnitude parameters\r
-0a-0b Address of attack and fade parameters, or ffff if none.\r
-*or*\r
-08-09 Address of interactive parameters for X-axis, or ffff if not applicable\r
-0a-0b Address of interactive parameters for Y-axis, or ffff if not applicable\r
-\r
-0c-0d Delay before execution of effect (little endian encoding, in ms)\r
-\r
-\r
-** Time based parameters **\r
-\r
-*** Attack and fade ***\r
-OP= 02\r
-LEN= 08\r
-00-01 Address where to store the parameteres\r
-02-03 Duration of attack (little endian encoding, in ms)\r
-04 Level at end of attack. Signed byte.\r
-05-06 Duration of fade.\r
-07 Level at end of fade.\r
-\r
-*** Magnitude ***\r
-OP= 03\r
-LEN= 03\r
-00-01 Address\r
-02 Level. Signed byte.\r
-\r
-*** Periodicity ***\r
-OP= 04\r
-LEN= 07\r
-00-01 Address\r
-02 Magnitude. Signed byte.\r
-03 Offset. Signed byte.\r
-04 Phase. Val 00 = 0 deg, Val 40 = 90 degs.\r
-05-06 Period (little endian encoding, in ms)\r
-\r
-** Interactive parameters **\r
-OP= 05\r
-LEN= 0a\r
-00-01 Address\r
-02 Positive Coeff\r
-03 Negative Coeff\r
-04+05 Offset (center)\r
-06+07 Dead band (Val 01F4 = 5000 (decimal))\r
-08 Positive saturation (Val 0a = 1000 (decimal) Val 64 = 10000 (decimal))\r
-09 Negative saturation\r
-\r
-The encoding is a bit funny here: For coeffs, these are signed values. The\r
-maximum value is 64 (100 decimal), the min is 9c.\r
-For the offset, the minimum value is FE0C, the maximum value is 01F4.\r
-For the deadband, the minimum value is 0, the max is 03E8.\r
-\r
-** Controls **\r
-OP= 41\r
-LEN= 03\r
-00 Channel\r
-01 Start/Stop\r
- Val 00: Stop\r
- Val 01: Start and play once.\r
- Val 41: Start and play n times (See byte 02 below)\r
-02 Number of iterations n.\r
-\r
-** Init **\r
-\r
-*** Querying features ***\r
-OP= ff\r
-Query command. Length varies according to the query type.\r
-The general format of this packet is:\r
-ff 01 QUERY [INDEX] CHECKSUM\r
-reponses are of the same form:\r
-FF LEN QUERY VALUE_QUERIED CHECKSUM2\r
-where LEN = 1 + length(VALUE_QUERIED)\r
-\r
-**** Query ram size ****\r
-QUERY = 42 ('B'uffer size)\r
-The device should reply with the same packet plus two additionnal bytes\r
-containing the size of the memory:\r
-ff 03 42 03 e8 CS would mean that the device has 1000 bytes of ram available.\r
-\r
-**** Query number of effects ****\r
-QUERY = 4e ('N'umber of effects)\r
-The device should respond by sending the number of effects that can be played\r
-at the same time (one byte)\r
-ff 02 4e 14 CS would stand for 20 effects.\r
-\r
-**** Vendor's id ****\r
-QUERY = 4d ('M'anufacturer)\r
-Query the vendors'id (2 bytes)\r
-\r
-**** Product id *****\r
-QUERY = 50 ('P'roduct)\r
-Query the product id (2 bytes)\r
-\r
-**** Open device ****\r
-QUERY = 4f ('O'pen) \r
-No data returned.\r
-\r
-**** Close device *****\r
-QUERY = 43 ('C')lose\r
-No data returned.\r
-\r
-**** Query effect ****\r
-QUERY = 45 ('E') \r
-Send effect type.\r
-Returns nonzero if supported (2 bytes)\r
-\r
-**** Firmware Version ****\r
-QUERY = 56 ('V'ersion)\r
-Sends back 3 bytes - major, minor, subminor\r
-\r
-*** Initialisation of the device ***\r
-\r
-**** Set Control ****\r
-!!! Device dependent, can be different on different models !!!\r
-OP= 40 <idx> <val> [<val>]\r
-LEN= 2 or 3\r
-00 Idx\r
- Idx 00 Set dead zone (0..2048) \r
- Idx 01 Ignore Deadman sensor (0..1) \r
- Idx 02 Enable comm watchdog (0..1) \r
- Idx 03 Set the strength of the spring (0..100) \r
- Idx 04 Enable or disable the spring (0/1)\r
- Idx 05 Set axis saturation threshold (0..2048) \r
-\r
-**** Set Effect State ****\r
-OP= 42 <val>\r
-LEN= 1\r
-00 State\r
- Bit 3 Pause force feedback\r
- Bit 2 Enable force feedback\r
- Bit 0 Stop all effects\r
-\r
-**** Set overall gain ****\r
-OP= 43 <val>\r
-LEN= 1\r
-00 Gain\r
- Val 00 = 0%\r
- Val 40 = 50%\r
- Val 80 = 100%\r
-\r
-** Parameter memory **\r
-\r
-Each device has a certain amount of memory to store parameters of effects.\r
-The amount of RAM may vary, I encountered values from 200 to 1000 bytes. Below\r
-is the amount of memory apparently needed for every set of parameters:\r
- - period : 0c\r
- - magnitude : 02\r
- - attack and fade : 0e\r
- - interactive : 08\r
-\r
-** Appendix: How to study the protocol ? **\r
-\r
-1. Generate effects using the force editor provided with the DirectX SDK, or use Immersion Studio (freely available at their web site in the developer section: www.immersion.com)\r
-2. Start a soft spying RS232 or USB (depending on where you connected your joystick/wheel). I used ComPortSpy from fCoder (alpha version!)\r
-3. Play the effect, and watch what happens on the spy screen.\r
-\r
-A few words about ComPortSpy:\r
-At first glance, this soft seems, hum, well... buggy. In fact, data appear with a few seconds latency. Personnaly, I restart it every time I play an effect.\r
-Remember it's free (as in free beer) and alpha!\r
-\r
-** URLS **\r
-Check www.immerse.com for Immersion Studio, and www.fcoder.com for ComPortSpy.\r
-\r
-** Author of this document **\r
-Johann Deneux <deneux@ifrance.com>\r
-Home page at http://www.esil.univ-mrs.fr/~jdeneux/projects/ff/\r
-\r
-Additions by Vojtech Pavlik.\r
-\r
-I-Force is trademark of Immersion Corp.\r
+** Introduction
+This document describes what I managed to discover about the protocol used to
+specify force effects to I-Force 2.0 devices. None of this information comes
+from Immerse. That's why you should not trust what is written in this
+document. This document is intended to help understanding the protocol.
+This is not a reference. Comments and corrections are welcome. To contact me,
+send an email to: deneux@ifrance.com
+
+** WARNING **
+I may not be held responsible for any dammage or harm caused if you try to
+send data to your I-Force device based on what you read in this document.
+
+** Preliminary Notes:
+All values are hexadecimal with big-endian encoding (msb on the left). Beware,
+values inside packets are encoded using little-endian. Bytes whose roles are
+unknown are marked ??? Information that needs deeper inspection is marked (?)
+
+** General form of a packet **
+This is how packets look when the device uses the rs232 to communicate.
+2B OP LEN DATA CS
+CS is the checksum. It is equal to the exclusive or of all bytes.
+
+When using USB:
+OP DATA
+The 2B, LEN and CS fields have disappeared, probably because USB handles frames and
+data corruption is handled or unsignificant.
+
+First, I describe effects that are sent by the device to the computer
+
+** Device input state
+This packet is used to indicate the state of each button and the value of each
+axis
+OP= 01 for a joystick, 03 for a wheel
+LEN= Varies from device to device
+00 X-Axis lsb
+01 X-Axis msb
+02 Y-Axis lsb, or gas pedal for a wheel
+03 Y-Axis msb, or brake pedal for a wheel
+04 Throttle
+05 Buttons
+06 Lower 4 bits: Buttons
+ Upper 4 bits: Hat
+07 Rudder
+
+** Device effects states
+OP= 02
+LEN= Varies
+00 ? Bit 1 (Value 2) is the value of the deadman switch
+01 Bit 8 is set if the effect is playing. Bits 0 to 7 are the effect id.
+02 ??
+03 Address of parameter block changed (lsb)
+04 Address of parameter block changed (msb)
+05 Address of second parameter block changed (lsb)
+... depending on the number of parameter blocks updated
+
+** Force effect **
+OP= 01
+LEN= 0e
+00 Channel (when playing several effects at the same time, each must be assigned a channel)
+01 Wave form
+ Val 00 Constant
+ Val 20 Square
+ Val 21 Triangle
+ Val 22 Sine
+ Val 23 Sawtooth up
+ Val 24 Sawtooth down
+ Val 40 Spring (Force = f(pos))
+ Val 41 Friction (Force = f(velocity)) and Inertia (Force = f(acceleration))
+
+
+02 Axes affected and trigger
+ Bits 4-7: Val 2 = effect along one axis. Byte 05 indicates direction
+ Val 4 = X axis only. Byte 05 must contain 5a
+ Val 8 = Y axis only. Byte 05 must contain b4
+ Val c = X and Y axes. Bytes 05 must contain 60
+ Bits 0-3: Val 0 = No trigger
+ Val x+1 = Button x triggers the effect
+ When the whole byte is 0, cancel the previously set trigger
+
+03-04 Duration of effect (little endian encoding, in ms)
+
+05 Direction of effect, if applicable. Else, see 02 for value to assign.
+
+06-07 Minimum time between triggering.
+
+08-09 Address of periodicity or magnitude parameters
+0a-0b Address of attack and fade parameters, or ffff if none.
+*or*
+08-09 Address of interactive parameters for X-axis, or ffff if not applicable
+0a-0b Address of interactive parameters for Y-axis, or ffff if not applicable
+
+0c-0d Delay before execution of effect (little endian encoding, in ms)
+
+
+** Time based parameters **
+
+*** Attack and fade ***
+OP= 02
+LEN= 08
+00-01 Address where to store the parameteres
+02-03 Duration of attack (little endian encoding, in ms)
+04 Level at end of attack. Signed byte.
+05-06 Duration of fade.
+07 Level at end of fade.
+
+*** Magnitude ***
+OP= 03
+LEN= 03
+00-01 Address
+02 Level. Signed byte.
+
+*** Periodicity ***
+OP= 04
+LEN= 07
+00-01 Address
+02 Magnitude. Signed byte.
+03 Offset. Signed byte.
+04 Phase. Val 00 = 0 deg, Val 40 = 90 degs.
+05-06 Period (little endian encoding, in ms)
+
+** Interactive parameters **
+OP= 05
+LEN= 0a
+00-01 Address
+02 Positive Coeff
+03 Negative Coeff
+04+05 Offset (center)
+06+07 Dead band (Val 01F4 = 5000 (decimal))
+08 Positive saturation (Val 0a = 1000 (decimal) Val 64 = 10000 (decimal))
+09 Negative saturation
+
+The encoding is a bit funny here: For coeffs, these are signed values. The
+maximum value is 64 (100 decimal), the min is 9c.
+For the offset, the minimum value is FE0C, the maximum value is 01F4.
+For the deadband, the minimum value is 0, the max is 03E8.
+
+** Controls **
+OP= 41
+LEN= 03
+00 Channel
+01 Start/Stop
+ Val 00: Stop
+ Val 01: Start and play once.
+ Val 41: Start and play n times (See byte 02 below)
+02 Number of iterations n.
+
+** Init **
+
+*** Querying features ***
+OP= ff
+Query command. Length varies according to the query type.
+The general format of this packet is:
+ff 01 QUERY [INDEX] CHECKSUM
+reponses are of the same form:
+FF LEN QUERY VALUE_QUERIED CHECKSUM2
+where LEN = 1 + length(VALUE_QUERIED)
+
+**** Query ram size ****
+QUERY = 42 ('B'uffer size)
+The device should reply with the same packet plus two additionnal bytes
+containing the size of the memory:
+ff 03 42 03 e8 CS would mean that the device has 1000 bytes of ram available.
+
+**** Query number of effects ****
+QUERY = 4e ('N'umber of effects)
+The device should respond by sending the number of effects that can be played
+at the same time (one byte)
+ff 02 4e 14 CS would stand for 20 effects.
+
+**** Vendor's id ****
+QUERY = 4d ('M'anufacturer)
+Query the vendors'id (2 bytes)
+
+**** Product id *****
+QUERY = 50 ('P'roduct)
+Query the product id (2 bytes)
+
+**** Open device ****
+QUERY = 4f ('O'pen)
+No data returned.
+
+**** Close device *****
+QUERY = 43 ('C')lose
+No data returned.
+
+**** Query effect ****
+QUERY = 45 ('E')
+Send effect type.
+Returns nonzero if supported (2 bytes)
+
+**** Firmware Version ****
+QUERY = 56 ('V'ersion)
+Sends back 3 bytes - major, minor, subminor
+
+*** Initialisation of the device ***
+
+**** Set Control ****
+!!! Device dependent, can be different on different models !!!
+OP= 40 <idx> <val> [<val>]
+LEN= 2 or 3
+00 Idx
+ Idx 00 Set dead zone (0..2048)
+ Idx 01 Ignore Deadman sensor (0..1)
+ Idx 02 Enable comm watchdog (0..1)
+ Idx 03 Set the strength of the spring (0..100)
+ Idx 04 Enable or disable the spring (0/1)
+ Idx 05 Set axis saturation threshold (0..2048)
+
+**** Set Effect State ****
+OP= 42 <val>
+LEN= 1
+00 State
+ Bit 3 Pause force feedback
+ Bit 2 Enable force feedback
+ Bit 0 Stop all effects
+
+**** Set overall gain ****
+OP= 43 <val>
+LEN= 1
+00 Gain
+ Val 00 = 0%
+ Val 40 = 50%
+ Val 80 = 100%
+
+** Parameter memory **
+
+Each device has a certain amount of memory to store parameters of effects.
+The amount of RAM may vary, I encountered values from 200 to 1000 bytes. Below
+is the amount of memory apparently needed for every set of parameters:
+ - period : 0c
+ - magnitude : 02
+ - attack and fade : 0e
+ - interactive : 08
+
+** Appendix: How to study the protocol ? **
+
+1. Generate effects using the force editor provided with the DirectX SDK, or use Immersion Studio (freely available at their web site in the developer section: www.immersion.com)
+2. Start a soft spying RS232 or USB (depending on where you connected your joystick/wheel). I used ComPortSpy from fCoder (alpha version!)
+3. Play the effect, and watch what happens on the spy screen.
+
+A few words about ComPortSpy:
+At first glance, this soft seems, hum, well... buggy. In fact, data appear with a few seconds latency. Personnaly, I restart it every time I play an effect.
+Remember it's free (as in free beer) and alpha!
+
+** URLS **
+Check www.immerse.com for Immersion Studio, and www.fcoder.com for ComPortSpy.
+
+** Author of this document **
+Johann Deneux <deneux@ifrance.com>
+Home page at http://www.esil.univ-mrs.fr/~jdeneux/projects/ff/
+
+Additions by Vojtech Pavlik.
+
+I-Force is trademark of Immersion Corp.
- Kernel Parameters
- ~~~~~~~~~~~~~~~~~
+ Kernel Parameters
+ ~~~~~~~~~~~~~~~~~
The following is a consolidated list of the kernel parameters as implemented
(mostly) by the __setup() macro and sorted into English Dictionary order
reboot= [BUGS=X86-32,BUGS=ARM,BUGS=IA-64] Rebooting mode
Format: <reboot_mode>[,<reboot_mode2>[,...]]
- See arch/*/kernel/reboot.c or arch/*/kernel/process.c
+ See arch/*/kernel/reboot.c or arch/*/kernel/process.c
reserve= [KNL,BUGS] Force the kernel to ignore some iomem area
selinux_compat_net =
[SELINUX] Set initial selinux_compat_net flag value.
- Format: { "0" | "1" }
- 0 -- use new secmark-based packet controls
- 1 -- use legacy packet controls
- Default value is 0 (preferred).
- Value can be changed at runtime via
- /selinux/compat_net.
+ Format: { "0" | "1" }
+ 0 -- use new secmark-based packet controls
+ 1 -- use legacy packet controls
+ Default value is 0 (preferred).
+ Value can be changed at runtime via
+ /selinux/compat_net.
serialnumber [BUGS=X86-32]
norandmaps Don't use address space randomization
Equivalent to echo 0 > /proc/sys/kernel/randomize_va_space
- unwind_debug=N N > 0 will enable dwarf2 unwinder debugging
+ unwind_debug=N N > 0 will enable dwarf2 unwinder debugging
This is useful to get more information why
you got a "dwarf2 unwinder stuck"
* of the block file (possibly extending it). */
if (off + len > device_len) {
/* Trim it back to the correct length */
- ftruncate(dev->fd, device_len);
+ ftruncate64(dev->fd, device_len);
/* Die, bad Guest, die. */
errx(1, "Write past end %llu+%u", off, len);
}
--- /dev/null
+
+LOCK STATISTICS
+
+- WHAT
+
+As the name suggests, it provides statistics on locks.
+
+- WHY
+
+Because things like lock contention can severely impact performance.
+
+- HOW
+
+Lockdep already has hooks in the lock functions and maps lock instances to
+lock classes. We build on that. The graph below shows the relation between
+the lock functions and the various hooks therein.
+
+ __acquire
+ |
+ lock _____
+ | \
+ | __contended
+ | |
+ | <wait>
+ | _______/
+ |/
+ |
+ __acquired
+ |
+ .
+ <hold>
+ .
+ |
+ __release
+ |
+ unlock
+
+lock, unlock - the regular lock functions
+__* - the hooks
+<> - states
+
+With these hooks we provide the following statistics:
+
+ con-bounces - number of lock contention that involved x-cpu data
+ contentions - number of lock acquisitions that had to wait
+ wait time min - shortest (non-0) time we ever had to wait for a lock
+ max - longest time we ever had to wait for a lock
+ total - total time we spend waiting on this lock
+ acq-bounces - number of lock acquisitions that involved x-cpu data
+ acquisitions - number of times we took the lock
+ hold time min - shortest (non-0) time we ever held the lock
+ max - longest time we ever held the lock
+ total - total time this lock was held
+
+From these number various other statistics can be derived, such as:
+
+ hold time average = hold time total / acquisitions
+
+These numbers are gathered per lock class, per read/write state (when
+applicable).
+
+It also tracks 4 contention points per class. A contention point is a call site
+that had to wait on lock acquisition.
+
+ - USAGE
+
+Look at the current lock statistics:
+
+( line numbers not part of actual output, done for clarity in the explanation
+ below )
+
+# less /proc/lock_stat
+
+01 lock_stat version 0.2
+02 -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+03 class name con-bounces contentions waittime-min waittime-max waittime-total acq-bounces acquisitions holdtime-min holdtime-max holdtime-total
+04 -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+05
+06 &inode->i_data.tree_lock-W: 15 21657 0.18 1093295.30 11547131054.85 58 10415 0.16 87.51 6387.60
+07 &inode->i_data.tree_lock-R: 0 0 0.00 0.00 0.00 23302 231198 0.25 8.45 98023.38
+08 --------------------------
+09 &inode->i_data.tree_lock 0 [<ffffffff8027c08f>] add_to_page_cache+0x5f/0x190
+10
+11 ...............................................................................................................................................................................................
+12
+13 dcache_lock: 1037 1161 0.38 45.32 774.51 6611 243371 0.15 306.48 77387.24
+14 -----------
+15 dcache_lock 180 [<ffffffff802c0d7e>] sys_getcwd+0x11e/0x230
+16 dcache_lock 165 [<ffffffff802c002a>] d_alloc+0x15a/0x210
+17 dcache_lock 33 [<ffffffff8035818d>] _atomic_dec_and_lock+0x4d/0x70
+18 dcache_lock 1 [<ffffffff802beef8>] shrink_dcache_parent+0x18/0x130
+
+This excerpt shows the first two lock class statistics. Line 01 shows the
+output version - each time the format changes this will be updated. Line 02-04
+show the header with column descriptions. Lines 05-10 and 13-18 show the actual
+statistics. These statistics come in two parts; the actual stats separated by a
+short separator (line 08, 14) from the contention points.
+
+The first lock (05-10) is a read/write lock, and shows two lines above the
+short separator. The contention points don't match the column descriptors,
+they have two: contentions and [<IP>] symbol.
+
+
+View the top contending locks:
+
+# grep : /proc/lock_stat | head
+ &inode->i_data.tree_lock-W: 15 21657 0.18 1093295.30 11547131054.85 58 10415 0.16 87.51 6387.60
+ &inode->i_data.tree_lock-R: 0 0 0.00 0.00 0.00 23302 231198 0.25 8.45 98023.38
+ dcache_lock: 1037 1161 0.38 45.32 774.51 6611 243371 0.15 306.48 77387.24
+ &inode->i_mutex: 161 286 18446744073709 62882.54 1244614.55 3653 20598 18446744073709 62318.60 1693822.74
+ &zone->lru_lock: 94 94 0.53 7.33 92.10 4366 32690 0.29 59.81 16350.06
+ &inode->i_data.i_mmap_lock: 79 79 0.40 3.77 53.03 11779 87755 0.28 116.93 29898.44
+ &q->__queue_lock: 48 50 0.52 31.62 86.31 774 13131 0.17 113.08 12277.52
+ &rq->rq_lock_key: 43 47 0.74 68.50 170.63 3706 33929 0.22 107.99 17460.62
+ &rq->rq_lock_key#2: 39 46 0.75 6.68 49.03 2979 32292 0.17 125.17 17137.63
+ tasklist_lock-W: 15 15 1.45 10.87 32.70 1201 7390 0.58 62.55 13648.47
+
+Clear the statistics:
+
+# echo 0 > /proc/lock_stat
keyboards may not have a key labeled 'SysRq'. The 'SysRq' key is
also known as the 'Print Screen' key. Also some keyboards cannot
handle so many keys being pressed at the same time, so you might
- have better luck with "press Alt", "press SysRq", "release Alt",
+ have better luck with "press Alt", "press SysRq", "release SysRq",
"press <command key>", release everything.
On SPARC - You press 'ALT-STOP-<command key>', I believe.
P: Jozsef Kadlecsik
P: Patrick McHardy
M: kaber@trash.net
-L: netfilter-devel@lists.netfilter.org
-L: netfilter@lists.netfilter.org (subscribers-only)
+L: netfilter-devel@vger.kernel.org
+L: netfilter@vger.kernel.org
L: coreteam@netfilter.org
W: http://www.netfilter.org/
W: http://www.iptables.org/
P: Hideaki YOSHIFUJI
M: yoshfuji@linux-ipv6.org
P: Patrick McHardy
-M: kaber@coreworks.de
+M: kaber@trash.net
L: netdev@vger.kernel.org
T: git kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6.git
S: Maintained
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 23
-EXTRAVERSION =-rc6
-NAME = Pink Farting Weasel
+EXTRAVERSION =
+NAME = Arr Matey! A Hairy Bilge Rat!
# *DOCUMENTATION*
# To see a list of typical targets execute "make help"
* pcibios_fixup_bus - Called after each bus is probed,
* but before its children are examined.
*/
-void __devinit pcibios_fixup_bus(struct pci_bus *bus)
+void pcibios_fixup_bus(struct pci_bus *bus)
{
struct pci_sys_data *root = bus->sysdata;
struct pci_dev *dev;
/*
* Convert from Linux-centric to bus-centric addresses for bridge devices.
*/
-void __devinit
+void
pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
struct resource *res)
{
if (line >= 0 && line < 16) {
gpio_line_config(line, GPIO_IN);
} else {
- gpio_line_config(EP93XX_GPIO_LINE_F(line), GPIO_IN);
+ gpio_line_config(EP93XX_GPIO_LINE_F(line-16), GPIO_IN);
}
port = line >> 3;
static int osiris_pm_suspend(struct sys_device *sd, pm_message_t state)
{
+ unsigned int tmp;
+
pm_osiris_ctrl0 = __raw_readb(OSIRIS_VA_CTRL0);
+ tmp = pm_osiris_ctrl0 & ~OSIRIS_CTRL0_NANDSEL;
+
+ /* ensure correct NAND slot is selected on resume */
+ if ((pm_osiris_ctrl0 & OSIRIS_CTRL0_BOOT_INT) == 0)
+ tmp |= 2;
+
+ __raw_writeb(tmp, OSIRIS_VA_CTRL0);
+
+ /* ensure that an nRESET is not generated on resume. */
+ s3c2410_gpio_setpin(S3C2410_GPA21, 1);
+ s3c2410_gpio_cfgpin(S3C2410_GPA21, S3C2410_GPA21_OUT);
+
return 0;
}
if (pm_osiris_ctrl0 & OSIRIS_CTRL0_FIX8)
__raw_writeb(OSIRIS_CTRL1_FIX8, OSIRIS_VA_CTRL1);
+ __raw_writeb(pm_osiris_ctrl0, OSIRIS_VA_CTRL0);
+
+ s3c2410_gpio_cfgpin(S3C2410_GPA21, S3C2410_GPA21_nRSTOUT);
+
return 0;
}
{
unsigned long addr;
- start &= ~(CACHE_LINE_SIZE - 1);
+ if (start & (CACHE_LINE_SIZE - 1)) {
+ start &= ~(CACHE_LINE_SIZE - 1);
+ sync_writel(start, L2X0_CLEAN_INV_LINE_PA, 1);
+ start += CACHE_LINE_SIZE;
+ }
+
+ if (end & (CACHE_LINE_SIZE - 1)) {
+ end &= ~(CACHE_LINE_SIZE - 1);
+ sync_writel(end, L2X0_CLEAN_INV_LINE_PA, 1);
+ }
+
for (addr = start; addr < end; addr += CACHE_LINE_SIZE)
sync_writel(addr, L2X0_INV_LINE_PA, 1);
cache_sync();
#include <linux/err.h>
#include <asm/blackfin.h>
#include <asm/gpio.h>
+#include <asm/portmux.h>
#include <linux/irq.h>
#ifdef BF533_FAMILY
};
#endif
-static unsigned short reserved_map[gpio_bank(MAX_BLACKFIN_GPIOS)];
+static unsigned short reserved_gpio_map[gpio_bank(MAX_BLACKFIN_GPIOS)];
+static unsigned short reserved_peri_map[gpio_bank(MAX_BLACKFIN_GPIOS + 16)];
+char *str_ident = NULL;
+
+#define RESOURCE_LABEL_SIZE 16
#ifdef CONFIG_PM
static unsigned short wakeup_map[gpio_bank(MAX_BLACKFIN_GPIOS)];
return 0;
}
+static void set_label(unsigned short ident, const char *label)
+{
+
+ if (label && str_ident) {
+ strncpy(str_ident + ident * RESOURCE_LABEL_SIZE, label,
+ RESOURCE_LABEL_SIZE);
+ str_ident[ident * RESOURCE_LABEL_SIZE +
+ RESOURCE_LABEL_SIZE - 1] = 0;
+ }
+}
+
+static char *get_label(unsigned short ident)
+{
+ if (!str_ident)
+ return "UNKNOWN";
+
+ return (str_ident[ident * RESOURCE_LABEL_SIZE] ?
+ (str_ident + ident * RESOURCE_LABEL_SIZE) : "UNKNOWN");
+}
+
+static int cmp_label(unsigned short ident, const char *label)
+{
+ if (label && str_ident)
+ return strncmp(str_ident + ident * RESOURCE_LABEL_SIZE,
+ label, strlen(label));
+ else
+ return -EINVAL;
+}
+
#ifdef BF537_FAMILY
static void port_setup(unsigned short gpio, unsigned short usage)
{
- if (usage == GPIO_USAGE) {
- if (*port_fer[gpio_bank(gpio)] & gpio_bit(gpio))
- printk(KERN_WARNING "bfin-gpio: Possible Conflict with Peripheral "
- "usage and GPIO %d detected!\n", gpio);
- *port_fer[gpio_bank(gpio)] &= ~gpio_bit(gpio);
- } else
- *port_fer[gpio_bank(gpio)] |= gpio_bit(gpio);
- SSYNC();
+ if (!check_gpio(gpio)) {
+ if (usage == GPIO_USAGE) {
+ *port_fer[gpio_bank(gpio)] &= ~gpio_bit(gpio);
+ } else
+ *port_fer[gpio_bank(gpio)] |= gpio_bit(gpio);
+ SSYNC();
+ }
}
#else
# define port_setup(...) do { } while (0)
#endif
+#ifdef BF537_FAMILY
+
+#define PMUX_LUT_RES 0
+#define PMUX_LUT_OFFSET 1
+#define PMUX_LUT_ENTRIES 41
+#define PMUX_LUT_SIZE 2
+
+static unsigned short port_mux_lut[PMUX_LUT_ENTRIES][PMUX_LUT_SIZE] = {
+ {P_PPI0_D13, 11}, {P_PPI0_D14, 11}, {P_PPI0_D15, 11},
+ {P_SPORT1_TFS, 11}, {P_SPORT1_TSCLK, 11}, {P_SPORT1_DTPRI, 11},
+ {P_PPI0_D10, 10}, {P_PPI0_D11, 10}, {P_PPI0_D12, 10},
+ {P_SPORT1_RSCLK, 10}, {P_SPORT1_RFS, 10}, {P_SPORT1_DRPRI, 10},
+ {P_PPI0_D8, 9}, {P_PPI0_D9, 9}, {P_SPORT1_DRSEC, 9},
+ {P_SPORT1_DTSEC, 9}, {P_TMR2, 8}, {P_PPI0_FS3, 8}, {P_TMR3, 7},
+ {P_SPI0_SSEL4, 7}, {P_TMR4, 6}, {P_SPI0_SSEL5, 6}, {P_TMR5, 5},
+ {P_SPI0_SSEL6, 5}, {P_UART1_RX, 4}, {P_UART1_TX, 4}, {P_TMR6, 4},
+ {P_TMR7, 4}, {P_UART0_RX, 3}, {P_UART0_TX, 3}, {P_DMAR0, 3},
+ {P_DMAR1, 3}, {P_SPORT0_DTSEC, 1}, {P_SPORT0_DRSEC, 1},
+ {P_CAN0_RX, 1}, {P_CAN0_TX, 1}, {P_SPI0_SSEL7, 1},
+ {P_SPORT0_TFS, 0}, {P_SPORT0_DTPRI, 0}, {P_SPI0_SSEL2, 0},
+ {P_SPI0_SSEL3, 0}
+};
+
+static void portmux_setup(unsigned short per, unsigned short function)
+{
+ u16 y, muxreg, offset;
+
+ for (y = 0; y < PMUX_LUT_ENTRIES; y++) {
+ if (port_mux_lut[y][PMUX_LUT_RES] == per) {
+
+ /* SET PORTMUX REG */
+
+ offset = port_mux_lut[y][PMUX_LUT_OFFSET];
+ muxreg = bfin_read_PORT_MUX();
+
+ if (offset != 1) {
+ muxreg &= ~(1 << offset);
+ } else {
+ muxreg &= ~(3 << 1);
+ }
+
+ muxreg |= (function << offset);
+ bfin_write_PORT_MUX(muxreg);
+ }
+ }
+}
+
+#else
+# define portmux_setup(...) do { } while (0)
+#endif
static void default_gpio(unsigned short gpio)
{
static int __init bfin_gpio_init(void)
{
- int i;
-
- printk(KERN_INFO "Blackfin GPIO Controller\n");
- for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE)
- reserved_map[gpio_bank(i)] = 0;
+ str_ident = kzalloc(RESOURCE_LABEL_SIZE * 256, GFP_KERNEL);
+ if (!str_ident)
+ return -ENOMEM;
-#if defined(BF537_FAMILY) && (defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE))
-# if defined(CONFIG_BFIN_MAC_RMII)
- reserved_map[gpio_bank(PORT_H)] = 0xC373;
-# else
- reserved_map[gpio_bank(PORT_H)] = 0xFFFF;
-# endif
-#endif
+ printk(KERN_INFO "Blackfin GPIO Controller\n");
return 0;
+
}
arch_initcall(bfin_gpio_init);
void set_gpio_ ## name(unsigned short gpio, unsigned short arg) \
{ \
unsigned long flags; \
- BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); \
+ BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); \
local_irq_save(flags); \
if (arg) \
gpio_bankb[gpio_bank(gpio)]->name |= gpio_bit(gpio); \
#define SET_GPIO_SC(name) \
void set_gpio_ ## name(unsigned short gpio, unsigned short arg) \
{ \
- BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))); \
+ BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); \
if (arg) \
gpio_bankb[gpio_bank(gpio)]->name ## _set = gpio_bit(gpio); \
else \
void set_gpio_data(unsigned short gpio, unsigned short arg)
{
unsigned long flags;
- BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+ BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
local_irq_save(flags);
if (arg)
gpio_bankb[gpio_bank(gpio)]->data_set = gpio_bit(gpio);
void set_gpio_toggle(unsigned short gpio)
{
unsigned long flags;
- BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+ BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
local_irq_save(flags);
gpio_bankb[gpio_bank(gpio)]->toggle = gpio_bit(gpio);
bfin_read_CHIPID();
#else
void set_gpio_toggle(unsigned short gpio)
{
- BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+ BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
gpio_bankb[gpio_bank(gpio)]->toggle = gpio_bit(gpio);
}
#endif
{
unsigned long flags;
unsigned short ret;
- BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+ BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
local_irq_save(flags);
ret = 0x01 & (gpio_bankb[gpio_bank(gpio)]->data >> gpio_sub_n(gpio));
bfin_read_CHIPID();
gpio_bank_saved[bank].dir = gpio_bankb[bank]->dir;
gpio_bank_saved[bank].edge = gpio_bankb[bank]->edge;
gpio_bank_saved[bank].both = gpio_bankb[bank]->both;
- gpio_bank_saved[bank].reserved = reserved_map[bank];
+ gpio_bank_saved[bank].reserved =
+ reserved_gpio_map[bank];
gpio = i;
while (mask) {
if (mask & 1) {
- reserved_map[gpio_bank(gpio)] |=
+ reserved_gpio_map[gpio_bank(gpio)] |=
gpio_bit(gpio);
bfin_gpio_wakeup_type(gpio,
wakeup_flags_map[gpio]);
gpio_bankb[bank]->edge = gpio_bank_saved[bank].edge;
gpio_bankb[bank]->both = gpio_bank_saved[bank].both;
- reserved_map[bank] = gpio_bank_saved[bank].reserved;
+ reserved_gpio_map[bank] =
+ gpio_bank_saved[bank].reserved;
}
#endif
+
+
+
+int peripheral_request(unsigned short per, const char *label)
+{
+ unsigned long flags;
+ unsigned short ident = P_IDENT(per);
+
+ /*
+ * Don't cares are pins with only one dedicated function
+ */
+
+ if (per & P_DONTCARE)
+ return 0;
+
+ if (!(per & P_DEFINED))
+ return -ENODEV;
+
+ local_irq_save(flags);
+
+ if (!check_gpio(ident)) {
+
+ if (unlikely(reserved_gpio_map[gpio_bank(ident)] & gpio_bit(ident))) {
+ printk(KERN_ERR
+ "%s: Peripheral %d is already reserved as GPIO by %s !\n",
+ __FUNCTION__, ident, get_label(ident));
+ dump_stack();
+ local_irq_restore(flags);
+ return -EBUSY;
+ }
+
+ }
+
+ if (unlikely(reserved_peri_map[gpio_bank(ident)] & gpio_bit(ident))) {
+
+ /*
+ * Pin functions like AMC address strobes my
+ * be requested and used by several drivers
+ */
+
+ if (!(per & P_MAYSHARE)) {
+
+ /*
+ * Allow that the identical pin function can
+ * be requested from the same driver twice
+ */
+
+ if (cmp_label(ident, label) == 0)
+ goto anyway;
+
+ printk(KERN_ERR
+ "%s: Peripheral %d function %d is already"
+ "reserved by %s !\n",
+ __FUNCTION__, ident, P_FUNCT2MUX(per),
+ get_label(ident));
+ dump_stack();
+ local_irq_restore(flags);
+ return -EBUSY;
+ }
+
+ }
+
+anyway:
+
+
+ portmux_setup(per, P_FUNCT2MUX(per));
+
+ port_setup(ident, PERIPHERAL_USAGE);
+
+ reserved_peri_map[gpio_bank(ident)] |= gpio_bit(ident);
+ local_irq_restore(flags);
+ set_label(ident, label);
+
+ return 0;
+}
+EXPORT_SYMBOL(peripheral_request);
+
+int peripheral_request_list(unsigned short per[], const char *label)
+{
+ u16 cnt;
+ int ret;
+
+ for (cnt = 0; per[cnt] != 0; cnt++) {
+ ret = peripheral_request(per[cnt], label);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(peripheral_request_list);
+
+void peripheral_free(unsigned short per)
+{
+ unsigned long flags;
+ unsigned short ident = P_IDENT(per);
+
+ if (per & P_DONTCARE)
+ return;
+
+ if (!(per & P_DEFINED))
+ return;
+
+ if (check_gpio(ident) < 0)
+ return;
+
+ local_irq_save(flags);
+
+ if (unlikely(!(reserved_peri_map[gpio_bank(ident)]
+ & gpio_bit(ident)))) {
+ local_irq_restore(flags);
+ return;
+ }
+
+ if (!(per & P_MAYSHARE)) {
+ port_setup(ident, GPIO_USAGE);
+ }
+
+ reserved_peri_map[gpio_bank(ident)] &= ~gpio_bit(ident);
+
+ local_irq_restore(flags);
+}
+EXPORT_SYMBOL(peripheral_free);
+
+void peripheral_free_list(unsigned short per[])
+{
+ u16 cnt;
+
+ for (cnt = 0; per[cnt] != 0; cnt++) {
+ peripheral_free(per[cnt]);
+ }
+
+}
+EXPORT_SYMBOL(peripheral_free_list);
+
/***********************************************************
*
* FUNCTIONS: Blackfin GPIO Driver
local_irq_save(flags);
- if (unlikely(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
+ if (unlikely(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
printk(KERN_ERR "bfin-gpio: GPIO %d is already reserved!\n", gpio);
dump_stack();
local_irq_restore(flags);
return -EBUSY;
}
- reserved_map[gpio_bank(gpio)] |= gpio_bit(gpio);
+ reserved_gpio_map[gpio_bank(gpio)] |= gpio_bit(gpio);
local_irq_restore(flags);
local_irq_save(flags);
- if (unlikely(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio)))) {
+ if (unlikely(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)))) {
printk(KERN_ERR "bfin-gpio: GPIO %d wasn't reserved!\n", gpio);
dump_stack();
local_irq_restore(flags);
default_gpio(gpio);
- reserved_map[gpio_bank(gpio)] &= ~gpio_bit(gpio);
+ reserved_gpio_map[gpio_bank(gpio)] &= ~gpio_bit(gpio);
local_irq_restore(flags);
}
{
unsigned long flags;
- BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+ BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
local_irq_save(flags);
gpio_bankb[gpio_bank(gpio)]->dir &= ~gpio_bit(gpio);
{
unsigned long flags;
- BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+ BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)));
local_irq_save(flags);
gpio_bankb[gpio_bank(gpio)]->inen &= ~gpio_bit(gpio);
ALIGN
ENTRY(_sys_call_table)
- .long _sys_ni_syscall /* 0 - old "setup()" system call*/
+ .long _sys_restart_syscall /* 0 */
.long _sys_exit
.long _sys_fork
.long _sys_read
.long _sys_sched_get_priority_min /* 160 */
.long _sys_sched_rr_get_interval
.long _sys_nanosleep
- .long _sys_ni_syscall /* sys_mremap */
+ .long _sys_mremap
.long _sys_setresuid /* setresuid16 */
.long _sys_getresuid /* getresuid16 */ /* 165 */
.long _sys_ni_syscall /* for vm86 */
.long _sys_ni_syscall /* old "query_module" */
.long _sys_ni_syscall /* sys_poll */
- .long _sys_ni_syscall /* sys_nfsservctl */
+ .long _sys_nfsservctl
.long _sys_setresgid /* setresgid16 */ /* 170 */
.long _sys_getresgid /* getresgid16 */
.long _sys_prctl
.long _sys_ni_syscall /* reserved for TUX */
.long _sys_ni_syscall
.long _sys_gettid
- .long _sys_ni_syscall /* 225 */ /* sys_readahead */
+ .long _sys_readahead /* 225 */
.long _sys_setxattr
.long _sys_lsetxattr
.long _sys_fsetxattr
.long _sys_shmctl
.long _sys_shmdt /* 340 */
.long _sys_shmget
+ .long _sys_splice
+ .long _sys_sync_file_range
+ .long _sys_tee
+ .long _sys_vmsplice /* 345 */
+ .long _sys_epoll_pwait
+ .long _sys_utimensat
+ .long _sys_signalfd
+ .long _sys_timerfd
+ .long _sys_eventfd /* 350 */
+ .long _sys_pread64
+ .long _sys_pwrite64
+ .long _sys_fadvise64
+ .long _sys_set_robust_list
+ .long _sys_get_robust_list /* 355 */
+ .long _sys_fallocate
.rept NR_syscalls-(.-_sys_call_table)/4
.long _sys_ni_syscall
.endr
hlt
jmp die
- .size die, .-due
+ .size die, .-die
.section ".initdata", "a"
setup_corrupt:
static int detect_memory_e820(void)
{
+ int count = 0;
u32 next = 0;
u32 size, id;
u8 err;
do {
size = sizeof(struct e820entry);
- id = SMAP;
+
+ /* Important: %edx is clobbered by some BIOSes,
+ so it must be either used for the error output
+ or explicitly marked clobbered. */
asm("int $0x15; setc %0"
- : "=am" (err), "+b" (next), "+d" (id), "+c" (size),
+ : "=d" (err), "+b" (next), "=a" (id), "+c" (size),
"=m" (*desc)
- : "D" (desc), "a" (0xe820));
+ : "D" (desc), "d" (SMAP), "a" (0xe820));
+
+ /* Some BIOSes stop returning SMAP in the middle of
+ the search loop. We don't know exactly how the BIOS
+ screwed up the map at that point, we might have a
+ partial map, the full map, or complete garbage, so
+ just return failure. */
+ if (id != SMAP) {
+ count = 0;
+ break;
+ }
- if (err || id != SMAP)
+ if (err)
break;
- boot_params.e820_entries++;
+ count++;
desc++;
- } while (next && boot_params.e820_entries < E820MAX);
+ } while (next && count < E820MAX);
- return boot_params.e820_entries;
+ return boot_params.e820_entries = count;
}
static int detect_memory_e801(void)
int detect_memory(void)
{
+ int err = -1;
+
if (detect_memory_e820() > 0)
- return 0;
+ err = 0;
if (!detect_memory_e801())
- return 0;
+ err = 0;
+
+ if (!detect_memory_88())
+ err = 0;
- return detect_memory_88();
+ return err;
}
}
/* Set mode (without recalc) */
-static int raw_set_mode(u16 mode)
+static int raw_set_mode(u16 mode, u16 *real_mode)
{
int nmode, i;
struct card_info *card;
if ((mode == nmode && visible) ||
mode == mi->mode ||
- mode == (mi->y << 8)+mi->x)
+ mode == (mi->y << 8)+mi->x) {
+ *real_mode = mi->mode;
return card->set_mode(mi);
+ }
if (visible)
nmode++;
if (mode >= card->xmode_first &&
mode < card->xmode_first+card->xmode_n) {
struct mode_info mix;
- mix.mode = mode;
+ *real_mode = mix.mode = mode;
mix.x = mix.y = 0;
return card->set_mode(&mix);
}
static int set_mode(u16 mode)
{
int rv;
+ u16 real_mode;
/* Very special mode numbers... */
if (mode == VIDEO_CURRENT_MODE)
else if (mode == EXTENDED_VGA)
mode = VIDEO_8POINT;
- rv = raw_set_mode(mode);
+ rv = raw_set_mode(mode, &real_mode);
if (rv)
return rv;
if (mode & VIDEO_RECALC)
vga_recalc_vertical();
+ /* Save the canonical mode number for the kernel, not
+ an alias, size specification or menu position */
+ boot_params.hdr.vid_mode = real_mode;
return 0;
}
#define VIDEO_FIRST_V7 0x0900
# Setting of user mode (AX=mode ID) => CF=success
+
+# For now, we only handle VESA modes (0x0200..0x03ff). To handle other
+# modes, we should probably compile in the video code from the boot
+# directory.
mode_set:
movw %ax, %bx
-#if 0
- cmpb $0xff, %ah
- jz setalias
-
- testb $VIDEO_RECALC>>8, %ah
- jnz _setrec
-
- cmpb $VIDEO_FIRST_RESOLUTION>>8, %ah
- jnc setres
-
- cmpb $VIDEO_FIRST_SPECIAL>>8, %ah
- jz setspc
-
- cmpb $VIDEO_FIRST_V7>>8, %ah
- jz setv7
-#endif
-
- cmpb $VIDEO_FIRST_VESA>>8, %ah
- jnc check_vesa
-#if 0
- orb %ah, %ah
- jz setmenu
-#endif
-
- decb %ah
-# jz setbios Add bios modes later
+ subb $VIDEO_FIRST_VESA>>8, %bh
+ cmpb $2, %bh
+ jb check_vesa
-setbad: clc
+setbad:
+ clc
ret
check_vesa:
- subb $VIDEO_FIRST_VESA>>8, %bh
orw $0x4000, %bx # Use linear frame buffer
movw $0x4f02, %ax # VESA BIOS mode set call
int $0x10
cmpw $0x004f, %ax # AL=4f if implemented
- jnz _setbad # AH=0 if OK
+ jnz setbad # AH=0 if OK
stc
ret
-_setbad: jmp setbad
-
.code32
ALIGN
/* Module parameters */
static int scale_voltage;
static int disable_acpi_c3;
+static int revid_errata;
#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "longhaul", msg)
rdmsrl(MSR_VIA_LONGHAUL, longhaul.val);
/* Setup new frequency */
- longhaul.bits.RevisionKey = longhaul.bits.RevisionID;
+ if (!revid_errata)
+ longhaul.bits.RevisionKey = longhaul.bits.RevisionID;
+ else
+ longhaul.bits.RevisionKey = 0;
longhaul.bits.SoftBusRatio = clock_ratio_index & 0xf;
longhaul.bits.SoftBusRatio4 = (clock_ratio_index & 0x10) >> 4;
/* Setup new voltage */
dprintk ("Setting to FSB:%dMHz Mult:%d.%dx (%s)\n",
fsb, mult/10, mult%10, print_speed(speed/1000));
-
+retry_loop:
preempt_disable();
local_irq_save(flags);
preempt_enable();
freqs.new = calc_speed(longhaul_get_cpu_mult());
+ /* Check if requested frequency is set. */
+ if (unlikely(freqs.new != speed)) {
+ printk(KERN_INFO PFX "Failed to set requested frequency!\n");
+ /* Revision ID = 1 but processor is expecting revision key
+ * equal to 0. Jumpers at the bottom of processor will change
+ * multiplier and FSB, but will not change bits in Longhaul
+ * MSR nor enable voltage scaling. */
+ if (!revid_errata) {
+ printk(KERN_INFO PFX "Enabling \"Ignore Revision ID\" "
+ "option.\n");
+ revid_errata = 1;
+ msleep(200);
+ goto retry_loop;
+ }
+ /* Why ACPI C3 sometimes doesn't work is a mystery for me.
+ * But it does happen. Processor is entering ACPI C3 state,
+ * but it doesn't change frequency. I tried poking various
+ * bits in northbridge registers, but without success. */
+ if (longhaul_flags & USE_ACPI_C3) {
+ printk(KERN_INFO PFX "Disabling ACPI C3 support.\n");
+ longhaul_flags &= ~USE_ACPI_C3;
+ if (revid_errata) {
+ printk(KERN_INFO PFX "Disabling \"Ignore "
+ "Revision ID\" option.\n");
+ revid_errata = 0;
+ }
+ msleep(200);
+ goto retry_loop;
+ }
+ /* This shouldn't happen. Longhaul ver. 2 was reported not
+ * working on processors without voltage scaling, but with
+ * RevID = 1. RevID errata will make things right. Just
+ * to be 100% sure. */
+ if (longhaul_version == TYPE_LONGHAUL_V2) {
+ printk(KERN_INFO PFX "Switching to Longhaul ver. 1\n");
+ longhaul_version = TYPE_LONGHAUL_V1;
+ msleep(200);
+ goto retry_loop;
+ }
+ }
+ /* Report true CPU frequency */
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
if (!bm_timeout)
kfree(longhaul_table);
}
+/* Even if BIOS is exporting ACPI C3 state, and it is used
+ * with success when CPU is idle, this state doesn't
+ * trigger frequency transition in some cases. */
module_param (disable_acpi_c3, int, 0644);
MODULE_PARM_DESC(disable_acpi_c3, "Don't use ACPI C3 support");
-
+/* Change CPU voltage with frequency. Very usefull to save
+ * power, but most VIA C3 processors aren't supporting it. */
module_param (scale_voltage, int, 0644);
MODULE_PARM_DESC(scale_voltage, "Scale voltage of processor");
+/* Force revision key to 0 for processors which doesn't
+ * support voltage scaling, but are introducing itself as
+ * such. */
+module_param(revid_errata, int, 0644);
+MODULE_PARM_DESC(revid_errata, "Ignore CPU Revision ID");
MODULE_AUTHOR ("Dave Jones <davej@codemonkey.org.uk>");
MODULE_DESCRIPTION ("Longhaul driver for VIA Cyrix processors.");
static void xen_write_cr4(unsigned long cr4)
{
- /* never allow TSC to be disabled */
- native_write_cr4(cr4 & ~X86_CR4_TSD);
+ /* Just ignore cr4 changes; Xen doesn't allow us to do
+ anything anyway. */
}
static unsigned long xen_read_cr3(void)
put_cpu();
spin_lock(&mm->page_table_lock);
- xen_pgd_unpin(mm->pgd);
+
+ /* pgd may not be pinned in the error exit path of execve */
+ if (PagePinned(virt_to_page(mm->pgd)))
+ xen_pgd_unpin(mm->pgd);
spin_unlock(&mm->page_table_lock);
}
printk(KERN_ERR "Unable to ioremap pci space\n");
return 1;
}
+ au1x_controller.io_map_base = virt_io_addr;
#ifdef CONFIG_DMA_NONCOHERENT
{
void __init board_setup(void)
{
-#ifdef CONFIG_USB_OHCI
+#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
// enable USB power switch
au_writel( au_readl(GPIO2_DIR) | 0x10, GPIO2_DIR );
au_writel( 0x100000, GPIO2_OUTPUT );
-#endif // defined (CONFIG_USB_OHCI)
+#endif /* defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) */
#ifdef CONFIG_PCI
#if defined(__MIPSEB__)
au_writel(0, SYS_PINSTATERD);
udelay(100);
-#ifdef CONFIG_USB_OHCI
+#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
/* zero and disable FREQ2 */
sys_freqctrl = au_readl(SYS_FREQCTRL0);
sys_freqctrl &= ~0xFFF00000;
/*
* Route 48MHz FREQ2 into USB Host and/or Device
*/
-#ifdef CONFIG_USB_OHCI
+#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
sys_clksrc |= ((4<<12) | (0<<11) | (0<<10));
#endif
au_writel(sys_clksrc, SYS_CLKSRC);
au_writel(pin_func, SYS_PINFUNC);
au_writel(0x2800, SYS_TRIOUTCLR);
au_writel(0x0030, SYS_OUTPUTCLR);
-#endif // defined (CONFIG_USB_OHCI)
+#endif /* defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) */
// make gpio 15 an input (for interrupt line)
pin_func = au_readl(SYS_PINFUNC) & (u32)(~0x100);
au_writel(0, SYS_PININPUTEN);
udelay(100);
-#ifdef CONFIG_USB_OHCI
+#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
{
u32 pin_func, sys_freqctrl, sys_clksrc;
pin_func |= 0x8000;
au_writel(pin_func, SYS_PINFUNC);
}
-#endif // defined (CONFIG_USB_OHCI)
+#endif /* defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) */
/* Enable sys bus clock divider when IDLE state or no bus activity. */
au_writel(au_readl(SYS_POWERCTRL) | (0x3 << 5), SYS_POWERCTRL);
au_writel(0, SYS_PINSTATERD);
udelay(100);
-#ifdef CONFIG_USB_OHCI
+#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
/* GPIO201 is input for PCMCIA card detect */
/* GPIO203 is input for PCMCIA interrupt request */
/*
* Route 48MHz FREQ2 into USB Host and/or Device
*/
-#ifdef CONFIG_USB_OHCI
+#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
sys_clksrc |= ((4<<12) | (0<<11) | (0<<10));
#endif
au_writel(sys_clksrc, SYS_CLKSRC);
// 2nd USB port is USB host
pin_func |= 0x8000;
au_writel(pin_func, SYS_PINFUNC);
-#endif // defined (CONFIG_USB_OHCI)
+#endif /* defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) */
int dec_tc_bus;
-spinlock_t ioasic_ssr_lock;
+DEFINE_SPINLOCK(ioasic_ssr_lock);
volatile u32 *ioasic_base;
/*
- * Copyright (C) 2003, 2004 Maciej W. Rozycki
+ * Copyright (C) 2003, 2004, 2007 Maciej W. Rozycki
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
".endr\n\t"
".set pop"
:
- : "rn" (align), "rn" (mod));
+ : GCC_IMM_ASM (align), GCC_IMM_ASM (mod));
}
static inline void mult_sh_align_mod(long *v1, long *v2, long *w,
outb(cached_master_mask, PIC_MASTER_IMR);
outb(0x60+irq,PIC_MASTER_CMD); /* 'Specific EOI to master */
}
-#ifdef CONFIG_MIPS_MT_SMTC
- if (irq_hwmask[irq] & ST0_IM)
- set_c0_status(irq_hwmask[irq] & ST0_IM);
-#endif /* CONFIG_MIPS_MT_SMTC */
+ smtc_im_ack_irq(irq);
spin_unlock_irqrestore(&i8259A_lock, flags);
return;
mask_msc_irq(irq);
if (!cpu_has_veic)
MSCIC_WRITE(MSC01_IC_EOI, 0);
-#ifdef CONFIG_MIPS_MT_SMTC
/* This actually needs to be a call into platform code */
- if (irq_hwmask[irq] & ST0_IM)
- set_c0_status(irq_hwmask[irq] & ST0_IM);
-#endif /* CONFIG_MIPS_MT_SMTC */
+ smtc_im_ack_irq(irq);
}
/*
MSCIC_WRITE(MSC01_IC_SUP+irq*8, r | ~MSC01_IC_SUP_EDGE_BIT);
MSCIC_WRITE(MSC01_IC_SUP+irq*8, r);
}
-#ifdef CONFIG_MIPS_MT_SMTC
- if (irq_hwmask[irq] & ST0_IM)
- set_c0_status(irq_hwmask[irq] & ST0_IM);
-#endif /* CONFIG_MIPS_MT_SMTC */
+ smtc_im_ack_irq(irq);
}
/*
*/
void ack_bad_irq(unsigned int irq)
{
+ smtc_im_ack_irq(irq);
printk("unexpected IRQ # %d\n", irq);
}
atomic_t irq_err_count;
-#ifdef CONFIG_MIPS_MT_SMTC
-/*
- * SMTC Kernel needs to manipulate low-level CPU interrupt mask
- * in do_IRQ. These are passed in setup_irq_smtc() and stored
- * in this table.
- */
-unsigned long irq_hwmask[NR_IRQS];
-#endif /* CONFIG_MIPS_MT_SMTC */
-
/*
* Generic, controller-independent functions:
*/
PTR compat_sys_signalfd
PTR compat_sys_timerfd
PTR sys_eventfd
- PTR sys_fallocate /* 4320 */
+ PTR sys32_fallocate /* 4320 */
.size sys_call_table,.-sys_call_table
#include <asm/smtc_proc.h>
/*
- * This file should be built into the kernel only if CONFIG_MIPS_MT_SMTC is set.
+ * SMTC Kernel needs to manipulate low-level CPU interrupt mask
+ * in do_IRQ. These are passed in setup_irq_smtc() and stored
+ * in this table.
*/
+unsigned long irq_hwmask[NR_IRQS];
#define LOCK_MT_PRA() \
local_irq_save(flags); \
__dbe_table : { *(__dbe_table) }
__stop___dbe_table = .;
+ NOTES
+
RODATA
/* writeable */
}
if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x())
- build_insn_word(0x3c01a000); /* lui $at, 0xa000 */
+ build_insn_word(0x8c200000); /* lw $zero, ($at) */
mi.c_format.opcode = cache_op;
mi.c_format.rs = 4; /* $a0 */
* 4 N/C
*/
-#define chkslot(_bus,_devfn) \
-do { \
- if ((_bus)->number > 0 || PCI_SLOT (_devfn) < 1 \
- || PCI_SLOT (_devfn) > 3) \
- return PCIBIOS_DEVICE_NOT_FOUND; \
-} while (0)
+static inline int mkaddr(struct pci_bus *bus, unsigned int devfn,
+ unsigned int reg)
+{
+ return ((bus->number & 0xff) << 16) |
+ ((devfn & 0xff) << 8) |
+ (reg & 0xfc);
+}
-#define mkaddr(_devfn, _reg) \
-((((_devfn) & 0xffUL) << 8) | ((_reg) & 0xfcUL))
static int
mace_pci_read_config(struct pci_bus *bus, unsigned int devfn,
int reg, int size, u32 *val)
{
- chkslot(bus, devfn);
- mace->pci.config_addr = mkaddr(devfn, reg);
+ mace->pci.config_addr = mkaddr(bus, devfn, reg);
switch (size) {
case 1:
*val = mace->pci.config_data.b[(reg & 3) ^ 3];
mace_pci_write_config(struct pci_bus *bus, unsigned int devfn,
int reg, int size, u32 val)
{
- chkslot(bus, devfn);
- mace->pci.config_addr = mkaddr(devfn, reg);
+ mace->pci.config_addr = mkaddr(bus, devfn, reg);
switch (size) {
case 1:
mace->pci.config_data.b[(reg & 3) ^ 3] = val;
static int __init uart8250_init(void)
{
- uart8250_data[0].iobase = (unsigned long) &mace->isa.serial1;
- uart8250_data[1].iobase = (unsigned long) &mace->isa.serial1;
+ uart8250_data[0].membase = (void __iomem *) &mace->isa.serial1;
+ uart8250_data[1].membase = (void __iomem *) &mace->isa.serial1;
return platform_device_register(&uart8250_device);
}
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
+#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/reboot.h>
EXPORT_SYMBOL(soc_type);
unsigned int periph_rev;
unsigned int zbbus_mhz;
+EXPORT_SYMBOL(zbbus_mhz);
static unsigned int part_type;
#size-cells = <0>;
interrupt-parent = < &ipic >;
interrupts = <26 8>;
+ dr_mode = "peripheral";
phy_type = "ulpi";
};
regs->ccr = 0;
regs->gpr[1] = sp;
+ /*
+ * We have just cleared all the nonvolatile GPRs, so make
+ * FULL_REGS(regs) return true. This is necessary to allow
+ * ptrace to examine the thread immediately after exec.
+ */
+ regs->trap &= ~1UL;
+
#ifdef CONFIG_PPC32
regs->mq = 0;
regs->nip = start;
struct cpu_purr_data *p = &__get_cpu_var(cpu_purr_data);
local_irq_save(flags);
- p->tb = mftb();
+ p->tb = get_tb_or_rtc();
p->purr = mfspr(SPRN_PURR);
wmb();
p->initialized = 1;
*/
void snapshot_timebase(void)
{
- __get_cpu_var(last_jiffy) = get_tb();
+ __get_cpu_var(last_jiffy) = get_tb_or_rtc();
snapshot_purr();
}
write_seqlock(&xtime_lock);
tb_next_jiffy = tb_last_jiffy + tb_ticks_per_jiffy;
+ if (__USE_RTC() && tb_next_jiffy >= 1000000000)
+ tb_next_jiffy -= 1000000000;
if (per_cpu(last_jiffy, cpu) >= tb_next_jiffy) {
tb_last_jiffy = tb_next_jiffy;
do_timer(1);
tb_to_ns_scale = scale;
tb_to_ns_shift = shift;
/* Save the current timebase to pretty up CONFIG_PRINTK_TIME */
- boot_tb = get_tb();
+ boot_tb = get_tb_or_rtc();
tm = get_boot_time();
CPU_FTR_USE_TB, 0,
"__kernel_gettimeofday", NULL
},
+ {
+ CPU_FTR_USE_TB, 0,
+ "__kernel_clock_gettime", NULL
+ },
+ {
+ CPU_FTR_USE_TB, 0,
+ "__kernel_clock_getres", NULL
+ },
+ {
+ CPU_FTR_USE_TB, 0,
+ "__kernel_get_tbfreq", NULL
+ },
};
/*
if (port0_is_dr)
printk(KERN_WARNING
"834x USB port0 can't be used by both DR and MPH!\n");
- sicrl |= MPC834X_SICRL_USB0;
+ sicrl &= ~MPC834X_SICRL_USB0;
}
prop = of_get_property(np, "port1", NULL);
if (prop) {
if (port1_is_dr)
printk(KERN_WARNING
"834x USB port1 can't be used by both DR and MPH!\n");
- sicrl |= MPC834X_SICRL_USB1;
+ sicrl &= ~MPC834X_SICRL_USB1;
}
of_node_put(np);
}
{ "mbox_stat", &spufs_mbox_stat_fops, 0444, },
{ "ibox_stat", &spufs_ibox_stat_fops, 0444, },
{ "wbox_stat", &spufs_wbox_stat_fops, 0444, },
- { "signal1", &spufs_signal1_nosched_fops, 0222, },
- { "signal2", &spufs_signal2_nosched_fops, 0222, },
+ { "signal1", &spufs_signal1_fops, 0666, },
+ { "signal2", &spufs_signal2_fops, 0666, },
{ "signal1_type", &spufs_signal1_type, 0666, },
{ "signal2_type", &spufs_signal2_type, 0666, },
{ "cntl", &spufs_cntl_fops, 0666, },
list_for_each_entry(spu, &cbe_spu_info[node].spus, cbe_list) {
struct spu_context *tmp = spu->ctx;
- if (tmp->prio > ctx->prio &&
+ if (tmp && tmp->prio > ctx->prio &&
(!victim || tmp->prio > victim->prio))
victim = spu->ctx;
}
mutex_lock(&cbe_spu_info[node].list_mutex);
cbe_spu_info[node].nr_active--;
+ spu_unbind_context(spu, victim);
mutex_unlock(&cbe_spu_info[node].list_mutex);
- spu_unbind_context(spu, victim);
victim->stats.invol_ctx_switch++;
spu->stats.invol_ctx_switch++;
mutex_unlock(&victim->state_mutex);
* For the moment only implement delivery to all cpus or one cpu.
* Get current irq_server for the given irq
*/
- irq_server = get_irq_server(irq, 1);
+ irq_server = get_irq_server(virq, 1);
if (irq_server == -1) {
char cpulist[128];
cpumask_scnprintf(cpulist, sizeof(cpulist), cpumask);
{
return (dpram_pbase + (uint)(addr - dpram_vbase));
}
-EXPORT_SYMBOL(cpm_dpram_addr);
+EXPORT_SYMBOL(cpm_dpram_phys);
void *cpm_dpram_addr(unsigned long offset)
{
- return ((immap_t *)IMAP_ADDR)->im_cpm.cp_dpmem + offset;
+ return (void *)(dpram_vbase + offset);
}
EXPORT_SYMBOL(cpm_dpram_addr);
dev->prom_node = dp;
regs = of_get_property(dp, "reg", &len);
+ if (!regs)
+ len = 0;
if (len % sizeof(struct linux_prom_registers)) {
prom_printf("UGH: proplen for %s was %d, need multiple of %d\n",
dev->prom_node->name, len,
get_user(c,p++);
} while (c);
}
- put_user(NULL,argv);
+ put_user(0,argv);
current->mm->arg_end = current->mm->env_start = (unsigned long) p;
while (envc-->0) {
char c;
get_user(c,p++);
} while (c);
}
- put_user(NULL,envp);
+ put_user(0,envp);
current->mm->env_end = (unsigned long) p;
return sp;
}
dev->num_addrs = 0;
dev->num_irqs = 0;
} else {
- (void) of_get_property(dp, "reg", &len);
+ const int *regs = of_get_property(dp, "reg", &len);
+
+ if (!regs)
+ len = 0;
dev->num_addrs = len / sizeof(struct linux_prom_registers);
for (i = 0; i < dev->num_addrs; i++)
unsigned int func = PCI_FUNC(devfn);
unsigned long ret;
- if (bus_dev == pbm->pci_bus && devfn == 0x00)
+ if (!bus && devfn == 0x00)
return pci_host_bridge_read_pci_cfg(bus_dev, devfn, where,
size, value);
if (config_out_of_range(pbm, bus, devfn, where)) {
unsigned int func = PCI_FUNC(devfn);
unsigned long ret;
- if (bus_dev == pbm->pci_bus && devfn == 0x00)
+ if (!bus && devfn == 0x00)
return pci_host_bridge_write_pci_cfg(bus_dev, devfn, where,
size, value);
if (config_out_of_range(pbm, bus, devfn, where)) {
if (!strcmp(dp->name, "fhc") &&
!strcmp(dp->parent->name, "central"))
return central_irq_trans_init(dp);
- if (!strcmp(dp->name, "virtual-devices"))
+ if (!strcmp(dp->name, "virtual-devices") ||
+ !strcmp(dp->name, "niu"))
return sun4v_vdev_irq_trans_init(dp);
}
int timeout, ret;
p = fork_idle(cpu);
+ if (IS_ERR(p))
+ return PTR_ERR(p);
callin_flag = 0;
cpu_new_thread = task_thread_info(p);
}
vdev->dp = dp;
- printk(KERN_ERR "VIO: Adding device %s\n", vdev->dev.bus_id);
+ printk(KERN_INFO "VIO: Adding device %s\n", vdev->dev.bus_id);
err = device_register(&vdev->dev);
if (err) {
.node_name = "virtual-device-port",
};
+/* We are only interested in domain service ports under the
+ * "domain-services" node. On control nodes there is another port
+ * under "openboot" that we should not mess with as aparently that is
+ * reserved exclusively for OBP use.
+ */
+static void vio_add_ds(struct mdesc_handle *hp, u64 node)
+{
+ int found;
+ u64 a;
+
+ found = 0;
+ mdesc_for_each_arc(a, hp, node, MDESC_ARC_TYPE_BACK) {
+ u64 target = mdesc_arc_target(hp, a);
+ const char *name = mdesc_node_name(hp, target);
+
+ if (!strcmp(name, "domain-services")) {
+ found = 1;
+ break;
+ }
+ }
+
+ if (found)
+ (void) vio_create_one(hp, node, &root_vdev->dev);
+}
+
static struct mdesc_notifier_client vio_ds_notifier = {
- .add = vio_add,
+ .add = vio_add_ds,
.remove = vio_remove,
.node_name = "domain-services-port",
};
/* NGcopy_from_user.S: Niagara optimized copy from userspace.
*
- * Copyright (C) 2006 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net)
*/
#define EX_LD(x) \
.section .fixup; \
.align 4; \
99: wr %g0, ASI_AIUS, %asi;\
- retl; \
- mov 1, %o0; \
+ ret; \
+ restore %g0, 1, %o0; \
.section __ex_table,"a";\
.align 4; \
.word 98b, 99b; \
#define LOAD(type,addr,dest) type##a [addr] ASI_AIUS, dest
#define LOAD_TWIN(addr_reg,dest0,dest1) \
ldda [addr_reg] ASI_BLK_INIT_QUAD_LDD_AIUS, dest0
-#define EX_RETVAL(x) 0
+#define EX_RETVAL(x) %g0
#ifdef __KERNEL__
#define PREAMBLE \
/* NGcopy_to_user.S: Niagara optimized copy to userspace.
*
- * Copyright (C) 2006 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net)
*/
#define EX_ST(x) \
.section .fixup; \
.align 4; \
99: wr %g0, ASI_AIUS, %asi;\
- retl; \
- mov 1, %o0; \
+ ret; \
+ restore %g0, 1, %o0; \
.section __ex_table,"a";\
.align 4; \
.word 98b, 99b; \
#define FUNC_NAME NGcopy_to_user
#define STORE(type,src,addr) type##a src, [addr] ASI_AIUS
#define STORE_ASI ASI_BLK_INIT_QUAD_LDD_AIUS
-#define EX_RETVAL(x) 0
+#define EX_RETVAL(x) %g0
#ifdef __KERNEL__
/* Writing to %asi is _expensive_ so we hardcode it.
/* NGmemcpy.S: Niagara optimized memcpy.
*
- * Copyright (C) 2006 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net)
*/
#ifdef __KERNEL__
wr %g0, ASI_PNF, %asi
#endif
+#ifdef __sparc_v9__
+#define SAVE_AMOUNT 128
+#else
+#define SAVE_AMOUNT 64
+#endif
+
#ifndef STORE_ASI
#define STORE_ASI ASI_BLK_INIT_QUAD_LDD_P
#endif
#endif
#ifndef STORE_INIT
+#ifndef SIMULATE_NIAGARA_ON_NON_NIAGARA
#define STORE_INIT(src,addr) stxa src, [addr] %asi
+#else
+#define STORE_INIT(src,addr) stx src, [addr + 0x00]
+#endif
#endif
#ifndef FUNC_NAME
.globl FUNC_NAME
.type FUNC_NAME,#function
-FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
- srlx %o2, 31, %g2
+FUNC_NAME: /* %i0=dst, %i1=src, %i2=len */
+ PREAMBLE
+ save %sp, -SAVE_AMOUNT, %sp
+ srlx %i2, 31, %g2
cmp %g2, 0
tne %xcc, 5
- PREAMBLE
- mov %o0, GLOBAL_SPARE
- cmp %o2, 0
+ mov %i0, %o0
+ cmp %i2, 0
be,pn %XCC, 85f
- or %o0, %o1, %o3
- cmp %o2, 16
+ or %o0, %i1, %i3
+ cmp %i2, 16
blu,a,pn %XCC, 80f
- or %o3, %o2, %o3
+ or %i3, %i2, %i3
/* 2 blocks (128 bytes) is the minimum we can do the block
* copy with. We need to ensure that we'll iterate at least
* to (64 - 1) bytes from the length before we perform the
* block copy loop.
*/
- cmp %o2, (2 * 64)
+ cmp %i2, (2 * 64)
blu,pt %XCC, 70f
- andcc %o3, 0x7, %g0
+ andcc %i3, 0x7, %g0
/* %o0: dst
- * %o1: src
- * %o2: len (known to be >= 128)
+ * %i1: src
+ * %i2: len (known to be >= 128)
*
- * The block copy loops will use %o4/%o5,%g2/%g3 as
+ * The block copy loops will use %i4/%i5,%g2/%g3 as
* temporaries while copying the data.
*/
- LOAD(prefetch, %o1, #one_read)
+ LOAD(prefetch, %i1, #one_read)
wr %g0, STORE_ASI, %asi
/* Align destination on 64-byte boundary. */
- andcc %o0, (64 - 1), %o4
+ andcc %o0, (64 - 1), %i4
be,pt %XCC, 2f
- sub %o4, 64, %o4
- sub %g0, %o4, %o4 ! bytes to align dst
- sub %o2, %o4, %o2
-1: subcc %o4, 1, %o4
- EX_LD(LOAD(ldub, %o1, %g1))
+ sub %i4, 64, %i4
+ sub %g0, %i4, %i4 ! bytes to align dst
+ sub %i2, %i4, %i2
+1: subcc %i4, 1, %i4
+ EX_LD(LOAD(ldub, %i1, %g1))
EX_ST(STORE(stb, %g1, %o0))
- add %o1, 1, %o1
+ add %i1, 1, %i1
bne,pt %XCC, 1b
add %o0, 1, %o0
* aligned store data at a time, this is easy to ensure.
*/
2:
- andcc %o1, (16 - 1), %o4
- andn %o2, (64 - 1), %g1 ! block copy loop iterator
- sub %o2, %g1, %o2 ! final sub-block copy bytes
+ andcc %i1, (16 - 1), %i4
+ andn %i2, (64 - 1), %g1 ! block copy loop iterator
be,pt %XCC, 50f
- cmp %o4, 8
- be,a,pt %XCC, 10f
- sub %o1, 0x8, %o1
+ sub %i2, %g1, %i2 ! final sub-block copy bytes
+
+ cmp %i4, 8
+ be,pt %XCC, 10f
+ sub %i1, %i4, %i1
/* Neither 8-byte nor 16-byte aligned, shift and mask. */
- mov %g1, %o4
- and %o1, 0x7, %g1
- sll %g1, 3, %g1
- mov 64, %o3
- andn %o1, 0x7, %o1
- EX_LD(LOAD(ldx, %o1, %g2))
- sub %o3, %g1, %o3
- sllx %g2, %g1, %g2
+ and %i4, 0x7, GLOBAL_SPARE
+ sll GLOBAL_SPARE, 3, GLOBAL_SPARE
+ mov 64, %i5
+ EX_LD(LOAD_TWIN(%i1, %g2, %g3))
+ sub %i5, GLOBAL_SPARE, %i5
+ mov 16, %o4
+ mov 32, %o5
+ mov 48, %o7
+ mov 64, %i3
+
+ bg,pn %XCC, 9f
+ nop
-#define SWIVEL_ONE_DWORD(SRC, TMP1, TMP2, PRE_VAL, PRE_SHIFT, POST_SHIFT, DST)\
- EX_LD(LOAD(ldx, SRC, TMP1)); \
- srlx TMP1, PRE_SHIFT, TMP2; \
- or TMP2, PRE_VAL, TMP2; \
- EX_ST(STORE_INIT(TMP2, DST)); \
- sllx TMP1, POST_SHIFT, PRE_VAL;
-
-1: add %o1, 0x8, %o1
- SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x00)
- add %o1, 0x8, %o1
- SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x08)
- add %o1, 0x8, %o1
- SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x10)
- add %o1, 0x8, %o1
- SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x18)
- add %o1, 32, %o1
- LOAD(prefetch, %o1, #one_read)
- sub %o1, 32 - 8, %o1
- SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x20)
- add %o1, 8, %o1
- SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x28)
- add %o1, 8, %o1
- SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x30)
- add %o1, 8, %o1
- SWIVEL_ONE_DWORD(%o1, %g3, %o5, %g2, %o3, %g1, %o0 + 0x38)
- subcc %o4, 64, %o4
- bne,pt %XCC, 1b
+#define MIX_THREE_WORDS(WORD1, WORD2, WORD3, PRE_SHIFT, POST_SHIFT, TMP) \
+ sllx WORD1, POST_SHIFT, WORD1; \
+ srlx WORD2, PRE_SHIFT, TMP; \
+ sllx WORD2, POST_SHIFT, WORD2; \
+ or WORD1, TMP, WORD1; \
+ srlx WORD3, PRE_SHIFT, TMP; \
+ or WORD2, TMP, WORD2;
+
+8: EX_LD(LOAD_TWIN(%i1 + %o4, %o2, %o3))
+ MIX_THREE_WORDS(%g2, %g3, %o2, %i5, GLOBAL_SPARE, %o1)
+ LOAD(prefetch, %i1 + %i3, #one_read)
+
+ EX_ST(STORE_INIT(%g2, %o0 + 0x00))
+ EX_ST(STORE_INIT(%g3, %o0 + 0x08))
+
+ EX_LD(LOAD_TWIN(%i1 + %o5, %g2, %g3))
+ MIX_THREE_WORDS(%o2, %o3, %g2, %i5, GLOBAL_SPARE, %o1)
+
+ EX_ST(STORE_INIT(%o2, %o0 + 0x10))
+ EX_ST(STORE_INIT(%o3, %o0 + 0x18))
+
+ EX_LD(LOAD_TWIN(%i1 + %o7, %o2, %o3))
+ MIX_THREE_WORDS(%g2, %g3, %o2, %i5, GLOBAL_SPARE, %o1)
+
+ EX_ST(STORE_INIT(%g2, %o0 + 0x20))
+ EX_ST(STORE_INIT(%g3, %o0 + 0x28))
+
+ EX_LD(LOAD_TWIN(%i1 + %i3, %g2, %g3))
+ add %i1, 64, %i1
+ MIX_THREE_WORDS(%o2, %o3, %g2, %i5, GLOBAL_SPARE, %o1)
+
+ EX_ST(STORE_INIT(%o2, %o0 + 0x30))
+ EX_ST(STORE_INIT(%o3, %o0 + 0x38))
+
+ subcc %g1, 64, %g1
+ bne,pt %XCC, 8b
add %o0, 64, %o0
-#undef SWIVEL_ONE_DWORD
+ ba,pt %XCC, 60f
+ add %i1, %i4, %i1
+
+9: EX_LD(LOAD_TWIN(%i1 + %o4, %o2, %o3))
+ MIX_THREE_WORDS(%g3, %o2, %o3, %i5, GLOBAL_SPARE, %o1)
+ LOAD(prefetch, %i1 + %i3, #one_read)
+
+ EX_ST(STORE_INIT(%g3, %o0 + 0x00))
+ EX_ST(STORE_INIT(%o2, %o0 + 0x08))
+
+ EX_LD(LOAD_TWIN(%i1 + %o5, %g2, %g3))
+ MIX_THREE_WORDS(%o3, %g2, %g3, %i5, GLOBAL_SPARE, %o1)
+
+ EX_ST(STORE_INIT(%o3, %o0 + 0x10))
+ EX_ST(STORE_INIT(%g2, %o0 + 0x18))
+
+ EX_LD(LOAD_TWIN(%i1 + %o7, %o2, %o3))
+ MIX_THREE_WORDS(%g3, %o2, %o3, %i5, GLOBAL_SPARE, %o1)
+
+ EX_ST(STORE_INIT(%g3, %o0 + 0x20))
+ EX_ST(STORE_INIT(%o2, %o0 + 0x28))
+
+ EX_LD(LOAD_TWIN(%i1 + %i3, %g2, %g3))
+ add %i1, 64, %i1
+ MIX_THREE_WORDS(%o3, %g2, %g3, %i5, GLOBAL_SPARE, %o1)
+
+ EX_ST(STORE_INIT(%o3, %o0 + 0x30))
+ EX_ST(STORE_INIT(%g2, %o0 + 0x38))
+
+ subcc %g1, 64, %g1
+ bne,pt %XCC, 9b
+ add %o0, 64, %o0
- srl %g1, 3, %g1
ba,pt %XCC, 60f
- add %o1, %g1, %o1
+ add %i1, %i4, %i1
10: /* Destination is 64-byte aligned, source was only 8-byte
* aligned but it has been subtracted by 8 and we perform
* one twin load ahead, then add 8 back into source when
* we finish the loop.
*/
- EX_LD(LOAD_TWIN(%o1, %o4, %o5))
-1: add %o1, 16, %o1
- EX_LD(LOAD_TWIN(%o1, %g2, %g3))
- add %o1, 16 + 32, %o1
- LOAD(prefetch, %o1, #one_read)
- sub %o1, 32, %o1
+ EX_LD(LOAD_TWIN(%i1, %o4, %o5))
+ mov 16, %o7
+ mov 32, %g2
+ mov 48, %g3
+ mov 64, %o1
+1: EX_LD(LOAD_TWIN(%i1 + %o7, %o2, %o3))
+ LOAD(prefetch, %i1 + %o1, #one_read)
EX_ST(STORE_INIT(%o5, %o0 + 0x00)) ! initializes cache line
- EX_ST(STORE_INIT(%g2, %o0 + 0x08))
- EX_LD(LOAD_TWIN(%o1, %o4, %o5))
- add %o1, 16, %o1
- EX_ST(STORE_INIT(%g3, %o0 + 0x10))
+ EX_ST(STORE_INIT(%o2, %o0 + 0x08))
+ EX_LD(LOAD_TWIN(%i1 + %g2, %o4, %o5))
+ EX_ST(STORE_INIT(%o3, %o0 + 0x10))
EX_ST(STORE_INIT(%o4, %o0 + 0x18))
- EX_LD(LOAD_TWIN(%o1, %g2, %g3))
- add %o1, 16, %o1
+ EX_LD(LOAD_TWIN(%i1 + %g3, %o2, %o3))
EX_ST(STORE_INIT(%o5, %o0 + 0x20))
- EX_ST(STORE_INIT(%g2, %o0 + 0x28))
- EX_LD(LOAD_TWIN(%o1, %o4, %o5))
- EX_ST(STORE_INIT(%g3, %o0 + 0x30))
+ EX_ST(STORE_INIT(%o2, %o0 + 0x28))
+ EX_LD(LOAD_TWIN(%i1 + %o1, %o4, %o5))
+ add %i1, 64, %i1
+ EX_ST(STORE_INIT(%o3, %o0 + 0x30))
EX_ST(STORE_INIT(%o4, %o0 + 0x38))
subcc %g1, 64, %g1
bne,pt %XCC, 1b
add %o0, 64, %o0
ba,pt %XCC, 60f
- add %o1, 0x8, %o1
+ add %i1, 0x8, %i1
50: /* Destination is 64-byte aligned, and source is 16-byte
* aligned.
*/
-1: EX_LD(LOAD_TWIN(%o1, %o4, %o5))
- add %o1, 16, %o1
- EX_LD(LOAD_TWIN(%o1, %g2, %g3))
- add %o1, 16 + 32, %o1
- LOAD(prefetch, %o1, #one_read)
- sub %o1, 32, %o1
+ mov 16, %o7
+ mov 32, %g2
+ mov 48, %g3
+ mov 64, %o1
+1: EX_LD(LOAD_TWIN(%i1 + %g0, %o4, %o5))
+ EX_LD(LOAD_TWIN(%i1 + %o7, %o2, %o3))
+ LOAD(prefetch, %i1 + %o1, #one_read)
EX_ST(STORE_INIT(%o4, %o0 + 0x00)) ! initializes cache line
EX_ST(STORE_INIT(%o5, %o0 + 0x08))
- EX_LD(LOAD_TWIN(%o1, %o4, %o5))
- add %o1, 16, %o1
- EX_ST(STORE_INIT(%g2, %o0 + 0x10))
- EX_ST(STORE_INIT(%g3, %o0 + 0x18))
- EX_LD(LOAD_TWIN(%o1, %g2, %g3))
- add %o1, 16, %o1
+ EX_LD(LOAD_TWIN(%i1 + %g2, %o4, %o5))
+ EX_ST(STORE_INIT(%o2, %o0 + 0x10))
+ EX_ST(STORE_INIT(%o3, %o0 + 0x18))
+ EX_LD(LOAD_TWIN(%i1 + %g3, %o2, %o3))
+ add %i1, 64, %i1
EX_ST(STORE_INIT(%o4, %o0 + 0x20))
EX_ST(STORE_INIT(%o5, %o0 + 0x28))
- EX_ST(STORE_INIT(%g2, %o0 + 0x30))
- EX_ST(STORE_INIT(%g3, %o0 + 0x38))
+ EX_ST(STORE_INIT(%o2, %o0 + 0x30))
+ EX_ST(STORE_INIT(%o3, %o0 + 0x38))
subcc %g1, 64, %g1
bne,pt %XCC, 1b
add %o0, 64, %o0
60:
membar #Sync
- /* %o2 contains any final bytes still needed to be copied
+ /* %i2 contains any final bytes still needed to be copied
* over. If anything is left, we copy it one byte at a time.
*/
- RESTORE_ASI(%o3)
- brz,pt %o2, 85f
- sub %o0, %o1, %o3
+ RESTORE_ASI(%i3)
+ brz,pt %i2, 85f
+ sub %o0, %i1, %i3
ba,a,pt %XCC, 90f
.align 64
70: /* 16 < len <= 64 */
bne,pn %XCC, 75f
- sub %o0, %o1, %o3
+ sub %o0, %i1, %i3
72:
- andn %o2, 0xf, %o4
- and %o2, 0xf, %o2
-1: subcc %o4, 0x10, %o4
- EX_LD(LOAD(ldx, %o1, %o5))
- add %o1, 0x08, %o1
- EX_LD(LOAD(ldx, %o1, %g1))
- sub %o1, 0x08, %o1
- EX_ST(STORE(stx, %o5, %o1 + %o3))
- add %o1, 0x8, %o1
- EX_ST(STORE(stx, %g1, %o1 + %o3))
+ andn %i2, 0xf, %i4
+ and %i2, 0xf, %i2
+1: subcc %i4, 0x10, %i4
+ EX_LD(LOAD(ldx, %i1, %o4))
+ add %i1, 0x08, %i1
+ EX_LD(LOAD(ldx, %i1, %g1))
+ sub %i1, 0x08, %i1
+ EX_ST(STORE(stx, %o4, %i1 + %i3))
+ add %i1, 0x8, %i1
+ EX_ST(STORE(stx, %g1, %i1 + %i3))
bgu,pt %XCC, 1b
- add %o1, 0x8, %o1
-73: andcc %o2, 0x8, %g0
+ add %i1, 0x8, %i1
+73: andcc %i2, 0x8, %g0
be,pt %XCC, 1f
nop
- sub %o2, 0x8, %o2
- EX_LD(LOAD(ldx, %o1, %o5))
- EX_ST(STORE(stx, %o5, %o1 + %o3))
- add %o1, 0x8, %o1
-1: andcc %o2, 0x4, %g0
+ sub %i2, 0x8, %i2
+ EX_LD(LOAD(ldx, %i1, %o4))
+ EX_ST(STORE(stx, %o4, %i1 + %i3))
+ add %i1, 0x8, %i1
+1: andcc %i2, 0x4, %g0
be,pt %XCC, 1f
nop
- sub %o2, 0x4, %o2
- EX_LD(LOAD(lduw, %o1, %o5))
- EX_ST(STORE(stw, %o5, %o1 + %o3))
- add %o1, 0x4, %o1
-1: cmp %o2, 0
+ sub %i2, 0x4, %i2
+ EX_LD(LOAD(lduw, %i1, %i5))
+ EX_ST(STORE(stw, %i5, %i1 + %i3))
+ add %i1, 0x4, %i1
+1: cmp %i2, 0
be,pt %XCC, 85f
nop
ba,pt %xcc, 90f
sub %g1, 0x8, %g1
be,pn %icc, 2f
sub %g0, %g1, %g1
- sub %o2, %g1, %o2
+ sub %i2, %g1, %i2
1: subcc %g1, 1, %g1
- EX_LD(LOAD(ldub, %o1, %o5))
- EX_ST(STORE(stb, %o5, %o1 + %o3))
+ EX_LD(LOAD(ldub, %i1, %i5))
+ EX_ST(STORE(stb, %i5, %i1 + %i3))
bgu,pt %icc, 1b
- add %o1, 1, %o1
+ add %i1, 1, %i1
-2: add %o1, %o3, %o0
- andcc %o1, 0x7, %g1
+2: add %i1, %i3, %o0
+ andcc %i1, 0x7, %g1
bne,pt %icc, 8f
sll %g1, 3, %g1
- cmp %o2, 16
+ cmp %i2, 16
bgeu,pt %icc, 72b
nop
ba,a,pt %xcc, 73b
-8: mov 64, %o3
- andn %o1, 0x7, %o1
- EX_LD(LOAD(ldx, %o1, %g2))
- sub %o3, %g1, %o3
- andn %o2, 0x7, %o4
+8: mov 64, %i3
+ andn %i1, 0x7, %i1
+ EX_LD(LOAD(ldx, %i1, %g2))
+ sub %i3, %g1, %i3
+ andn %i2, 0x7, %i4
sllx %g2, %g1, %g2
-1: add %o1, 0x8, %o1
- EX_LD(LOAD(ldx, %o1, %g3))
- subcc %o4, 0x8, %o4
- srlx %g3, %o3, %o5
- or %o5, %g2, %o5
- EX_ST(STORE(stx, %o5, %o0))
+1: add %i1, 0x8, %i1
+ EX_LD(LOAD(ldx, %i1, %g3))
+ subcc %i4, 0x8, %i4
+ srlx %g3, %i3, %i5
+ or %i5, %g2, %i5
+ EX_ST(STORE(stx, %i5, %o0))
add %o0, 0x8, %o0
bgu,pt %icc, 1b
sllx %g3, %g1, %g2
srl %g1, 3, %g1
- andcc %o2, 0x7, %o2
+ andcc %i2, 0x7, %i2
be,pn %icc, 85f
- add %o1, %g1, %o1
+ add %i1, %g1, %i1
ba,pt %xcc, 90f
- sub %o0, %o1, %o3
+ sub %o0, %i1, %i3
.align 64
80: /* 0 < len <= 16 */
- andcc %o3, 0x3, %g0
+ andcc %i3, 0x3, %g0
bne,pn %XCC, 90f
- sub %o0, %o1, %o3
+ sub %o0, %i1, %i3
1:
- subcc %o2, 4, %o2
- EX_LD(LOAD(lduw, %o1, %g1))
- EX_ST(STORE(stw, %g1, %o1 + %o3))
+ subcc %i2, 4, %i2
+ EX_LD(LOAD(lduw, %i1, %g1))
+ EX_ST(STORE(stw, %g1, %i1 + %i3))
bgu,pt %XCC, 1b
- add %o1, 4, %o1
+ add %i1, 4, %i1
-85: retl
- mov EX_RETVAL(GLOBAL_SPARE), %o0
+85: ret
+ restore EX_RETVAL(%i0), %g0, %o0
.align 32
90:
- subcc %o2, 1, %o2
- EX_LD(LOAD(ldub, %o1, %g1))
- EX_ST(STORE(stb, %g1, %o1 + %o3))
+ subcc %i2, 1, %i2
+ EX_LD(LOAD(ldub, %i1, %g1))
+ EX_ST(STORE(stb, %g1, %i1 + %i3))
bgu,pt %XCC, 90b
- add %o1, 1, %o1
- retl
- mov EX_RETVAL(GLOBAL_SPARE), %o0
+ add %i1, 1, %i1
+ ret
+ restore EX_RETVAL(%i0), %g0, %o0
.size FUNC_NAME, .-FUNC_NAME
extern void copy_sc(union uml_pt_regs *regs, void *from);
-unsigned long to_irq_stack(int sig, unsigned long *mask_out);
+extern unsigned long to_irq_stack(unsigned long *mask_out);
unsigned long from_irq_stack(int nested);
#endif
static unsigned long pending_mask;
-unsigned long to_irq_stack(int sig, unsigned long *mask_out)
+unsigned long to_irq_stack(unsigned long *mask_out)
{
struct thread_info *ti;
unsigned long mask, old;
int nested;
- mask = xchg(&pending_mask, 1 << sig);
+ mask = xchg(&pending_mask, *mask_out);
if(mask != 0){
/* If any interrupts come in at this point, we want to
* make sure that their bits aren't lost by our
* and pending_mask contains a bit for each interrupt
* that came in.
*/
- old = 1 << sig;
+ old = *mask_out;
do {
old |= mask;
mask = xchg(&pending_mask, old);
task = cpu_tasks[ti->cpu].task;
tti = task_thread_info(task);
+
*ti = *tti;
ti->real_thread = tti;
task->stack = ti;
}
if(S_ISBLK(buf.ust_mode)){
- int fd, blocks;
+ int fd;
+ long blocks;
fd = os_open_file(file, of_read(OPENFLAGS()), 0);
if(fd < 0){
void handle_signal(int sig, struct sigcontext *sc)
{
- unsigned long pending = 0;
+ unsigned long pending = 1UL << sig;
do {
int nested, bail;
* have to return, and the upper handler will deal
* with this interrupt.
*/
- bail = to_irq_stack(sig, &pending);
+ bail = to_irq_stack(&pending);
if(bail)
return;
bool
default y
-config QUICKLIST
- bool
- default y
-
-config NR_QUICK
- int
- default 2
-
config ISA
bool
movq %rax,R8(%rsp)
.endm
+ .macro LOAD_ARGS32 offset
+ movl \offset(%rsp),%r11d
+ movl \offset+8(%rsp),%r10d
+ movl \offset+16(%rsp),%r9d
+ movl \offset+24(%rsp),%r8d
+ movl \offset+40(%rsp),%ecx
+ movl \offset+48(%rsp),%edx
+ movl \offset+56(%rsp),%esi
+ movl \offset+64(%rsp),%edi
+ movl \offset+72(%rsp),%eax
+ .endm
+
.macro CFI_STARTPROC32 simple
CFI_STARTPROC \simple
CFI_UNDEFINED r8
movq $-ENOSYS,RAX(%rsp) /* really needed? */
movq %rsp,%rdi /* &pt_regs -> arg1 */
call syscall_trace_enter
- LOAD_ARGS ARGOFFSET /* reload args from stack in case ptrace changed it */
+ LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */
RESTORE_REST
movl %ebp, %ebp
/* no need to do an access_ok check here because rbp has been
movq $-ENOSYS,RAX(%rsp) /* really needed? */
movq %rsp,%rdi /* &pt_regs -> arg1 */
call syscall_trace_enter
- LOAD_ARGS ARGOFFSET /* reload args from stack in case ptrace changed it */
+ LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */
RESTORE_REST
movl RSP-ARGOFFSET(%rsp), %r8d
/* no need to do an access_ok check here because r8 has been
movq $-ENOSYS,RAX(%rsp) /* really needed? */
movq %rsp,%rdi /* &pt_regs -> arg1 */
call syscall_trace_enter
- LOAD_ARGS ARGOFFSET /* reload args from stack in case ptrace changed it */
+ LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */
RESTORE_REST
jmp ia32_do_syscall
END(ia32_syscall)
testl $2, realmode_flags - wakeup_code
jz 1f
mov video_mode - wakeup_code, %ax
- call mode_seta
+ call mode_set
1:
movw $0xb800, %ax
#define VIDEO_FIRST_V7 0x0900
# Setting of user mode (AX=mode ID) => CF=success
+
+# For now, we only handle VESA modes (0x0200..0x03ff). To handle other
+# modes, we should probably compile in the video code from the boot
+# directory.
.code16
-mode_seta:
+mode_set:
movw %ax, %bx
-#if 0
- cmpb $0xff, %ah
- jz setalias
-
- testb $VIDEO_RECALC>>8, %ah
- jnz _setrec
-
- cmpb $VIDEO_FIRST_RESOLUTION>>8, %ah
- jnc setres
-
- cmpb $VIDEO_FIRST_SPECIAL>>8, %ah
- jz setspc
-
- cmpb $VIDEO_FIRST_V7>>8, %ah
- jz setv7
-#endif
-
- cmpb $VIDEO_FIRST_VESA>>8, %ah
- jnc check_vesaa
-#if 0
- orb %ah, %ah
- jz setmenu
-#endif
-
- decb %ah
-# jz setbios Add bios modes later
+ subb $VIDEO_FIRST_VESA>>8, %bh
+ cmpb $2, %bh
+ jb check_vesa
-setbada: clc
+setbad:
+ clc
ret
-check_vesaa:
- subb $VIDEO_FIRST_VESA>>8, %bh
+check_vesa:
orw $0x4000, %bx # Use linear frame buffer
movw $0x4f02, %ax # VESA BIOS mode set call
int $0x10
cmpw $0x004f, %ax # AL=4f if implemented
- jnz _setbada # AH=0 if OK
+ jnz setbad # AH=0 if OK
stc
ret
-_setbada: jmp setbada
-
wakeup_stack_begin: # Stack grows down
.org 0xff0
if (__get_cpu_var(cpu_idle_state))
__get_cpu_var(cpu_idle_state) = 0;
- check_pgt_cache();
rmb();
idle = pm_idle;
if (!idle)
{
unsigned long tmp;
- /* Some code in the 64bit emulation may not be 64bit clean.
- Don't take any chances. */
- if (test_tsk_thread_flag(child, TIF_IA32))
- value &= 0xffffffff;
switch (regno) {
case offsetof(struct user_regs_struct,fs):
if (value && (value & 3) != 3)
}
if (!cpus_empty(cpu_mask))
flush_tlb_others(cpu_mask, mm, FLUSH_ALL);
- check_pgt_cache();
+
preempt_enable();
}
EXPORT_SYMBOL(flush_tlb_mm);
if (unlikely(in_atomic() || !mm))
goto bad_area_nosemaphore;
+ /*
+ * User-mode registers count as a user access even for any
+ * potential system fault or CPU buglet.
+ */
+ if (user_mode_vm(regs))
+ error_code |= PF_USER;
+
again:
/* When running in the kernel we expect faults to occur only to
* addresses in user space. All other faults represent errors in the
-#define VDSO_TEXT_OFFSET 0x500
+#define VDSO_TEXT_OFFSET 0x600
{
enum dma_status status;
struct dma_async_tx_descriptor *iter;
+ struct dma_async_tx_descriptor *parent;
if (!tx)
return DMA_SUCCESS;
/* poll through the dependency chain, return when tx is complete */
do {
iter = tx;
- while (iter->cookie == -EBUSY)
- iter = iter->parent;
+
+ /* find the root of the unsubmitted dependency chain */
+ while (iter->cookie == -EBUSY) {
+ parent = iter->parent;
+ if (parent && parent->cookie == -EBUSY)
+ iter = iter->parent;
+ else
+ break;
+ }
status = dma_sync_wait(iter->chan, iter->cookie);
} while (status == DMA_IN_PROGRESS || (iter != tx));
.add = acpi_processor_add,
.remove = acpi_processor_remove,
.start = acpi_processor_start,
+ .suspend = acpi_processor_suspend,
+ .resume = acpi_processor_resume,
},
};
#endif
+/*
+ * Suspend / resume control
+ */
+static int acpi_idle_suspend;
+
+int acpi_processor_suspend(struct acpi_device * device, pm_message_t state)
+{
+ acpi_idle_suspend = 1;
+ return 0;
+}
+
+int acpi_processor_resume(struct acpi_device * device)
+{
+ acpi_idle_suspend = 0;
+ return 0;
+}
+
static void acpi_processor_idle(void)
{
struct acpi_processor *pr = NULL;
}
cx = pr->power.state;
- if (!cx) {
+ if (!cx || acpi_idle_suspend) {
if (pm_idle_save)
pm_idle_save();
else
-obj-y := poweroff.o wakeup.o
-obj-$(CONFIG_ACPI_SLEEP) += main.o
+obj-y := wakeup.o
+obj-y += main.o
obj-$(CONFIG_ACPI_SLEEP) += proc.o
EXTRA_CFLAGS += $(ACPI_CFLAGS)
#include <linux/dmi.h>
#include <linux/device.h>
#include <linux/suspend.h>
+
+#include <asm/io.h>
+
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
#include "sleep.h"
u8 sleep_states[ACPI_S_STATE_COUNT];
+#ifdef CONFIG_PM_SLEEP
static u32 acpi_target_sleep_state = ACPI_STATE_S0;
+#endif
+
+int acpi_sleep_prepare(u32 acpi_state)
+{
+#ifdef CONFIG_ACPI_SLEEP
+ /* do we have a wakeup address for S2 and S3? */
+ if (acpi_state == ACPI_STATE_S3) {
+ if (!acpi_wakeup_address) {
+ return -EFAULT;
+ }
+ acpi_set_firmware_waking_vector((acpi_physical_address)
+ virt_to_phys((void *)
+ acpi_wakeup_address));
+
+ }
+ ACPI_FLUSH_CPU_CACHE();
+ acpi_enable_wakeup_device_prep(acpi_state);
+#endif
+ acpi_gpe_sleep_prepare(acpi_state);
+ acpi_enter_sleep_state_prep(acpi_state);
+ return 0;
+}
#ifdef CONFIG_SUSPEND
static struct pm_ops acpi_pm_ops;
return -EINVAL;
}
+#ifdef CONFIG_PM_SLEEP
/**
* acpi_pm_device_sleep_state - return preferred power state of ACPI device
* in the system sleep state given by %acpi_target_sleep_state
*d_min_p = d_min;
return d_max;
}
+#endif
+
+static void acpi_power_off_prepare(void)
+{
+ /* Prepare to power off the system */
+ acpi_sleep_prepare(ACPI_STATE_S5);
+}
+
+static void acpi_power_off(void)
+{
+ /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
+ printk("%s called\n", __FUNCTION__);
+ local_irq_disable();
+ acpi_enter_sleep_state(ACPI_STATE_S5);
+}
int __init acpi_sleep_init(void)
{
if (acpi_disabled)
return 0;
+ sleep_states[ACPI_STATE_S0] = 1;
+ printk(KERN_INFO PREFIX "(supports S0");
+
#ifdef CONFIG_SUSPEND
- printk(KERN_INFO PREFIX "(supports");
- for (i = ACPI_STATE_S0; i < ACPI_STATE_S4; i++) {
+ for (i = ACPI_STATE_S1; i < ACPI_STATE_S4; i++) {
status = acpi_get_sleep_type_data(i, &type_a, &type_b);
if (ACPI_SUCCESS(status)) {
sleep_states[i] = 1;
printk(" S%d", i);
}
}
- printk(")\n");
pm_set_ops(&acpi_pm_ops);
#endif
if (ACPI_SUCCESS(status)) {
hibernation_set_ops(&acpi_hibernation_ops);
sleep_states[ACPI_STATE_S4] = 1;
+ printk(" S4");
}
-#else
- sleep_states[ACPI_STATE_S4] = 0;
#endif
-
+ status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
+ if (ACPI_SUCCESS(status)) {
+ sleep_states[ACPI_STATE_S5] = 1;
+ printk(" S5");
+ pm_power_off_prepare = acpi_power_off_prepare;
+ pm_power_off = acpi_power_off;
+ }
+ printk(")\n");
return 0;
}
+++ /dev/null
-/*
- * poweroff.c - ACPI handler for powering off the system.
- *
- * AKA S5, but it is independent of whether or not the kernel supports
- * any other sleep support in the system.
- *
- * Copyright (c) 2005 Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
- *
- * This file is released under the GPLv2.
- */
-
-#include <linux/pm.h>
-#include <linux/init.h>
-#include <acpi/acpi_bus.h>
-#include <linux/sysdev.h>
-#include <asm/io.h>
-#include "sleep.h"
-
-int acpi_sleep_prepare(u32 acpi_state)
-{
-#ifdef CONFIG_ACPI_SLEEP
- /* do we have a wakeup address for S2 and S3? */
- if (acpi_state == ACPI_STATE_S3) {
- if (!acpi_wakeup_address) {
- return -EFAULT;
- }
- acpi_set_firmware_waking_vector((acpi_physical_address)
- virt_to_phys((void *)
- acpi_wakeup_address));
-
- }
- ACPI_FLUSH_CPU_CACHE();
- acpi_enable_wakeup_device_prep(acpi_state);
-#endif
- acpi_gpe_sleep_prepare(acpi_state);
- acpi_enter_sleep_state_prep(acpi_state);
- return 0;
-}
-
-#ifdef CONFIG_PM
-
-static void acpi_power_off_prepare(void)
-{
- /* Prepare to power off the system */
- acpi_sleep_prepare(ACPI_STATE_S5);
-}
-
-static void acpi_power_off(void)
-{
- /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
- printk("%s called\n", __FUNCTION__);
- local_irq_disable();
- /* Some SMP machines only can poweroff in boot CPU */
- acpi_enter_sleep_state(ACPI_STATE_S5);
-}
-
-static int acpi_poweroff_init(void)
-{
- if (!acpi_disabled) {
- u8 type_a, type_b;
- acpi_status status;
-
- status =
- acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
- if (ACPI_SUCCESS(status)) {
- pm_power_off_prepare = acpi_power_off_prepare;
- pm_power_off = acpi_power_off;
- }
- }
- return 0;
-}
-
-late_initcall(acpi_poweroff_init);
-
-#endif /* CONFIG_PM */
arg0.integer.value = level;
status = acpi_evaluate_object(device->dev->handle, "_BCM", &args, NULL);
- printk(KERN_DEBUG "set_level status: %x\n", status);
return status;
}
static int acpi_video_bus_start_devices(struct acpi_video_bus *video)
{
- return acpi_video_bus_DOS(video, 1, 0);
+ return acpi_video_bus_DOS(video, 0, 0);
}
static int acpi_video_bus_stop_devices(struct acpi_video_bus *video)
/* ATI */
{ PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
- { PCI_VDEVICE(ATI, 0x4390), board_ahci_sb600 }, /* ATI SB700 IDE */
- { PCI_VDEVICE(ATI, 0x4391), board_ahci_sb600 }, /* ATI SB700 AHCI */
- { PCI_VDEVICE(ATI, 0x4392), board_ahci_sb600 }, /* ATI SB700 nraid5 */
- { PCI_VDEVICE(ATI, 0x4393), board_ahci_sb600 }, /* ATI SB700 raid5 */
+ { PCI_VDEVICE(ATI, 0x4390), board_ahci_sb600 }, /* ATI SB700/800 */
+ { PCI_VDEVICE(ATI, 0x4391), board_ahci_sb600 }, /* ATI SB700/800 */
+ { PCI_VDEVICE(ATI, 0x4392), board_ahci_sb600 }, /* ATI SB700/800 */
+ { PCI_VDEVICE(ATI, 0x4393), board_ahci_sb600 }, /* ATI SB700/800 */
+ { PCI_VDEVICE(ATI, 0x4394), board_ahci_sb600 }, /* ATI SB700/800 */
+ { PCI_VDEVICE(ATI, 0x4395), board_ahci_sb600 }, /* ATI SB700/800 */
/* VIA */
{ PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
static int piix_broken_suspend(void)
{
static struct dmi_system_id sysids[] = {
+ {
+ .ident = "TECRA M3",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TECRA M3"),
+ },
+ },
{
.ident = "TECRA M5",
.matches = {
{ "Maxtor 6L250S0", "BANC1G10", ATA_HORKAGE_NONCQ },
{ "Maxtor 6B200M0", "BANC1BM0", ATA_HORKAGE_NONCQ },
{ "Maxtor 6B200M0", "BANC1B10", ATA_HORKAGE_NONCQ },
+ { "Maxtor 7B250S0", "BANC1B70", ATA_HORKAGE_NONCQ, },
+ { "Maxtor 7B300S0", "BANC1B70", ATA_HORKAGE_NONCQ },
+ { "Maxtor 7V300F0", "VA111630", ATA_HORKAGE_NONCQ },
{ "HITACHI HDS7250SASUN500G 0621KTAWSD", "K2AOAJ0AHITACHI",
ATA_HORKAGE_NONCQ },
/* NCQ hard hangs device under heavier load, needs hard power cycle */
{ "WDC WD740ADFD-00NLR1", NULL, ATA_HORKAGE_NONCQ, },
{ "FUJITSU MHV2080BH", "00840028", ATA_HORKAGE_NONCQ, },
{ "ST9160821AS", "3.CLF", ATA_HORKAGE_NONCQ, },
+ { "ST3160812AS", "3.AD", ATA_HORKAGE_NONCQ, },
{ "SAMSUNG HD401LJ", "ZZ100-15", ATA_HORKAGE_NONCQ, },
/* devices which puke on READ_NATIVE_MAX */
dmactl = ioread8(ap->ioaddr.bmdma_addr + ATA_DMA_CMD);
iowrite8(dmactl | ATA_DMA_START, ap->ioaddr.bmdma_addr + ATA_DMA_CMD);
- /* Strictly, one may wish to issue a readb() here, to
+ /* Strictly, one may wish to issue an ioread8() here, to
* flush the mmio write. However, control also passes
* to the hardware at this point, and it will interrupt
* us when we are to resume control. So, in effect,
* is expected, so I think it is best to not add a readb()
* without first all the MMIO ATA cards/mobos.
* Or maybe I'm just being paranoid.
+ *
+ * FIXME: The posting of this write means I/O starts are
+ * unneccessarily delayed for MMIO
*/
}
data->cs0 = devm_ioremap(&pdev->dev, cs0->start, 0x1000);
data->cs1 = devm_ioremap(&pdev->dev, cs1->start, 0x1000);
+ if (!data->cs0 || !data->cs1)
+ return -ENOMEM;
+
irq = platform_get_irq(pdev, 0);
if (irq)
set_irq_type(irq, IRQT_RISING);
return -ENOMEM;
printk("BAR5:");
for(i = 0; i <= 0x0F; i++)
- printk("%02X:%02X ", i, readb(barp + i));
+ printk("%02X:%02X ", i, ioread8(barp + i));
printk("\n");
- devices = readl(barp + 0x0C);
+ devices = ioread32(barp + 0x0C);
pci_iounmap(pdev, barp);
if ((pdev->device == 0x6145) && (ap->port_no == 0) &&
int drive_pci = sis_old_port_base(adev);
u16 timing;
+ /* MWDMA 0-2 and UDMA 0-5 */
const u16 mwdma_bits[] = { 0x008, 0x302, 0x301 };
- const u16 udma_bits[] = { 0xF000, 0xD000, 0xB000, 0xA000, 0x9000};
+ const u16 udma_bits[] = { 0xF000, 0xD000, 0xB000, 0xA000, 0x9000, 0x8000 };
pci_read_config_word(pdev, drive_pci, &timing);
#define IS_GEN_IIE(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_IIE)
enum {
- MV_DMA_BOUNDARY = 0xffffffffU,
+ /* DMA boundary 0xffff is required by the s/g splitting
+ * we need on /length/ in mv_fill-sg().
+ */
+ MV_DMA_BOUNDARY = 0xffffU,
/* mask of register bits containing lower 32 bits
* of EDMA request queue DMA address
.queuecommand = ata_scsi_queuecmd,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
- .sg_tablesize = MV_MAX_SG_CT,
+ .sg_tablesize = MV_MAX_SG_CT / 2,
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
.emulated = ATA_SHT_EMULATED,
.use_clustering = 1,
.queuecommand = ata_scsi_queuecmd,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
- .sg_tablesize = MV_MAX_SG_CT,
+ .sg_tablesize = MV_MAX_SG_CT / 2,
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
.emulated = ATA_SHT_EMULATED,
.use_clustering = 1,
dma_addr_t addr = sg_dma_address(sg);
u32 sg_len = sg_dma_len(sg);
- mv_sg->addr = cpu_to_le32(addr & 0xffffffff);
- mv_sg->addr_hi = cpu_to_le32((addr >> 16) >> 16);
- mv_sg->flags_size = cpu_to_le32(sg_len & 0xffff);
+ while (sg_len) {
+ u32 offset = addr & 0xffff;
+ u32 len = sg_len;
+
+ if ((offset + sg_len > 0x10000))
+ len = 0x10000 - offset;
+
+ mv_sg->addr = cpu_to_le32(addr & 0xffffffff);
+ mv_sg->addr_hi = cpu_to_le32((addr >> 16) >> 16);
+ mv_sg->flags_size = cpu_to_le32(len);
- if (ata_sg_is_last(sg, qc))
- mv_sg->flags_size |= cpu_to_le32(EPRD_FLAG_END_OF_TBL);
+ sg_len -= len;
+ addr += len;
+
+ if (!sg_len && ata_sg_is_last(sg, qc))
+ mv_sg->flags_size |= cpu_to_le32(EPRD_FLAG_END_OF_TBL);
+
+ mv_sg++;
+ n_sg++;
+ }
- mv_sg++;
- n_sg++;
}
return n_sg;
u32 slot_stat, qc_active;
int rc;
+ /* If PCIX_IRQ_WOC, there's an inherent race window between
+ * clearing IRQ pending status and reading PORT_SLOT_STAT
+ * which may cause spurious interrupts afterwards. This is
+ * unavoidable and much better than losing interrupts which
+ * happens if IRQ pending is cleared after reading
+ * PORT_SLOT_STAT.
+ */
+ if (ap->flags & SIL24_FLAG_PCIX_IRQ_WOC)
+ writel(PORT_IRQ_COMPLETE, port + PORT_IRQ_STAT);
+
slot_stat = readl(port + PORT_SLOT_STAT);
if (unlikely(slot_stat & HOST_SSTAT_ATTN)) {
return;
}
- if (ap->flags & SIL24_FLAG_PCIX_IRQ_WOC)
- writel(PORT_IRQ_COMPLETE, port + PORT_IRQ_STAT);
-
qc_active = slot_stat & ~HOST_SSTAT_ATTN;
rc = ata_qc_complete_multiple(ap, qc_active, sil24_finish_qc);
if (rc > 0)
return;
}
- if (ata_ratelimit())
+ /* spurious interrupts are expected if PCIX_IRQ_WOC */
+ if (!(ap->flags & SIL24_FLAG_PCIX_IRQ_WOC) && ata_ratelimit())
ata_port_printk(ap, KERN_INFO, "spurious interrupt "
"(slot_stat 0x%x active_tag %d sactive 0x%x)\n",
slot_stat, ap->active_tag, ap->sactive);
/* let the kset specific function add its keys */
pos = data;
+ memset(envp, 0, sizeof(envp));
retval = kset->uevent_ops->uevent(kset, &dev->kobj,
envp, ARRAY_SIZE(envp),
pos, PAGE_SIZE);
static struct kobject * get_device_parent(struct device *dev,
struct device *parent)
{
- /* Set the parent to the class, not the parent device */
- /* this keeps sysfs from having a symlink to make old udevs happy */
- if (dev->class)
+ /*
+ * Set the parent to the class, not the parent device
+ * for topmost devices in class hierarchy.
+ * This keeps sysfs from having a symlink to make old
+ * udevs happy
+ */
+ if (dev->class && (!parent || parent->class != dev->class))
return &dev->class->subsys.kobj;
else if (parent)
return &parent->kobj;
goto out_subsys;
}
if (dev->parent) {
- error = sysfs_create_link(&dev->kobj, &dev->parent->kobj,
- "device");
- if (error)
- goto out_busid;
#ifdef CONFIG_SYSFS_DEPRECATED
{
- char * class_name = make_class_name(dev->class->name,
- &dev->kobj);
+ struct device *parent = dev->parent;
+ char *class_name;
+
+ /*
+ * In old sysfs stacked class devices had 'device'
+ * link pointing to real device instead of parent
+ */
+ while (parent->class && !parent->bus && parent->parent)
+ parent = parent->parent;
+
+ error = sysfs_create_link(&dev->kobj,
+ &parent->kobj,
+ "device");
+ if (error)
+ goto out_busid;
+
+ class_name = make_class_name(dev->class->name,
+ &dev->kobj);
if (class_name)
error = sysfs_create_link(&dev->parent->kobj,
&dev->kobj, class_name);
if (error)
goto out_device;
}
+#else
+ error = sysfs_create_link(&dev->kobj, &dev->parent->kobj,
+ "device");
+ if (error)
+ goto out_busid;
#endif
}
return 0;
#include <linux/genhd.h>
#include <linux/hdreg.h>
#include <linux/blkpg.h>
+#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/mm.h>
check_disk_change(ip->i_bdev);
return 0;
err_release:
+ if (CDROM_CAN(CDC_LOCK) && cdi->options & CDO_LOCK) {
+ cdi->ops->lock_door(cdi, 0);
+ cdinfo(CD_OPEN, "door unlocked.\n");
+ }
cdi->ops->release(cdi);
err:
cdi->use_count--;
ifdef GENERATE_KEYMAP
-$(obj)/defkeymap.c $(obj)/%.c: $(src)/%.map
+$(obj)/defkeymap.c: $(obj)/%.c: $(src)/%.map
loadkeys --mktable $< > $@.tmp
sed -e 's/^static *//' $@.tmp > $@
rm $@.tmp
#define I830_GMCH_MEM_MASK 0x1
#define I830_GMCH_MEM_64M 0x1
#define I830_GMCH_MEM_128M 0
-#define I830_GMCH_GMS_MASK 0xF0
+#define I830_GMCH_GMS_MASK 0x70
#define I830_GMCH_GMS_DISABLED 0x00
#define I830_GMCH_GMS_LOCAL 0x10
#define I830_GMCH_GMS_STOLEN_512 0x20
#define INTEL_I830_ERRSTS 0x92
/* Intel 855GM/852GM registers */
+#define I855_GMCH_GMS_MASK 0xF0
#define I855_GMCH_GMS_STOLEN_0M 0x0
#define I855_GMCH_GMS_STOLEN_1M (0x1 << 4)
#define I855_GMCH_GMS_STOLEN_4M (0x2 << 4)
break;
}
} else {
- /* G33's GTT stolen memory is separate from gfx data
- * stolen memory.
- */
- if (IS_G33)
- size = 0;
- switch (gmch_ctrl & I830_GMCH_GMS_MASK) {
+ switch (gmch_ctrl & I855_GMCH_GMS_MASK) {
case I855_GMCH_GMS_STOLEN_1M:
gtt_entries = MB(1) - KB(size);
break;
#define I915REG_INT_MASK_R 0x020a8
#define I915REG_INT_ENABLE_R 0x020a0
+#define I915REG_PIPEASTAT 0x70024
+#define I915REG_PIPEBSTAT 0x71024
+
+#define I915_VBLANK_INTERRUPT_ENABLE (1UL<<17)
+#define I915_VBLANK_CLEAR (1UL<<1)
+
#define SRX_INDEX 0x3c4
#define SRX_DATA 0x3c5
#define SR01 1
struct drm_device *dev = (struct drm_device *) arg;
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
u16 temp;
+ u32 pipea_stats, pipeb_stats;
+
+ pipea_stats = I915_READ(I915REG_PIPEASTAT);
+ pipeb_stats = I915_READ(I915REG_PIPEBSTAT);
temp = I915_READ16(I915REG_INT_IDENTITY_R);
return IRQ_NONE;
I915_WRITE16(I915REG_INT_IDENTITY_R, temp);
+ (void) I915_READ16(I915REG_INT_IDENTITY_R);
+ DRM_READMEMORYBARRIER();
dev_priv->sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
if (dev_priv->swaps_pending > 0)
drm_locked_tasklet(dev, i915_vblank_tasklet);
+ I915_WRITE(I915REG_PIPEASTAT,
+ pipea_stats|I915_VBLANK_INTERRUPT_ENABLE|
+ I915_VBLANK_CLEAR);
+ I915_WRITE(I915REG_PIPEBSTAT,
+ pipeb_stats|I915_VBLANK_INTERRUPT_ENABLE|
+ I915_VBLANK_CLEAR);
}
return IRQ_HANDLED;
static u32 hpet_nhpet, hpet_max_freq = HPET_USER_FREQ;
+/* This clocksource driver currently only works on ia64 */
+#ifdef CONFIG_IA64
static void __iomem *hpet_mctr;
static cycle_t read_hpet(void)
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
static struct clocksource *hpet_clocksource;
+#endif
/* A lock for concurrent access by app and isr hpet activity. */
static DEFINE_SPINLOCK(hpet_lock);
printk(KERN_DEBUG "%s: 0x%lx is busy\n",
__FUNCTION__, hdp->hd_phys_address);
iounmap(hdp->hd_address);
- return -EBUSY;
+ return AE_ALREADY_EXISTS;
}
} else if (res->type == ACPI_RESOURCE_TYPE_FIXED_MEMORY32) {
struct acpi_resource_fixed_memory32 *fixmem32;
fixmem32 = &res->data.fixed_memory32;
if (!fixmem32)
- return -EINVAL;
+ return AE_NO_MEMORY;
hdp->hd_phys_address = fixmem32->address;
hdp->hd_address = ioremap(fixmem32->address,
printk(KERN_DEBUG "%s: 0x%lx is busy\n",
__FUNCTION__, hdp->hd_phys_address);
iounmap(hdp->hd_address);
- return -EBUSY;
+ return AE_ALREADY_EXISTS;
}
} else if (res->type == ACPI_RESOURCE_TYPE_EXTENDED_IRQ) {
struct acpi_resource_extended_irq *irqp;
static struct pci_device_id ipmi_pci_devices[] = {
{ PCI_DEVICE(PCI_HP_VENDOR_ID, PCI_MMC_DEVICE_ID) },
- { PCI_DEVICE_CLASS(PCI_ERMC_CLASSCODE, PCI_ERMC_CLASSCODE_MASK) }
+ { PCI_DEVICE_CLASS(PCI_ERMC_CLASSCODE, PCI_ERMC_CLASSCODE_MASK) },
+ { 0, }
};
MODULE_DEVICE_TABLE(pci, ipmi_pci_devices);
/*
* Page types allocated by the device.
*/
-enum {
+enum mspec_page_type {
MSPEC_FETCHOP = 1,
MSPEC_CACHED,
MSPEC_UNCACHED
* One of these structures is allocated when an mspec region is mmaped. The
* structure is pointed to by the vma->vm_private_data field in the vma struct.
* This structure is used to record the addresses of the mspec pages.
+ * This structure is shared by all vma's that are split off from the
+ * original vma when split_vma()'s are done.
+ *
+ * The refcnt is incremented atomically because mm->mmap_sem does not
+ * protect in fork case where multiple tasks share the vma_data.
*/
struct vma_data {
atomic_t refcnt; /* Number of vmas sharing the data. */
- spinlock_t lock; /* Serialize access to the vma. */
+ spinlock_t lock; /* Serialize access to this structure. */
int count; /* Number of pages allocated. */
- int type; /* Type of pages allocated. */
+ enum mspec_page_type type; /* Type of pages allocated. */
+ int flags; /* See VMD_xxx below. */
+ unsigned long vm_start; /* Original (unsplit) base. */
+ unsigned long vm_end; /* Original (unsplit) end. */
unsigned long maddr[0]; /* Array of MSPEC addresses. */
};
+#define VMD_VMALLOCED 0x1 /* vmalloc'd rather than kmalloc'd */
+
/* used on shub2 to clear FOP cache in the HUB */
static unsigned long scratch_page[MAX_NUMNODES];
#define SH2_AMO_CACHE_ENTRIES 4
* mspec_open
*
* Called when a device mapping is created by a means other than mmap
- * (via fork, etc.). Increments the reference count on the underlying
- * mspec data so it is not freed prematurely.
+ * (via fork, munmap, etc.). Increments the reference count on the
+ * underlying mspec data so it is not freed prematurely.
*/
static void
mspec_open(struct vm_area_struct *vma)
* mspec_close
*
* Called when unmapping a device mapping. Frees all mspec pages
- * belonging to the vma.
+ * belonging to all the vma's sharing this vma_data structure.
*/
static void
mspec_close(struct vm_area_struct *vma)
{
struct vma_data *vdata;
- int i, pages, result, vdata_size;
+ int index, last_index;
+ unsigned long my_page;
vdata = vma->vm_private_data;
+
if (!atomic_dec_and_test(&vdata->refcnt))
return;
- pages = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
- vdata_size = sizeof(struct vma_data) + pages * sizeof(long);
- for (i = 0; i < pages; i++) {
- if (vdata->maddr[i] == 0)
+ last_index = (vdata->vm_end - vdata->vm_start) >> PAGE_SHIFT;
+ for (index = 0; index < last_index; index++) {
+ if (vdata->maddr[index] == 0)
continue;
/*
* Clear the page before sticking it back
* into the pool.
*/
- result = mspec_zero_block(vdata->maddr[i], PAGE_SIZE);
- if (!result)
- uncached_free_page(vdata->maddr[i]);
+ my_page = vdata->maddr[index];
+ vdata->maddr[index] = 0;
+ if (!mspec_zero_block(my_page, PAGE_SIZE))
+ uncached_free_page(my_page);
else
printk(KERN_WARNING "mspec_close(): "
- "failed to zero page %i\n",
- result);
+ "failed to zero page %ld\n", my_page);
}
- if (vdata_size <= PAGE_SIZE)
- kfree(vdata);
- else
+ if (vdata->flags & VMD_VMALLOCED)
vfree(vdata);
+ else
+ kfree(vdata);
}
-
/*
* mspec_nopfn
*
int index;
struct vma_data *vdata = vma->vm_private_data;
- index = (address - vma->vm_start) >> PAGE_SHIFT;
+ BUG_ON(address < vdata->vm_start || address >= vdata->vm_end);
+ index = (address - vdata->vm_start) >> PAGE_SHIFT;
maddr = (volatile unsigned long) vdata->maddr[index];
if (maddr == 0) {
maddr = uncached_alloc_page(numa_node_id());
* underlying pages.
*/
static int
-mspec_mmap(struct file *file, struct vm_area_struct *vma, int type)
+mspec_mmap(struct file *file, struct vm_area_struct *vma,
+ enum mspec_page_type type)
{
struct vma_data *vdata;
- int pages, vdata_size;
+ int pages, vdata_size, flags = 0;
if (vma->vm_pgoff != 0)
return -EINVAL;
vdata_size = sizeof(struct vma_data) + pages * sizeof(long);
if (vdata_size <= PAGE_SIZE)
vdata = kmalloc(vdata_size, GFP_KERNEL);
- else
+ else {
vdata = vmalloc(vdata_size);
+ flags = VMD_VMALLOCED;
+ }
if (!vdata)
return -ENOMEM;
memset(vdata, 0, vdata_size);
+ vdata->vm_start = vma->vm_start;
+ vdata->vm_end = vma->vm_end;
+ vdata->flags = flags;
vdata->type = type;
spin_lock_init(&vdata->lock);
vdata->refcnt = ATOMIC_INIT(1);
* As close as possible to RFC 793, which
* suggests using a 250 kHz clock.
* Further reading shows this assumes 2 Mb/s networks.
- * For 10 Gb/s Ethernet, a 1 GHz clock is appropriate.
- * That's funny, Linux has one built in! Use it!
- * (Networks are faster now - should this be increased?)
+ * For 10 Mb/s Ethernet, a 1 MHz clock is appropriate.
+ * For 10 Gb/s Ethernet, a 1 GHz clock should be ok, but
+ * we also need to limit the resolution so that the u32 seq
+ * overlaps less than one time per MSL (2 minutes).
+ * Choosing a clock of 64 ns period is OK. (period of 274 s)
*/
- seq += ktime_get_real().tv64;
+ seq += ktime_get_real().tv64 >> 6;
#if 0
printk("init_seq(%lx, %lx, %d, %d) = %d\n",
saddr, daddr, sport, dport, seq);
/*
* Switching-from response
*/
+ acquire_console_sem();
if (vc->vt_newvt >= 0) {
if (arg == 0)
/*
* complete the switch.
*/
int newvt;
- acquire_console_sem();
newvt = vc->vt_newvt;
vc->vt_newvt = -1;
i = vc_allocate(newvt);
* other console switches..
*/
complete_change_console(vc_cons[newvt].d);
- release_console_sem();
}
}
/*
* If it's just an ACK, ignore it
*/
- if (arg != VT_ACKACQ)
+ if (arg != VT_ACKACQ) {
+ release_console_sem();
return -EINVAL;
+ }
}
+ release_console_sem();
return 0;
/*
* Sleeps until a vt is activated, or the task is interrupted. Returns
- * 0 if activation, -EINTR if interrupted.
+ * 0 if activation, -EINTR if interrupted by a signal handler.
*/
int vt_waitactive(int vt)
{
break;
}
release_console_sem();
- retval = -EINTR;
+ retval = -ERESTARTNOHAND;
if (signal_pending(current))
break;
schedule();
/*
* Send the signal as privileged - kill_pid() will
* tell us if the process has gone or something else
- * is awry
+ * is awry.
+ *
+ * We need to set vt_newvt *before* sending the signal or we
+ * have a race.
*/
+ vc->vt_newvt = new_vc->vc_num;
if (kill_pid(vc->vt_pid, vc->vt_mode.relsig, 1) == 0) {
/*
* It worked. Mark the vt to switch to and
* return. The process needs to send us a
* VT_RELDISP ioctl to complete the switch.
*/
- vc->vt_newvt = new_vc->vc_num;
return;
}
This is the "Juju" FireWire stack, a new alternative implementation
designed for robustness and simplicity. You can build either this
stack, or the classic stack (the ieee1394 driver, ohci1394 etc.)
- or both.
+ or both. Please read http://wiki.linux1394.org/JujuMigration before
+ you enable the new stack.
To compile this driver as a module, say M here: the module will be
called firewire-core. It functionally replaces ieee1394, raw1394,
*/
static const struct drive_list_entry hpa_list[] = {
{ "ST340823A", NULL },
+ { "ST320413A", NULL },
{ NULL, NULL }
};
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{ PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_IPID2_ATA,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ {},
};
static struct pci_driver pmac_ide_pci_driver = {
{
struct hd_driveid *id = drive->id;
ide_hwif_t *hwif = HWIF(drive);
- pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)hwif->hwif_data;
int enable = 1;
- int map;
drive->using_dma = 0;
if (drive->media == ide_floppy)
unregister_chrdev_region(IEEE1394_CORE_DEV, 256);
}
-fs_initcall(ieee1394_init); /* same as ohci1394 */
+module_init(ieee1394_init);
module_exit(ieee1394_cleanup);
/* Exported symbols */
return pci_register_driver(&ohci1394_pci_driver);
}
-/* Register before most other device drivers.
- * Useful for remote debugging via physical DMA, e.g. using firescope. */
-fs_initcall(ohci1394_init);
+module_init(ohci1394_init);
module_exit(ohci1394_cleanup);
dseg->qkey = cpu_to_be32(wr->wr.ud.remote_qkey);
}
-static void set_data_seg(struct mlx4_wqe_data_seg *dseg,
- struct ib_sge *sg)
+static void set_mlx_icrc_seg(void *dseg)
+{
+ u32 *t = dseg;
+ struct mlx4_wqe_inline_seg *iseg = dseg;
+
+ t[1] = 0;
+
+ /*
+ * Need a barrier here before writing the byte_count field to
+ * make sure that all the data is visible before the
+ * byte_count field is set. Otherwise, if the segment begins
+ * a new cacheline, the HCA prefetcher could grab the 64-byte
+ * chunk and get a valid (!= * 0xffffffff) byte count but
+ * stale data, and end up sending the wrong data.
+ */
+ wmb();
+
+ iseg->byte_count = cpu_to_be32((1 << 31) | 4);
+}
+
+static void set_data_seg(struct mlx4_wqe_data_seg *dseg, struct ib_sge *sg)
{
- dseg->byte_count = cpu_to_be32(sg->length);
dseg->lkey = cpu_to_be32(sg->lkey);
dseg->addr = cpu_to_be64(sg->addr);
+
+ /*
+ * Need a barrier here before writing the byte_count field to
+ * make sure that all the data is visible before the
+ * byte_count field is set. Otherwise, if the segment begins
+ * a new cacheline, the HCA prefetcher could grab the 64-byte
+ * chunk and get a valid (!= * 0xffffffff) byte count but
+ * stale data, and end up sending the wrong data.
+ */
+ wmb();
+
+ dseg->byte_count = cpu_to_be32(sg->length);
}
int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
struct mlx4_ib_qp *qp = to_mqp(ibqp);
void *wqe;
struct mlx4_wqe_ctrl_seg *ctrl;
+ struct mlx4_wqe_data_seg *dseg;
unsigned long flags;
int nreq;
int err = 0;
break;
}
- for (i = 0; i < wr->num_sge; ++i) {
- set_data_seg(wqe, wr->sg_list + i);
+ /*
+ * Write data segments in reverse order, so as to
+ * overwrite cacheline stamp last within each
+ * cacheline. This avoids issues with WQE
+ * prefetching.
+ */
- wqe += sizeof (struct mlx4_wqe_data_seg);
- size += sizeof (struct mlx4_wqe_data_seg) / 16;
- }
+ dseg = wqe;
+ dseg += wr->num_sge - 1;
+ size += wr->num_sge * (sizeof (struct mlx4_wqe_data_seg) / 16);
/* Add one more inline data segment for ICRC for MLX sends */
- if (qp->ibqp.qp_type == IB_QPT_SMI || qp->ibqp.qp_type == IB_QPT_GSI) {
- ((struct mlx4_wqe_inline_seg *) wqe)->byte_count =
- cpu_to_be32((1 << 31) | 4);
- ((u32 *) wqe)[1] = 0;
- wqe += sizeof (struct mlx4_wqe_data_seg);
+ if (unlikely(qp->ibqp.qp_type == IB_QPT_SMI ||
+ qp->ibqp.qp_type == IB_QPT_GSI)) {
+ set_mlx_icrc_seg(dseg + 1);
size += sizeof (struct mlx4_wqe_data_seg) / 16;
}
+ for (i = wr->num_sge - 1; i >= 0; --i, --dseg)
+ set_data_seg(dseg, wr->sg_list + i);
+
ctrl->fence_size = (wr->send_flags & IB_SEND_FENCE ?
MLX4_WQE_CTRL_FENCE : 0) | size;
config JOYSTICK_XPAD_LEDS
bool "LED Support for Xbox360 controller 'BigX' LED"
- depends on LEDS_CLASS && JOYSTICK_XPAD
+ depends on JOYSTICK_XPAD && (LEDS_CLASS=y || LEDS_CLASS=JOYSTICK_XPAD)
---help---
This option enables support for the LED which surrounds the Big X on
XBox 360 controller.
{
int x, y, x_z, y_z, x_f, y_f;
int retval, i, j;
+ int key;
struct atp *dev = urb->context;
switch (urb->status) {
ATP_XFACT, &x_z, &x_f);
y = atp_calculate_abs(dev->xy_acc + ATP_XSENSORS, ATP_YSENSORS,
ATP_YFACT, &y_z, &y_f);
+ key = dev->data[dev->datalen - 1] & 1;
if (x && y) {
if (dev->x_old != -1) {
the first touch unless reinitialised. Do so if it's been
idle for a while in order to avoid waking the kernel up
several hundred times a second */
- if (atp_is_geyser_3(dev)) {
+ if (!key && atp_is_geyser_3(dev)) {
dev->idlecount++;
if (dev->idlecount == 10) {
dev->valid = 0;
}
}
- input_report_key(dev->input, BTN_LEFT, dev->data[dev->datalen - 1] & 1);
+ input_report_key(dev->input, BTN_LEFT, key);
input_sync(dev->input);
exit:
if (count > dev->drv[drvidx]->stavail)
count = dev->drv[drvidx]->stavail;
len = dev->drv[drvidx]->interface->readstat(buf, count,
- drvidx, isdn_minor2chan(minor));
+ drvidx, isdn_minor2chan(minor - ISDN_MINOR_CTRL));
if (len < 0) {
retval = len;
goto out;
*/
if (dev->drv[drvidx]->interface->writecmd)
retval = dev->drv[drvidx]->interface->
- writecmd(buf, count, drvidx, isdn_minor2chan(minor));
+ writecmd(buf, count, drvidx,
+ isdn_minor2chan(minor - ISDN_MINOR_CTRL));
else
retval = count;
goto out;
depends on X86
default y
---help---
- Say Y here to get to see options for virtualization guest drivers.
+ Say Y here to get to see options for using your Linux host to run other
+ operating systems inside virtual machines (guests).
This option alone does not add any kernel code.
If you say N, all options in this submenu will be skipped and disabled.
jmp lguest_init
/*G:055 We create a macro which puts the assembler code between lgstart_ and
- * lgend_ markers. These templates end up in the .init.text section, so they
- * are discarded after boot. */
+ * lgend_ markers. These templates are put in the .text section: they can't be
+ * discarded after boot as we may need to patch modules, too. */
+.text
#define LGUEST_PATCH(name, insns...) \
lgstart_##name: insns; lgend_##name:; \
.globl lgstart_##name; .globl lgend_##name
LGUEST_PATCH(pushf, movl lguest_data+LGUEST_DATA_irq_enabled, %eax)
/*:*/
-.text
/* These demark the EIP range where host should never deliver interrupts. */
.global lguest_noirq_start
.global lguest_noirq_end
struct stripe_head *sh = stripe_head_ref;
struct bio *return_bi = NULL;
raid5_conf_t *conf = sh->raid_conf;
- int i, more_to_read = 0;
+ int i;
pr_debug("%s: stripe %llu\n", __FUNCTION__,
(unsigned long long)sh->sector);
/* clear completed biofills */
for (i = sh->disks; i--; ) {
struct r5dev *dev = &sh->dev[i];
- /* check if this stripe has new incoming reads */
- if (dev->toread)
- more_to_read++;
/* acknowledge completion of a biofill operation */
- /* and check if we need to reply to a read request
- */
- if (test_bit(R5_Wantfill, &dev->flags) && !dev->toread) {
+ /* and check if we need to reply to a read request,
+ * new R5_Wantfill requests are held off until
+ * !test_bit(STRIPE_OP_BIOFILL, &sh->ops.pending)
+ */
+ if (test_and_clear_bit(R5_Wantfill, &dev->flags)) {
struct bio *rbi, *rbi2;
- clear_bit(R5_Wantfill, &dev->flags);
/* The access to dev->read is outside of the
* spin_lock_irq(&conf->device_lock), but is protected
return_io(return_bi);
- if (more_to_read)
- set_bit(STRIPE_HANDLE, &sh->state);
+ set_bit(STRIPE_HANDLE, &sh->state);
release_stripe(sh);
}
ivtv_yuv_close(itv);
}
if (s->type == IVTV_DEC_STREAM_TYPE_YUV && itv->output_mode == OUT_YUV)
- itv->output_mode = OUT_NONE;
+ itv->output_mode = OUT_NONE;
+ else if (s->type == IVTV_DEC_STREAM_TYPE_YUV && itv->output_mode == OUT_UDMA_YUV)
+ itv->output_mode = OUT_NONE;
else if (s->type == IVTV_DEC_STREAM_TYPE_MPG && itv->output_mode == OUT_MPG)
- itv->output_mode = OUT_NONE;
+ itv->output_mode = OUT_NONE;
itv->speed = 0;
clear_bit(IVTV_F_I_DEC_PAUSED, &itv->i_flags);
{ USB_DEVICE(0x2304, 0x0301), .driver_info=PINNA_LINX_VD_IN_CAB_PAL },
{ USB_DEVICE(0x2304, 0x0419), .driver_info=PINNA_PCTV_BUNGEE_PAL_FM },
{ USB_DEVICE(0x2400, 0x4200), .driver_info=HPG_WINTV },
+ { }, /* terminate list */
};
MODULE_DEVICE_TABLE (usb, usbvision_table);
.ioctl = video_ioctl2,
.llseek = no_llseek,
/* .poll = video_poll, */
- .mmap = usbvision_v4l2_mmap,
.compat_ioctl = v4l_compat_ioctl32,
};
static struct video_device usbvision_video_template = {
.vidioc_s_input = vidioc_s_input,
.vidioc_queryctrl = vidioc_queryctrl,
.vidioc_g_audio = vidioc_g_audio,
- .vidioc_g_audio = vidioc_s_audio,
+ .vidioc_s_audio = vidioc_s_audio,
.vidioc_g_ctrl = vidioc_g_ctrl,
.vidioc_s_ctrl = vidioc_s_ctrl,
.vidioc_streamon = vidioc_streamon,
.vidioc_s_input = vidioc_s_input,
.vidioc_queryctrl = vidioc_queryctrl,
.vidioc_g_audio = vidioc_g_audio,
- .vidioc_g_audio = vidioc_s_audio,
+ .vidioc_s_audio = vidioc_s_audio,
.vidioc_g_ctrl = vidioc_g_ctrl,
.vidioc_s_ctrl = vidioc_s_ctrl,
.vidioc_g_tuner = vidioc_g_tuner,
}
static struct pci_device_id cafe_nand_tbl[] = {
- { 0x11ab, 0x4100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MEMORY_FLASH << 8, 0xFFFF0 }
+ { 0x11ab, 0x4100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MEMORY_FLASH << 8, 0xFFFF0 },
+ { 0, }
};
MODULE_DEVICE_TABLE(pci, cafe_nand_tbl);
#define DRV_MODULE_NAME "bnx2"
#define PFX DRV_MODULE_NAME ": "
-#define DRV_MODULE_VERSION "1.6.4"
-#define DRV_MODULE_RELDATE "August 3, 2007"
+#define DRV_MODULE_VERSION "1.6.5"
+#define DRV_MODULE_RELDATE "September 20, 2007"
#define RUN_AT(x) (jiffies + (x))
} else if (CHIP_NUM(bp) == CHIP_NUM_5706 ||
CHIP_NUM(bp) == CHIP_NUM_5708)
bp->phy_flags |= PHY_CRC_FIX_FLAG;
- else if (CHIP_ID(bp) == CHIP_ID_5709_A0)
+ else if (CHIP_ID(bp) == CHIP_ID_5709_A0 ||
+ CHIP_ID(bp) == CHIP_ID_5709_A1)
bp->phy_flags |= PHY_DIS_EARLY_DAC_FLAG;
if ((CHIP_ID(bp) == CHIP_ID_5708_A0) ||
case E1000_DEV_ID_82571EB_QUAD_COPPER:
case E1000_DEV_ID_82571EB_QUAD_FIBER:
case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE:
+ case E1000_DEV_ID_82571PT_QUAD_COPPER:
case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
/* quad port adapters only support WoL on port A */
if (!adapter->quad_port_a) {
case E1000_DEV_ID_82571EB_SERDES_DUAL:
case E1000_DEV_ID_82571EB_SERDES_QUAD:
case E1000_DEV_ID_82571EB_QUAD_COPPER:
+ case E1000_DEV_ID_82571PT_QUAD_COPPER:
case E1000_DEV_ID_82571EB_QUAD_FIBER:
case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE:
hw->mac_type = e1000_82571;
#define E1000_DEV_ID_82571EB_FIBER 0x105F
#define E1000_DEV_ID_82571EB_SERDES 0x1060
#define E1000_DEV_ID_82571EB_QUAD_COPPER 0x10A4
+#define E1000_DEV_ID_82571PT_QUAD_COPPER 0x10D5
#define E1000_DEV_ID_82571EB_QUAD_FIBER 0x10A5
#define E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE 0x10BC
#define E1000_DEV_ID_82571EB_SERDES_DUAL 0x10D9
INTEL_E1000_ETHERNET_DEVICE(0x10BC),
INTEL_E1000_ETHERNET_DEVICE(0x10C4),
INTEL_E1000_ETHERNET_DEVICE(0x10C5),
+ INTEL_E1000_ETHERNET_DEVICE(0x10D5),
INTEL_E1000_ETHERNET_DEVICE(0x10D9),
INTEL_E1000_ETHERNET_DEVICE(0x10DA),
/* required last entry */
case E1000_DEV_ID_82571EB_QUAD_COPPER:
case E1000_DEV_ID_82571EB_QUAD_FIBER:
case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE:
+ case E1000_DEV_ID_82571PT_QUAD_COPPER:
/* if quad port adapter, disable WoL on all but port A */
if (global_quad_port_a != 0)
adapter->eeprom_wol = 0;
}
/* PHY status changed */
- if (eth_int_cause_ext & ETH_INT_CAUSE_PHY) {
+ if (eth_int_cause_ext & (ETH_INT_CAUSE_PHY | ETH_INT_CAUSE_STATE)) {
struct ethtool_cmd cmd;
if (mii_link_ok(&mp->mii)) {
#endif
dev->watchdog_timeo = 2 * HZ;
- dev->tx_queue_len = mp->tx_ring_size;
dev->base_addr = 0;
dev->change_mtu = mv643xx_eth_change_mtu;
dev->do_ioctl = mv643xx_eth_do_ioctl;
.get_stats_count = mv643xx_get_stats_count,
.get_ethtool_stats = mv643xx_get_ethtool_stats,
.get_strings = mv643xx_get_strings,
- .get_stats_count = mv643xx_get_stats_count,
- .get_ethtool_stats = mv643xx_get_ethtool_stats,
.nway_reset = mv643xx_eth_nway_restart,
};
#define ETH_INT_CAUSE_TX_ERROR (ETH_TX_QUEUES_ENABLED << 8)
#define ETH_INT_CAUSE_TX (ETH_INT_CAUSE_TX_DONE | ETH_INT_CAUSE_TX_ERROR)
#define ETH_INT_CAUSE_PHY 0x00010000
-#define ETH_INT_UNMASK_ALL_EXT (ETH_INT_CAUSE_TX | ETH_INT_CAUSE_PHY)
+#define ETH_INT_CAUSE_STATE 0x00100000
+#define ETH_INT_UNMASK_ALL_EXT (ETH_INT_CAUSE_TX | ETH_INT_CAUSE_PHY | \
+ ETH_INT_CAUSE_STATE)
#define ETH_INT_MASK_ALL 0x00000000
#define ETH_INT_MASK_ALL_EXT 0x00000000
}
#define PCI_DEVICE_ID_MYRICOM_MYRI10GE_Z8E 0x0008
+#define PCI_DEVICE_ID_MYRICOM_MYRI10GE_Z8E_9 0x0009
static struct pci_device_id myri10ge_pci_tbl[] = {
{PCI_DEVICE(PCI_VENDOR_ID_MYRICOM, PCI_DEVICE_ID_MYRICOM_MYRI10GE_Z8E)},
+ {PCI_DEVICE
+ (PCI_VENDOR_ID_MYRICOM, PCI_DEVICE_ID_MYRICOM_MYRI10GE_Z8E_9)},
{0},
};
spinlock_t lock;
};
-static const char *if_names[] = { "auto", "10base2", "10baseT", "AUI" };
+static const char *if_names[] = { "auto", "10baseT", "10base2", "AUI" };
/*====================================================================*/
return 0;
}
+EXPORT_SYMBOL(phy_mii_ioctl);
/**
* phy_start_aneg - start auto-negotiation for this PHY device
* Key Derivation, from RFC 3078, RFC 3079.
* Equivalent to Get_Key() for MS-CHAP as described in RFC 3079.
*/
-static void get_new_key_from_sha(struct ppp_mppe_state * state, unsigned char *InterimKey)
+static void get_new_key_from_sha(struct ppp_mppe_state * state)
{
struct hash_desc desc;
struct scatterlist sg[4];
desc.flags = 0;
crypto_hash_digest(&desc, sg, nbytes, state->sha1_digest);
-
- memcpy(InterimKey, state->sha1_digest, state->keylen);
}
/*
*/
static void mppe_rekey(struct ppp_mppe_state * state, int initial_key)
{
- unsigned char InterimKey[MPPE_MAX_KEY_LEN];
struct scatterlist sg_in[1], sg_out[1];
struct blkcipher_desc desc = { .tfm = state->arc4 };
- get_new_key_from_sha(state, InterimKey);
+ get_new_key_from_sha(state);
if (!initial_key) {
- crypto_blkcipher_setkey(state->arc4, InterimKey, state->keylen);
- setup_sg(sg_in, InterimKey, state->keylen);
+ crypto_blkcipher_setkey(state->arc4, state->sha1_digest,
+ state->keylen);
+ setup_sg(sg_in, state->sha1_digest, state->keylen);
setup_sg(sg_out, state->session_key, state->keylen);
if (crypto_blkcipher_encrypt(&desc, sg_out, sg_in,
state->keylen) != 0) {
printk(KERN_WARNING "mppe_rekey: cipher_encrypt failed\n");
}
} else {
- memcpy(state->session_key, InterimKey, state->keylen);
+ memcpy(state->session_key, state->sha1_digest, state->keylen);
}
if (state->keylen == 8) {
/* See RFC 3078 */
dev->hard_header(skb, dev, ETH_P_PPP_SES,
po->pppoe_pa.remote, NULL, data_len);
- if (dev_queue_xmit(skb) < 0)
- goto abort;
+ dev_queue_xmit(skb);
return 1;
u16 hdrflags;
u16 tunnel_id, session_id;
int length;
- struct udphdr *uh;
+ int offset;
tunnel = pppol2tp_sock_to_tunnel(sock);
if (tunnel == NULL)
goto error;
+ /* UDP always verifies the packet length. */
+ __skb_pull(skb, sizeof(struct udphdr));
+
/* Short packet? */
- if (skb->len < sizeof(struct udphdr)) {
+ if (!pskb_may_pull(skb, 12)) {
PRINTK(tunnel->debug, PPPOL2TP_MSG_DATA, KERN_INFO,
"%s: recv short packet (len=%d)\n", tunnel->name, skb->len);
goto error;
}
/* Point to L2TP header */
- ptr = skb->data + sizeof(struct udphdr);
+ ptr = skb->data;
/* Get L2TP header flags */
hdrflags = ntohs(*(__be16*)ptr);
/* Trace packet contents, if enabled */
if (tunnel->debug & PPPOL2TP_MSG_DATA) {
+ length = min(16u, skb->len);
+ if (!pskb_may_pull(skb, length))
+ goto error;
+
printk(KERN_DEBUG "%s: recv: ", tunnel->name);
- for (length = 0; length < 16; length++)
- printk(" %02X", ptr[length]);
+ offset = 0;
+ do {
+ printk(" %02X", ptr[offset]);
+ } while (++offset < length);
+
printk("\n");
}
/* Get length of L2TP packet */
- uh = (struct udphdr *) skb_transport_header(skb);
- length = ntohs(uh->len) - sizeof(struct udphdr);
-
- /* Too short? */
- if (length < 12) {
- PRINTK(tunnel->debug, PPPOL2TP_MSG_DATA, KERN_INFO,
- "%s: recv short L2TP packet (len=%d)\n", tunnel->name, length);
- goto error;
- }
+ length = skb->len;
/* If type is control packet, it is handled by userspace. */
if (hdrflags & L2TP_HDRFLAG_T) {
"%s: recv data has no seq numbers when required. "
"Discarding\n", session->name);
session->stats.rx_seq_discards++;
- session->stats.rx_errors++;
goto discard;
}
"%s: recv data has no seq numbers when required. "
"Discarding\n", session->name);
session->stats.rx_seq_discards++;
- session->stats.rx_errors++;
goto discard;
}
}
/* If offset bit set, skip it. */
- if (hdrflags & L2TP_HDRFLAG_O)
- ptr += 2 + ntohs(*(__be16 *) ptr);
+ if (hdrflags & L2TP_HDRFLAG_O) {
+ offset = ntohs(*(__be16 *)ptr);
+ skb->transport_header += 2 + offset;
+ if (!pskb_may_pull(skb, skb_transport_offset(skb) + 2))
+ goto discard;
+ }
- skb_pull(skb, ptr - skb->data);
+ __skb_pull(skb, skb_transport_offset(skb));
/* Skip PPP header, if present. In testing, Microsoft L2TP clients
* don't send the PPP header (PPP header compression enabled), but
*/
if (PPPOL2TP_SKB_CB(skb)->ns != session->nr) {
session->stats.rx_seq_discards++;
- session->stats.rx_errors++;
PRINTK(session->debug, PPPOL2TP_MSG_SEQ, KERN_DEBUG,
"%s: oos pkt %hu len %d discarded, "
"waiting for %hu, reorder_q_len=%d\n",
return 0;
discard:
+ session->stats.rx_errors++;
kfree_skb(skb);
sock_put(session->sock);
int data_len = skb->len;
struct inet_sock *inet;
__wsum csum = 0;
- struct sk_buff *skb2 = NULL;
struct udphdr *uh;
unsigned int len;
*/
headroom = NET_SKB_PAD + sizeof(struct iphdr) +
sizeof(struct udphdr) + hdr_len + sizeof(ppph);
- if (skb_headroom(skb) < headroom) {
- skb2 = skb_realloc_headroom(skb, headroom);
- if (skb2 == NULL)
- goto abort;
- } else
- skb2 = skb;
-
- /* Check that the socket has room */
- if (atomic_read(&sk_tun->sk_wmem_alloc) < sk_tun->sk_sndbuf)
- skb_set_owner_w(skb2, sk_tun);
- else
- goto discard;
+ if (skb_cow_head(skb, headroom))
+ goto abort;
/* Setup PPP header */
- skb_push(skb2, sizeof(ppph));
- skb2->data[0] = ppph[0];
- skb2->data[1] = ppph[1];
+ __skb_push(skb, sizeof(ppph));
+ skb->data[0] = ppph[0];
+ skb->data[1] = ppph[1];
/* Setup L2TP header */
- skb_push(skb2, hdr_len);
- pppol2tp_build_l2tp_header(session, skb2->data);
+ pppol2tp_build_l2tp_header(session, __skb_push(skb, hdr_len));
/* Setup UDP header */
inet = inet_sk(sk_tun);
- skb_push(skb2, sizeof(struct udphdr));
- skb_reset_transport_header(skb2);
- uh = (struct udphdr *) skb2->data;
+ __skb_push(skb, sizeof(*uh));
+ skb_reset_transport_header(skb);
+ uh = udp_hdr(skb);
uh->source = inet->sport;
uh->dest = inet->dport;
uh->len = htons(sizeof(struct udphdr) + hdr_len + sizeof(ppph) + data_len);
uh->check = 0;
- /* Calculate UDP checksum if configured to do so */
+ /* *BROKEN* Calculate UDP checksum if configured to do so */
if (sk_tun->sk_no_check != UDP_CSUM_NOXMIT)
- csum = udp_csum_outgoing(sk_tun, skb2);
+ csum = udp_csum_outgoing(sk_tun, skb);
/* Debug */
if (session->send_seq)
if (session->debug & PPPOL2TP_MSG_DATA) {
int i;
- unsigned char *datap = skb2->data;
+ unsigned char *datap = skb->data;
printk(KERN_DEBUG "%s: xmit:", session->name);
for (i = 0; i < data_len; i++) {
printk("\n");
}
- memset(&(IPCB(skb2)->opt), 0, sizeof(IPCB(skb2)->opt));
- IPCB(skb2)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE | IPSKB_XFRM_TRANSFORMED |
- IPSKB_REROUTED);
- nf_reset(skb2);
+ memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
+ IPCB(skb)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE | IPSKB_XFRM_TRANSFORMED |
+ IPSKB_REROUTED);
+ nf_reset(skb);
/* Get routing info from the tunnel socket */
- dst_release(skb2->dst);
- skb2->dst = sk_dst_get(sk_tun);
+ dst_release(skb->dst);
+ skb->dst = sk_dst_get(sk_tun);
/* Queue the packet to IP for output */
- len = skb2->len;
- rc = ip_queue_xmit(skb2, 1);
+ len = skb->len;
+ rc = ip_queue_xmit(skb, 1);
/* Update stats */
if (rc >= 0) {
session->stats.tx_errors++;
}
- /* Free the original skb */
- kfree_skb(skb);
-
return 1;
-discard:
- /* Free the new skb. Caller will free original skb. */
- if (skb2 != skb)
- kfree_skb(skb2);
abort:
- return 0;
+ /* Free the original skb */
+ kfree_skb(skb);
+ return 1;
}
/*****************************************************************************
goto err;
}
+ sk = sock->sk;
+
/* Quick sanity checks */
- err = -ESOCKTNOSUPPORT;
- if (sock->type != SOCK_DGRAM) {
+ err = -EPROTONOSUPPORT;
+ if (sk->sk_protocol != IPPROTO_UDP) {
PRINTK(-1, PPPOL2TP_MSG_CONTROL, KERN_ERR,
- "tunl %hu: fd %d wrong type, got %d, expected %d\n",
- tunnel_id, fd, sock->type, SOCK_DGRAM);
+ "tunl %hu: fd %d wrong protocol, got %d, expected %d\n",
+ tunnel_id, fd, sk->sk_protocol, IPPROTO_UDP);
goto err;
}
err = -EAFNOSUPPORT;
}
err = -ENOTCONN;
- sk = sock->sk;
/* Check if this socket has already been prepped */
tunnel = (struct pppol2tp_tunnel *)sk->sk_user_data;
qdev->rsp_consumer_index) && (work_done < work_to_do)) {
net_rsp = qdev->rsp_current;
+ rmb();
+ /*
+ * Fix 4032 chipe undocumented "feature" where bit-8 is set if the
+ * inbound completion is for a VLAN.
+ */
+ if (qdev->device_id == QL3032_DEVICE_ID)
+ net_rsp->opcode &= 0x7f;
switch (net_rsp->opcode) {
case OPCODE_OB_MAC_IOCB_FN0:
return;
}
- /* phy config for RTL8169s mac_version C chip */
+ if ((tp->mac_version != RTL_GIGA_MAC_VER_02) &&
+ (tp->mac_version != RTL_GIGA_MAC_VER_03))
+ return;
+
mdio_write(ioaddr, 31, 0x0001); //w 31 2 0 1
mdio_write(ioaddr, 21, 0x1000); //w 21 15 0 1000
mdio_write(ioaddr, 24, 0x65c7); //w 24 15 0 65c7
rtl_set_rx_max_size(ioaddr);
- rtl_set_rx_tx_config_registers(tp);
+ if ((tp->mac_version == RTL_GIGA_MAC_VER_01) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_02) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_03) ||
+ (tp->mac_version == RTL_GIGA_MAC_VER_04))
+ rtl_set_rx_tx_config_registers(tp);
tp->cp_cmd |= rtl_rw_cpluscmd(ioaddr) | PCIMulRW;
rtl_set_rx_tx_desc_registers(tp, ioaddr);
+ if ((tp->mac_version != RTL_GIGA_MAC_VER_01) &&
+ (tp->mac_version != RTL_GIGA_MAC_VER_02) &&
+ (tp->mac_version != RTL_GIGA_MAC_VER_03) &&
+ (tp->mac_version != RTL_GIGA_MAC_VER_04)) {
+ RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
+ rtl_set_rx_tx_config_registers(tp);
+ }
+
RTL_W8(Cfg9346, Cfg9346_Lock);
/* Initially a 10 us delay. Turned it into a PCI commit. - FR */
/* Enable all known interrupts by setting the interrupt mask. */
RTL_W16(IntrMask, tp->intr_event);
-
- RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
}
static void rtl_hw_start_8168(struct net_device *dev)
(TX_BUFFS_AVAIL(tp) >= MAX_SKB_FRAGS)) {
netif_wake_queue(dev);
}
+ /*
+ * 8168 hack: TxPoll requests are lost when the Tx packets are
+ * too close. Let's kick an extra TxPoll request when a burst
+ * of start_xmit activity is detected (if it is not detected,
+ * it is slow enough). -- FR
+ */
+ smp_rmb();
+ if (tp->cur_tx != dirty_tx)
+ RTL_W8(TxPoll, NPQ);
}
}
#include "sky2.h"
#define DRV_NAME "sky2"
-#define DRV_VERSION "1.17"
+#define DRV_VERSION "1.18"
#define PFX DRV_NAME " "
/*
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4351) }, /* 88E8036 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4352) }, /* 88E8038 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4353) }, /* 88E8039 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4354) }, /* 88E8040 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4356) }, /* 88EC033 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x435A) }, /* 88E8048 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4360) }, /* 88E8052 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4361) }, /* 88E8050 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4362) }, /* 88E8053 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4363) }, /* 88E8055 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4364) }, /* 88E8056 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4365) }, /* 88E8070 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4366) }, /* 88EC036 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4367) }, /* 88EC032 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4368) }, /* 88EC034 */
"Extreme", /* 0xb5 */
"EC", /* 0xb6 */
"FE", /* 0xb7 */
+ "FE+", /* 0xb8 */
};
static void sky2_set_multicast(struct net_device *dev);
else
sky2_write8(hw, B2_Y2_CLK_GATE, 0);
- if (hw->chip_id == CHIP_ID_YUKON_EC_U ||
- hw->chip_id == CHIP_ID_YUKON_EX) {
+ if (hw->flags & SKY2_HW_ADV_POWER_CTL) {
u32 reg;
sky2_pci_write32(hw, PCI_DEV_REG3, 0);
struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
u16 ctrl, ct1000, adv, pg, ledctrl, ledover, reg;
- if (sky2->autoneg == AUTONEG_ENABLE
- && !(hw->chip_id == CHIP_ID_YUKON_XL
- || hw->chip_id == CHIP_ID_YUKON_EC_U
- || hw->chip_id == CHIP_ID_YUKON_EX)) {
+ if (sky2->autoneg == AUTONEG_ENABLE &&
+ !(hw->flags & SKY2_HW_NEWER_PHY)) {
u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK |
ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
if (sky2_is_copper(hw)) {
- if (hw->chip_id == CHIP_ID_YUKON_FE) {
+ if (!(hw->flags & SKY2_HW_GIGABIT)) {
/* enable automatic crossover */
ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO) >> 1;
+
+ if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
+ hw->chip_rev == CHIP_REV_YU_FE2_A0) {
+ u16 spec;
+
+ /* Enable Class A driver for FE+ A0 */
+ spec = gm_phy_read(hw, port, PHY_MARV_FE_SPEC_2);
+ spec |= PHY_M_FESC_SEL_CL_A;
+ gm_phy_write(hw, port, PHY_MARV_FE_SPEC_2, spec);
+ }
} else {
/* disable energy detect */
ctrl &= ~PHY_M_PC_EN_DET_MSK;
/* downshift on PHY 88E1112 and 88E1149 is changed */
if (sky2->autoneg == AUTONEG_ENABLE
- && (hw->chip_id == CHIP_ID_YUKON_XL
- || hw->chip_id == CHIP_ID_YUKON_EC_U
- || hw->chip_id == CHIP_ID_YUKON_EX)) {
+ && (hw->flags & SKY2_HW_NEWER_PHY)) {
/* set downshift counter to 3x and enable downshift */
ctrl &= ~PHY_M_PC_DSC_MSK;
ctrl |= PHY_M_PC_DSC(2) | PHY_M_PC_DOWN_S_ENA;
gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
/* special setup for PHY 88E1112 Fiber */
- if (hw->chip_id == CHIP_ID_YUKON_XL && !sky2_is_copper(hw)) {
+ if (hw->chip_id == CHIP_ID_YUKON_XL && (hw->flags & SKY2_HW_FIBRE_PHY)) {
pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
/* Fiber: select 1000BASE-X only mode MAC Specific Ctrl Reg. */
gma_write16(hw, port, GM_GP_CTRL, reg);
- if (hw->chip_id != CHIP_ID_YUKON_FE)
+ if (hw->flags & SKY2_HW_GIGABIT)
gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000);
gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv);
gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl);
break;
+ case CHIP_ID_YUKON_FE_P:
+ /* Enable Link Partner Next Page */
+ ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
+ ctrl |= PHY_M_PC_ENA_LIP_NP;
+
+ /* disable Energy Detect and enable scrambler */
+ ctrl &= ~(PHY_M_PC_ENA_ENE_DT | PHY_M_PC_DIS_SCRAMB);
+ gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
+
+ /* set LED2 -> ACT, LED1 -> LINK, LED0 -> SPEED */
+ ctrl = PHY_M_FELP_LED2_CTRL(LED_PAR_CTRL_ACT_BL) |
+ PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_LINK) |
+ PHY_M_FELP_LED0_CTRL(LED_PAR_CTRL_SPEED);
+
+ gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl);
+ break;
+
case CHIP_ID_YUKON_XL:
pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
/* set page register to 0 */
gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0);
+ } else if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
+ hw->chip_rev == CHIP_REV_YU_FE2_A0) {
+ /* apply workaround for integrated resistors calibration */
+ gm_phy_write(hw, port, PHY_MARV_PAGE_ADDR, 17);
+ gm_phy_write(hw, port, PHY_MARV_PAGE_DATA, 0x3f60);
} else if (hw->chip_id != CHIP_ID_YUKON_EX) {
+ /* no effect on Yukon-XL */
gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
if (sky2->autoneg == AUTONEG_DISABLE || sky2->speed == SPEED_100) {
static void sky2_set_tx_stfwd(struct sky2_hw *hw, unsigned port)
{
- if (hw->chip_id == CHIP_ID_YUKON_EX && hw->chip_rev != CHIP_REV_YU_EX_A0) {
+ struct net_device *dev = hw->dev[port];
+
+ if (dev->mtu <= ETH_DATA_LEN)
sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
- TX_STFW_ENA |
- (hw->dev[port]->mtu > ETH_DATA_LEN) ? TX_JUMBO_ENA : TX_JUMBO_DIS);
- } else {
- if (hw->dev[port]->mtu > ETH_DATA_LEN) {
- /* set Tx GMAC FIFO Almost Empty Threshold */
- sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR),
- (ECU_JUMBO_WM << 16) | ECU_AE_THR);
+ TX_JUMBO_DIS | TX_STFW_ENA);
- sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
- TX_JUMBO_ENA | TX_STFW_DIS);
+ else if (hw->chip_id != CHIP_ID_YUKON_EC_U)
+ sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
+ TX_STFW_ENA | TX_JUMBO_ENA);
+ else {
+ /* set Tx GMAC FIFO Almost Empty Threshold */
+ sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR),
+ (ECU_JUMBO_WM << 16) | ECU_AE_THR);
- /* Can't do offload because of lack of store/forward */
- hw->dev[port]->features &= ~(NETIF_F_TSO | NETIF_F_SG
- | NETIF_F_ALL_CSUM);
- } else
- sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
- TX_JUMBO_DIS | TX_STFW_ENA);
+ sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
+ TX_JUMBO_ENA | TX_STFW_DIS);
+
+ /* Can't do offload because of lack of store/forward */
+ dev->features &= ~(NETIF_F_TSO | NETIF_F_SG | NETIF_F_ALL_CSUM);
}
}
/* Configure Rx MAC FIFO */
sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
rx_reg = GMF_OPER_ON | GMF_RX_F_FL_ON;
- if (hw->chip_id == CHIP_ID_YUKON_EX)
+ if (hw->chip_id == CHIP_ID_YUKON_EX ||
+ hw->chip_id == CHIP_ID_YUKON_FE_P)
rx_reg |= GMF_RX_OVER_ON;
sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), rx_reg);
sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), GMR_FS_ANY_ERR);
/* Set threshold to 0xa (64 bytes) + 1 to workaround pause bug */
- sky2_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF+1);
+ reg = RX_GMF_FL_THR_DEF + 1;
+ /* Another magic mystery workaround from sk98lin */
+ if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
+ hw->chip_rev == CHIP_REV_YU_FE2_A0)
+ reg = 0x178;
+ sky2_write16(hw, SK_REG(port, RX_GMF_FL_THR), reg);
/* Configure Tx MAC FIFO */
sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
sky2_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);
- if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX) {
+ /* On chips without ram buffer, pause is controled by MAC level */
+ if (sky2_read8(hw, B2_E_0) == 0) {
sky2_write8(hw, SK_REG(port, RX_GMF_LP_THR), 768/8);
sky2_write8(hw, SK_REG(port, RX_GMF_UP_THR), 1024/8);
return le;
}
+static void tx_init(struct sky2_port *sky2)
+{
+ struct sky2_tx_le *le;
+
+ sky2->tx_prod = sky2->tx_cons = 0;
+ sky2->tx_tcpsum = 0;
+ sky2->tx_last_mss = 0;
+
+ le = get_tx_le(sky2);
+ le->addr = 0;
+ le->opcode = OP_ADDR64 | HW_OWNER;
+ sky2->tx_addr64 = 0;
+}
+
static inline struct tx_ring_info *tx_le_re(struct sky2_port *sky2,
struct sky2_tx_le *le)
{
*/
static void rx_set_checksum(struct sky2_port *sky2)
{
- struct sky2_rx_le *le;
-
- if (sky2->hw->chip_id != CHIP_ID_YUKON_EX) {
- le = sky2_next_rx(sky2);
- le->addr = cpu_to_le32((ETH_HLEN << 16) | ETH_HLEN);
- le->ctrl = 0;
- le->opcode = OP_TCPSTART | HW_OWNER;
+ struct sky2_rx_le *le = sky2_next_rx(sky2);
- sky2_write32(sky2->hw,
- Q_ADDR(rxqaddr[sky2->port], Q_CSR),
- sky2->rx_csum ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
- }
+ le->addr = cpu_to_le32((ETH_HLEN << 16) | ETH_HLEN);
+ le->ctrl = 0;
+ le->opcode = OP_TCPSTART | HW_OWNER;
+ sky2_write32(sky2->hw,
+ Q_ADDR(rxqaddr[sky2->port], Q_CSR),
+ sky2->rx_csum ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
}
/*
sky2_prefetch_init(hw, rxq, sky2->rx_le_map, RX_LE_SIZE - 1);
- rx_set_checksum(sky2);
+ if (!(hw->flags & SKY2_HW_NEW_LE))
+ rx_set_checksum(sky2);
/* Space needed for frame data + headers rounded up */
size = roundup(sky2->netdev->mtu + ETH_HLEN + VLAN_HLEN, 8);
struct sky2_port *sky2 = netdev_priv(dev);
struct sky2_hw *hw = sky2->hw;
unsigned port = sky2->port;
- u32 ramsize, imask;
+ u32 imask, ramsize;
int cap, err = -ENOMEM;
struct net_device *otherdev = hw->dev[sky2->port^1];
GFP_KERNEL);
if (!sky2->tx_ring)
goto err_out;
- sky2->tx_prod = sky2->tx_cons = 0;
+
+ tx_init(sky2);
sky2->rx_le = pci_alloc_consistent(hw->pdev, RX_LE_BYTES,
&sky2->rx_le_map);
/* Register is number of 4K blocks on internal RAM buffer. */
ramsize = sky2_read8(hw, B2_E_0) * 4;
- printk(KERN_INFO PFX "%s: ram buffer %dK\n", dev->name, ramsize);
-
if (ramsize > 0) {
u32 rxspace;
+ pr_debug(PFX "%s: ram buffer %dK\n", dev->name, ramsize);
if (ramsize < 16)
rxspace = ramsize / 2;
else
/* Check for TCP Segmentation Offload */
mss = skb_shinfo(skb)->gso_size;
if (mss != 0) {
- if (hw->chip_id != CHIP_ID_YUKON_EX)
+
+ if (!(hw->flags & SKY2_HW_NEW_LE))
mss += ETH_HLEN + ip_hdrlen(skb) + tcp_hdrlen(skb);
if (mss != sky2->tx_last_mss) {
le = get_tx_le(sky2);
le->addr = cpu_to_le32(mss);
- if (hw->chip_id == CHIP_ID_YUKON_EX)
+
+ if (hw->flags & SKY2_HW_NEW_LE)
le->opcode = OP_MSS | HW_OWNER;
else
le->opcode = OP_LRGLEN | HW_OWNER;
/* Handle TCP checksum offload */
if (skb->ip_summed == CHECKSUM_PARTIAL) {
/* On Yukon EX (some versions) encoding change. */
- if (hw->chip_id == CHIP_ID_YUKON_EX
- && hw->chip_rev != CHIP_REV_YU_EX_B0)
+ if (hw->flags & SKY2_HW_AUTO_TX_SUM)
ctrl |= CALSUM; /* auto checksum */
else {
const unsigned offset = skb_transport_offset(skb);
if (netif_msg_ifdown(sky2))
printk(KERN_INFO PFX "%s: disabling interface\n", dev->name);
- if (netif_carrier_ok(dev) && --hw->active == 0)
- del_timer(&hw->watchdog_timer);
-
/* Stop more packets from being queued */
netif_stop_queue(dev);
static u16 sky2_phy_speed(const struct sky2_hw *hw, u16 aux)
{
- if (!sky2_is_copper(hw))
+ if (hw->flags & SKY2_HW_FIBRE_PHY)
return SPEED_1000;
- if (hw->chip_id == CHIP_ID_YUKON_FE)
- return (aux & PHY_M_PS_SPEED_100) ? SPEED_100 : SPEED_10;
+ if (!(hw->flags & SKY2_HW_GIGABIT)) {
+ if (aux & PHY_M_PS_SPEED_100)
+ return SPEED_100;
+ else
+ return SPEED_10;
+ }
switch (aux & PHY_M_PS_SPEED_MSK) {
case PHY_M_PS_SPEED_1000:
netif_carrier_on(sky2->netdev);
- if (hw->active++ == 0)
- mod_timer(&hw->watchdog_timer, jiffies + 1);
-
+ mod_timer(&hw->watchdog_timer, jiffies + 1);
/* Turn on link LED */
sky2_write8(hw, SK_REG(port, LNK_LED_REG),
LINKLED_ON | LINKLED_BLINK_OFF | LINKLED_LINKSYNC_OFF);
- if (hw->chip_id == CHIP_ID_YUKON_XL
- || hw->chip_id == CHIP_ID_YUKON_EC_U
- || hw->chip_id == CHIP_ID_YUKON_EX) {
+ if (hw->flags & SKY2_HW_NEWER_PHY) {
u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
u16 led = PHY_M_LEDC_LOS_CTRL(1); /* link active */
netif_carrier_off(sky2->netdev);
- /* Stop watchdog if both ports are not active */
- if (--hw->active == 0)
- del_timer(&hw->watchdog_timer);
-
-
/* Turn on link LED */
sky2_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF);
/* Since the pause result bits seem to in different positions on
* different chips. look at registers.
*/
- if (!sky2_is_copper(hw)) {
+ if (hw->flags & SKY2_HW_FIBRE_PHY) {
/* Shift for bits in fiber PHY */
advert &= ~(ADVERTISE_PAUSE_CAP|ADVERTISE_PAUSE_ASYM);
lpa &= ~(LPA_PAUSE_CAP|LPA_PAUSE_ASYM);
if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
return -EINVAL;
- if (new_mtu > ETH_DATA_LEN && hw->chip_id == CHIP_ID_YUKON_FE)
+ if (new_mtu > ETH_DATA_LEN &&
+ (hw->chip_id == CHIP_ID_YUKON_FE ||
+ hw->chip_id == CHIP_ID_YUKON_FE_P))
return -EINVAL;
if (!netif_running(dev)) {
synchronize_irq(hw->pdev->irq);
- if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX)
+ if (sky2_read8(hw, B2_E_0) == 0)
sky2_set_tx_stfwd(hw, port);
ctl = gma_read16(hw, port, GM_GP_CTRL);
struct sky2_port *sky2 = netdev_priv(dev);
struct rx_ring_info *re = sky2->rx_ring + sky2->rx_next;
struct sk_buff *skb = NULL;
+ u16 count = (status & GMR_FS_LEN) >> 16;
+
+#ifdef SKY2_VLAN_TAG_USED
+ /* Account for vlan tag */
+ if (sky2->vlgrp && (status & GMR_FS_VLAN))
+ count -= VLAN_HLEN;
+#endif
if (unlikely(netif_msg_rx_status(sky2)))
printk(KERN_DEBUG PFX "%s: rx slot %u status 0x%x len %d\n",
sky2->rx_next = (sky2->rx_next + 1) % sky2->rx_pending;
prefetch(sky2->rx_ring + sky2->rx_next);
+ /* This chip has hardware problems that generates bogus status.
+ * So do only marginal checking and expect higher level protocols
+ * to handle crap frames.
+ */
+ if (sky2->hw->chip_id == CHIP_ID_YUKON_FE_P &&
+ sky2->hw->chip_rev == CHIP_REV_YU_FE2_A0 &&
+ length != count)
+ goto okay;
+
if (status & GMR_FS_ANY_ERR)
goto error;
if (!(status & GMR_FS_RX_OK))
goto resubmit;
- if (status >> 16 != length)
- goto len_mismatch;
+ /* if length reported by DMA does not match PHY, packet was truncated */
+ if (length != count)
+ goto len_error;
+okay:
if (length < copybreak)
skb = receive_copy(sky2, re, length);
else
return skb;
-len_mismatch:
+len_error:
/* Truncation of overlength packets
causes PHY length to not match MAC length */
++sky2->net_stats.rx_length_errors;
+ if (netif_msg_rx_err(sky2) && net_ratelimit())
+ pr_info(PFX "%s: rx length error: status %#x length %d\n",
+ dev->name, status, length);
+ goto resubmit;
error:
++sky2->net_stats.rx_errors;
}
/* This chip reports checksum status differently */
- if (hw->chip_id == CHIP_ID_YUKON_EX) {
+ if (hw->flags & SKY2_HW_NEW_LE) {
if (sky2->rx_csum &&
(le->css & (CSS_ISIPV4 | CSS_ISIPV6)) &&
(le->css & CSS_TCPUDPCSOK))
if (!sky2->rx_csum)
break;
- if (hw->chip_id == CHIP_ID_YUKON_EX)
+ /* If this happens then driver assuming wrong format */
+ if (unlikely(hw->flags & SKY2_HW_NEW_LE)) {
+ if (net_ratelimit())
+ printk(KERN_NOTICE "%s: unexpected"
+ " checksum status\n",
+ dev->name);
break;
+ }
/* Both checksum counters are programmed to start at
* the same offset, so unless there is a problem they
sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_IRQ_CHK);
}
-/* Check for lost IRQ once a second */
+static int sky2_rx_hung(struct net_device *dev)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
+ unsigned rxq = rxqaddr[port];
+ u32 mac_rp = sky2_read32(hw, SK_REG(port, RX_GMF_RP));
+ u8 mac_lev = sky2_read8(hw, SK_REG(port, RX_GMF_RLEV));
+ u8 fifo_rp = sky2_read8(hw, Q_ADDR(rxq, Q_RP));
+ u8 fifo_lev = sky2_read8(hw, Q_ADDR(rxq, Q_RL));
+
+ /* If idle and MAC or PCI is stuck */
+ if (sky2->check.last == dev->last_rx &&
+ ((mac_rp == sky2->check.mac_rp &&
+ mac_lev != 0 && mac_lev >= sky2->check.mac_lev) ||
+ /* Check if the PCI RX hang */
+ (fifo_rp == sky2->check.fifo_rp &&
+ fifo_lev != 0 && fifo_lev >= sky2->check.fifo_lev))) {
+ printk(KERN_DEBUG PFX "%s: hung mac %d:%d fifo %d (%d:%d)\n",
+ dev->name, mac_lev, mac_rp, fifo_lev, fifo_rp,
+ sky2_read8(hw, Q_ADDR(rxq, Q_WP)));
+ return 1;
+ } else {
+ sky2->check.last = dev->last_rx;
+ sky2->check.mac_rp = mac_rp;
+ sky2->check.mac_lev = mac_lev;
+ sky2->check.fifo_rp = fifo_rp;
+ sky2->check.fifo_lev = fifo_lev;
+ return 0;
+ }
+}
+
static void sky2_watchdog(unsigned long arg)
{
struct sky2_hw *hw = (struct sky2_hw *) arg;
+ struct net_device *dev;
+ /* Check for lost IRQ once a second */
if (sky2_read32(hw, B0_ISRC)) {
- struct net_device *dev = hw->dev[0];
-
+ dev = hw->dev[0];
if (__netif_rx_schedule_prep(dev))
__netif_rx_schedule(dev);
+ } else {
+ int i, active = 0;
+
+ for (i = 0; i < hw->ports; i++) {
+ dev = hw->dev[i];
+ if (!netif_running(dev))
+ continue;
+ ++active;
+
+ /* For chips with Rx FIFO, check if stuck */
+ if ((hw->flags & SKY2_HW_FIFO_HANG_CHECK) &&
+ sky2_rx_hung(dev)) {
+ pr_info(PFX "%s: receiver hang detected\n",
+ dev->name);
+ schedule_work(&hw->restart_work);
+ return;
+ }
+ }
+
+ if (active == 0)
+ return;
}
- if (hw->active > 0)
- mod_timer(&hw->watchdog_timer, round_jiffies(jiffies + HZ));
+ mod_timer(&hw->watchdog_timer, round_jiffies(jiffies + HZ));
}
/* Hardware/software error handling */
#endif
/* Chip internal frequency for clock calculations */
-static inline u32 sky2_mhz(const struct sky2_hw *hw)
+static u32 sky2_mhz(const struct sky2_hw *hw)
{
switch (hw->chip_id) {
case CHIP_ID_YUKON_EC:
case CHIP_ID_YUKON_EC_U:
case CHIP_ID_YUKON_EX:
- return 125; /* 125 Mhz */
+ return 125;
+
case CHIP_ID_YUKON_FE:
- return 100; /* 100 Mhz */
- default: /* YUKON_XL */
- return 156; /* 156 Mhz */
+ return 100;
+
+ case CHIP_ID_YUKON_FE_P:
+ return 50;
+
+ case CHIP_ID_YUKON_XL:
+ return 156;
+
+ default:
+ BUG();
}
}
sky2_write8(hw, B0_CTST, CS_RST_CLR);
hw->chip_id = sky2_read8(hw, B2_CHIP_ID);
- if (hw->chip_id < CHIP_ID_YUKON_XL || hw->chip_id > CHIP_ID_YUKON_FE) {
+ hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4;
+
+ switch(hw->chip_id) {
+ case CHIP_ID_YUKON_XL:
+ hw->flags = SKY2_HW_GIGABIT
+ | SKY2_HW_NEWER_PHY;
+ if (hw->chip_rev < 3)
+ hw->flags |= SKY2_HW_FIFO_HANG_CHECK;
+
+ break;
+
+ case CHIP_ID_YUKON_EC_U:
+ hw->flags = SKY2_HW_GIGABIT
+ | SKY2_HW_NEWER_PHY
+ | SKY2_HW_ADV_POWER_CTL;
+ break;
+
+ case CHIP_ID_YUKON_EX:
+ hw->flags = SKY2_HW_GIGABIT
+ | SKY2_HW_NEWER_PHY
+ | SKY2_HW_NEW_LE
+ | SKY2_HW_ADV_POWER_CTL;
+
+ /* New transmit checksum */
+ if (hw->chip_rev != CHIP_REV_YU_EX_B0)
+ hw->flags |= SKY2_HW_AUTO_TX_SUM;
+ break;
+
+ case CHIP_ID_YUKON_EC:
+ /* This rev is really old, and requires untested workarounds */
+ if (hw->chip_rev == CHIP_REV_YU_EC_A1) {
+ dev_err(&hw->pdev->dev, "unsupported revision Yukon-EC rev A1\n");
+ return -EOPNOTSUPP;
+ }
+ hw->flags = SKY2_HW_GIGABIT | SKY2_HW_FIFO_HANG_CHECK;
+ break;
+
+ case CHIP_ID_YUKON_FE:
+ break;
+
+ case CHIP_ID_YUKON_FE_P:
+ hw->flags = SKY2_HW_NEWER_PHY
+ | SKY2_HW_NEW_LE
+ | SKY2_HW_AUTO_TX_SUM
+ | SKY2_HW_ADV_POWER_CTL;
+ break;
+ default:
dev_err(&hw->pdev->dev, "unsupported chip type 0x%x\n",
hw->chip_id);
return -EOPNOTSUPP;
}
- hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4;
+ hw->pmd_type = sky2_read8(hw, B2_PMD_TYP);
+ if (hw->pmd_type == 'L' || hw->pmd_type == 'S' || hw->pmd_type == 'P')
+ hw->flags |= SKY2_HW_FIBRE_PHY;
- /* This rev is really old, and requires untested workarounds */
- if (hw->chip_id == CHIP_ID_YUKON_EC && hw->chip_rev == CHIP_REV_YU_EC_A1) {
- dev_err(&hw->pdev->dev, "unsupported revision Yukon-%s (0x%x) rev %d\n",
- yukon2_name[hw->chip_id - CHIP_ID_YUKON_XL],
- hw->chip_id, hw->chip_rev);
- return -EOPNOTSUPP;
- }
- hw->pmd_type = sky2_read8(hw, B2_PMD_TYP);
hw->ports = 1;
t8 = sky2_read8(hw, B2_Y2_HW_RES);
if ((t8 & CFG_DUAL_MAC_MSK) == CFG_DUAL_MAC_MSK) {
sky2->wol = wol->wolopts;
- if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX)
+ if (hw->chip_id == CHIP_ID_YUKON_EC_U ||
+ hw->chip_id == CHIP_ID_YUKON_EX ||
+ hw->chip_id == CHIP_ID_YUKON_FE_P)
sky2_write32(hw, B0_CTST, sky2->wol
? Y2_HW_WOL_ON : Y2_HW_WOL_OFF);
| SUPPORTED_100baseT_Full
| SUPPORTED_Autoneg | SUPPORTED_TP;
- if (hw->chip_id != CHIP_ID_YUKON_FE)
+ if (hw->flags & SKY2_HW_GIGABIT)
modes |= SUPPORTED_1000baseT_Half
| SUPPORTED_1000baseT_Full;
return modes;
ecmd->supported = sky2_supported_modes(hw);
ecmd->phy_address = PHY_ADDR_MARV;
if (sky2_is_copper(hw)) {
- ecmd->supported = SUPPORTED_10baseT_Half
- | SUPPORTED_10baseT_Full
- | SUPPORTED_100baseT_Half
- | SUPPORTED_100baseT_Full
- | SUPPORTED_1000baseT_Half
- | SUPPORTED_1000baseT_Full
- | SUPPORTED_Autoneg | SUPPORTED_TP;
ecmd->port = PORT_TP;
ecmd->speed = sky2->speed;
} else {
dev->features |= NETIF_F_HIGHDMA;
#ifdef SKY2_VLAN_TAG_USED
- dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
- dev->vlan_rx_register = sky2_vlan_rx_register;
+ /* The workaround for FE+ status conflicts with VLAN tag detection. */
+ if (!(sky2->hw->chip_id == CHIP_ID_YUKON_FE_P &&
+ sky2->hw->chip_rev == CHIP_REV_YU_FE2_A0)) {
+ dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
+ dev->vlan_rx_register = sky2_vlan_rx_register;
+ }
#endif
/* read the mac address */
return IRQ_NONE;
if (status & Y2_IS_IRQ_SW) {
- hw->msi = 1;
+ hw->flags |= SKY2_HW_USE_MSI;
wake_up(&hw->msi_wait);
sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ);
}
sky2_write8(hw, B0_CTST, CS_ST_SW_IRQ);
sky2_read8(hw, B0_CTST);
- wait_event_timeout(hw->msi_wait, hw->msi, HZ/10);
+ wait_event_timeout(hw->msi_wait, (hw->flags & SKY2_HW_USE_MSI), HZ/10);
- if (!hw->msi) {
+ if (!(hw->flags & SKY2_HW_USE_MSI)) {
/* MSI test failed, go back to INTx mode */
dev_info(&pdev->dev, "No interrupt generated using MSI, "
"switching to INTx mode.\n");
goto err_out_free_netdev;
}
- err = request_irq(pdev->irq, sky2_intr, hw->msi ? 0 : IRQF_SHARED,
+ err = request_irq(pdev->irq, sky2_intr,
+ (hw->flags & SKY2_HW_USE_MSI) ? 0 : IRQF_SHARED,
dev->name, hw);
if (err) {
dev_err(&pdev->dev, "cannot assign irq %d\n", pdev->irq);
return 0;
err_out_unregister:
- if (hw->msi)
+ if (hw->flags & SKY2_HW_USE_MSI)
pci_disable_msi(pdev);
unregister_netdev(dev);
err_out_free_netdev:
sky2_read8(hw, B0_CTST);
free_irq(pdev->irq, hw);
- if (hw->msi)
+ if (hw->flags & SKY2_HW_USE_MSI)
pci_disable_msi(pdev);
pci_free_consistent(pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma);
pci_release_regions(pdev);
pci_enable_wake(pdev, PCI_D0, 0);
/* Re-enable all clocks */
- if (hw->chip_id == CHIP_ID_YUKON_EX || hw->chip_id == CHIP_ID_YUKON_EC_U)
+ if (hw->chip_id == CHIP_ID_YUKON_EX ||
+ hw->chip_id == CHIP_ID_YUKON_EC_U ||
+ hw->chip_id == CHIP_ID_YUKON_FE_P)
sky2_pci_write32(hw, PCI_DEV_REG3, 0);
sky2_reset(hw);
CHIP_ID_YUKON_EX = 0xb5, /* Chip ID for YUKON-2 Extreme */
CHIP_ID_YUKON_EC = 0xb6, /* Chip ID for YUKON-2 EC */
CHIP_ID_YUKON_FE = 0xb7, /* Chip ID for YUKON-2 FE */
-
+ CHIP_ID_YUKON_FE_P = 0xb8, /* Chip ID for YUKON-2 FE+ */
+};
+enum yukon_ec_rev {
CHIP_REV_YU_EC_A1 = 0, /* Chip Rev. for Yukon-EC A1/A0 */
CHIP_REV_YU_EC_A2 = 1, /* Chip Rev. for Yukon-EC A2 */
CHIP_REV_YU_EC_A3 = 2, /* Chip Rev. for Yukon-EC A3 */
-
+};
+enum yukon_ec_u_rev {
CHIP_REV_YU_EC_U_A0 = 1,
CHIP_REV_YU_EC_U_A1 = 2,
CHIP_REV_YU_EC_U_B0 = 3,
-
+};
+enum yukon_fe_rev {
CHIP_REV_YU_FE_A1 = 1,
CHIP_REV_YU_FE_A2 = 2,
-
+};
+enum yukon_fe_p_rev {
+ CHIP_REV_YU_FE2_A0 = 0,
};
enum yukon_ex_rev {
CHIP_REV_YU_EX_A0 = 1,
/* Receive Frame Status Encoding */
enum {
- GMR_FS_LEN = 0xffff<<16, /* Bit 31..16: Rx Frame Length */
+ GMR_FS_LEN = 0x7fff<<16, /* Bit 30..16: Rx Frame Length */
GMR_FS_VLAN = 1<<13, /* VLAN Packet */
GMR_FS_JABBER = 1<<12, /* Jabber Packet */
GMR_FS_UN_SIZE = 1<<11, /* Undersize Packet */
GMF_RX_CTRL_DEF = GMF_OPER_ON | GMF_RX_F_FL_ON,
};
+/* TX_GMF_EA 32 bit Tx GMAC FIFO End Address */
+enum {
+ TX_DYN_WM_ENA = 3, /* Yukon-FE+ specific */
+};
/* TX_GMF_CTRL_T 32 bit Tx GMAC FIFO Control/Test */
enum {
u16 rx_tag;
struct vlan_group *vlgrp;
#endif
+ struct {
+ unsigned long last;
+ u32 mac_rp;
+ u8 mac_lev;
+ u8 fifo_rp;
+ u8 fifo_lev;
+ } check;
+
dma_addr_t rx_le_map;
dma_addr_t tx_le_map;
void __iomem *regs;
struct pci_dev *pdev;
struct net_device *dev[2];
+ unsigned long flags;
+#define SKY2_HW_USE_MSI 0x00000001
+#define SKY2_HW_FIBRE_PHY 0x00000002
+#define SKY2_HW_GIGABIT 0x00000004
+#define SKY2_HW_NEWER_PHY 0x00000008
+#define SKY2_HW_FIFO_HANG_CHECK 0x00000010
+#define SKY2_HW_NEW_LE 0x00000020 /* new LSOv2 format */
+#define SKY2_HW_AUTO_TX_SUM 0x00000040 /* new IP decode for Tx */
+#define SKY2_HW_ADV_POWER_CTL 0x00000080 /* additional PHY power regs */
u8 chip_id;
u8 chip_rev;
u8 pmd_type;
u8 ports;
- u8 active;
struct sky2_status_le *st_le;
u32 st_idx;
struct timer_list watchdog_timer;
struct work_struct restart_work;
- int msi;
wait_queue_head_t msi_wait;
};
static inline int sky2_is_copper(const struct sky2_hw *hw)
{
- return !(hw->pmd_type == 'L' || hw->pmd_type == 'S' || hw->pmd_type == 'P');
+ return !(hw->flags & SKY2_HW_FIBRE_PHY);
}
/* Register accessor for memory mapped device */
dev->net->ethtool_ops = &dm9601_ethtool_ops;
dev->net->hard_header_len += DM_TX_OVERHEAD;
dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
- dev->rx_urb_size = dev->net->mtu + DM_RX_OVERHEAD;
+ dev->rx_urb_size = dev->net->mtu + ETH_HLEN + DM_RX_OVERHEAD;
dev->mii.dev = dev->net;
dev->mii.mdio_read = dm9601_mdio_read;
obj-$(CONFIG_PCMCIA_WL3501) += wl3501_cs.o
obj-$(CONFIG_USB_ZD1201) += zd1201.o
-obj-$(CONFIG_LIBERTAS_USB) += libertas/
+obj-$(CONFIG_LIBERTAS) += libertas/
rtl8187-objs := rtl8187_dev.o rtl8187_rtl8225.o
obj-$(CONFIG_RTL8187) += rtl8187.o
u16 maxpower;
if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) {
- printk(PFX KERN_ERR "TX power not in dBm.\n");
+ printk(KERN_ERR PFX "TX power not in dBm.\n");
return -EOPNOTSUPP;
}
static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
{
u16 command;
- u32 bar;
u8 __iomem *csr;
u8 cmd_hi;
* re-enable them when it's ready.
*/
pci_read_config_word(dev, PCI_COMMAND, &command);
- pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar);
- if (!(command & PCI_COMMAND_MEMORY) || !bar)
+ if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0))
return;
- csr = ioremap(bar, 8);
+ /* Convert from PCI bus to resource space. */
+ csr = ioremap(pci_resource_start(dev, 0), 8);
if (!csr) {
printk(KERN_WARNING "PCI: Can't map %s e100 registers\n",
pci_name(dev));
if (ret)
goto out;
}
+ envp[i] = NULL;
out:
free_page((unsigned long)prop_buf);
struct rtc_plat_data {
struct rtc_device *rtc;
void __iomem *ioaddr;
- unsigned long baseaddr;
+ resource_size_t baseaddr;
unsigned long last_jiffies;
int irq;
unsigned int irqen;
void __iomem *ioaddr_rtc;
size_t size_nvram;
size_t size;
- unsigned long baseaddr;
+ resource_size_t baseaddr;
unsigned long last_jiffies;
};
struct scb *scb;
pci_map_sg(asd_ha->pcidev, &task->smp_task.smp_req, 1,
- PCI_DMA_FROMDEVICE);
+ PCI_DMA_TODEVICE);
pci_map_sg(asd_ha->pcidev, &task->smp_task.smp_resp, 1,
PCI_DMA_FROMDEVICE);
BUG_ON(!task);
pci_unmap_sg(a->ha->pcidev, &task->smp_task.smp_req, 1,
- PCI_DMA_FROMDEVICE);
+ PCI_DMA_TODEVICE);
pci_unmap_sg(a->ha->pcidev, &task->smp_task.smp_resp, 1,
PCI_DMA_FROMDEVICE);
}
esp->host->transportt = esp_transport_template;
esp->host->max_lun = ESP_MAX_LUN;
esp->host->cmd_per_lun = 2;
+ esp->host->unique_id = instance;
esp_set_clock_params(esp);
if (err)
return err;
- esp->host->unique_id = instance++;
+ instance++;
scsi_scan_host(esp->host);
*len = 0;
+ if (scsi_sg_count(cmd) == 1 && !adapter->has_64bit_addr) {
+ sg = scsi_sglist(cmd);
+ scb->dma_h_bulkdata = sg_dma_address(sg);
+ *buf = (u32)scb->dma_h_bulkdata;
+ *len = sg_dma_len(sg);
+ return 0;
+ }
+
scsi_for_each_sg(cmd, sg, sgcnt, idx) {
if (adapter->has_64bit_addr) {
scb->sgl64[idx].address = sg_dma_address(sg);
struct scsi_target *starget = sdev->sdev_target;
struct Scsi_Host *shost = sdev->host;
int len = sdev->inquiry_len;
+ int min_period = spi_min_period(starget);
+ int max_width = spi_max_width(starget);
/* first set us up for narrow async */
DV_SET(offset, 0);
DV_SET(width, 0);
-
+
if (spi_dv_device_compare_inquiry(sdev, buffer, buffer, DV_LOOPS)
!= SPI_COMPARE_SUCCESS) {
starget_printk(KERN_ERR, starget, "Domain Validation Initial Inquiry Failed\n");
return;
}
+ if (!scsi_device_wide(sdev)) {
+ spi_max_width(starget) = 0;
+ max_width = 0;
+ }
+
/* test width */
- if (i->f->set_width && spi_max_width(starget) &&
- scsi_device_wide(sdev)) {
+ if (i->f->set_width && max_width) {
i->f->set_width(starget, 1);
if (spi_dv_device_compare_inquiry(sdev, buffer,
!= SPI_COMPARE_SUCCESS) {
starget_printk(KERN_ERR, starget, "Wide Transfers Fail\n");
i->f->set_width(starget, 0);
+ /* Make sure we don't force wide back on by asking
+ * for a transfer period that requires it */
+ max_width = 0;
+ if (min_period < 10)
+ min_period = 10;
}
}
/* now set up to the maximum */
DV_SET(offset, spi_max_offset(starget));
- DV_SET(period, spi_min_period(starget));
+ DV_SET(period, min_period);
+
/* try QAS requests; this should be harmless to set if the
* target supports it */
if (scsi_device_qas(sdev)) {
DV_SET(qas, 0);
}
- if (scsi_device_ius(sdev) && spi_min_period(starget) < 9) {
+ if (scsi_device_ius(sdev) && min_period < 9) {
/* This u320 (or u640). Set IU transfers */
DV_SET(iu, 1);
/* Then set the optional parameters */
DV_SET(rd_strm, 1);
DV_SET(wr_flow, 1);
DV_SET(rti, 1);
- if (spi_min_period(starget) == 8)
+ if (min_period == 8)
DV_SET(pcomp_en, 1);
} else {
DV_SET(iu, 0);
} else {
DV_SET(dt, 1);
}
+ /* set width last because it will pull all the other
+ * parameters down to required values */
+ DV_SET(width, max_width);
+
/* Do the read only INQUIRY tests */
spi_dv_retrain(sdev, buffer, buffer + sdev->inquiry_len,
spi_dv_device_compare_inquiry);
up->smc_tfcr = SMC_EB;
}
-#define DPRAM_BASE ((unsigned char *)&cpmp->cp_dpmem[0])
+#define DPRAM_BASE ((unsigned char *)cpm_dpram_addr(0))
#endif
PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL432",0x3beb8cf2,0x1cce7ac4),
PCMCIA_MFC_DEVICE_PROD_ID12(2,"Elan","Serial Port: SL432",0x3beb8cf2,0x1cce7ac4),
PCMCIA_MFC_DEVICE_PROD_ID12(3,"Elan","Serial Port: SL432",0x3beb8cf2,0x1cce7ac4),
+ PCMCIA_DEVICE_MANF_CARD(0x0279, 0x950b),
/* too generic */
/* PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0160, 0x0002), */
/* PCMCIA_MFC_DEVICE_MANF_CARD(1, 0x0160, 0x0002), */
#include <asm/prom.h>
#include <asm/of_device.h>
-#if defined(CONFIG_SERIAL_SUNZILOG_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
+#if defined(CONFIG_SERIAL_SUNSAB_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
#define SUPPORT_SYSRQ
#endif
unsigned char interrupt_mask1;/* ISR1 masking */
unsigned char pvr_dtr_bit; /* Which PVR bit is DTR */
unsigned char pvr_dsr_bit; /* Which PVR bit is DSR */
+ unsigned int gis_shift;
int type; /* SAB82532 version */
/* Setting configuration bits while the transmitter is active
struct tty_struct *tty;
union sab82532_irq_status status;
unsigned long flags;
+ unsigned char gis;
spin_lock_irqsave(&up->port.lock, flags);
status.stat = 0;
- if (readb(&up->regs->r.gis) & SAB82532_GIS_ISA0)
+ gis = readb(&up->regs->r.gis) >> up->gis_shift;
+ if (gis & 1)
status.sreg.isr0 = readb(&up->regs->r.isr0);
- if (readb(&up->regs->r.gis) & SAB82532_GIS_ISA1)
+ if (gis & 2)
status.sreg.isr1 = readb(&up->regs->r.isr1);
tty = NULL;
transmit_chars(up, &status);
}
- spin_unlock(&up->port.lock);
-
- if (tty)
- tty_flip_buffer_push(tty);
-
- up++;
-
- spin_lock(&up->port.lock);
-
- status.stat = 0;
- if (readb(&up->regs->r.gis) & SAB82532_GIS_ISB0)
- status.sreg.isr0 = readb(&up->regs->r.isr0);
- if (readb(&up->regs->r.gis) & SAB82532_GIS_ISB1)
- status.sreg.isr1 = readb(&up->regs->r.isr1);
-
- tty = NULL;
- if (status.stat) {
- if ((status.sreg.isr0 & (SAB82532_ISR0_TCD | SAB82532_ISR0_TIME |
- SAB82532_ISR0_RFO | SAB82532_ISR0_RPF)) ||
- (status.sreg.isr1 & SAB82532_ISR1_BRK))
-
- tty = receive_chars(up, &status);
- if ((status.sreg.isr0 & SAB82532_ISR0_CDSC) ||
- (status.sreg.isr1 & (SAB82532_ISR1_BRK | SAB82532_ISR1_CSC)))
- check_status(up, &status);
- if (status.sreg.isr1 & (SAB82532_ISR1_ALLS | SAB82532_ISR1_XPR))
- transmit_chars(up, &status);
- }
-
spin_unlock_irqrestore(&up->port.lock, flags);
if (tty)
struct uart_sunsab_port *up = (struct uart_sunsab_port *) port;
unsigned long flags;
unsigned char tmp;
+ int err = request_irq(up->port.irq, sunsab_interrupt,
+ IRQF_SHARED, "sab", up);
+ if (err)
+ return err;
spin_lock_irqsave(&up->port.lock, flags);
#endif
spin_unlock_irqrestore(&up->port.lock, flags);
+ free_irq(up->port.irq, up);
}
/*
if ((up->port.line & 0x1) == 0) {
up->pvr_dsr_bit = (1 << 0);
up->pvr_dtr_bit = (1 << 1);
+ up->gis_shift = 2;
} else {
up->pvr_dsr_bit = (1 << 3);
up->pvr_dtr_bit = (1 << 2);
+ up->gis_shift = 0;
}
up->cached_pvr = (1 << 1) | (1 << 2) | (1 << 4);
writeb(up->cached_pvr, &up->regs->w.pvr);
up->tec_timeout = SAB82532_MAX_TEC_TIMEOUT;
up->cec_timeout = SAB82532_MAX_CEC_TIMEOUT;
- if (!(up->port.line & 0x01)) {
- int err;
-
- err = request_irq(up->port.irq, sunsab_interrupt,
- IRQF_SHARED, "sab", up);
- if (err) {
- of_iounmap(&op->resource[0],
- up->port.membase,
- sizeof(union sab82532_async_regs));
- return err;
- }
- }
-
return 0;
}
0,
(inst * 2) + 0);
if (err)
- return err;
+ goto out;
err = sunsab_init_one(&up[1], op,
sizeof(union sab82532_async_regs),
(inst * 2) + 1);
- if (err) {
- of_iounmap(&op->resource[0],
- up[0].port.membase,
- sizeof(union sab82532_async_regs));
- free_irq(up[0].port.irq, &up[0]);
- return err;
- }
+ if (err)
+ goto out1;
sunserial_console_match(SUNSAB_CONSOLE(), op->node,
&sunsab_reg, up[0].port.line);
- uart_add_one_port(&sunsab_reg, &up[0].port);
sunserial_console_match(SUNSAB_CONSOLE(), op->node,
&sunsab_reg, up[1].port.line);
- uart_add_one_port(&sunsab_reg, &up[1].port);
+
+ err = uart_add_one_port(&sunsab_reg, &up[0].port);
+ if (err)
+ goto out2;
+
+ err = uart_add_one_port(&sunsab_reg, &up[1].port);
+ if (err)
+ goto out3;
dev_set_drvdata(&op->dev, &up[0]);
inst++;
return 0;
-}
-
-static void __devexit sab_remove_one(struct uart_sunsab_port *up)
-{
- struct of_device *op = to_of_device(up->port.dev);
- uart_remove_one_port(&sunsab_reg, &up->port);
- if (!(up->port.line & 1))
- free_irq(up->port.irq, up);
+out3:
+ uart_remove_one_port(&sunsab_reg, &up[0].port);
+out2:
of_iounmap(&op->resource[0],
- up->port.membase,
+ up[1].port.membase,
sizeof(union sab82532_async_regs));
+out1:
+ of_iounmap(&op->resource[0],
+ up[0].port.membase,
+ sizeof(union sab82532_async_regs));
+out:
+ return err;
}
static int __devexit sab_remove(struct of_device *op)
{
struct uart_sunsab_port *up = dev_get_drvdata(&op->dev);
- sab_remove_one(&up[0]);
- sab_remove_one(&up[1]);
+ uart_remove_one_port(&sunsab_reg, &up[1].port);
+ uart_remove_one_port(&sunsab_reg, &up[0].port);
+ of_iounmap(&op->resource[0],
+ up[1].port.membase,
+ sizeof(union sab82532_async_regs));
+ of_iounmap(&op->resource[0],
+ up[0].port.membase,
+ sizeof(union sab82532_async_regs));
dev_set_drvdata(&op->dev, NULL);
sunsab_reg.minor = sunserial_current_minor;
sunsab_reg.nr = num_channels;
+ sunsab_reg.cons = SUNSAB_CONSOLE();
err = uart_register_driver(&sunsab_reg);
if (err) {
/* turn off PLL */
tmp = INREG(dpll_reg);
- dpll_reg &= ~DPLL_VCO_ENABLE;
+ tmp &= ~DPLL_VCO_ENABLE;
OUTREG(dpll_reg, tmp);
/* Set PLL parameters */
err = add_uevent_var(envp, num_envp, &cur_index, buffer, buffer_size,
&cur_len, "W1_SLAVE_ID=%024LX",
(unsigned long long)sl->reg_num.id);
+ envp[cur_index] = NULL;
if (err)
return err;
fput(file);
return -EAGAIN;
}
+ req->ki_filp = file;
if (iocb->aio_flags & IOCB_FLAG_RESFD) {
/*
* If the IOCB_FLAG_RESFD flag of aio_flags is set, get an
}
}
- req->ki_filp = file;
ret = put_user(req->ki_key, &user_iocb->aio_key);
if (unlikely(ret)) {
dprintk("EFAULT: aio_key\n");
* __start to address 4 so that is okay).
*/
if (rev > OLD_FLAT_VERSION) {
+ unsigned long persistent = 0;
for (i=0; i < relocs; i++) {
unsigned long addr, relval;
relocated (of course, the address has to be
relocated first). */
relval = ntohl(reloc[i]);
+ if (flat_set_persistent (relval, &persistent))
+ continue;
addr = flat_get_relocate_addr(relval);
rp = (unsigned long *) calc_reloc(addr, libinfo, id, 1);
if (rp == (unsigned long *)RELOC_FAILED) {
}
/* Get the pointer's value. */
- addr = flat_get_addr_from_rp(rp, relval, flags);
+ addr = flat_get_addr_from_rp(rp, relval, flags,
+ &persistent);
if (addr != 0) {
/*
* Do the relocation. PIC relocs in the data section are
COMPATIBLE_IOCTL(SIOCGIWRETRY)
COMPATIBLE_IOCTL(SIOCSIWPOWER)
COMPATIBLE_IOCTL(SIOCGIWPOWER)
+COMPATIBLE_IOCTL(SIOCSIWAUTH)
+COMPATIBLE_IOCTL(SIOCGIWAUTH)
/* hiddev */
COMPATIBLE_IOCTL(HIDIOCGVERSION)
COMPATIBLE_IOCTL(HIDIOCAPPLICATION)
#include <linux/tsacct_kern.h>
#include <linux/cn_proc.h>
#include <linux/audit.h>
-#include <linux/signalfd.h>
#include <asm/uaccess.h>
#include <asm/mmu_context.h>
* and we can just re-use it all.
*/
if (atomic_read(&oldsighand->count) <= 1) {
- signalfd_detach(tsk);
exit_itimers(sig);
return 0;
}
sig->flags = 0;
no_thread_group:
- signalfd_detach(tsk);
exit_itimers(sig);
if (leader)
release_task(leader);
struct dx_map_entry
{
u32 hash;
- u32 offs;
+ u16 offs;
+ u16 size;
};
#ifdef CONFIG_EXT3_INDEX
entries = (struct dx_entry *) (((char *)&root->info) +
root->info.info_length);
- assert(dx_get_limit(entries) == dx_root_limit(dir,
- root->info.info_length));
+
+ if (dx_get_limit(entries) != dx_root_limit(dir,
+ root->info.info_length)) {
+ ext3_warning(dir->i_sb, __FUNCTION__,
+ "dx entry: limit != root limit");
+ brelse(bh);
+ *err = ERR_BAD_DX_DIR;
+ goto fail;
+ }
+
dxtrace (printk("Look up %x", hash));
while (1)
{
count = dx_get_count(entries);
- assert (count && count <= dx_get_limit(entries));
+ if (!count || count > dx_get_limit(entries)) {
+ ext3_warning(dir->i_sb, __FUNCTION__,
+ "dx entry: no count or count > limit");
+ brelse(bh);
+ *err = ERR_BAD_DX_DIR;
+ goto fail2;
+ }
+
p = entries + 1;
q = entries + count - 1;
while (p <= q)
if (!(bh = ext3_bread (NULL,dir, dx_get_block(at), 0, err)))
goto fail2;
at = entries = ((struct dx_node *) bh->b_data)->entries;
- assert (dx_get_limit(entries) == dx_node_limit (dir));
+ if (dx_get_limit(entries) != dx_node_limit (dir)) {
+ ext3_warning(dir->i_sb, __FUNCTION__,
+ "dx entry: limit != node limit");
+ brelse(bh);
+ *err = ERR_BAD_DX_DIR;
+ goto fail2;
+ }
frame++;
+ frame->bh = NULL;
}
fail2:
while (frame >= frame_in) {
frame--;
}
fail:
+ if (*err == ERR_BAD_DX_DIR)
+ ext3_warning(dir->i_sb, __FUNCTION__,
+ "Corrupt dir inode %ld, running e2fsck is "
+ "recommended.", dir->i_ino);
return NULL;
}
* Directory block splitting, compacting
*/
+/*
+ * Create map of hash values, offsets, and sizes, stored at end of block.
+ * Returns number of entries mapped.
+ */
static int dx_make_map (struct ext3_dir_entry_2 *de, int size,
struct dx_hash_info *hinfo, struct dx_map_entry *map_tail)
{
ext3fs_dirhash(de->name, de->name_len, &h);
map_tail--;
map_tail->hash = h.hash;
- map_tail->offs = (u32) ((char *) de - base);
+ map_tail->offs = (u16) ((char *) de - base);
+ map_tail->size = le16_to_cpu(de->rec_len);
count++;
cond_resched();
}
return count;
}
+/* Sort map by hash value */
static void dx_sort_map (struct dx_map_entry *map, unsigned count)
{
struct dx_map_entry *p, *q, *top = map + count - 1;
}
#ifdef CONFIG_EXT3_INDEX
+/*
+ * Move count entries from end of map between two memory locations.
+ * Returns pointer to last entry moved.
+ */
static struct ext3_dir_entry_2 *
dx_move_dirents(char *from, char *to, struct dx_map_entry *map, int count)
{
return (struct ext3_dir_entry_2 *) (to - rec_len);
}
+/*
+ * Compact each dir entry in the range to the minimal rec_len.
+ * Returns pointer to last entry in range.
+ */
static struct ext3_dir_entry_2* dx_pack_dirents(char *base, int size)
{
struct ext3_dir_entry_2 *next, *to, *prev, *de = (struct ext3_dir_entry_2 *) base;
return prev;
}
+/*
+ * Split a full leaf block to make room for a new dir entry.
+ * Allocate a new block, and move entries so that they are approx. equally full.
+ * Returns pointer to de in block into which the new entry will be inserted.
+ */
static struct ext3_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
struct buffer_head **bh,struct dx_frame *frame,
struct dx_hash_info *hinfo, int *error)
u32 hash2;
struct dx_map_entry *map;
char *data1 = (*bh)->b_data, *data2;
- unsigned split;
+ unsigned split, move, size, i;
struct ext3_dir_entry_2 *de = NULL, *de2;
int err = 0;
count = dx_make_map ((struct ext3_dir_entry_2 *) data1,
blocksize, hinfo, map);
map -= count;
- split = count/2; // need to adjust to actual middle
dx_sort_map (map, count);
+ /* Split the existing block in the middle, size-wise */
+ size = 0;
+ move = 0;
+ for (i = count-1; i >= 0; i--) {
+ /* is more than half of this entry in 2nd half of the block? */
+ if (size + map[i].size/2 > blocksize/2)
+ break;
+ size += map[i].size;
+ move++;
+ }
+ /* map index at which we will split */
+ split = count - move;
hash2 = map[split].hash;
continued = hash2 == map[split - 1].hash;
dxtrace(printk("Split block %i at %x, %i/%i\n",
struct dx_map_entry
{
u32 hash;
- u32 offs;
+ u16 offs;
+ u16 size;
};
#ifdef CONFIG_EXT4_INDEX
entries = (struct dx_entry *) (((char *)&root->info) +
root->info.info_length);
- assert(dx_get_limit(entries) == dx_root_limit(dir,
- root->info.info_length));
+
+ if (dx_get_limit(entries) != dx_root_limit(dir,
+ root->info.info_length)) {
+ ext4_warning(dir->i_sb, __FUNCTION__,
+ "dx entry: limit != root limit");
+ brelse(bh);
+ *err = ERR_BAD_DX_DIR;
+ goto fail;
+ }
+
dxtrace (printk("Look up %x", hash));
while (1)
{
count = dx_get_count(entries);
- assert (count && count <= dx_get_limit(entries));
+ if (!count || count > dx_get_limit(entries)) {
+ ext4_warning(dir->i_sb, __FUNCTION__,
+ "dx entry: no count or count > limit");
+ brelse(bh);
+ *err = ERR_BAD_DX_DIR;
+ goto fail2;
+ }
+
p = entries + 1;
q = entries + count - 1;
while (p <= q)
if (!(bh = ext4_bread (NULL,dir, dx_get_block(at), 0, err)))
goto fail2;
at = entries = ((struct dx_node *) bh->b_data)->entries;
- assert (dx_get_limit(entries) == dx_node_limit (dir));
+ if (dx_get_limit(entries) != dx_node_limit (dir)) {
+ ext4_warning(dir->i_sb, __FUNCTION__,
+ "dx entry: limit != node limit");
+ brelse(bh);
+ *err = ERR_BAD_DX_DIR;
+ goto fail2;
+ }
frame++;
+ frame->bh = NULL;
}
fail2:
while (frame >= frame_in) {
frame--;
}
fail:
+ if (*err == ERR_BAD_DX_DIR)
+ ext4_warning(dir->i_sb, __FUNCTION__,
+ "Corrupt dir inode %ld, running e2fsck is "
+ "recommended.", dir->i_ino);
return NULL;
}
* Directory block splitting, compacting
*/
+/*
+ * Create map of hash values, offsets, and sizes, stored at end of block.
+ * Returns number of entries mapped.
+ */
static int dx_make_map (struct ext4_dir_entry_2 *de, int size,
struct dx_hash_info *hinfo, struct dx_map_entry *map_tail)
{
ext4fs_dirhash(de->name, de->name_len, &h);
map_tail--;
map_tail->hash = h.hash;
- map_tail->offs = (u32) ((char *) de - base);
+ map_tail->offs = (u16) ((char *) de - base);
+ map_tail->size = le16_to_cpu(de->rec_len);
count++;
cond_resched();
}
return count;
}
+/* Sort map by hash value */
static void dx_sort_map (struct dx_map_entry *map, unsigned count)
{
struct dx_map_entry *p, *q, *top = map + count - 1;
}
#ifdef CONFIG_EXT4_INDEX
+/*
+ * Move count entries from end of map between two memory locations.
+ * Returns pointer to last entry moved.
+ */
static struct ext4_dir_entry_2 *
dx_move_dirents(char *from, char *to, struct dx_map_entry *map, int count)
{
return (struct ext4_dir_entry_2 *) (to - rec_len);
}
+/*
+ * Compact each dir entry in the range to the minimal rec_len.
+ * Returns pointer to last entry in range.
+ */
static struct ext4_dir_entry_2* dx_pack_dirents(char *base, int size)
{
struct ext4_dir_entry_2 *next, *to, *prev, *de = (struct ext4_dir_entry_2 *) base;
return prev;
}
+/*
+ * Split a full leaf block to make room for a new dir entry.
+ * Allocate a new block, and move entries so that they are approx. equally full.
+ * Returns pointer to de in block into which the new entry will be inserted.
+ */
static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
struct buffer_head **bh,struct dx_frame *frame,
struct dx_hash_info *hinfo, int *error)
u32 hash2;
struct dx_map_entry *map;
char *data1 = (*bh)->b_data, *data2;
- unsigned split;
+ unsigned split, move, size, i;
struct ext4_dir_entry_2 *de = NULL, *de2;
int err = 0;
count = dx_make_map ((struct ext4_dir_entry_2 *) data1,
blocksize, hinfo, map);
map -= count;
- split = count/2; // need to adjust to actual middle
dx_sort_map (map, count);
+ /* Split the existing block in the middle, size-wise */
+ size = 0;
+ move = 0;
+ for (i = count-1; i >= 0; i--) {
+ /* is more than half of this entry in 2nd half of the block? */
+ if (size + map[i].size/2 > blocksize/2)
+ break;
+ size += map[i].size;
+ move++;
+ }
+ /* map index at which we will split */
+ split = count - move;
hash2 = map[split].hash;
continued = hash2 == map[split - 1].hash;
dxtrace(printk("Split block %i at %x, %i/%i\n",
* GRANTED_RES message by cookie, without having to rely on the client's IP
* address. --okir
*/
-static inline struct nlm_block *
-nlmsvc_create_block(struct svc_rqst *rqstp, struct nlm_file *file,
- struct nlm_lock *lock, struct nlm_cookie *cookie)
+static struct nlm_block *
+nlmsvc_create_block(struct svc_rqst *rqstp, struct nlm_host *host,
+ struct nlm_file *file, struct nlm_lock *lock,
+ struct nlm_cookie *cookie)
{
struct nlm_block *block;
- struct nlm_host *host;
struct nlm_rqst *call = NULL;
- /* Create host handle for callback */
- host = nlmsvc_lookup_host(rqstp, lock->caller, lock->len);
- if (host == NULL)
- return NULL;
-
call = nlm_alloc_call(host);
if (call == NULL)
return NULL;
struct nlm_lock *lock, int wait, struct nlm_cookie *cookie)
{
struct nlm_block *block = NULL;
+ struct nlm_host *host;
int error;
__be32 ret;
(long long)lock->fl.fl_end,
wait);
+ /* Create host handle for callback */
+ host = nlmsvc_lookup_host(rqstp, lock->caller, lock->len);
+ if (host == NULL)
+ return nlm_lck_denied_nolocks;
/* Lock file against concurrent access */
mutex_lock(&file->f_mutex);
*/
block = nlmsvc_lookup_block(file, lock);
if (block == NULL) {
- block = nlmsvc_create_block(rqstp, file, lock, cookie);
+ block = nlmsvc_create_block(rqstp, nlm_get_host(host), file,
+ lock, cookie);
ret = nlm_lck_denied_nolocks;
if (block == NULL)
goto out;
out:
mutex_unlock(&file->f_mutex);
nlmsvc_release_block(block);
+ nlm_release_host(host);
dprintk("lockd: nlmsvc_lock returned %u\n", ret);
return ret;
}
if (block == NULL) {
struct file_lock *conf = kzalloc(sizeof(*conf), GFP_KERNEL);
+ struct nlm_host *host;
if (conf == NULL)
return nlm_granted;
- block = nlmsvc_create_block(rqstp, file, lock, cookie);
+ /* Create host handle for callback */
+ host = nlmsvc_lookup_host(rqstp, lock->caller, lock->len);
+ if (host == NULL) {
+ kfree(conf);
+ return nlm_lck_denied_nolocks;
+ }
+ block = nlmsvc_create_block(rqstp, host, file, lock, cookie);
if (block == NULL) {
kfree(conf);
return nlm_granted;
server->namelen = data->namlen;
/* Create a client RPC handle for the NFSv3 ACL management interface */
nfs_init_server_aclclient(server);
- if (clp->cl_nfsversion == 3) {
- if (server->namelen == 0 || server->namelen > NFS3_MAXNAMLEN)
- server->namelen = NFS3_MAXNAMLEN;
- if (!(data->flags & NFS_MOUNT_NORDIRPLUS))
- server->caps |= NFS_CAP_READDIRPLUS;
- } else {
- if (server->namelen == 0 || server->namelen > NFS2_MAXNAMLEN)
- server->namelen = NFS2_MAXNAMLEN;
- }
-
dprintk("<-- nfs_init_server() = 0 [new %p]\n", clp);
return 0;
error = nfs_probe_fsinfo(server, mntfh, &fattr);
if (error < 0)
goto error;
+ if (server->nfs_client->rpc_ops->version == 3) {
+ if (server->namelen == 0 || server->namelen > NFS3_MAXNAMLEN)
+ server->namelen = NFS3_MAXNAMLEN;
+ if (!(data->flags & NFS_MOUNT_NORDIRPLUS))
+ server->caps |= NFS_CAP_READDIRPLUS;
+ } else {
+ if (server->namelen == 0 || server->namelen > NFS2_MAXNAMLEN)
+ server->namelen = NFS2_MAXNAMLEN;
+ }
+
if (!(fattr.valid & NFS_ATTR_FATTR)) {
error = server->nfs_client->rpc_ops->getattr(server, mntfh, &fattr);
if (error < 0) {
if (error < 0)
goto error;
+ if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
+ server->namelen = NFS4_MAXNAMLEN;
+
BUG_ON(!server->nfs_client);
BUG_ON(!server->nfs_client->rpc_ops);
BUG_ON(!server->nfs_client->rpc_ops->file_inode_ops);
if (error < 0)
goto error;
+ if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
+ server->namelen = NFS4_MAXNAMLEN;
+
dprintk("Referral FSID: %llx:%llx\n",
(unsigned long long) server->fsid.major,
(unsigned long long) server->fsid.minor);
if (error < 0)
goto out_free_server;
+ if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
+ server->namelen = NFS4_MAXNAMLEN;
+
dprintk("Cloned FSID: %llx:%llx\n",
(unsigned long long) server->fsid.major,
(unsigned long long) server->fsid.minor);
}
if (!desc->plus || !(entry->fattr->valid & NFS_ATTR_FATTR))
return NULL;
+ if (name.len > NFS_SERVER(dir)->namelen)
+ return NULL;
/* Note: caller is already holding the dir->i_mutex! */
dentry = d_alloc(parent, &name);
if (dentry == NULL)
path++;
name.len = path - (const char *) name.name;
+ if (name.len > NFS4_MAXNAMLEN)
+ return -ENAMETOOLONG;
+
eat_dot_dir:
while (*path == '/')
path++;
unregister_shrinker(&acl_shrinker);
#ifdef CONFIG_NFS_V4
unregister_filesystem(&nfs4_fs_type);
- nfs_unregister_sysctl();
#endif
+ nfs_unregister_sysctl();
unregister_filesystem(&nfs_fs_type);
}
loff_t user_pos, unsigned user_len)
{
int i;
- unsigned from, to;
+ unsigned from = user_pos & (PAGE_CACHE_SIZE - 1),
+ to = user_pos + user_len;
struct page *tmppage;
- ocfs2_zero_new_buffers(wc->w_target_page, user_pos, user_len);
-
- if (wc->w_large_pages) {
- from = wc->w_target_from;
- to = wc->w_target_to;
- } else {
- from = 0;
- to = PAGE_CACHE_SIZE;
- }
+ ocfs2_zero_new_buffers(wc->w_target_page, from, to);
for(i = 0; i < wc->w_num_pages; i++) {
tmppage = wc->w_pages[i];
map_from = cluster_start;
map_to = cluster_end;
}
-
- wc->w_target_from = map_from;
- wc->w_target_to = map_to;
} else {
/*
* If we haven't allocated the new page yet, we
loff_t pos, unsigned len)
{
int ret, i;
+ loff_t cluster_off;
+ unsigned int local_len = len;
struct ocfs2_write_cluster_desc *desc;
+ struct ocfs2_super *osb = OCFS2_SB(mapping->host->i_sb);
for (i = 0; i < wc->w_clen; i++) {
desc = &wc->w_desc[i];
+ /*
+ * We have to make sure that the total write passed in
+ * doesn't extend past a single cluster.
+ */
+ local_len = len;
+ cluster_off = pos & (osb->s_clustersize - 1);
+ if ((cluster_off + local_len) > osb->s_clustersize)
+ local_len = osb->s_clustersize - cluster_off;
+
ret = ocfs2_write_cluster(mapping, desc->c_phys,
desc->c_unwritten, data_ac, meta_ac,
- wc, desc->c_cpos, pos, len);
+ wc, desc->c_cpos, pos, local_len);
if (ret) {
mlog_errno(ret);
goto out;
}
+
+ len -= local_len;
+ pos += local_len;
}
ret = 0;
goto leave;
}
- status = ocfs2_claim_clusters(osb, handle, data_ac, 1,
- &bit_off, &num_bits);
+ status = __ocfs2_claim_clusters(osb, handle, data_ac, 1,
+ clusters_to_add, &bit_off, &num_bits);
if (status < 0) {
if (status != -ENOSPC)
mlog_errno(status);
ac->ac_bh = osb->local_alloc_bh;
status = 0;
bail:
- if (status < 0 && local_alloc_inode)
+ if (status < 0 && local_alloc_inode) {
+ mutex_unlock(&local_alloc_inode->i_mutex);
iput(local_alloc_inode);
+ }
mlog_exit(status);
return status;
int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb,
handle_t *handle,
struct ocfs2_alloc_context *ac,
- u32 min_bits,
+ u32 bits_wanted,
u32 *bit_off,
u32 *num_bits)
{
int status, start;
struct inode *local_alloc_inode;
- u32 bits_wanted;
void *bitmap;
struct ocfs2_dinode *alloc;
struct ocfs2_local_alloc *la;
mlog_entry_void();
BUG_ON(ac->ac_which != OCFS2_AC_USE_LOCAL);
- bits_wanted = ac->ac_bits_wanted - ac->ac_bits_given;
local_alloc_inode = ac->ac_inode;
alloc = (struct ocfs2_dinode *) osb->local_alloc_bh->b_data;
la = OCFS2_LOCAL_ALLOC(alloc);
int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb,
handle_t *handle,
struct ocfs2_alloc_context *ac,
- u32 min_bits,
+ u32 bits_wanted,
u32 *bit_off,
u32 *num_bits);
* contig. allocation, set to '1' to indicate we can deal with extents
* of any size.
*/
-int ocfs2_claim_clusters(struct ocfs2_super *osb,
- handle_t *handle,
- struct ocfs2_alloc_context *ac,
- u32 min_clusters,
- u32 *cluster_start,
- u32 *num_clusters)
+int __ocfs2_claim_clusters(struct ocfs2_super *osb,
+ handle_t *handle,
+ struct ocfs2_alloc_context *ac,
+ u32 min_clusters,
+ u32 max_clusters,
+ u32 *cluster_start,
+ u32 *num_clusters)
{
int status;
- unsigned int bits_wanted = ac->ac_bits_wanted - ac->ac_bits_given;
+ unsigned int bits_wanted = max_clusters;
u64 bg_blkno = 0;
u16 bg_bit_off;
mlog_entry_void();
- BUG_ON(!ac);
BUG_ON(ac->ac_bits_given >= ac->ac_bits_wanted);
BUG_ON(ac->ac_which != OCFS2_AC_USE_LOCAL
return status;
}
+int ocfs2_claim_clusters(struct ocfs2_super *osb,
+ handle_t *handle,
+ struct ocfs2_alloc_context *ac,
+ u32 min_clusters,
+ u32 *cluster_start,
+ u32 *num_clusters)
+{
+ unsigned int bits_wanted = ac->ac_bits_wanted - ac->ac_bits_given;
+
+ return __ocfs2_claim_clusters(osb, handle, ac, min_clusters,
+ bits_wanted, cluster_start, num_clusters);
+}
+
static inline int ocfs2_block_group_clear_bits(handle_t *handle,
struct inode *alloc_inode,
struct ocfs2_group_desc *bg,
u32 min_clusters,
u32 *cluster_start,
u32 *num_clusters);
+/*
+ * Use this variant of ocfs2_claim_clusters to specify a maxiumum
+ * number of clusters smaller than the allocation reserved.
+ */
+int __ocfs2_claim_clusters(struct ocfs2_super *osb,
+ handle_t *handle,
+ struct ocfs2_alloc_context *ac,
+ u32 min_clusters,
+ u32 max_clusters,
+ u32 *cluster_start,
+ u32 *num_clusters);
int ocfs2_free_suballoc_bits(handle_t *handle,
struct inode *alloc_inode,
{
struct ocfs2_msg_hdr v_hdr;
__be32 v_reserved1;
-};
+} __attribute__ ((packed));
/* Responses are given these values to maintain backwards
* compatibility with older ocfs2 versions */
{
struct ocfs2_msg_hdr r_hdr;
__be32 r_response;
-};
+} __attribute__ ((packed));
struct ocfs2_vote_work {
struct list_head w_list;
* Now using anonymous inode source.
* Thanks to Oleg Nesterov for useful code review and suggestions.
* More comments and suggestions from Arnd Bergmann.
- * Sat May 19, 2007: Davi E. M. Arnaut <davi@haxent.com.br>
+ * Sat May 19, 2007: Davi E. M. Arnaut <davi@haxent.com.br>
* Retrieve multiple signals with one read() call
+ * Sun Jul 15, 2007: Davide Libenzi <davidel@xmailserver.org>
+ * Attach to the sighand only during read() and poll().
*/
#include <linux/file.h>
#include <linux/signalfd.h>
struct signalfd_ctx {
- struct list_head lnk;
- wait_queue_head_t wqh;
sigset_t sigmask;
- struct task_struct *tsk;
};
-struct signalfd_lockctx {
- struct task_struct *tsk;
- unsigned long flags;
-};
-
-/*
- * Tries to acquire the sighand lock. We do not increment the sighand
- * use count, and we do not even pin the task struct, so we need to
- * do it inside an RCU read lock, and we must be prepared for the
- * ctx->tsk going to NULL (in signalfd_deliver()), and for the sighand
- * being detached. We return 0 if the sighand has been detached, or
- * 1 if we were able to pin the sighand lock.
- */
-static int signalfd_lock(struct signalfd_ctx *ctx, struct signalfd_lockctx *lk)
-{
- struct sighand_struct *sighand = NULL;
-
- rcu_read_lock();
- lk->tsk = rcu_dereference(ctx->tsk);
- if (likely(lk->tsk != NULL))
- sighand = lock_task_sighand(lk->tsk, &lk->flags);
- rcu_read_unlock();
-
- if (!sighand)
- return 0;
-
- if (!ctx->tsk) {
- unlock_task_sighand(lk->tsk, &lk->flags);
- return 0;
- }
-
- if (lk->tsk->tgid == current->tgid)
- lk->tsk = current;
-
- return 1;
-}
-
-static void signalfd_unlock(struct signalfd_lockctx *lk)
-{
- unlock_task_sighand(lk->tsk, &lk->flags);
-}
-
-/*
- * This must be called with the sighand lock held.
- */
-void signalfd_deliver(struct task_struct *tsk, int sig)
-{
- struct sighand_struct *sighand = tsk->sighand;
- struct signalfd_ctx *ctx, *tmp;
-
- BUG_ON(!sig);
- list_for_each_entry_safe(ctx, tmp, &sighand->signalfd_list, lnk) {
- /*
- * We use a negative signal value as a way to broadcast that the
- * sighand has been orphaned, so that we can notify all the
- * listeners about this. Remember the ctx->sigmask is inverted,
- * so if the user is interested in a signal, that corresponding
- * bit will be zero.
- */
- if (sig < 0) {
- if (ctx->tsk == tsk) {
- ctx->tsk = NULL;
- list_del_init(&ctx->lnk);
- wake_up(&ctx->wqh);
- }
- } else {
- if (!sigismember(&ctx->sigmask, sig))
- wake_up(&ctx->wqh);
- }
- }
-}
-
-static void signalfd_cleanup(struct signalfd_ctx *ctx)
-{
- struct signalfd_lockctx lk;
-
- /*
- * This is tricky. If the sighand is gone, we do not need to remove
- * context from the list, the list itself won't be there anymore.
- */
- if (signalfd_lock(ctx, &lk)) {
- list_del(&ctx->lnk);
- signalfd_unlock(&lk);
- }
- kfree(ctx);
-}
-
static int signalfd_release(struct inode *inode, struct file *file)
{
- signalfd_cleanup(file->private_data);
+ kfree(file->private_data);
return 0;
}
{
struct signalfd_ctx *ctx = file->private_data;
unsigned int events = 0;
- struct signalfd_lockctx lk;
- poll_wait(file, &ctx->wqh, wait);
+ poll_wait(file, ¤t->sighand->signalfd_wqh, wait);
- /*
- * Let the caller get a POLLIN in this case, ala socket recv() when
- * the peer disconnects.
- */
- if (signalfd_lock(ctx, &lk)) {
- if ((lk.tsk == current &&
- next_signal(&lk.tsk->pending, &ctx->sigmask) > 0) ||
- next_signal(&lk.tsk->signal->shared_pending,
- &ctx->sigmask) > 0)
- events |= POLLIN;
- signalfd_unlock(&lk);
- } else
+ spin_lock_irq(¤t->sighand->siglock);
+ if (next_signal(¤t->pending, &ctx->sigmask) ||
+ next_signal(¤t->signal->shared_pending,
+ &ctx->sigmask))
events |= POLLIN;
+ spin_unlock_irq(¤t->sighand->siglock);
return events;
}
int nonblock)
{
ssize_t ret;
- struct signalfd_lockctx lk;
DECLARE_WAITQUEUE(wait, current);
- if (!signalfd_lock(ctx, &lk))
- return 0;
-
- ret = dequeue_signal(lk.tsk, &ctx->sigmask, info);
+ spin_lock_irq(¤t->sighand->siglock);
+ ret = dequeue_signal(current, &ctx->sigmask, info);
switch (ret) {
case 0:
if (!nonblock)
break;
ret = -EAGAIN;
default:
- signalfd_unlock(&lk);
+ spin_unlock_irq(¤t->sighand->siglock);
return ret;
}
- add_wait_queue(&ctx->wqh, &wait);
+ add_wait_queue(¤t->sighand->signalfd_wqh, &wait);
for (;;) {
set_current_state(TASK_INTERRUPTIBLE);
- ret = dequeue_signal(lk.tsk, &ctx->sigmask, info);
- signalfd_unlock(&lk);
+ ret = dequeue_signal(current, &ctx->sigmask, info);
if (ret != 0)
break;
if (signal_pending(current)) {
ret = -ERESTARTSYS;
break;
}
+ spin_unlock_irq(¤t->sighand->siglock);
schedule();
- ret = signalfd_lock(ctx, &lk);
- if (unlikely(!ret)) {
- /*
- * Let the caller read zero byte, ala socket
- * recv() when the peer disconnect. This test
- * must be done before doing a dequeue_signal(),
- * because if the sighand has been orphaned,
- * the dequeue_signal() call is going to crash
- * because ->sighand will be long gone.
- */
- break;
- }
+ spin_lock_irq(¤t->sighand->siglock);
}
+ spin_unlock_irq(¤t->sighand->siglock);
- remove_wait_queue(&ctx->wqh, &wait);
+ remove_wait_queue(¤t->sighand->signalfd_wqh, &wait);
__set_current_state(TASK_RUNNING);
return ret;
}
/*
- * Returns either the size of a "struct signalfd_siginfo", or zero if the
- * sighand we are attached to, has been orphaned. The "count" parameter
- * must be at least the size of a "struct signalfd_siginfo".
+ * Returns a multiple of the size of a "struct signalfd_siginfo", or a negative
+ * error code. The "count" parameter must be at least the size of a
+ * "struct signalfd_siginfo".
*/
static ssize_t signalfd_read(struct file *file, char __user *buf, size_t count,
loff_t *ppos)
return -EINVAL;
siginfo = (struct signalfd_siginfo __user *) buf;
-
do {
ret = signalfd_dequeue(ctx, &info, nonblock);
if (unlikely(ret <= 0))
nonblock = 1;
} while (--count);
- return total ? total : ret;
+ return total ? total: ret;
}
static const struct file_operations signalfd_fops = {
.read = signalfd_read,
};
-/*
- * Create a file descriptor that is associated with our signal
- * state. We can pass it around to others if we want to, but
- * it will always be _our_ signal state.
- */
asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask)
{
int error;
sigset_t sigmask;
struct signalfd_ctx *ctx;
- struct sighand_struct *sighand;
struct file *file;
struct inode *inode;
- struct signalfd_lockctx lk;
if (sizemask != sizeof(sigset_t) ||
copy_from_user(&sigmask, user_mask, sizeof(sigmask)))
if (!ctx)
return -ENOMEM;
- init_waitqueue_head(&ctx->wqh);
ctx->sigmask = sigmask;
- ctx->tsk = current->group_leader;
-
- sighand = current->sighand;
- /*
- * Add this fd to the list of signal listeners.
- */
- spin_lock_irq(&sighand->siglock);
- list_add_tail(&ctx->lnk, &sighand->signalfd_list);
- spin_unlock_irq(&sighand->siglock);
/*
* When we call this, the initialization must be complete, since
fput(file);
return -EINVAL;
}
- /*
- * We need to be prepared of the fact that the sighand this fd
- * is attached to, has been detched. In that case signalfd_lock()
- * will return 0, and we'll just skip setting the new mask.
- */
- if (signalfd_lock(ctx, &lk)) {
- ctx->sigmask = sigmask;
- signalfd_unlock(&lk);
- }
- wake_up(&ctx->wqh);
+ spin_lock_irq(¤t->sighand->siglock);
+ ctx->sigmask = sigmask;
+ spin_unlock_irq(¤t->sighand->siglock);
+
+ wake_up(¤t->sighand->signalfd_wqh);
fput(file);
}
return ufd;
err_fdalloc:
- signalfd_cleanup(ctx);
+ kfree(ctx);
return error;
}
return -EINVAL;
}
+/*
+ * Do a copy-from-user while holding the mmap_semaphore for reading, in a
+ * manner safe from deadlocking with simultaneous mmap() (grabbing mmap_sem
+ * for writing) and page faulting on the user memory pointed to by src.
+ * This assumes that we will very rarely hit the partial != 0 path, or this
+ * will not be a win.
+ */
+static int copy_from_user_mmap_sem(void *dst, const void __user *src, size_t n)
+{
+ int partial;
+
+ pagefault_disable();
+ partial = __copy_from_user_inatomic(dst, src, n);
+ pagefault_enable();
+
+ /*
+ * Didn't copy everything, drop the mmap_sem and do a faulting copy
+ */
+ if (unlikely(partial)) {
+ up_read(¤t->mm->mmap_sem);
+ partial = copy_from_user(dst, src, n);
+ down_read(¤t->mm->mmap_sem);
+ }
+
+ return partial;
+}
+
/*
* Map an iov into an array of pages and offset/length tupples. With the
* partial_page structure, we can map several non-contiguous ranges into
{
int buffers = 0, error = 0;
- /*
- * It's ok to take the mmap_sem for reading, even
- * across a "get_user()".
- */
down_read(¤t->mm->mmap_sem);
while (nr_vecs) {
unsigned long off, npages;
+ struct iovec entry;
void __user *base;
size_t len;
int i;
- /*
- * Get user address base and length for this iovec.
- */
- error = get_user(base, &iov->iov_base);
- if (unlikely(error))
- break;
- error = get_user(len, &iov->iov_len);
- if (unlikely(error))
+ error = -EFAULT;
+ if (copy_from_user_mmap_sem(&entry, iov, sizeof(entry)))
break;
+ base = entry.iov_base;
+ len = entry.iov_len;
+
/*
* Sanity check this iovec. 0 read succeeds.
*/
+ error = 0;
if (unlikely(!len))
break;
error = -EFAULT;
goto again;
}
-
+ sbi->s_flags = flags;/*after that line some functions use s_flags*/
ufs_print_super_stuff(sb, usb1, usb2, usb3);
/*
UFS_MOUNT_UFSTYPE_44BSD)
uspi->s_maxsymlinklen =
fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen);
-
- sbi->s_flags = flags;
inode = iget(sb, UFS_ROOTINO);
if (!inode || is_bad_inode(inode))
ip->i_d.di_size = isize;
ip->i_update_core = 1;
ip->i_update_size = 1;
+ mark_inode_dirty_sync(vn_to_inode(ioend->io_vnode));
}
xfs_iunlock(ip, XFS_ILOCK_EXCL);
if (vp) {
vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
- if (sync)
+ if (sync) {
+ filemap_fdatawait(inode->i_mapping);
flags |= FLUSH_SYNC;
+ }
error = bhv_vop_iflush(vp, flags);
if (error == EAGAIN)
error = sync? bhv_vop_iflush(vp, flags | FLUSH_LOG) : 0;
/* xfs_fstrm_free_func(): callback for freeing cached stream items. */
void
xfs_fstrm_free_func(
- xfs_ino_t ino,
- fstrm_item_t *item)
+ unsigned long ino,
+ void *data)
{
+ fstrm_item_t *item = (fstrm_item_t *)data;
xfs_inode_t *ip = item->ip;
int ref;
grp_count = 10;
err = xfs_mru_cache_create(&mp->m_filestream, lifetime, grp_count,
- (xfs_mru_cache_free_func_t)xfs_fstrm_free_func);
+ xfs_fstrm_free_func);
return err;
}
xfs_filestream_flush(
xfs_mount_t *mp)
{
- /* point in time flush, so keep the reaper running */
- xfs_mru_cache_flush(mp->m_filestream, 1);
+ xfs_mru_cache_flush(mp->m_filestream);
}
/*
*/
if (!_xfs_mru_cache_migrate(mru, now)) {
mru->time_zero = now;
- if (!mru->next_reap)
- mru->next_reap = mru->grp_count * mru->grp_time;
+ if (!mru->queued) {
+ mru->queued = 1;
+ queue_delayed_work(xfs_mru_reap_wq, &mru->work,
+ mru->grp_count * mru->grp_time);
+ }
} else {
grp = (now - mru->time_zero) / mru->grp_time;
grp = (mru->lru_grp + grp) % mru->grp_count;
struct work_struct *work)
{
xfs_mru_cache_t *mru = container_of(work, xfs_mru_cache_t, work.work);
- unsigned long now;
+ unsigned long now, next;
ASSERT(mru && mru->lists);
if (!mru || !mru->lists)
return;
mutex_spinlock(&mru->lock);
- now = jiffies;
- if (mru->reap_all ||
- (mru->next_reap && time_after(now, mru->next_reap))) {
- if (mru->reap_all)
- now += mru->grp_count * mru->grp_time * 2;
- mru->next_reap = _xfs_mru_cache_migrate(mru, now);
- _xfs_mru_cache_clear_reap_list(mru);
+ next = _xfs_mru_cache_migrate(mru, jiffies);
+ _xfs_mru_cache_clear_reap_list(mru);
+
+ mru->queued = next;
+ if ((mru->queued > 0)) {
+ now = jiffies;
+ if (next <= now)
+ next = 0;
+ else
+ next -= now;
+ queue_delayed_work(xfs_mru_reap_wq, &mru->work, next);
}
- /*
- * the process that triggered the reap_all is responsible
- * for restating the periodic reap if it is required.
- */
- if (!mru->reap_all)
- queue_delayed_work(xfs_mru_reap_wq, &mru->work, mru->grp_time);
- mru->reap_all = 0;
mutex_spinunlock(&mru->lock, 0);
}
/* An extra list is needed to avoid reaping up to a grp_time early. */
mru->grp_count = grp_count + 1;
- mru->lists = kmem_alloc(mru->grp_count * sizeof(*mru->lists), KM_SLEEP);
+ mru->lists = kmem_zalloc(mru->grp_count * sizeof(*mru->lists), KM_SLEEP);
if (!mru->lists) {
err = ENOMEM;
mru->grp_time = grp_time;
mru->free_func = free_func;
- /* start up the reaper event */
- mru->next_reap = 0;
- mru->reap_all = 0;
- queue_delayed_work(xfs_mru_reap_wq, &mru->work, mru->grp_time);
-
*mrup = mru;
exit:
* Call xfs_mru_cache_flush() to flush out all cached entries, calling their
* free functions as they're deleted. When this function returns, the caller is
* guaranteed that all the free functions for all the elements have finished
- * executing.
- *
- * While we are flushing, we stop the periodic reaper event from triggering.
- * Normally, we want to restart this periodic event, but if we are shutting
- * down the cache we do not want it restarted. hence the restart parameter
- * where 0 = do not restart reaper and 1 = restart reaper.
+ * executing and the reaper is not running.
*/
void
xfs_mru_cache_flush(
- xfs_mru_cache_t *mru,
- int restart)
+ xfs_mru_cache_t *mru)
{
if (!mru || !mru->lists)
return;
- cancel_rearming_delayed_workqueue(xfs_mru_reap_wq, &mru->work);
-
mutex_spinlock(&mru->lock);
- mru->reap_all = 1;
- mutex_spinunlock(&mru->lock, 0);
+ if (mru->queued) {
+ mutex_spinunlock(&mru->lock, 0);
+ cancel_rearming_delayed_workqueue(xfs_mru_reap_wq, &mru->work);
+ mutex_spinlock(&mru->lock);
+ }
- queue_work(xfs_mru_reap_wq, &mru->work.work);
- flush_workqueue(xfs_mru_reap_wq);
+ _xfs_mru_cache_migrate(mru, jiffies + mru->grp_count * mru->grp_time);
+ _xfs_mru_cache_clear_reap_list(mru);
- mutex_spinlock(&mru->lock);
- WARN_ON_ONCE(mru->reap_all != 0);
- mru->reap_all = 0;
- if (restart)
- queue_delayed_work(xfs_mru_reap_wq, &mru->work, mru->grp_time);
mutex_spinunlock(&mru->lock, 0);
}
if (!mru || !mru->lists)
return;
- /* we don't want the reaper to restart here */
- xfs_mru_cache_flush(mru, 0);
+ xfs_mru_cache_flush(mru);
kmem_free(mru->lists, mru->grp_count * sizeof(*mru->lists));
kmem_free(mru, sizeof(*mru));
unsigned int grp_time; /* Time period spanned by grps. */
unsigned int lru_grp; /* Group containing time zero. */
unsigned long time_zero; /* Time first element was added. */
- unsigned long next_reap; /* Time that the reaper should
- next do something. */
- unsigned int reap_all; /* if set, reap all lists */
xfs_mru_cache_free_func_t free_func; /* Function pointer for freeing. */
struct delayed_work work; /* Workqueue data for reaping. */
+ unsigned int queued; /* work has been queued */
} xfs_mru_cache_t;
int xfs_mru_cache_init(void);
int xfs_mru_cache_create(struct xfs_mru_cache **mrup, unsigned int lifetime_ms,
unsigned int grp_count,
xfs_mru_cache_free_func_t free_func);
-void xfs_mru_cache_flush(xfs_mru_cache_t *mru, int restart);
+void xfs_mru_cache_flush(xfs_mru_cache_t *mru);
void xfs_mru_cache_destroy(struct xfs_mru_cache *mru);
int xfs_mru_cache_insert(struct xfs_mru_cache *mru, unsigned long key,
void *value);
if (XFS_FORCED_SHUTDOWN(ip->i_mount))
return XFS_ERROR(EIO);
+ if (flag & FSYNC_DATA)
+ filemap_fdatawait(vn_to_inode(XFS_ITOV(ip))->i_mapping);
+
/*
* We always need to make sure that the required inode state
* is safe on disk. The vnode might be clean but because
sync_lsn = log->l_last_sync_lsn;
GRANT_UNLOCK(log, s);
- if ((XFS_LSN_CMP(iip->ili_last_lsn, sync_lsn) <= 0))
- return 0;
+ if ((XFS_LSN_CMP(iip->ili_last_lsn, sync_lsn) > 0)) {
+ if (flags & FLUSH_SYNC)
+ log_flags |= XFS_LOG_SYNC;
+ error = xfs_log_force(mp, iip->ili_last_lsn, log_flags);
+ if (error)
+ return error;
+ }
- if (flags & FLUSH_SYNC)
- log_flags |= XFS_LOG_SYNC;
- return xfs_log_force(mp, iip->ili_last_lsn, log_flags);
+ if (ip->i_update_core == 0)
+ return 0;
}
}
if (flags & FLUSH_INODE) {
int flush_flags;
- if (xfs_ipincount(ip))
- return EAGAIN;
-
if (flags & FLUSH_SYNC) {
xfs_ilock(ip, XFS_ILOCK_SHARED);
xfs_iflock(ip);
/*--------------------------------------------------------------------------
Suspend/Resume
-------------------------------------------------------------------------- */
-#ifdef CONFIG_ACPI_SLEEP
extern int acpi_sleep_init(void);
-#else
-static inline int acpi_sleep_init(void) { return 0; }
-#endif
#endif /*__ACPI_DRIVERS_H__*/
int acpi_processor_cst_has_changed(struct acpi_processor *pr);
int acpi_processor_power_exit(struct acpi_processor *pr,
struct acpi_device *device);
+int acpi_processor_suspend(struct acpi_device * device, pm_message_t state);
+int acpi_processor_resume(struct acpi_device * device);
/* in processor_thermal.c */
int acpi_processor_get_limit_info(struct acpi_processor *pr);
#include <linux/serial.h>
#include <asm/dma.h>
+#include <asm/portmux.h>
#define NR_PORTS 1
}
};
+#define DRIVER_NAME "bfin-uart"
int nr_ports = NR_PORTS;
static void bfin_serial_hw_init(struct bfin_serial_port *uart)
{
+#ifdef CONFIG_SERIAL_BFIN_UART0
+ peripheral_request(P_UART0_TX, DRIVER_NAME);
+ peripheral_request(P_UART0_RX, DRIVER_NAME);
+#endif
+
#ifdef CONFIG_SERIAL_BFIN_CTSRTS
if (uart->cts_pin >= 0) {
- gpio_request(uart->cts_pin, NULL);
+ gpio_request(uart->cts_pin, DRIVER_NAME);
gpio_direction_input(uart->cts_pin);
}
if (uart->rts_pin >= 0) {
- gpio_request(uart->rts_pin, NULL);
+ gpio_request(uart->rts_pin, DRIVER_NAME);
gpio_direction_input(uart->rts_pin);
}
#endif
#include <linux/serial.h>
#include <asm/dma.h>
+#include <asm/portmux.h>
#define NR_PORTS 2
int nr_ports = ARRAY_SIZE(bfin_serial_resource);
+#define DRIVER_NAME "bfin-uart"
+
static void bfin_serial_hw_init(struct bfin_serial_port *uart)
{
- unsigned short val;
- val = bfin_read16(BFIN_PORT_MUX);
- val &= ~(PFDE | PFTE);
- bfin_write16(BFIN_PORT_MUX, val);
- val = bfin_read16(PORTF_FER);
- val |= 0xF;
- bfin_write16(PORTF_FER, val);
+#ifdef CONFIG_SERIAL_BFIN_UART0
+ peripheral_request(P_UART0_TX, DRIVER_NAME);
+ peripheral_request(P_UART0_RX, DRIVER_NAME);
+#endif
+
+#ifdef CONFIG_SERIAL_BFIN_UART1
+ peripheral_request(P_UART1_TX, DRIVER_NAME);
+ peripheral_request(P_UART1_RX, DRIVER_NAME);
+#endif
#ifdef CONFIG_SERIAL_BFIN_CTSRTS
if (uart->cts_pin >= 0) {
- gpio_request(uart->cts_pin, NULL);
+ gpio_request(uart->cts_pin, DRIVER_NAME);
gpio_direction_input(uart->cts_pin);
}
if (uart->rts_pin >= 0) {
- gpio_request(uart->rts_pin, NULL);
+ gpio_request(uart->rts_pin, DRIVER_NAME);
gpio_direction_output(uart->rts_pin);
}
#endif
#define P_SPI0_SSEL2 (P_DEFINED | P_IDENT(PORT_PJ11) | P_FUNCT(1))
#define P_SPI0_SSEL7 (P_DEFINED | P_IDENT(PORT_PJ5) | P_FUNCT(2))
-#endif /* _MACH_PORTMUX_H_ */
+#define P_MII0 {\
+ P_MII0_ETxD0, \
+ P_MII0_ETxD1, \
+ P_MII0_ETxD2, \
+ P_MII0_ETxD3, \
+ P_MII0_ETxEN, \
+ P_MII0_TxCLK, \
+ P_MII0_PHYINT, \
+ P_MII0_COL, \
+ P_MII0_ERxD0, \
+ P_MII0_ERxD1, \
+ P_MII0_ERxD2, \
+ P_MII0_ERxD3, \
+ P_MII0_ERxDV, \
+ P_MII0_ERxCLK, \
+ P_MII0_ERxER, \
+ P_MII0_CRS, \
+ P_MDC, \
+ P_MDIO, 0}
+
+
+#define P_RMII0 {\
+ P_MII0_ETxD0, \
+ P_MII0_ETxD1, \
+ P_MII0_ETxEN, \
+ P_MII0_ERxD0, \
+ P_MII0_ERxD1, \
+ P_MII0_ERxER, \
+ P_RMII0_REF_CLK, \
+ P_RMII0_MDINT, \
+ P_RMII0_CRS_DV, \
+ P_MDC, \
+ P_MDIO, 0}
+#endif /* _MACH_PORTMUX_H_ */
#include <linux/serial.h>
#include <asm/dma.h>
+#include <asm/portmux.h>
#define NR_PORTS 1
}
};
+#define DRIVER_NAME "bfin-uart"
int nr_ports = NR_PORTS;
static void bfin_serial_hw_init(struct bfin_serial_port *uart)
{
+#ifdef CONFIG_SERIAL_BFIN_UART0
+ peripheral_request(P_UART0_TX, DRIVER_NAME);
+ peripheral_request(P_UART0_RX, DRIVER_NAME);
+#endif
+
#ifdef CONFIG_SERIAL_BFIN_CTSRTS
if (uart->cts_pin >= 0) {
- gpio_request(uart->cts_pin, NULL);
+ gpio_request(uart->cts_pin, DRIVER_NAME);
gpio_direction_input(uart->cts_pin);
}
if (uart->rts_pin >= 0) {
- gpio_request(uart->rts_pin, NULL);
+ gpio_request(uart->rts_pin, DRIVER_NAME);
gpio_direction_input(uart->rts_pin);
}
#endif
#define P_MAYSHARE 0x2000
#define P_DONTCARE 0x1000
+
+int peripheral_request(unsigned short per, const char *label);
+void peripheral_free(unsigned short per);
+int peripheral_request_list(unsigned short per[], const char *label);
+void peripheral_free_list(unsigned short per[]);
+
#include <asm/gpio.h>
#include <asm/mach/portmux.h>
#define P_SPI2_SSEL3 P_UNDEF
#endif
+#ifndef P_SPI2_SSEL4
+#define P_SPI2_SSEL4 P_UNDEF
+#endif
+
+#ifndef P_SPI2_SSEL5
+#define P_SPI2_SSEL5 P_UNDEF
+#endif
+
+#ifndef P_SPI2_SSEL6
+#define P_SPI2_SSEL6 P_UNDEF
+#endif
+
+#ifndef P_SPI2_SSEL7
+#define P_SPI2_SSEL7 P_UNDEF
+#endif
+
#ifndef P_SPI2_SCK
#define P_SPI2_SCK P_UNDEF
#endif
#define P_SPI0_SSEL3 P_UNDEF
#endif
+#ifndef P_SPI0_SSEL4
+#define P_SPI0_SSEL4 P_UNDEF
+#endif
+
+#ifndef P_SPI0_SSEL5
+#define P_SPI0_SSEL5 P_UNDEF
+#endif
+
+#ifndef P_SPI0_SSEL6
+#define P_SPI0_SSEL6 P_UNDEF
+#endif
+
+#ifndef P_SPI0_SSEL7
+#define P_SPI0_SSEL7 P_UNDEF
+#endif
+
#ifndef P_UART0_TX
#define P_UART0_TX P_UNDEF
#endif
#define P_SPI1_SSEL3 P_UNDEF
#endif
+
+#ifndef P_SPI1_SSEL4
+#define P_SPI1_SSEL4 P_UNDEF
+#endif
+
+#ifndef P_SPI1_SSEL5
+#define P_SPI1_SSEL5 P_UNDEF
+#endif
+
+#ifndef P_SPI1_SSEL6
+#define P_SPI1_SSEL6 P_UNDEF
+#endif
+
+#ifndef P_SPI1_SSEL7
+#define P_SPI1_SSEL7 P_UNDEF
+#endif
+
#ifndef P_SPI1_SCK
#define P_SPI1_SCK P_UNDEF
#endif
/*
* This file contains the system call numbers.
*/
+#define __NR_restart_syscall 0
#define __NR_exit 1
#define __NR_fork 2
#define __NR_read 3
#define __NR_sched_get_priority_min 160
#define __NR_sched_rr_get_interval 161
#define __NR_nanosleep 162
- /* 163 __NR_mremap */
+#define __NR_mremap 163
#define __NR_setresuid 164
#define __NR_getresuid 165
/* 166 __NR_vm86 */
/* 167 __NR_query_module */
/* 168 __NR_poll */
- /* 169 __NR_nfsservctl */
+#define __NR_nfsservctl 169
#define __NR_setresgid 170
#define __NR_getresgid 171
#define __NR_prctl 172
/* 222 reserved for TUX */
/* 223 reserved for TUX */
#define __NR_gettid 224
- /* 225 __NR_readahead */
+#define __NR_readahead 225
#define __NR_setxattr 226
#define __NR_lsetxattr 227
#define __NR_fsetxattr 228
#define __NR_mq_timedreceive (__NR_mq_open+3)
#define __NR_mq_notify (__NR_mq_open+4)
#define __NR_mq_getsetattr (__NR_mq_open+5)
- /* 284 __NR_sys_kexec_load */
+#define __NR_kexec_load 284
#define __NR_waitid 285
#define __NR_add_key 286
#define __NR_request_key 287
#define __NR_shmdt 340
#define __NR_shmget 341
-#define __NR_syscall 342
+#define __NR_splice 342
+#define __NR_sync_file_range 343
+#define __NR_tee 344
+#define __NR_vmsplice 345
+
+#define __NR_epoll_pwait 346
+#define __NR_utimensat 347
+#define __NR_signalfd 348
+#define __NR_timerfd 349
+#define __NR_eventfd 350
+#define __NR_pread64 351
+#define __NR_pwrite64 352
+#define __NR_fadvise64 353
+#define __NR_set_robust_list 354
+#define __NR_get_robust_list 355
+#define __NR_fallocate 356
+
+#define __NR_syscall 357
#define NR_syscalls __NR_syscall
+/* Old optional stuff no one actually uses */
+#define __IGNORE_sysfs
+#define __IGNORE_uselib
+
+/* Implement the newer interfaces */
+#define __IGNORE_mmap
+#define __IGNORE_poll
+#define __IGNORE_select
+#define __IGNORE_utime
+
+/* Not relevant on no-mmu */
+#define __IGNORE_swapon
+#define __IGNORE_swapoff
+#define __IGNORE_msync
+#define __IGNORE_mlock
+#define __IGNORE_munlock
+#define __IGNORE_mlockall
+#define __IGNORE_munlockall
+#define __IGNORE_mincore
+#define __IGNORE_madvise
+#define __IGNORE_remap_file_pages
+#define __IGNORE_mbind
+#define __IGNORE_get_mempolicy
+#define __IGNORE_set_mempolicy
+#define __IGNORE_migrate_pages
+#define __IGNORE_move_pages
+#define __IGNORE_getcpu
+
#ifdef __KERNEL__
#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_STAT64
#define flat_argvp_envp_on_stack() 1
#define flat_old_ram_flag(flags) 1
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
+#define flat_set_persistent(relval, p) 0
/*
* on the H8 a couple of the relocations have an instruction in the
*/
#define flat_get_relocate_addr(rel) (rel)
-#define flat_get_addr_from_rp(rp, relval, flags) \
+#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
(get_unaligned(rp) & ((flags & FLAT_FLAG_GOTPIC) ? 0xffffffff: 0x00ffffff))
#define flat_put_addr_at_rp(rp, addr, rel) \
put_unaligned (((*(char *)(rp)) << 24) | ((addr) & 0x00ffffff), rp)
*/
-/*
- * Actually only lfence would be needed for mb() because all stores done
- * by the kernel should be already ordered. But keep a full barrier for now.
- */
-
#define mb() alternative("lock; addl $0,0(%%esp)", "mfence", X86_FEATURE_XMM2)
#define rmb() alternative("lock; addl $0,0(%%esp)", "lfence", X86_FEATURE_XMM2)
#define flat_stack_align(sp) (*sp += (*sp & 3 ? (4 - (*sp & 3)): 0))
#define flat_argvp_envp_on_stack() 0
#define flat_old_ram_flag(flags) (flags)
+#define flat_set_persistent(relval, p) 0
#define flat_reloc_valid(reloc, size) \
(((reloc) - textlen_for_m32r_lo16_data) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags) \
+#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
m32r_flat_get_addr_from_rp(rp, relval, (text_len) )
#define flat_put_addr_at_rp(rp, addr, relval) \
#define flat_argvp_envp_on_stack() 1
#define flat_old_ram_flag(flags) (flags)
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags) get_unaligned(rp)
+#define flat_get_addr_from_rp(rp, relval, flags, p) get_unaligned(rp)
#define flat_put_addr_at_rp(rp, val, relval) put_unaligned(val,rp)
#define flat_get_relocate_addr(rel) (rel)
+#define flat_set_persistent(relval, p) 0
#endif /* __M68KNOMMU_FLAT_H__ */
--- /dev/null
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003, 06, 07 by Ralf Baechle (ralf@linux-mips.org)
+ */
+#ifndef __ASM_CMPXCHG_H
+#define __ASM_CMPXCHG_H
+
+#include <linux/irqflags.h>
+
+#define __HAVE_ARCH_CMPXCHG 1
+
+#define __cmpxchg_asm(ld, st, m, old, new) \
+({ \
+ __typeof(*(m)) __ret; \
+ \
+ if (cpu_has_llsc && R10000_LLSC_WAR) { \
+ __asm__ __volatile__( \
+ " .set push \n" \
+ " .set noat \n" \
+ " .set mips3 \n" \
+ "1: " ld " %0, %2 # __cmpxchg_asm \n" \
+ " bne %0, %z3, 2f \n" \
+ " .set mips0 \n" \
+ " move $1, %z4 \n" \
+ " .set mips3 \n" \
+ " " st " $1, %1 \n" \
+ " beqzl $1, 1b \n" \
+ "2: \n" \
+ " .set pop \n" \
+ : "=&r" (__ret), "=R" (*m) \
+ : "R" (*m), "Jr" (old), "Jr" (new) \
+ : "memory"); \
+ } else if (cpu_has_llsc) { \
+ __asm__ __volatile__( \
+ " .set push \n" \
+ " .set noat \n" \
+ " .set mips3 \n" \
+ "1: " ld " %0, %2 # __cmpxchg_asm \n" \
+ " bne %0, %z3, 2f \n" \
+ " .set mips0 \n" \
+ " move $1, %z4 \n" \
+ " .set mips3 \n" \
+ " " st " $1, %1 \n" \
+ " beqz $1, 3f \n" \
+ "2: \n" \
+ " .subsection 2 \n" \
+ "3: b 1b \n" \
+ " .previous \n" \
+ " .set pop \n" \
+ : "=&r" (__ret), "=R" (*m) \
+ : "R" (*m), "Jr" (old), "Jr" (new) \
+ : "memory"); \
+ } else { \
+ unsigned long __flags; \
+ \
+ raw_local_irq_save(__flags); \
+ __ret = *m; \
+ if (__ret == old) \
+ *m = new; \
+ raw_local_irq_restore(__flags); \
+ } \
+ \
+ __ret; \
+})
+
+/*
+ * This function doesn't exist, so you'll get a linker error
+ * if something tries to do an invalid cmpxchg().
+ */
+extern void __cmpxchg_called_with_bad_pointer(void);
+
+#define __cmpxchg(ptr,old,new,barrier) \
+({ \
+ __typeof__(ptr) __ptr = (ptr); \
+ __typeof__(*(ptr)) __old = (old); \
+ __typeof__(*(ptr)) __new = (new); \
+ __typeof__(*(ptr)) __res = 0; \
+ \
+ barrier; \
+ \
+ switch (sizeof(*(__ptr))) { \
+ case 4: \
+ __res = __cmpxchg_asm("ll", "sc", __ptr, __old, __new); \
+ break; \
+ case 8: \
+ if (sizeof(long) == 8) { \
+ __res = __cmpxchg_asm("lld", "scd", __ptr, \
+ __old, __new); \
+ break; \
+ } \
+ default: \
+ __cmpxchg_called_with_bad_pointer(); \
+ break; \
+ } \
+ \
+ barrier; \
+ \
+ __res; \
+})
+
+#define cmpxchg(ptr, old, new) __cmpxchg(ptr, old, new, smp_llsc_mb())
+#define cmpxchg_local(ptr, old, new) __cmpxchg(ptr, old, new,)
+
+#endif /* __ASM_CMPXCHG_H */
/*
- * Copyright (C) 2004 Maciej W. Rozycki
+ * Copyright (C) 2004, 2007 Maciej W. Rozycki
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
#define _ASM_COMPILER_H
#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
+#define GCC_IMM_ASM "n"
#define GCC_REG_ACCUM "$0"
#else
+#define GCC_IMM_ASM "rn"
#define GCC_REG_ACCUM "accum"
#endif
#define O_SYNC 0x0010
#define O_NONBLOCK 0x0080
#define O_CREAT 0x0100 /* not fcntl */
+#define O_TRUNC 0x0200 /* not fcntl */
#define O_EXCL 0x0400 /* not fcntl */
#define O_NOCTTY 0x0800 /* not fcntl */
#define FASYNC 0x1000 /* fcntl, for BSD compatibility */
#define irq_canonicalize(irq) (irq) /* Sane hardware, sane code ... */
#endif
+#ifdef CONFIG_MIPS_MT_SMTC
+
+struct irqaction;
+
+extern unsigned long irq_hwmask[];
+extern int setup_irq_smtc(unsigned int irq, struct irqaction * new,
+ unsigned long hwmask);
+
+static inline void smtc_im_ack_irq(unsigned int irq)
+{
+ if (irq_hwmask[irq] & ST0_IM)
+ set_c0_status(irq_hwmask[irq] & ST0_IM);
+}
+
+#else
+
+static inline void smtc_im_ack_irq(unsigned int irq)
+{
+}
+
+#endif /* CONFIG_MIPS_MT_SMTC */
+
#ifdef CONFIG_MIPS_MT_SMTC_IM_BACKSTOP
+
/*
* Clear interrupt mask handling "backstop" if irq_hwmask
* entry so indicates. This implies that the ack() or end()
~(irq_hwmask[irq] & 0x0000ff00)); \
} while (0)
#else
+
#define __DO_IRQ_SMTC_HOOK(irq) do { } while (0)
#endif
extern void arch_init_irq(void);
extern void spurious_interrupt(void);
-#ifdef CONFIG_MIPS_MT_SMTC
-struct irqaction;
-
-extern unsigned long irq_hwmask[];
-extern int setup_irq_smtc(unsigned int irq, struct irqaction * new,
- unsigned long hwmask);
-#endif /* CONFIG_MIPS_MT_SMTC */
-
extern int allocate_irqno(void);
extern void alloc_legacy_irqno(void);
extern void free_irqno(unsigned int irq);
#include <linux/percpu.h>
#include <linux/bitops.h>
#include <asm/atomic.h>
+#include <asm/cmpxchg.h>
#include <asm/war.h>
typedef struct
return result;
}
-/*
- * local_sub_if_positive - conditionally subtract integer from atomic variable
- * @i: integer value to subtract
- * @l: pointer of type local_t
- *
- * Atomically test @l and subtract @i if @l is greater or equal than @i.
- * The function returns the old value of @l minus @i.
- */
-static __inline__ long local_sub_if_positive(long i, local_t * l)
-{
- unsigned long result;
-
- if (cpu_has_llsc && R10000_LLSC_WAR) {
- unsigned long temp;
-
- __asm__ __volatile__(
- " .set mips3 \n"
- "1:" __LL "%1, %2 # local_sub_if_positive\n"
- " dsubu %0, %1, %3 \n"
- " bltz %0, 1f \n"
- __SC "%0, %2 \n"
- " .set noreorder \n"
- " beqzl %0, 1b \n"
- " dsubu %0, %1, %3 \n"
- " .set reorder \n"
- "1: \n"
- " .set mips0 \n"
- : "=&r" (result), "=&r" (temp), "=m" (l->a.counter)
- : "Ir" (i), "m" (l->a.counter)
- : "memory");
- } else if (cpu_has_llsc) {
- unsigned long temp;
-
- __asm__ __volatile__(
- " .set mips3 \n"
- "1:" __LL "%1, %2 # local_sub_if_positive\n"
- " dsubu %0, %1, %3 \n"
- " bltz %0, 1f \n"
- __SC "%0, %2 \n"
- " .set noreorder \n"
- " beqz %0, 1b \n"
- " dsubu %0, %1, %3 \n"
- " .set reorder \n"
- "1: \n"
- " .set mips0 \n"
- : "=&r" (result), "=&r" (temp), "=m" (l->a.counter)
- : "Ir" (i), "m" (l->a.counter)
- : "memory");
- } else {
- unsigned long flags;
-
- local_irq_save(flags);
- result = l->a.counter;
- result -= i;
- if (result >= 0)
- l->a.counter = result;
- local_irq_restore(flags);
- }
-
- return result;
-}
-
#define local_cmpxchg(l, o, n) \
((long)cmpxchg_local(&((l)->a.counter), (o), (n)))
#define local_xchg(l, n) (xchg_local(&((l)->a.counter),(n)))
*/
#define local_dec_and_test(l) (local_sub_return(1, (l)) == 0)
-/*
- * local_dec_if_positive - decrement by 1 if old value positive
- * @l: pointer of type local_t
- */
-#define local_dec_if_positive(l) local_sub_if_positive(1, l)
-
/*
* local_add_negative - add and test if negative
* @l: pointer of type local_t
/*
* __pa()/__va() should be used only during mem init.
*/
-#if defined(CONFIG_64BIT) && !defined(CONFIG_BUILD_ELF64)
+#ifdef CONFIG_64BIT
#define __pa(x) \
({ \
unsigned long __x = (unsigned long)(x); \
#include <asm/addrspace.h>
#include <asm/barrier.h>
+#include <asm/cmpxchg.h>
#include <asm/cpu-features.h>
#include <asm/dsp.h>
#include <asm/war.h>
#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
-#define __HAVE_ARCH_CMPXCHG 1
-
-static inline unsigned long __cmpxchg_u32(volatile int * m, unsigned long old,
- unsigned long new)
-{
- __u32 retval;
-
- if (cpu_has_llsc && R10000_LLSC_WAR) {
- __asm__ __volatile__(
- " .set push \n"
- " .set noat \n"
- " .set mips3 \n"
- "1: ll %0, %2 # __cmpxchg_u32 \n"
- " bne %0, %z3, 2f \n"
- " .set mips0 \n"
- " move $1, %z4 \n"
- " .set mips3 \n"
- " sc $1, %1 \n"
- " beqzl $1, 1b \n"
- "2: \n"
- " .set pop \n"
- : "=&r" (retval), "=R" (*m)
- : "R" (*m), "Jr" (old), "Jr" (new)
- : "memory");
- } else if (cpu_has_llsc) {
- __asm__ __volatile__(
- " .set push \n"
- " .set noat \n"
- " .set mips3 \n"
- "1: ll %0, %2 # __cmpxchg_u32 \n"
- " bne %0, %z3, 2f \n"
- " .set mips0 \n"
- " move $1, %z4 \n"
- " .set mips3 \n"
- " sc $1, %1 \n"
- " beqz $1, 3f \n"
- "2: \n"
- " .subsection 2 \n"
- "3: b 1b \n"
- " .previous \n"
- " .set pop \n"
- : "=&r" (retval), "=R" (*m)
- : "R" (*m), "Jr" (old), "Jr" (new)
- : "memory");
- } else {
- unsigned long flags;
-
- raw_local_irq_save(flags);
- retval = *m;
- if (retval == old)
- *m = new;
- raw_local_irq_restore(flags); /* implies memory barrier */
- }
-
- smp_llsc_mb();
-
- return retval;
-}
-
-static inline unsigned long __cmpxchg_u32_local(volatile int * m,
- unsigned long old, unsigned long new)
-{
- __u32 retval;
-
- if (cpu_has_llsc && R10000_LLSC_WAR) {
- __asm__ __volatile__(
- " .set push \n"
- " .set noat \n"
- " .set mips3 \n"
- "1: ll %0, %2 # __cmpxchg_u32 \n"
- " bne %0, %z3, 2f \n"
- " .set mips0 \n"
- " move $1, %z4 \n"
- " .set mips3 \n"
- " sc $1, %1 \n"
- " beqzl $1, 1b \n"
- "2: \n"
- " .set pop \n"
- : "=&r" (retval), "=R" (*m)
- : "R" (*m), "Jr" (old), "Jr" (new)
- : "memory");
- } else if (cpu_has_llsc) {
- __asm__ __volatile__(
- " .set push \n"
- " .set noat \n"
- " .set mips3 \n"
- "1: ll %0, %2 # __cmpxchg_u32 \n"
- " bne %0, %z3, 2f \n"
- " .set mips0 \n"
- " move $1, %z4 \n"
- " .set mips3 \n"
- " sc $1, %1 \n"
- " beqz $1, 1b \n"
- "2: \n"
- " .set pop \n"
- : "=&r" (retval), "=R" (*m)
- : "R" (*m), "Jr" (old), "Jr" (new)
- : "memory");
- } else {
- unsigned long flags;
-
- local_irq_save(flags);
- retval = *m;
- if (retval == old)
- *m = new;
- local_irq_restore(flags); /* implies memory barrier */
- }
-
- return retval;
-}
-
-#ifdef CONFIG_64BIT
-static inline unsigned long __cmpxchg_u64(volatile int * m, unsigned long old,
- unsigned long new)
-{
- __u64 retval;
-
- if (cpu_has_llsc && R10000_LLSC_WAR) {
- __asm__ __volatile__(
- " .set push \n"
- " .set noat \n"
- " .set mips3 \n"
- "1: lld %0, %2 # __cmpxchg_u64 \n"
- " bne %0, %z3, 2f \n"
- " move $1, %z4 \n"
- " scd $1, %1 \n"
- " beqzl $1, 1b \n"
- "2: \n"
- " .set pop \n"
- : "=&r" (retval), "=R" (*m)
- : "R" (*m), "Jr" (old), "Jr" (new)
- : "memory");
- } else if (cpu_has_llsc) {
- __asm__ __volatile__(
- " .set push \n"
- " .set noat \n"
- " .set mips3 \n"
- "1: lld %0, %2 # __cmpxchg_u64 \n"
- " bne %0, %z3, 2f \n"
- " move $1, %z4 \n"
- " scd $1, %1 \n"
- " beqz $1, 3f \n"
- "2: \n"
- " .subsection 2 \n"
- "3: b 1b \n"
- " .previous \n"
- " .set pop \n"
- : "=&r" (retval), "=R" (*m)
- : "R" (*m), "Jr" (old), "Jr" (new)
- : "memory");
- } else {
- unsigned long flags;
-
- raw_local_irq_save(flags);
- retval = *m;
- if (retval == old)
- *m = new;
- raw_local_irq_restore(flags); /* implies memory barrier */
- }
-
- smp_llsc_mb();
-
- return retval;
-}
-
-static inline unsigned long __cmpxchg_u64_local(volatile int * m,
- unsigned long old, unsigned long new)
-{
- __u64 retval;
-
- if (cpu_has_llsc && R10000_LLSC_WAR) {
- __asm__ __volatile__(
- " .set push \n"
- " .set noat \n"
- " .set mips3 \n"
- "1: lld %0, %2 # __cmpxchg_u64 \n"
- " bne %0, %z3, 2f \n"
- " move $1, %z4 \n"
- " scd $1, %1 \n"
- " beqzl $1, 1b \n"
- "2: \n"
- " .set pop \n"
- : "=&r" (retval), "=R" (*m)
- : "R" (*m), "Jr" (old), "Jr" (new)
- : "memory");
- } else if (cpu_has_llsc) {
- __asm__ __volatile__(
- " .set push \n"
- " .set noat \n"
- " .set mips3 \n"
- "1: lld %0, %2 # __cmpxchg_u64 \n"
- " bne %0, %z3, 2f \n"
- " move $1, %z4 \n"
- " scd $1, %1 \n"
- " beqz $1, 1b \n"
- "2: \n"
- " .set pop \n"
- : "=&r" (retval), "=R" (*m)
- : "R" (*m), "Jr" (old), "Jr" (new)
- : "memory");
- } else {
- unsigned long flags;
-
- local_irq_save(flags);
- retval = *m;
- if (retval == old)
- *m = new;
- local_irq_restore(flags); /* implies memory barrier */
- }
-
- return retval;
-}
-
-#else
-extern unsigned long __cmpxchg_u64_unsupported_on_32bit_kernels(
- volatile int * m, unsigned long old, unsigned long new);
-#define __cmpxchg_u64 __cmpxchg_u64_unsupported_on_32bit_kernels
-extern unsigned long __cmpxchg_u64_local_unsupported_on_32bit_kernels(
- volatile int * m, unsigned long old, unsigned long new);
-#define __cmpxchg_u64_local __cmpxchg_u64_local_unsupported_on_32bit_kernels
-#endif
-
-/* This function doesn't exist, so you'll get a linker error
- if something tries to do an invalid cmpxchg(). */
-extern void __cmpxchg_called_with_bad_pointer(void);
-
-static inline unsigned long __cmpxchg(volatile void * ptr, unsigned long old,
- unsigned long new, int size)
-{
- switch (size) {
- case 4:
- return __cmpxchg_u32(ptr, old, new);
- case 8:
- return __cmpxchg_u64(ptr, old, new);
- }
- __cmpxchg_called_with_bad_pointer();
- return old;
-}
-
-static inline unsigned long __cmpxchg_local(volatile void * ptr,
- unsigned long old, unsigned long new, int size)
-{
- switch (size) {
- case 4:
- return __cmpxchg_u32_local(ptr, old, new);
- case 8:
- return __cmpxchg_u64_local(ptr, old, new);
- }
- __cmpxchg_called_with_bad_pointer();
- return old;
-}
-
-#define cmpxchg(ptr,old,new) \
- ((__typeof__(*(ptr)))__cmpxchg((ptr), \
- (unsigned long)(old), (unsigned long)(new),sizeof(*(ptr))))
-
-#define cmpxchg_local(ptr,old,new) \
- ((__typeof__(*(ptr)))__cmpxchg_local((ptr), \
- (unsigned long)(old), (unsigned long)(new),sizeof(*(ptr))))
-
extern void set_handler (unsigned long offset, void *addr, unsigned long len);
extern void set_uncached_handler (unsigned long offset, void *addr, unsigned long len);
}
#endif /* !CONFIG_PPC64 */
+static inline u64 get_tb_or_rtc(void)
+{
+ return __USE_RTC() ? get_rtc() : get_tb();
+}
+
static inline void set_tb(unsigned int upper, unsigned int lower)
{
mtspr(SPRN_TBWL, 0);
#define flat_argvp_envp_on_stack() 0
#define flat_old_ram_flag(flags) (flags)
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags) get_unaligned(rp)
+#define flat_get_addr_from_rp(rp, relval, flags, p) get_unaligned(rp)
#define flat_put_addr_at_rp(rp, val, relval) put_unaligned(val,rp)
#define flat_get_relocate_addr(rel) (rel)
+#define flat_set_persistent(relval, p) 0
#endif /* __ASM_SH_FLAT_H */
#define flat_stack_align(sp) /* nothing needed */
#define flat_argvp_envp_on_stack() 0
#define flat_old_ram_flag(flags) (flags)
+#define flat_set_persistent(relval, p) 0
/* We store the type of relocation in the top 4 bits of the `relval.' */
For the v850, RP should always be half-word aligned. */
static inline unsigned long flat_get_addr_from_rp (unsigned long *rp,
unsigned long relval,
- unsigned long flags)
+ unsigned long flags,
+ unsigned long *persistent)
{
short *srp = (short *)rp;
#include <asm/pda.h>
#include <linux/threads.h>
#include <linux/mm.h>
-#include <linux/quicklist.h>
-
-#define QUICK_PGD 0 /* We preserve special mappings over free */
-#define QUICK_PT 1 /* Other page table pages that are zero on free */
#define pmd_populate_kernel(mm, pmd, pte) \
set_pmd(pmd, __pmd(_PAGE_TABLE | __pa(pte)))
static inline void pmd_free(pmd_t *pmd)
{
BUG_ON((unsigned long)pmd & (PAGE_SIZE-1));
- quicklist_free(QUICK_PT, NULL, pmd);
+ free_page((unsigned long)pmd);
}
static inline pmd_t *pmd_alloc_one (struct mm_struct *mm, unsigned long addr)
{
- return (pmd_t *)quicklist_alloc(QUICK_PT, GFP_KERNEL|__GFP_REPEAT, NULL);
+ return (pmd_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
}
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
{
- return (pud_t *)quicklist_alloc(QUICK_PT, GFP_KERNEL|__GFP_REPEAT, NULL);
+ return (pud_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
}
static inline void pud_free (pud_t *pud)
{
BUG_ON((unsigned long)pud & (PAGE_SIZE-1));
- quicklist_free(QUICK_PT, NULL, pud);
+ free_page((unsigned long)pud);
}
static inline void pgd_list_add(pgd_t *pgd)
spin_unlock(&pgd_lock);
}
-static inline void pgd_ctor(void *x)
+static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
unsigned boundary;
- pgd_t *pgd = x;
- struct page *page = virt_to_page(pgd);
-
+ pgd_t *pgd = (pgd_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT);
+ if (!pgd)
+ return NULL;
+ pgd_list_add(pgd);
/*
* Copy kernel pointers in from init.
+ * Could keep a freelist or slab cache of those because the kernel
+ * part never changes.
*/
boundary = pgd_index(__PAGE_OFFSET);
+ memset(pgd, 0, boundary * sizeof(pgd_t));
memcpy(pgd + boundary,
- init_level4_pgt + boundary,
- (PTRS_PER_PGD - boundary) * sizeof(pgd_t));
-
- spin_lock(&pgd_lock);
- list_add(&page->lru, &pgd_list);
- spin_unlock(&pgd_lock);
-}
-
-static inline void pgd_dtor(void *x)
-{
- pgd_t *pgd = x;
- struct page *page = virt_to_page(pgd);
-
- spin_lock(&pgd_lock);
- list_del(&page->lru);
- spin_unlock(&pgd_lock);
-}
-
-static inline pgd_t *pgd_alloc(struct mm_struct *mm)
-{
- pgd_t *pgd = (pgd_t *)quicklist_alloc(QUICK_PGD,
- GFP_KERNEL|__GFP_REPEAT, pgd_ctor);
+ init_level4_pgt + boundary,
+ (PTRS_PER_PGD - boundary) * sizeof(pgd_t));
return pgd;
}
static inline void pgd_free(pgd_t *pgd)
{
BUG_ON((unsigned long)pgd & (PAGE_SIZE-1));
- quicklist_free(QUICK_PGD, pgd_dtor, pgd);
+ pgd_list_del(pgd);
+ free_page((unsigned long)pgd);
}
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
{
- return (pte_t *)quicklist_alloc(QUICK_PT, GFP_KERNEL|__GFP_REPEAT, NULL);
+ return (pte_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
}
static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
{
- void *p = (void *)quicklist_alloc(QUICK_PT, GFP_KERNEL|__GFP_REPEAT, NULL);
-
+ void *p = (void *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
if (!p)
return NULL;
return virt_to_page(p);
static inline void pte_free_kernel(pte_t *pte)
{
BUG_ON((unsigned long)pte & (PAGE_SIZE-1));
- quicklist_free(QUICK_PT, NULL, pte);
+ free_page((unsigned long)pte);
}
static inline void pte_free(struct page *pte)
{
- quicklist_free_page(QUICK_PT, NULL, pte);
-}
+ __free_page(pte);
+}
-#define __pte_free_tlb(tlb,pte) quicklist_free_page(QUICK_PT, NULL,(pte))
+#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
-#define __pmd_free_tlb(tlb,x) quicklist_free(QUICK_PT, NULL, (x))
-#define __pud_free_tlb(tlb,x) quicklist_free(QUICK_PT, NULL, (x))
+#define __pmd_free_tlb(tlb,x) tlb_remove_page((tlb),virt_to_page(x))
+#define __pud_free_tlb(tlb,x) tlb_remove_page((tlb),virt_to_page(x))
-static inline void check_pgt_cache(void)
-{
- quicklist_trim(QUICK_PGD, pgd_dtor, 25, 16);
- quicklist_trim(QUICK_PT, NULL, 25, 16);
-}
#endif /* _X86_64_PGALLOC_H */
#define HAVE_ARCH_UNMAPPED_AREA
#define pgtable_cache_init() do { } while (0)
+#define check_pgt_cache() do { } while (0)
#define PAGE_AGP PAGE_KERNEL_NOCACHE
#define HAVE_PAGE_AGP 1
#define ARCH_HAS_PREFETCH
static inline void prefetch(void *x)
{
- asm volatile("prefetcht0 %0" :: "m" (*(unsigned long *)x));
+ asm volatile("prefetcht0 (%0)" :: "r" (x));
}
#define ARCH_HAS_PREFETCHW 1
* CPUFREQ NOTIFIER INTERFACE *
*********************************************************************/
-#ifdef CONFIG_CPU_FREQ
int cpufreq_register_notifier(struct notifier_block *nb, unsigned int list);
-#else
-static inline int cpufreq_register_notifier(struct notifier_block *nb,
- unsigned int list)
-{
- return 0;
-}
-#endif
int cpufreq_unregister_notifier(struct notifier_block *nb, unsigned int list);
#define CPUFREQ_TRANSITION_NOTIFIER (0)
int cpufreq_get_policy(struct cpufreq_policy *policy, unsigned int cpu);
int cpufreq_update_policy(unsigned int cpu);
+/* query the current CPU frequency (in kHz). If zero, cpufreq couldn't detect it */
+unsigned int cpufreq_get(unsigned int cpu);
-/*
- * query the last known CPU freq (in kHz). If zero, cpufreq couldn't detect it
- */
+/* query the last known CPU freq (in kHz). If zero, cpufreq couldn't detect it */
#ifdef CONFIG_CPU_FREQ
unsigned int cpufreq_quick_get(unsigned int cpu);
-unsigned int cpufreq_get(unsigned int cpu);
#else
static inline unsigned int cpufreq_quick_get(unsigned int cpu)
{
return 0;
}
-static inline unsigned int cpufreq_get(unsigned int cpu)
-{
- return 0;
-}
#endif
.count = ATOMIC_INIT(1), \
.action = { { { .sa_handler = NULL, } }, }, \
.siglock = __SPIN_LOCK_UNLOCKED(sighand.siglock), \
- .signalfd_list = LIST_HEAD_INIT(sighand.signalfd_list), \
+ .signalfd_wqh = __WAIT_QUEUE_HEAD_INITIALIZER(sighand.signalfd_wqh), \
}
extern struct group_info init_groups;
extern struct mempolicy default_policy;
extern struct zonelist *huge_zonelist(struct vm_area_struct *vma,
- unsigned long addr, gfp_t gfp_flags);
+ unsigned long addr, gfp_t gfp_flags, struct mempolicy **mpol);
extern unsigned slab_node(struct mempolicy *policy);
extern enum zone_type policy_zone;
#define set_cpuset_being_rebound(x) do {} while (0)
static inline struct zonelist *huge_zonelist(struct vm_area_struct *vma,
- unsigned long addr, gfp_t gfp_flags)
+ unsigned long addr, gfp_t gfp_flags, struct mempolicy **mpol)
{
return NODE_DATA(0)->node_zonelists + gfp_zone(gfp_flags);
}
#define FSHIFT 11 /* nr of bits of precision */
#define FIXED_1 (1<<FSHIFT) /* 1.0 as fixed-point */
-#define LOAD_FREQ (5*HZ) /* 5 sec intervals */
+#define LOAD_FREQ (5*HZ+1) /* 5 sec intervals */
#define EXP_1 1884 /* 1/exp(5sec/1min) as fixed-point */
#define EXP_5 2014 /* 1/exp(5sec/5min) */
#define EXP_15 2037 /* 1/exp(5sec/15min) */
atomic_t count;
struct k_sigaction action[_NSIG];
spinlock_t siglock;
- struct list_head signalfd_list;
+ wait_queue_head_t signalfd_wqh;
};
struct pacct_struct {
#endif
/* Hash table maintenance information */
- struct list_head uidhash_list;
+ struct hlist_node uidhash_node;
uid_t uid;
};
extern unsigned int sysctl_sched_batch_wakeup_granularity;
extern unsigned int sysctl_sched_stat_granularity;
extern unsigned int sysctl_sched_runtime_limit;
+extern unsigned int sysctl_sched_compat_yield;
extern unsigned int sysctl_sched_child_runs_first;
extern unsigned int sysctl_sched_features;
}
extern void free_uid(struct user_struct *);
extern void switch_uid(struct user_struct *);
+extern void release_uids(struct user_namespace *ns);
#include <asm/current.h>
#ifdef CONFIG_SIGNALFD
/*
- * Deliver the signal to listening signalfd. This must be called
- * with the sighand lock held. Same are the following that end up
- * calling signalfd_deliver().
- */
-void signalfd_deliver(struct task_struct *tsk, int sig);
-
-/*
- * No need to fall inside signalfd_deliver() if no signal listeners
- * are available.
+ * Deliver the signal to listening signalfd.
*/
static inline void signalfd_notify(struct task_struct *tsk, int sig)
{
- if (unlikely(!list_empty(&tsk->sighand->signalfd_list)))
- signalfd_deliver(tsk, sig);
-}
-
-/*
- * The signal -1 is used to notify the signalfd that the sighand
- * is on its way to be detached.
- */
-static inline void signalfd_detach_locked(struct task_struct *tsk)
-{
- if (unlikely(!list_empty(&tsk->sighand->signalfd_list)))
- signalfd_deliver(tsk, -1);
-}
-
-static inline void signalfd_detach(struct task_struct *tsk)
-{
- struct sighand_struct *sighand = tsk->sighand;
-
- if (unlikely(!list_empty(&sighand->signalfd_list))) {
- spin_lock_irq(&sighand->siglock);
- signalfd_deliver(tsk, -1);
- spin_unlock_irq(&sighand->siglock);
- }
+ if (unlikely(waitqueue_active(&tsk->sighand->signalfd_wqh)))
+ wake_up(&tsk->sighand->signalfd_wqh);
}
#else /* CONFIG_SIGNALFD */
-#define signalfd_deliver(t, s) do { } while (0)
-#define signalfd_notify(t, s) do { } while (0)
-#define signalfd_detach_locked(t) do { } while (0)
-#define signalfd_detach(t) do { } while (0)
+static inline void signalfd_notify(struct task_struct *tsk, int sig) { }
#endif /* CONFIG_SIGNALFD */
struct user_namespace {
struct kref kref;
- struct list_head uidhash_table[UIDHASH_SZ];
+ struct hlist_head uidhash_table[UIDHASH_SZ];
struct user_struct *root_user;
};
loff_t pos, loff_t count);
int sync_page_range_nolock(struct inode *inode, struct address_space *mapping,
loff_t pos, loff_t count);
-void set_page_dirty_balance(struct page *page);
+void set_page_dirty_balance(struct page *page, int page_mkwrite);
void writeback_set_ratelimit(void);
/* pdflush.c */
extern void rose_enquiry_response(struct sock *);
/* rose_route.c */
-extern struct rose_neigh rose_loopback_neigh;
+extern struct rose_neigh *rose_loopback_neigh;
extern const struct file_operations rose_neigh_fops;
extern const struct file_operations rose_nodes_fops;
extern const struct file_operations rose_routes_fops;
sctp_state_fn_t sctp_sf_eat_data_6_2;
sctp_state_fn_t sctp_sf_eat_data_fast_4_4;
sctp_state_fn_t sctp_sf_eat_sack_6_2;
-sctp_state_fn_t sctp_sf_tabort_8_4_8;
sctp_state_fn_t sctp_sf_operr_notify;
sctp_state_fn_t sctp_sf_t1_init_timer_expire;
sctp_state_fn_t sctp_sf_t1_cookie_timer_expire;
int, __be16);
struct sctp_chunk *sctp_make_asconf_set_prim(struct sctp_association *asoc,
union sctp_addr *addr);
+int sctp_verify_asconf(const struct sctp_association *asoc,
+ struct sctp_paramhdr *param_hdr, void *chunk_end,
+ struct sctp_paramhdr **errp);
struct sctp_chunk *sctp_process_asconf(struct sctp_association *asoc,
struct sctp_chunk *asconf);
int sctp_process_asconf_ack(struct sctp_association *asoc,
* internally.
*/
union sctp_addr_param {
+ struct sctp_paramhdr p;
struct sctp_ipv4addr_param v4;
struct sctp_ipv6addr_param v6;
};
int sctp_add_bind_addr(struct sctp_bind_addr *, union sctp_addr *,
__u8 use_as_src, gfp_t gfp);
int sctp_del_bind_addr(struct sctp_bind_addr *, union sctp_addr *,
- void (*rcu_call)(struct rcu_head *,
+ void fastcall (*rcu_call)(struct rcu_head *,
void (*func)(struct rcu_head *)));
int sctp_bind_addr_match(struct sctp_bind_addr *, const union sctp_addr *,
struct sctp_sock *);
};
struct tcp4_md5sig_key {
- u8 *key;
- u16 keylen;
+ struct tcp_md5sig_key base;
__be32 addr;
};
struct tcp6_md5sig_key {
- u8 *key;
- u16 keylen;
+ struct tcp_md5sig_key base;
#if 0
u32 scope_id; /* XXX */
#endif
config TIMERFD
bool "Enable timerfd() system call" if EMBEDDED
select ANON_INODES
+ depends on BROKEN
default y
help
Enable the timerfd() system call that allows to receive timer
pid = kernel_thread(do_linuxrc, "/linuxrc", SIGCHLD);
if (pid > 0)
- while (pid != sys_wait4(-1, NULL, 0, NULL))
+ while (pid != sys_wait4(-1, NULL, 0, NULL)) {
+ try_to_freeze();
yield();
+ }
/* move initrd to rootfs' /old */
sys_fchdir(old_fd);
#include <linux/pid_namespace.h>
#include <linux/ptrace.h>
#include <linux/profile.h>
-#include <linux/signalfd.h>
#include <linux/mount.h>
#include <linux/proc_fs.h>
#include <linux/kthread.h>
sighand = rcu_dereference(tsk->sighand);
spin_lock(&sighand->siglock);
- /*
- * Notify that this sighand has been detached. This must
- * be called with the tsk->sighand lock held. Also, this
- * access tsk->sighand internally, so it must be called
- * before tsk->sighand is reset.
- */
- signalfd_detach_locked(tsk);
-
posix_cpu_timers_exit(tsk);
if (atomic_dec_and_test(&sig->count))
posix_cpu_timers_exit_group(tsk);
struct sighand_struct *sighand = data;
spin_lock_init(&sighand->siglock);
- INIT_LIST_HEAD(&sighand->signalfd_list);
+ init_waitqueue_head(&sighand->signalfd_wqh);
}
void __init proc_caches_init(void)
void exit_robust_list(struct task_struct *curr)
{
struct robust_list_head __user *head = curr->robust_list;
- struct robust_list __user *entry, *pending;
- unsigned int limit = ROBUST_LIST_LIMIT, pi, pip;
+ struct robust_list __user *entry, *next_entry, *pending;
+ unsigned int limit = ROBUST_LIST_LIMIT, pi, next_pi, pip;
unsigned long futex_offset;
+ int rc;
/*
* Fetch the list head (which was registered earlier, via
if (fetch_robust_entry(&pending, &head->list_op_pending, &pip))
return;
- if (pending)
- handle_futex_death((void __user *)pending + futex_offset,
- curr, pip);
-
+ next_entry = NULL; /* avoid warning with gcc */
while (entry != &head->list) {
+ /*
+ * Fetch the next entry in the list before calling
+ * handle_futex_death:
+ */
+ rc = fetch_robust_entry(&next_entry, &entry->next, &next_pi);
/*
* A pending lock might already be on the list, so
* don't process it twice:
if (handle_futex_death((void __user *)entry + futex_offset,
curr, pi))
return;
- /*
- * Fetch the next entry in the list:
- */
- if (fetch_robust_entry(&entry, &entry->next, &pi))
+ if (rc)
return;
+ entry = next_entry;
+ pi = next_pi;
/*
* Avoid excessively long or circular lists:
*/
cond_resched();
}
+
+ if (pending)
+ handle_futex_death((void __user *)pending + futex_offset,
+ curr, pip);
}
long do_futex(u32 __user *uaddr, int op, u32 val, ktime_t *timeout,
void compat_exit_robust_list(struct task_struct *curr)
{
struct compat_robust_list_head __user *head = curr->compat_robust_list;
- struct robust_list __user *entry, *pending;
- unsigned int limit = ROBUST_LIST_LIMIT, pi, pip;
- compat_uptr_t uentry, upending;
+ struct robust_list __user *entry, *next_entry, *pending;
+ unsigned int limit = ROBUST_LIST_LIMIT, pi, next_pi, pip;
+ compat_uptr_t uentry, next_uentry, upending;
compat_long_t futex_offset;
+ int rc;
/*
* Fetch the list head (which was registered earlier, via
if (fetch_robust_entry(&upending, &pending,
&head->list_op_pending, &pip))
return;
- if (pending)
- handle_futex_death((void __user *)pending + futex_offset, curr, pip);
+ next_entry = NULL; /* avoid warning with gcc */
while (entry != (struct robust_list __user *) &head->list) {
+ /*
+ * Fetch the next entry in the list before calling
+ * handle_futex_death:
+ */
+ rc = fetch_robust_entry(&next_uentry, &next_entry,
+ (compat_uptr_t __user *)&entry->next, &next_pi);
/*
* A pending lock might already be on the list, so
* dont process it twice:
curr, pi))
return;
- /*
- * Fetch the next entry in the list:
- */
- if (fetch_robust_entry(&uentry, &entry,
- (compat_uptr_t __user *)&entry->next, &pi))
+ if (rc)
return;
+ uentry = next_uentry;
+ entry = next_entry;
+ pi = next_pi;
/*
* Avoid excessively long or circular lists:
*/
cond_resched();
}
+ if (pending)
+ handle_futex_death((void __user *)pending + futex_offset,
+ curr, pip);
}
asmlinkage long
config HIBERNATION_UP_POSSIBLE
bool
- depends on X86 || PPC64_SWSUSP || FRV || PPC32
+ depends on X86 || PPC64_SWSUSP || PPC32
depends on !SMP
default y
p->prio = effective_prio(p);
+ if (rt_prio(p->prio))
+ p->sched_class = &rt_sched_class;
+ else
+ p->sched_class = &fair_sched_class;
+
if (!p->sched_class->task_new || !sysctl_sched_child_runs_first ||
(clone_flags & CLONE_VM) || task_cpu(p) != this_cpu ||
!current->se.on_rq) {
struct rq *rq = this_rq_lock();
schedstat_inc(rq, yld_cnt);
- if (unlikely(rq->nr_running == 1))
- schedstat_inc(rq, yld_act_empty);
- else
- current->sched_class->yield_task(rq, current);
+ current->sched_class->yield_task(rq, current);
/*
* Since we are going to call schedule() anyway, there's
*/
unsigned int sysctl_sched_min_granularity __read_mostly = 2000000ULL;
+/*
+ * sys_sched_yield() compat mode
+ *
+ * This option switches the agressive yield implementation of the
+ * old scheduler back on.
+ */
+unsigned int __read_mostly sysctl_sched_compat_yield;
+
/*
* SCHED_BATCH wake-up granularity.
* (default: 25 msec, units: nanoseconds)
se->block_start = 0;
se->sum_sleep_runtime += delta;
+
+ /*
+ * Blocking time is in units of nanosecs, so shift by 20 to
+ * get a milliseconds-range estimation of the amount of
+ * time that the task spent sleeping:
+ */
+ if (unlikely(prof_on == SLEEP_PROFILING)) {
+ profile_hits(SLEEP_PROFILING, (void *)get_wchan(tsk),
+ delta >> 20);
+ }
}
#endif
}
}
/*
- * sched_yield() support is very simple - we dequeue and enqueue
+ * sched_yield() support is very simple - we dequeue and enqueue.
+ *
+ * If compat_yield is turned on then we requeue to the end of the tree.
*/
static void yield_task_fair(struct rq *rq, struct task_struct *p)
{
struct cfs_rq *cfs_rq = task_cfs_rq(p);
+ struct rb_node **link = &cfs_rq->tasks_timeline.rb_node;
+ struct sched_entity *rightmost, *se = &p->se;
+ struct rb_node *parent;
- __update_rq_clock(rq);
/*
- * Dequeue and enqueue the task to update its
- * position within the tree:
+ * Are we the only task in the tree?
+ */
+ if (unlikely(cfs_rq->nr_running == 1))
+ return;
+
+ if (likely(!sysctl_sched_compat_yield)) {
+ __update_rq_clock(rq);
+ /*
+ * Dequeue and enqueue the task to update its
+ * position within the tree:
+ */
+ dequeue_entity(cfs_rq, &p->se, 0);
+ enqueue_entity(cfs_rq, &p->se, 0);
+
+ return;
+ }
+ /*
+ * Find the rightmost entry in the rbtree:
+ */
+ do {
+ parent = *link;
+ link = &parent->rb_right;
+ } while (*link);
+
+ rightmost = rb_entry(parent, struct sched_entity, run_node);
+ /*
+ * Already in the rightmost position?
*/
- dequeue_entity(cfs_rq, &p->se, 0);
- enqueue_entity(cfs_rq, &p->se, 0);
+ if (unlikely(rightmost == se))
+ return;
+
+ /*
+ * Minimally necessary key value to be last in the tree:
+ */
+ se->fair_key = rightmost->fair_key + 1;
+
+ if (cfs_rq->rb_leftmost == &se->run_node)
+ cfs_rq->rb_leftmost = rb_next(&se->run_node);
+ /*
+ * Relink the task to the rightmost position:
+ */
+ rb_erase(&se->run_node, &cfs_rq->tasks_timeline);
+ rb_link_node(&se->run_node, parent, link);
+ rb_insert_color(&se->run_node, &cfs_rq->tasks_timeline);
}
/*
/* We only dequeue private signals from ourselves, we don't let
* signalfd steal them
*/
- if (likely(tsk == current))
- signr = __dequeue_signal(&tsk->pending, mask, info);
+ signr = __dequeue_signal(&tsk->pending, mask, info);
if (!signr) {
signr = __dequeue_signal(&tsk->signal->shared_pending,
mask, info);
}
}
}
- if (likely(tsk == current))
- recalc_sigpending();
+ recalc_sigpending();
if (signr && unlikely(sig_kernel_stop(signr))) {
/*
* Set a marker that we have dequeued a stop signal. Our
if (!(tsk->signal->flags & SIGNAL_GROUP_EXIT))
tsk->signal->flags |= SIGNAL_STOP_DEQUEUED;
}
- if (signr && likely(tsk == current) &&
+ if (signr &&
((info->si_code & __SI_MASK) == __SI_TIMER) &&
info->si_sys_private){
/*
if (!valid_signal(sig))
return error;
- error = audit_signal_info(sig, t); /* Let audit system see the signal */
- if (error)
- return error;
-
- error = -EPERM;
- if ((info == SEND_SIG_NOINFO || (!is_si_special(info) && SI_FROMUSER(info)))
- && ((sig != SIGCONT) ||
- (process_session(current) != process_session(t)))
- && (current->euid ^ t->suid) && (current->euid ^ t->uid)
- && (current->uid ^ t->suid) && (current->uid ^ t->uid)
- && !capable(CAP_KILL))
+ if (info == SEND_SIG_NOINFO || (!is_si_special(info) && SI_FROMUSER(info))) {
+ error = audit_signal_info(sig, t); /* Let audit system see the signal */
+ if (error)
+ return error;
+ error = -EPERM;
+ if (((sig != SIGCONT) ||
+ (process_session(current) != process_session(t)))
+ && (current->euid ^ t->suid) && (current->euid ^ t->uid)
+ && (current->uid ^ t->suid) && (current->uid ^ t->uid)
+ && !capable(CAP_KILL))
return error;
+ }
return security_task_kill(t, info, sig, 0);
}
#include <linux/getcpu.h>
#include <linux/task_io_accounting_ops.h>
#include <linux/seccomp.h>
+#include <linux/cpu.h>
#include <linux/compat.h>
#include <linux/syscalls.h>
kernel_shutdown_prepare(SYSTEM_POWER_OFF);
if (pm_power_off_prepare)
pm_power_off_prepare();
+ disable_nonboot_cpus();
sysdev_shutdown();
printk(KERN_EMERG "Power down.\n");
machine_power_off();
.proc_handler = &proc_dointvec,
},
#endif
+ {
+ .ctl_name = CTL_UNNUMBERED,
+ .procname = "sched_compat_yield",
+ .data = &sysctl_sched_compat_yield,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec,
+ },
#ifdef CONFIG_PROVE_LOCKING
{
.ctl_name = CTL_UNNUMBERED,
int tick_resume_broadcast_oneshot(struct clock_event_device *bc)
{
- int cpu = smp_processor_id();
-
- /*
- * If the CPU is marked for broadcast, enforce oneshot
- * broadcast mode. The jinxed VAIO does not resume otherwise.
- * No idea why it ends up in a lower C State during resume
- * without notifying the clock events layer.
- */
- if (cpu_isset(cpu, tick_broadcast_mask))
- cpu_set(cpu, tick_broadcast_oneshot_mask);
-
clockevents_set_mode(bc, CLOCK_EVT_MODE_ONESHOT);
-
- if(!cpus_empty(tick_broadcast_oneshot_mask))
- tick_broadcast_set_event(ktime_get(), 1);
-
- return cpu_isset(cpu, tick_broadcast_oneshot_mask);
+ return 0;
}
/*
ms = 1;
if (events && period.tv_sec)
- seq_printf(m, "%ld total events, %ld.%ld events/sec\n", events,
- events / period.tv_sec, events * 1000 / ms);
+ seq_printf(m, "%ld total events, %ld.%03ld events/sec\n",
+ events, events * 1000 / ms,
+ (events * 1000000 / ms) % 1000);
else
seq_printf(m, "%ld total events\n", events);
/*
* These routines must be called with the uidhash spinlock held!
*/
-static inline void uid_hash_insert(struct user_struct *up, struct list_head *hashent)
+static inline void uid_hash_insert(struct user_struct *up, struct hlist_head *hashent)
{
- list_add(&up->uidhash_list, hashent);
+ hlist_add_head(&up->uidhash_node, hashent);
}
static inline void uid_hash_remove(struct user_struct *up)
{
- list_del(&up->uidhash_list);
+ hlist_del_init(&up->uidhash_node);
}
-static inline struct user_struct *uid_hash_find(uid_t uid, struct list_head *hashent)
+static inline struct user_struct *uid_hash_find(uid_t uid, struct hlist_head *hashent)
{
- struct list_head *up;
-
- list_for_each(up, hashent) {
- struct user_struct *user;
-
- user = list_entry(up, struct user_struct, uidhash_list);
+ struct user_struct *user;
+ struct hlist_node *h;
+ hlist_for_each_entry(user, h, hashent, uidhash_node) {
if(user->uid == uid) {
atomic_inc(&user->__count);
return user;
struct user_struct * alloc_uid(struct user_namespace *ns, uid_t uid)
{
- struct list_head *hashent = uidhashentry(ns, uid);
+ struct hlist_head *hashent = uidhashentry(ns, uid);
struct user_struct *up;
spin_lock_irq(&uidhash_lock);
suid_keys(current);
}
+void release_uids(struct user_namespace *ns)
+{
+ int i;
+ unsigned long flags;
+ struct hlist_head *head;
+ struct hlist_node *nd;
+
+ spin_lock_irqsave(&uidhash_lock, flags);
+ /*
+ * collapse the chains so that the user_struct-s will
+ * be still alive, but not in hashes. subsequent free_uid()
+ * will free them.
+ */
+ for (i = 0; i < UIDHASH_SZ; i++) {
+ head = ns->uidhash_table + i;
+ while (!hlist_empty(head)) {
+ nd = head->first;
+ hlist_del_init(nd);
+ }
+ }
+ spin_unlock_irqrestore(&uidhash_lock, flags);
+
+ free_uid(ns->root_user);
+}
static int __init uid_cache_init(void)
{
0, SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
for(n = 0; n < UIDHASH_SZ; ++n)
- INIT_LIST_HEAD(init_user_ns.uidhash_table + n);
+ INIT_HLIST_HEAD(init_user_ns.uidhash_table + n);
/* Insert the root user immediately (init already runs as root) */
spin_lock_irq(&uidhash_lock);
kref_init(&ns->kref);
for (n = 0; n < UIDHASH_SZ; ++n)
- INIT_LIST_HEAD(ns->uidhash_table + n);
+ INIT_HLIST_HEAD(ns->uidhash_table + n);
/* Insert new root user. */
ns->root_user = alloc_uid(ns, 0);
struct user_namespace *ns;
ns = container_of(kref, struct user_namespace, kref);
- free_uid(ns->root_user);
+ release_uids(ns);
kfree(ns);
}
if (!ns)
return ERR_PTR(-ENOMEM);
+ down_read(&uts_sem);
memcpy(&ns->name, &old_ns->name, sizeof(ns->name));
+ up_read(&uts_sem);
kref_init(&ns->kref);
return ns;
}
select KALLSYMS_ALL
config LOCK_STAT
- bool "Lock usage statisitics"
+ bool "Lock usage statistics"
depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
select LOCKDEP
select DEBUG_SPINLOCK
help
This feature enables tracking lock contention points
+ For more details, see Documentation/lockstat.txt
+
config DEBUG_LOCKDEP
bool "Lock dependency engine debugging"
depends on DEBUG_KERNEL && LOCKDEP
# Makefile for some libs needed in the kernel.
#
-lib-y := ctype.o string.o vsprintf.o kasprintf.o cmdline.o \
+lib-y := ctype.o string.o vsprintf.o cmdline.o \
rbtree.o radix-tree.o dump_stack.o \
idr.o int_sqrt.o bitmap.o extable.o prio_tree.o \
sha1.o irq_regs.o reciprocal_div.o argv_split.o
lib-y += kobject.o kref.o kobject_uevent.o klist.o
obj-y += div64.o sort.o parser.o halfmd4.o debug_locks.o random32.o \
- bust_spinlocks.o hexdump.o
+ bust_spinlocks.o hexdump.o kasprintf.o
ifeq ($(CONFIG_DEBUG_KOBJECT),y)
CFLAGS_kobject.o += -DDEBUG
int
default "4096" if ARM && !CPU_CACHE_VIPT
default "4096" if PARISC && !PA20
+ default "4096" if XEN
default "4"
#
size = (i_size_read(inode) + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
if (unlikely(vmf->pgoff >= size)) {
unlock_page(page);
+ page_cache_release(page);
goto outside_data_content;
}
if (vma->vm_private_data && !(vma->vm_flags & VM_NONLINEAR))
goto out;
- if (!vma->vm_flags & VM_CAN_NONLINEAR)
+ if (!(vma->vm_flags & VM_CAN_NONLINEAR))
goto out;
if (end <= start || start < vma->vm_start || end > vma->vm_end)
might_sleep();
for (i = 0; i < (HPAGE_SIZE/PAGE_SIZE); i++) {
cond_resched();
- clear_user_highpage(page + i, addr);
+ clear_user_highpage(page + i, addr + i * PAGE_SIZE);
}
}
{
int nid;
struct page *page = NULL;
+ struct mempolicy *mpol;
struct zonelist *zonelist = huge_zonelist(vma, address,
- htlb_alloc_mask);
+ htlb_alloc_mask, &mpol);
struct zone **z;
for (z = zonelist->zones; *z; z++) {
break;
}
}
+ mpol_free(mpol); /* unref if mpol !NULL */
return page;
}
struct page *old_page, *new_page;
pte_t entry;
int reuse = 0, ret = 0;
+ int page_mkwrite = 0;
struct page *dirty_page = NULL;
old_page = vm_normal_page(vma, address, orig_pte);
page_cache_release(old_page);
if (!pte_same(*page_table, orig_pte))
goto unlock;
+
+ page_mkwrite = 1;
}
dirty_page = old_page;
get_page(dirty_page);
* do_no_page is protected similarly.
*/
wait_on_page_locked(dirty_page);
- set_page_dirty_balance(dirty_page);
+ set_page_dirty_balance(dirty_page, page_mkwrite);
put_page(dirty_page);
}
return ret;
* do not need to flush old virtual caches or the TLB.
*
* We enter with non-exclusive mmap_sem (to exclude vma changes,
- * but allow concurrent faults), and pte mapped but not yet locked.
+ * but allow concurrent faults), and pte neither mapped nor locked.
* We return with mmap_sem still held, but pte unmapped and unlocked.
*/
static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma,
- unsigned long address, pte_t *page_table, pmd_t *pmd,
+ unsigned long address, pmd_t *pmd,
pgoff_t pgoff, unsigned int flags, pte_t orig_pte)
{
+ pte_t *page_table;
spinlock_t *ptl;
struct page *page;
pte_t entry;
struct page *dirty_page = NULL;
struct vm_fault vmf;
int ret;
+ int page_mkwrite = 0;
vmf.virtual_address = (void __user *)(address & PAGE_MASK);
vmf.pgoff = pgoff;
vmf.flags = flags;
vmf.page = NULL;
- pte_unmap(page_table);
BUG_ON(vma->vm_flags & VM_PFNMAP);
if (likely(vma->vm_ops->fault)) {
anon = 1; /* no anon but release vmf.page */
goto out;
}
+ page_mkwrite = 1;
}
}
if (anon)
page_cache_release(vmf.page);
else if (dirty_page) {
- set_page_dirty_balance(dirty_page);
+ set_page_dirty_balance(dirty_page, page_mkwrite);
put_page(dirty_page);
}
- vma->vm_start) >> PAGE_CACHE_SHIFT) + vma->vm_pgoff;
unsigned int flags = (write_access ? FAULT_FLAG_WRITE : 0);
- return __do_fault(mm, vma, address, page_table, pmd, pgoff,
- flags, orig_pte);
+ pte_unmap(page_table);
+ return __do_fault(mm, vma, address, pmd, pgoff, flags, orig_pte);
}
}
pgoff = pte_to_pgoff(orig_pte);
-
- return __do_fault(mm, vma, address, page_table, pmd, pgoff,
- flags, orig_pte);
+ return __do_fault(mm, vma, address, pmd, pgoff, flags, orig_pte);
}
/*
#endif
-/* Return effective policy for a VMA */
+/*
+ * get_vma_policy(@task, @vma, @addr)
+ * @task - task for fallback if vma policy == default
+ * @vma - virtual memory area whose policy is sought
+ * @addr - address in @vma for shared policy lookup
+ *
+ * Returns effective policy for a VMA at specified address.
+ * Falls back to @task or system default policy, as necessary.
+ * Returned policy has extra reference count if shared, vma,
+ * or some other task's policy [show_numa_maps() can pass
+ * @task != current]. It is the caller's responsibility to
+ * free the reference in these cases.
+ */
static struct mempolicy * get_vma_policy(struct task_struct *task,
struct vm_area_struct *vma, unsigned long addr)
{
struct mempolicy *pol = task->mempolicy;
+ int shared_pol = 0;
if (vma) {
- if (vma->vm_ops && vma->vm_ops->get_policy)
+ if (vma->vm_ops && vma->vm_ops->get_policy) {
pol = vma->vm_ops->get_policy(vma, addr);
- else if (vma->vm_policy &&
+ shared_pol = 1; /* if pol non-NULL, add ref below */
+ } else if (vma->vm_policy &&
vma->vm_policy->policy != MPOL_DEFAULT)
pol = vma->vm_policy;
}
if (!pol)
pol = &default_policy;
+ else if (!shared_pol && pol != current->mempolicy)
+ mpol_get(pol); /* vma or other task's policy */
return pol;
}
}
#ifdef CONFIG_HUGETLBFS
-/* Return a zonelist suitable for a huge page allocation. */
+/*
+ * huge_zonelist(@vma, @addr, @gfp_flags, @mpol)
+ * @vma = virtual memory area whose policy is sought
+ * @addr = address in @vma for shared policy lookup and interleave policy
+ * @gfp_flags = for requested zone
+ * @mpol = pointer to mempolicy pointer for reference counted 'BIND policy
+ *
+ * Returns a zonelist suitable for a huge page allocation.
+ * If the effective policy is 'BIND, returns pointer to policy's zonelist.
+ * If it is also a policy for which get_vma_policy() returns an extra
+ * reference, we must hold that reference until after allocation.
+ * In that case, return policy via @mpol so hugetlb allocation can drop
+ * the reference. For non-'BIND referenced policies, we can/do drop the
+ * reference here, so the caller doesn't need to know about the special case
+ * for default and current task policy.
+ */
struct zonelist *huge_zonelist(struct vm_area_struct *vma, unsigned long addr,
- gfp_t gfp_flags)
+ gfp_t gfp_flags, struct mempolicy **mpol)
{
struct mempolicy *pol = get_vma_policy(current, vma, addr);
+ struct zonelist *zl;
+ *mpol = NULL; /* probably no unref needed */
if (pol->policy == MPOL_INTERLEAVE) {
unsigned nid;
nid = interleave_nid(pol, vma, addr, HPAGE_SHIFT);
+ __mpol_free(pol); /* finished with pol */
return NODE_DATA(nid)->node_zonelists + gfp_zone(gfp_flags);
}
- return zonelist_policy(GFP_HIGHUSER, pol);
+
+ zl = zonelist_policy(GFP_HIGHUSER, pol);
+ if (unlikely(pol != &default_policy && pol != current->mempolicy)) {
+ if (pol->policy != MPOL_BIND)
+ __mpol_free(pol); /* finished with pol */
+ else
+ *mpol = pol; /* unref needed after allocation */
+ }
+ return zl;
}
#endif
alloc_page_vma(gfp_t gfp, struct vm_area_struct *vma, unsigned long addr)
{
struct mempolicy *pol = get_vma_policy(current, vma, addr);
+ struct zonelist *zl;
cpuset_update_task_memory_state();
nid = interleave_nid(pol, vma, addr, PAGE_SHIFT);
return alloc_page_interleave(gfp, 0, nid);
}
- return __alloc_pages(gfp, 0, zonelist_policy(gfp, pol));
+ zl = zonelist_policy(gfp, pol);
+ if (pol != &default_policy && pol != current->mempolicy) {
+ /*
+ * slow path: ref counted policy -- shared or vma
+ */
+ struct page *page = __alloc_pages(gfp, 0, zl);
+ __mpol_free(pol);
+ return page;
+ }
+ /*
+ * fast path: default or task policy
+ */
+ return __alloc_pages(gfp, 0, zl);
}
/**
struct numa_maps *md;
struct file *file = vma->vm_file;
struct mm_struct *mm = vma->vm_mm;
+ struct mempolicy *pol;
int n;
char buffer[50];
if (!md)
return 0;
- mpol_to_str(buffer, sizeof(buffer),
- get_vma_policy(priv->task, vma, vma->vm_start));
+ pol = get_vma_policy(priv->task, vma, vma->vm_start);
+ mpol_to_str(buffer, sizeof(buffer), pol);
+ /*
+ * unref shared or other task's mempolicy
+ */
+ if (pol != &default_policy && pol != current->mempolicy)
+ __mpol_free(pol);
seq_printf(m, "%08lx %s", vma->vm_start, buffer);
pdflush_operation(background_writeout, 0);
}
-void set_page_dirty_balance(struct page *page)
+void set_page_dirty_balance(struct page *page, int page_mkwrite)
{
- if (set_page_dirty(page)) {
+ if (set_page_dirty(page) || page_mkwrite) {
struct address_space *mapping = page_mapping(page);
if (mapping)
frag = WLAN_GET_SEQ_FRAG(sc);
hdrlen = ieee80211_get_hdrlen(fc);
+ if (skb->len < hdrlen) {
+ printk(KERN_INFO "%s: invalid SKB length %d\n",
+ dev->name, skb->len);
+ goto rx_dropped;
+ }
+
/* Put this code here so that we avoid duplicating it in all
* Rx paths. - Jean II */
#ifdef CONFIG_WIRELESS_EXT
ieee80211softmac_notify(mac->dev, IEEE80211SOFTMAC_EVENT_SCAN_FINISHED, ieee80211softmac_assoc_notify_scan, NULL);
if (ieee80211softmac_start_scan(mac)) {
dprintk(KERN_INFO PFX "Associate: failed to initiate scan. Is device up?\n");
- mac->associnfo.associating = 0;
- mac->associnfo.associated = 0;
}
goto out;
} else {
char *extra)
{
struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
- struct ieee80211softmac_network *n;
struct ieee80211softmac_auth_queue_item *authptr;
int length = 0;
check_assoc_again:
mutex_lock(&sm->associnfo.mutex);
- /* Check if we're already associating to this or another network
- * If it's another network, cancel and start over with our new network
- * If it's our network, ignore the change, we're already doing it!
- */
if((sm->associnfo.associating || sm->associnfo.associated) &&
(data->essid.flags && data->essid.length)) {
- /* Get the associating network */
- n = ieee80211softmac_get_network_by_bssid(sm, sm->associnfo.bssid);
- if(n && n->essid.len == data->essid.length &&
- !memcmp(n->essid.data, extra, n->essid.len)) {
- dprintk(KERN_INFO PFX "Already associating or associated to "MAC_FMT"\n",
- MAC_ARG(sm->associnfo.bssid));
- goto out;
- } else {
- dprintk(KERN_INFO PFX "Canceling existing associate request!\n");
- /* Cancel assoc work */
- cancel_delayed_work(&sm->associnfo.work);
- /* We don't have to do this, but it's a little cleaner */
- list_for_each_entry(authptr, &sm->auth_queue, list)
- cancel_delayed_work(&authptr->work);
- sm->associnfo.bssvalid = 0;
- sm->associnfo.bssfixed = 0;
- sm->associnfo.associating = 0;
- sm->associnfo.associated = 0;
- /* We must unlock to avoid deadlocks with the assoc workqueue
- * on the associnfo.mutex */
- mutex_unlock(&sm->associnfo.mutex);
- flush_scheduled_work();
- /* Avoid race! Check assoc status again. Maybe someone started an
- * association while we flushed. */
- goto check_assoc_again;
- }
+ dprintk(KERN_INFO PFX "Canceling existing associate request!\n");
+ /* Cancel assoc work */
+ cancel_delayed_work(&sm->associnfo.work);
+ /* We don't have to do this, but it's a little cleaner */
+ list_for_each_entry(authptr, &sm->auth_queue, list)
+ cancel_delayed_work(&authptr->work);
+ sm->associnfo.bssvalid = 0;
+ sm->associnfo.bssfixed = 0;
+ sm->associnfo.associating = 0;
+ sm->associnfo.associated = 0;
+ /* We must unlock to avoid deadlocks with the assoc workqueue
+ * on the associnfo.mutex */
+ mutex_unlock(&sm->associnfo.mutex);
+ flush_scheduled_work();
+ /* Avoid race! Check assoc status again. Maybe someone started an
+ * association while we flushed. */
+ goto check_assoc_again;
}
sm->associnfo.static_essid = 0;
sm->associnfo.associating = 1;
/* queue lower level code to do work (if necessary) */
schedule_delayed_work(&sm->associnfo.work, 0);
-out:
+
mutex_unlock(&sm->associnfo.mutex);
return 0;
data->essid.length = sm->associnfo.req_essid.len;
data->essid.flags = 1; /* active */
memcpy(extra, sm->associnfo.req_essid.data, sm->associnfo.req_essid.len);
- }
-
+ dprintk(KERN_INFO PFX "Getting essid from req_essid\n");
+ } else if (sm->associnfo.associated || sm->associnfo.associating) {
/* If we're associating/associated, return that */
- if (sm->associnfo.associated || sm->associnfo.associating) {
data->essid.length = sm->associnfo.associate_essid.len;
data->essid.flags = 1; /* active */
memcpy(extra, sm->associnfo.associate_essid.data, sm->associnfo.associate_essid.len);
+ dprintk(KERN_INFO PFX "Getting essid from associate_essid\n");
}
mutex_unlock(&sm->associnfo.mutex);
__u32 dval = min(tp->fackets_out, packets_acked);
tp->fackets_out -= dval;
}
+ /* hint's skb might be NULL but we don't need to care */
+ tp->fastpath_cnt_hint -= min_t(u32, packets_acked,
+ tp->fastpath_cnt_hint);
tp->packets_out -= packets_acked;
BUG_ON(tcp_skb_pcount(skb) == 0);
return NULL;
for (i = 0; i < tp->md5sig_info->entries4; i++) {
if (tp->md5sig_info->keys4[i].addr == addr)
- return (struct tcp_md5sig_key *)
- &tp->md5sig_info->keys4[i];
+ return &tp->md5sig_info->keys4[i].base;
}
return NULL;
}
key = (struct tcp4_md5sig_key *)tcp_v4_md5_do_lookup(sk, addr);
if (key) {
/* Pre-existing entry - just update that one. */
- kfree(key->key);
- key->key = newkey;
- key->keylen = newkeylen;
+ kfree(key->base.key);
+ key->base.key = newkey;
+ key->base.keylen = newkeylen;
} else {
struct tcp_md5sig_info *md5sig;
md5sig->alloced4++;
}
md5sig->entries4++;
- md5sig->keys4[md5sig->entries4 - 1].addr = addr;
- md5sig->keys4[md5sig->entries4 - 1].key = newkey;
- md5sig->keys4[md5sig->entries4 - 1].keylen = newkeylen;
+ md5sig->keys4[md5sig->entries4 - 1].addr = addr;
+ md5sig->keys4[md5sig->entries4 - 1].base.key = newkey;
+ md5sig->keys4[md5sig->entries4 - 1].base.keylen = newkeylen;
}
return 0;
}
for (i = 0; i < tp->md5sig_info->entries4; i++) {
if (tp->md5sig_info->keys4[i].addr == addr) {
/* Free the key */
- kfree(tp->md5sig_info->keys4[i].key);
+ kfree(tp->md5sig_info->keys4[i].base.key);
tp->md5sig_info->entries4--;
if (tp->md5sig_info->entries4 == 0) {
if (tp->md5sig_info->entries4) {
int i;
for (i = 0; i < tp->md5sig_info->entries4; i++)
- kfree(tp->md5sig_info->keys4[i].key);
+ kfree(tp->md5sig_info->keys4[i].base.key);
tp->md5sig_info->entries4 = 0;
tcp_free_md5sig_pool();
}
if (ipv6_addr_equal(dest, target)) {
on_link = 1;
- } else if (!(ipv6_addr_type(target) & IPV6_ADDR_LINKLOCAL)) {
+ } else if (ipv6_addr_type(target) !=
+ (IPV6_ADDR_UNICAST|IPV6_ADDR_LINKLOCAL)) {
ND_PRINTK2(KERN_WARNING
- "ICMPv6 Redirect: target address is not link-local.\n");
+ "ICMPv6 Redirect: target address is not link-local unicast.\n");
return;
}
}
if (!ipv6_addr_equal(&ipv6_hdr(skb)->daddr, target) &&
- !(ipv6_addr_type(target) & IPV6_ADDR_LINKLOCAL)) {
+ ipv6_addr_type(target) != (IPV6_ADDR_UNICAST|IPV6_ADDR_LINKLOCAL)) {
ND_PRINTK2(KERN_WARNING
- "ICMPv6 Redirect: target address is not link-local.\n");
+ "ICMPv6 Redirect: target address is not link-local unicast.\n");
return;
}
for (i = 0; i < tp->md5sig_info->entries6; i++) {
if (ipv6_addr_cmp(&tp->md5sig_info->keys6[i].addr, addr) == 0)
- return (struct tcp_md5sig_key *)&tp->md5sig_info->keys6[i];
+ return &tp->md5sig_info->keys6[i].base;
}
return NULL;
}
key = (struct tcp6_md5sig_key*) tcp_v6_md5_do_lookup(sk, peer);
if (key) {
/* modify existing entry - just update that one */
- kfree(key->key);
- key->key = newkey;
- key->keylen = newkeylen;
+ kfree(key->base.key);
+ key->base.key = newkey;
+ key->base.keylen = newkeylen;
} else {
/* reallocate new list if current one is full. */
if (!tp->md5sig_info) {
ipv6_addr_copy(&tp->md5sig_info->keys6[tp->md5sig_info->entries6].addr,
peer);
- tp->md5sig_info->keys6[tp->md5sig_info->entries6].key = newkey;
- tp->md5sig_info->keys6[tp->md5sig_info->entries6].keylen = newkeylen;
+ tp->md5sig_info->keys6[tp->md5sig_info->entries6].base.key = newkey;
+ tp->md5sig_info->keys6[tp->md5sig_info->entries6].base.keylen = newkeylen;
tp->md5sig_info->entries6++;
}
for (i = 0; i < tp->md5sig_info->entries6; i++) {
if (ipv6_addr_cmp(&tp->md5sig_info->keys6[i].addr, peer) == 0) {
/* Free the key */
- kfree(tp->md5sig_info->keys6[i].key);
+ kfree(tp->md5sig_info->keys6[i].base.key);
tp->md5sig_info->entries6--;
if (tp->md5sig_info->entries6 == 0) {
if (tp->md5sig_info->entries6) {
for (i = 0; i < tp->md5sig_info->entries6; i++)
- kfree(tp->md5sig_info->keys6[i].key);
+ kfree(tp->md5sig_info->keys6[i].base.key);
tp->md5sig_info->entries6 = 0;
tcp_free_md5sig_pool();
}
if (tp->md5sig_info->entries4) {
for (i = 0; i < tp->md5sig_info->entries4; i++)
- kfree(tp->md5sig_info->keys4[i].key);
+ kfree(tp->md5sig_info->keys4[i].base.key);
tp->md5sig_info->entries4 = 0;
tcp_free_md5sig_pool();
}
}
-module_init(ieee80211_init);
+subsys_initcall(ieee80211_init);
module_exit(ieee80211_exit);
MODULE_DESCRIPTION("IEEE 802.11 subsystem");
}
-module_init(rate_control_simple_init);
+subsys_initcall(rate_control_simple_init);
module_exit(rate_control_simple_exit);
MODULE_DESCRIPTION("Simple rate control algorithm for ieee80211");
skb_queue_head_init(&q->requeued[i]);
q->queues[i] = qdisc_create_dflt(qd->dev, &pfifo_qdisc_ops,
qd->handle);
- if (q->queues[i] == 0) {
+ if (!q->queues[i]) {
q->queues[i] = &noop_qdisc;
printk(KERN_ERR "%s child qdisc %i creation failed", dev->name, i);
}
unsigned int qlen; /* number of nlmsgs in skb */
struct sk_buff *skb; /* pre-allocatd skb */
- struct nlmsghdr *lastnlh; /* netlink header of last msg in skb */
struct timer_list timer;
int peer_pid; /* PID of the peer process */
static int
__nfulnl_send(struct nfulnl_instance *inst)
{
- int status;
+ int status = -1;
if (inst->qlen > 1)
- inst->lastnlh->nlmsg_type = NLMSG_DONE;
+ NLMSG_PUT(inst->skb, 0, 0,
+ NLMSG_DONE,
+ sizeof(struct nfgenmsg));
status = nfnetlink_unicast(inst->skb, inst->peer_pid, MSG_DONTWAIT);
if (status < 0) {
inst->qlen = 0;
inst->skb = NULL;
- inst->lastnlh = NULL;
+nlmsg_failure:
return status;
}
}
nlh->nlmsg_len = inst->skb->tail - old_tail;
- inst->lastnlh = nlh;
return 0;
nlmsg_failure:
}
if (inst->qlen >= qthreshold ||
- (inst->skb && size > skb_tailroom(inst->skb))) {
+ (inst->skb && size >
+ skb_tailroom(inst->skb) - sizeof(struct nfgenmsg))) {
/* either the queue len is too high or we don't have
* enough room in the skb left. flush to userspace. */
UDEBUG("flushing old skb\n");
skb_reset_transport_header(skb);
- sk = rose_find_socket(lci_o, &rose_loopback_neigh);
+ sk = rose_find_socket(lci_o, rose_loopback_neigh);
if (sk) {
if (rose_process_rx_frame(sk, skb) == 0)
kfree_skb(skb);
if (frametype == ROSE_CALL_REQUEST) {
if ((dev = rose_dev_get(dest)) != NULL) {
- if (rose_rx_call_request(skb, dev, &rose_loopback_neigh, lci_o) == 0)
+ if (rose_rx_call_request(skb, dev, rose_loopback_neigh, lci_o) == 0)
kfree_skb(skb);
} else {
kfree_skb(skb);
static struct rose_route *rose_route_list;
static DEFINE_SPINLOCK(rose_route_list_lock);
-struct rose_neigh rose_loopback_neigh;
+struct rose_neigh *rose_loopback_neigh;
/*
* Add a new route to a node, and in the process add the node and the
*/
void rose_add_loopback_neigh(void)
{
- struct rose_neigh *sn = &rose_loopback_neigh;
+ struct rose_neigh *sn;
+
+ rose_loopback_neigh = kmalloc(sizeof(struct rose_neigh), GFP_KERNEL);
+ if (!rose_loopback_neigh)
+ return;
+ sn = rose_loopback_neigh;
sn->callsign = null_ax25_address;
sn->digipeat = NULL;
rose_node->mask = 10;
rose_node->count = 1;
rose_node->loopback = 1;
- rose_node->neighbour[0] = &rose_loopback_neigh;
+ rose_node->neighbour[0] = rose_loopback_neigh;
/* Insert at the head of list. Address is always mask=10 */
rose_node->next = rose_node_list;
rose_node_list = rose_node;
- rose_loopback_neigh.count++;
+ rose_loopback_neigh->count++;
out:
spin_unlock_bh(&rose_node_list_lock);
rose_remove_node(rose_node);
- rose_loopback_neigh.count--;
+ rose_loopback_neigh->count--;
out:
spin_unlock_bh(&rose_node_list_lock);
#ifdef CONFIG_NET_CLS_IND
if (tb[TCA_U32_INDEV-1]) {
- int err = tcf_change_indev(tp, n->indev, tb[TCA_U32_INDEV-1]);
+ err = tcf_change_indev(tp, n->indev, tb[TCA_U32_INDEV-1]);
if (err < 0)
goto errout;
}
#include <linux/init.h>
#include <linux/ipv6.h>
#include <linux/skbuff.h>
+#include <linux/jhash.h>
#include <net/ip.h>
#include <net/netlink.h>
#include <net/pkt_sched.h>
/* Variables */
struct timer_list perturb_timer;
- int perturbation;
+ u32 perturbation;
sfq_index tail; /* Index of current slot in round */
sfq_index max_depth; /* Maximal depth */
static __inline__ unsigned sfq_fold_hash(struct sfq_sched_data *q, u32 h, u32 h1)
{
- int pert = q->perturbation;
-
- /* Have we any rotation primitives? If not, WHY? */
- h ^= (h1<<pert) ^ (h1>>(0x1F - pert));
- h ^= h>>10;
- return h & 0x3FF;
+ return jhash_2words(h, h1, q->perturbation) & (SFQ_HASH_DIVISOR - 1);
}
static unsigned sfq_hash(struct sfq_sched_data *q, struct sk_buff *skb)
q->ht[hash] = x = q->dep[SFQ_DEPTH].next;
q->hash[x] = hash;
}
+ /* If selected queue has length q->limit, this means that
+ * all another queues are empty and that we do simple tail drop,
+ * i.e. drop _this_ packet.
+ */
+ if (q->qs[x].qlen >= q->limit)
+ return qdisc_drop(skb, sch);
+
sch->qstats.backlog += skb->len;
__skb_queue_tail(&q->qs[x], skb);
sfq_inc(q, x);
q->tail = x;
}
}
- if (++sch->q.qlen < q->limit-1) {
+ if (++sch->q.qlen <= q->limit) {
sch->bstats.bytes += skb->len;
sch->bstats.packets++;
return 0;
}
sch->qstats.backlog += skb->len;
__skb_queue_head(&q->qs[x], skb);
+ /* If selected queue has length q->limit+1, this means that
+ * all another queues are empty and we do simple tail drop.
+ * This packet is still requeued at head of queue, tail packet
+ * is dropped.
+ */
+ if (q->qs[x].qlen > q->limit) {
+ skb = q->qs[x].prev;
+ __skb_unlink(skb, &q->qs[x]);
+ sch->qstats.drops++;
+ sch->qstats.backlog -= skb->len;
+ kfree_skb(skb);
+ return NET_XMIT_CN;
+ }
sfq_inc(q, x);
if (q->qs[x].qlen == 1) { /* The flow is new */
if (q->tail == SFQ_DEPTH) { /* It is the first flow */
q->tail = x;
}
}
- if (++sch->q.qlen < q->limit - 1) {
+ if (++sch->q.qlen <= q->limit) {
sch->qstats.requeues++;
return 0;
}
struct Qdisc *sch = (struct Qdisc*)arg;
struct sfq_sched_data *q = qdisc_priv(sch);
- q->perturbation = net_random()&0x1F;
+ get_random_bytes(&q->perturbation, 4);
- if (q->perturb_period) {
- q->perturb_timer.expires = jiffies + q->perturb_period;
- add_timer(&q->perturb_timer);
- }
+ if (q->perturb_period)
+ mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
}
static int sfq_change(struct Qdisc *sch, struct rtattr *opt)
q->quantum = ctl->quantum ? : psched_mtu(sch->dev);
q->perturb_period = ctl->perturb_period*HZ;
if (ctl->limit)
- q->limit = min_t(u32, ctl->limit, SFQ_DEPTH);
+ q->limit = min_t(u32, ctl->limit, SFQ_DEPTH - 1);
qlen = sch->q.qlen;
- while (sch->q.qlen >= q->limit-1)
+ while (sch->q.qlen > q->limit)
sfq_drop(sch);
qdisc_tree_decrease_qlen(sch, qlen - sch->q.qlen);
del_timer(&q->perturb_timer);
if (q->perturb_period) {
- q->perturb_timer.expires = jiffies + q->perturb_period;
- add_timer(&q->perturb_timer);
+ mod_timer(&q->perturb_timer, jiffies + q->perturb_period);
+ get_random_bytes(&q->perturbation, 4);
}
sch_tree_unlock(sch);
return 0;
q->dep[i+SFQ_DEPTH].next = i+SFQ_DEPTH;
q->dep[i+SFQ_DEPTH].prev = i+SFQ_DEPTH;
}
- q->limit = SFQ_DEPTH;
+ q->limit = SFQ_DEPTH - 1;
q->max_depth = 0;
q->tail = SFQ_DEPTH;
if (opt == NULL) {
q->quantum = psched_mtu(sch->dev);
q->perturb_period = 0;
+ get_random_bytes(&q->perturbation, 4);
} else {
int err = sfq_change(sch, opt);
if (err)
* structure.
*/
int sctp_del_bind_addr(struct sctp_bind_addr *bp, union sctp_addr *del_addr,
- void (*rcu_call)(struct rcu_head *head,
+ void fastcall (*rcu_call)(struct rcu_head *head,
void (*func)(struct rcu_head *head)))
{
struct sctp_sockaddr_entry *addr, *temp;
if (SCTP_CID_SHUTDOWN_COMPLETE == ch->type)
goto discard;
+ /* RFC 4460, 2.11.2
+ * This will discard packets with INIT chunk bundled as
+ * subsequent chunks in the packet. When INIT is first,
+ * the normal INIT processing will discard the chunk.
+ */
+ if (SCTP_CID_INIT == ch->type && (void *)ch != skb->data)
+ goto discard;
+
/* RFC 8.4, 7) If the packet contains a "Stale cookie" ERROR
* or a COOKIE ACK the SCTP Packet should be silently
* discarded.
/* Force chunk->skb->data to chunk->chunk_end. */
skb_pull(chunk->skb,
chunk->chunk_end - chunk->skb->data);
+
+ /* Verify that we have at least chunk headers
+ * worth of buffer left.
+ */
+ if (skb_headlen(chunk->skb) < sizeof(sctp_chunkhdr_t)) {
+ sctp_chunk_free(chunk);
+ chunk = queue->in_progress = NULL;
+ }
}
}
return SCTP_ERROR_NO_ERROR;
}
+/* Verify the ASCONF packet before we process it. */
+int sctp_verify_asconf(const struct sctp_association *asoc,
+ struct sctp_paramhdr *param_hdr, void *chunk_end,
+ struct sctp_paramhdr **errp) {
+ sctp_addip_param_t *asconf_param;
+ union sctp_params param;
+ int length, plen;
+
+ param.v = (sctp_paramhdr_t *) param_hdr;
+ while (param.v <= chunk_end - sizeof(sctp_paramhdr_t)) {
+ length = ntohs(param.p->length);
+ *errp = param.p;
+
+ if (param.v > chunk_end - length ||
+ length < sizeof(sctp_paramhdr_t))
+ return 0;
+
+ switch (param.p->type) {
+ case SCTP_PARAM_ADD_IP:
+ case SCTP_PARAM_DEL_IP:
+ case SCTP_PARAM_SET_PRIMARY:
+ asconf_param = (sctp_addip_param_t *)param.v;
+ plen = ntohs(asconf_param->param_hdr.length);
+ if (plen < sizeof(sctp_addip_param_t) +
+ sizeof(sctp_paramhdr_t))
+ return 0;
+ break;
+ case SCTP_PARAM_SUCCESS_REPORT:
+ case SCTP_PARAM_ADAPTATION_LAYER_IND:
+ if (length != sizeof(sctp_addip_param_t))
+ return 0;
+
+ break;
+ default:
+ break;
+ }
+
+ param.v += WORD_ROUND(length);
+ }
+
+ if (param.v != chunk_end)
+ return 0;
+
+ return 1;
+}
+
/* Process an incoming ASCONF chunk with the next expected serial no. and
* return an ASCONF_ACK chunk to be sent in response.
*/
const sctp_subtype_t type,
void *arg,
sctp_cmd_seq_t *commands);
+static sctp_disposition_t sctp_sf_tabort_8_4_8(const struct sctp_endpoint *ep,
+ const struct sctp_association *asoc,
+ const sctp_subtype_t type,
+ void *arg,
+ sctp_cmd_seq_t *commands);
static struct sctp_sackhdr *sctp_sm_pull_sack(struct sctp_chunk *chunk);
static sctp_disposition_t sctp_stop_t1_and_abort(sctp_cmd_seq_t *commands,
struct sctp_transport *transport);
static sctp_disposition_t sctp_sf_abort_violation(
+ const struct sctp_endpoint *ep,
const struct sctp_association *asoc,
void *arg,
sctp_cmd_seq_t *commands,
void *arg,
sctp_cmd_seq_t *commands);
+static sctp_disposition_t sctp_sf_violation_paramlen(
+ const struct sctp_endpoint *ep,
+ const struct sctp_association *asoc,
+ const sctp_subtype_t type,
+ void *arg,
+ sctp_cmd_seq_t *commands);
+
static sctp_disposition_t sctp_sf_violation_ctsn(
const struct sctp_endpoint *ep,
const struct sctp_association *asoc,
void *arg,
sctp_cmd_seq_t *commands);
+static sctp_disposition_t sctp_sf_violation_chunk(
+ const struct sctp_endpoint *ep,
+ const struct sctp_association *asoc,
+ const sctp_subtype_t type,
+ void *arg,
+ sctp_cmd_seq_t *commands);
+
/* Small helper function that checks if the chunk length
* is of the appropriate length. The 'required_length' argument
* is set to be the size of a specific chunk we are testing.
struct sctp_chunk *chunk = arg;
struct sctp_ulpevent *ev;
+ if (!sctp_vtag_verify_either(chunk, asoc))
+ return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+
/* RFC 2960 6.10 Bundling
*
* An endpoint MUST NOT bundle INIT, INIT ACK or
* SHUTDOWN COMPLETE with any other chunks.
*/
if (!chunk->singleton)
- return SCTP_DISPOSITION_VIOLATION;
+ return sctp_sf_violation_chunk(ep, asoc, type, arg, commands);
- if (!sctp_vtag_verify_either(chunk, asoc))
- return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+ /* Make sure that the SHUTDOWN_COMPLETE chunk has a valid length. */
+ if (!sctp_chunk_length_valid(chunk, sizeof(sctp_chunkhdr_t)))
+ return sctp_sf_violation_chunklen(ep, asoc, type, arg,
+ commands);
/* RFC 2960 10.2 SCTP-to-ULP
*
if (!sctp_vtag_verify(chunk, asoc))
return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
- /* Make sure that the INIT-ACK chunk has a valid length */
- if (!sctp_chunk_length_valid(chunk, sizeof(sctp_initack_chunk_t)))
- return sctp_sf_violation_chunklen(ep, asoc, type, arg,
- commands);
/* 6.10 Bundling
* An endpoint MUST NOT bundle INIT, INIT ACK or
* SHUTDOWN COMPLETE with any other chunks.
*/
if (!chunk->singleton)
- return SCTP_DISPOSITION_VIOLATION;
+ return sctp_sf_violation_chunk(ep, asoc, type, arg, commands);
+ /* Make sure that the INIT-ACK chunk has a valid length */
+ if (!sctp_chunk_length_valid(chunk, sizeof(sctp_initack_chunk_t)))
+ return sctp_sf_violation_chunklen(ep, asoc, type, arg,
+ commands);
/* Grab the INIT header. */
chunk->subh.init_hdr = (sctp_inithdr_t *) chunk->skb->data;
* control endpoint, respond with an ABORT.
*/
if (ep == sctp_sk((sctp_get_ctl_sock()))->ep)
- return sctp_sf_ootb(ep, asoc, type, arg, commands);
+ return sctp_sf_tabort_8_4_8(ep, asoc, type, arg, commands);
/* Make sure that the COOKIE_ECHO chunk has a valid length.
* In this case, we check that we have enough for at least a
struct sctp_chunk *chunk = (struct sctp_chunk *) arg;
struct sctp_chunk *reply;
+ /* Make sure that the chunk has a valid length */
+ if (!sctp_chunk_length_valid(chunk, sizeof(sctp_chunkhdr_t)))
+ return sctp_sf_violation_chunklen(ep, asoc, type, arg,
+ commands);
+
/* Since we are not going to really process this INIT, there
* is no point in verifying chunk boundries. Just generate
* the SHUTDOWN ACK.
*
* The return value is the disposition of the chunk.
*/
-sctp_disposition_t sctp_sf_tabort_8_4_8(const struct sctp_endpoint *ep,
+static sctp_disposition_t sctp_sf_tabort_8_4_8(const struct sctp_endpoint *ep,
const struct sctp_association *asoc,
const sctp_subtype_t type,
void *arg,
SCTP_INC_STATS(SCTP_MIB_OUTCTRLCHUNKS);
+ sctp_sf_pdiscard(ep, asoc, type, arg, commands);
return SCTP_DISPOSITION_CONSUME;
}
ch = (sctp_chunkhdr_t *) chunk->chunk_hdr;
do {
- /* Break out if chunk length is less then minimal. */
+ /* Report violation if the chunk is less then minimal */
if (ntohs(ch->length) < sizeof(sctp_chunkhdr_t))
- break;
-
- ch_end = ((__u8 *)ch) + WORD_ROUND(ntohs(ch->length));
- if (ch_end > skb_tail_pointer(skb))
- break;
+ return sctp_sf_violation_chunklen(ep, asoc, type, arg,
+ commands);
+ /* Now that we know we at least have a chunk header,
+ * do things that are type appropriate.
+ */
if (SCTP_CID_SHUTDOWN_ACK == ch->type)
ootb_shut_ack = 1;
if (SCTP_CID_ABORT == ch->type)
return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+ /* Report violation if chunk len overflows */
+ ch_end = ((__u8 *)ch) + WORD_ROUND(ntohs(ch->length));
+ if (ch_end > skb_tail_pointer(skb))
+ return sctp_sf_violation_chunklen(ep, asoc, type, arg,
+ commands);
+
ch = (sctp_chunkhdr_t *) ch_end;
} while (ch_end < skb_tail_pointer(skb));
if (ootb_shut_ack)
- sctp_sf_shut_8_4_5(ep, asoc, type, arg, commands);
+ return sctp_sf_shut_8_4_5(ep, asoc, type, arg, commands);
else
- sctp_sf_tabort_8_4_8(ep, asoc, type, arg, commands);
-
- return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
+ return sctp_sf_tabort_8_4_8(ep, asoc, type, arg, commands);
}
/*
if (!sctp_chunk_length_valid(chunk, sizeof(sctp_chunkhdr_t)))
return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
- return SCTP_DISPOSITION_CONSUME;
+ /* We need to discard the rest of the packet to prevent
+ * potential bomming attacks from additional bundled chunks.
+ * This is documented in SCTP Threats ID.
+ */
+ return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
}
return SCTP_DISPOSITION_NOMEM;
void *arg,
sctp_cmd_seq_t *commands)
{
+ struct sctp_chunk *chunk = arg;
+
+ /* Make sure that the SHUTDOWN_ACK chunk has a valid length. */
+ if (!sctp_chunk_length_valid(chunk, sizeof(sctp_chunkhdr_t)))
+ return sctp_sf_violation_chunklen(ep, asoc, type, arg,
+ commands);
+
/* Although we do have an association in this case, it corresponds
* to a restarted association. So the packet is treated as an OOTB
* packet and the state function that handles OOTB SHUTDOWN_ACK is
{
struct sctp_chunk *chunk = arg;
struct sctp_chunk *asconf_ack = NULL;
+ struct sctp_paramhdr *err_param = NULL;
sctp_addiphdr_t *hdr;
+ union sctp_addr_param *addr_param;
__u32 serial;
+ int length;
if (!sctp_vtag_verify(chunk, asoc)) {
sctp_add_cmd_sf(commands, SCTP_CMD_REPORT_BAD_TAG,
hdr = (sctp_addiphdr_t *)chunk->skb->data;
serial = ntohl(hdr->serial);
+ addr_param = (union sctp_addr_param *)hdr->params;
+ length = ntohs(addr_param->p.length);
+ if (length < sizeof(sctp_paramhdr_t))
+ return sctp_sf_violation_paramlen(ep, asoc, type,
+ (void *)addr_param, commands);
+
+ /* Verify the ASCONF chunk before processing it. */
+ if (!sctp_verify_asconf(asoc,
+ (sctp_paramhdr_t *)((void *)addr_param + length),
+ (void *)chunk->chunk_end,
+ &err_param))
+ return sctp_sf_violation_paramlen(ep, asoc, type,
+ (void *)&err_param, commands);
+
/* ADDIP 4.2 C1) Compare the value of the serial number to the value
* the endpoint stored in a new association variable
* 'Peer-Serial-Number'.
struct sctp_chunk *asconf_ack = arg;
struct sctp_chunk *last_asconf = asoc->addip_last_asconf;
struct sctp_chunk *abort;
+ struct sctp_paramhdr *err_param = NULL;
sctp_addiphdr_t *addip_hdr;
__u32 sent_serial, rcvd_serial;
addip_hdr = (sctp_addiphdr_t *)asconf_ack->skb->data;
rcvd_serial = ntohl(addip_hdr->serial);
+ /* Verify the ASCONF-ACK chunk before processing it. */
+ if (!sctp_verify_asconf(asoc,
+ (sctp_paramhdr_t *)addip_hdr->params,
+ (void *)asconf_ack->chunk_end,
+ &err_param))
+ return sctp_sf_violation_paramlen(ep, asoc, type,
+ (void *)&err_param, commands);
+
if (last_asconf) {
addip_hdr = (sctp_addiphdr_t *)last_asconf->subh.addip_hdr;
sent_serial = ntohl(addip_hdr->serial);
void *arg,
sctp_cmd_seq_t *commands)
{
+ struct sctp_chunk *chunk = arg;
+
+ /* Make sure that the chunk has a valid length.
+ * Since we don't know the chunk type, we use a general
+ * chunkhdr structure to make a comparison.
+ */
+ if (!sctp_chunk_length_valid(chunk, sizeof(sctp_chunkhdr_t)))
+ return sctp_sf_violation_chunklen(ep, asoc, type, arg,
+ commands);
+
SCTP_DEBUG_PRINTK("Chunk %d is discarded\n", type.chunk);
return SCTP_DISPOSITION_DISCARD;
}
void *arg,
sctp_cmd_seq_t *commands)
{
+ struct sctp_chunk *chunk = arg;
+
+ /* Make sure that the chunk has a valid length. */
+ if (!sctp_chunk_length_valid(chunk, sizeof(sctp_chunkhdr_t)))
+ return sctp_sf_violation_chunklen(ep, asoc, type, arg,
+ commands);
+
return SCTP_DISPOSITION_VIOLATION;
}
* Common function to handle a protocol violation.
*/
static sctp_disposition_t sctp_sf_abort_violation(
+ const struct sctp_endpoint *ep,
const struct sctp_association *asoc,
void *arg,
sctp_cmd_seq_t *commands,
const __u8 *payload,
const size_t paylen)
{
+ struct sctp_packet *packet = NULL;
struct sctp_chunk *chunk = arg;
struct sctp_chunk *abort = NULL;
if (!abort)
goto nomem;
- sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort));
- SCTP_INC_STATS(SCTP_MIB_OUTCTRLCHUNKS);
+ if (asoc) {
+ sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort));
+ SCTP_INC_STATS(SCTP_MIB_OUTCTRLCHUNKS);
- if (asoc->state <= SCTP_STATE_COOKIE_ECHOED) {
- sctp_add_cmd_sf(commands, SCTP_CMD_TIMER_STOP,
- SCTP_TO(SCTP_EVENT_TIMEOUT_T1_INIT));
- sctp_add_cmd_sf(commands, SCTP_CMD_SET_SK_ERR,
- SCTP_ERROR(ECONNREFUSED));
- sctp_add_cmd_sf(commands, SCTP_CMD_INIT_FAILED,
- SCTP_PERR(SCTP_ERROR_PROTO_VIOLATION));
+ if (asoc->state <= SCTP_STATE_COOKIE_ECHOED) {
+ sctp_add_cmd_sf(commands, SCTP_CMD_TIMER_STOP,
+ SCTP_TO(SCTP_EVENT_TIMEOUT_T1_INIT));
+ sctp_add_cmd_sf(commands, SCTP_CMD_SET_SK_ERR,
+ SCTP_ERROR(ECONNREFUSED));
+ sctp_add_cmd_sf(commands, SCTP_CMD_INIT_FAILED,
+ SCTP_PERR(SCTP_ERROR_PROTO_VIOLATION));
+ } else {
+ sctp_add_cmd_sf(commands, SCTP_CMD_SET_SK_ERR,
+ SCTP_ERROR(ECONNABORTED));
+ sctp_add_cmd_sf(commands, SCTP_CMD_ASSOC_FAILED,
+ SCTP_PERR(SCTP_ERROR_PROTO_VIOLATION));
+ SCTP_DEC_STATS(SCTP_MIB_CURRESTAB);
+ }
} else {
- sctp_add_cmd_sf(commands, SCTP_CMD_SET_SK_ERR,
- SCTP_ERROR(ECONNABORTED));
- sctp_add_cmd_sf(commands, SCTP_CMD_ASSOC_FAILED,
- SCTP_PERR(SCTP_ERROR_PROTO_VIOLATION));
- SCTP_DEC_STATS(SCTP_MIB_CURRESTAB);
+ packet = sctp_ootb_pkt_new(asoc, chunk);
+
+ if (!packet)
+ goto nomem_pkt;
+
+ if (sctp_test_T_bit(abort))
+ packet->vtag = ntohl(chunk->sctp_hdr->vtag);
+
+ abort->skb->sk = ep->base.sk;
+
+ sctp_packet_append_chunk(packet, abort);
+
+ sctp_add_cmd_sf(commands, SCTP_CMD_SEND_PKT,
+ SCTP_PACKET(packet));
+
+ SCTP_INC_STATS(SCTP_MIB_OUTCTRLCHUNKS);
}
- sctp_add_cmd_sf(commands, SCTP_CMD_DISCARD_PACKET, SCTP_NULL());
+ sctp_sf_pdiscard(ep, asoc, SCTP_ST_CHUNK(0), arg, commands);
SCTP_INC_STATS(SCTP_MIB_ABORTEDS);
return SCTP_DISPOSITION_ABORT;
+nomem_pkt:
+ sctp_chunk_free(abort);
nomem:
return SCTP_DISPOSITION_NOMEM;
}
{
char err_str[]="The following chunk had invalid length:";
- return sctp_sf_abort_violation(asoc, arg, commands, err_str,
+ return sctp_sf_abort_violation(ep, asoc, arg, commands, err_str,
+ sizeof(err_str));
+}
+
+/*
+ * Handle a protocol violation when the parameter length is invalid.
+ * "Invalid" length is identified as smaller then the minimal length a
+ * given parameter can be.
+ */
+static sctp_disposition_t sctp_sf_violation_paramlen(
+ const struct sctp_endpoint *ep,
+ const struct sctp_association *asoc,
+ const sctp_subtype_t type,
+ void *arg,
+ sctp_cmd_seq_t *commands) {
+ char err_str[] = "The following parameter had invalid length:";
+
+ return sctp_sf_abort_violation(ep, asoc, arg, commands, err_str,
sizeof(err_str));
}
{
char err_str[]="The cumulative tsn ack beyond the max tsn currently sent:";
- return sctp_sf_abort_violation(asoc, arg, commands, err_str,
+ return sctp_sf_abort_violation(ep, asoc, arg, commands, err_str,
sizeof(err_str));
}
+/* Handle protocol violation of an invalid chunk bundling. For example,
+ * when we have an association and we recieve bundled INIT-ACK, or
+ * SHUDOWN-COMPLETE, our peer is clearly violationg the "MUST NOT bundle"
+ * statement from the specs. Additinally, there might be an attacker
+ * on the path and we may not want to continue this communication.
+ */
+static sctp_disposition_t sctp_sf_violation_chunk(
+ const struct sctp_endpoint *ep,
+ const struct sctp_association *asoc,
+ const sctp_subtype_t type,
+ void *arg,
+ sctp_cmd_seq_t *commands)
+{
+ char err_str[]="The following chunk violates protocol:";
+
+ if (!asoc)
+ return sctp_sf_violation(ep, asoc, type, arg, commands);
+
+ return sctp_sf_abort_violation(ep, asoc, arg, commands, err_str,
+ sizeof(err_str));
+}
/***************************************************************************
* These are the state functions for handling primitive (Section 10) events.
***************************************************************************/
* association exists, otherwise, use the peer's vtag.
*/
if (asoc) {
- vtag = asoc->peer.i.init_tag;
+ /* Special case the INIT-ACK as there is no peer's vtag
+ * yet.
+ */
+ switch(chunk->chunk_hdr->type) {
+ case SCTP_CID_INIT_ACK:
+ {
+ sctp_initack_chunk_t *initack;
+
+ initack = (sctp_initack_chunk_t *)chunk->chunk_hdr;
+ vtag = ntohl(initack->init_hdr.init_tag);
+ break;
+ }
+ default:
+ vtag = asoc->peer.i.init_tag;
+ break;
+ }
} else {
/* Special case the INIT and stale COOKIE_ECHO as there is no
* vtag yet.
/* SCTP_STATE_EMPTY */ \
TYPE_SCTP_FUNC(sctp_sf_ootb), \
/* SCTP_STATE_CLOSED */ \
- TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
+ TYPE_SCTP_FUNC(sctp_sf_ootb), \
/* SCTP_STATE_COOKIE_WAIT */ \
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
/* SCTP_STATE_COOKIE_ECHOED */ \
/* SCTP_STATE_EMPTY */ \
TYPE_SCTP_FUNC(sctp_sf_ootb), \
/* SCTP_STATE_CLOSED */ \
- TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
+ TYPE_SCTP_FUNC(sctp_sf_ootb), \
/* SCTP_STATE_COOKIE_WAIT */ \
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
/* SCTP_STATE_COOKIE_ECHOED */ \
/* SCTP_STATE_EMPTY */ \
TYPE_SCTP_FUNC(sctp_sf_ootb), \
/* SCTP_STATE_CLOSED */ \
- TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
+ TYPE_SCTP_FUNC(sctp_sf_ootb), \
/* SCTP_STATE_COOKIE_WAIT */ \
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
/* SCTP_STATE_COOKIE_ECHOED */ \
/* SCTP_STATE_EMPTY */ \
TYPE_SCTP_FUNC(sctp_sf_ootb), \
/* SCTP_STATE_CLOSED */ \
- TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
+ TYPE_SCTP_FUNC(sctp_sf_ootb), \
/* SCTP_STATE_COOKIE_WAIT */ \
TYPE_SCTP_FUNC(sctp_sf_violation), \
/* SCTP_STATE_COOKIE_ECHOED */ \
/* SCTP_STATE_EMPTY */ \
TYPE_SCTP_FUNC(sctp_sf_ootb), \
/* SCTP_STATE_CLOSED */ \
- TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
+ TYPE_SCTP_FUNC(sctp_sf_ootb), \
/* SCTP_STATE_COOKIE_WAIT */ \
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
/* SCTP_STATE_COOKIE_ECHOED */ \
/* SCTP_STATE_EMPTY */ \
TYPE_SCTP_FUNC(sctp_sf_ootb), \
/* SCTP_STATE_CLOSED */ \
- TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
+ TYPE_SCTP_FUNC(sctp_sf_ootb), \
/* SCTP_STATE_COOKIE_WAIT */ \
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
/* SCTP_STATE_COOKIE_ECHOED */ \
/* SCTP_STATE_EMPTY */ \
TYPE_SCTP_FUNC(sctp_sf_ootb), \
/* SCTP_STATE_CLOSED */ \
- TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
+ TYPE_SCTP_FUNC(sctp_sf_ootb), \
/* SCTP_STATE_COOKIE_WAIT */ \
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
/* SCTP_STATE_COOKIE_ECHOED */ \
/* SCTP_STATE_EMPTY */
TYPE_SCTP_FUNC(sctp_sf_ootb),
/* SCTP_STATE_CLOSED */
- TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8),
+ TYPE_SCTP_FUNC(sctp_sf_ootb),
/* SCTP_STATE_COOKIE_WAIT */
TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
/* SCTP_STATE_COOKIE_ECHOED */
if (pos != 0)
return -ESPIPE;
- if (iocb->ki_left == 0) /* Match SYS5 behaviour */
- return 0;
-
x = alloc_sock_iocb(iocb, &siocb);
if (!x)
return -ENOMEM;
serv->sv_name);
printk(KERN_NOTICE
"%s: last TCP connect from %s\n",
- serv->sv_name, buf);
+ serv->sv_name, __svc_print_addr(sin,
+ buf, sizeof(buf)));
}
/*
* Always select the oldest socket. It's not fair,
out_fail_sysfs:
return err;
}
-module_init(cfg80211_init);
+subsys_initcall(cfg80211_init);
static void cfg80211_exit(void)
{
cfg80211_dev_free(rdev);
}
+#ifdef CONFIG_HOTPLUG
static int wiphy_uevent(struct device *dev, char **envp,
int num_envp, char *buf, int size)
{
/* TODO, we probably need stuff here */
return 0;
}
+#endif
struct class ieee80211_class = {
.name = "ieee80211",
}
enum {
+ Opt_error = -1,
Opt_context = 1,
Opt_fscontext = 2,
Opt_defcontext = 4,
{Opt_fscontext, "fscontext=%s"},
{Opt_defcontext, "defcontext=%s"},
{Opt_rootcontext, "rootcontext=%s"},
+ {Opt_error, NULL},
};
#define SEL_MOUNT_FAIL_MSG "SELinux: duplicate or incompatible mount options\n"
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/mm.h>
+#include <linux/seq_file.h>
#include <asm/uaccess.h>
#include <linux/dma-mapping.h>
#include <linux/moduleparam.h>
#define SND_MEM_PROC_FILE "driver/snd-page-alloc"
static struct proc_dir_entry *snd_mem_proc;
-static int snd_mem_proc_read(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int snd_mem_proc_read(struct seq_file *seq, void *offset)
{
- int len = 0;
long pages = snd_allocated_pages >> (PAGE_SHIFT-12);
struct snd_mem_list *mem;
int devno;
static char *types[] = { "UNKNOWN", "CONT", "DEV", "DEV-SG", "SBUS" };
mutex_lock(&list_mutex);
- len += snprintf(page + len, count - len,
- "pages : %li bytes (%li pages per %likB)\n",
- pages * PAGE_SIZE, pages, PAGE_SIZE / 1024);
+ seq_printf(seq, "pages : %li bytes (%li pages per %likB)\n",
+ pages * PAGE_SIZE, pages, PAGE_SIZE / 1024);
devno = 0;
list_for_each_entry(mem, &mem_list_head, list) {
devno++;
- len += snprintf(page + len, count - len,
- "buffer %d : ID %08x : type %s\n",
- devno, mem->id, types[mem->buffer.dev.type]);
- len += snprintf(page + len, count - len,
- " addr = 0x%lx, size = %d bytes\n",
- (unsigned long)mem->buffer.addr, (int)mem->buffer.bytes);
+ seq_printf(seq, "buffer %d : ID %08x : type %s\n",
+ devno, mem->id, types[mem->buffer.dev.type]);
+ seq_printf(seq, " addr = 0x%lx, size = %d bytes\n",
+ (unsigned long)mem->buffer.addr,
+ (int)mem->buffer.bytes);
}
mutex_unlock(&list_mutex);
- return len;
+ return 0;
+}
+
+static int snd_mem_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, snd_mem_proc_read, NULL);
}
/* FIXME: for pci only - other bus? */
#ifdef CONFIG_PCI
#define gettoken(bufp) strsep(bufp, " \t\n")
-static int snd_mem_proc_write(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
+static ssize_t snd_mem_proc_write(struct file *file, const char __user * buffer,
+ size_t count, loff_t * ppos)
{
char buf[128];
char *token, *p;
- if (count > ARRAY_SIZE(buf) - 1)
- count = ARRAY_SIZE(buf) - 1;
+ if (count > sizeof(buf) - 1)
+ return -EINVAL;
if (copy_from_user(buf, buffer, count))
return -EFAULT;
- buf[ARRAY_SIZE(buf) - 1] = '\0';
+ buf[count] = '\0';
p = buf;
token = gettoken(&p);
if (! token || *token == '#')
- return (int)count;
+ return count;
if (strcmp(token, "add") == 0) {
char *endp;
int vendor, device, size, buffers;
(buffers = simple_strtol(token, NULL, 0)) <= 0 ||
buffers > 4) {
printk(KERN_ERR "snd-page-alloc: invalid proc write format\n");
- return (int)count;
+ return count;
}
vendor &= 0xffff;
device &= 0xffff;
if (pci_set_dma_mask(pci, mask) < 0 ||
pci_set_consistent_dma_mask(pci, mask) < 0) {
printk(KERN_ERR "snd-page-alloc: cannot set DMA mask %lx for pci %04x:%04x\n", mask, vendor, device);
- return (int)count;
+ return count;
}
}
for (i = 0; i < buffers; i++) {
size, &dmab) < 0) {
printk(KERN_ERR "snd-page-alloc: cannot allocate buffer pages (size = %d)\n", size);
pci_dev_put(pci);
- return (int)count;
+ return count;
}
snd_dma_reserve_buf(&dmab, snd_dma_pci_buf_id(pci));
}
free_all_reserved_pages();
else
printk(KERN_ERR "snd-page-alloc: invalid proc cmd\n");
- return (int)count;
+ return count;
}
#endif /* CONFIG_PCI */
+
+static const struct file_operations snd_mem_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = snd_mem_proc_open,
+ .read = seq_read,
+#ifdef CONFIG_PCI
+ .write = snd_mem_proc_write,
+#endif
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
#endif /* CONFIG_PROC_FS */
/*
{
#ifdef CONFIG_PROC_FS
snd_mem_proc = create_proc_entry(SND_MEM_PROC_FILE, 0644, NULL);
- if (snd_mem_proc) {
- snd_mem_proc->read_proc = snd_mem_proc_read;
-#ifdef CONFIG_PCI
- snd_mem_proc->write_proc = snd_mem_proc_write;
-#endif
- }
+ if (snd_mem_proc)
+ snd_mem_proc->proc_fops = &snd_mem_proc_fops;
#endif
return 0;
}
projects / linux-beck.git / commitdiff