Blackfin: BF51x/BF52x: support GPIO Hysteresis/Schmitt Trigger options
Newer parts have optional Hysteresis/Schmitt Trigger options to help with
dirty signals. So add some kconfig options for tuning this and enable it
by default for people.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Blackfin: make sure mmiowb inserts a write barrier with SSYNC
Add SSYNC to our implementation of I/O write barrier to ensure ordering
of I/O space writes. This will make sure that writes following the
barrier will arrive after all previous writes.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Blackfin: fix DMA/cache bug when resuming from suspend to RAM
The dma_memcpy() function takes care of flushing different caches for us.
Normally this is what we want, but when resuming from mem, we don't yet
have caches enabled. If these functions happen to be placed into L1 mem
(which is what we're trying to relocate), then things aren't going to
work. So define a non-cache dma_memcpy() variant to utilize in situations
like this.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Mike Frysinger [Wed, 9 Jun 2010 03:02:09 +0000 (03:02 +0000)]
Blackfin: BF51x: fix handling of PH8 (the "internal" SPI0SEL4 pin)
Even though the PH8 pin is only internal to the processor packaging, it
can be controlled like any other GPIO pin. Now that we have a proper GPIO
define, we can fix the SPI0 CS4 define for the internal SPI flash.
Mike Frysinger [Wed, 2 Jun 2010 04:22:01 +0000 (04:22 +0000)]
Blackfin: gpio: unify & clean up reserved map handling
The duplicated bit banging logic is getting out of hand, so unify the
local API to make management a lot easier. This also makes the code
a lot easier to follow.
Mike Frysinger [Thu, 27 May 2010 22:46:46 +0000 (22:46 +0000)]
Blackfin: allow cache funcs to be in L1 for IFLUSH Anomaly 05000491
Anomaly 05000491 says that IFLUSH cannot have certain types of memory
stalls triggered before it has completed in order to function correctly.
One such condition is that it be in L1 instruction. So add a config
option to move it there, default it to on, and throw up a warning when
it is turned off and this anomaly exists.
Since the anomaly should be worked around, we can drop the older method
of calling IFLUSH multiple times.
Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Mike Frysinger [Thu, 27 May 2010 22:40:26 +0000 (22:40 +0000)]
Blackfin: merge anomalies 475 and 220 to follow official lists
Design found that these anomalies had the same root issue, so they've
merged 475 into 220. We need to do the same to update to the latest
anomaly sheets.
Linus Torvalds [Thu, 5 Aug 2010 23:02:01 +0000 (16:02 -0700)]
Merge branch 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (204 commits)
agp: intel-agp: do not use PCI resources before pci_enable_device()
agp: efficeon-agp: do not use PCI resources before pci_enable_device()
drm: kill BKL from common code
drm/kms: Simplify setup of the initial I2C encoder config.
drm,io-mapping: Specify slot to use for atomic mappings
drm/radeon/kms: only expose underscan on avivo chips
drm/radeon: add new pci ids
drm: Cleanup after failing to create master->unique and dev->name
drm/radeon: tone down overchatty acpi debug messages.
drm/radeon/kms: enable underscan option for digital connectors
drm/radeon/kms: fix calculation of h/v scaling factors
drm/radeon/kms/igp: sideport is AMD only
drm/radeon/kms: handle the case of no active displays properly in the bandwidth code
drm: move ttm global code to core drm
drm/i915: Clear the Ironlake dithering flags when the pipe doesn't want it.
drm/radeon/kms: make sure HPD is set to NONE on analog-only connectors
drm/radeon/kms: make sure rio_mem is valid before unmapping it
drm/agp/i915: trim stolen space to 32M
drm/i915: Unset cursor if out-of-bounds upon mode change (v4)
drm/i915: Unreference object not handle on creation
...
Linus Torvalds [Thu, 5 Aug 2010 23:00:44 +0000 (16:00 -0700)]
Merge branch 'kms-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb
* 'kms-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:
kgdb,docs: Update the kgdb docs to include kms
drm_fb_helper: Preserve capability to use atomic kms
i915: when kgdb is active display compression should be off
drm/i915: use new fb debug hooks
drm: add KGDB/KDB support
fb: add hooks to handle KDB enter/exit
kgdboc: Add call backs to allow kernel mode switching
vt,console,kdb: automatically set kdb LINES variable
vt,console,kdb: implement atomic console enter/leave functions
Linus Torvalds [Thu, 5 Aug 2010 22:59:48 +0000 (15:59 -0700)]
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:
debug_core,kdb: fix crash when arch does not have single step
kgdb,x86: use macro HBP_NUM to replace magic number 4
kgdb,mips: remove unused kgdb_cpu_doing_single_step operations
mm,kdb,kgdb: Add a debug reference for the kdb kmap usage
KGDB: Remove set but unused newPC
ftrace,kdb: Allow dumping a specific cpu's buffer with ftdump
ftrace,kdb: Extend kdb to be able to dump the ftrace buffer
kgdb,powerpc: Replace hardcoded offset by BREAK_INSTR_SIZE
arm,kgdb: Add ability to trap into debugger on notify_die
gdbstub: do not directly use dbg_reg_def[] in gdb_cmd_reg_set()
gdbstub: Implement gdbserial 'p' and 'P' packets
kgdb,arm: Individual register get/set for arm
kgdb,mips: Individual register get/set for mips
kgdb,x86: Individual register get/set for x86
kgdb,kdb: individual register set and and get API
gdbstub: Optimize kgdb's "thread:" response for the gdb serial protocol
kgdb: remove custom hex_to_bin()implementation
Linus Torvalds [Thu, 5 Aug 2010 22:57:35 +0000 (15:57 -0700)]
Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6
* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6: (63 commits)
of/platform: Register of_platform_drivers with an "of:" prefix
of/address: Clean up function declarations
of/spi: call of_register_spi_devices() from spi core code
of: Provide default of_node_to_nid() implementation.
of/device: Make of_device_make_bus_id() usable by other code.
of/irq: Fix endian issues in parsing interrupt specifiers
of: Fix phandle endian issues
of/flattree: fix of_flat_dt_is_compatible() to match the full compatible string
of: remove of_default_bus_ids
of: make of_find_device_by_node generic
microblaze: remove references to of_device and to_of_device
sparc: remove references to of_device and to_of_device
powerpc: remove references to of_device and to_of_device
of/device: Replace of_device with platform_device in includes and core code
of/device: Protect against binding of_platform_drivers to non-OF devices
of: remove asm/of_device.h
of: remove asm/of_platform.h
of/platform: remove all of_bus_type and of_platform_bus_type references
of: Merge of_platform_bus_type with platform_bus_type
drivercore/of: Add OF style matching to platform bus
...
Fix up trivial conflicts in arch/microblaze/kernel/Makefile due to just
some obj-y removals by the devicetree branch, while the microblaze
updates added a new file.
Linus Torvalds [Thu, 5 Aug 2010 21:20:14 +0000 (14:20 -0700)]
Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6
* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
scripts/dtc: Fix a resource leak
Documentation: fix ubuntu distro name
MAINTAINERS: Update kbuild git URLs
Add support for the C variable in the coccicheck script
Add scripts/coccinelle/deref_null.cocci
Add scripts/coccinelle/err_cast.cocci
Add scripts/coccinelle/resource_size.cocci
Add scripts/coccinelle/alloc/kzalloc-simple.cocci
Add scripts/coccinelle/alloc/drop_kmalloc_cast.cocci
Add Documentation/coccinelle.txt
Add a target to use the Coccinelle checker
scripts: decodecode: remove bashisms
Makefile: clarify a comment
checkkconfigsymbols.sh: Kconfig symbols sometimes have lowercase letters
scripts: add nconf into gitignore file
Linus Torvalds [Thu, 5 Aug 2010 21:19:50 +0000 (14:19 -0700)]
Merge branch 'packaging' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6
* 'packaging' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
kbuild: Change section of generated debian packages to kernel
kbuild: Mark that the packages generated conform to Standards-Version 3.8.4
kbuild: Add homepage field to debian/control file
Linus Torvalds [Thu, 5 Aug 2010 21:12:07 +0000 (14:12 -0700)]
Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6
* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: (26 commits)
kconfig: add savedefconfig
kconfig: code refactoring in confdata.c
kconfig: refactor code in symbol.c
kconfig: add alldefconfig
kconfig: print more info when we see a recursive dependency
kconfig: save location of config symbols
kconfig: change nonint_oldconfig to listnewconfig
kconfig: rename loose_nonint_oldconfig => oldnoconfig
kconfig: use long options in conf
kconfig: fix MODULES-related bug in case of no .config
kconfig: make randconfig fair for booleans
kconfig: Don't write invisible choice values
kbuild: Warn on selecting symbols with unmet direct dependencies
scripts:conf.c Fix warning: variable 'type' set but not used
menuconfig: truncate list items
menuconfig: fix to center checklist correctly in a corner case
xconfig: add support to show hidden options which have prompts
xconfig: remove unused function
xconfig: clean up
gconfig: fix null pointer warning
...
Linus Torvalds [Thu, 5 Aug 2010 21:10:07 +0000 (14:10 -0700)]
Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6
* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
modpost: support objects with more than 64k sections
trivial: fix a typo in a filename
frv: clean up arch/frv/Makefile
kbuild: allow assignment to {A,C}FLAGS_KERNEL on the command line
kbuild: allow assignment to {A,C,LD}FLAGS_MODULE on the command line
Kbuild: Add option to set -femit-struct-debug-baseonly
Makefile: "make kernelrelease" should show the correct full kernel version
Makefile.build: make KBUILD_SYMTYPES work again
Linus Torvalds [Thu, 5 Aug 2010 20:45:50 +0000 (13:45 -0700)]
Merge branch 'upstream/xen' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen
* 'upstream/xen' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen: (23 commits)
xen/panic: use xen_reboot and fix smp_send_stop
Xen: register panic notifier to take crashes of xen guests on panic
xen: support large numbers of CPUs with vcpu info placement
xen: drop xen_sched_clock in favour of using plain wallclock time
pvops: do not notify callers from register_xenstore_notifier
Introduce CONFIG_XEN_PVHVM compile option
blkfront: do not create a PV cdrom device if xen_hvm_guest
support multiple .discard.* sections to avoid section type conflicts
xen/pvhvm: fix build problem when !CONFIG_XEN
xenfs: enable for HVM domains too
x86: Call HVMOP_pagetable_dying on exit_mmap.
x86: Unplug emulated disks and nics.
x86: Use xen_vcpuop_clockevent, xen_clocksource and xen wallclock.
implement O_NONBLOCK for /proc/xen/xenbus
xen: Fix find_unbound_irq in presence of ioapic irqs.
xen: Add suspend/resume support for PV on HVM guests.
xen: Xen PCI platform device driver.
x86/xen: event channels delivery on HVM.
x86: early PV on HVM features initialization.
xen: Add support for HVM hypercalls.
...
Update section 3.3 Loadable module goals - obj-m, from $(<module_name>-objs)
to $(<module_name>-y) for easier addition of conditional objects to the
module. The examples are also updated to reflect the current state of
each Makefile used.
Signed-off-by: matt mooney <mfm@muteddisk.com> Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Satoru Takeuchi [Thu, 5 Aug 2010 18:23:11 +0000 (11:23 -0700)]
aio: fix wrong subsystem comments
- sys_io_destroy(): acutually return -EINVAL if the context pointed to
is invalidIndex: linux-2.6.33-rc4/fs/aio.c
- sys_io_getevents(): An argument specifying timeout is not `when',
but `timeout'.
- sys_io_getevents(): Should describe what is returned if this syscall
succeeds.
Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 5 Aug 2010 16:03:46 +0000 (09:03 -0700)]
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (79 commits)
powerpc/8xx: Add support for the MPC8xx based boards from TQC
powerpc/85xx: Introduce support for the Freescale P1022DS reference board
powerpc/85xx: Adding DTS for the STx GP3-SSA MPC8555 board
powerpc/85xx: Change deprecated binding for 85xx-based boards
powerpc/tqm85xx: add a quirk for ti1520 PCMCIA bridge
powerpc/tqm85xx: update PCI interrupt-map attribute
powerpc/mpc8308rdb: support for MPC8308RDB board from Freescale
powerpc/fsl_pci: add quirk for mpc8308 pcie bridge
powerpc/85xx: Cleanup QE initialization for MPC85xxMDS boards
powerpc/85xx: Fix booting for P1021MDS boards
powerpc/85xx: Fix SWIOTLB initalization for MPC85xxMDS boards
powerpc/85xx: kexec for SMP 85xx BookE systems
powerpc/5200/i2c: improve i2c bus error recovery
of/xilinxfb: update tft compatible versions
powerpc/fsl-diu-fb: Support setting display mode using EDID
powerpc/5121: doc/dts-bindings: update doc of FSL DIU bindings
powerpc/5121: shared DIU framebuffer support
powerpc/5121: move fsl-diu-fb.h to include/linux
powerpc/5121: fsl-diu-fb: fix issue with re-enabling DIU area descriptor
powerpc/512x: add clock structure for Video-IN (VIU) unit
...
Linus Torvalds [Thu, 5 Aug 2010 15:59:22 +0000 (08:59 -0700)]
Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze
* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze: (49 commits)
microblaze: Add KGDB support
microblaze: Support brki rX, 0x18 for user application debugging
microblaze: Remove nop after MSRCLR/SET, MTS, MFS instructions
microblaze: Simplify syscall rutine
microblaze: Move PT_MODE saving to delay slot
microblaze: Fix _interrupt function
microblaze: Fix _user_exception function
microblaze: Put together addik instructions
microblaze: Use delay slot in syscall macros
microblaze: Save kernel mode in delay slot
microblaze: Do not mix register saving and mode setting
microblaze: Move SAVE_STATE upward
microblaze: entry.S: Macro optimization
microblaze: Optimize hw exception rutine
microblaze: Implement clear_ums macro and fix SAVE_STATE macro
microblaze: Remove additional setup for kernel_mode
microblaze: Optimize SAVE_STATE macro
microblaze: Remove additional loading
microblaze: Completely remove working with R11 register
microblaze: Do not setup BIP in _debug_exception
...
Linus Torvalds [Thu, 5 Aug 2010 15:57:50 +0000 (08:57 -0700)]
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] increase ia64 static per cpu area
[IA64] Put ia64 config files on the Uwe Kleine-König diet
[IA64] perfmon: convert to unlocked_ioctl
[IA64] beautify vmlinux.lds.h
Linus Torvalds [Thu, 5 Aug 2010 15:53:20 +0000 (08:53 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: (150 commits)
MIPS: PowerTV: Separate PowerTV USB support from non-USB code
MIPS: strip the un-needed sections of vmlinuz
MIPS: Clean up the calculation of VMLINUZ_LOAD_ADDRESS
MIPS: Clean up arch/mips/boot/compressed/decompress.c
MIPS: Clean up arch/mips/boot/compressed/ld.script
MIPS: Unify the suffix of compressed vmlinux.bin
MIPS: PowerTV: Add Gaia platform definitions.
MIPS: BCM47xx: Fix nvram_getenv return value.
MIPS: Octeon: Allow more than 3.75GB of memory with PCIe
MIPS: Clean up notify_die() usage.
MIPS: Remove unused task_struct.trap_no field.
Documentation: Mention that KProbes is supported on MIPS
SAMPLES: kprobe_example: Make it print something on MIPS.
MIPS: kprobe: Add support.
MIPS: Add instrunction format for BREAK and SYSCALL
MIPS: kprobes: Define regs_return_value()
MIPS: Ritually kill stupid printk.
MIPS: Octeon: Disallow MSI-X interrupt and fall back to MSI interrupts.
MIPS: Octeon: Support 256 MSI on PCIe
MIPS: Decode core number for R2 CPUs.
...
* git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6:
xtensa: Disable PCI and nfsroot on simulation target
xtensa: Add missing include in coprocessor.h
xtensa: Fix the network driver for the simulator target
xtensa: Shuffle include statements to fix linker script
xtensa: Add -mforce-no-pic option is supported
xtensa: Fixes due to bss boundary symbol name changes.
xtensa: Fix linker script patch-up
xtensa: Fix FLUSH_DCACHE macro for some variants.
Jason Wessel [Thu, 5 Aug 2010 14:22:32 +0000 (09:22 -0500)]
drm_fb_helper: Preserve capability to use atomic kms
Commit 5349ef3127c77075ff70b2014f17ae0fbcaaf199 (drm/fb: fix
FBIOGET/PUT_VSCREENINFO pixel clock handling) changed the logic of
when a pixclock was valid vs invalid.
The atomic kernel mode setting used by the kernel debugger relies upon
the drm_fb_helper_check_var() to always return -EINVAL. Until a
better solution exists, this behavior will be restored.
CC: David Airlie <airlied@linux.ie> CC: Jesse Barnes <jbarnes@virtuousgeek.org> CC: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Jason Wessel [Thu, 5 Aug 2010 14:22:32 +0000 (09:22 -0500)]
i915: when kgdb is active display compression should be off
If the HW compression is left on, the call backs from the HW will
crash the kernel. The only time this code is called is when kernel
mode setting is in use with kgdb and the kdb shell.
The atomic display pipe handler callback will reset everything when
kgdb restores kernel to the run state.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> CC: David Airlie <airlied@linux.ie>
Jesse Barnes [Mon, 2 Aug 2010 19:05:41 +0000 (12:05 -0700)]
fb: add hooks to handle KDB enter/exit
Add fb ops to handle enter/exit of the kernel debugger. If present, the
fb core will register them with KGDB and they'll be called when the
debugger is entered and exited. The new functions are responsible for
switching to an appropriate debug framebuffer and restoring the
interrupted state at exit time.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Jason Wessel [Thu, 5 Aug 2010 14:22:30 +0000 (09:22 -0500)]
vt,console,kdb: automatically set kdb LINES variable
The kernel console interface stores the number of lines it is
configured to use. The kdb debugger can greatly benefit by knowing how
many lines there are on the console for the pager functionality
without having the end user compile in the setting or have to
repeatedly change it at run time.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> CC: David Airlie <airlied@linux.ie> CC: Andrew Morton <akpm@linux-foundation.org>
Jason Wessel [Thu, 5 Aug 2010 14:22:25 +0000 (09:22 -0500)]
debug_core,kdb: fix crash when arch does not have single step
When an arch such as mips and microblaze does not implement either HW
or software single stepping the debug core should re-enter kdb. The
kdb code will properly ignore the single step operation. Attempting
to single step the kernel without software or hardware support causes
unpredictable kernel crashes.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Michal Simek [Thu, 5 Aug 2010 14:22:22 +0000 (09:22 -0500)]
kgdb,powerpc: Replace hardcoded offset by BREAK_INSTR_SIZE
kgdb_handle_breakpoint checks the first arch_kgdb_breakpoint
which is not known by gdb that's why is necessary jump over
it. The jump lenght is equal to BREAK_INSTR_SIZE that's
why is cleaner to use defined macro instead of hardcoded
non-described offset.
Signed-off-by: Michal Simek <monstr@monstr.eu> Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Jason Wessel [Thu, 5 Aug 2010 14:22:22 +0000 (09:22 -0500)]
gdbstub: do not directly use dbg_reg_def[] in gdb_cmd_reg_set()
Presently the usable registers definitions on x86 are not contiguous
for kgdb. The x86 kgdb uses a case statement for the sparse register
accesses. The array which defines the registers (dbg_reg_def) should
not be used directly in order to safely work with sparse register
definitions.
Specifically there was a problem when gdb accesses ORIG_AX, which is
accessed only through the case statement.
This patch encodes register memory using the size information provided
from the debugger which avoids the need to look up the size of the
register. The dbg_set_reg() function always further validates the
inputs from the debugger.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Dongdong Deng <dongdong.deng@windriver.com>
Jason Wessel [Thu, 5 Aug 2010 14:22:20 +0000 (09:22 -0500)]
kgdb,x86: Individual register get/set for x86
Implement the ability to individually get and set registers for kdb
and kgdb for x86.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Acked-by: H. Peter Anvin <hpa@zytor.com> CC: Ingo Molnar <mingo@redhat.com> CC: x86@kernel.org
Jason Wessel [Thu, 5 Aug 2010 14:22:20 +0000 (09:22 -0500)]
kgdb,kdb: individual register set and and get API
The kdb shell specification includes the ability to get and set
architecture specific registers by name.
For the time being individual register get and set will be implemented
on a per architecture basis. If an architecture defines
DBG_MAX_REG_NUM > 0 then kdb and the gdbstub will use the capability
for individually getting and setting architecture specific registers.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Jason Wessel [Thu, 5 Aug 2010 14:22:19 +0000 (09:22 -0500)]
gdbstub: Optimize kgdb's "thread:" response for the gdb serial protocol
The gdb debugger understands how to parse short versions of the thread
reference string as long as the bytes are paired in sets of two
characters. The kgdb implementation was always sending 8 leading
zeros which could be omitted, and further optimized in the case of
non-negative thread numbers. The negative numbers are used to
reference a specific cpu in the case of kgdb.
An example of the previous i386 stop packet looks like:
T05thread:00000000000003bb;
David VomLehn [Tue, 3 Aug 2010 01:40:58 +0000 (18:40 -0700)]
MIPS: PowerTV: Separate PowerTV USB support from non-USB code
Separate USB code into a file separate from asic/asic_devices.
Separating the USB code from everything else in asic/asic_devices.c goes
a long way toward reducing the use of that file as a dumping ground for
everything that didn't seem to fit anywhere else.
Signed-off-by: David VomLehn <dvomlehn@cisco.com>
To: linux-mips@linux-mips.org Cc: greg@kroah.com Cc: linux-usb@vger.kernel.org
Patchwork: http://patchwork.linux-mips.org/patch/1522/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Wu Zhangjin [Wed, 16 Jun 2010 07:52:19 +0000 (15:52 +0800)]
MIPS: Clean up arch/mips/boot/compressed/ld.script
- Remove unused symbols: _fdata, _text; only _edata and _end are needed by
head.S
- Remove unused sections: .sbss, .stab, .gptab.sdata, .gptab.sbss
- Change the alignment to 16 bytes to ensure it is greater than any
fundamental type of a MIPS compiler.
- Clean up comments
Wu Zhangjin [Wed, 2 Jun 2010 08:35:24 +0000 (16:35 +0800)]
MIPS: Unify the suffix of compressed vmlinux.bin
The compressed vmlinux.bin is only a temp file so it's ok to use the same
suffix .z for them (.gz,.lzo,.lzma...) to remove several lines and simpify
the maintenance (no need to add the "suffix_$(xxx) := suffix" line).
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
To: linux-mips <linux-mips@linux-mips.org> Cc: Alexander Clouter <alex@digriz.org.uk> Cc: Manuel Lauss <manuel.lauss@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org>
Patchwork: https://patchwork.linux-mips.org/patch/1323/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Hauke Mehrtens [Mon, 2 Aug 2010 21:56:22 +0000 (23:56 +0200)]
MIPS: BCM47xx: Fix nvram_getenv return value.
Nvram_getenv should behave like cfe_getenv. cfe_getenv returns 0 on
success and -9 if the value was not found. If the input was wrong -8
will be returned by cfe_getenv. Change nvram_getenv to do the same.
David Daney [Wed, 4 Aug 2010 21:53:57 +0000 (14:53 -0700)]
MIPS: Octeon: Allow more than 3.75GB of memory with PCIe
We reserve the 3.75GB - 4GB region of PCIe address space for device to
device transfers, making the corresponding physical memory under
direct mapping unavailable for DMA.
To allow for PCIe DMA to all physical memory we map this chunk of
physical memory with BAR1. Because of the resulting discontinuity in
the mapping function, we remove a page of memory at each end of the
range so multi-page DMA buffers can never be allocated that span the
range.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1535/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Daney [Tue, 3 Aug 2010 22:44:43 +0000 (15:44 -0700)]
MIPS: Clean up notify_die() usage.
The sixth argument of notify_die() is a signal number, the fifth is a
trap number.
Instead of passing a signal number in a randomly selected argument,
pass it in the sixth. Extract the exception code from regs and pass
that as the trap number.
Get rid of redundant cast, and remove some gratuitous spaces.
Nobody actually does anything with the signal number or trap number,
but we might as well populate them with sensible values.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1532/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Daney [Tue, 3 Aug 2010 18:22:22 +0000 (11:22 -0700)]
Documentation: Mention that KProbes is supported on MIPS
MIPS now has KProbes support, so kprobes.txt should reflect it.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
To: ananth@in.ibm.com
To: anil.s.keshavamurthy@intel.com
To: davem@davemloft.net
To: masami.hiramatsu.pt@hitachi.com Cc: linux-kernel@vger.kernel.org Cc: hschauhan@nulltrace.org
Patchwork: https://patchwork.linux-mips.org/patch/1527/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Daney [Tue, 3 Aug 2010 18:22:21 +0000 (11:22 -0700)]
SAMPLES: kprobe_example: Make it print something on MIPS.
This KProbes example is a little useless if it doesn't print anything.
For MIPS print similar messages to those produced on x86 and PPC.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
To: ananth@in.ibm.com
To: anil.s.keshavamurthy@intel.com
To: davem@davemloft.net
To: masami.hiramatsu.pt@hitachi.com Cc: linux-kernel@vger.kernel.org Cc: hschauhan@nulltrace.org
Patchwork: https://patchwork.linux-mips.org/patch/1528/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Daney [Tue, 3 Aug 2010 18:22:20 +0000 (11:22 -0700)]
MIPS: kprobe: Add support.
This patch is based on previous work by Sony and Himanshu Chauhan.
I have done some cleanup and implemented JProbes and KRETPROBES. The
KRETPROBES part is pretty much copied verbatim from powerpc. A possible
future enhance might be to factor out the common code.
Signed-off-by: David Daney <ddaney@caviumnetworks.com> Cc: Himanshu Chauhan <hschauhan@nulltrace.org>
To: linux-mips@linux-mips.org
To: ananth@in.ibm.com,
To: anil.s.keshavamurthy@intel.com
To: davem@davemloft.net
To: masami.hiramatsu.pt@hitachi.com Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1525/
Patchwork: https://patchwork.linux-mips.org/patch/1530/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Daney [Tue, 3 Aug 2010 18:22:19 +0000 (11:22 -0700)]
MIPS: Add instrunction format for BREAK and SYSCALL
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
To: ananth@in.ibm.com
To: anil.s.keshavamurthy@intel.com
To: davem@davemloft.net
To: masami.hiramatsu.pt@hitachi.com Cc: linux-kernel@vger.kernel.org Cc: hschauhan@nulltrace.org
Patchwork: https://patchwork.linux-mips.org/patch/1524/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
David Daney [Tue, 3 Aug 2010 20:53:24 +0000 (13:53 -0700)]
MIPS: kprobes: Define regs_return_value()
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
To: ananth@in.ibm.com
To: anil.s.keshavamurthy@intel.com
To: davem@davemloft.net
To: masami.hiramatsu.pt@hitachi.com Cc: linux-kernel@vger.kernel.org, Cc: hschauhan@nulltrace.org
Patchwork: https://patchwork.linux-mips.org/patch/1529/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: Octeon: Disallow MSI-X interrupt and fall back to MSI interrupts.
MSI-X interrupts are not supported yet for Octeon, return error if
MSI-X interrupts are requested by driver so that the driver will fall
back to use MSI interrupts.
Signed-off-by: Chandrakala Chavva <cchavva@caviumnetworks.com>
To: linux-mips@linux-mips.org Cc: David Daney <ddaney@caviumnetworks.com>
Patchwork: https://patchwork.linux-mips.org/patch/1506/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David Daney <ddaney@caviumnetworks.com>
MIPS: Loongson: Oprofile: add a new do_perfcnt_IRQ()
On FuLoong-2F IP6 is shared by the performance counter overflow interrupt
and the Bonito northbridge interrupt. To reduce overhead only call
do_IRQ() when oprofile is enabled to reduce overhead.
This patch adds an inline function do_perfcnt_IRQ() to hide the #if's ,
which can be shared by the other Loongson machines, i.e. gdium.
David Daney [Sat, 24 Jul 2010 17:16:05 +0000 (10:16 -0700)]
WATCHDOG: Add watchdog driver for OCTEON SOCs
The OCTEON is a MIPS64 based SOC family with an on chip watchdog unit.
The driver is split into two source files one for the C code and one
for assembly. Assembly is needed to handle the NMI and then print the
machine state before the reboot is triggered.
Signed-off-by: David Daney <ddaney@caviumnetworks.com> Cc: Wim Van Sebroeck <wim@iguana.be> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Tony Lindgren <tony@atomide.com> Cc: Marc Zyngier <maz@misterjones.org> Cc: Thierry Reding <thierry.reding@avionic-design.de> Cc: Sam Ravnborg <sam@ravnborg.org>
To: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org,
Patchwork: https://patchwork.linux-mips.org/patch/1503/ Signed-off-by: Wim Van Sebroeck <wim@iguana.be> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
create mode 100644 drivers/watchdog/octeon-wdt-main.c
create mode 100644 drivers/watchdog/octeon-wdt-nmi.S
David Daney [Sat, 24 Jul 2010 01:41:43 +0000 (18:41 -0700)]
MIPS: uasm: Add option to export uasm API.
A 'select EXPORT_UASM' in Kconfig will cause the uasm to be exported
for use in modules. When it is exported, all the uasm data and code
cease to be __init and __initdata.
Also daddiu_bug cannot be __cpuinitdata if uasm is exported. The
cleanest thing is to just make it normal data.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
To: wim@iguana.be Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1500/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
projects / mv-sheeva.git / log