[S390] use gmap address spaces for kvm guest images
This patch switches kvm from using (Qemu's) user address space to
Martin's gmap address space. This way QEMU does not have to use a
linker script in order to fit large guests at low addresses in its
address space.
Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Add code that allows KVM to control the virtual memory layout that
is seen by a guest. The guest address space uses a second page table
that shares the last level pte-tables with the process page table.
If a page is unmapped from the process page table it is automatically
unmapped from the guest page table as well.
The guest address space mapping starts out empty, KVM can map any
individual 1MB segments from the process virtual memory to any 1MB
aligned location in the guest virtual memory. If a target segment in
the process virtual memory does not exist or is unmapped while a
guest mapping exists the desired target address is stored as an
invalid segment table entry in the guest page table.
The population of the guest page table is fault driven.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Jan Glauber [Sun, 24 Jul 2011 08:48:19 +0000 (10:48 +0200)]
[S390] fix s390 assembler code alignments
The alignment is missing for various global symbols in s390 assembly code.
With a recent gcc and an instruction like stgrl this can lead to a
specification exception if the instruction uses such a mis-aligned address.
Specify the alignment explicitely and while add it define __ALIGN for s390
and use the ENTRY define to save some lines of code.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The entry to / exit from sie has subtle dependencies to the first level
interrupt handler. Move the sie assembler code to entry64.S and replace
the SIE_HOOK callback with a test and the new _TIF_SIE bit.
In addition this patch fixes several problems in regard to the check for
the_TIF_EXIT_SIE bits. The old code checked the TIF bits before executing
the interrupt handler and it only modified the instruction address if it
pointed directly to the sie instruction. In both cases it could miss
a TIF bit that normally would cause an exit from the guest and would
reenter the guest context.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
When running a kvm guest we can get intercepts for tprot, if the host
page table is read-only or not populated. This patch implements the
most common case (linux memory detection).
This also allows host copy on write for guest memory on newer systems.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The race would lead to a stall where new data in the input queue is
not recognized so the device stops working in case of no further traffic.
Fix the race by resetting the DSCI before scheduling the inbound tasklet
so the device generates an interrupt if new data arrives in the above
scenario in step 6.
Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
On x86 a page without a mapper is by definition not referenced / old.
The s390 architecture keeps the reference bit in the storage key and
the current code will check the storage key for page without a mapper.
This leads to an interesting effect: the first time an s390 system
needs to write pages to swap it only finds referenced pages. This
causes a lot of pages to get added and written to the swap device.
To avoid this behaviour change page_referenced to query the storage
key only if there is a mapper of the page.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Steven Rostedt [Sun, 24 Jul 2011 08:47:58 +0000 (10:47 +0200)]
[S390] irqs: Do not trace arch_local_{*,irq_*} functions
Do not trace arch_local_save_flags(), arch_local_irq_*() and friends.
Although they are marked inline, gcc may still make a function out of
them and add it to the pool of functions that are traced by the function
tracer. This can cause undesirable results (kernel panic, triple faults,
etc).
Add the notrace notation to prevent them from ever being traced.
Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Remove duplicated #include('s) in
drivers/net/igb/igb_main.c
Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jean Delvare [Mon, 4 Jul 2011 13:33:24 +0000 (15:33 +0200)]
pata_it821x: Fix RAID type display, by adding missing comma
The missing comma causes the wrong RAID type to be displayed.
Introduced by commit 963e4975c6f93c148ca809d986d412201df9af89 three
years ago, odd that nobody noticed before.
Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Fixed hsdev memleak on sata_dwc_probe() error.
As dma_dwc_exit() can be called multiple times without sata_dma_regs and
irq_dma changes, it might lead to double free on sequential
dma_dwc_exit() calls. So, zero these fields after free calls.
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Mark Nelson [Mon, 27 Jun 2011 06:33:44 +0000 (16:33 +1000)]
ahci: Enable SB600 64bit DMA on Asus M3A
Like e65cc194f7628ecaa02462f22f42fb09b50dcd49 this patch enables 64bit DMA
for the AHCI SATA controller of a board that has the SB600 southbridge. In
this case though we're enabling 64bit DMA for the Asus M3A motherboard. It
is a new enough board that all of the BIOS releases since the initial
release (0301 from 2007-10-22) work correctly with 64bit DMA enabled.
Signed-off-by: Mark Nelson <mdnelson8@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
libata: report link resume failure as KERN_WARNING instead of ERR
Link resume failure in itself isn't an error condition and may happen
regularly depending on hardware configuration. Reporting it as
KERN_ERR makes the condition unnecessarily prominent (e.g. reported
during boot). Use KERN_WARNING instead.
Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: David Shaw <dshaw@jabberwocky.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Tejun Heo [Wed, 25 May 2011 10:23:56 +0000 (12:23 +0200)]
libata: leave port thawed after reset failure
libata EH intentionally left a port frozen if it failed
ata_eh_reset(). The intention was avoiding continuous loop of resets
when the controller or attached device is flaky and reporting spurious
hotplug events. Once port enters this state, it can be recovered with
manual rescan, which seemed reasonable.
However, outside of my convoluted test setup, there have been very few
reports justifying this choice while there have been more cases where
the automatic freezing of the port after hotplug attempt of a faulty
device caused confusion and led to unnecessary resets.
This patch changes the behavior so that the port is thawed after reset
failure. This change doesn't necessarily solve but makes it easier
and more intuitive to work around hotplug related problems
(ie. re-pluggin or power cycling the device) as reported in the
followings.
Dan Williams [Sat, 23 Jul 2011 18:44:25 +0000 (20:44 +0200)]
block: strict rq_affinity
Some systems benefit from completions always being steered to the strict
requester cpu rather than the looser "per-socket" steering that
blk_cpu_to_group() attempts by default. This is because the first
CPU in the group mask ends up being completely overloaded with work,
while the others (including the original submitter) has power left
to spare.
Allow the strict mode to be set by writing '2' to the sysfs control
file. This is identical to the scheme used for the nomerges file,
where '2' is a more aggressive setting than just being turned on.
echo 2 > /sys/block/<bdev>/queue/rq_affinity
Cc: Christoph Hellwig <hch@infradead.org> Cc: Roland Dreier <roland@purestorage.com> Tested-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
backing-dev: use synchronize_rcu_expedited instead of synchronize_rcu
backing-dev: use synchronize_rcu_expedited instead of synchronize_rcu
synchronize_rcu sleeps several timer ticks. synchronize_rcu_expedited is
much faster.
With 100Hz timer frequency, when we remove 10000 block devices with
"dmsetup remove_all" command, it takes 27 minutes. With this patch,
removing 10000 block devices takes only 15 seconds.
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regulator: Convert tps65023 to use regmap API
regmap: Add SPI bus support
regmap: Add I2C bus support
regmap: Add generic non-memory mapped register access API
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (77 commits)
[SCSI] fix crash in scsi_dispatch_cmd()
[SCSI] sr: check_events() ignore GET_EVENT when TUR says otherwise
[SCSI] bnx2i: Fixed kernel panic due to illegal usage of sc->request->cpu
[SCSI] bfa: Update the driver version to 3.0.2.1
[SCSI] bfa: Driver and BSG enhancements.
[SCSI] bfa: Added support to query PHY.
[SCSI] bfa: Added HBA diagnostics support.
[SCSI] bfa: Added support for flash configuration
[SCSI] bfa: Added support to obtain SFP info.
[SCSI] bfa: Added support for CEE info and stats query.
[SCSI] bfa: Extend BSG interface.
[SCSI] bfa: FCS bug fixes.
[SCSI] bfa: DMA memory allocation enhancement.
[SCSI] bfa: Brocade-1860 Fabric Adapter vHBA support.
[SCSI] bfa: Brocade-1860 Fabric Adapter PLL init fixes.
[SCSI] bfa: Added Fabric Assigned Address(FAA) support
[SCSI] bfa: IOC bug fixes.
[SCSI] bfa: Enable ASIC block configuration and query.
[SCSI] bnx2i: Updated copyright and bump version
[SCSI] bnx2i: Modified to skip CNIC registration if iSCSI is not supported
...
Fix up some trivial conflicts in:
- drivers/scsi/bnx2fc/{bnx2fc.h,bnx2fc_fcoe.c}:
Crazy broadcom version number conflicts
- drivers/target/tcm_fc/tfc_cmd.c
Just trivial cleanups done on adjacent lines
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (297 commits)
ALSA: asihpi - Replace with snd_ctl_boolean_mono_info()
ALSA: asihpi - HPI version 4.08
ALSA: asihpi - Add volume mute controls
ALSA: asihpi - Control name updates
ALSA: asihpi - Use size_t for sizeof result
ALSA: asihpi - Explicitly include mutex.h
ALSA: asihpi - Add new node and message defines
ALSA: asihpi - Make local function static
ALSA: asihpi - Fix minor typos and spelling
ALSA: asihpi - Remove unused structures, macros and functions
ALSA: asihpi - Remove spurious adapter index check
ALSA: asihpi - Revise snd_pcm_debug_name, get rid of DEBUG_NAME macro
ALSA: asihpi - DSP code loader API now independent of OS
ALSA: asihpi - Remove controlex structs and associated special data transfer code
ALSA: asihpi - Increase request and response buffer sizes
ALSA: asihpi - Give more meaningful name to hpi request message type
ALSA: usb-audio - Add quirk for Roland / BOSS BR-800
ALSA: hda - Remove a superfluous argument of via_auto_init_output()
ALSA: hda - Fix indep-HP path (de-)activation for VT1708* codecs
ALSA: hda - Add documentation for codec-specific mixer controls
...
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
net/9p: Fix the msize calculation.
fs/9p: add 9P2000.L unlinkat operation
fs/9p: add 9P2000.L renameat operation
fs/9p: Always ask new inode in create
fs/9p: Clean-up get_protocol_version() to use strcmp
fs/9p: Fix invalid mount options/args
fs/9p: When doing inode lookup compare qid details and inode mode bits.
fs/9p: Fid is not valid after a failed clunk.
net/9p: Remove structure not used in the code
VirtIO can transfer VIRTQUEUE_NUM of pages.
Fix the size of receive buffer packing onto VirtIO ring.
9p: clean up packet dump code
fs/9p: remove rename work around in 9p
net/9p: fix client code to fail more gracefully on protocol error
Merge branches 'x86-detect-hyper-for-linus', 'x86-fpu-for-linus', 'x86-kexec-for-linus', 'x86-platform-for-linus', 'x86-quirks-for-linus', 'x86-tsc-for-linus' and 'x86-smpboot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-detect-hyper-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, hyper: Change hypervisor detection order
* 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86-32, fpu: Fix DNA exception during check_fpu()
* 'x86-kexec-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
kexec, x86: Fix incorrect jump back address if not preserving context
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, config: Introduce an INTEL_MID configuration
* 'x86-quirks-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, quirks: Use pci_dev->revision
* 'x86-tsc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: tsc: Remove unneeded DMI-based blacklisting
* 'x86-smpboot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, boot: Wait for boot cpu to show up if nr_cpus limit is about to hit
Merge branch 'timers-clocksource-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-clocksource-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
clocksource: apb: Share APB timer code with other platforms
Merge branches 'x86-urgent-for-linus', 'core-debug-for-linus', 'irq-core-for-linus' and 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
um: Make rwsem.S depend on CONFIG_RWSEM_XCHGADD_ALGORITHM
* 'core-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
debug: Make CONFIG_EXPERT select CONFIG_DEBUG_KERNEL to unhide debug options
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
genirq: Remove unused CHECK_IRQ_PER_CPU()
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf tools, x86: Fix 32-bit compile on 64-bit system
The remove message is used to remove a directory entry either file or directory
The remove opreation is actually a directory opertation and should ideally have
dirfid, if not we cannot represent the fid on server with anything other than
name. We will have to derive the directory name from fid in the Tremove request.
NOTE: The operation doesn't clunk the unlink fid.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
The rename message is used to change the name of a file, possibly moving it
to a new directory. The rename opreation is actually a directory opertation
and should ideally have olddirfid, if not we cannot represent the fid on server
with anything other than name. We will have to derive the old directory name
from fid in the Trename request.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
This make sure we don't end up reusing the unlinked inode object.
The ideal way is to use inode i_generation. But i_generation is
not available in userspace always.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Prem Karat [Fri, 6 May 2011 12:54:18 +0000 (18:24 +0530)]
fs/9p: Fix invalid mount options/args
Without this fix, if any invalid mount options/args are passed while mouting
the 9p fs, no error (-EINVAL) is returned and default arg value is assigned.
This fix returns -EINVAL when an invalid arguement is found while parsing
mount options.
Signed-off-by: Prem Karat <prem.karat@linux.vnet.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
fs/9p: When doing inode lookup compare qid details and inode mode bits.
This make sure we don't use wrong inode from the inode hash. The inode number
of the file deleted is reused by the next file system object created
and if we only use inode number for inode hash lookup we could end up
with wrong struct inode.
Also compare inode generation number. Not all Linux file system provide
st_gen in userspace. So it could be 0;
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Mark Brown [Sat, 18 Jun 2011 00:18:51 +0000 (01:18 +0100)]
regulator: Convert tps65023 to use regmap API
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com> Acked-by: Grant Likely <grant.likely@secretlab.ca>
Mark Brown [Thu, 12 May 2011 09:42:10 +0000 (11:42 +0200)]
regmap: Add SPI bus support
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Grant Likely <grant.likely@secretlab.ca>
Mark Brown [Mon, 20 Jun 2011 18:02:29 +0000 (19:02 +0100)]
regmap: Add I2C bus support
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Grant Likely <grant.likely@secretlab.ca>
Mark Brown [Wed, 11 May 2011 17:59:58 +0000 (19:59 +0200)]
regmap: Add generic non-memory mapped register access API
There are many places in the tree where we implement register access for
devices on non-memory mapped buses, especially I2C and SPI. Since hardware
designers seem to have settled on a relatively consistent set of register
interfaces this can be effectively factored out into shared code. There
are a standard set of formats for marshalling data for exchange with the
device, with the actual I/O mechanisms generally being simple byte
streams.
We create an abstraction for marshaling data into formats which can be
sent on the control interfaces, and create a standard method for
plugging in actual transport underneath that.
This is mostly a refactoring and renaming of the bottom level of the
existing code for sharing register I/O which we have in ASoC. A
subsequent patch in this series converts ASoC to use this. The main
difference in interface is that reads return values by writing to a
location provided by a pointer rather than in the return value, ensuring
we can use the full range of the type for register data. We also use
unsigned types rather than ints for the same reason.
As some of the devices can have very large register maps the existing
ASoC code also contains infrastructure for managing register caches.
This cache work will be moved over in a future stage to allow for
separate review, the current patch only deals with the physical I/O.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Grant Likely <grant.likely@secretlab.ca>
virtio has been so far used only in the context of virtualization,
and the virtio Kconfig was sourced directly by the relevant arch
Kconfigs when VIRTUALIZATION was selected.
Now that we start using virtio for inter-processor communications,
we need to source the virtio Kconfig outside of the virtualization
scope too.
Moreover, some architectures might use virtio for both virtualization
and inter-processor communications, so directly sourcing virtio
might yield unexpected results due to conflicting selections.
The simple solution offered by this patch is to always source virtio's
Kconfig in drivers/Kconfig, and remove it from the appropriate arch
Kconfigs. Additionally, a virtio menu entry has been added so virtio
drivers don't show up in the general drivers menu.
This way anyone can use virtio, though it's arguably less accessible
(and neat!) for virtualization users now.
Note: some architectures (mips and sh) seem to have a VIRTUALIZATION
menu merely for sourcing virtio's Kconfig, so that menu is removed too.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Steven Rostedt [Sat, 2 Jul 2011 03:04:38 +0000 (23:04 -0400)]
Blackfin: irqs: do not trace arch_local_{*,irq_*} functions
Do not trace arch_local_save_flags(), arch_local_irq_*() and friends.
Although they are marked inline, gcc may still make a function out of
them and add it to the pool of functions that are traced by the function
tracer. This can cause undesirable results (kernel panic, triple faults,
etc).
Add the notrace notation to prevent them from ever being traced.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Mike Frysinger [Wed, 29 Jun 2011 20:29:41 +0000 (16:29 -0400)]
Blackfin: bf51x: fix alternative portmux options
The BF51x's alternative portmux Kconfig options were copy & pasted from
the BF52x, but never tweaked to reflect it. So drop the old options as
they were never used (and were simply wrong), and add the BF51x specific
pieces to the Kconfig and header.
Mike Frysinger [Mon, 27 Jun 2011 21:23:48 +0000 (17:23 -0400)]
Blackfin: bf54x: fix GPIO resume code
Back in commit c03c2a87347b849ec927d, we fixed logic in the non-bf54x
GPIO resume code to set the data levels properly before the direction
to avoid spurious line glitches. But we missed the bf54x code paths.
So add the same fix there.
Mike Frysinger [Mon, 27 Jun 2011 18:46:14 +0000 (14:46 -0400)]
Blackfin: bf538: pull gpio/port logic out of core hibernate paths
Re-architect how we save/restore the gpio/port logic that only pertains
to bf538/bf539 parts by pulling it out of the core code paths and pushing
it out to bf538-specific locations.
Mike Frysinger [Mon, 27 Jun 2011 03:11:19 +0000 (23:11 -0400)]
Blackfin: dpmc: optimize hibernate/resume path
The current save logic used in hibernation is to do a MMR load (base +
offset) into a register, and then push that onto the stack. Then when
restoring, pop off the stack into a register followed by a MMR store
(base + offset). These use plenty of 32bit insns rather than 16bit,
are pretty long winded, and full of pipeline bubbles.
So, by taking advantage of MMRs that are contiguous, the multi-register
push/pop insn, and register abuse, we can shrink this code considerably.
When saving, the new logic does a lot of loads into the data and pointer
registers before executing a single multi-register push insn. Then when
restoring, we do a single multi-register pop insn followed by a lot of
stores. Overall, this allows us to cut the insn count by ~30%, the code
size by ~45%, and drastically reduce the register hazards that trigger
bubbles in the pipeline.
Mike Frysinger [Mon, 27 Jun 2011 06:57:44 +0000 (02:57 -0400)]
Blackfin: dpmc: do not save/restore EVT0/EVT1/EVT4 when hibernating
EVT0 is for emulation, EVT1 is for reset, and EVT4 is the "global int
disable" region. None of these are used by software (or even hardware),
so don't bother saving/restoring them when we hibernate since nothing
ever uses these in Linux (the only thing they would be useful for is
core-memory scratch, but that's just crazy talk).
Mike Frysinger [Sun, 26 Jun 2011 18:08:27 +0000 (14:08 -0400)]
Blackfin: dpmc: omit RETE/RETN when hibernating
The RETE/RETN registers are only used in emulation(JTAG) and NMI nodes,
or as scratch registers, neither of which need to be saved/restored as
this code doesn't execute at those core event levels.
Mike Frysinger [Sun, 26 Jun 2011 16:30:59 +0000 (12:30 -0400)]
Blackfin: gpio: punt unused GPIO_# defines
These defines don't accomplish much as GPIO_# is the same thing as #.
Each CPU already provides helpful symbolic defines like GPIO_<PIN>
which everyone uses, so just punt these # ones.