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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing changes from Steven Rostedt:
"The majority of the changes here are cleanups for the large changes
that were added to 3.10, which includes several bug fixes that have
been marked for stable.
As for new features, there were a few, but nothing to write to LWN
about. These include:
New function trigger called "dump" and "cpudump" that will cause
ftrace to dump its buffer to the console when the function is called.
The difference between "dump" and "cpudump" is that "dump" will dump
the entire contents of the ftrace buffer, where as "cpudump" will only
dump the contents of the ftrace buffer for the CPU that called the
function.
Another small enhancement is a new sysctl switch called
"traceoff_on_warning" which, when enabled, will disable tracing if any
WARN_ON() is triggered. This is useful if you want to debug what
caused a warning and do not want to risk losing your trace data by the
ring buffer overwriting the data before you can disable it. There's
also a kernel command line option that will make this enabled at boot
up called the same thing"
* tag 'trace-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (34 commits)
tracing: Make tracing_open_generic_{tr,tc}() static
tracing: Remove ftrace() function
tracing: Remove TRACE_EVENT_TYPE enum definition
tracing: Make tracer_tracing_{off,on,is_on}() static
tracing: Fix irqs-off tag display in syscall tracing
uprobes: Fix return value in error handling path
tracing: Fix race between deleting buffer and setting events
tracing: Add trace_array_get/put() to event handling
tracing: Get trace_array ref counts when accessing trace files
tracing: Add trace_array_get/put() to handle instance refs better
tracing: Protect ftrace_trace_arrays list in trace_events.c
tracing: Make trace_marker use the correct per-instance buffer
ftrace: Do not run selftest if command line parameter is set
tracing/kprobes: Don't pass addr=ip to perf_trace_buf_submit()
tracing: Use flag buffer_disabled for irqsoff tracer
tracing/kprobes: Turn trace_probe->files into list_head
tracing: Fix disabling of soft disable
tracing: Add missing syscall_metadata comment
tracing: Simplify code for showing of soft disabled flag
tracing/kprobes: Kill probe_enable_lock
...
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This reverts commit d2aae8477cd00325bb7c7c7e95be488088900c48.
It is completely and utterly broken. Module install should not build
any files, and adding broken dependencies to "help" it build files is
complete and utter sh*t.
The kernel should not be built by root, and "make install" and "make
module_install" (that for obvious reasons need to be run as root)
absolutely must not build any files. They should only ever copy the
already-built files over.
So having dependencies for the install targets is wrong, wrong, wrong.
If you try to install a kernel without building it first, you *should*
get errors. The build system shouldn't try to help root build the files.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull more KVM changes from Gleb Natapov:
"A fix for a bug that prevents some guests from working on old Intel
CPUs and a patch that integrates ARM64 KVM, merged via ARM64 tree,
into Kconfig."
* tag 'kvm-3.11-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: VMX: mark unusable segment as nonpresent
arm64: KVM: Kconfig integration
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Pull Sparc bugfixes from David Miller:
"Four bug fixes:
1) Enable snoop tags properly on Sparc32/LEON, from Andreas Larsson
2) strcpy() length check fix from Chen Gang.
3) Forgotten unregister_netdev() in sunvnet driver, from Dave
Kleikamp.
4) Fix broken assembler offsets used in vm_area_struct accesses on
sparc32, from Olivier DANET."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
[PATCH] sparc32: vm_area_struct access for old Sun SPARCs.
sunvnet: vnet_port_remove must call unregister_netdev
sparc32, leon: Require separate snoop tags set to regard snooping to be enabled
arch: sparc: kernel: check the memory length before use strcpy().
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Pull IDE updates from David Miller:
"Just a few small things:
1) module_platform_driver_probe() conversions from Jingoo Han.
2) module_pci_driver() conversion from Libo Chen.
3) PIO size calculation fix from Steven J Hill"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide:
ide: Fix IDE PIO size calculation
drivers/ide/delkin_cb: Convert to module_pci_driver
ide: gayle: use module_platform_driver_probe()
ide: tx4939ide: use module_platform_driver_probe()
ide: tx4938ide: use module_platform_driver_probe()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull printk locking fix from Thomas Gleixner:
"A single lock ordering fix in the printk code"
* 'core-printk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
printk: Fix rq->lock vs logbuf_lock unlock lock inversion
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Merge more patches from Andrew Morton:
"The rest of MM"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm: remove free_area_cache
zswap: add documentation
zswap: add to mm/
zbud: add to mm/
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Since all architectures have been converted to use vm_unmapped_area(),
there is no remaining use for the free_area_cache.
Signed-off-by: Michel Lespinasse <walken@google.com>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add the documentation file for the zswap functionality
Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Dan Magenheimer <dan.magenheimer@oracle.com>
Cc: Robert Jennings <rcj@linux.vnet.ibm.com>
Cc: Jenifer Hopper <jhopper@us.ibm.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <jweiner@redhat.com>
Cc: Larry Woodman <lwoodman@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Dave Hansen <dave@sr71.net>
Cc: Joe Perches <joe@perches.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: Hugh Dickens <hughd@google.com>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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zswap is a thin backend for frontswap that takes pages that are in the
process of being swapped out and attempts to compress them and store
them in a RAM-based memory pool. This can result in a significant I/O
reduction on the swap device and, in the case where decompressing from
RAM is faster than reading from the swap device, can also improve
workload performance.
It also has support for evicting swap pages that are currently
compressed in zswap to the swap device on an LRU(ish) basis. This
functionality makes zswap a true cache in that, once the cache is full,
the oldest pages can be moved out of zswap to the swap device so newer
pages can be compressed and stored in zswap.
This patch adds the zswap driver to mm/
Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Dan Magenheimer <dan.magenheimer@oracle.com>
Cc: Robert Jennings <rcj@linux.vnet.ibm.com>
Cc: Jenifer Hopper <jhopper@us.ibm.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <jweiner@redhat.com>
Cc: Larry Woodman <lwoodman@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Dave Hansen <dave@sr71.net>
Cc: Joe Perches <joe@perches.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: Hugh Dickens <hughd@google.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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zbud is an special purpose allocator for storing compressed pages. It
is designed to store up to two compressed pages per physical page.
While this design limits storage density, it has simple and
deterministic reclaim properties that make it preferable to a higher
density approach when reclaim will be used.
zbud works by storing compressed pages, or "zpages", together in pairs
in a single memory page called a "zbud page". The first buddy is "left
justifed" at the beginning of the zbud page, and the last buddy is
"right justified" at the end of the zbud page. The benefit is that if
either buddy is freed, the freed buddy space, coalesced with whatever
slack space that existed between the buddies, results in the largest
possible free region within the zbud page.
zbud also provides an attractive lower bound on density. The ratio of
zpages to zbud pages can not be less than 1. This ensures that zbud can
never "do harm" by using more pages to store zpages than the
uncompressed zpages would have used on their own.
This implementation is a rewrite of the zbud allocator internally used
by zcache in the driver/staging tree. The rewrite was necessary to
remove some of the zcache specific elements that were ingrained
throughout and provide a generic allocation interface that can later be
used by zsmalloc and others.
This patch adds zbud to mm/ for later use by zswap.
Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Dan Magenheimer <dan.magenheimer@oracle.com>
Cc: Robert Jennings <rcj@linux.vnet.ibm.com>
Cc: Jenifer Hopper <jhopper@us.ibm.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <jweiner@redhat.com>
Cc: Larry Woodman <lwoodman@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Dave Hansen <dave@sr71.net>
Cc: Joe Perches <joe@perches.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: Hugh Dickens <hughd@google.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Bob Liu <bob.liu@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull coccinelle updates from Michal Marek:
"The misc branch is reserved for Coccinelle this time:
- 'report' is the default mode
- MAINTAINERS update for Coccinelle
- documentation udate
- use new option format for spatch(1)
- J=<n> variable to mimic make -j for coccicheck
- check for missing pci_free_consistent() calls
There are some patches for rpm-pkg and deb-pkg waiting for the
3.12-rc1 merge window"
* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
Coccinelle: Update information about the minimal version required
Coccinelle: Update the options used to the new option scheme
scripts: Coccinelle script for pci_free_consistent()
Coccinelle: Update the documentation
Coccinelle: Update section of MAINTAINERS
coccicheck: span checks across CPUs
scripts/coccinelle: check for field address argument to kfree
Coccinelle: Update the Coccinelle section of MAINTAINERS
Coccinelle: Make 'report' the default mode
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git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kconfig updates from Michal Marek:
- dependency solver fix for make defconfig
- randconfig fixes, one of which had to be reverted again
- more user-friendly sorting of search results
- hex and range keywords support longs
- fix for [mn]conf not to rely on particular behavior of the LINES and
COLS variables
- cleanup of magic constants in kconfig/lxdialog
- [mn]conf formatting fixes
- fix for scripts/config's help text in out-of-tree usage (under a
different name)
* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kconfig: allow "hex" and "range" to support longs
Revert "kconfig: fix randomising choice entries in presence of KCONFIG_ALLCONFIG"
kconfig: fix randomising choice entries in presence of KCONFIG_ALLCONFIG
kconfig: loop as long as we changed some symbols in randconfig
kconfig/[mn]conf: make it explicit in the search box that a regexp is possible
kconfig: sort found symbols by relevance
kconfig/conf: print the seed used to initialise the RNG for randconfig
kconfig/conf: accept a base-16 seed for randconfig
kconfig/conf: fix randconfig setting multiple symbols in a choice
scripts/config: replace hard-coded script name by a dynamic value
mconf/nconf: mark empty menus/menuconfigs different from non-empty ones
nconf: use function calls instead of ncurses' variables LINES and COLS
mconf: use function calls instead of ncurses' variables LINES and COLS
kconfig/lxdialog: handle newline characters in print_autowrap()
kconfig/lxdialog: Use new mininimum resize definitions in conf_choice()
kconfig/lxdialog: Add definitions for mininimum (re)size values
kconfig: Fix defconfig when one choice menu selects options that another choice menu depends on
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git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kbuild updates from Michal Marek:
- fix for make headers_install argv explosion with too long path
- scripts/setlocalversion does not call git update-index needlessly
- fix for the src.rpm produced by make rpm-pkg. The new make
image_name can be useful also for other packaging tools.
- scripts/mod/devicetable-offsets.o is not rebuilt during each make run
- make modules_install dependency fix
- scripts/sortextable portability fix
- fix for kbuild to generate the output directory for all object files
in subdirs.
- a couple of minor fixes
* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kbuild: create directory for dir/file.o
tools/include: use stdint types for user-space byteshift headers
Makefile: Fix install error with make -j option
Fix a build warning in scripts/mod/file2alias.c
improve modalias building
scripts/mod: Spelling s/DEVICEVTABLE/DEVICETABLE/
kbuild: fix error when building from src rpm
scripts/setlocalversion on write-protected source tree
Makefile.lib: align DTB quiet_cmd
kbuild: fix make headers_install when path is too long
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"Two small fixlets"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf: Fix interrupt handler timing harness
perf/x86/amd: Do not print an error when the device is not present
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull module updates from Rusty Russell:
"Nothing interesting. Except the most embarrassing bugfix ever. But
let's ignore that"
* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
module: cleanup call chain.
module: do percpu allocation after uniqueness check. No, really!
modules: don't fail to load on unknown parameters.
ABI: Clarify when /sys/module/MODULENAME is created
There is no /sys/parameters
module: don't modify argument of module_kallsyms_lookup_name()
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull virtio updates from Rusty Russell:
"No real surprises"
* tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
MAINTAINERS: add tools/virtio/ under virtio
tools/virtio: move module license stub to module.h
virtio: include asm/barrier explicitly
virtio: VIRTIO_F_ANY_LAYOUT feature
lguest: fix example launcher compilation for broken glibc headers.
virtio-net: fix the race between channels setting and refill
tools/lguest: real barriers.
tools/lguest: fix missing rmb().
virtio_balloon: leak_balloon(): only tell host if we got pages deflated
virtio-pci: fix leaks of msix_affinity_masks
Fix comment typo "CONFIG_PAE"
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Pull vfio updates from Alex Williamson:
"Largely hugepage support for vfio/type1 iommu and surrounding cleanups
and fixes"
* tag 'vfio-v3.11' of git://github.com/awilliam/linux-vfio:
vfio/type1: Fix leak on error path
vfio: Limit group opens
vfio/type1: Fix missed frees and zero sized removes
vfio: fix documentation
vfio: Provide module option to disable vfio_iommu_type1 hugepage support
vfio: hugepage support for vfio_iommu_type1
vfio: Convert type1 iommu to use rbtree
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Pull vhost fixes and cleanups from Michael S Tsirkin:
"This includes some fixes and cleanups for vhost net and scsi drivers"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vhost/test: update test after vhost cleanups
vhost: Make local function static
vhost: Make vhost a separate module
vhost-scsi: Rename struct tcm_vhost_cmd *tv_cmd to *cmd
vhost-scsi: Rename struct tcm_vhost_tpg *tv_tpg to *tpg
vhost-scsi: Make func indention more consistent
vhost-scsi: Rename struct vhost_scsi *s to *vs
vhost-scsi: Remove unnecessary forward struct vhost_scsi declaration
vhost: Simplify dev->vqs[i] access
vhost-net: fix use-after-free in vhost_net_flush
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel:
"A few updates this time, most important and exiciting (to me) is:
- The new ARM SMMU driver. This is a common IOMMU driver that will
hopefully be used in a lot of upcoming ARM chips. So the mess in
the past where every SOC had its own IOMMU will be over.
Besides that:
- Some important fixes in the IOMMU unmap path. There are fixes in
the common code and also in the AMD IOMMU driver.
- Other random fixes"
* tag 'iommu-updates-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
MAINTAINERS: add entry for ARM system MMU driver
iommu/arm: Add support for ARM Ltd. System MMU architecture
documentation/iommu: Add description of ARM System MMU binding
iommu: Use %pa and %zx instead of casting
iommu/amd: Only unmap large pages from the first pte
iommu: Fix compiler warning on pr_debug
iommu/amd: Fix memory leak in free_pagetable
iommu: Split iommu_unmaps
iommu/{vt-d,amd}: Remove multifunction assumption around grouping
iommu/omap: fix checkpatch warnings in omap iommu code
iommu/omap: fix printk formats for dma_addr_t
iommu/vt-d: DMAR reporting table needs at least one DRHD
iommu/vt-d: Downgrade the warning if enabling irq remapping fails
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Use "const char *" instead of "char *" in order to avoid this warning:
drivers/gpu/drm/drm_edid_load.c: In function ‘drm_load_edid_firmware’:
drivers/gpu/drm/drm_edid_load.c:245:25: warning: initialization discards ‘const’ qualifier from pointer target type [enabled by default]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Commit e4c6bfd2d79d063017ab19a18915f0bc759f32d9 ("mm: rearrange
vm_area_struct for fewer cache misses") changed the layout of the
vm_area_struct structure, it broke several SPARC32 assembly routines
which used numerical constants for accessing the vm_mm field.
This patch defines the VMA_VM_MM constant to replace the immediate values.
Signed-off-by: Olivier DANET <odanet@caramail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The missing call to unregister_netdev() leaves the interface active
after the driver is unloaded by rmmod.
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Even if data snooping is enabled, without separate snoop tags snooping will not
work when the MMU is enabled.
Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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For the related next strcpy(), the destination length is less than 512,
but the source maximize length may be 'OPROMMAXPARAM' (4096) which is
more than 512.
One work flow may:
openprom_sunos_ioctl() -> if (cmd == OPROMSETOPT)
getstrings() -> will alloc buffer with size 'OPROMMAXPARAM'.
opromsetopt() -> devide the buffer into 'var' and 'value'
of_set_property() -> pass
prom_setprop() -> pass
ldom_set_var()
And do not mind the additional 4 alignment buffer increasing, since
'sizeof(pkt) - sizeof(pkt.header)' is 4 alignment at least.
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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IDE PIO calculates the size wrong when passing the parameter
"ide-core.nodma=0.0" to the kernel.
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Acked-by: Steven J. Hill <Steven.Hill@imgtec.com>
Signed-off-by: Steven J. Hill <sjhill@mips.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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use module_pci_driver instead of init/exit, make code clean.
Signed-off-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Pull MMC updates from Chris Ball:
"MMC highlights for 3.11:
Core:
- Add support for eMMC 5.1 devices
- Add MMC_CAP_AGGRESSIVE_PM capability for aggressive power
management of eMMC/SD between requests, using runtime PM
- Add an ioctl to perform the eMMC 4.5 Sanitize command. Sample code
at:
git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc-utils.git
Drivers:
- dw_mmc: Add support for Rockchip's Cortex-A9 SoCs
- dw_mmc: Add support for Altera SoCFPGAs
- sdhci-esdhc-imx: Add support for 8-bit bus width, non-removable
cards
- sdhci-bcm-kona: New driver for Broadcom Kona (281xx) SoCs
- sdhi/tmio: Add DT DMA support"
* tag 'mmc-updates-for-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (87 commits)
mmc: bcm281xx SDHCI driver
mmc: sdhci: add card_event callback to sdhci
mmc: core: Fixup Oops for SDIO shutdown
mmc: sdhci-pci: add another device id
mmc: esdhc: Fix bug when writing to SDHCI_HOST_CONTROL register
mmc: esdhc: Add support for 8-bit bus width and non-removable card
mmc: core: production year for eMMC 4.41 and later
mmc: omap: remove unnecessary #if 0's
mmc: sdhci: fix ctrl_2 on super-speed selection
mmc: dw_mmc-pltfm: add Rockchip variant
mmc: dw_mmc-pltfm: move probe and remove below dt match table
mmc: dw_mmc-pltfm: remove static from dw_mci_pltfm_remove
mmc: sdhci-acpi: add support for eMMC hardware reset for HID 80860F14
mmc: sdhci-pci: add support for eMMC hardware reset for BYT eMMC.
mmc: dw_mmc: Add support DW SD/MMC driver on SOCFPGA
mmc: sdhci: fix caps2 for HS200
sdhci-pxav3: Fix runtime PM initialization
mmc: core: Add DT-bindings for MMC_CAP2_FULL_PWR_CYCLE
mmc: core: Invent MMC_CAP2_FULL_PWR_CYCLE
mmc: core: Enable power_off_notify for eMMC shutdown sequence
...
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Pull pwm changes from Thierry Reding:
"A new driver supports driving PWM signals using the TPU unit found on
various Renesas SoCs. Furthermore support is added for the NXP
PCA9685 LED controller. Another big chunk is the sysfs interface
which has been in the works for quite some time.
The remaining patches are a random assortment of cleanups and fixes"
* tag 'for-3.11-rc1' of git://gitorious.org/linux-pwm/linux-pwm:
pwm: pwm-tiehrpwm: Use clk_enable/disable instead clk_prepare/unprepare.
pwm: pca9685: Fix wrong argument to set MODE1_SLEEP bit
pwm: renesas-tpu: Add MODULE_ALIAS to make module auto loading work
pwm: renesas-tpu: fix return value check in tpu_probe()
pwm: Add Renesas TPU PWM driver
pwm: Add sysfs interface
pwm: Fill in missing .owner fields
pwm: add pca9685 driver
pwm: atmel-tcb: prepare clk before calling enable
pwm: devm: alloc correct pointer size
pwm: mxs: Let device core handle pinctrl
MAINTAINERS: Update PWM subsystem entry
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Pull battery subsystem update from Anton Vorontsov:
"Nothing exciting this time, just assorted fixes and cleanups"
* tag 'for-v3.11' of git://git.infradead.org/battery-2.6: (25 commits)
charger-manager: Fix regulator_get() return check
charger-manager: Fix a bug when it unregisters notifier block of extcon
tps65090-charger: Add dt node to power_supply
sbs-battery: Add dt to power_supply struct
power_supply: Add of_node_put to fix refcount
power_supply: Move of_node out of the #ifdef CONFIG_OF
power/reset: Make the vexpress driver optional on arm and arm64
charger-manager: Add missing newlines, fix a couple of typos, add pr_fmt
tps65090-charger: Fix AC detect
MAINTAINERS: Update email address for Anton Vorontsov
charger-manager: Ensure event is not used as format string
power_supply: Replace strict_strtoul() with kstrtoul()
generic-adc-battery: Fix checking if none of the channels are supported
power: Use platform_{get,set}_drvdata()
pm2301_charger: Return error if create_singlethread_workqueue fails
pm2301_charger: Fix NULL pointer dereference
lp8727_charger: Support the device tree feature
twl4030_charger: Remove unnecessary platform_set_drvdata()
rx51_battery: Remove unnecessary platform_set_drvdata()
jz4740-battery: Remove unnecessary platform_set_drvdata()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next
Pull MFD update from Samuel Ortiz:
"For the 3.11 merge we only have one new MFD driver for the Kontron
PLD.
But we also have:
- Support for the TPS659038 PMIC from the palmas driver.
- Intel's Coleto Creek and Avoton SoCs support from the lpc_ich
driver.
- RTL8411B support from the rtsx driver.
- More DT support for the Arizona, max8998, twl4030-power and the
ti_am335x_tsadc drivers.
- The SSBI driver move under MFD.
- A conversion to the devm_* API for most of the MFD drivers.
- The twl4030-power got split from twl-core into its own module.
- A major ti_am335x_adc cleanup, leading to a proper DT support.
- Our regular arizona and wm* updates and cleanups from the Wolfson
folks.
- A better error handling and initialization, and a regulator
subdevice addition for the 88pm80x driver.
- A bulk platform_set_drvdata() call removal that's no longer need
since commit 0998d0631001 ("device-core: Ensure drvdata = NULL when
no driver is bound")
* tag 'mfd-3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next: (102 commits)
mfd: sec: Provide max_register to regmap
mfd: wm8994: Remove duplicate check for active JACKDET
MAINTAINERS: Add include directory to MFD file patterns
mfd: sec: Remove fields not used since regmap conversion
watchdog: Kontron PLD watchdog timer driver
mfd: max8998: Add support for Device Tree
regulator: max8998: Use arrays for specifying voltages in platform data
mfd: max8998: Add irq domain support
regulator: palmas: Add TPS659038 support
mfd: Kontron PLD mfd driver
mfd: palmas: Add TPS659038 PMIC support
mfd: palmas: Add SMPS10_BOOST feature
mfd: palmas: Check if irq is valid
mfd: lpc_ich: iTCO_wdt patch for Intel Coleto Creek DeviceIDs
mfd: twl-core: Change TWL6025 references to TWL6032
mfd: davinci_voicecodec: Fix build breakage
mfd: vexpress: Make the driver optional for arm and arm64
mfd: htc-egpio: Use devm_ioremap_nocache() instead of ioremap_nocache()
mfd: davinci_voicecodec: Convert to use devm_* APIs
mfd: twl4030-power: Fix relocking on error
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull hwmon update from Jean Delvare.
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
hwmon: (lm63) Drop redundant safety on cache lifetime
hwmon: (lm90) Drop redundant safety on cache lifetime
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"Fixes for the merge window
A set of small fixes for issues noticed during the merge window, all
very much non-invasive"
* tag 'regulator-v3.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
MAINTAINERS: Update git repository
regulator: max8997: Fix a trivial typo in documentation
regulator: s5m8767: Fix a trivial typo in documentation
regulator: s2mps11: Convert ramp rate to uV/us and set default ramp rate
regulator: s5m8767: Update s5m8767-regulator bindings document
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire updates from Stefan Richter:
"Make struct ieee1394_device_id.driver_data actually avaliable to 1394
protocol drivers. This is especially useful to 1394 audio drivers for
model-specific parameters and methods"
* tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: remove support of fw_driver.driver.probe and .remove methods
firewire: introduce fw_driver.probe and .remove methods
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Ingo Molnar:
"irq-tracing fixlet"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/tracing: Add irq_enter/exit() in smp_trace_reschedule_interrupt()
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Pull microblaze update from Michal Simek:
"This Microblaze merge window is quite minimal.
I have also added to my branch one xilinx systemace sparse fix because
haven't got any reply from block maintainer."
* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
xilinx systemace: Fix sparse warnings
microblaze: Move __NR_syscalls from uapi
microblaze: Enable KGDB in defconfig
microblaze: Don't mark arch_kgdb_ops as const.
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git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag
Pull arch/metag fixes from James Hogan:
"This is just a single fix to fix bad UDP checksums sometimes being
generated to IP addresses *.*.255.255"
* tag 'metag-fixes-for-v3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag:
metag: checksum.h: fix carry in csum_tcpudp_nofold
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git://git.kernel.org/pub/scm/linux/kernel/git/realmz6/blackfin-linux
Pull blackfin updates from Steven Miao:
"blackfin updates for Linux 3.11"
* tag 'blackfin-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/realmz6/blackfin-linux:
smp: refine bf561 smpboot code
bf609: stmmac: fix build after stmmac_mdio_bus_data changed
bf609: add cpu revision 0.1
bf609: rename bfin6xx_spi to bfin_spi3
kgdb: blackfin: include irq_regs.h in kgdb.c
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git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull second set of ARC architecture updates from Vineet Gupta:
"Couple of Platform updates (Device Tree files primarily) given that
the corresponding drivers (net/ethernet/arc/*, irqctl/irq-tb10x.c)
have now been merged into your tree.
Ideally these shd have been part of same submissions, oh well..."
* tag 'arc-v3.11-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: [TB10x] Updates for irqchip driver
ARC: [plat-arcfpga] Enable arc_emac for ARCAngle4 Board
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc updates from Helge Deller:
"The PA-RISC updates for v3.11 include a gcc miscompilation fix,
gzip-compressed vmlinuz support, a fix in the PCI code for ATI FireGL
support on c8000 machines, a fix to prevent that %sr1 is being
clobbered and a few smaller optimizations and documentation updates"
* 'parisc-for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Fix gcc miscompilation in pa_memcpy()
parisc: Ensure volatile space register %sr1 is not clobbered
parisc: optimize mtsp(0,sr) inline assembly
parisc: switch to gzip-compressed vmlinuz kernel
parisc: document the shadow registers
parisc: more capabilities info in /proc/cpuinfo
parisc: fix LMMIO mismatch between PAT length and MASK register
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux
P{ill ia64 warning fix from Tony Luck:
"Add some casts to avoid warnings from efi_runtime_services_t members"
* tag 'please-pull-fix-ia64-warnings' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
[IA64] sim: Add casts to avoid assignment warnings
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Fix sysace sparse warnings.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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The reason is that other applications like strace
think that every __NR_xx is syscall.
Also __NR_syscalls is not used by user applications/libs.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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Pull networking updates from David Miller:
"This is a re-do of the net-next pull request for the current merge
window. The only difference from the one I made the other day is that
this has Eliezer's interface renames and the timeout handling changes
made based upon your feedback, as well as a few bug fixes that have
trickeled in.
Highlights:
1) Low latency device polling, eliminating the cost of interrupt
handling and context switches. Allows direct polling of a network
device from socket operations, such as recvmsg() and poll().
Currently ixgbe, mlx4, and bnx2x support this feature.
Full high level description, performance numbers, and design in
commit 0a4db187a999 ("Merge branch 'll_poll'")
From Eliezer Tamir.
2) With the routing cache removed, ip_check_mc_rcu() gets exercised
more than ever before in the case where we have lots of multicast
addresses. Use a hash table instead of a simple linked list, from
Eric Dumazet.
3) Add driver for Atheros CQA98xx 802.11ac wireless devices, from
Bartosz Markowski, Janusz Dziedzic, Kalle Valo, Marek Kwaczynski,
Marek Puzyniak, Michal Kazior, and Sujith Manoharan.
4) Support reporting the TUN device persist flag to userspace, from
Pavel Emelyanov.
5) Allow controlling network device VF link state using netlink, from
Rony Efraim.
6) Support GRE tunneling in openvswitch, from Pravin B Shelar.
7) Adjust SOCK_MIN_RCVBUF and SOCK_MIN_SNDBUF for modern times, from
Daniel Borkmann and Eric Dumazet.
8) Allow controlling of TCP quickack behavior on a per-route basis,
from Cong Wang.
9) Several bug fixes and improvements to vxlan from Stephen
Hemminger, Pravin B Shelar, and Mike Rapoport. In particular,
support receiving on multiple UDP ports.
10) Major cleanups, particular in the area of debugging and cookie
lifetime handline, to the SCTP protocol code. From Daniel
Borkmann.
11) Allow packets to cross network namespaces when traversing tunnel
devices. From Nicolas Dichtel.
12) Allow monitoring netlink traffic via AF_PACKET sockets, in a
manner akin to how we monitor real network traffic via ptype_all.
From Daniel Borkmann.
13) Several bug fixes and improvements for the new alx device driver,
from Johannes Berg.
14) Fix scalability issues in the netem packet scheduler's time queue,
by using an rbtree. From Eric Dumazet.
15) Several bug fixes in TCP loss recovery handling, from Yuchung
Cheng.
16) Add support for GSO segmentation of MPLS packets, from Simon
Horman.
17) Make network notifiers have a real data type for the opaque
pointer that's passed into them. Use this to properly handle
network device flag changes in arp_netdev_event(). From Jiri
Pirko and Timo Teräs.
18) Convert several drivers over to module_pci_driver(), from Peter
Huewe.
19) tcp_fixup_rcvbuf() can loop 500 times over loopback, just use a
O(1) calculation instead. From Eric Dumazet.
20) Support setting of explicit tunnel peer addresses in ipv6, just
like ipv4. From Nicolas Dichtel.
21) Protect x86 BPF JIT against spraying attacks, from Eric Dumazet.
22) Prevent a single high rate flow from overruning an individual cpu
during RX packet processing via selective flow shedding. From
Willem de Bruijn.
23) Don't use spinlocks in TCP md5 signing fast paths, from Eric
Dumazet.
24) Don't just drop GSO packets which are above the TBF scheduler's
burst limit, chop them up so they are in-bounds instead. Also
from Eric Dumazet.
25) VLAN offloads are missed when configured on top of a bridge, fix
from Vlad Yasevich.
26) Support IPV6 in ping sockets. From Lorenzo Colitti.
27) Receive flow steering targets should be updated at poll() time
too, from David Majnemer.
28) Fix several corner case regressions in PMTU/redirect handling due
to the routing cache removal, from Timo Teräs.
29) We have to be mindful of ipv4 mapped ipv6 sockets in
upd_v6_push_pending_frames(). From Hannes Frederic Sowa.
30) Fix L2TP sequence number handling bugs, from James Chapman."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1214 commits)
drivers/net: caif: fix wrong rtnl_is_locked() usage
drivers/net: enic: release rtnl_lock on error-path
vhost-net: fix use-after-free in vhost_net_flush
net: mv643xx_eth: do not use port number as platform device id
net: sctp: confirm route during forward progress
virtio_net: fix race in RX VQ processing
virtio: support unlocked queue poll
net/cadence/macb: fix bug/typo in extracting gem_irq_read_clear bit
Documentation: Fix references to defunct linux-net@vger.kernel.org
net/fs: change busy poll time accounting
net: rename low latency sockets functions to busy poll
bridge: fix some kernel warning in multicast timer
sfc: Fix memory leak when discarding scattered packets
sit: fix tunnel update via netlink
dt:net:stmmac: Add dt specific phy reset callback support.
dt:net:stmmac: Add support to dwmac version 3.610 and 3.710
dt:net:stmmac: Allocate platform data only if its NULL.
net:stmmac: fix memleak in the open method
ipv6: rt6_check_neigh should successfully verify neigh if no NUD information are available
net: ipv6: fix wrong ping_v6_sendmsg return value
...
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Pull drm updates from Dave Airlie:
"Okay this is the big one, I was stalled on the fbdev pull req as I
stupidly let fbdev guys merge a patch I required to fix a warning with
some patches I had, they ended up merging the patch from the wrong
place, but the warning should be fixed. In future I'll just take the
patch myself!
Outside drm:
There are some snd changes for the HDMI audio interactions on haswell,
they've been acked for inclusion via my tree. This relies on the
wound/wait tree from Ingo which is already merged.
Major changes:
AMD finally released the dynamic power management code for all their
GPUs from r600->present day, this is great, off by default for now but
also a huge amount of code, in fact it is most of this pull request.
Since it landed there has been a lot of community testing and Alex has
sent a lot of fixes for any bugs found so far. I suspect radeon might
now be the biggest kernel driver ever :-P p.s. radeon.dpm=1 to enable
dynamic powermanagement for anyone.
New drivers:
Renesas r-car display unit.
Other highlights:
- core: GEM CMA prime support, use new w/w mutexs for TTM
reservations, cursor hotspot, doc updates
- dvo chips: chrontel 7010B support
- i915: Haswell (fbc, ips, vecs, watermarks, audio powerwell),
Valleyview (enabled by default, rc6), lots of pll reworking, 30bpp
support (this time for sure)
- nouveau: async buffer object deletion, context/register init
updates, kernel vp2 engine support, GF117 support, GK110 accel
support (with external nvidia ucode), context cleanups.
- exynos: memory leak fixes, Add S3C64XX SoC series support, device
tree updates, common clock framework support,
- qxl: cursor hotspot support, multi-monitor support, suspend/resume
support
- mgag200: hw cursor support, g200 mode limiting
- shmobile: prime support
- tegra: fixes mostly
I've been banging on this quite a lot due to the size of it, and it
seems to okay on everything I've tested it on."
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (811 commits)
drm/radeon/dpm: implement vblank_too_short callback for si
drm/radeon/dpm: implement vblank_too_short callback for cayman
drm/radeon/dpm: implement vblank_too_short callback for btc
drm/radeon/dpm: implement vblank_too_short callback for evergreen
drm/radeon/dpm: implement vblank_too_short callback for 7xx
drm/radeon/dpm: add checks against vblank time
drm/radeon/dpm: add helper to calculate vblank time
drm/radeon: remove stray line in old pm code
drm/radeon/dpm: fix display_gap programming on rv7xx
drm/nvc0/gr: fix gpc firmware regression
drm/nouveau: fix minor thinko causing bo moves to not be async on kepler
drm/radeon/dpm: implement force performance level for TN
drm/radeon/dpm: implement force performance level for ON/LN
drm/radeon/dpm: implement force performance level for SI
drm/radeon/dpm: implement force performance level for cayman
drm/radeon/dpm: implement force performance levels for 7xx/eg/btc
drm/radeon/dpm: add infrastructure to force performance levels
drm/radeon: fix surface setup on r1xx
drm/radeon: add support for 3d perf states on older asics
drm/radeon: set default clocks for SI when DPM is disabled
...
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git://git.kernel.org/pub/scm/linux/kernel/git/plagnioj/linux-fbdev
Pull fbdev update from Jean-Christophe PLAGNIOL-VILLARD:
"Various fbdev changes for 3.11
- xilinxfb updates
- Small cleanups and fixes to multiple drivers
- OMAP display subsystem bug updates
- imxfb dt support"
* tag 'fbdev-for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/plagnioj/linux-fbdev: (95 commits)
video: imxfb: Add DT support
video: i740fb: Make i740fb_init static
fb: make fp_get_options name argument const
video: mmp: fix graphics/video layer enable/mask swap issue
video: mmp: fix memcpy wrong size for mmp_addr issue
radeon: use pdev->pm_cap instead of pci_find_capability(..,PCI_CAP_ID_PM)
aty128fb: use pdev->pm_cap instead of pci_find_capability(..,PCI_CAP_ID_PM)
video: of_display_timing.h: Declare 'display_timing'
fbdev: bfin-lq035q1-fb: Use dev_pm_ops
fbmem: return -EFAULT on copy_to_user() failure
OMAPDSS: DPI: Fix wrong pixel clock limit
video: replace strict_strtoul() with kstrtoul()
uvesafb: Correct/simplify warning message
fb: fix atyfb unused data warnings
fb: fix atyfb build warning
video: imxfb: Make local symbols static
video: udlfb: Make local symbol static
video: udlfb: Use NULL instead of 0
video: smscufx: Use NULL instead of 0
video: remove unnecessary platform_set_drvdata()
...
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Merge second patch-bomb from Andrew Morton:
- misc fixes
- audit stuff
- fanotify/inotify/dnotify things
- most of the rest of MM. The new cache shrinker code from Glauber and
Dave Chinner probably isn't quite stabilized yet.
- ptrace
- ipc
- partitions
- reboot cleanups
- add LZ4 decompressor, use it for kernel compression
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (118 commits)
lib/scatterlist: error handling in __sg_alloc_table()
scsi_debug: fix do_device_access() with wrap around range
crypto: talitos: use sg_pcopy_to_buffer()
lib/scatterlist: introduce sg_pcopy_from_buffer() and sg_pcopy_to_buffer()
lib/scatterlist: factor out sg_miter_get_next_page() from sg_miter_next()
crypto: add lz4 Cryptographic API
lib: add lz4 compressor module
arm: add support for LZ4-compressed kernel
lib: add support for LZ4-compressed kernel
decompressor: add LZ4 decompressor module
lib: add weak clz/ctz functions
reboot: move arch/x86 reboot= handling to generic kernel
reboot: arm: change reboot_mode to use enum reboot_mode
reboot: arm: prepare reboot_mode for moving to generic kernel code
reboot: arm: remove unused restart_mode fields from some arm subarchs
reboot: unicore32: prepare reboot_mode for moving to generic kernel code
reboot: x86: prepare reboot_mode for moving to generic kernel code
reboot: checkpatch.pl the new kernel/reboot.c file
reboot: move shutdown/reboot related functions to kernel/reboot.c
reboot: remove -stable friendly PF_THREAD_BOUND define
...
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When running the LTP testsuite one may hit this kernel BUG() with the
write06 testcase:
kernel BUG at mm/filemap.c:2023!
CPU: 1 PID: 8614 Comm: writev01 Not tainted 3.10.0-rc7-64bit-c3000+ #6
IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000401e6e84 00000000401e6e88
IIR: 03ffe01f ISR: 0000000010340000 IOR: 000001fbe0380820
CPU: 1 CR30: 00000000bef80000 CR31: ffffffffffffffff
ORIG_R28: 00000000bdc192c0
IAOQ[0]: iov_iter_advance+0x3c/0xc0
IAOQ[1]: iov_iter_advance+0x40/0xc0
RP(r2): generic_file_buffered_write+0x204/0x3f0
Backtrace:
[<00000000401e764c>] generic_file_buffered_write+0x204/0x3f0
[<00000000401eab24>] __generic_file_aio_write+0x244/0x448
[<00000000401eadc0>] generic_file_aio_write+0x98/0x150
[<000000004024f460>] do_sync_readv_writev+0xc0/0x130
[<000000004025037c>] compat_do_readv_writev+0x12c/0x340
[<00000000402505f8>] compat_writev+0x68/0xa0
[<0000000040251d88>] compat_SyS_writev+0x98/0xf8
Reason for this crash is a gcc miscompilation in the fault handlers of
pa_memcpy() which return the fault address instead of the copied bytes.
Since this seems to be a generic problem with gcc-4.7.x (and below), it's
better to simplify the fault handlers in pa_memcpy to avoid this problem.
Here is a simple reproducer for the problem:
int main(int argc, char **argv)
{
int fd, nbytes;
struct iovec wr_iovec[] = {
{ "TEST STRING ",32},
{ (char*)0x40005000,32} }; // random memory.
fd = open(DATA_FILE, O_RDWR | O_CREAT, 0666);
nbytes = writev(fd, wr_iovec, 2);
printf("return value = %d, errno %d (%s)\n",
nbytes, errno, strerror(errno));
return 0;
}
In addition, John David Anglin wrote:
There is no gcc PR as pa_memcpy is not legitimate C code. There is an
implicit assumption that certain variables will contain correct values
when an exception occurs and the code randomly jumps to one of the
exception blocks. There is no guarantee of this. If a PR was filed, it
would likely be marked as invalid.
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: <stable@vger.kernel.org> # 3.8+
Signed-off-by: Helge Deller <deller@gmx.de>
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I still see the occasional random segv on rp3440. Looking at one of
these (a code 15), it appeared the problem must be with the cache
handling of anonymous pages. Reviewing this, I noticed that the space
register %sr1 might be being clobbered when we flush an anonymous page.
Register %sr1 is used for TLB purges in a couple of places. These
purges are needed on PA8800 and PA8900 processors to ensure cache
consistency of flushed cache lines.
The solution here is simply to move the %sr1 load into the TLB lock
region needed to ensure that one purge executes at a time on SMP
systems. This was already the case for one use. After a few days of
operation, I haven't had a random segv on my rp3440.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: <stable@vger.kernel.org> # 3.10
Signed-off-by: Helge Deller <deller@gmx.de>
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If the value which should be moved into a space register is zero, we can
optimize the inline assembly to become "mtsp %r0,%srX".
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # 3.10
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