As we now share the execlist_port[] tracking for both execlists/guc, we
can reset the inflight count on both and report which requests are being
restarted.
Suggested-by: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michel Thierry <michel.thierry@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170425103835.31871-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
When downscaling, mclk needs to be sufficiently higher than pxlclk in
order to be able to fetch the higher-resolution data and produce output
pixels. When not scaling, or when upscaling, mclk can be equal to
pxlclk. Since the driver doesn't control mclk, just ensure that the
requirement is satisfied with the current clock rate.
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Apply image enhacement when we are upscaling by a factor of 2
or more in either direction.
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Enable the scaling engine for upscaling a single plane using the polyphase
scaler. No image enhancement support or downscaling yet*, and composition
result scaling is not implemented.
* Downscaling a plane requires mclk > pxlclk.
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Add a core_id file in the driver's sysfs directory,
exposing the hardware CORE ID. This is useful to allow
userspace to discover the hardware version used.
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
All DPs have a COLORADJ matrix which is applied prior to output gamma.
Attach that to the CTM property. Also, ensure the input CTM's coefficients
can fit in the DP registers' Q3.12 format.
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Add gamma via the DRM GAMMA_LUT/GAMMA_LUT_SIZE CRTC
properties. The expected LUT size is 4096 in order
to produce as accurate a set of segments as possible.
This version uses only the green channel's gamma curve
to set the hardware curve on DP550/650. For the sake of
simplicity, it uses the same table of coefficients for
all 3 curves on DP500.
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Add a custom CRTC state struct to enable storing driver's private
state. This patch only adds the base drm_crtc_state struct and
the atomic functions that handle it.
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Now that we are using a custom plane state in mali-dp, we need a
bespoke reset that takes into account the larger structure.
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
[Updated commit message]
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
The newly introduced function causes a harmless build warning:
drivers/gpu/drm/arm/malidp_planes.c: In function 'malidp_plane_atomic_print_state':
drivers/gpu/drm/arm/malidp_planes.c:98:23: error: unused variable 'mp' [-Werror=unused-variable]
The variable serves no purpose here and can be removed.
Fixes: 242f43b69c61 ("drm: mali-dp: add atomic_print_state for planes")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Add function to dump the state of the plane.
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Enable runtime and system Power Management. Clocks are now managed
from malidp_crtc_{enable,disable} functions. Suspend-to-RAM tested
as working on Juno.
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Mali DP needs to have all the planes that are becoming inactive in the
new state disabled before re-enabling the active CRTC, otherwise we
start streaming out data from old pointers in memory.
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Change "S_IRUSR | S_IWUSR" to "0600", it's easier to parse mentally.
This change should be part of commit 50f837371d ("drm/vmwgfx: Revert
"drm/vmwgfx: Replace numeric parameter like 0444 with macro""), but the
patch was truncated somewhere in the patch route, so add the missing
change. Extract from the original commit message:
commit 50f837371d
Author: Øyvind A. Holm <sunny@sunbase.org>
Date: Thu Mar 23 14:54:48 2017 -0700
drm/vmwgfx: Revert "drm/vmwgfx: Replace numeric parameter like 0444
with macro"
This reverts commit 2d8e60e8b0 ("drm/vmwgfx: Replace numeric
parameter like 0444 with macro")
The commit belongs to the series of 1285 patches sent to LKML on
2016-08-02, it changes the representation of file permissions from
the octal value "0600" to "S_IRUSR | S_IWUSR".
The general consensus was that the changes does not increase
readability, quite the opposite; 0600 is easier to parse mentally
than S_IRUSR | S_IWUSR.
Signed-off-by: Øyvind A. Holm <sunny@sunbase.org>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
The hangcheck runs independently to the main flow of seqno through the
driver. However, we have an odd coupling of the seqno reset that is
unwelcome, and if poked at just the right rate can cause spurious hangs
(e.g. gem_exec_whisper) on an apparently idle engine.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170421083113.21321-1-chris@chris-wilson.co.uk
drm-misc-next-fixes-2017-04-20
Core changes:
- Maintain sti via drm-misc (Vincent)
- Rename dma_buf_ops->kmap_* to avoid naming collision (Logan)
Driver changes:
- Fix UHD displays on stih407 (Vincent)
- Fix uninitialized var return in atmel-hlcdc (Dan)
* tag 'drm-misc-next-fixes-2017-04-20' of git://anongit.freedesktop.org/git/drm-misc:
dma-buf: Rename dma-ops to prevent conflict with kunmap_atomic macro
drm: atmel-hlcdc: Uninitialized return in atmel_hlcdc_create_outputs()
drm/sti: fix GDP size to support up to UHD resolution
MAINTAINERS: add drm/sti driver into drm-misc
The contents of a ring are only valid between HEAD and TAIL, when the
ring is idle (HEAD == TAIL) we can simply let the pages go under memory
pressure if they are not pinned by an active context. Any new content
will be written after HEAD and so the ring will again be valid between
HEAD and TAIL, everything outside can be discarded.
Note that we take care of ensuring that we do not reset the HEAD
backwards following a GPU hang on an idle ring.
The same precautions are what enable us to use stolen memory for rings.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170420101709.27250-1-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Avoid having too large a stack by creating the fake struct inode/file on
the heap instead.
drivers/gpu/drm/i915/selftests/mock_drm.c: In function 'mock_file':
drivers/gpu/drm/i915/selftests/mock_drm.c:46:1: error: the frame size of 1328 bytes is larger than 1280 bytes [-Werror=frame-larger-than=]
drivers/gpu/drm/i915/selftests/mock_drm.c: In function 'mock_file_free':
drivers/gpu/drm/i915/selftests/mock_drm.c:54:1: error: the frame size of 1312 bytes is larger than 1280 bytes [-Werror=frame-larger-than=]
Reported-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 66d9cb5d80 ("drm/i915: Mock the GEM device for self-testing")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20170419094143.16922-2-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Seeing the kunmap_atomic dma_buf_ops share the same name with a macro
in highmem.h, the former can be aliased if any dma-buf user includes
that header.
I'm personally trying to include highmem.h inside scatterlist.h and this
breaks the dma-buf code proper.
Christoph Hellwig suggested [1] renaming it and pushing this patch ASAP.
To maintain consistency I've renamed all four of kmap* and kunmap* to be
map* and unmap*. (Even though only kmap_atomic presently conflicts.)
[1] https://www.spinics.net/lists/target-devel/msg15070.html
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1492630570-879-1-git-send-email-logang@deltatee.com
Not any functional changes, but a lot of preliminary rework in order to
support multiple display pipelines.
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Merge tag 'sunxi-drm-for-4.12' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into drm-next
Allwinner DRM changes for 4.12
Not any functional changes, but a lot of preliminary rework in order to
support multiple display pipelines.
* tag 'sunxi-drm-for-4.12' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux: (26 commits)
MAINTAINERS: Add sun4i-drm git repo
drm/sun4i: Pass pointer for underlying backend into layer init
drm/sun4i: Pass pointers for associated backend and tcon into crtc init
drm/sun4i: tv: Get tcon and backend pointers from associated crtc
drm/sun4i: Use embedded tcon pointer to get the tcon's output port node
drm/sun4i: Fix tcon channel 0 comment about backporch = backporch + hsync
drm/sun4i: Fix TCON clock and regmap initialization sequence
drm/sun4i: Grab reserved memory region
drm/sun4i: Add backend and tcon pointers to sun4i_crtc
drm/sun4i: Add backend pointer to sun4i_layer
drm/sun4i: rgb: Pass tcon pointer when initializing RGB encoder
drm/sun4i: tv: Switch to drm_of_find_possible_crtcs
drm/sun4i: Drop hardcoded .possible_crtcs values from layers
drm/sun4i: Drop primary layer pointer from sun4i_drv
drm/sun4i: Initialize crtc from tcon bind function
drm/sun4i: Move layers from sun4i_drv to sun4i_crtc
drm/sun4i: Add end of list element for sun4i_layers_init's returned list
drm/sun4i: Set drm_crtc.port to the underlying TCON's output port node
drm/sun4i: Make sunxi_rgb2yuv_coef constant
drm/sun4i: Make sun4i_crtc_init return ERR_PTR style error codes
...
While highly unlikely, this makes sure that the string built from
engine names won't be processed as a format string.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170411045630.GA6612@beast
Move the BUILD_BUG_ONs for busy-wait duration outside the
_wait_for_atomic macro as discussed on the mailing list.
v2: Simplify the macro by omitting the ret__ local. (Chris Wilson)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Suggested-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Fixes: 1d1a9774e4 ("drm/i915: Extend intel_wait_for_register_fw() with fast timeout")
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170418105211.7089-1-tvrtko.ursulin@linux.intel.com
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Merge tag 'v4.11-rc7' into drm-next
Backmerge Linux 4.11-rc7 from Linus tree, to fix some
conflicts that were causing problems with the rerere cache
in drm-tip.
Previously with commit a9c1f90c8e
("drm/i915: Don't mask EI UP interrupt on IVB|SNB") certain,
seemingly unrelated bit (GEN6_PM_RP_UP_EI_EXPIRED) was needed
to be unmasked for IVB and SNB in order to prevent system hang
with chained batchbuffers.
Our CI was seeing incomplete results with tests that used
chained batches and it was found out that HSW needs to have this
same bit unmasked to reliably survive chained batches.
Always unmask GEN6_PM_RP_UP_EI_EXPIRED on Haswell to
prevent system hang with batch chaining.
Testcase: igt/gem_exec_fence/nb-await-default
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100672
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1492082127-29007-1-git-send-email-mika.kuoppala@intel.com
It's not possible for endpoint to be zero so the test doesn't work. If
we break on the first iteration through the loop then endpoint is 1 and
"ret" is uninitialized.
Fixes: ebc9446135 ("drm: convert drivers to use drm_of_find_panel_or_bridge")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170415192142.GA6416@mwanda
There are two bugs here. The && should be || and the > is off by one so
it should be >= ARRAY_SIZE().
Fixes: 8453d674ae ("drm/i915/gvt: vGPU execlist virtualization")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Again, a batch that's been sitting a couple of weeks, mostly because I
anticipated a bit more material but it didn't show up -- which is good.
These are all your garden variety fixes for ARM platforms. Most visible issue
fixed here is probably the SMP reset issue on OMAP, the rest are minor stuff.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Again, a batch that's been sitting a couple of weeks, mostly because
I anticipated a bit more material but it didn't show up -- which is
good.
These are all your garden variety fixes for ARM platforms.
The most visible issue fixed here is probably the SMP reset issue on
OMAP, the rest are minor stuff"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arm64: allwinner: a64: add pmu0 regs for USB PHY
ARM: OMAP2+: omap_device: Sync omap_device and pm_runtime after probe defer
reset: add exported __reset_control_get, return NULL if optional
ARM: orion5x: only call into phylib when available
ARM: omap2+: Revert omap-smp.c changes resetting CPU1 during boot
ARM: dts: am335x-evmsk: adjust mmc2 param to allow suspend
ARM: dts: ti: fix PCI bus dtc warnings
ARM: dts: am335x-baltos: disable EEE for Atheros 8035 PHY
ARM: dts: OMAP3: Fix MFG ID EEPROM
ARM: sun8i: a33: add operating-points-v2 property to all nodes
ARM: sun8i: a33: remove highest OPP to fix CPU crashes
Pull block fixes from Jens Axboe:
"Four small fixes.
Three of them fix the same error in NVMe, in loop, fc, and rdma
respectively. The last fix from Ming fixes a regression in this
series, where our bvec gap logic was wrong and causes an oops on
NVMe for certain conditions"
* 'for-linus' of git://git.kernel.dk/linux-block:
block: fix bio_will_gap() for first bvec with offset
nvme-fc: Fix sqsize wrong assignment based on ctrl MQES capability
nvme-rdma: Fix sqsize wrong assignment based on ctrl MQES capability
nvme-loop: Fix sqsize wrong assignment based on ctrl MQES capability
Without this fix we can get PM related warnings for devices that
use deferred probe. If necessary, this fix can wait for the
v4.12 merge window no problem.
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Merge tag 'omap-for-v4.11/fixes-rc6-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Regression fix for omap interconnect code for deferred probe.
Without this fix we can get PM related warnings for devices that
use deferred probe. If necessary, this fix can wait for the
v4.12 merge window no problem.
* tag 'omap-for-v4.11/fixes-rc6-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: omap_device: Sync omap_device and pm_runtime after probe defer
ARM: omap2+: Revert omap-smp.c changes resetting CPU1 during boot
ARM: dts: am335x-evmsk: adjust mmc2 param to allow suspend
ARM: dts: ti: fix PCI bus dtc warnings
ARM: dts: am335x-baltos: disable EEE for Atheros 8035 PHY
ARM: dts: OMAP3: Fix MFG ID EEPROM
Signed-off-by: Olof Johansson <olof@lixom.net>
Pull cgroup fix from Tejun Heo:
"Unfortunately, the commit to fix the cgroup mount race in the previous
pull request can lead to hangs.
The original bug has been around for a while and isn't too likely to
be triggered in usual use cases. Revert the commit for now"
* 'for-4.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
Revert "cgroup: avoid attaching a cgroup root to two different superblocks"
Here is a single tty core revert for a patch that was reported to cause
problems. The original issue is one that we have lived with for
decades, so trying to scramble to fix the fix in time for 4.11-final
does not make sense due to the fragility of the tty ldisc layer. Just
reverting it makes sense for now.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty fix from Greg KH:
"Here is a single tty core revert for a patch that was reported to
cause problems.
The original issue is one that we have lived with for decades, so
trying to scramble to fix the fix in time for 4.11-final does not make
sense due to the fragility of the tty ldisc layer. Just reverting it
makes sense for now"
* tag 'tty-4.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
Revert "tty: don't panic on OOM in tty_set_ldisc()"
bug. This bug has been there sinc function tracing was added way back
when. But my new development depends on this bug being fixed, and it
should be fixed regardless as it causes ftrace to disable itself when
triggered, and a reboot is required to enable it again.
The bug is that the function probe does not disable itself properly
if there's another probe of its type still enabled. For example:
# cd /sys/kernel/debug/tracing
# echo schedule:traceoff > set_ftrace_filter
# echo do_IRQ:traceoff > set_ftrace_filter
# echo \!do_IRQ:traceoff > /debug/tracing/set_ftrace_filter
# echo do_IRQ:traceoff > set_ftrace_filter
The above registers two traceoff probes (one for schedule and one for
do_IRQ, and then removes do_IRQ. But since there still exists one for
schedule, it is not done properly. When adding do_IRQ back, the breakage
in the accounting is noticed by the ftrace self tests, and it causes
a warning and disables ftrace.
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Merge tag 'trace-v4.11-rc5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull ftrace fix from Steven Rostedt:
"While rewriting the function probe code, I stumbled over a long
standing bug. This bug has been there sinc function tracing was added
way back when. But my new development depends on this bug being fixed,
and it should be fixed regardless as it causes ftrace to disable
itself when triggered, and a reboot is required to enable it again.
The bug is that the function probe does not disable itself properly if
there's another probe of its type still enabled. For example:
# cd /sys/kernel/debug/tracing
# echo schedule:traceoff > set_ftrace_filter
# echo do_IRQ:traceoff > set_ftrace_filter
# echo \!do_IRQ:traceoff > /debug/tracing/set_ftrace_filter
# echo do_IRQ:traceoff > set_ftrace_filter
The above registers two traceoff probes (one for schedule and one for
do_IRQ, and then removes do_IRQ.
But since there still exists one for schedule, it is not done
properly. When adding do_IRQ back, the breakage in the accounting is
noticed by the ftrace self tests, and it causes a warning and disables
ftrace"
* tag 'trace-v4.11-rc5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
ftrace: Fix removing of second function probe
This reverts commit bfb0b80db5.
Andrei reports CRIU test hangs with the patch applied. The bug fixed
by the patch isn't too likely to trigger in actual uses. Revert the
patch for now.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Andrei Vagin <avagin@virtuozzo.com>
Link: http://lkml.kernel.org/r/20170414232737.GC20350@outlook.office365.com
Pull nvdimm fixes from Dan Williams:
"A small crop of lockdep, sleeping while atomic, and other fixes /
band-aids in advance of the full-blown reworks targeting the next
merge window. The largest change here is "libnvdimm: fix blk free
space accounting" which deletes a pile of buggy code that better
testing would have caught before merging. The next change that is
borderline too big for a late rc is switching the device-dax locking
from rcu to srcu, I couldn't think of a smaller way to make that fix.
The __copy_user_nocache fix will have a full replacement in 4.12 to
move those pmem special case considerations into the pmem driver. The
"libnvdimm: band aid btt vs clear poison locking" commit admits that
our error clearing support for btt went in broken, so we just disable
it in 4.11 and -stable. A replacement / full fix is in the pipeline
for 4.12
Some of these would have been caught earlier had DEBUG_ATOMIC_SLEEP
been enabled on my development station. I wonder if we should have:
config DEBUG_ATOMIC_SLEEP
default PROVE_LOCKING
...since I mistakenly thought I got both with PROVE_LOCKING=y.
These have received a build success notification from the 0day robot,
and some have appeared in a -next release with no reported issues"
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
x86, pmem: fix broken __copy_user_nocache cache-bypass assumptions
device-dax: switch to srcu, fix rcu_read_lock() vs pte allocation
libnvdimm: band aid btt vs clear poison locking
libnvdimm: fix reconfig_mutex, mmap_sem, and jbd2_handle lockdep splat
libnvdimm: fix blk free space accounting
acpi, nfit, libnvdimm: fix interleave set cookie calculation (64-bit comparison)
This is seven small fixes which are all for user visible issues that
fortunately only occur in rare circumstances. The most serious is the
sr one in which QEMU can cause us to read beyond the end of a buffer
(I don't think it's exploitable, but just in case). The next is the
sd capacity fix which means all non 512 byte sector drives greater
than 2TB fail to be correctly sized. The rest are either in new
drivers (qedf) or on error legs.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is seven small fixes which are all for user visible issues that
fortunately only occur in rare circumstances.
The most serious is the sr one in which QEMU can cause us to read
beyond the end of a buffer (I don't think it's exploitable, but just
in case).
The next is the sd capacity fix which means all non 512 byte sector
drives greater than 2TB fail to be correctly sized.
The rest are either in new drivers (qedf) or on error legs"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ipr: do not set DID_PASSTHROUGH on CHECK CONDITION
scsi: aacraid: fix PCI error recovery path
scsi: sd: Fix capacity calculation with 32-bit sector_t
scsi: qla2xxx: Add fix to read correct register value for ISP82xx.
scsi: qedf: Fix crash due to unsolicited FIP VLAN response.
scsi: sr: Sanity check returned mode data
scsi: sd: Consider max_xfer_blocks if opt_xfer_blocks is unusable
Pull parisc fix from Helge Deller:
"Mikulas Patocka fixed a few bugs in our new pa_memcpy() assembler
function, e.g. one bug made the kernel unbootable if source and
destination address are the same"
* 'parisc-4.11-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: fix bugs in pa_memcpy
Otherwise lockdep says:
[ 1337.483798] ================================================
[ 1337.483999] [ BUG: lock held when returning to user space! ]
[ 1337.484252] 4.11.0-rc6 #19 Not tainted
[ 1337.484423] ------------------------------------------------
[ 1337.484626] mount/14766 is leaving the kernel with locks still held!
[ 1337.484841] 1 lock held by mount/14766:
[ 1337.485017] #0: (&type->s_umount_key#33/1){+.+.+.}, at: [<ffffffff8124171f>] sget_userns+0x2af/0x520
Caught by xfstests generic/413 which tried to mount with the unsupported
mount option dax. Then xfstests generic/422 ran sync which deadlocks.
Signed-off-by: Martin Brandenburg <martin@omnibond.com>
Acked-by: Mike Marshall <hubcap@omnibond.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Normal pathname lookup doesn't allow empty pathnames, but using
AT_EMPTY_PATH (with name_to_handle_at() or fstatat(), for example) you
can trigger an empty pathname lookup.
And not only is the RCU lookup in that case entirely unnecessary
(because we'll obviously immediately finalize the end result), it is
actively wrong.
Why? An empth path is a special case that will return the original
'dirfd' dentry - and that dentry may not actually be RCU-free'd,
resulting in a potential use-after-free if we were to initialize the
path lazily under the RCU read lock and depend on complete_walk()
finalizing the dentry.
Found by syzkaller and KASAN.
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Reported-by: Vegard Nossum <vegard.nossum@gmail.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The patch 554bfeceb8 ("parisc: Fix access
fault handling in pa_memcpy()") reimplements the pa_memcpy function.
Unfortunatelly, it makes the kernel unbootable. The crash happens in the
function ide_complete_cmd where memcpy is called with the same source
and destination address.
This patch fixes a few bugs in pa_memcpy:
* When jumping to .Lcopy_loop_16 for the first time, don't skip the
instruction "ldi 31,t0" (this bug made the kernel unbootable)
* Use the COND macro when comparing length, so that the comparison is
64-bit (a theoretical issue, in case the length is greater than
0xffffffff)
* Don't use the COND macro after the "extru" instruction (the PA-RISC
specification says that the upper 32-bits of extru result are undefined,
although they are set to zero in practice)
* Fix exception addresses in .Lcopy16_fault and .Lcopy8_fault
* Rename .Lcopy_loop_4 to .Lcopy_loop_8 (so that it is consistent with
.Lcopy8_fault)
Cc: <stable@vger.kernel.org> # v4.9+
Fixes: 554bfeceb8 ("parisc: Fix access fault handling in pa_memcpy()")
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Introduce a new execobject.flag (EXEC_OBJECT_CAPTURE) that userspace may
use to indicate that it wants the contents of this buffer preserved in
the error state (/sys/class/drm/cardN/error) following a GPU hang
involving this batch.
Use this at your discretion, the contents of the error state. although
compressed, are allocated with GFP_ATOMIC (i.e. limited) and kept for all
eternity (until the error state is destroyed).
Based on an earlier patch by Ben Widawsky <ben@bwidawsk.net>
Testcase: igt/gem_exec_capture
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Matt Turner <mattst88@gmail.com>
Acked-by: Ben Widawsky <ben@bwidawsk.net>
Acked-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170415093902.22581-1-chris@chris-wilson.co.uk
If "crtc" is NULL, then my static checker complains that "ret" isn't
initialized on that path. It doesn't really cause a problem unless
"ret" is somehow set to -EDEADLK which is not likely.
Chris Wilson also noticed another error path where "ret" isn't set
correctly.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170414195425.GA8144@mwanda
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Pull input fixes from Dmitry Torokhov:
"Just a small update to xpad driver to recognize yet another gamepad,
and another change making sure userio.h is exported"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: xpad - add support for Razer Wildcat gamepad
uapi: add missing install of userio.h
Pull networking fixes from David Miller:
"Things seem to be settling down as far as networking is concerned,
let's hope this trend continues...
1) Add iov_iter_revert() and use it to fix the behavior of
skb_copy_datagram_msg() et al., from Al Viro.
2) Fix the protocol used in the synthetic SKB we cons up for the
purposes of doing a simulated route lookup for RTM_GETROUTE
requests. From Florian Larysch.
3) Don't add noop_qdisc to the per-device qdisc hashes, from Cong
Wang.
4) Don't call netdev_change_features with the team lock held, from
Xin Long.
5) Revert TCP F-RTO extension to catch more spurious timeouts because
it interacts very badly with some middle-boxes. From Yuchung
Cheng.
6) Fix the loss of error values in l2tp {s,g}etsockopt calls, from
Guillaume Nault.
7) ctnetlink uses bit positions where it should be using bit masks,
fix from Liping Zhang.
8) Missing RCU locking in netfilter helper code, from Gao Feng.
9) Avoid double frees and use-after-frees in tcp_disconnect(), from
Eric Dumazet.
10) Don't do a changelink before we register the netdevice in
bridging, from Ido Schimmel.
11) Lock the ipv6 device address list properly, from Rabin Vincent"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (29 commits)
netfilter: ipt_CLUSTERIP: Fix wrong conntrack netns refcnt usage
netfilter: nft_hash: do not dump the auto generated seed
drivers: net: usb: qmi_wwan: add QMI_QUIRK_SET_DTR for Telit PID 0x1201
ipv6: Fix idev->addr_list corruption
net: xdp: don't export dev_change_xdp_fd()
bridge: netlink: register netdevice before executing changelink
bridge: implement missing ndo_uninit()
bpf: reference may_access_skb() from __bpf_prog_run()
tcp: clear saved_syn in tcp_disconnect()
netfilter: nf_ct_expect: use proper RCU list traversal/update APIs
netfilter: ctnetlink: skip dumping expect when nfct_help(ct) is NULL
netfilter: make it safer during the inet6_dev->addr_list traversal
netfilter: ctnetlink: make it safer when checking the ct helper name
netfilter: helper: Add the rcu lock when call __nf_conntrack_helper_find
netfilter: ctnetlink: using bit to represent the ct event
netfilter: xt_TCPMSS: add more sanity tests on tcph->doff
net: tcp: Increase TCP_MIB_OUTRSTS even though fail to alloc skb
l2tp: don't mask errors in pppol2tp_getsockopt()
l2tp: don't mask errors in pppol2tp_setsockopt()
tcp: restrict F-RTO to work-around broken middle-boxes
...
Pull x86 fixes from Thomas Gleixner:
"A set of small fixes for x86:
- fix locking in RDT to prevent memory leaks and freeing in use
memory
- prevent setting invalid values for vdso32_enabled which cause
inconsistencies for user space resulting in application crashes.
- plug a race in the vdso32 code between fork and sysctl which causes
inconsistencies for user space resulting in application crashes.
- make MPX signal delivery work in compat mode
- make the dmesg output of traps and faults readable again"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/intel_rdt: Fix locking in rdtgroup_schemata_write()
x86/debug: Fix the printk() debug output of signal_fault(), do_trap() and do_general_protection()
x86/vdso: Plug race between mapping and ELF header setup
x86/vdso: Ensure vdso32_enabled gets set to valid values only
x86/signals: Fix lower/upper bound reporting in compat siginfo
Pull perf fixes from Thomas Gleixner:
"Two small fixes for perf:
- the move to support cross arch annotation introduced per arch
initialization requirements, fullfill them for s/390 (Christian
Borntraeger)
- add the missing initialization to the LBR entries to avoid exposing
random or stale data"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86: Avoid exposing wrong/stale data in intel_pmu_lbr_read_32()
perf annotate s390: Fix perf annotate error -95 (4.10 regression)
