Another miscellaneous pile of MIPS fixes for 4.16:
- lantiq: fixes for clocks and Amazon SE (4.14)
- ralink: fix booting on MT7621 (4.5)
- ralink: fix halt (3.9)
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Merge tag 'mips_fixes_4.16_5' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips
Pull MIPS fixes from James Hogan:
"Another miscellaneous pile of MIPS fixes for 4.16:
- lantiq: fixes for clocks and Amazon SE (4.14)
- ralink: fix booting on MT7621 (4.5)
- ralink: fix halt (3.9)"
* tag 'mips_fixes_4.16_5' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips:
MIPS: ralink: Fix booting on MT7621
MIPS: ralink: Remove ralink_halt()
MIPS: lantiq: ase: Enable MFD_SYSCON
MIPS: lantiq: Enable AHB Bus for USB
MIPS: lantiq: Fix Danube USB clock
- Revert masking INTx where it cannot be enabled, plays poorly with
SR-IOV VFs and presumes DisINTx support.
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Merge tag 'vfio-v4.16-rc7' of git://github.com/awilliam/linux-vfio
Pull VFIO fix from Alex Williamson:
"Revert masking INTx where it cannot be enabled - it plays poorly with
SR-IOV VFs and presumes DisINTx support"
* tag 'vfio-v4.16-rc7' of git://github.com/awilliam/linux-vfio:
Revert: "vfio-pci: Mask INTx if a device is not capabable of enabling it"
* Fix misuse of mtd_ooblayout_ecc() in mtdchar.c
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Merge tag 'mtd/fixes-for-4.16-rc7' of git://git.infradead.org/linux-mtd
Pull MTD fixes from Boris Brezillon:
- Fix several problems in the fsl_ifc NAND controller driver
- Fix misuse of mtd_ooblayout_ecc() in mtdchar.c
* tag 'mtd/fixes-for-4.16-rc7' of git://git.infradead.org/linux-mtd:
mtd: nand: fsl_ifc: Read ECCSTAT0 and ECCSTAT1 registers for IFC 2.0
mtd: nand: fsl_ifc: Fix eccstat array overflow for IFC ver >= 2.0.0
mtd: nand: fsl_ifc: Fix nand waitfunc return value
mtdchar: fix usage of mtd_ooblayout_ecc()
Here are a few small Staging and IIO fixes for various reported issues.
All of them are tiny, the majority being iio driver fixes for small
issues, and one staging driver fix for a memory corruption issue.
All have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO fixes from Greg KH:
"Here are a few small staging and IIO fixes for various reported
issues.
All of them are tiny, the majority being iio driver fixes for small
issues, and one staging driver fix for a memory corruption issue.
All have been in linux-next with no reported issues"
* tag 'staging-4.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: ncpfs: memory corruption in ncp_read_kernel()
iio: st_pressure: st_accel: pass correct platform data to init
Revert "iio: accel: st_accel: remove redundant pointer pdata"
iio: adc: meson-saradc: unlock on error in meson_sar_adc_lock()
dt-bindings: iio: adc: sd-modulator: fix io-channel-cells
iio: adc: stm32-dfsdm: fix multiple channel initialization
iio: adc: stm32-dfsdm: fix clock source selection
iio: adc: stm32-dfsdm: fix call to stop channel
iio: adc: stm32-dfsdm: fix compatible data use
iio: chemical: ccs811: Corrected firmware boot/application mode transition
This is a single hyperv bugfix for 4.16-rc7.
It resolves an issue with the ring-buffer signaling to resolve reported
problems.
It's been in linux-next for a while now with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull hyperv fix from Greg KH:
"This is a single hyperv bugfix for 4.16-rc7.
It resolves an issue with the ring-buffer signaling to resolve
reported problems.
It's been in linux-next for a while now with no reported issues"
* tag 'char-misc-4.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
Drivers: hv: vmbus: Fix ring buffer signaling
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Merge tag 'media/v4.16-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
"Three fixes:
- dvb: fix a Kconfig typo on a help text
- tegra-cec: reset rx_buf_cnt when start bit detected
- rc: lirc does not use LIRC_CAN_SEND_SCANCODE feature"
* tag 'media/v4.16-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: dvb: fix a Kconfig typo
media: tegra-cec: reset rx_buf_cnt when start bit detected
media: rc: lirc does not use LIRC_CAN_SEND_SCANCODE feature
Things look calming down, but people were still busy to plaster over
small holes:
- Two fixes to harden against races in aloop driver
- A correction of a long-standing bug in USB-audio UAC2 processing
unit parser
- As usual suspects, HD-audio: a workaround for Coffee Lake
controller and a few other device-specific fixes
All small and for stable.
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Merge tag 'sound-4.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Things look calming down, but people were still busy to plaster over
small holes:
- Two fixes to harden against races in aloop driver
- A correction of a long-standing bug in USB-audio UAC2 processing
unit parser
- As usual suspects, HD-audio: a workaround for Coffee Lake
controller and a few other device-specific fixes
All small and for stable"
* tag 'sound-4.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: aloop: Fix access to not-yet-ready substream via cable
ALSA: aloop: Sync stale timer before release
ALSA: hda/realtek - Fix speaker no sound after system resume
ALSA: hda/realtek - Fix Dell headset Mic can't record
ALSA: hda - Force polling mode on CFL for fixing codec communication
ALSA: usb-audio: Fix parsing descriptor of UAC2 processing unit
ALSA: hda/realtek - Always immediately update mute LED with pin VREF
Add a testcase for probe point definition. This tests
symbol, address and symbol+offset syntax. The offset
must be positive and smaller than UINT_MAX.
Link: http://lkml.kernel.org/r/152129043097.31874.14273580606301767394.stgit@devbox
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Add a testcase for string type with kprobe event.
This tests good/bad syntax combinations and also
the traced data is correct in several way.
Link: http://lkml.kernel.org/r/152129038381.31874.9201387794548737554.stgit@devbox
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Add a testcase for probe event argument syntax which
ensures the kprobe_events interface correctly parses
given event arguments.
Link: http://lkml.kernel.org/r/152129033679.31874.12705519603869152799.stgit@devbox
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
In Documentation/trace/kprobetrace.txt, it says
@SYM[+|-offs] : Fetch memory at SYM +|- offs (SYM should be a data symbol)
However, the parser doesn't parse minus offset correctly, since
commit 2fba0c8867 ("tracing/kprobes: Fix probe offset to be
unsigned") drops minus ("-") offset support for kprobe probe
address usage.
This fixes the traceprobe_split_symbol_offset() to parse minus
offset again with checking the offset range, and add a minus
offset check in kprobe probe address usage.
Link: http://lkml.kernel.org/r/152129028983.31874.13419301530285775521.stgit@devbox
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Tom Zanussi <tom.zanussi@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org
Fixes: 2fba0c8867 ("tracing/kprobes: Fix probe offset to be unsigned")
Acked-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
v2: use temporaries to trivially reduces object size.
The for-loops process data in the mclk_table but use slck_table.count
as the loop index limit. I believe these are cut-n-paste errors from
the previous almost identical loops as indicated by static analysis.
Fix these.
Detected by CoverityScan, CID#1466001 ("Copy-paste error")
Fixes: 5d97cf39ff ("drm/amd/pp: Add and initialize OD_dpm_table for CI/VI.")
Fixes: 5e4d4fbea5 ("drm/amd/pp: Implement edit_dpm_table on smu7")
Reviewed-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Apparently xf86-video-vmware leaves the mode->type uninitialized
when feeding the mode to the kernel. Thus we have no choice but
to accept the garbage in. We'll just ignore any of the bits we
don't want. The mode type is just a hint anyway, and more
useful for the kernel->userspace direction.
Reported-by: Thomas Hellstrom <thomas@shipmail.org>
CC: Thomas Hellstrom <thomas@shipmail.org>
Cc: Adam Jackson <ajax@redhat.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Fixes: c6ed6dad5c ("drm/uapi: Validate the mode flags/type")
References: https://lists.freedesktop.org/archives/dri-devel/2018-March/170213.html
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180321211246.10152-1-ville.syrjala@linux.intel.com
Tested-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Merge misc fixes from Andrew Morton:
"13 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm, thp: do not cause memcg oom for thp
mm/vmscan: wake up flushers for legacy cgroups too
Revert "mm: page_alloc: skip over regions of invalid pfns where possible"
mm/shmem: do not wait for lock_page() in shmem_unused_huge_shrink()
mm/thp: do not wait for lock_page() in deferred_split_scan()
mm/khugepaged.c: convert VM_BUG_ON() to collapse fail
x86/mm: implement free pmd/pte page interfaces
mm/vmalloc: add interfaces to free unmapped page table
h8300: remove extraneous __BIG_ENDIAN definition
hugetlbfs: check for pgoff value overflow
lockdep: fix fs_reclaim warning
MAINTAINERS: update Mark Fasheh's e-mail
mm/mempolicy.c: avoid use uninitialized preferred_node
Pull libnvdimm fixes from Dan Williams:
"Two regression fixes, two bug fixes for older issues, two fixes for
new functionality added this cycle that have userspace ABI concerns,
and a small cleanup. These have appeared in a linux-next release and
have a build success report from the 0day robot.
* The 4.16 rework of altmap handling led to some configurations
leaking page table allocations due to freeing from the altmap
reservation rather than the page allocator.
The impact without the fix is leaked memory and a WARN() message
when tearing down libnvdimm namespaces. The rework also missed a
place where error handling code needed to be removed that can lead
to a crash if devm_memremap_pages() fails.
* acpi_map_pxm_to_node() had a latent bug whereby it could
misidentify the closest online node to a given proximity domain.
* Block integrity handling was reworked several kernels back to allow
calling add_disk() after setting up the integrity profile.
The nd_btt and nd_blk drivers are just now catching up to fix
automatic partition detection at driver load time.
* The new peristence_domain attribute, a platform indicator of
whether cpu caches are powerfail protected for example, is meant to
be a single value enum and not a set of flags.
This oversight was caught while reviewing new userspace code in
libndctl to communicate the attribute.
Fix this new enabling up so that we are not stuck with an unwanted
userspace ABI"
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
libnvdimm, nfit: fix persistence domain reporting
libnvdimm, region: hide persistence_domain when unknown
acpi, numa: fix pxm to online numa node associations
x86, memremap: fix altmap accounting at free
libnvdimm: remove redundant assignment to pointer 'dev'
libnvdimm, {btt, blk}: do integrity setup before add_disk()
kernel/memremap: Remove stale devres_free() call
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Merge tag 'drm-fixes-for-v4.16-rc7' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"A bunch of fixes all over the place (core, i915, amdgpu, imx, sun4i,
ast, tegra, vmwgfx), nothing too serious or worrying at this stage.
- one uapi fix to stop multi-planar images with getfb
- Sun4i error path and clock fixes
- udl driver mmap offset fix
- i915 DP MST and GPU reset fixes
- vmwgfx mutex and black screen fixes
- imx array underflow fix and vblank fix
- amdgpu: display fixes
- exynos devicetree fix
- ast mode fix"
* tag 'drm-fixes-for-v4.16-rc7' of git://people.freedesktop.org/~airlied/linux: (29 commits)
drm/ast: Fixed 1280x800 Display Issue
drm: udl: Properly check framebuffer mmap offsets
drm/i915: Specify which engines to reset following semaphore/event lockups
drm/vmwgfx: Fix a destoy-while-held mutex problem.
drm/vmwgfx: Fix black screen and device errors when running without fbdev
drm: Reject getfb for multi-plane framebuffers
drm/amd/display: Add one to EDID's audio channel count when passing to DC
drm/amd/display: We shouldn't set format_default on plane as atomic driver
drm/amd/display: Fix FMT truncation programming
drm/amd/display: Allow truncation to 10 bits
drm/sun4i: hdmi: Fix another error handling path in 'sun4i_hdmi_bind()'
drm/sun4i: hdmi: Fix an error handling path in 'sun4i_hdmi_bind()'
drm/i915/dp: Write to SET_POWER dpcd to enable MST hub.
drm/amd/display: fix dereferencing possible ERR_PTR()
drm/amd/display: Refine disable VGA
drm/tegra: Shutdown on driver unbind
drm/tegra: dsi: Don't disable regulator on ->exit()
drm/tegra: dc: Detach IOMMU group from domain only once
dt-bindings: exynos: Document #sound-dai-cells property of the HDMI node
drm/imx: move arming of the vblank event to atomic_flush
...
Commit 2516035499 ("mm, thp: remove __GFP_NORETRY from khugepaged and
madvised allocations") changed the page allocator to no longer detect
thp allocations based on __GFP_NORETRY.
It did not, however, modify the mem cgroup try_charge() path to avoid
oom kill for either khugepaged collapsing or thp faulting. It is never
expected to oom kill a process to allocate a hugepage for thp; reclaim
is governed by the thp defrag mode and MADV_HUGEPAGE, but allocations
(and charging) should fallback instead of oom killing processes.
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1803191409420.124411@chino.kir.corp.google.com
Fixes: 2516035499 ("mm, thp: remove __GFP_NORETRY from khugepaged and madvised allocations")
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 726d061fbd ("mm: vmscan: kick flushers when we encounter dirty
pages on the LRU") added flusher invocation to shrink_inactive_list()
when many dirty pages on the LRU are encountered.
However, shrink_inactive_list() doesn't wake up flushers for legacy
cgroup reclaim, so the next commit bbef938429 ("mm: vmscan: remove old
flusher wakeup from direct reclaim path") removed the only source of
flusher's wake up in legacy mem cgroup reclaim path.
This leads to premature OOM if there is too many dirty pages in cgroup:
# mkdir /sys/fs/cgroup/memory/test
# echo $$ > /sys/fs/cgroup/memory/test/tasks
# echo 50M > /sys/fs/cgroup/memory/test/memory.limit_in_bytes
# dd if=/dev/zero of=tmp_file bs=1M count=100
Killed
dd invoked oom-killer: gfp_mask=0x14000c0(GFP_KERNEL), nodemask=(null), order=0, oom_score_adj=0
Call Trace:
dump_stack+0x46/0x65
dump_header+0x6b/0x2ac
oom_kill_process+0x21c/0x4a0
out_of_memory+0x2a5/0x4b0
mem_cgroup_out_of_memory+0x3b/0x60
mem_cgroup_oom_synchronize+0x2ed/0x330
pagefault_out_of_memory+0x24/0x54
__do_page_fault+0x521/0x540
page_fault+0x45/0x50
Task in /test killed as a result of limit of /test
memory: usage 51200kB, limit 51200kB, failcnt 73
memory+swap: usage 51200kB, limit 9007199254740988kB, failcnt 0
kmem: usage 296kB, limit 9007199254740988kB, failcnt 0
Memory cgroup stats for /test: cache:49632KB rss:1056KB rss_huge:0KB shmem:0KB
mapped_file:0KB dirty:49500KB writeback:0KB swap:0KB inactive_anon:0KB
active_anon:1168KB inactive_file:24760KB active_file:24960KB unevictable:0KB
Memory cgroup out of memory: Kill process 3861 (bash) score 88 or sacrifice child
Killed process 3876 (dd) total-vm:8484kB, anon-rss:1052kB, file-rss:1720kB, shmem-rss:0kB
oom_reaper: reaped process 3876 (dd), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
Wake up flushers in legacy cgroup reclaim too.
Link: http://lkml.kernel.org/r/20180315164553.17856-1-aryabinin@virtuozzo.com
Fixes: bbef938429 ("mm: vmscan: remove old flusher wakeup from direct reclaim path")
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Tested-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Tejun Heo <tj@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
shmem_unused_huge_shrink() gets called from reclaim path. Waiting for
page lock may lead to deadlock there.
There was a bug report that may be attributed to this:
http://lkml.kernel.org/r/alpine.LRH.2.11.1801242349220.30642@mail.ewheeler.net
Replace lock_page() with trylock_page() and skip the page if we failed
to lock it. We will get to the page on the next scan.
We can test for the PageTransHuge() outside the page lock as we only
need protection against splitting the page under us. Holding pin oni
the page is enough for this.
Link: http://lkml.kernel.org/r/20180316210830.43738-1-kirill.shutemov@linux.intel.com
Fixes: 779750d20b ("shmem: split huge pages beyond i_size under memory pressure")
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Eric Wheeler <linux-mm@lists.ewheeler.net>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Hugh Dickins <hughd@google.com>
Cc: <stable@vger.kernel.org> [4.8+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
deferred_split_scan() gets called from reclaim path. Waiting for page
lock may lead to deadlock there.
Replace lock_page() with trylock_page() and skip the page if we failed
to lock it. We will get to the page on the next scan.
Link: http://lkml.kernel.org/r/20180315150747.31945-1-kirill.shutemov@linux.intel.com
Fixes: 9a982250f7 ("thp: introduce deferred_split_huge_page()")
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
khugepaged is not yet able to convert PTE-mapped huge pages back to PMD
mapped. We do not collapse such pages. See check
khugepaged_scan_pmd().
But if between khugepaged_scan_pmd() and __collapse_huge_page_isolate()
somebody managed to instantiate THP in the range and then split the PMD
back to PTEs we would have a problem --
VM_BUG_ON_PAGE(PageCompound(page)) will get triggered.
It's possible since we drop mmap_sem during collapse to re-take for
write.
Replace the VM_BUG_ON() with graceful collapse fail.
Link: http://lkml.kernel.org/r/20180315152353.27989-1-kirill.shutemov@linux.intel.com
Fixes: b1caa957ae ("khugepaged: ignore pmd tables with THP mapped with ptes")
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Implement pud_free_pmd_page() and pmd_free_pte_page() on x86, which
clear a given pud/pmd entry and free up lower level page table(s).
The address range associated with the pud/pmd entry must have been
purged by INVLPG.
Link: http://lkml.kernel.org/r/20180314180155.19492-3-toshi.kani@hpe.com
Fixes: e61ce6ade4 ("mm: change ioremap to set up huge I/O mappings")
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Reported-by: Lei Li <lious.lilei@hisilicon.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
On architectures with CONFIG_HAVE_ARCH_HUGE_VMAP set, ioremap() may
create pud/pmd mappings. A kernel panic was observed on arm64 systems
with Cortex-A75 in the following steps as described by Hanjun Guo.
1. ioremap a 4K size, valid page table will build,
2. iounmap it, pte0 will set to 0;
3. ioremap the same address with 2M size, pgd/pmd is unchanged,
then set the a new value for pmd;
4. pte0 is leaked;
5. CPU may meet exception because the old pmd is still in TLB,
which will lead to kernel panic.
This panic is not reproducible on x86. INVLPG, called from iounmap,
purges all levels of entries associated with purged address on x86. x86
still has memory leak.
The patch changes the ioremap path to free unmapped page table(s) since
doing so in the unmap path has the following issues:
- The iounmap() path is shared with vunmap(). Since vmap() only
supports pte mappings, making vunmap() to free a pte page is an
overhead for regular vmap users as they do not need a pte page freed
up.
- Checking if all entries in a pte page are cleared in the unmap path
is racy, and serializing this check is expensive.
- The unmap path calls free_vmap_area_noflush() to do lazy TLB purges.
Clearing a pud/pmd entry before the lazy TLB purges needs extra TLB
purge.
Add two interfaces, pud_free_pmd_page() and pmd_free_pte_page(), which
clear a given pud/pmd entry and free up a page for the lower level
entries.
This patch implements their stub functions on x86 and arm64, which work
as workaround.
[akpm@linux-foundation.org: fix typo in pmd_free_pte_page() stub]
Link: http://lkml.kernel.org/r/20180314180155.19492-2-toshi.kani@hpe.com
Fixes: e61ce6ade4 ("mm: change ioremap to set up huge I/O mappings")
Reported-by: Lei Li <lious.lilei@hisilicon.com>
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Wang Xuefeng <wxf.wang@hisilicon.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Hanjun Guo <guohanjun@huawei.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Chintan Pandya <cpandya@codeaurora.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A bugfix I did earlier caused a build regression on h8300, which defines
the __BIG_ENDIAN macro in a slightly different way than the generic
code:
arch/h8300/include/asm/byteorder.h:5:0: warning: "__BIG_ENDIAN" redefined
We don't need to define it here, as the same macro is already provided
by the linux/byteorder/big_endian.h, and that version does not conflict.
While this is a v4.16 regression, my earlier patch also got backported
to the 4.14 and 4.15 stable kernels, so we need the fixup there as well.
Link: http://lkml.kernel.org/r/20180313120752.2645129-1-arnd@arndb.de
Fixes: 101110f627 ("Kbuild: always define endianess in kconfig.h")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A vma with vm_pgoff large enough to overflow a loff_t type when
converted to a byte offset can be passed via the remap_file_pages system
call. The hugetlbfs mmap routine uses the byte offset to calculate
reservations and file size.
A sequence such as:
mmap(0x20a00000, 0x600000, 0, 0x66033, -1, 0);
remap_file_pages(0x20a00000, 0x600000, 0, 0x20000000000000, 0);
will result in the following when task exits/file closed,
kernel BUG at mm/hugetlb.c:749!
Call Trace:
hugetlbfs_evict_inode+0x2f/0x40
evict+0xcb/0x190
__dentry_kill+0xcb/0x150
__fput+0x164/0x1e0
task_work_run+0x84/0xa0
exit_to_usermode_loop+0x7d/0x80
do_syscall_64+0x18b/0x190
entry_SYSCALL_64_after_hwframe+0x3d/0xa2
The overflowed pgoff value causes hugetlbfs to try to set up a mapping
with a negative range (end < start) that leaves invalid state which
causes the BUG.
The previous overflow fix to this code was incomplete and did not take
the remap_file_pages system call into account.
[mike.kravetz@oracle.com: v3]
Link: http://lkml.kernel.org/r/20180309002726.7248-1-mike.kravetz@oracle.com
[akpm@linux-foundation.org: include mmdebug.h]
[akpm@linux-foundation.org: fix -ve left shift count on sh]
Link: http://lkml.kernel.org/r/20180308210502.15952-1-mike.kravetz@oracle.com
Fixes: 045c7a3f53 ("hugetlbfs: fix offset overflow in hugetlbfs mmap")
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Reported-by: Nic Losby <blurbdust@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Yisheng Xie <xieyisheng1@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dave Jones reported fs_reclaim lockdep warnings.
============================================
WARNING: possible recursive locking detected
4.15.0-rc9-backup-debug+ #1 Not tainted
--------------------------------------------
sshd/24800 is trying to acquire lock:
(fs_reclaim){+.+.}, at: [<0000000084f438c2>] fs_reclaim_acquire.part.102+0x5/0x30
but task is already holding lock:
(fs_reclaim){+.+.}, at: [<0000000084f438c2>] fs_reclaim_acquire.part.102+0x5/0x30
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(fs_reclaim);
lock(fs_reclaim);
*** DEADLOCK ***
May be due to missing lock nesting notation
2 locks held by sshd/24800:
#0: (sk_lock-AF_INET6){+.+.}, at: [<000000001a069652>] tcp_sendmsg+0x19/0x40
#1: (fs_reclaim){+.+.}, at: [<0000000084f438c2>] fs_reclaim_acquire.part.102+0x5/0x30
stack backtrace:
CPU: 3 PID: 24800 Comm: sshd Not tainted 4.15.0-rc9-backup-debug+ #1
Call Trace:
dump_stack+0xbc/0x13f
__lock_acquire+0xa09/0x2040
lock_acquire+0x12e/0x350
fs_reclaim_acquire.part.102+0x29/0x30
kmem_cache_alloc+0x3d/0x2c0
alloc_extent_state+0xa7/0x410
__clear_extent_bit+0x3ea/0x570
try_release_extent_mapping+0x21a/0x260
__btrfs_releasepage+0xb0/0x1c0
btrfs_releasepage+0x161/0x170
try_to_release_page+0x162/0x1c0
shrink_page_list+0x1d5a/0x2fb0
shrink_inactive_list+0x451/0x940
shrink_node_memcg.constprop.88+0x4c9/0x5e0
shrink_node+0x12d/0x260
try_to_free_pages+0x418/0xaf0
__alloc_pages_slowpath+0x976/0x1790
__alloc_pages_nodemask+0x52c/0x5c0
new_slab+0x374/0x3f0
___slab_alloc.constprop.81+0x47e/0x5a0
__slab_alloc.constprop.80+0x32/0x60
__kmalloc_track_caller+0x267/0x310
__kmalloc_reserve.isra.40+0x29/0x80
__alloc_skb+0xee/0x390
sk_stream_alloc_skb+0xb8/0x340
tcp_sendmsg_locked+0x8e6/0x1d30
tcp_sendmsg+0x27/0x40
inet_sendmsg+0xd0/0x310
sock_write_iter+0x17a/0x240
__vfs_write+0x2ab/0x380
vfs_write+0xfb/0x260
SyS_write+0xb6/0x140
do_syscall_64+0x1e5/0xc05
entry_SYSCALL64_slow_path+0x25/0x25
This warning is caused by commit d92a8cfcb3 ("locking/lockdep:
Rework FS_RECLAIM annotation") which replaced the use of
lockdep_{set,clear}_current_reclaim_state() in __perform_reclaim()
and lockdep_trace_alloc() in slab_pre_alloc_hook() with
fs_reclaim_acquire()/ fs_reclaim_release().
Since __kmalloc_reserve() from __alloc_skb() adds __GFP_NOMEMALLOC |
__GFP_NOWARN to gfp_mask, and all reclaim path simply propagates
__GFP_NOMEMALLOC, fs_reclaim_acquire() in slab_pre_alloc_hook() is
trying to grab the 'fake' lock again when __perform_reclaim() already
grabbed the 'fake' lock.
The
/* this guy won't enter reclaim */
if ((current->flags & PF_MEMALLOC) && !(gfp_mask & __GFP_NOMEMALLOC))
return false;
test which causes slab_pre_alloc_hook() to try to grab the 'fake' lock
was added by commit cf40bd16fd ("lockdep: annotate reclaim context
(__GFP_NOFS)"). But that test is outdated because PF_MEMALLOC thread
won't enter reclaim regardless of __GFP_NOMEMALLOC after commit
341ce06f69 ("page allocator: calculate the alloc_flags for allocation
only once") added the PF_MEMALLOC safeguard (
/* Avoid recursion of direct reclaim */
if (p->flags & PF_MEMALLOC)
goto nopage;
in __alloc_pages_slowpath()).
Thus, let's fix outdated test by removing __GFP_NOMEMALLOC test and
allow __need_fs_reclaim() to return false.
Link: http://lkml.kernel.org/r/201802280650.FJC73911.FOSOMLJVFFQtHO@I-love.SAKURA.ne.jp
Fixes: d92a8cfcb3 ("locking/lockdep: Rework FS_RECLAIM annotation")
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reported-by: Dave Jones <davej@codemonkey.org.uk>
Tested-by: Dave Jones <davej@codemonkey.org.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Nick Piggin <npiggin@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Nikolay Borisov <nborisov@suse.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: <stable@vger.kernel.org> [4.14+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
I'd like to use my personal e-mail for Ocfs2 requests and review.
Link: http://lkml.kernel.org/r/20180311231356.9385-1-mfasheh@versity.com
Signed-off-by: Mark Fasheh <mark@fasheh.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alexander reported a use of uninitialized memory in __mpol_equal(),
which is caused by incorrect use of preferred_node.
When mempolicy in mode MPOL_PREFERRED with flags MPOL_F_LOCAL, it uses
numa_node_id() instead of preferred_node, however, __mpol_equal() uses
preferred_node without checking whether it is MPOL_F_LOCAL or not.
[akpm@linux-foundation.org: slight comment tweak]
Link: http://lkml.kernel.org/r/4ebee1c2-57f6-bcb8-0e2d-1833d1ee0bb7@huawei.com
Fixes: fc36b8d3d8 ("mempolicy: use MPOL_F_LOCAL to Indicate Preferred Local Policy")
Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
Reported-by: Alexander Potapenko <glider@google.com>
Tested-by: Alexander Potapenko <glider@google.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The original ast driver cannot display properly if the resolution is 1280x800 and the pixel clock is 83.5MHz.
Here is the update to fix it.
Signed-off-by: Y.C. Chen <yc_chen@aspeedtech.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
- Revert the recent change adding battery quirks for Asus GL502VSK
and UX305LA as these quirks turn out to be inadequate and possibly
premature (Daniel Drake).
- Fix an off-by-one error in the resource allocation part of the
watchdog driver based on the ACPI WDAT table (Takashi Iwai).
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Merge tag 'acpi-4.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These revert one recent commit that added incorrect battery quirks for
some Asus systems and fix an off-by-one error in the watchdog driver
based on the ACPI WDAT table.
Specifics:
- Revert the recent change adding battery quirks for Asus GL502VSK
and UX305LA as these quirks turn out to be inadequate and possibly
premature (Daniel Drake).
- Fix an off-by-one error in the resource allocation part of the
watchdog driver based on the ACPI WDAT table (Takashi Iwai)"
* tag 'acpi-4.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / watchdog: Fix off-by-one error at resource assignment
Revert "ACPI / battery: Add quirk for Asus GL502VSK and UX305LA"
- Propagate error in modules_open() to avoid possible later NULL
dereference if seq_open() had failed.
Signed-off-by: Jessica Yu <jeyu@kernel.org>
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Merge tag 'modules-for-v4.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
Pull modules fix from Jessica Yu:
"Propagate error in modules_open() to avoid possible later NULL
dereference if seq_open() had failed"
* tag 'modules-for-v4.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
module: propagate error in modules_open()
Pull networking fixes from David Miller:
1) Always validate XFRM esn replay attribute, from Florian Westphal.
2) Fix RCU read lock imbalance in xfrm_get_tos(), from Xin Long.
3) Don't try to get firmware dump if not loaded in iwlwifi, from Shaul
Triebitz.
4) Fix BPF helpers to deal with SCTP GSO SKBs properly, from Daniel
Axtens.
5) Fix some interrupt handling issues in e1000e driver, from Benjamin
Poitier.
6) Use strlcpy() in several ethtool get_strings methods, from Florian
Fainelli.
7) Fix rhlist dup insertion, from Paul Blakey.
8) Fix SKB leak in netem packet scheduler, from Alexey Kodanev.
9) Fix driver unload crash when link is up in smsc911x, from Jeremy
Linton.
10) Purge out invalid socket types in l2tp_tunnel_create(), from Eric
Dumazet.
11) Need to purge the write queue when TCP connections are aborted,
otherwise userspace using MSG_ZEROCOPY can't close the fd. From
Soheil Hassas Yeganeh.
12) Fix double free in error path of team driver, from Arkadi
Sharshevsky.
13) Filter fixes for hv_netvsc driver, from Stephen Hemminger.
14) Fix non-linear packet access in ipv6 ndisc code, from Lorenzo
Bianconi.
15) Properly filter out unsupported feature flags in macvlan driver,
from Shannon Nelson.
16) Don't request loading the diag module for a protocol if the protocol
itself is not even registered. From Xin Long.
17) If datagram connect fails in ipv6, make sure the socket state is
consistent afterwards. From Paolo Abeni.
18) Use after free in qed driver, from Dan Carpenter.
19) If received ipv4 PMTU is less than the min pmtu, lock the mtu in the
entry. From Sabrina Dubroca.
20) Fix sleep in atomic in tg3 driver, from Jonathan Toppins.
21) Fix vlan in vlan untagging in some situations, from Toshiaki Makita.
22) Fix double SKB free in genlmsg_mcast(). From Nicolas Dichtel.
23) Fix NULL derefs in error paths of tcf_*_init(), from Davide Caratti.
24) Unbalanced PM runtime calls in FEC driver, from Florian Fainelli.
25) Memory leak in gemini driver, from Igor Pylypiv.
26) IDR leaks in error paths of tcf_*_init() functions, from Davide
Caratti.
27) Need to use GFP_ATOMIC in seg6_build_state(), from David Lebrun.
28) Missing dev_put() in error path of macsec_newlink(), from Dan
Carpenter.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (201 commits)
macsec: missing dev_put() on error in macsec_newlink()
net: dsa: Fix functional dsa-loop dependency on FIXED_PHY
hv_netvsc: common detach logic
hv_netvsc: change GPAD teardown order on older versions
hv_netvsc: use RCU to fix concurrent rx and queue changes
hv_netvsc: disable NAPI before channel close
net/ipv6: Handle onlink flag with multipath routes
ppp: avoid loop in xmit recursion detection code
ipv6: sr: fix NULL pointer dereference when setting encap source address
ipv6: sr: fix scheduling in RCU when creating seg6 lwtunnel state
net: aquantia: driver version bump
net: aquantia: Implement pci shutdown callback
net: aquantia: Allow live mac address changes
net: aquantia: Add tx clean budget and valid budget handling logic
net: aquantia: Change inefficient wait loop on fw data reads
net: aquantia: Fix a regression with reset on old firmware
net: aquantia: Fix hardware reset when SPI may rarely hangup
s390/qeth: on channel error, reject further cmd requests
s390/qeth: lock read device while queueing next buffer
s390/qeth: when thread completes, wake up all waiters
...
- dw_mmc: Fix the suspend/resume issue for Exynos5433
- dw_mmc: Fix the DTO/CTO timeout overflow calculation for 32-bit systems
- dw_mmc: Make PIO mode work when failing with idmac when dw_mci_reset occurs
- sdhci-acpi: Re-allow IRQ 0 to fix broken probe
MMC core:
- Update EXT_CSD caches to correctly switch partition for ioctl calls
- Fix tracepoint print of blk_addr and blksz
- Disable HPI on broken Micron (Numonyx) eMMC cards
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Merge tag 'mmc-v4.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"A couple of MMC fixes intended for v4.16-rc7:
MMC host:
- dw_mmc: Fix the suspend/resume issue for Exynos5433
- dw_mmc: Fix the DTO/CTO timeout overflow calculation for 32-bit
systems
- dw_mmc: Make PIO mode work when failing with idmac when
dw_mci_reset occurs
- sdhci-acpi: Re-allow IRQ 0 to fix broken probe
MMC core:
- Update EXT_CSD caches to correctly switch partition for ioctl calls
- Fix tracepoint print of blk_addr and blksz
- Disable HPI on broken Micron (Numonyx) eMMC cards"
* tag 'mmc-v4.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sdhci-acpi: Fix IRQ 0
mmc: dw_mmc: fix falling from idmac to PIO mode when dw_mci_reset occurs
mmc: core: Fix tracepoint print of blk_addr and blksz
mmc: core: Disable HPI for certain Micron (Numonyx) eMMC cards
mmc: dw_mmc: exynos: fix the suspend/resume issue for exynos5433
mmc: block: fix updating ext_csd caches on ioctl call
mmc: dw_mmc: Fix the DTO/CTO timeout overflow calculation for 32-bit systems
then we have a couple of error path fixes on the sun4i driver. Still on that
driver there is a clk fix and finally a mmap offset fix on the udl driver.
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Merge tag 'drm-misc-fixes-2018-03-22' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Main change is a patch to reject getfb call for multiplanar framebuffers,
then we have a couple of error path fixes on the sun4i driver. Still on that
driver there is a clk fix and finally a mmap offset fix on the udl driver.
* tag 'drm-misc-fixes-2018-03-22' of git://anongit.freedesktop.org/drm/drm-misc:
drm: udl: Properly check framebuffer mmap offsets
drm: Reject getfb for multi-plane framebuffers
drm/sun4i: hdmi: Fix another error handling path in 'sun4i_hdmi_bind()'
drm/sun4i: hdmi: Fix an error handling path in 'sun4i_hdmi_bind()'
drm/sun4i: Fix an error handling path in 'sun4i_drv_bind()'
drm/sun4i: Fix exclusivity of the TCON clocks
GVT regression fix that caused guest VM GPU hang.
Fix for race conditions in declaring GPU wedged (hit in CI).
* tag 'drm-intel-next-fixes-2018-03-22' of git://anongit.freedesktop.org/drm/drm-intel:
drm/i915/gvt: force to set all context control bits from guest
drm/i915/gvt: Update PDPs after a vGPU mm object is pinned.
drm/i915/gvt: Invalidate vGPU PPGTT mm objects during a vGPU reset.
drm/i915/kvmgt: Handle kzalloc failure
drm/i915/gvt: fix spelling mistake: "destoried" -> "destroyed"
drm/i915/gvt: Remove reduntant printing of untracked mmio
drm/i915/pmu: Work around compiler warnings on some kernel configs
drm/i915: Only call tasklet_kill() on the first prepare_reset
drm/i915: Wrap engine->schedule in RCU locks for set-wedge protection
drm/i915/icl: do not save DDI A/E sharing bit for ICL
A relative large set of various improvements for vmwgfx. Some of them
have been around for a while, some are relatively new, but functionality
should have been tested in our standalone repo.
* 'vmwgfx-next' of git://people.freedesktop.org/~thomash/linux:
drm/vmwgfx: Bump version patchlevel and date
drm/vmwgfx: use monotonic event timestamps
drm/vmwgfx: Unpin the screen object backup buffer when not used
drm/vmwgfx: Stricter count of legacy surface device resources
drm/vmwgfx: Use kasprintf
drm/vmwgfx: Get rid of the device-private suspended member
drm/vmwgfx: Improve on hibernation
drm/vmwgfx: Avoid pinning fbdev framebuffers
drm/vmwgfx: Fix multiple command buffer context use
drm/vmwgfx: Use the cpu blit utility for framebuffer to screen target blits
drm/vmwgfx: Add a cpu blit utility that can be used for page-backed bos
drm/ttm: Export the ttm_k[un]map_atomic_prot API.
drm/ttm: Clean up kmap_atomic_prot selection code
drm/vmwgfx: Cursor update fixes
drm/vmwgfx: Send the correct nonblock option for atomic_commit
drm/vmwgfx: Move the stdu vblank event to atomic function
drm/vmwgfx: Move screen object page flip to atomic function
drm/vmwgfx: Remove drm_crtc_arm_vblank_event from atomic flush
drm/vmwgfx: Move surface copy cmd to atomic function
drm/vmwgfx: Avoid iterating over display unit if crtc is available
Changes this time mostly come down to:
- hook up the DRM GPU scheduler
- prep work for GC7000L support, to be completed in the next cycle
* 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux: (22 commits)
drm/etnaviv: bump HW job limit to 4
drm/etnaviv: etnaviv_sched: Staticize functions when possible
drm/etnaviv: add PTA handling to MMUv2
drm/etnaviv: add function to load the initial PTA state
drm/etnaviv: handle security states
drm/etnaviv: add security handling mode enum
drm/etnaviv: add hardware database
drm/etnaviv: add more minor features fields
drm/etnaviv: update hardware headers from rnndb
drm/etnaviv: add support for slave interface clock
drm/etnaviv: split out and optimize MMU fault dumping
drm/etnaviv: remove the need for a gpu-subsystem DT node
dt-bindings: etnaviv: add slave interface clock
drm/etnaviv: use correct format specifier for size_t
drm/etnaviv: replace hangcheck with scheduler timeout
drm/etnaviv: lock BOs after all other submit work is done
drm/etnaviv: move dependency handling to scheduler
drm/etnaviv: hook up DRM GPU scheduler
drm/etnaviv: track fences by IDR instead of seqno
drm/etnaviv: add missing major features field to debugfs
...
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Merge tag 'drm-intel-fixes-2018-03-21' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
One fix for DP MST and one fix for GPU reset on hang check.
* tag 'drm-intel-fixes-2018-03-21' of git://anongit.freedesktop.org/drm/drm-intel:
drm/i915: Specify which engines to reset following semaphore/event lockups
drm/i915/dp: Write to SET_POWER dpcd to enable MST hub.
Two vmwgfx fixes for 4.16. Both cc'd stable.
* 'vmwgfx-fixes-4.16' of git://people.freedesktop.org/~thomash/linux:
drm/vmwgfx: Fix a destoy-while-held mutex problem.
drm/vmwgfx: Fix black screen and device errors when running without fbdev
- fix an array underflow error by reordering the range check before the array
subscript in ipu-prg.
- make some local functions static in ipuv3-plane.
- add a missng header for ipu_planes_assign_pre in ipuv3-plane.
- move arming of the vblank event from atomic_begin to atomic_flush, to avoid
signalling atomic commit completion to userspace before plane atomic_update
has finished, due to a race condition that is likely to be hit on i.MX6QP on
PRE enabled channels.
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Merge tag 'imx-drm-fixes-2018-03-22' of git://git.pengutronix.de/git/pza/linux into drm-fixes
drm/imx: fixes for early vblank event issue, array underflow error
- fix an array underflow error by reordering the range check before the array
subscript in ipu-prg.
- make some local functions static in ipuv3-plane.
- add a missng header for ipu_planes_assign_pre in ipuv3-plane.
- move arming of the vblank event from atomic_begin to atomic_flush, to avoid
signalling atomic commit completion to userspace before plane atomic_update
has finished, due to a race condition that is likely to be hit on i.MX6QP on
PRE enabled channels.
* tag 'imx-drm-fixes-2018-03-22' of git://git.pengutronix.de/git/pza/linux:
drm/imx: move arming of the vblank event to atomic_flush
drm/imx: ipuv3-plane: Include "imx-drm.h" header file
drm/imx: ipuv3-plane: Make functions static when possible
gpu: ipu-v3: prg: avoid possible array underflow
Trivial fix to spelling mistake in pr_err error message text
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
In new asics(vega12), no power state management in driver,
So no need to implement related callback functions.
and add some ps checks in pp_psm.c
Revert "drm/amd/powerplay: add new pp_psm infrastructure for vega12 (v2)"
This reverts commit 7d1a63f3aa331b853e41f92d0e7890ed31de8c13.
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Fix the issue thermal irq was always triggered
as GPU under temperature range detected
The low temp in default thermal policy
was set to -273. so need to use int type for the low temp.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
v2: add sanity checking
v3: make code open
v4: also handle visible to invisible fallback
v5: Since two fallback cases, re-use goto retry
Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
