Dave Airlie [Fri, 1 Nov 2019 01:27:39 +0000 (11:27 +1000)]
Merge tag 'drm-fixes-5.4-2019-10-30' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
drm-fixes-5.4-2019-10-30:
amdgpu:
- clang fixes
- Updated golden settings
- GPUVM fixes for navi
- Navi sdma fix
- Navi display fixes
- Freesync fix
- Gamma fix for DCN
- DP dongle detection fix
- Fix for undervolting on vega10
radeon:
- enable kexec fix for PPC
scheduler:
- set an error on fence if hw job failed
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191030162339.44366-1-alexander.deucher@amd.com
Dave Airlie [Fri, 1 Nov 2019 01:13:35 +0000 (11:13 +1000)]
Merge tag 'drm-intel-fixes-2019-10-31' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- Fix PCH reference clock for FDI on HSW/BDW which was causing users blank screen
- Small documentation fix for TGL display PLLs
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191031171209.GA6586@intel.com
Dave Airlie [Fri, 1 Nov 2019 01:09:42 +0000 (11:09 +1000)]
Merge tag 'drm-misc-fixes-2019-10-30-1' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
- three fixes for panfrost, one to silence a warning, one to fix
runtime_pm and one to prevent bogus pointer dereferences
- one fix for a memleak in v3d
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191030182207.evrscl7lnv42u5zu@hendrix
Dave Airlie [Fri, 1 Nov 2019 01:08:24 +0000 (11:08 +1000)]
Merge branch 'etnaviv/fixes' of https://git.pengutronix.de/git/lst/linux into drm-fixes
One memory corruption fix in the MMUv2 GPU coredump code, a deadlock
fix also in the coredump code and reintroduction of a helpful message,
which got dropped by accident in this cycle.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas Stach <l.stach@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/b0d640267662e3ce5e0089d0afedc1baba55058d.camel@pengutronix.de
Nick Desaulniers [Wed, 16 Oct 2019 23:02:09 +0000 (16:02 -0700)]
drm/amdgpu: enable -msse2 for GCC 7.1+ users
A final attempt at enabling sse2 for GCC users.
Orininally attempted in:
commit
10117450735c ("drm/amd/display: add -msse2 to prevent Clang from emitting libcalls to undefined SW FP routines")
Reverted due to "reported instability" in:
commit
193392ed9f69 ("Revert "drm/amd/display: add -msse2 to prevent Clang from emitting libcalls to undefined SW FP routines"")
Re-added just for Clang in:
commit
0f0727d971f6 ("drm/amd/display: readd -msse2 to prevent Clang from emitting libcalls to undefined SW FP routines")
The original report didn't have enough information to know if the GPF
was due to misalignment, but I suspect that it was. (The missing
information was the disassembly of the function at the bottom of the
trace, to see if the instruction pointer pointed to an instruction with
16B alignment memory operand requirements. The stack trace does show
the stack was only 8B but not 16B aligned though, which makes this a
strong possibility).
Now that the stack misalignment issue has been fixed for users of GCC
7.1+, reattempt adding -msse2. This matches Clang.
It will likely never be safe to enable this for pre-GCC 7.1 AND use a
16B aligned stack in these translation units.
This is only a functional change for GCC 7.1+ users, and should be boot
tested.
Link: https://bugs.freedesktop.org/show_bug.cgi?id=109487
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Nick Desaulniers [Wed, 16 Oct 2019 23:02:08 +0000 (16:02 -0700)]
drm/amdgpu: fix stack alignment ABI mismatch for GCC 7.1+
GCC earlier than 7.1 errors when compiling code that makes use of
`double`s and sets a stack alignment outside of the range of [2^4-2^12]:
$ cat foo.c
double foo(double x, double y) {
return x + y;
}
$ gcc-4.9 -mpreferred-stack-boundary=3 foo.c
error: -mpreferred-stack-boundary=3 is not between 4 and 12
This is likely why the AMDGPU driver was ever compiled with a different
stack alignment (and thus different ABI) than the rest of the x86
kernel. The kernel uses 8B stack alignment, while the driver was using
16B stack alignment in a few places.
Since GCC 7.1+ doesn't error, fix the ABI mismatch for users of newer
versions of GCC.
There was discussion about whether to mark the driver broken or not for
users of GCC earlier than 7.1, but since the driver currently is
working, don't explicitly break the driver for them here.
Relying on differing stack alignment is unspecified behavior, and
brittle, and may break in the future.
This patch is no functional change for GCC users earlier than 7.1. It's
been compile tested on GCC 4.9 and 8.3 to check the correct flags. It
should be boot tested when built with GCC 7.1+.
-mincoming-stack-boundary= or -mstackrealign may help keep this code
building for pre-GCC 7.1 users.
The version check for GCC is broken into two conditionals, both because
cc-ifversion is currently GCC specific, and it simplifies a subsequent
patch.
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Nick Desaulniers [Wed, 16 Oct 2019 23:02:07 +0000 (16:02 -0700)]
drm/amdgpu: fix stack alignment ABI mismatch for Clang
The x86 kernel is compiled with an 8B stack alignment via
`-mpreferred-stack-boundary=3` for GCC since 3.6-rc1 via
commit
d9b0cde91c60 ("x86-64, gcc: Use -mpreferred-stack-boundary=3 if supported")
or `-mstack-alignment=8` for Clang. Parts of the AMDGPU driver are
compiled with 16B stack alignment.
Generally, the stack alignment is part of the ABI. Linking together two
different translation units with differing stack alignment is dangerous,
particularly when the translation unit with the smaller stack alignment
makes calls into the translation unit with the larger stack alignment.
While 8B aligned stacks are sometimes also 16B aligned, they are not
always.
Multiple users have reported General Protection Faults (GPF) when using
the AMDGPU driver compiled with Clang. Clang is placing objects in stack
slots assuming the stack is 16B aligned, and selecting instructions that
require 16B aligned memory operands.
At runtime, syscall handlers with 8B aligned stack call into code that
assumes 16B stack alignment. When the stack is a multiple of 8B but not
16B, these instructions result in a GPF.
Remove the code that added compatibility between the differing compiler
flags, as it will result in runtime GPFs when built with Clang. Cleanups
for GCC will be sent in later patches in the series.
Link: https://github.com/ClangBuiltLinux/linux/issues/735
Debugged-by: Yuxuan Shui <yshuiv7@gmail.com>
Reported-by: Shirish S <shirish.s@amd.com>
Reported-by: Yuxuan Shui <yshuiv7@gmail.com>
Suggested-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Kyle Mahlkuch [Fri, 25 Oct 2019 20:40:50 +0000 (15:40 -0500)]
drm/radeon: Fix EEH during kexec
During kexec some adapters hit an EEH since they are not properly
shut down in the radeon_pci_shutdown() function. Adding
radeon_suspend_kms() fixes this issue.
Enabled only on PPC because this patch causes issues on some other
boards.
Signed-off-by: Kyle Mahlkuch <kmahlkuc@linux.vnet.ibm.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Tue, 29 Oct 2019 21:14:15 +0000 (17:14 -0400)]
drm/amdgpu/gmc10: properly set BANK_SELECT and FRAGMENT_SIZE
These were not aligned for optimal performance for GPUVM.
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tianci Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Pelle van Gils [Thu, 24 Oct 2019 14:04:31 +0000 (16:04 +0200)]
drm/amdgpu/powerplay/vega10: allow undervolting in p7
The vega10_odn_update_soc_table() function does not allow the SCLK
dependent voltage to be set for power-state 7 to a value below the default
in pptable. Change the for-loop condition to allow undervolting in the
highest state.
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=205277
Signed-off-by: Pelle van Gils <pelle@vangils.xyz>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
zhongshiqi [Wed, 23 Oct 2019 08:32:23 +0000 (16:32 +0800)]
dc.c:use kzalloc without test
dc.c:583:null check is needed after using kzalloc function
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: zhongshiqi <zhong.shiqi@zte.com.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Zhan liu [Thu, 17 Oct 2019 18:55:56 +0000 (14:55 -0400)]
drm/amd/display: setting the DIG_MODE to the correct value.
[Why]
This patch is for fixing Navi14 HDMI display pink screen issue.
[How]
Call stream->link->link_enc->funcs->setup twice. This is setting
the DIG_MODE to the correct value after having been overridden by
the call to transmitter control.
Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Michael Strauss [Thu, 3 Oct 2019 15:54:15 +0000 (11:54 -0400)]
drm/amd/display: Passive DP->HDMI dongle detection fix
[WHY]
i2c_read is called to differentiate passive DP->HDMI and DP->DVI-D dongles
The call is expected to fail in DVI-D case but pass in HDMI case
Some HDMI dongles have a chance to fail as well, causing misdetection as DVI-D
[HOW]
Retry i2c_read to ensure failed result is valid
Signed-off-by: Michael Strauss <michael.strauss@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Jun Lei [Thu, 19 Sep 2019 21:43:45 +0000 (17:43 -0400)]
drm/amd/display: add 50us buffer as WA for pstate switch in active
Signed-off-by: Jun Lei <Jun.Lei@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Aidan Yang [Wed, 2 Oct 2019 14:47:31 +0000 (10:47 -0400)]
drm/amd/display: Allow inverted gamma
[why]
There's a use case for inverted gamma
and it's been confirmed that negative slopes are ok.
[how]
Remove code for blocking non-monotonically increasing gamma
Signed-off-by: Aidan Yang <Aidan.Yang@amd.com>
Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Acked-by: Reza Amini <Reza.Amini@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Jun Lei [Thu, 3 Oct 2019 19:09:53 +0000 (15:09 -0400)]
drm/amd/display: do not synchronize "drr" displays
[why]
A display that supports DRR can never really be considered
"synchronized" with any other display because we can dynamically
enable DRR (i.e. without modeset). this will cause their
relative CRTC positions to drift and lose sync. this will disrupt
features such as MCLK switching that assume and depend on
their permanent alignment (that can only change with modeset)
[how]
check for ignore_msa in stream when considered synchronizability
this ignore_msa is basically actually implemented as "supports drr"
Signed-off-by: Jun Lei <Jun.Lei@amd.com>
Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Andrey Grodzovsky [Thu, 24 Oct 2019 19:44:10 +0000 (15:44 -0400)]
drm/amdgpu: If amdgpu_ib_schedule fails return back the error.
Use ERR_PTR to return back the error happened during amdgpu_ib_schedule.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Andrey Grodzovsky [Thu, 24 Oct 2019 19:39:06 +0000 (15:39 -0400)]
drm/sched: Set error to s_fence if HW job submission failed.
Problem:
When run_job fails and HW fence returned is NULL we still signal
the s_fence to avoid hangs but the user has no way of knowing if
the actual HW job was ran and finished.
Fix:
Allow .run_job implementations to return ERR_PTR in the fence pointer
returned and then set this error for s_fence->finished fence so whoever
wait on this fence can inspect the signaled fence for an error.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Tianci.Yin [Thu, 24 Oct 2019 10:06:06 +0000 (18:06 +0800)]
drm/amdgpu/gfx10: update gfx golden settings for navi12
update registers: mmCGTT_SPI_CLK_CTRL
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Tianci.Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Tianci.Yin [Thu, 24 Oct 2019 10:04:52 +0000 (18:04 +0800)]
drm/amdgpu/gfx10: update gfx golden settings for navi14
update registers: mmCGTT_SPI_CLK_CTRL
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Tianci.Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Tianci.Yin [Thu, 24 Oct 2019 10:03:17 +0000 (18:03 +0800)]
drm/amdgpu/gfx10: update gfx golden settings
update registers: mmCGTT_SPI_CLK_CTRL
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Tianci.Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Zhan liu [Tue, 22 Oct 2019 14:50:21 +0000 (10:50 -0400)]
drm/amd/display: Change Navi14's DWB flag to 1
[Why]
DWB (Display Writeback) flag needs to be enabled as 1, or system
will throw out a few warnings when creating dcn20 resource pool.
Also, Navi14's dwb setting needs to match Navi10's,
which has already been set to 1.
[How]
Change value of num_dwb from 0 to 1.
Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Pierre-Eric Pelloux-Prayer [Tue, 22 Oct 2019 17:22:11 +0000 (19:22 +0200)]
drm/amdgpu/sdma5: do not execute 0-sized IBs (v2)
This seems to help with https://bugs.freedesktop.org/show_bug.cgi?id=111481.
v2: insert a NOP instead of skipping all 0-sized IBs to avoid breaking older hw
Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
chen gong [Wed, 23 Oct 2019 05:54:32 +0000 (13:54 +0800)]
drm/amdgpu: Fix SDMA hang when performing VKexample test
VKexample test hang during Occlusion/SDMA/Varia runs.
Clear XNACK_WATERMK in reg SDMA0_UTCL1_WATERMK to fix this issue.
Signed-off-by: chen gong <curry.gong@amd.com>
Reviewed-by: Aaron Liu <aaron.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Ville Syrjälä [Tue, 22 Oct 2019 18:56:43 +0000 (21:56 +0300)]
drm/i915: Fix PCH reference clock for FDI on HSW/BDW
The change to skip the PCH reference initialization during fastboot
did end up breaking FDI. To fix that let's try to do the PCH reference
init whenever we're disabling a DPLL that was using said reference
previously.
Cc: stable@vger.kernel.org
Tested-by: Andrija <akijo97@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=112084
Fixes: b16c7ed95caf ("drm/i915: Do not touch the PCH SSC reference if a PLL is using it")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191022185643.1483-1-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>
(cherry picked from commit
dd5279c71405533d4ddbb9453effc60f0f5bf211)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Anna Karas [Thu, 26 Sep 2019 12:35:59 +0000 (15:35 +0300)]
drm/i915/tgl: Fix doc not corresponding to code
Replace PLLs names used in documentation to that used in the code.
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Fixes: 68ff39c3f8c0 ("drm/i915/tgl: Add new pll ids")
Signed-off-by: Anna Karas <anna.karas@intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190926123559.15717-1-anna.karas@intel.com
(cherry picked from commit
d328bd4f905834c7d87a49962ebc96e397aab7b9)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Robin Murphy [Mon, 28 Oct 2019 20:08:25 +0000 (20:08 +0000)]
drm/panfrost: Don't dereference bogus MMU pointers
It seems that killing an application while faults are occurring
(particularly with a GPU in FPGA at a whopping 40MHz) can lead to
handling a lingering page fault after all the address space contexts
have already been freed. In this situation, the LRU list is empty so
addr_to_drm_mm_node() ends up dereferencing the list head as if it were
a struct panfrost_mmu entry; this leaves "mmu->as" actually pointing at
the pfdev->alloc_mask bitmap, which is also empty, and given that the
fault has a high likelihood of being in AS0, hilarity ensues.
Sadly, the cleanest solution seems to involve another goto. Oh well, at
least it's robust...
Fixes: 65e51e30d862 ("drm/panfrost: Prevent race when handling page fault")
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/9a0b09e6b5851f0d4428b72dd6b8b4c0d0ef4206.1572293305.git.robin.murphy@arm.com
Yi Wang [Fri, 25 Oct 2019 01:30:15 +0000 (09:30 +0800)]
drm/panfrost: fix -Wmissing-prototypes warnings
We get these warnings when build kernel W=1:
drivers/gpu/drm/panfrost/panfrost_perfcnt.c:35:6: warning: no previous prototype for ‘panfrost_perfcnt_clean_cache_done’ [-Wmissing-prototypes]
drivers/gpu/drm/panfrost/panfrost_perfcnt.c:40:6: warning: no previous prototype for ‘panfrost_perfcnt_sample_done’ [-Wmissing-prototypes]
drivers/gpu/drm/panfrost/panfrost_perfcnt.c:190:5: warning: no previous prototype for ‘panfrost_ioctl_perfcnt_enable’ [-Wmissing-prototypes]
drivers/gpu/drm/panfrost/panfrost_perfcnt.c:218:5: warning: no previous prototype for ‘panfrost_ioctl_perfcnt_dump’ [-Wmissing-prototypes]
drivers/gpu/drm/panfrost/panfrost_perfcnt.c:250:6: warning: no previous prototype for ‘panfrost_perfcnt_close’ [-Wmissing-prototypes]
drivers/gpu/drm/panfrost/panfrost_perfcnt.c:264:5: warning: no previous prototype for ‘panfrost_perfcnt_init’ [-Wmissing-prototypes]
drivers/gpu/drm/panfrost/panfrost_perfcnt.c:320:6: warning: no previous prototype for ‘panfrost_perfcnt_fini’ [-Wmissing-prototypes]
drivers/gpu/drm/panfrost/panfrost_mmu.c:227:6: warning: no previous prototype for ‘panfrost_mmu_flush_range’ [-Wmissing-prototypes]
drivers/gpu/drm/panfrost/panfrost_mmu.c:435:5: warning: no previous prototype for ‘panfrost_mmu_map_fault_addr’ [-Wmissing-prototypes]
For file panfrost_mmu.c, make functions static to fix this.
For file panfrost_perfcnt.c, include header file can fix this.
Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
Reviewed-by: Steven Price <steven.price@arm.com>
Cc: stable@vger.kernel.org
[robh: fixup function parameter alignment]
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1571967015-42854-1-git-send-email-wang.yi59@zte.com.cn
Christian Gmeiner [Fri, 25 Oct 2019 10:39:10 +0000 (12:39 +0200)]
drm/etnaviv: fix dumping of iommuv2
etnaviv_iommuv2_dump_size(..) returns the number of PTE * SZ_4K but
etnaviv_iommuv2_dump(..) increments buf pointer even if there is no PTE.
This results in a bad buf pointer which gets used for memcpy(..), when
copying the MMU state in the coredump buffer.
Fixes: afb7b3b1deb4 ("drm/etnaviv: implement IOMMUv2 translation")
Cc: stable@vger.kernel.org
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Lucas Stach [Wed, 16 Oct 2019 14:10:21 +0000 (16:10 +0200)]
drm/etnaviv: reinstate MMUv1 command buffer window check
The switch to per-process address spaces erroneously dropped the check
which validated that the command buffer is mapped through the linear
apperture as required by the hardware. This turned a system
misconfiguration with a helpful error message into a very hard to
debug issue. Reinstate the check at the appropriate location.
Fixes: 17e4660ae3d7 (drm/etnaviv: implement per-process address spaces on MMUv2)
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Guido Günther <agx@sigxcpu.org>
Lucas Stach [Wed, 16 Oct 2019 13:37:06 +0000 (15:37 +0200)]
drm/etnaviv: fix deadlock in GPU coredump
The GPU coredump function violates the locking order by holding the MMU
context lock while trying to acquire the etnaviv_gem_object lock. This
results in a possible ABBA deadlock with other codepaths which follow
the established locking order.
Fortunately this is easy to fix by dropping the MMU context lock
earlier, as the BO dumping doesn't need the MMU context to be stable.
The only thing the BO dumping cares about are the BO mappings, which
are stable across the lifetime of the job.
Fixes: 27b67278e007 (drm/etnaviv: rework MMU handling)
[ Not really the first bad commit, but the one where this fix applies
cleanly. Stable kernels need a manual backport. ]
Reported-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Tested-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Linus Torvalds [Sun, 27 Oct 2019 17:19:19 +0000 (13:19 -0400)]
Linux 5.4-rc5
Linus Torvalds [Sun, 27 Oct 2019 11:14:40 +0000 (07:14 -0400)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"Two fixes for the VMWare guest support:
- Unbreak VMWare platform detection which got wreckaged by converting
an integer constant to a string constant.
- Fix the clang build of the VMWAre hypercall by explicitely
specifying the ouput register for INL instead of using the short
form"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpu/vmware: Fix platform detection VMWARE_PORT macro
x86/cpu/vmware: Use the full form of INL in VMWARE_HYPERCALL, for clang/llvm
Linus Torvalds [Sun, 27 Oct 2019 11:04:22 +0000 (07:04 -0400)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
"A small set of fixes for time(keeping):
- Add a missing include to prevent compiler warnings.
- Make the VDSO implementation of clock_getres() POSIX compliant
again. A recent change dropped the NULL pointer guard which is
required as NULL is a valid pointer value for this function.
- Fix two function documentation typos"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
posix-cpu-timers: Fix two trivial comments
timers/sched_clock: Include local timekeeping.h for missing declarations
lib/vdso: Make clock_getres() POSIX compliant again
Linus Torvalds [Sun, 27 Oct 2019 10:59:34 +0000 (06:59 -0400)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner:
"A set of perf fixes:
kernel:
- Unbreak the tracking of auxiliary buffer allocations which got
imbalanced causing recource limit failures.
- Fix the fallout of splitting of ToPA entries which missed to shift
the base entry PA correctly.
- Use the correct context to lookup the AUX event when unmapping the
associated AUX buffer so the event can be stopped and the buffer
reference dropped.
tools:
- Fix buildiid-cache mode setting in copyfile_mode_ns() when copying
/proc/kcore
- Fix freeing id arrays in the event list so the correct event is
closed.
- Sync sched.h anc kvm.h headers with the kernel sources.
- Link jvmti against tools/lib/ctype.o to have weak strlcpy().
- Fix multiple memory and file descriptor leaks, found by coverity in
perf annotate.
- Fix leaks in error handling paths in 'perf c2c', 'perf kmem', found
by a static analysis tool"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/aux: Fix AUX output stopping
perf/aux: Fix tracking of auxiliary trace buffer allocation
perf/x86/intel/pt: Fix base for single entry topa
perf kmem: Fix memory leak in compact_gfp_flags()
tools headers UAPI: Sync sched.h with the kernel
tools headers kvm: Sync kvm.h headers with the kernel sources
tools headers kvm: Sync kvm headers with the kernel sources
tools headers kvm: Sync kvm headers with the kernel sources
perf c2c: Fix memory leak in build_cl_output()
perf tools: Fix mode setting in copyfile_mode_ns()
perf annotate: Fix multiple memory and file descriptor leaks
perf tools: Fix resource leak of closedir() on the error paths
perf evlist: Fix fix for freed id arrays
perf jvmti: Link against tools/lib/ctype.h to have weak strlcpy()
Linus Torvalds [Sun, 27 Oct 2019 10:55:55 +0000 (06:55 -0400)]
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"Two fixes for interrupt controller drivers:
- Skip IRQ_M_EXT entries in the device tree when initializing the
RISCV PLIC controller to avoid a double init attempt.
- Use the correct ITS list when issuing the VMOVP synchronization
command so the operation works only on the ITS instances which are
associated to a VM"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/sifive-plic: Skip contexts except supervisor in plic_init()
irqchip/gic-v3-its: Use the exact ITSList for VMOVP
Linus Torvalds [Sun, 27 Oct 2019 10:41:52 +0000 (06:41 -0400)]
Merge tag '5.4-rc5-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Seven cifs/smb3 fixes, including three for stable"
* tag '5.4-rc5-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Fix cifsInodeInfo lock_sem deadlock when reconnect occurs
CIFS: Fix use after free of file info structures
CIFS: Fix retry mid list corruption on reconnects
cifs: Fix missed free operations
CIFS: avoid using MID 0xFFFF
cifs: clarify comment about timestamp granularity for old servers
cifs: Handle -EINPROGRESS only when noblockcnt is set
Linus Torvalds [Sun, 27 Oct 2019 10:36:57 +0000 (06:36 -0400)]
Merge tag 'riscv/for-v5.4-rc5-b' of git://git./linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
"Several minor fixes and cleanups for v5.4-rc5:
- Three build fixes for various SPARSEMEM-related kernel
configurations
- Two cleanup patches for the kernel bug and breakpoint trap handler
code"
* tag 'riscv/for-v5.4-rc5-b' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: cleanup do_trap_break
riscv: cleanup <asm/bug.h>
riscv: Fix undefined reference to vmemmap_populate_basepages
riscv: Fix implicit declaration of 'page_to_section'
riscv: fix fs/proc/kcore.c compilation with sparsemem enabled
Linus Torvalds [Sat, 26 Oct 2019 23:43:12 +0000 (19:43 -0400)]
Merge tag 'mips_fixes_5.4_3' of git://git./linux/kernel/git/mips/linux
Pull MIPS fixes from Paul Burton:
"A few MIPS fixes:
- Fix VDSO time-related function behavior for systems where we need
to fall back to syscalls, but were instead returning bogus results.
- A fix to TLB exception handlers for Cavium Octeon systems where
they would inadvertently clobber the $1/$at register.
- A build fix for bcm63xx configurations.
- Switch to using my @kernel.org email address"
* tag 'mips_fixes_5.4_3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: tlbex: Fix build_restore_pagemask KScratch restore
MIPS: bmips: mark exception vectors as char arrays
mips: vdso: Fix __arch_get_hw_counter()
MAINTAINERS: Use @kernel.org address for Paul Burton
Linus Torvalds [Sat, 26 Oct 2019 20:40:04 +0000 (16:40 -0400)]
Merge tag 'tty-5.4-rc5' of git://git./linux/kernel/git/gregkh/tty
Pull tty/serial driver fix from Greg KH:
"Here is a single tty/serial driver fix for 5.4-rc5 that resolves a
reported issue.
It has been in linux-next for a while with no problems"
* tag 'tty-5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
8250-men-mcb: fix error checking when get_num_ports returns -ENODEV
Linus Torvalds [Sat, 26 Oct 2019 20:36:47 +0000 (16:36 -0400)]
Merge tag 'staging-5.4-rc5' of git://git./linux/kernel/git/gregkh/staging
Pull staging driver fix from Greg KH:
"Here is a single staging driver fix, for the wlan-ng driver, that
resolves a reported issue.
It is been in linux-next for a while with no reported issues"
* tag 'staging-5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: wlan-ng: fix exit return when sme->key_idx >= NUM_WEPKEYS
Linus Torvalds [Sat, 26 Oct 2019 19:23:08 +0000 (15:23 -0400)]
Merge tag 'driver-core-5.4-rc5' of git://git./linux/kernel/git/gregkh/driver-core
Pull driver core fix from Greg KH:
"Here is a single sysfs fix for 5.4-rc5.
It resolves an error if you actually try to use the __BIN_ATTR_WO()
macro, seems I never tested it properly before :(
This has been in linux-next for a while with no reported issues"
* tag 'driver-core-5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
sysfs: Fixes __BIN_ATTR_WO() macro
Linus Torvalds [Sat, 26 Oct 2019 19:17:54 +0000 (15:17 -0400)]
Merge tag 'char-misc-5.4-rc5' of git://git./linux/kernel/git/gregkh/char-misc
Pull binder fix from Greg KH:
"This is a single binder fix to resolve a reported issue by Jann. It's
been in linux-next for a while with no reported issues"
* tag 'char-misc-5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
binder: Don't modify VMA bounds in ->mmap handler
Linus Torvalds [Sat, 26 Oct 2019 19:14:55 +0000 (15:14 -0400)]
Merge tag 'usb-5.4-rc5' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a number of small USB driver fixes for 5.4-rc5.
More "fun" with some of the misc USB drivers as found by syzbot, and
there are a number of other small bugfixes in here for reported
issues.
All have been in linux-next for a while with no reported issues"
* tag 'usb-5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: cdns3: Error out if USB_DR_MODE_UNKNOWN in cdns3_core_init_role()
USB: ldusb: fix read info leaks
USB: serial: ti_usb_3410_5052: clean up serial data access
USB: serial: ti_usb_3410_5052: fix port-close races
USB: usblp: fix use-after-free on disconnect
usb: udc: lpc32xx: fix bad bit shift operation
usb: cdns3: Fix dequeue implementation.
USB: legousbtower: fix a signedness bug in tower_probe()
USB: legousbtower: fix memleak on disconnect
USB: ldusb: fix memleak on disconnect
Linus Torvalds [Sat, 26 Oct 2019 19:06:58 +0000 (15:06 -0400)]
Merge branch 'i2c/for-current-fixed' of git://git./linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"A few driver fixes for the I2C subsystem"
* 'i2c/for-current-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: stm32f7: remove warning when compiling with W=1
i2c: stm32f7: fix a race in slave mode with arbitration loss irq
i2c: stm32f7: fix first byte to send in slave mode
i2c: mt65xx: fix NULL ptr dereference
i2c: aspeed: fix master pending state handling
Linus Torvalds [Sat, 26 Oct 2019 18:59:51 +0000 (14:59 -0400)]
Merge tag 'for-linus-2019-10-26' of git://git.kernel.dk/linux-block
Pull block and io_uring fixes from Jens Axboe:
"A bit bigger than usual at this point in time, mostly due to some good
bug hunting work by Pavel that resulted in three io_uring fixes from
him and two from me. Anyway, this pull request contains:
- Revert of the submit-and-wait optimization for io_uring, it can't
always be done safely. It depends on commands always making
progress on their own, which isn't necessarily the case outside of
strict file IO. (me)
- Series of two patches from me and three from Pavel, fixing issues
with shared data and sequencing for io_uring.
- Lastly, two timeout sequence fixes for io_uring (zhangyi)
- Two nbd patches fixing races (Josef)
- libahci regulator_get_optional() fix (Mark)"
* tag 'for-linus-2019-10-26' of git://git.kernel.dk/linux-block:
nbd: verify socket is supported during setup
ata: libahci_platform: Fix regulator_get_optional() misuse
nbd: handle racing with error'ed out commands
nbd: protect cmd->status with cmd->lock
io_uring: fix bad inflight accounting for SETUP_IOPOLL|SETUP_SQTHREAD
io_uring: used cached copies of sq->dropped and cq->overflow
io_uring: Fix race for sqes with userspace
io_uring: Fix broken links with offloading
io_uring: Fix corrupted user_data
io_uring: correct timeout req sequence when inserting a new entry
io_uring : correct timeout req sequence when waiting timeout
io_uring: revert "io_uring: optimize submit_and_wait API"
Linus Torvalds [Sat, 26 Oct 2019 10:35:46 +0000 (06:35 -0400)]
Merge tag 's390-5.4-5' of git://git./linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- Add R_390_GLOB_DAT relocation type support. This fixes boot problem
on linux-next.
- Fix memory leak in zcrypt
* tag 's390-5.4-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/kaslr: add support for R_390_GLOB_DAT relocation type
s390/zcrypt: fix memleak at release
Linus Torvalds [Sat, 26 Oct 2019 10:32:12 +0000 (06:32 -0400)]
Merge tag 'for-linus-5.4-rc5-tag' of git://git./linux/kernel/git/xen/tip
Pull xen fixlet from Juergen Gross:
"Just one patch for issuing a deprecation warning for 32-bit Xen pv
guests"
* tag 'for-linus-5.4-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: issue deprecation warning for 32-bit pv guest
Linus Torvalds [Sat, 26 Oct 2019 10:29:04 +0000 (06:29 -0400)]
Merge tag 'dma-mapping-5.4-2' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping fix from Christoph Hellwig:
"Fix a regression in the intel-iommu get_required_mask conversion
(Arvind Sankar)"
* tag 'dma-mapping-5.4-2' of git://git.infradead.org/users/hch/dma-mapping:
iommu/vt-d: Return the correct dma mask when we are bypassing the IOMMU
Linus Torvalds [Sat, 26 Oct 2019 10:26:04 +0000 (06:26 -0400)]
Merge tag 'dax-fix-5.4-rc5' of git://git./linux/kernel/git/nvdimm/nvdimm
Pull dax fix from Dan Williams:
"Fix a performance regression that followed from a fix to the
conversion of the fsdax implementation to the xarray. v5.3 users
report that they stop seeing huge page mappings on an application +
filesystem layout that was seeing huge pages previously on v5.2"
* tag 'dax-fix-5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
fs/dax: Fix pmd vs pte conflict detection
Linus Torvalds [Sat, 26 Oct 2019 00:11:33 +0000 (20:11 -0400)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Nine changes, eight to drivers (qla2xxx, hpsa, lpfc, alua, ch,
53c710[x2], target) and one core change that tries to close a race
between sysfs delete and module removal"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: lpfc: remove left-over BUILD_NVME defines
scsi: core: try to get module before removing device
scsi: hpsa: add missing hunks in reset-patch
scsi: target: core: Do not overwrite CDB byte 1
scsi: ch: Make it possible to open a ch device multiple times again
scsi: fix kconfig dependency warning related to 53C700_LE_ON_BE
scsi: sni_53c710: fix compilation error
scsi: scsi_dh_alua: handle RTPG sense code correctly during state transitions
scsi: qla2xxx: fix a potential NULL pointer dereference
Christoph Hellwig [Thu, 17 Oct 2019 17:37:30 +0000 (19:37 +0200)]
riscv: cleanup do_trap_break
If we always compile the get_break_insn_length inline function we can
remove the ifdefs and let dead code elimination take care of the warn
branch that is now unreadable because the report_bug stub always
returns BUG_TRAP_TYPE_BUG.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Linus Torvalds [Fri, 25 Oct 2019 21:31:53 +0000 (17:31 -0400)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
Pull input fix from Dmitry Torokhov:
"A fix for st1232 driver to properly report coordinates for 2nd and
subsequent fingers when more than one is on the surface"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: st1232 - fix reporting multitouch coordinates
Mike Christie [Thu, 17 Oct 2019 21:27:34 +0000 (16:27 -0500)]
nbd: verify socket is supported during setup
nbd requires socket families to support the shutdown method so the nbd
recv workqueue can be woken up from its sock_recvmsg call. If the socket
does not support the callout we will leave recv works running or get hangs
later when the device or module is removed.
This adds a check during socket connection/reconnection to make sure the
socket being passed in supports the needed callout.
Reported-by: syzbot+24c12fa8d218ed26011a@syzkaller.appspotmail.com
Fixes: e9e006f5fcf2 ("nbd: fix max number of supported devs")
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Mark Brown [Wed, 16 Oct 2019 10:51:05 +0000 (11:51 +0100)]
ata: libahci_platform: Fix regulator_get_optional() misuse
This driver is using regulator_get_optional() to handle all the supplies
that it handles, and only ever enables and disables all supplies en masse
without ever doing any other configuration of the device to handle missing
power. These are clear signs that the API is being misused - it should only
be used for supplies that may be physically absent from the system and in
these cases the hardware usually needs different configuration if the
supply is missing. Instead use normal regualtor_get(), if the supply is
not described in DT then the framework will substitute a dummy regulator in
so no special handling is needed by the consumer driver.
In the case of the PHY regulator the handling in the driver is a hack to
deal with integrated PHYs; the supplies are only optional in the sense
that that there's some confusion in the code about where they're bound to.
From a code point of view they function exactly as normal supplies so can
be treated as such. It'd probably be better to model this by instantiating
a PHY object for integrated PHYs.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Josef Bacik [Mon, 21 Oct 2019 19:56:28 +0000 (15:56 -0400)]
nbd: handle racing with error'ed out commands
We hit the following warning in production
print_req_error: I/O error, dev nbd0, sector
7213934408 flags 80700
------------[ cut here ]------------
refcount_t: underflow; use-after-free.
WARNING: CPU: 25 PID: 32407 at lib/refcount.c:190 refcount_sub_and_test_checked+0x53/0x60
Workqueue: knbd-recv recv_work [nbd]
RIP: 0010:refcount_sub_and_test_checked+0x53/0x60
Call Trace:
blk_mq_free_request+0xb7/0xf0
blk_mq_complete_request+0x62/0xf0
recv_work+0x29/0xa1 [nbd]
process_one_work+0x1f5/0x3f0
worker_thread+0x2d/0x3d0
? rescuer_thread+0x340/0x340
kthread+0x111/0x130
? kthread_create_on_node+0x60/0x60
ret_from_fork+0x1f/0x30
---[ end trace
b079c3c67f98bb7c ]---
This was preceded by us timing out everything and shutting down the
sockets for the device. The problem is we had a request in the queue at
the same time, so we completed the request twice. This can actually
happen in a lot of cases, we fail to get a ref on our config, we only
have one connection and just error out the command, etc.
Fix this by checking cmd->status in nbd_read_stat. We only change this
under the cmd->lock, so we are safe to check this here and see if we've
already error'ed this command out, which would indicate that we've
completed it as well.
Reviewed-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Josef Bacik [Mon, 21 Oct 2019 19:56:27 +0000 (15:56 -0400)]
nbd: protect cmd->status with cmd->lock
We already do this for the most part, except in timeout and clear_req.
For the timeout case we take the lock after we grab a ref on the config,
but that isn't really necessary because we're safe to touch the cmd at
this point, so just move the order around.
For the clear_req cause this is initiated by the user, so again is safe.
Reviewed-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Linus Torvalds [Fri, 25 Oct 2019 20:11:55 +0000 (16:11 -0400)]
Merge tag 'modules-for-v5.4-rc5' of git://git./linux/kernel/git/jeyu/linux
Pull modules fixes from Jessica Yu:
- Revert __ksymtab_$namespace.$symbol naming scheme back to
__ksymtab_$symbol, as it was causing issues with depmod.
Instead, have modpost extract a symbol's namespace from __kstrtabns
and __ksymtab_strings.
- Fix `make nsdeps` for out of tree kernel builds (make O=...) caused
by unescaped '/'.
Use a different sed delimiter to avoid this problem.
* tag 'modules-for-v5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
scripts/nsdeps: use alternative sed delimiter
symbol namespaces: revert to previous __ksymtab name scheme
modpost: make updating the symbol namespace explicit
modpost: delegate updating namespaces to separate function
Linus Torvalds [Fri, 25 Oct 2019 20:00:47 +0000 (16:00 -0400)]
Merge tag 'armsoc-fixes' of git://git./linux/kernel/git/soc/soc
Pull ARM SoC fixes from Olof Johansson:
"A slightly larger set of fixes have accrued in the last two weeks.
Mostly a collection of the usual smaller fixes:
- Marvell Armada: USB phy setup issues on Turris Mox
- Broadcom: GPIO/pinmux DT mapping corrections for Stingray, MMC bus
width fix for RPi Zero W, GPIO LED removal for RPI CM3. Also some
maintainer updates.
- OMAP: Fixlets for display config, interrupt settings for wifi, some
clock/PM pieces. Also IOMMU regression fix and a ti-sysc
no-watchdog regression fix.
- i.MX: A few fixes around PM/settings, some devicetree fixlets and
catching up with config option changes in DRM
- Rockchip: RockRro64 misc DT fixups, Hugsun X99 USB-C, Kevin display
panel settings
... and some smaller fixes for Davinci (backlight, McBSP DMA),
Allwinner (phy regulators, PMU removal on A64, etc)"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (42 commits)
ARM: dts: stm32: relax qspi pins slew-rate for stm32mp157
MAINTAINERS: Update the Spreadtrum SoC maintainer
MAINTAINERS: Remove Gregory and Brian for ARCH_BRCMSTB
ARM: dts: bcm2837-rpi-cm3: Avoid leds-gpio probing issue
bus: ti-sysc: Fix watchdog quirk handling
ARM: OMAP2+: Add pdata for OMAP3 ISP IOMMU
ARM: OMAP2+: Plug in device_enable/idle ops for IOMMUs
ARM: davinci_all_defconfig: enable GPIO backlight
ARM: davinci: dm365: Fix McBSP dma_slave_map entry
ARM: dts: bcm2835-rpi-zero-w: Fix bus-width of sdhci
ARM: imx_v6_v7_defconfig: Enable CONFIG_DRM_MSM
arm64: dts: imx8mn: Use correct clock for usdhc's ipg clk
arm64: dts: imx8mm: Use correct clock for usdhc's ipg clk
arm64: dts: imx8mq: Use correct clock for usdhc's ipg clk
ARM: dts: imx7s: Correct GPT's ipg clock source
ARM: dts: vf610-zii-scu4-aib: Specify 'i2c-mux-idle-disconnect'
ARM: dts: imx6q-logicpd: Re-Enable SNVS power key
arm64: dts: lx2160a: Correct CPU core idle state name
mailmap: Add Simon Arlott (replacement for expired email address)
arm64: dts: rockchip: Fix override mode for rk3399-kevin panel
...
Linus Torvalds [Fri, 25 Oct 2019 19:52:05 +0000 (15:52 -0400)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"Bugfixes for ARM, PPC and x86, plus selftest improvements"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: nVMX: Don't leak L1 MMIO regions to L2
KVM: SVM: Fix potential wrong physical id in avic_handle_ldr_update
kvm: clear kvmclock MSR on reset
KVM: x86: fix bugon.cocci warnings
KVM: VMX: Remove specialized handling of unexpected exit-reasons
selftests: kvm: fix sync_regs_test with newer gccs
selftests: kvm: vmx_dirty_log_test: skip the test when VMX is not supported
selftests: kvm: consolidate VMX support checks
selftests: kvm: vmx_set_nested_state_test: don't check for VMX support twice
KVM: Don't shrink/grow vCPU halt_poll_ns if host side polling is disabled
selftests: kvm: synchronize .gitignore to Makefile
kvm: x86: Expose RDPID in KVM_GET_SUPPORTED_CPUID
KVM: arm64: pmu: Reset sample period on overflow handling
KVM: arm64: pmu: Set the CHAINED attribute before creating the in-kernel event
arm64: KVM: Handle PMCR_EL0.LC as RES1 on pure AArch64 systems
KVM: arm64: pmu: Fix cycle counter truncation
KVM: PPC: Book3S HV: XIVE: Ensure VP isn't already in use
Linus Torvalds [Fri, 25 Oct 2019 19:41:14 +0000 (15:41 -0400)]
Merge tag 'drm-fixes-2019-10-25' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Quiet week this week, which I suspect means some people just didn't
get around to sending me fixes pulls in time. This has 2 komeda and a
bunch of amdgpu fixes in it:
komeda:
- typo fixes
- flushing pipes fix
amdgpu:
- Fix suspend/resume issue related to multi-media engines
- Fix memory leak in user ptr code related to hmm conversion
- Fix possible VM faults when allocating page table memory
- Fix error handling in bo list ioctl"
* tag 'drm-fixes-2019-10-25' of git://anongit.freedesktop.org/drm/drm:
drm/komeda: Fix typos in komeda_splitter_validate
drm/komeda: Don't flush inactive pipes
drm/amdgpu/vce: fix allocation size in enc ring test
drm/amdgpu: fix error handling in amdgpu_bo_list_create
drm/amdgpu: fix potential VM faults
drm/amdgpu: user pages array memory leak fix
drm/amdgpu/vcn: fix allocation size in enc ring test
drm/amdgpu/uvd7: fix allocation size in enc ring test (v2)
drm/amdgpu/uvd6: fix allocation size in enc ring test (v2)
Linus Torvalds [Fri, 25 Oct 2019 19:25:51 +0000 (15:25 -0400)]
Merge tag 'mmc-v5.4-rc4' of git://git./linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"MMC host fixes:
- mxs: Fix flags passed to dmaengine_prep_slave_sg
- cqhci: Add a missing memory barrier
- sdhci-omap: Fix tuning procedure for temperatures < -20C"
* tag 'mmc-v5.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: mxs: fix flags passed to dmaengine_prep_slave_sg
mmc: cqhci: Commit descriptors before setting the doorbell
mmc: sdhci-omap: Fix Tuning procedure for temperatures < -20C
Jens Axboe [Fri, 25 Oct 2019 16:06:15 +0000 (10:06 -0600)]
io_uring: fix bad inflight accounting for SETUP_IOPOLL|SETUP_SQTHREAD
We currently assume that submissions from the sqthread are successful,
and if IO polling is enabled, we use that value for knowing how many
completions to look for. But if we overflowed the CQ ring or some
requests simply got errored and already completed, they won't be
available for polling.
For the case of IO polling and SQTHREAD usage, look at the pending
poll list. If it ever hits empty then we know that we don't have
anymore pollable requests inflight. For that case, simply reset
the inflight count to zero.
Reported-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Jens Axboe [Fri, 25 Oct 2019 16:04:25 +0000 (10:04 -0600)]
io_uring: used cached copies of sq->dropped and cq->overflow
We currently use the ring values directly, but that can lead to issues
if the application is malicious and changes these values on our behalf.
Created in-kernel cached versions of them, and just overwrite the user
side when we update them. This is similar to how we treat the sq/cq
ring tail/head updates.
Reported-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Patrice Chotard [Fri, 25 Oct 2019 13:01:22 +0000 (15:01 +0200)]
ARM: dts: stm32: relax qspi pins slew-rate for stm32mp157
Relax qspi pins slew-rate to minimize peak currents.
Fixes: 844030057339 ("ARM: dts: stm32: add flash nor support on stm32mp157c eval board")
Link: https://lore.kernel.org/r/20191025130122.11407-1-alexandre.torgue@st.com
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Pavel Begunkov [Fri, 25 Oct 2019 09:31:31 +0000 (12:31 +0300)]
io_uring: Fix race for sqes with userspace
io_ring_submit() finalises with
1. io_commit_sqring(), which releases sqes to the userspace
2. Then calls to io_queue_link_head(), accessing released head's sqe
Reorder them.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Pavel Begunkov [Fri, 25 Oct 2019 09:31:30 +0000 (12:31 +0300)]
io_uring: Fix broken links with offloading
io_sq_thread() processes sqes by 8 without considering links. As a
result, links will be randomely subdivided.
The easiest way to fix it is to call io_get_sqring() inside
io_submit_sqes() as do io_ring_submit().
Downsides:
1. This removes optimisation of not grabbing mm_struct for fixed files
2. It submitting all sqes in one go, without finer-grained sheduling
with cq processing.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Pavel Begunkov [Fri, 25 Oct 2019 09:31:29 +0000 (12:31 +0300)]
io_uring: Fix corrupted user_data
There is a bug, where failed linked requests are returned not with
specified @user_data, but with garbage from a kernel stack.
The reason is that io_fail_links() uses req->user_data, which is
uninitialised when called from io_queue_sqe() on fail path.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Juergen Gross [Fri, 25 Oct 2019 07:38:58 +0000 (09:38 +0200)]
xen: issue deprecation warning for 32-bit pv guest
Support for the kernel as Xen 32-bit PV guest will soon be removed.
Issue a warning when booted as such.
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Thomas Gleixner [Fri, 25 Oct 2019 12:25:15 +0000 (14:25 +0200)]
Merge tag 'irqchip-fixes-5.4-2' of git://git./linux/kernel/git/maz/arm-platforms into irq/urgent
Pull the second lot of irqchip updates for 5.4 from Marc Zyngier:
- Sifive PLIC: force driver to skip non-relevant contexts
- GICv4: Don't send VMOVP commands to ITSs that don't have
this vPE mapped
Alan Mikhak [Thu, 24 Oct 2019 16:11:43 +0000 (09:11 -0700)]
irqchip/sifive-plic: Skip contexts except supervisor in plic_init()
Modify plic_init() to skip .dts interrupt contexts other
than supervisor external interrupt.
The .dts entry for plic may specify multiple interrupt contexts.
For example, it may assign two entries IRQ_M_EXT and IRQ_S_EXT,
in that order, to the same interrupt controller. This patch
modifies plic_init() to skip the IRQ_M_EXT context since
IRQ_S_EXT is currently the only supported context.
If IRQ_M_EXT is not skipped, plic_init() will report "handler
already present for context" when it comes across the IRQ_S_EXT
context in the next iteration of its loop.
Without this patch, .dts would have to be edited to replace the
value of IRQ_M_EXT with -1 for it to be skipped.
Signed-off-by: Alan Mikhak <alan.mikhak@sifive.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Paul Walmsley <paul.walmsley@sifive.com> # arch/riscv
Link: https://lkml.kernel.org/r/1571933503-21504-1-git-send-email-alan.mikhak@sifive.com
Dave Airlie [Fri, 25 Oct 2019 04:48:53 +0000 (14:48 +1000)]
Merge tag 'drm-fixes-5.4-2019-10-23' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
drm-fixes-5.4-2019-10-23:
amdgpu:
- Fix suspend/resume issue related to multi-media engines
- Fix memory leak in user ptr code related to hmm conversion
- Fix possible VM faults when allocating page table memory
- Fix error handling in bo list ioctl
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191024031809.3155-1-alexander.deucher@amd.com
Dave Airlie [Fri, 25 Oct 2019 04:45:12 +0000 (14:45 +1000)]
Merge tag 'drm-misc-fixes-2019-10-23' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Two fixes for komeda, one for typos and one to prevent an hardware issue
when flushing inactive pipes
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191023112643.evpp6f23mpjwdsn4@gilmour
Dave Wysochanski [Wed, 23 Oct 2019 09:02:33 +0000 (05:02 -0400)]
cifs: Fix cifsInodeInfo lock_sem deadlock when reconnect occurs
There's a deadlock that is possible and can easily be seen with
a test where multiple readers open/read/close of the same file
and a disruption occurs causing reconnect. The deadlock is due
a reader thread inside cifs_strict_readv calling down_read and
obtaining lock_sem, and then after reconnect inside
cifs_reopen_file calling down_read a second time. If in
between the two down_read calls, a down_write comes from
another process, deadlock occurs.
CPU0 CPU1
---- ----
cifs_strict_readv()
down_read(&cifsi->lock_sem);
_cifsFileInfo_put
OR
cifs_new_fileinfo
down_write(&cifsi->lock_sem);
cifs_reopen_file()
down_read(&cifsi->lock_sem);
Fix the above by changing all down_write(lock_sem) calls to
down_write_trylock(lock_sem)/msleep() loop, which in turn
makes the second down_read call benign since it will never
block behind the writer while holding lock_sem.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Suggested-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed--by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Pavel Shilovsky [Wed, 23 Oct 2019 22:37:19 +0000 (15:37 -0700)]
CIFS: Fix use after free of file info structures
Currently the code assumes that if a file info entry belongs
to lists of open file handles of an inode and a tcon then
it has non-zero reference. The recent changes broke that
assumption when putting the last reference of the file info.
There may be a situation when a file is being deleted but
nothing prevents another thread to reference it again
and start using it. This happens because we do not hold
the inode list lock while checking the number of references
of the file info structure. Fix this by doing the proper
locking when doing the check.
Fixes: 487317c99477d ("cifs: add spinlock for the openFileList to cifsInodeInfo")
Fixes: cb248819d209d ("cifs: use cifsInodeInfo->open_file_lock while iterating to avoid a panic")
Cc: Stable <stable@vger.kernel.org>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Pavel Shilovsky [Tue, 22 Oct 2019 15:41:42 +0000 (08:41 -0700)]
CIFS: Fix retry mid list corruption on reconnects
When the client hits reconnect it iterates over the mid
pending queue marking entries for retry and moving them
to a temporary list to issue callbacks later without holding
GlobalMid_Lock. In the same time there is no guarantee that
mids can't be removed from the temporary list or even
freed completely by another thread. It may cause a temporary
list corruption:
[ 430.454897] list_del corruption. prev->next should be
ffff98d3a8f316c0, but was
2e885cb266355469
[ 430.464668] ------------[ cut here ]------------
[ 430.466569] kernel BUG at lib/list_debug.c:51!
[ 430.468476] invalid opcode: 0000 [#1] SMP PTI
[ 430.470286] CPU: 0 PID: 13267 Comm: cifsd Kdump: loaded Not tainted 5.4.0-rc3+ #19
[ 430.473472] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
[ 430.475872] RIP: 0010:__list_del_entry_valid.cold+0x31/0x55
...
[ 430.510426] Call Trace:
[ 430.511500] cifs_reconnect+0x25e/0x610 [cifs]
[ 430.513350] cifs_readv_from_socket+0x220/0x250 [cifs]
[ 430.515464] cifs_read_from_socket+0x4a/0x70 [cifs]
[ 430.517452] ? try_to_wake_up+0x212/0x650
[ 430.519122] ? cifs_small_buf_get+0x16/0x30 [cifs]
[ 430.521086] ? allocate_buffers+0x66/0x120 [cifs]
[ 430.523019] cifs_demultiplex_thread+0xdc/0xc30 [cifs]
[ 430.525116] kthread+0xfb/0x130
[ 430.526421] ? cifs_handle_standard+0x190/0x190 [cifs]
[ 430.528514] ? kthread_park+0x90/0x90
[ 430.530019] ret_from_fork+0x35/0x40
Fix this by obtaining extra references for mids being retried
and marking them as MID_DELETED which indicates that such a mid
has been dequeued from the pending list.
Also move mid cleanup logic from DeleteMidQEntry to
_cifs_mid_q_entry_release which is called when the last reference
to a particular mid is put. This allows to avoid any use-after-free
of response buffers.
The patch needs to be backported to stable kernels. A stable tag
is not mentioned below because the patch doesn't apply cleanly
to any actively maintained stable kernel.
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-and-tested-by: David Wysochanski <dwysocha@redhat.com>
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Linus Torvalds [Thu, 24 Oct 2019 22:29:40 +0000 (18:29 -0400)]
Merge tag 'devicetree-fixes-for-5.4-2' of git://git./linux/kernel/git/robh/linux
Pull Devicetree fixes from Rob Herring:
"A couple more DT fixes for 5.4: fix a ref count, memory leak, and
Risc-V cpu schema warnings"
* tag 'devicetree-fixes-for-5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: reserved_mem: add missing of_node_put() for proper ref-counting
of: unittest: fix memory leak in unittest_data_add
dt-bindings: riscv: Fix CPU schema errors
Linus Torvalds [Thu, 24 Oct 2019 19:49:32 +0000 (15:49 -0400)]
Merge tag 'acpi-5.4-rc5' of git://git./linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Fix locking issue in the error code path of a function that belongs to
the sysfs interface exposed by the ACPI NFIT handling code (Dan
Carpenter)"
* tag 'acpi-5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: NFIT: Fix unlock on error in scrub_show()
Linus Torvalds [Thu, 24 Oct 2019 19:36:11 +0000 (15:36 -0400)]
Merge tag 'pm-5.4-rc5' of git://git./linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix problems related to frequency limits management in cpufreq
that were introduced during the 5.3 cycle (when PM QoS had started to
be used for that), fix a few issues in the OPP (operating performance
points) library code and fix up the recently added haltpoll cpuidle
driver.
The cpufreq changes are somewhat bigger that I would like them to be
at this stage of the cycle, but the problems fixed by them include
crashes on boot and shutdown in some cases (among other things) and in
my view it is better to address the root of the issue right away.
Specifics:
- Using device PM QoS of CPU devices for managing frequency limits in
cpufreq does not work, so introduce frequency QoS (based on the
original low-level PM QoS) for this purpose, switch cpufreq and
related code over to using it and fix a race involving deferred
updates of frequency limits on top of that (Rafael Wysocki, Sudeep
Holla).
- Avoid calling regulator_enable()/disable() from the OPP framework
to avoid side-effects on boot-enabled regulators that may change
their initial voltage due to performing initial voltage balancing
without all restrictions from the consumers (Marek Szyprowski).
- Avoid a kref management issue in the OPP library code and drop an
incorrectly added lockdep_assert_held() from it (Viresh Kumar).
- Make the recently added haltpoll cpuidle driver take the 'idle='
override into account as appropriate (Zhenzhong Duan)"
* tag 'pm-5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
opp: Reinitialize the list_kref before adding the static OPPs again
cpufreq: Cancel policy update work scheduled before freeing
cpuidle: haltpoll: Take 'idle=' override into account
opp: core: Revert "add regulators enable and disable"
PM: QoS: Drop frequency QoS types from device PM QoS
cpufreq: Use per-policy frequency QoS
PM: QoS: Introduce frequency QoS
opp: of: drop incorrect lockdep_assert_held()
Linus Torvalds [Thu, 24 Oct 2019 19:31:55 +0000 (15:31 -0400)]
Merge tag 'gfs2-v5.4-rc4.fixes' of git://git./linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 fix from Andreas Gruenbacher:
"Fix a memory leak introduced in -rc1"
* tag 'gfs2-v5.4-rc4.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: Fix memory leak when gfs2meta's fs_context is freed
Alain Volmat [Tue, 15 Oct 2019 13:11:58 +0000 (15:11 +0200)]
i2c: stm32f7: remove warning when compiling with W=1
Remove the following warning:
drivers/i2c/busses/i2c-stm32f7.c:315:
warning: cannot understand function prototype:
'struct stm32f7_i2c_spec i2c_specs[] =
Replace a comment starting with /** by simply /* to avoid having
it interpreted as a kernel-doc comment.
Fixes: aeb068c57214 ("i2c: i2c-stm32f7: add driver")
Signed-off-by: Alain Volmat <alain.volmat@st.com>
Reviewed-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Fabrice Gasnier [Tue, 1 Oct 2019 08:51:09 +0000 (10:51 +0200)]
i2c: stm32f7: fix a race in slave mode with arbitration loss irq
When in slave mode, an arbitration loss (ARLO) may be detected before the
slave had a chance to detect the stop condition (STOPF in ISR).
This is seen when two master + slave adapters switch their roles. It
provokes the i2c bus to be stuck, busy as SCL line is stretched.
- the I2C_SLAVE_STOP event is never generated due to STOPF flag is set but
don't generate an irq (race with ARLO irq, STOPIE is masked). STOPF flag
remains set until next master xfer (e.g. when STOPIE irq get unmasked).
In this case, completion is generated too early: immediately upon new
transfer request (then it doesn't send all data).
- Some data get stuck in TXDR register. As a consequence, the controller
stretches the SCL line: the bus gets busy until a future master transfer
triggers the bus busy / recovery mechanism (this can take time... and
may never happen at all)
So choice is to let the STOPF being detected by the slave isr handler,
to properly handle this stop condition. E.g. don't mask IRQs in error
handler, when the slave is running.
Fixes: 60d609f30de2 ("i2c: i2c-stm32f7: Add slave support")
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Fabrice Gasnier [Mon, 30 Sep 2019 15:28:01 +0000 (17:28 +0200)]
i2c: stm32f7: fix first byte to send in slave mode
The slave-interface documentation [1] states "the bus driver should
transmit the first byte" upon I2C_SLAVE_READ_REQUESTED slave event:
- 'val': backend returns first byte to be sent
The driver currently ignores the 1st byte to send on this event.
[1] https://www.kernel.org/doc/Documentation/i2c/slave-interface
Fixes: 60d609f30de2 ("i2c: i2c-stm32f7: Add slave support")
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Fabien Parent [Fri, 18 Oct 2019 17:32:13 +0000 (19:32 +0200)]
i2c: mt65xx: fix NULL ptr dereference
Since commit
abf4923e97c3 ("i2c: mediatek: disable zero-length transfers
for mt8183"), there is a NULL pointer dereference for all the SoCs
that don't have any quirk. mtk_i2c_functionality is not checking that
the quirks pointer is not NULL before starting to use it.
This commit add a call to i2c_check_quirks which will check whether
the quirks pointer is set, and if so will check if the IP has the
NO_ZERO_LEN quirk.
Fixes: abf4923e97c3 ("i2c: mediatek: disable zero-length transfers for mt8183")
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Reviewed-by: Cengiz Can <cengiz@kernel.wtf>
Reviewed-by: Hsin-Yi Wang <hsinyi@chromium.org>
Tested-by: Ulrich Hecht <uli@fpond.eu>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Zenghui Yu [Wed, 23 Oct 2019 03:46:26 +0000 (03:46 +0000)]
irqchip/gic-v3-its: Use the exact ITSList for VMOVP
On a system without Single VMOVP support (say GITS_TYPER.VMOVP == 0),
we will map vPEs only on ITSs that will actually control interrupts
for the given VM. And when moving a vPE, the VMOVP command will be
issued only for those ITSs.
But when issuing VMOVPs we seemed fail to present the exact ITSList
to ITSs who are actually included in the synchronization operation.
The its_list_map we're currently using includes all ITSs in the system,
even though some of them don't have the corresponding vPE mapping at all.
Introduce get_its_list() to get the per-VM its_list_map, to indicate
which ITSs have vPE mappings for the given VM, and use this map as
the expected ITSList when building VMOVP. This is hopefully a performance
gain not to do some synchronization with those unsuspecting ITSs.
And initialize the whole command descriptor to zero at beginning, since
the seq_num and its_list should be RES0 when GITS_TYPER.VMOVP == 1.
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1571802386-2680-1-git-send-email-yuzenghui@huawei.com
Andrew Price [Fri, 4 Oct 2019 16:51:58 +0000 (11:51 -0500)]
gfs2: Fix memory leak when gfs2meta's fs_context is freed
gfs2 and gfs2meta share an ->init_fs_context function which allocates an
args structure stored in fc->fs_private. gfs2 registers a ->free
function to free this memory when the fs_context is cleaned up, but
there was not one registered for gfs2meta, causing a leak.
Register a ->free function for gfs2meta. The existing gfs2_fc_free
function does what we need.
Reported-by: syzbot+c2fdfd2b783754878fb6@syzkaller.appspotmail.com
Fixes: 1f52aa08d12f ("gfs2: Convert gfs2 to fs_context")
Signed-off-by: Andrew Price <anprice@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Rafael J. Wysocki [Thu, 24 Oct 2019 14:00:43 +0000 (16:00 +0200)]
Merge branches 'pm-cpuidle' and 'pm-opp'
* pm-cpuidle:
cpuidle: haltpoll: Take 'idle=' override into account
* pm-opp:
opp: Reinitialize the list_kref before adding the static OPPs again
opp: core: Revert "add regulators enable and disable"
opp: of: drop incorrect lockdep_assert_held()
Linus Torvalds [Thu, 24 Oct 2019 10:13:45 +0000 (06:13 -0400)]
Merge tag 'mfd-fixes-5.4' of git://git./linux/kernel/git/lee/mfd
Pull MFD fix from Lee Jones:
"Fix broken support for BananaPi-r2"
* tag 'mfd-fixes-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
mfd: mt6397: Fix probe after changing mt6397-core
Linus Torvalds [Thu, 24 Oct 2019 10:09:42 +0000 (06:09 -0400)]
Merge tag 'sound-5.4-rc5' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"This is a usual small bump in the middle, we've got a set of ASoC
fixes in this week as shown in diffstat.
The only change in the core stuff is about (somewhat minor) PCM
debugfs error handling. The major changes are rather for Intel SOF and
topology coverage, as well as other platform (rockchip, samsung, stm)
and codec fixes.
As non-ASoC changes, a couple of new HD-audio chip fixes and a typo
correction of USB-audio driver validation code are found"
* tag 'sound-5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (29 commits)
ALSA: hda: Add Tigerlake/Jasperlake PCI ID
ALSA: usb-audio: Fix copy&paste error in the validator
ALSA: hda/realtek - Add support for ALC711
ASoC: SOF: control: return true when kcontrol values change
ASoC: stm32: sai: fix sysclk management on shutdown
ASoC: Intel: sof-rt5682: add a check for devm_clk_get
ASoC: rsnd: Reinitialize bit clock inversion flag for every format setting
ASoC: simple_card_utils.h: Fix potential multiple redefinition error
ASoC: msm8916-wcd-digital: add missing MIX2 path for RX1/2
ASoC: core: Fix pcm code debugfs error
ASoc: rockchip: i2s: Fix RPM imbalance
ASoC: wm_adsp: Don't generate kcontrols without READ flags
ASoC: intel: bytcr_rt5651: add null check to support_button_press
ASoC: intel: sof_rt5682: add remove function to disable jack
ASoC: rt5682: add NULL handler to set_jack function
ASoC: intel: sof_rt5682: use separate route map for dmic
ASoC: SOF: Intel: hda: Disable DMI L1 entry during capture
ASoC: SOF: Intel: initialise and verify FW crash dump data.
ASoC: SOF: Intel: hda: fix warnings during FW load
ASoC: SOF: pcm: harden PCM STOP sequence
...
Frank Wunderlich [Thu, 3 Oct 2019 18:53:23 +0000 (20:53 +0200)]
mfd: mt6397: Fix probe after changing mt6397-core
Part 3 from this series [1] was not merged due to wrong splitting
and breaks mt6323 pmic on bananapi-r2
dmesg prints this line and at least switch is not initialized on bananapi-r2
mt6397
1000d000.pwrap:mt6323: unsupported chip: 0x0
this patch contains only the probe-changes and chip_data structs
from original part 3 by Hsin-Hsiung Wang
[1] https://patchwork.kernel.org/project/linux-mediatek/list/?series=164155
Fixes: a4872e80ce7d ("mfd: mt6397: Extract IRQ related code from core driver")
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Paul Burton [Fri, 18 Oct 2019 22:38:48 +0000 (15:38 -0700)]
MIPS: tlbex: Fix build_restore_pagemask KScratch restore
build_restore_pagemask() will restore the value of register $1/$at when
its restore_scratch argument is non-zero, and aims to do so by filling a
branch delay slot. Commit
0b24cae4d535 ("MIPS: Add missing EHB in mtc0
-> mfc0 sequence.") added an EHB instruction (Execution Hazard Barrier)
prior to restoring $1 from a KScratch register, in order to resolve a
hazard that can result in stale values of the KScratch register being
observed. In particular, P-class CPUs from MIPS with out of order
execution pipelines such as the P5600 & P6600 are affected.
Unfortunately this EHB instruction was inserted in the branch delay slot
causing the MFC0 instruction which performs the restoration to no longer
execute along with the branch. The result is that the $1 register isn't
actually restored, ie. the TLB refill exception handler clobbers it -
which is exactly the problem the EHB is meant to avoid for the P-class
CPUs.
Similarly build_get_pgd_vmalloc() will restore the value of $1/$at when
its mode argument equals refill_scratch, and suffers from the same
problem.
Fix this by in both cases moving the EHB earlier in the emitted code.
There's no reason it needs to immediately precede the MFC0 - it simply
needs to be between the MTC0 & MFC0.
This bug only affects Cavium Octeon systems which use
build_fast_tlb_refill_handler().
Signed-off-by: Paul Burton <paulburton@kernel.org>
Fixes: 0b24cae4d535 ("MIPS: Add missing EHB in mtc0 -> mfc0 sequence.")
Cc: Dmitry Korotin <dkorotin@wavecomp.com>
Cc: stable@vger.kernel.org # v3.15+
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
zhangyi (F) [Wed, 23 Oct 2019 07:10:09 +0000 (15:10 +0800)]
io_uring: correct timeout req sequence when inserting a new entry
The sequence number of the timeout req (req->sequence) indicate the
expected completion request. Because of each timeout req consume a
sequence number, so the sequence of each timeout req on the timeout
list shouldn't be the same. But now, we may get the same number (also
incorrect) if we insert a new entry before the last one, such as submit
such two timeout reqs on a new ring instance below.
req->sequence
req_1 (count = 2): 2
req_2 (count = 1): 2
Then, if we submit a nop req, req_2 will still timeout even the nop req
finished. This patch fix this problem by adjust the sequence number of
each reordered reqs when inserting a new entry.
Signed-off-by: zhangyi (F) <yi.zhang@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
zhangyi (F) [Wed, 23 Oct 2019 07:10:08 +0000 (15:10 +0800)]
io_uring : correct timeout req sequence when waiting timeout
The sequence number of reqs on the timeout_list before the timeout req
should be adjusted in io_timeout_fn(), because the current timeout req
will consumes a slot in the cq_ring and cq_tail pointer will be
increased, otherwise other timeout reqs may return in advance without
waiting for enough wait_nr.
Signed-off-by: zhangyi (F) <yi.zhang@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Jens Axboe [Tue, 22 Oct 2019 19:14:37 +0000 (13:14 -0600)]
io_uring: revert "io_uring: optimize submit_and_wait API"
There are cases where it isn't always safe to block for submission,
even if the caller asked to wait for events as well. Revert the
previous optimization of doing that.
This reverts two commits:
bf7ec93c644cb
c576666863b78
Fixes: c576666863b78 ("io_uring: optimize submit_and_wait API")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Jonas Gorski [Tue, 22 Oct 2019 19:11:00 +0000 (21:11 +0200)]
MIPS: bmips: mark exception vectors as char arrays
The vectors span more than one byte, so mark them as arrays.
Fixes the following build error when building when using GCC 8.3:
In file included from ./include/linux/string.h:19,
from ./include/linux/bitmap.h:9,
from ./include/linux/cpumask.h:12,
from ./arch/mips/include/asm/processor.h:15,
from ./arch/mips/include/asm/thread_info.h:16,
from ./include/linux/thread_info.h:38,
from ./include/asm-generic/preempt.h:5,
from ./arch/mips/include/generated/asm/preempt.h:1,
from ./include/linux/preempt.h:81,
from ./include/linux/spinlock.h:51,
from ./include/linux/mmzone.h:8,
from ./include/linux/bootmem.h:8,
from arch/mips/bcm63xx/prom.c:10:
arch/mips/bcm63xx/prom.c: In function 'prom_init':
./arch/mips/include/asm/string.h:162:11: error: '__builtin_memcpy' forming offset [2, 32] is out of the bounds [0, 1] of object 'bmips_smp_movevec' with type 'char' [-Werror=array-bounds]
__ret = __builtin_memcpy((dst), (src), __len); \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/mips/bcm63xx/prom.c:97:3: note: in expansion of macro 'memcpy'
memcpy((void *)0xa0000200, &bmips_smp_movevec, 0x20);
^~~~~~
In file included from arch/mips/bcm63xx/prom.c:14:
./arch/mips/include/asm/bmips.h:80:13: note: 'bmips_smp_movevec' declared here
extern char bmips_smp_movevec;
Fixes: 18a1eef92dcd ("MIPS: BMIPS: Introduce bmips.h")
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Olof Johansson [Thu, 24 Oct 2019 03:01:24 +0000 (20:01 -0700)]
Merge tag 'arm-soc/for-5.5/maintainers' of https://github.com/Broadcom/stblinux into arm/fixes
This pull request contains MAINTAINERS file updates for Broadcom SoCs
for the 5.5 kernel, please pull the following:
- Simon adds a .mailmap alias for his old email
- Stefan updates the existing BCM2835 with BCM2711 which is the chip
name for the Raspberry Pi 4
- Florian removes Gregory and Brian from the MAINTAINERS file for
BRCMSTB SoCs
* tag 'arm-soc/for-5.5/maintainers' of https://github.com/Broadcom/stblinux:
MAINTAINERS: Remove Gregory and Brian for ARCH_BRCMSTB
mailmap: Add Simon Arlott (replacement for expired email address)
MAINTAINERS: Add BCM2711 to BCM2835 ARCH
Link: https://lore.kernel.org/r/20191023212814.30622-3-f.fainelli@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
Baolin Wang [Thu, 24 Oct 2019 02:05:10 +0000 (10:05 +0800)]
MAINTAINERS: Update the Spreadtrum SoC maintainer
Change my email address, and add more Spreadtrum SC27xx series PMIC
drivers to maintain.
Link: https://lore.kernel.org/r/a48483d13243450ecf3b777d49e741b6367f2c6b.1571881956.git.baolin.wang@linaro.org
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Christoph Hellwig [Thu, 17 Oct 2019 17:37:29 +0000 (19:37 +0200)]
riscv: cleanup <asm/bug.h>
Remove various not required ifdefs and externs.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Kefeng Wang [Wed, 23 Oct 2019 03:23:02 +0000 (11:23 +0800)]
riscv: Fix undefined reference to vmemmap_populate_basepages
Using CONFIG_SPARSEMEM_VMEMMAP instead of CONFIG_SPARSEMEM to fix
following build issue.
riscv64-linux-ld: arch/riscv/mm/init.o: in function 'vmemmap_populate':
init.c:(.meminit.text+0x8): undefined reference to 'vmemmap_populate_basepages'
Cc: Logan Gunthorpe <logang@deltatee.com>
Fixes: d95f1a542c3d ("RISC-V: Implement sparsemem")
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Kefeng Wang [Wed, 23 Oct 2019 03:23:01 +0000 (11:23 +0800)]
riscv: Fix implicit declaration of 'page_to_section'
With CONFIG_SPARSEMEM and !CONFIG_SPARSEMEM_VMEMMAP,
arch/riscv/include/asm/pgtable.h: In function ‘mk_pte’:
include/asm-generic/memory_model.h:64:14: error: implicit declaration of function ‘page_to_section’; did you mean ‘present_section’? [-Werror=implicit-function-declaration]
int __sec = page_to_section(__pg); \
^~~~~~~~~~~~~~~
Fixed by changing mk_pte() from inline function to macro.
Cc: Logan Gunthorpe <logang@deltatee.com>
Fixes: d95f1a542c3d ("RISC-V: Implement sparsemem")
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
[paul.walmsley@sifive.com: fixed checkpatch errors]
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>