linux-2.6-microblaze.git
3 years agodrm/amd/pm: setup APU dpm clock table in SMU HW initialization
Evan Quan [Wed, 30 Sep 2020 04:07:56 +0000 (12:07 +0800)]
drm/amd/pm: setup APU dpm clock table in SMU HW initialization

As the dpm clock table is needed during DC HW initialization.
And that (DC HW initialization) comes before smu_late_init()
where current APU dpm clock table setup is performed. So, NULL
pointer dereference will be triggered. By moving APU dpm clock
table setup to smu_hw_init(), this can be avoided.

Fixes: 02cf91c113ea ("drm/amd/powerplay: postpone operations not required for hw setup to late_init")
Acked-by: Nirmoy Das <nirmoy.das@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reported-by: Dirk Gouders <dirk@gouders.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: remove duplicate call to rn_vbios_smu_get_smu_version()
Dirk Gouders [Sun, 27 Sep 2020 09:39:45 +0000 (11:39 +0200)]
drm/amd/display: remove duplicate call to rn_vbios_smu_get_smu_version()

Commit 78fe9f63947a2b ("drm/amd/display: Remove DISPCLK Limit Floor for Certain SMU Versions")
added a call to rn_vbios_smu_get_smu_version() to set clk_mgr->smu_ver.
That field is initialized prior to the if-statement, already.

Fixes: 78fe9f63947a2b (drm/amd/display: Remove DISPCLK Limit Floor for Certain SMU Versions)
Signed-off-by: Dirk Gouders <dirk@gouders.net>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Sung Lee <sung.lee@amd.com>
Cc: Yongqiang Sun <yongqiang.sun@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdgpu/swsmu/smu12: fix force clock handling for mclk
Alex Deucher [Mon, 28 Sep 2020 18:16:25 +0000 (14:16 -0400)]
drm/amdgpu/swsmu/smu12: fix force clock handling for mclk

The state array is in the reverse order compared to other asics
(high to low rather than low to high).

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1313
Reviewed-by: Prike Liang <Prike.Liang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdgpu: restore proper ref count in amdgpu_display_crtc_set_config
Jean Delvare [Mon, 28 Sep 2020 09:10:37 +0000 (11:10 +0200)]
drm/amdgpu: restore proper ref count in amdgpu_display_crtc_set_config

A recent attempt to fix a ref count leak in
amdgpu_display_crtc_set_config() turned out to be doing too much and
"fixed" an intended decrease as if it were a leak. Undo that part to
restore the proper balance. This is the very nature of this function
to increase or decrease the power reference count depending on the
situation.

Consequences of this bug is that the power reference would
eventually get down to 0 while the display was still in use,
resulting in that display switching off unexpectedly.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: e008fa6fb415 ("drm/amdgpu: fix ref count leak in amdgpu_display_crtc_set_config")
Cc: stable@vger.kernel.org
Cc: Navid Emamdoost <navid.emamdoost@gmail.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdgpu/display: fix CFLAGS setup for DCN30
Alex Deucher [Tue, 22 Sep 2020 15:34:16 +0000 (11:34 -0400)]
drm/amdgpu/display: fix CFLAGS setup for DCN30

Properly handle clang and older versions of gcc.

Fixes: e77165bf7b02a3 ("drm/amd/display: Add DCN3 blocks to Makefile")
Acked-by: Nirmoy Das <nirmoy.das@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: fix return value check for hdcp_work
Flora Cui [Wed, 23 Sep 2020 06:42:59 +0000 (14:42 +0800)]
drm/amd/display: fix return value check for hdcp_work

max_caps might be 0, thus hdcp_work might be ZERO_SIZE_PTR

Signed-off-by: Flora Cui <flora.cui@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdgpu: remove gpu_info fw support for sienna_cichlid etc.
Jiansong Chen [Wed, 23 Sep 2020 03:58:23 +0000 (11:58 +0800)]
drm/amdgpu: remove gpu_info fw support for sienna_cichlid etc.

Remove gpu_info fw support for sienna_cichlid etc., since the
information can be retrieved from discovery binary.

Signed-off-by: Jiansong Chen <Jiansong.Chen@amd.com>
Reviewed-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/pm: Removed fixed clock in auto mode DPM
Sudheesh Mavila [Tue, 15 Sep 2020 07:18:20 +0000 (12:48 +0530)]
drm/amd/pm: Removed fixed clock in auto mode DPM

SMU10_UMD_PSTATE_PEAK_FCLK value should not be used to set the DPM.

Suggested-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Sudheesh Mavila <sudheesh.mavila@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdgpu: remove experimental flag from navi12
Alex Deucher [Tue, 15 Sep 2020 17:36:20 +0000 (13:36 -0400)]
drm/amdgpu: remove experimental flag from navi12

Navi12 has worked fine for a while now.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdgpu: add device ID for sienna_cichlid (v2)
Likun Gao [Thu, 16 Jan 2020 02:45:38 +0000 (10:45 +0800)]
drm/amdgpu: add device ID for sienna_cichlid (v2)

Add device ID for sienna_cichlid.

v2: squash in additional device ids.

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdgpu: use the AV1 defines for VCN 3.0
Alex Deucher [Fri, 1 May 2020 20:46:11 +0000 (16:46 -0400)]
drm/amdgpu: use the AV1 defines for VCN 3.0

Switch from magic numbers to defines for AV1 clockgating.

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdgpu: add VCN 3.0 AV1 registers
Alex Deucher [Fri, 1 May 2020 20:45:09 +0000 (16:45 -0400)]
drm/amdgpu: add VCN 3.0 AV1 registers

This adds the AV1 registers.

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdgpu: add the GC 10.3 VRS registers
Alex Deucher [Fri, 1 May 2020 20:42:56 +0000 (16:42 -0400)]
drm/amdgpu: add the GC 10.3 VRS registers

Add the VRS registers.

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdgpu: prevent double kfree ttm->sg
Philip Yang [Tue, 15 Sep 2020 21:07:35 +0000 (17:07 -0400)]
drm/amdgpu: prevent double kfree ttm->sg

Set ttm->sg to NULL after kfree, to avoid memory corruption backtrace:

[  420.932812] kernel BUG at
/build/linux-do9eLF/linux-4.15.0/mm/slub.c:295!
[  420.934182] invalid opcode: 0000 [#1] SMP NOPTI
[  420.935445] Modules linked in: xt_conntrack ipt_MASQUERADE
[  420.951332] Hardware name: Dell Inc. PowerEdge R7525/0PYVT1, BIOS
1.5.4 07/09/2020
[  420.952887] RIP: 0010:__slab_free+0x180/0x2d0
[  420.954419] RSP: 0018:ffffbe426291fa60 EFLAGS: 00010246
[  420.955963] RAX: ffff9e29263e9c30 RBX: ffff9e29263e9c30 RCX:
000000018100004b
[  420.957512] RDX: ffff9e29263e9c30 RSI: fffff3d33e98fa40 RDI:
ffff9e297e407a80
[  420.959055] RBP: ffffbe426291fb00 R08: 0000000000000001 R09:
ffffffffc0d39ade
[  420.960587] R10: ffffbe426291fb20 R11: ffff9e49ffdd4000 R12:
ffff9e297e407a80
[  420.962105] R13: fffff3d33e98fa40 R14: ffff9e29263e9c30 R15:
ffff9e2954464fd8
[  420.963611] FS:  00007fa2ea097780(0000) GS:ffff9e297e840000(0000)
knlGS:0000000000000000
[  420.965144] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  420.966663] CR2: 00007f16bfffefb8 CR3: 0000001ff0c62000 CR4:
0000000000340ee0
[  420.968193] Call Trace:
[  420.969703]  ? __page_cache_release+0x3c/0x220
[  420.971294]  ? amdgpu_ttm_tt_unpopulate+0x5e/0x80 [amdgpu]
[  420.972789]  kfree+0x168/0x180
[  420.974353]  ? amdgpu_ttm_tt_set_user_pages+0x64/0xc0 [amdgpu]
[  420.975850]  ? kfree+0x168/0x180
[  420.977403]  amdgpu_ttm_tt_unpopulate+0x5e/0x80 [amdgpu]
[  420.978888]  ttm_tt_unpopulate.part.10+0x53/0x60 [amdttm]
[  420.980357]  ttm_tt_destroy.part.11+0x4f/0x60 [amdttm]
[  420.981814]  ttm_tt_destroy+0x13/0x20 [amdttm]
[  420.983273]  ttm_bo_cleanup_memtype_use+0x36/0x80 [amdttm]
[  420.984725]  ttm_bo_release+0x1c9/0x360 [amdttm]
[  420.986167]  amdttm_bo_put+0x24/0x30 [amdttm]
[  420.987663]  amdgpu_bo_unref+0x1e/0x30 [amdgpu]
[  420.989165]  amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu+0x9ca/0xb10
[amdgpu]
[  420.990666]  kfd_ioctl_alloc_memory_of_gpu+0xef/0x2c0 [amdgpu]

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agoMerge tag 'mediatek-drm-fixes-5.9' of https://git.kernel.org/pub/scm/linux/kernel...
Dave Airlie [Thu, 17 Sep 2020 22:51:58 +0000 (08:51 +1000)]
Merge tag 'mediatek-drm-fixes-5.9' of https://git./linux/kernel/git/chunkuang.hu/linux into drm-fixes

Mediatek DRM Fixes for Linux 5.9

1. Fix scrolling of panel
2. Remove duplicated include
3. Use CPU when fail to get cmdq event
4. Add missing put_device() call

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200916231724.30571-1-chunkuang.hu@kernel.org
3 years agoMerge tag 'drm-intel-fixes-2020-09-17' of ssh://git.freedesktop.org/git/drm/drm-intel...
Dave Airlie [Thu, 17 Sep 2020 22:37:31 +0000 (08:37 +1000)]
Merge tag 'drm-intel-fixes-2020-09-17' of ssh://git.freedesktop.org/git/drm/drm-intel into drm-fixes

drm/i915 fixes for v5.9-rc6:
- Avoid exposing a partially constructed context
- Use RCU instead of mutex for context termination list iteration
- Avoid data race reported by KCSAN
- Filter wake_flags passed to default_wake_function

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87y2l8vlj3.fsf@intel.com
3 years agoMerge tag 'amd-drm-fixes-5.9-2020-09-17' of git://people.freedesktop.org/~agd5f/linux...
Dave Airlie [Thu, 17 Sep 2020 22:06:23 +0000 (08:06 +1000)]
Merge tag 'amd-drm-fixes-5.9-2020-09-17' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

amd-drm-fixes-5.9-2020-09-17:

amdgpu:
- Sienna Cichlid fixes
- Navy Flounder fixes
- DC fixes

amdkfd:
- Fix a GPU reset crash
- Fix a memory leak

radeon:
- Revert a PLL fix that broke other boards

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200917043818.3717-1-alexander.deucher@amd.com
3 years agodrm/amd/display: Don't log hdcp module warnings in dmesg
Bhawanpreet Lakha [Tue, 15 Sep 2020 21:26:29 +0000 (17:26 -0400)]
drm/amd/display: Don't log hdcp module warnings in dmesg

[Why]
DTM topology updates happens by default now. This results in DTM
warnings when hdcp is not even being enabled. This spams the dmesg
and doesn't effect normal display functionality so it is better to log it
using DRM_DEBUG_KMS()

[How]
Change the DRM_WARN() to DRM_DEBUG_KMS()

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdgpu: declare ta firmware for navy_flounder
Jiansong Chen [Wed, 16 Sep 2020 11:17:20 +0000 (19:17 +0800)]
drm/amdgpu: declare ta firmware for navy_flounder

The firmware provided via MODULE_FIRMWARE appears in the
module information. External tools(eg. dracut) may use the
list of fw files to include them as appropriate in an initramfs,
thus missing declaration will lead to request firmware failure
in boot time.

Signed-off-by: Jiansong Chen <Jiansong.Chen@amd.com>
Reviewed-by: Tianci Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/mediatek: Add missing put_device() call in mtk_hdmi_dt_parse_pdata()
Yu Kuai [Fri, 11 Sep 2020 11:21:51 +0000 (19:21 +0800)]
drm/mediatek: Add missing put_device() call in mtk_hdmi_dt_parse_pdata()

if of_find_device_by_node() succeed, mtk_drm_kms_init() doesn't have
a corresponding put_device(). Thus add jump target to fix the exception
handling for this function implementation.

Fixes: 8f83f26891e1 ("drm/mediatek: Add HDMI support")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
3 years agodrm/mediatek: Add missing put_device() call in mtk_drm_kms_init()
Yu Kuai [Fri, 11 Sep 2020 11:21:19 +0000 (19:21 +0800)]
drm/mediatek: Add missing put_device() call in mtk_drm_kms_init()

if of_find_device_by_node() succeed, mtk_drm_kms_init() doesn't have
a corresponding put_device(). Thus add jump target to fix the exception
handling for this function implementation.

Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
3 years agodrm/mediatek: Add exception handing in mtk_drm_probe() if component init fail
Yu Kuai [Wed, 9 Sep 2020 08:49:42 +0000 (16:49 +0800)]
drm/mediatek: Add exception handing in mtk_drm_probe() if component init fail

mtk_ddp_comp_init() is called in a loop in mtk_drm_probe(), if it
fail, previous successive init component is not proccessed.

Thus uninitialize valid component and put their device if component
init failed.

Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
3 years agodrm/mediatek: Add missing put_device() call in mtk_ddp_comp_init()
Yu Kuai [Sat, 5 Sep 2020 08:30:58 +0000 (16:30 +0800)]
drm/mediatek: Add missing put_device() call in mtk_ddp_comp_init()

if of_find_device_by_node() succeed, mtk_ddp_comp_init() doesn't have
a corresponding put_device(). Thus add put_device() to fix the exception
handling for this function implementation.

Fixes: d0afe37f5209 ("drm/mediatek: support CMDQ interface in ddp component")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
3 years agodrm/mediatek: Use CPU when fail to get cmdq event
Chun-Kuang Hu [Mon, 31 Aug 2020 23:39:52 +0000 (07:39 +0800)]
drm/mediatek: Use CPU when fail to get cmdq event

Even though cmdq client is created successfully, without the cmdq event,
cmdq could not work correctly, so use CPU when fail to get cmdq event.

Fixes: 60fa8c13ab1a ("drm/mediatek: Move gce event property to mutex device node")
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
3 years agodrm/mediatek: Remove duplicated include
Wang Hai [Wed, 19 Aug 2020 02:58:29 +0000 (10:58 +0800)]
drm/mediatek: Remove duplicated include

Remove mtk_drm_ddp.h which is included more than once

Fixes: 9aef5867c86c ("drm/mediatek: drop use of drmP.h")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
3 years agodrm/i915: Filter wake_flags passed to default_wake_function
Chris Wilson [Tue, 28 Jul 2020 15:21:44 +0000 (16:21 +0100)]
drm/i915: Filter wake_flags passed to default_wake_function

(NOTE: This is the minimal backportable fix, a full fix is being
developed at https://patchwork.freedesktop.org/patch/388048/)

The flags passed to the wait_entry.func are passed onwards to
try_to_wake_up(), which has a very particular interpretation for its
wake_flags. In particular, beyond the published WF_SYNC, it has a few
internal flags as well. Since we passed the fence->error down the chain
via the flags argument, these ended up in the default_wake_function
confusing the kernel/sched.

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/2110
Fixes: ef4688497512 ("drm/i915: Propagate fence errors")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: <stable@vger.kernel.org> # v5.4+
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200728152144.1100-1-chris@chris-wilson.co.uk
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
[Joonas: Rebased and reordered into drm-intel-gt-next branch]
[Joonas: Added a note and link about more complete fix]
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
(cherry picked from commit f4b3c395540aa3d4f5a6275c5bdd83ab89034806)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
3 years agodrm/i915: Be wary of data races when reading the active execlists
Chris Wilson [Thu, 16 Jul 2020 14:22:06 +0000 (15:22 +0100)]
drm/i915: Be wary of data races when reading the active execlists

To implement preempt-to-busy (and so efficient timeslicing and best utilization
of the hardware submission ports) we let the GPU run asynchronously in respect
to the ELSP submission queue. This created challenges in keeping and accessing
the driver state mirroring the asynchronous GPU execution.

The latest occurence of this was spotted by KCSAN:

[ 1413.563200] BUG: KCSAN: data-race in __await_execution+0x217/0x370 [i915]
[ 1413.563221]
[ 1413.563236] race at unknown origin, with read to 0xffff88885bb6c478 of 8 bytes by task 9654 on cpu 1:
[ 1413.563548]  __await_execution+0x217/0x370 [i915]
[ 1413.563891]  i915_request_await_dma_fence+0x4eb/0x6a0 [i915]
[ 1413.564235]  i915_request_await_object+0x421/0x490 [i915]
[ 1413.564577]  i915_gem_do_execbuffer+0x29b7/0x3c40 [i915]
[ 1413.564967]  i915_gem_execbuffer2_ioctl+0x22f/0x5c0 [i915]
[ 1413.564998]  drm_ioctl_kernel+0x156/0x1b0
[ 1413.565022]  drm_ioctl+0x2ff/0x480
[ 1413.565046]  __x64_sys_ioctl+0x87/0xd0
[ 1413.565069]  do_syscall_64+0x4d/0x80
[ 1413.565094]  entry_SYSCALL_64_after_hwframe+0x44/0xa9

To complicate matters, we have to both avoid the read tearing of *active and
avoid any write tearing as perform the pending[] -> inflight[] promotion of the
execlists.

This is because we cannot rely on the memcpy doing u64 aligned copies on all
kernels/platforms and so we opt to open-code it with explicit WRITE_ONCE
annotations to satisfy KCSAN.

v2: When in doubt, write the same comment again.
v3: Expanded commit message.

Fixes: b55230e5e800 ("drm/i915: Check for awaits on still currently executing requests")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200716142207.13003-1-chris@chris-wilson.co.uk
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
[Joonas: Rebased and reordered into drm-intel-gt-next branch]
[Joonas: Added expanded commit message from Tvrtko and Chris]
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
(cherry picked from commit b4d9145b0154f8c71dafc2db5fd445f1f3db9426)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
3 years agodrm/i915/gem: Reduce context termination list iteration guard to RCU
Chris Wilson [Thu, 6 Aug 2020 10:59:54 +0000 (11:59 +0100)]
drm/i915/gem: Reduce context termination list iteration guard to RCU

As we now protect the timeline list using RCU, we can drop the
timeline->mutex for guarding the list iteration during context close, as
we are searching for an inflight request. Any new request will see the
context is banned and not be submitted. In doing so, pull the checks for
a concurrent submission of the request (notably the
i915_request_completed()) under the engine spinlock, to fully serialise
with __i915_request_submit()). That is in the case of preempt-to-busy
where the request may be completed during the __i915_request_submit(),
we need to be careful that we sample the request status after
serialising so that we don't miss the request the engine is actually
submitting.

Fixes: 4a3174152147 ("drm/i915/gem: Refine occupancy test in kill_context()")
References: d22d2d073ef8 ("drm/i915: Protect i915_request_await_start from early waits") # rcu protection of timeline->requests
References: https://gitlab.freedesktop.org/drm/intel/-/issues/1622
References: https://gitlab.freedesktop.org/drm/intel/-/issues/2158
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200806105954.7766-1-chris@chris-wilson.co.uk
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
(cherry picked from commit 736e785f9b28cd9ef2d16a80960a04fd00e64b22)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
3 years agodrm/i915/gem: Delay tracking the GEM context until it is registered
Chris Wilson [Thu, 30 Jul 2020 09:28:56 +0000 (10:28 +0100)]
drm/i915/gem: Delay tracking the GEM context until it is registered

Avoid exposing a partially constructed context by deferring the
list_add() from the initial construction to the end of registration.
Otherwise, if we peek into the list of contexts from inside debugfs, we
may see the partially constructed context and chase down some dangling
incomplete pointers.

Reported-by: CQ Tang <cq.tang@intel.com>
Fixes: 3aa9945a528e ("drm/i915: Separate GEM context construction and registration to userspace")
References: f6e8aa387171 ("drm/i915: Report the number of closed vma held by each context in debugfs")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: CQ Tang <cq.tang@intel.com>
Cc: <stable@vger.kernel.org> # v5.2+
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200730092856.23615-1-chris@chris-wilson.co.uk
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
(cherry picked from commit eb4dedae920a07c485328af3da2202ec5184fb17)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
3 years agodrm/amdgpu/dc: Require primary plane to be enabled whenever the CRTC is
Michel Dänzer [Fri, 4 Sep 2020 10:43:04 +0000 (12:43 +0200)]
drm/amdgpu/dc: Require primary plane to be enabled whenever the CRTC is

Don't check drm_crtc_state::active for this either, per its
documentation in include/drm/drm_crtc.h:

 * Hence drivers must not consult @active in their various
 * &drm_mode_config_funcs.atomic_check callback to reject an atomic
 * commit.

atomic_remove_fb disables the CRTC as needed for disabling the primary
plane.

This prevents at least the following problems if the primary plane gets
disabled (e.g. due to destroying the FB assigned to the primary plane,
as happens e.g. with mutter in Wayland mode):

* The legacy cursor ioctl returned EINVAL for a non-0 cursor FB ID
  (which enables the cursor plane).
* If the cursor plane was enabled, changing the legacy DPMS property
  value from off to on returned EINVAL.

v2:
* Minor changes to code comment and commit log, per review feedback.

GitLab: https://gitlab.gnome.org/GNOME/mutter/-/issues/1108
GitLab: https://gitlab.gnome.org/GNOME/mutter/-/issues/1165
GitLab: https://gitlab.gnome.org/GNOME/mutter/-/issues/1344
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/radeon: revert "Prefer lower feedback dividers"
Christian König [Wed, 9 Sep 2020 11:12:46 +0000 (13:12 +0200)]
drm/radeon: revert "Prefer lower feedback dividers"

Turns out this breaks a lot of different hardware.

This reverts commit fc8c70526bd30733ea8667adb8b8ffebea30a8ed.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdgpu: Include sienna_cichlid in USBC PD FW support.
Andrey Grodzovsky [Thu, 10 Sep 2020 17:59:33 +0000 (13:59 -0400)]
drm/amdgpu: Include sienna_cichlid in USBC PD FW support.

Create sysfs interface also for sienna_cichlid.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: update nv1x stutter latencies
Jun Lei [Thu, 3 Sep 2020 20:17:46 +0000 (16:17 -0400)]
drm/amd/display: update nv1x stutter latencies

[why]
Recent characterization shows increased stutter latencies on some SKUs,
leading to underflow.

[how]
Update SOC params to account for this worst case latency.

Signed-off-by: Jun Lei <jun.lei@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: Don't use DRM_ERROR() for DTM add topology
Bhawanpreet Lakha [Fri, 28 Aug 2020 15:09:38 +0000 (11:09 -0400)]
drm/amd/display: Don't use DRM_ERROR() for DTM add topology

[Why]
Previously we were only calling add_topology when hdcp was being enabled.
Now we call add_topology by default so the ERROR messages are printed if
the firmware is not loaded.

This error message is not relevant for normal display functionality so
no need to print a ERROR message.

[How]
Change DRM_ERROR to DRM_INFO

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/pm: support runtime pptable update for sienna_cichlid etc.
Jiansong Chen [Mon, 14 Sep 2020 06:42:51 +0000 (14:42 +0800)]
drm/amd/pm: support runtime pptable update for sienna_cichlid etc.

This avoids smu issue when enabling runtime pptable update for
sienna_cichlid and so on. Runtime pptable udpate is needed for test
and debug purpose.

Signed-off-by: Jiansong Chen <Jiansong.Chen@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdkfd: fix a memory leak issue
Dennis Li [Wed, 2 Sep 2020 09:11:09 +0000 (17:11 +0800)]
drm/amdkfd: fix a memory leak issue

In the resume stage of GPU recovery, start_cpsch will call pm_init
which set pm->allocated as false, cause the next pm_release_ib has
no chance to release ib memory.

Add pm_release_ib in stop_cpsch which will be called in the suspend
stage of GPU recovery.

Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Dennis Li <Dennis.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/kfd: fix a system crash issue during GPU recovery
Dennis Li [Wed, 2 Sep 2020 04:57:59 +0000 (12:57 +0800)]
drm/kfd: fix a system crash issue during GPU recovery

The crash log as the below:

[Thu Aug 20 23:18:14 2020] general protection fault: 0000 [#1] SMP NOPTI
[Thu Aug 20 23:18:14 2020] CPU: 152 PID: 1837 Comm: kworker/152:1 Tainted: G           OE     5.4.0-42-generic #46~18.04.1-Ubuntu
[Thu Aug 20 23:18:14 2020] Hardware name: GIGABYTE G482-Z53-YF/MZ52-G40-00, BIOS R12 05/13/2020
[Thu Aug 20 23:18:14 2020] Workqueue: events amdgpu_ras_do_recovery [amdgpu]
[Thu Aug 20 23:18:14 2020] RIP: 0010:evict_process_queues_cpsch+0xc9/0x130 [amdgpu]
[Thu Aug 20 23:18:14 2020] Code: 49 8d 4d 10 48 39 c8 75 21 eb 44 83 fa 03 74 36 80 78 72 00 74 0c 83 ab 68 01 00 00 01 41 c6 45 41 00 48 8b 00 48 39 c8 74 25 <80> 78 70 00 c6 40 6d 01 74 ee 8b 50 28 c6 40 70 00 83 ab 60 01 00
[Thu Aug 20 23:18:14 2020] RSP: 0018:ffffb29b52f6fc90 EFLAGS: 00010213
[Thu Aug 20 23:18:14 2020] RAX: 1c884edb0a118914 RBX: ffff8a0d45ff3c00 RCX: ffff8a2d83e41038
[Thu Aug 20 23:18:14 2020] RDX: 0000000000000000 RSI: 0000000000000082 RDI: ffff8a0e2e4178c0
[Thu Aug 20 23:18:14 2020] RBP: ffffb29b52f6fcb0 R08: 0000000000001b64 R09: 0000000000000004
[Thu Aug 20 23:18:14 2020] R10: ffffb29b52f6fb78 R11: 0000000000000001 R12: ffff8a0d45ff3d28
[Thu Aug 20 23:18:14 2020] R13: ffff8a2d83e41028 R14: 0000000000000000 R15: 0000000000000000
[Thu Aug 20 23:18:14 2020] FS:  0000000000000000(0000) GS:ffff8a0e2e400000(0000) knlGS:0000000000000000
[Thu Aug 20 23:18:14 2020] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[Thu Aug 20 23:18:14 2020] CR2: 000055c783c0e6a8 CR3: 00000034a1284000 CR4: 0000000000340ee0
[Thu Aug 20 23:18:14 2020] Call Trace:
[Thu Aug 20 23:18:14 2020]  kfd_process_evict_queues+0x43/0xd0 [amdgpu]
[Thu Aug 20 23:18:14 2020]  kfd_suspend_all_processes+0x60/0xf0 [amdgpu]
[Thu Aug 20 23:18:14 2020]  kgd2kfd_suspend.part.7+0x43/0x50 [amdgpu]
[Thu Aug 20 23:18:14 2020]  kgd2kfd_pre_reset+0x46/0x60 [amdgpu]
[Thu Aug 20 23:18:14 2020]  amdgpu_amdkfd_pre_reset+0x1a/0x20 [amdgpu]
[Thu Aug 20 23:18:14 2020]  amdgpu_device_gpu_recover+0x377/0xf90 [amdgpu]
[Thu Aug 20 23:18:14 2020]  ? amdgpu_ras_error_query+0x1b8/0x2a0 [amdgpu]
[Thu Aug 20 23:18:14 2020]  amdgpu_ras_do_recovery+0x159/0x190 [amdgpu]
[Thu Aug 20 23:18:14 2020]  process_one_work+0x20f/0x400
[Thu Aug 20 23:18:14 2020]  worker_thread+0x34/0x410

When GPU hang, user process will fail to create a compute queue whose
struct object will be freed later, but driver wrongly add this queue to
queue list of the proccess. And then kfd_process_evict_queues will
access a freed memory, which cause a system crash.

v2:
The failure to execute_queues should probably not be reported to
the caller of create_queue, because the queue was already created.
Therefore change to ignore the return value from execute_queues.

Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Dennis Li <Dennis.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
3 years agoLinux 5.9-rc5
Linus Torvalds [Sun, 13 Sep 2020 23:06:00 +0000 (16:06 -0700)]
Linux 5.9-rc5

3 years agoMerge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Linus Torvalds [Sun, 13 Sep 2020 21:54:40 +0000 (14:54 -0700)]
Merge tag 'armsoc-fixes' of git://git./linux/kernel/git/soc/soc

Pull ARM SoC fixes from Olof Johansson:
 "A collection of fixes I've been accruing over the last few weeks, none
  of them have been severe enough to warrant flushing the queue but it's
  been long enough now that it's a good idea to send them in.

  A handful of them are fixups for QSPI DT/bindings/compatibles, some
  smaller fixes for system DMA clock control and TMU interrupts on i.MX,
  a handful of fixes for OMAP, including a fix for DSI (display) on
  omap5"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (27 commits)
  arm64: dts: ns2: Fixed QSPI compatible string
  ARM: dts: BCM5301X: Fixed QSPI compatible string
  ARM: dts: NSP: Fixed QSPI compatible string
  ARM: dts: bcm: HR2: Fixed QSPI compatible string
  dt-bindings: spi: Fix spi-bcm-qspi compatible ordering
  ARM: dts: imx6sx: fix the pad QSPI1B_SCLK mux mode for uart3
  arm64: dts: imx8mp: correct sdma1 clk setting
  arm64: dts: imx8mq: Fix TMU interrupt property
  ARM: dts: imx7d-zii-rmu2: fix rgmii phy-mode for ksz9031 phy
  ARM: dts: vfxxx: Add syscon compatible with OCOTP
  ARM: dts: imx6q-logicpd: Fix broken PWM
  arm64: dts: imx: Add missing imx8mm-beacon-kit.dtb to build
  ARM: dts: imx6q-prtwd2: Remove unneeded i2c unit name
  ARM: dts: imx6qdl-gw51xx: Remove unneeded #address-cells/#size-cells
  ARM: dts: imx7ulp: Correct gpio ranges
  ARM: dts: ls1021a: fix QuadSPI-memory reg range
  arm64: defconfig: Enable ptn5150 extcon driver
  arm64: defconfig: Enable USB gadget with configfs
  ARM: configs: Update Integrator defconfig
  ARM: dts: omap5: Fix DSI base address and clocks
  ...

3 years agoMerge tag 'usb-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sun, 13 Sep 2020 16:23:54 +0000 (09:23 -0700)]
Merge tag 'usb-5.9-rc5' of git://git./linux/kernel/git/gregkh/usb

Pull USB/Thunderbolt fixes from Greg KH:
 "Here are some small USB and Thunderbolt driver fixes for 5.9-rc5.

  Nothing huge, just a number of bugfixes and new device ids for
  problems reported:

   - new USB serial driver ids

   - bug fixes for syzbot reported problems

   - typec driver fixes

   - thunderbolt driver fixes

   - revert of reported broken commit

  All of these have been in linux-next with no reported issues"

* tag 'usb-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: typec: intel_pmc_mux: Do not configure SBU and HSL Orientation in Alternate modes
  usb: typec: intel_pmc_mux: Do not configure Altmode HPD High
  usb: core: fix slab-out-of-bounds Read in read_descriptors
  Revert "usb: dwc3: meson-g12a: fix shared reset control use"
  usb: typec: ucsi: acpi: Check the _DEP dependencies
  usb: typec: intel_pmc_mux: Un-register the USB role switch
  usb: Fix out of sync data toggle if a configured device is reconfigured
  USB: serial: option: support dynamic Quectel USB compositions
  USB: serial: option: add support for SIM7070/SIM7080/SIM7090 modules
  thunderbolt: Use maximum USB3 link rate when reclaiming if link is not up
  thunderbolt: Disable ports that are not implemented
  USB: serial: ftdi_sio: add IDs for Xsens Mti USB converter

3 years agoMerge tag 'staging-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sun, 13 Sep 2020 16:15:20 +0000 (09:15 -0700)]
Merge tag 'staging-5.9-rc5' of git://git./linux/kernel/git/gregkh/staging

Pull staging/IIO driver fixes from Greg KH:
 "Here are a number of staging and IIO driver fixes for 5.9-rc5.

  The majority of these are IIO driver fixes, to resolve a timestamp
  issue that was recently found to affect a bunch of IIO drivers.

  The other fixes in here are:

   - small IIO driver fixes

   - greybus driver fix

   - counter driver fix (came in through the IIO fixes tree)

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'staging-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (23 commits)
  iio: adc: mcp3422: fix locking on error path
  iio: adc: mcp3422: fix locking scope
  iio: adc: meson-saradc: Use the parent device to look up the calib data
  iio:adc:max1118 Fix alignment of timestamp and data leak issues
  iio:adc:ina2xx Fix timestamp alignment issue.
  iio:adc:ti-adc084s021 Fix alignment and data leak issues.
  iio:adc:ti-adc081c Fix alignment and data leak issues
  iio:magnetometer:ak8975 Fix alignment and data leak issues.
  iio:light:ltr501 Fix timestamp alignment issue.
  iio:light:max44000 Fix timestamp alignment and prevent data leak.
  iio:chemical:ccs811: Fix timestamp alignment and prevent data leak.
  iio:proximity:mb1232: Fix timestamp alignment and prevent data leak.
  iio:accel:mma7455: Fix timestamp alignment and prevent data leak.
  iio:accel:bmc150-accel: Fix timestamp alignment and prevent data leak.
  iio:accel:mma8452: Fix timestamp alignment and prevent data leak.
  iio: accel: kxsd9: Fix alignment of local buffer.
  iio: adc: rockchip_saradc: select IIO_TRIGGERED_BUFFER
  iio: adc: ti-ads1015: fix conversion when CONFIG_PM is not set
  counter: microchip-tcb-capture: check the correct variable
  iio: cros_ec: Set Gyroscope default frequency to 25Hz
  ...

3 years agoMerge tag 'driver-core-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 13 Sep 2020 16:02:59 +0000 (09:02 -0700)]
Merge tag 'driver-core-5.9-rc5' of git://git./linux/kernel/git/gregkh/driver-core

Pull driver core fixes from Greg KH:
 "Here are some small driver core and debugfs fixes for 5.9-rc5

  Included in here are:

   - firmware loader memory leak fix

   - firmware loader testing fixes for non-EFI systems

   - device link locking fixes found by lockdep

   - kobject_del() bugfix that has been affecting some callers

   - debugfs minor fix

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'driver-core-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  test_firmware: Test platform fw loading on non-EFI systems
  PM: <linux/device.h>: fix @em_pd kernel-doc warning
  kobject: Drop unneeded conditional in __kobject_del()
  driver core: Fix device_pm_lock() locking for device links
  MAINTAINERS: Add the security document to SECURITY CONTACT
  driver code: print symbolic error code
  debugfs: Fix module state check condition
  kobject: Restore old behaviour of kobject_del(NULL)
  firmware_loader: fix memory leak for paged buffer

3 years agoMerge tag 'arm-soc/for-5.9/devicetree-fixes' of https://github.com/Broadcom/stblinux...
Olof Johansson [Sun, 13 Sep 2020 15:57:37 +0000 (08:57 -0700)]
Merge tag 'arm-soc/for-5.9/devicetree-fixes' of https://github.com/Broadcom/stblinux into arm/fixes

This pull request contains Broadcom ARM-based SoCs Device Tree fixes for
5.9, please pull the following:

- Florian fixes the Broadcom QSPI controller binding such that the most
  specific compatible string is the left most one, and all existing
  in-tree users are updated as well.

* tag 'arm-soc/for-5.9/devicetree-fixes' of https://github.com/Broadcom/stblinux:
  arm64: dts: ns2: Fixed QSPI compatible string
  ARM: dts: BCM5301X: Fixed QSPI compatible string
  ARM: dts: NSP: Fixed QSPI compatible string
  ARM: dts: bcm: HR2: Fixed QSPI compatible string
  dt-bindings: spi: Fix spi-bcm-qspi compatible ordering

Link: https://lore.kernel.org/r/20200909211857.4144718-1-f.fainelli@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
3 years agoMerge tag 'imx-fixes-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo...
Olof Johansson [Sun, 13 Sep 2020 15:56:03 +0000 (08:56 -0700)]
Merge tag 'imx-fixes-5.9-2' of git://git./linux/kernel/git/shawnguo/linux into arm/fixes

i.MX fixes for 5.9, round 2:

- Fix the misspelling of 'interrupts' property in i.MX8MQ TMU DT node.
- Correct 'ahb' clock for i.MX8MP SDMA1 in device tree.
- Fix pad QSPI1B_SCLK mux mode for UART3 on i.MX6SX.

* tag 'imx-fixes-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: dts: imx6sx: fix the pad QSPI1B_SCLK mux mode for uart3
  arm64: dts: imx8mp: correct sdma1 clk setting
  arm64: dts: imx8mq: Fix TMU interrupt property

Link: https://lore.kernel.org/r/20200909143844.GA25109@dragon
Signed-off-by: Olof Johansson <olof@lixom.net>
3 years agoMerge tag 'omap-for-v5.9/fixes-rc3' of git://git.kernel.org/pub/scm/linux/kernel...
Olof Johansson [Sun, 13 Sep 2020 15:54:01 +0000 (08:54 -0700)]
Merge tag 'omap-for-v5.9/fixes-rc3' of git://git./linux/kernel/git/tmlind/linux-omap into arm/fixes

Fixes for omaps for v5.9-rc cycle

Few fixes for omap based devices:

- Fix of_clk_get() error handling for omap-iommu

- Fix missing audio pinctrl entries for logicpd boards

- Fix video for logicpd-som-lv after switch to generic panels

- Fix omap5 DSI clocks base

* tag 'omap-for-v5.9/fixes-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: omap5: Fix DSI base address and clocks
  ARM: dts: logicpd-som-lv-baseboard: Fix missing video
  ARM: dts: logicpd-som-lv-baseboard: Fix broken audio
  ARM: dts: logicpd-torpedo-baseboard: Fix broken audio
  ARM: OMAP2+: Fix an IS_ERR() vs NULL check in _get_pwrdm()

Link: https://lore.kernel.org/r/pull-1599132064-54898@atomide.com
Signed-off-by: Olof Johansson <olof@lixom.net>
3 years agoMerge tag 'char-misc-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sun, 13 Sep 2020 15:52:21 +0000 (08:52 -0700)]
Merge tag 'char-misc-5.9-rc5' of git://git./linux/kernel/git/gregkh/char-misc

Pull char / misc driver fixes from Greg KH:
 "Here are a number of small driver fixes for 5.9-rc5

  Included in here are:

   - habanalabs driver fixes

   - interconnect driver fixes

   - soundwire driver fixes

   - dyndbg fixes for reported issues, and then reverts to fix it all up
     to a sane state.

   - phy driver fixes

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  Revert "dyndbg: accept query terms like file=bar and module=foo"
  Revert "dyndbg: fix problem parsing format="foo bar""
  scripts/tags.sh: exclude tools directory from tags generation
  video: fbdev: fix OOB read in vga_8planes_imageblit()
  dyndbg: fix problem parsing format="foo bar"
  dyndbg: refine export, rename to dynamic_debug_exec_queries()
  dyndbg: give %3u width in pr-format, cosmetic only
  interconnect: qcom: Fix small BW votes being truncated to zero
  soundwire: fix double free of dangling pointer
  interconnect: Show bandwidth for disabled paths as zero in debugfs
  habanalabs: fix report of RAZWI initiator coordinates
  habanalabs: prevent user buff overflow
  phy: omap-usb2-phy: disable PHY charger detect
  phy: qcom-qmp: Use correct values for ipq8074 PCIe Gen2 PHY init
  soundwire: bus: fix typo in comment on INTSTAT registers
  phy: qualcomm: fix return value check in qcom_ipq806x_usb_phy_probe()
  phy: qualcomm: fix platform_no_drv_owner.cocci warnings

3 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Sun, 13 Sep 2020 15:34:47 +0000 (08:34 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "A bit on the bigger side, mostly due to me being on vacation, then
  busy, then on parental leave, but there's nothing worrisome.

  ARM:
   - Multiple stolen time fixes, with a new capability to match x86
   - Fix for hugetlbfs mappings when PUD and PMD are the same level
   - Fix for hugetlbfs mappings when PTE mappings are enforced (dirty
     logging, for example)
   - Fix tracing output of 64bit values

  x86:
   - nSVM state restore fixes
   - Async page fault fixes
   - Lots of small fixes everywhere"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (25 commits)
  KVM: emulator: more strict rsm checks.
  KVM: nSVM: more strict SMM checks when returning to nested guest
  SVM: nSVM: setup nested msr permission bitmap on nested state load
  SVM: nSVM: correctly restore GIF on vmexit from nesting after migration
  x86/kvm: don't forget to ACK async PF IRQ
  x86/kvm: properly use DEFINE_IDTENTRY_SYSVEC() macro
  KVM: VMX: Don't freeze guest when event delivery causes an APIC-access exit
  KVM: SVM: avoid emulation with stale next_rip
  KVM: x86: always allow writing '0' to MSR_KVM_ASYNC_PF_EN
  KVM: SVM: Periodically schedule when unregistering regions on destroy
  KVM: MIPS: Change the definition of kvm type
  kvm x86/mmu: use KVM_REQ_MMU_SYNC to sync when needed
  KVM: nVMX: Fix the update value of nested load IA32_PERF_GLOBAL_CTRL control
  KVM: fix memory leak in kvm_io_bus_unregister_dev()
  KVM: Check the allocation of pv cpu mask
  KVM: nVMX: Update VMCS02 when L2 PAE PDPTE updates detected
  KVM: arm64: Update page shift if stage 2 block mapping not supported
  KVM: arm64: Fix address truncation in traces
  KVM: arm64: Do not try to map PUDs when they are folded into PMD
  arm64/x86: KVM: Introduce steal-time cap
  ...

3 years agoMerge tag 'for-linus' of git://github.com/openrisc/linux
Linus Torvalds [Sat, 12 Sep 2020 20:03:49 +0000 (13:03 -0700)]
Merge tag 'for-linus' of git://github.com/openrisc/linux

Pull OpenRISC fixes from Stafford Horne:
 "Fixes for compile issues pointed out by kbuild and one bug I found in
  initrd with the 5.9 patches"

* tag 'for-linus' of git://github.com/openrisc/linux:
  openrisc: Fix issue with get_user for 64-bit values
  openrisc: Fix cache API compile issue when not inlining
  openrisc: Reserve memblock for initrd

3 years agoMerge tag 'seccomp-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees...
Linus Torvalds [Sat, 12 Sep 2020 19:58:01 +0000 (12:58 -0700)]
Merge tag 'seccomp-v5.9-rc5' of git://git./linux/kernel/git/kees/linux

Pull seccomp fixes from Kees Cook:
 "This fixes a rare race condition in seccomp when using TSYNC and
  USER_NOTIF together where a memory allocation would not get freed
  (found by syzkaller, fixed by Tycho).

  Additionally updates Tycho's MAINTAINERS and .mailmap entries for his
  new address"

* tag 'seccomp-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  seccomp: don't leave dangling ->notif if file allocation fails
  mailmap, MAINTAINERS: move to tycho.pizza
  seccomp: don't leak memory when filter install races

3 years agoMerge tag 'libnvdimm-fix-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 12 Sep 2020 19:43:58 +0000 (12:43 -0700)]
Merge tag 'libnvdimm-fix-v5.9-rc5' of git://git./linux/kernel/git/nvdimm/nvdimm

Pull libnvdimm fix from Vishal Verma:
 "Fix detection of dax support for block devices.

  Previous fixes in this area, which only affected printing of debug
  messages, had an incorrect condition for detection of dax. This fix
  should finally do the right thing"

* tag 'libnvdimm-fix-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  dax: fix detection of dax support for non-persistent memory block devices

3 years agoMerge tag 'for-5.9-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Sat, 12 Sep 2020 19:28:39 +0000 (12:28 -0700)]
Merge tag 'for-5.9-rc4-tag' of git://git./linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "A few more fixes:

   - regression fix for a crash after failed snapshot creation

   - one more lockep fix: use nofs allocation when allocating missing
     device

   - fix reloc tree leak on degraded mount

   - make some extent buffer alignment checks less strict to mount
     filesystems created by btrfs-convert"

* tag 'for-5.9-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: fix NULL pointer dereference after failure to create snapshot
  btrfs: free data reloc tree on failed mount
  btrfs: require only sector size alignment for parent eb bytenr
  btrfs: fix lockdep splat in add_missing_dev

3 years agoMerge tag '5.9-rc4-smb3-fix' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Sat, 12 Sep 2020 18:48:04 +0000 (11:48 -0700)]
Merge tag '5.9-rc4-smb3-fix' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fix from Steve French:
 "A fix for lookup on DFS link when cifsacl or modefromsid is used"

* tag '5.9-rc4-smb3-fix' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix DFS mount with cifsacl/modefromsid

3 years agoKVM: emulator: more strict rsm checks.
Maxim Levitsky [Thu, 27 Aug 2020 17:11:44 +0000 (20:11 +0300)]
KVM: emulator: more strict rsm checks.

Don't ignore return values in rsm_load_state_64/32 to avoid
loading invalid state from SMM state area if it was tampered with
by the guest.

This is primarly intended to avoid letting guest set bits in EFER
(like EFER.SVME when nesting is disabled) by manipulating SMM save area.

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200827171145.374620-8-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
3 years agoKVM: nSVM: more strict SMM checks when returning to nested guest
Maxim Levitsky [Thu, 27 Aug 2020 16:27:20 +0000 (19:27 +0300)]
KVM: nSVM: more strict SMM checks when returning to nested guest

* check that guest is 64 bit guest, otherwise the SVM related fields
  in the smm state area are not defined

* If the SMM area indicates that SMM interrupted a running guest,
  check that EFER.SVME which is also saved in this area is set, otherwise
  the guest might have tampered with SMM save area, and so indicate
  emulation failure which should triple fault the guest.

* Check that that guest CPUID supports SVM (due to the same issue as above)

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200827162720.278690-4-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
3 years agoSVM: nSVM: setup nested msr permission bitmap on nested state load
Maxim Levitsky [Thu, 27 Aug 2020 16:27:19 +0000 (19:27 +0300)]
SVM: nSVM: setup nested msr permission bitmap on nested state load

This code was missing and was forcing the L2 run with L1's msr
permission bitmap

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200827162720.278690-3-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
3 years agoSVM: nSVM: correctly restore GIF on vmexit from nesting after migration
Maxim Levitsky [Thu, 27 Aug 2020 16:27:18 +0000 (19:27 +0300)]
SVM: nSVM: correctly restore GIF on vmexit from nesting after migration

Currently code in svm_set_nested_state copies the current vmcb control
area to L1 control area (hsave->control), under assumption that
it mostly reflects the defaults that kvm choose, and later qemu
overrides  these defaults with L2 state using standard KVM interfaces,
like KVM_SET_REGS.

However nested GIF (which is AMD specific thing) is by default is true,
and it is copied to hsave area as such.

This alone is not a big deal since on VMexit, GIF is always set to false,
regardless of what it was on VM entry.  However in nested_svm_vmexit we
were first were setting GIF to false, but then we overwrite the control
fields with value from the hsave area.  (including the nested GIF field
itself if GIF virtualization is enabled).

Now on normal vm entry this is not a problem, since GIF is usually false
prior to normal vm entry, and this is the value that copied to hsave,
and then restored, but this is not always the case when the nested state
is loaded as explained above.

To fix this issue, move svm_set_gif after we restore the L1 control
state in nested_svm_vmexit, so that even with wrong GIF in the
saved L1 control area, we still clear GIF as the spec says.

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200827162720.278690-2-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
3 years agoopenrisc: Fix issue with get_user for 64-bit values
Stafford Horne [Wed, 2 Sep 2020 20:54:40 +0000 (05:54 +0900)]
openrisc: Fix issue with get_user for 64-bit values

A build failure was raised by kbuild with the following error.

    drivers/android/binder.c: Assembler messages:
    drivers/android/binder.c:3861: Error: unrecognized keyword/register name `l.lwz ?ap,4(r24)'
    drivers/android/binder.c:3866: Error: unrecognized keyword/register name `l.addi ?ap,r0,0'

The issue is with 64-bit get_user() calls on openrisc.  I traced this to
a problem where in the internally in the get_user macros there is a cast
to long __gu_val this causes GCC to think the get_user call is 32-bit.
This binder code is really long and GCC allocates register r30, which
triggers the issue. The 64-bit get_user asm tries to get the 64-bit pair
register, which for r30 overflows the general register names and returns
the dummy register ?ap.

The fix here is to move the temporary variables into the asm macros.  We
use a 32-bit __gu_tmp for 32-bit and smaller macro and a 64-bit tmp in
the 64-bit macro.  The cast in the 64-bit macro has a trick of casting
through __typeof__((x)-(x)) which avoids the below warning.  This was
barrowed from riscv.

    arch/openrisc/include/asm/uaccess.h:240:8: warning: cast to pointer from integer of different size

I tested this in a small unit test to check reading between 64-bit and
32-bit pointers to 64-bit and 32-bit values in all combinations.  Also I
ran make C=1 to confirm no new sparse warnings came up.  It all looks
clean to me.

Link: https://lore.kernel.org/lkml/202008200453.ohnhqkjQ%25lkp@intel.com/
Signed-off-by: Stafford Horne <shorne@gmail.com>
Reviewed-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
3 years agox86/kvm: don't forget to ACK async PF IRQ
Vitaly Kuznetsov [Tue, 8 Sep 2020 13:53:50 +0000 (15:53 +0200)]
x86/kvm: don't forget to ACK async PF IRQ

Merge commit 26d05b368a5c0 ("Merge branch 'kvm-async-pf-int' into HEAD")
tried to adapt the new interrupt based async PF mechanism to the newly
introduced IDTENTRY magic but unfortunately it missed the fact that
DEFINE_IDTENTRY_SYSVEC() doesn't call ack_APIC_irq() on its own and
all DEFINE_IDTENTRY_SYSVEC() users have to call it manually.

As the result all multi-CPU KVM guest hang on boot when
KVM_FEATURE_ASYNC_PF_INT is present. The breakage went unnoticed because no
KVM userspace (e.g. QEMU) currently set it (and thus async PF mechanism
is currently disabled) but we're about to change that.

Fixes: 26d05b368a5c0 ("Merge branch 'kvm-async-pf-int' into HEAD")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20200908135350.355053-3-vkuznets@redhat.com>
Tested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
3 years agox86/kvm: properly use DEFINE_IDTENTRY_SYSVEC() macro
Vitaly Kuznetsov [Tue, 8 Sep 2020 13:53:49 +0000 (15:53 +0200)]
x86/kvm: properly use DEFINE_IDTENTRY_SYSVEC() macro

DEFINE_IDTENTRY_SYSVEC() already contains irqentry_enter()/
irqentry_exit().

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20200908135350.355053-2-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
3 years agoKVM: VMX: Don't freeze guest when event delivery causes an APIC-access exit
Wanpeng Li [Wed, 19 Aug 2020 08:55:27 +0000 (16:55 +0800)]
KVM: VMX: Don't freeze guest when event delivery causes an APIC-access exit

According to SDM 27.2.4, Event delivery causes an APIC-access VM exit.
Don't report internal error and freeze guest when event delivery causes
an APIC-access exit, it is handleable and the event will be re-injected
during the next vmentry.

Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1597827327-25055-2-git-send-email-wanpengli@tencent.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
3 years agoKVM: SVM: avoid emulation with stale next_rip
Wanpeng Li [Sat, 12 Sep 2020 06:16:39 +0000 (02:16 -0400)]
KVM: SVM: avoid emulation with stale next_rip

svm->next_rip is reset in svm_vcpu_run() only after calling
svm_exit_handlers_fastpath(), which will cause SVM's
skip_emulated_instruction() to write a stale RIP.

We can move svm_exit_handlers_fastpath towards the end of
svm_vcpu_run().  To align VMX with SVM, keep svm_complete_interrupts()
close as well.

Suggested-by: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Paul K. <kronenpj@kronenpj.dyndns.org>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
[Also move vmcb_mark_all_clean before any possible write to the VMCB.
 - Paolo]

3 years agoMerge tag 'ceph-for-5.9-rc5' of git://github.com/ceph/ceph-client
Linus Torvalds [Fri, 11 Sep 2020 20:47:29 +0000 (13:47 -0700)]
Merge tag 'ceph-for-5.9-rc5' of git://github.com/ceph/ceph-client

Pull ceph fix from Ilya Dryomov:
 "Add missing capability checks in rbd, marked for stable"

* tag 'ceph-for-5.9-rc5' of git://github.com/ceph/ceph-client:
  rbd: require global CAP_SYS_ADMIN for mapping and unmapping

3 years agoMerge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Fri, 11 Sep 2020 20:43:05 +0000 (13:43 -0700)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux

Pull i2c updates from Wolfram Sang:
 "Usual driver bugfixes for the I2C subsystem"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: algo: pca: Reapply i2c bus settings after reset
  i2c: npcm7xx: Fix timeout calculation
  misc: eeprom: at24: register nvmem only after eeprom is ready to use

3 years agoMerge tag 'pm-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Fri, 11 Sep 2020 18:59:14 +0000 (11:59 -0700)]
Merge tag 'pm-5.9-rc5' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix three pieces of documentation and add new CPU IDs to the
  Intel RAPL power capping driver.

  Specifics:

   - Add CPU IDs of the TigerLake Desktop, RocketLake and AlderLake
     chips to the Intel RAPL power capping driver (Zhang Rui).

   - Add the missing energy model performance domain item to the struct
     device kerneldoc comment (Randy Dunlap).

   - Fix the struct powercap_control_type kerneldoc comment to match the
     actual definition of that structure and add missing item to the
     struct powercap_zone_ops kerneldoc comment (Amit Kucheria)"

* tag 'pm-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  powercap: make documentation reflect code
  PM: <linux/device.h>: fix @em_pd kernel-doc warning
  powercap/intel_rapl: add support for AlderLake
  powercap/intel_rapl: add support for RocketLake
  powercap/intel_rapl: add support for TigerLake Desktop

3 years agoMerge tag 'block-5.9-2020-09-11' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 11 Sep 2020 18:55:28 +0000 (11:55 -0700)]
Merge tag 'block-5.9-2020-09-11' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - Fix a regression in bdev partition locking (Christoph)

 - NVMe pull request from Christoph:
      - cancel async events before freeing them (David Milburn)
      - revert a broken race fix (James Smart)
      - fix command processing during resets (Sagi Grimberg)

 - Fix a kyber crash with requeued flushes (Omar)

 - Fix __bio_try_merge_page() same_page error for no merging (Ritesh)

* tag 'block-5.9-2020-09-11' of git://git.kernel.dk/linux-block:
  block: Set same_page to false in __bio_try_merge_page if ret is false
  nvme-fabrics: allow to queue requests for live queues
  block: only call sched requeue_request() for scheduled requests
  nvme-tcp: cancel async events before freeing event struct
  nvme-rdma: cancel async events before freeing event struct
  nvme-fc: cancel async events before freeing event struct
  nvme: Revert: Fix controller creation races with teardown flow
  block: restore a specific error code in bdev_del_partition

3 years agoMerge tag 'spi-fix-v5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Linus Torvalds [Fri, 11 Sep 2020 18:35:55 +0000 (11:35 -0700)]
Merge tag 'spi-fix-v5.9-rc4' of git://git./linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "There's some driver specific fixes here plus one core fix for memory
  leaks that could be triggered by a potential race condition when
  cleaning up after we have split transfers to fit into what the
  controller can support"

* tag 'spi-fix-v5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: stm32: fix pm_runtime_get_sync() error checking
  spi: Fix memory leak on splited transfers
  spi: spi-cadence-quadspi: Fix mapping of buffers for DMA reads
  spi: stm32: Rate-limit the 'Communication suspended' message
  spi: spi-loopback-test: Fix out-of-bounds read
  spi: spi-cadence-quadspi: Populate get_name() interface
  MAINTAINERS: add myself as maintainer for spi-fsl-dspi driver

3 years agoMerge tag 'regulator-fix-v5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 11 Sep 2020 18:25:55 +0000 (11:25 -0700)]
Merge tag 'regulator-fix-v5.9-rc4' of git://git./linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "The biggest set of fixes here is those from Michał Mirosław fixing
  some locking issues with coupled regulators that are triggered in
  cases where a coupled regulator is used by a device involved in
  fs_reclaim like eMMC storage.

  These are relatively serious for the affected systems, though the
  circumstances where they trigger are very rare"

* tag 'regulator-fix-v5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: pwm: Fix machine constraints application
  regulator: core: Fix slab-out-of-bounds in regulator_unlock_recursive()
  regulator: remove superfluous lock in regulator_resolve_coupling()
  regulator: cleanup regulator_ena_gpio_free()
  regulator: plug of_node leak in regulator_register()'s error path
  regulator: push allocation in set_consumer_device_supply() out of lock
  regulator: push allocations in create_regulator() outside of lock
  regulator: push allocation in regulator_ena_gpio_request() out of lock
  regulator: push allocation in regulator_init_coupling() outside of lock
  regulator: fix spelling mistake "Cant" -> "Can't"
  regulator: cros-ec-regulator: Add NULL test for devm_kmemdup call

3 years agoKVM: x86: always allow writing '0' to MSR_KVM_ASYNC_PF_EN
Vitaly Kuznetsov [Fri, 11 Sep 2020 09:31:47 +0000 (11:31 +0200)]
KVM: x86: always allow writing '0' to MSR_KVM_ASYNC_PF_EN

Even without in-kernel LAPIC we should allow writing '0' to
MSR_KVM_ASYNC_PF_EN as we're not enabling the mechanism. In
particular, QEMU with 'kernel-irqchip=off' fails to start
a guest with

qemu-system-x86_64: error: failed to set MSR 0x4b564d02 to 0x0

Fixes: 9d3c447c72fb2 ("KVM: X86: Fix async pf caused null-ptr-deref")
Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20200911093147.484565-1-vkuznets@redhat.com>
[Actually commit the version proposed by Sean Christopherson. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
3 years agoKVM: SVM: Periodically schedule when unregistering regions on destroy
David Rientjes [Tue, 25 Aug 2020 19:56:28 +0000 (12:56 -0700)]
KVM: SVM: Periodically schedule when unregistering regions on destroy

There may be many encrypted regions that need to be unregistered when a
SEV VM is destroyed.  This can lead to soft lockups.  For example, on a
host running 4.15:

watchdog: BUG: soft lockup - CPU#206 stuck for 11s! [t_virtual_machi:194348]
CPU: 206 PID: 194348 Comm: t_virtual_machi
RIP: 0010:free_unref_page_list+0x105/0x170
...
Call Trace:
 [<0>] release_pages+0x159/0x3d0
 [<0>] sev_unpin_memory+0x2c/0x50 [kvm_amd]
 [<0>] __unregister_enc_region_locked+0x2f/0x70 [kvm_amd]
 [<0>] svm_vm_destroy+0xa9/0x200 [kvm_amd]
 [<0>] kvm_arch_destroy_vm+0x47/0x200
 [<0>] kvm_put_kvm+0x1a8/0x2f0
 [<0>] kvm_vm_release+0x25/0x30
 [<0>] do_exit+0x335/0xc10
 [<0>] do_group_exit+0x3f/0xa0
 [<0>] get_signal+0x1bc/0x670
 [<0>] do_signal+0x31/0x130

Although the CLFLUSH is no longer issued on every encrypted region to be
unregistered, there are no other changes that can prevent soft lockups for
very large SEV VMs in the latest kernel.

Periodically schedule if necessary.  This still holds kvm->lock across the
resched, but since this only happens when the VM is destroyed this is
assumed to be acceptable.

Signed-off-by: David Rientjes <rientjes@google.com>
Message-Id: <alpine.DEB.2.23.453.2008251255240.2987727@chino.kir.corp.google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
3 years agoKVM: MIPS: Change the definition of kvm type
Huacai Chen [Thu, 10 Sep 2020 10:33:51 +0000 (18:33 +0800)]
KVM: MIPS: Change the definition of kvm type

MIPS defines two kvm types:

 #define KVM_VM_MIPS_TE          0
 #define KVM_VM_MIPS_VZ          1

In Documentation/virt/kvm/api.rst it is said that "You probably want to
use 0 as machine type", which implies that type 0 be the "automatic" or
"default" type. And, in user-space libvirt use the null-machine (with
type 0) to detect the kvm capability, which returns "KVM not supported"
on a VZ platform.

I try to fix it in QEMU but it is ugly:
https://lists.nongnu.org/archive/html/qemu-devel/2020-08/msg05629.html

And Thomas Huth suggests me to change the definition of kvm type:
https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg03281.html

So I define like this:

 #define KVM_VM_MIPS_AUTO        0
 #define KVM_VM_MIPS_VZ          1
 #define KVM_VM_MIPS_TE          2

Since VZ and TE cannot co-exists, using type 0 on a TE platform will
still return success (so old user-space tools have no problems on new
kernels); the advantage is that using type 0 on a VZ platform will not
return failure. So, the only problem is "new user-space tools use type
2 on old kernels", but if we treat this as a kernel bug, we can backport
this patch to old stable kernels.

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Message-Id: <1599734031-28746-1-git-send-email-chenhc@lemote.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
3 years agoMerge tag 'mmc-v5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Linus Torvalds [Fri, 11 Sep 2020 17:19:27 +0000 (10:19 -0700)]
Merge tag 'mmc-v5.9-rc4' of git://git./linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:
 "MMC core:
   - sdio: Restore ~20% performance drop for SDHCI drivers, by using
     mmc_pre_req() and mmc_post_req() for SDIO requests.

  MMC host:
   - sdhci-of-esdhc: Fix support for erratum eSDHC7
   - mmc_spi: Allow the driver to be built when CONFIG_HAS_DMA is unset
   - sdhci-msm: Use retries to fix tuning
   - sdhci-acpi: Fix resume for eMMC HS400 mode"

* tag 'mmc-v5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdio: Use mmc_pre_req() / mmc_post_req()
  mmc: sdhci-of-esdhc: Don't walk device-tree on every interrupt
  mmc: mmc_spi: Allow the driver to be built when CONFIG_HAS_DMA is unset
  mmc: sdhci-msm: Add retries when all tuning phases are found valid
  mmc: sdhci-acpi: Clear amd_sdhci_host on reset

3 years agokvm x86/mmu: use KVM_REQ_MMU_SYNC to sync when needed
Lai Jiangshan [Wed, 2 Sep 2020 13:54:21 +0000 (21:54 +0800)]
kvm x86/mmu: use KVM_REQ_MMU_SYNC to sync when needed

When kvm_mmu_get_page() gets a page with unsynced children, the spt
pagetable is unsynchronized with the guest pagetable. But the
guest might not issue a "flush" operation on it when the pagetable
entry is changed from zero or other cases. The hypervisor has the
responsibility to synchronize the pagetables.

KVM behaved as above for many years, But commit 8c8560b83390
("KVM: x86/mmu: Use KVM_REQ_TLB_FLUSH_CURRENT for MMU specific flushes")
inadvertently included a line of code to change it without giving any
reason in the changelog. It is clear that the commit's intention was to
change KVM_REQ_TLB_FLUSH -> KVM_REQ_TLB_FLUSH_CURRENT, so we don't
needlessly flush other contexts; however, one of the hunks changed
a nearby KVM_REQ_MMU_SYNC instead.  This patch changes it back.

Link: https://lore.kernel.org/lkml/20200320212833.3507-26-sean.j.christopherson@intel.com/
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
Message-Id: <20200902135421.31158-1-jiangshanlai@gmail.com>
fixes: 8c8560b83390 ("KVM: x86/mmu: Use KVM_REQ_TLB_FLUSH_CURRENT for MMU specific flushes")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
3 years agoKVM: nVMX: Fix the update value of nested load IA32_PERF_GLOBAL_CTRL control
Chenyi Qiang [Fri, 28 Aug 2020 08:56:21 +0000 (16:56 +0800)]
KVM: nVMX: Fix the update value of nested load IA32_PERF_GLOBAL_CTRL control

A minor fix for the update of VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL field
in exit_ctls_high.

Fixes: 03a8871add95 ("KVM: nVMX: Expose load IA32_PERF_GLOBAL_CTRL
VM-{Entry,Exit} control")
Signed-off-by: Chenyi Qiang <chenyi.qiang@intel.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-Id: <20200828085622.8365-5-chenyi.qiang@intel.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
3 years agoKVM: fix memory leak in kvm_io_bus_unregister_dev()
Rustam Kovhaev [Mon, 7 Sep 2020 18:55:35 +0000 (11:55 -0700)]
KVM: fix memory leak in kvm_io_bus_unregister_dev()

when kmalloc() fails in kvm_io_bus_unregister_dev(), before removing
the bus, we should iterate over all other devices linked to it and call
kvm_iodevice_destructor() for them

Fixes: 90db10434b16 ("KVM: kvm_io_bus_unregister_dev() should never fail")
Cc: stable@vger.kernel.org
Reported-and-tested-by: syzbot+f196caa45793d6374707@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?extid=f196caa45793d6374707
Signed-off-by: Rustam Kovhaev <rkovhaev@gmail.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20200907185535.233114-1-rkovhaev@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
3 years agoKVM: Check the allocation of pv cpu mask
Haiwei Li [Tue, 1 Sep 2020 11:41:37 +0000 (19:41 +0800)]
KVM: Check the allocation of pv cpu mask

check the allocation of per-cpu __pv_cpu_mask. Initialize ops only when
successful.

Signed-off-by: Haiwei Li <lihaiwei@tencent.com>
Message-Id: <d59f05df-e6d3-3d31-a036-cc25a2b2f33f@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
3 years agoKVM: nVMX: Update VMCS02 when L2 PAE PDPTE updates detected
Peter Shier [Thu, 20 Aug 2020 23:05:45 +0000 (16:05 -0700)]
KVM: nVMX: Update VMCS02 when L2 PAE PDPTE updates detected

When L2 uses PAE, L0 intercepts of L2 writes to CR0/CR3/CR4 call
load_pdptrs to read the possibly updated PDPTEs from the guest
physical address referenced by CR3.  It loads them into
vcpu->arch.walk_mmu->pdptrs and sets VCPU_EXREG_PDPTR in
vcpu->arch.regs_dirty.

At the subsequent assumed reentry into L2, the mmu will call
vmx_load_mmu_pgd which calls ept_load_pdptrs. ept_load_pdptrs sees
VCPU_EXREG_PDPTR set in vcpu->arch.regs_dirty and loads
VMCS02.GUEST_PDPTRn from vcpu->arch.walk_mmu->pdptrs[]. This all works
if the L2 CRn write intercept always resumes L2.

The resume path calls vmx_check_nested_events which checks for
exceptions, MTF, and expired VMX preemption timers. If
vmx_check_nested_events finds any of these conditions pending it will
reflect the corresponding exit into L1. Live migration at this point
would also cause a missed immediate reentry into L2.

After L1 exits, vmx_vcpu_run calls vmx_register_cache_reset which
clears VCPU_EXREG_PDPTR in vcpu->arch.regs_dirty.  When L2 next
resumes, ept_load_pdptrs finds VCPU_EXREG_PDPTR clear in
vcpu->arch.regs_dirty and does not load VMCS02.GUEST_PDPTRn from
vcpu->arch.walk_mmu->pdptrs[]. prepare_vmcs02 will then load
VMCS02.GUEST_PDPTRn from vmcs12->pdptr0/1/2/3 which contain the stale
values stored at last L2 exit. A repro of this bug showed L2 entering
triple fault immediately due to the bad VMCS02.GUEST_PDPTRn values.

When L2 is in PAE paging mode add a call to ept_load_pdptrs before
leaving L2. This will update VMCS02.GUEST_PDPTRn if they are dirty in
vcpu->arch.walk_mmu->pdptrs[].

Tested:
kvm-unit-tests with new directed test: vmx_mtf_pdpte_test.
Verified that test fails without the fix.

Also ran Google internal VMM with an Ubuntu 16.04 4.4.0-83 guest running a
custom hypervisor with a 32-bit Windows XP L2 guest using PAE. Prior to fix
would repro readily. Ran 14 simultaneous L2s for 140 iterations with no
failures.

Signed-off-by: Peter Shier <pshier@google.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Message-Id: <20200820230545.2411347-1-pshier@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
3 years agoMerge tag 'kvmarm-fixes-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmar...
Paolo Bonzini [Fri, 11 Sep 2020 17:12:11 +0000 (13:12 -0400)]
Merge tag 'kvmarm-fixes-5.9-1' of git://git./linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for Linux 5.9, take #1

- Multiple stolen time fixes, with a new capability to match x86
- Fix for hugetlbfs mappings when PUD and PMD are the same level
- Fix for hugetlbfs mappings when PTE mappings are enforced
  (dirty logging, for example)
- Fix tracing output of 64bit values

3 years agoMerge tag 'drm-fixes-2020-09-11' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Fri, 11 Sep 2020 17:10:27 +0000 (10:10 -0700)]
Merge tag 'drm-fixes-2020-09-11' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Regular fixes, not much a major amount. One thing though is Laurent
  fixed some Kconfig issues, and I'm carrying the rapidio kconfig change
  so the drm one for xlnx driver works. He hadn't got a response from
  rapidio maintainers.

  Otherwise, virtio, sun4i, tve200, ingenic have some fixes, one audio
  fix for i915 and a core docs fix.

  kconfig:
   - rapidio/xlnx kconfig fix

  core:
   - Documentation fix

  i915:
   - audio regression fix

  virtio:
   - Fix double free in virtio
   - Fix virtio unblank
   - Remove output->enabled from virtio, as it should use crtc_state

  sun4i:
   - Add missing put_device in sun4i, and other fixes
   - Handle sun4i alpha on lowest plane correctly

  tv200:
   - Fix tve200 enable/disable

  ingenic
   - Small ingenic fixes"

* tag 'drm-fixes-2020-09-11' of git://anongit.freedesktop.org/drm/drm:
  drm/i915: fix regression leading to display audio probe failure on GLK
  drm: xlnx: dpsub: Fix DMADEVICES Kconfig dependency
  rapidio: Replace 'select' DMAENGINES 'with depends on'
  drm/virtio: drop virtio_gpu_output->enabled
  drm/sun4i: backend: Disable alpha on the lowest plane on the A20
  drm/sun4i: backend: Support alpha property on lowest plane
  drm/sun4i: Fix DE2 YVU handling
  drm/tve200: Stabilize enable/disable
  dma-buf: fence-chain: Document missing dma_fence_chain_init() parameter in kerneldoc
  dma-buf: Fix kerneldoc of dma_buf_set_name()
  drm/virtio: fix unblank
  Documentation: fix dma-buf.rst underline length warning
  drm/sun4i: Fix dsi dcs long write function
  drm/ingenic: Fix driver not probing when IPU port is missing
  drm/ingenic: Fix leak of device_node pointer
  drm/sun4i: add missing put_device() call in sun8i_r40_tcon_tv_set_mux()
  drm/virtio: Revert "drm/virtio: Call the right shmem helpers"

3 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Linus Torvalds [Fri, 11 Sep 2020 17:02:36 +0000 (10:02 -0700)]
Merge tag 'for-linus' of git://git./linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "A number of driver bug fixes and a few recent regressions:

   - Several bug fixes for bnxt_re. Crashing, incorrect data reported,
     and corruption on new HW

   - Memory leak and crash in rxe

   - Fix sysfs corruption in rxe if the netdev name is too long

   - Fix a crash on error unwind in the new cq_pool code

   - Fix kobject panics in rtrs by working device lifetime properly

   - Fix a data corruption bug in iser target related to misaligned
     buffers"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  IB/isert: Fix unaligned immediate-data handling
  RDMA/rtrs-srv: Set .release function for rtrs srv device during device init
  RDMA/bnxt_re: Remove set but not used variable 'qplib_ctx'
  RDMA/core: Fix reported speed and width
  RDMA/core: Fix unsafe linked list traversal after failing to allocate CQ
  RDMA/bnxt_re: Remove the qp from list only if the qp destroy succeeds
  RDMA/bnxt_re: Fix driver crash on unaligned PSN entry address
  RDMA/bnxt_re: Restrict the max_gids to 256
  RDMA/bnxt_re: Static NQ depth allocation
  RDMA/bnxt_re: Fix the qp table indexing
  RDMA/bnxt_re: Do not report transparent vlan from QP1
  RDMA/mlx4: Read pkey table length instead of hardcoded value
  RDMA/rxe: Fix panic when calling kmem_cache_create()
  RDMA/rxe: Fix memleak in rxe_mem_init_user
  RDMA/rxe: Fix the parent sysfs read when the interface has 15 chars
  RDMA/rtrs-srv: Replace device_register with device_initialize and device_add

3 years agogcov: add support for GCC 10.1
Peter Oberparleiter [Thu, 10 Sep 2020 12:52:01 +0000 (14:52 +0200)]
gcov: add support for GCC 10.1

Using gcov to collect coverage data for kernels compiled with GCC 10.1
causes random malfunctions and kernel crashes.  This is the result of a
changed GCOV_COUNTERS value in GCC 10.1 that causes a mismatch between
the layout of the gcov_info structure created by GCC profiling code and
the related structure used by the kernel.

Fix this by updating the in-kernel GCOV_COUNTERS value.  Also re-enable
config GCOV_KERNEL for use with GCC 10.

Reported-by: Colin Ian King <colin.king@canonical.com>
Reported-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Tested-by: Leon Romanovsky <leonro@nvidia.com>
Tested-and-Acked-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agoMerge branch 'powercap'
Rafael J. Wysocki [Fri, 11 Sep 2020 14:46:01 +0000 (16:46 +0200)]
Merge branch 'powercap'

* powercap:
  powercap: make documentation reflect code
  powercap/intel_rapl: add support for AlderLake
  powercap/intel_rapl: add support for RocketLake
  powercap/intel_rapl: add support for TigerLake Desktop

3 years agoMerge tag 'drm-misc-fixes-2020-09-09' of git://anongit.freedesktop.org/drm/drm-misc...
Dave Airlie [Thu, 10 Sep 2020 23:48:43 +0000 (09:48 +1000)]
Merge tag 'drm-misc-fixes-2020-09-09' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

drm-misc-fixes for v5.9-rc5:
- Fix double free in virtio.
- Add missing put_device in sun4i, and other fixes.
- Small ingenic fixes.
- Handle sun4i alpha on lowest plane correctly.
- Remove output->enabled from virtio, as it should use crtc_state.
- Fix tve200 enable/disable.
- Documentation fix.
- Fix virtio unblank.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/478b49d1-b1b3-c983-7056-8a89249be435@mblankhorst.nl
3 years agoMerge tag 'drm-intel-fixes-2020-09-10' of git://anongit.freedesktop.org/drm/drm-intel...
Dave Airlie [Thu, 10 Sep 2020 23:45:51 +0000 (09:45 +1000)]
Merge tag 'drm-intel-fixes-2020-09-10' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

drm/i915 fixes for v5.9-rc5:
- Fix regression leading to audio probe failure

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/875z8m2hss.fsf@intel.com
3 years agoMerge tag 'f2fs-for-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk...
Linus Torvalds [Thu, 10 Sep 2020 20:12:46 +0000 (13:12 -0700)]
Merge tag 'f2fs-for-5.9-rc5' of git://git./linux/kernel/git/jaegeuk/f2fs

Pull f2fs fixes from Jaegeuk Kim:
 "Small bug fixes for:

   - SMR drive fix

   - infinite loop when building free node ids

   - EOF at DIO read"

* tag 'f2fs-for-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs:
  f2fs: Return EOF on unaligned end of file DIO read
  f2fs: fix indefinite loop scanning for free nid
  f2fs: Fix type of section block count variables

3 years agopowercap: make documentation reflect code
Amit Kucheria [Thu, 10 Sep 2020 10:27:46 +0000 (15:57 +0530)]
powercap: make documentation reflect code

Fix up the documentation of the struct powercap_control_type members
to match the code.

Also fixup stray whitespace.

Signed-off-by: Amit Kucheria <amitk@kernel.org>
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
3 years agoPM: <linux/device.h>: fix @em_pd kernel-doc warning
Randy Dunlap [Mon, 7 Sep 2020 03:42:52 +0000 (20:42 -0700)]
PM: <linux/device.h>: fix @em_pd kernel-doc warning

Fix kernel-doc warning in <linux/device.h>:

../include/linux/device.h:613: warning: Function parameter or member 'em_pd' not described in 'device'

Fixes: 1bc138c62295 ("PM / EM: add support for other devices than CPUs in Energy Model")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
3 years agopowercap/intel_rapl: add support for AlderLake
Zhang Rui [Thu, 10 Sep 2020 07:49:21 +0000 (15:49 +0800)]
powercap/intel_rapl: add support for AlderLake

Add intel_rapl support for the AlderLake platform.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
3 years agopowercap/intel_rapl: add support for RocketLake
Zhang Rui [Thu, 10 Sep 2020 07:49:11 +0000 (15:49 +0800)]
powercap/intel_rapl: add support for RocketLake

Add intel_rapl support for the RocketLake platform.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
3 years agopowercap/intel_rapl: add support for TigerLake Desktop
Zhang Rui [Thu, 10 Sep 2020 07:48:58 +0000 (15:48 +0800)]
powercap/intel_rapl: add support for TigerLake Desktop

Add intel_rapl support for the TigerLake desktop platform.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
3 years agoRevert "dyndbg: accept query terms like file=bar and module=foo"
Greg Kroah-Hartman [Thu, 10 Sep 2020 16:45:03 +0000 (18:45 +0200)]
Revert "dyndbg: accept query terms like file=bar and module=foo"

This reverts commit 14775b04964264189caa4a0862eac05dab8c0502 as there
were still some parsing problems with it, and the follow-on patch for
it.

Let's revisit it later, just drop it for now.

Cc: <jbaron@akamai.com>
Cc: Jim Cromie <jim.cromie@gmail.com>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: 14775b049642 ("dyndbg: accept query terms like file=bar and module=foo")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agoRevert "dyndbg: fix problem parsing format="foo bar""
Greg Kroah-Hartman [Thu, 10 Sep 2020 16:42:38 +0000 (18:42 +0200)]
Revert "dyndbg: fix problem parsing format="foo bar""

This reverts commit 42f07816ac0cc797928119cc039c414ae2b95d34 as it
still causes problems.  It will be resolved later, let's revert it so we
can also revert the original patch this was supposed to be helping with.

Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Fixes: 42f07816ac0c ("dyndbg: fix problem parsing format="foo bar"")
Cc: Jim Cromie <jim.cromie@gmail.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agotest_firmware: Test platform fw loading on non-EFI systems
Kees Cook [Wed, 9 Sep 2020 22:53:54 +0000 (15:53 -0700)]
test_firmware: Test platform fw loading on non-EFI systems

On non-EFI systems, it wasn't possible to test the platform firmware
loader because it will have never set "checked_fw" during __init.
Instead, allow the test code to override this check. Additionally split
the declarations into a private symbol namespace so there is greater
enforcement of the symbol visibility.

Fixes: 548193cba2a7 ("test_firmware: add support for firmware_request_platform")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20200909225354.3118328-1-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agoMerge tag 'nvme-5.9-2020-09-10' of git://git.infradead.org/nvme into block-5.9
Jens Axboe [Thu, 10 Sep 2020 13:12:22 +0000 (07:12 -0600)]
Merge tag 'nvme-5.9-2020-09-10' of git://git.infradead.org/nvme into block-5.9

Pull NVMe fixes from Christoph.

"nvme fixes for 5.9

 - cancel async events before freeing them (David Milburn)
 - revert a broken race fix (James Smart)
 - fix command processing during resets (Sagi Grimberg)"

* tag 'nvme-5.9-2020-09-10' of git://git.infradead.org/nvme:
  nvme-fabrics: allow to queue requests for live queues
  nvme-tcp: cancel async events before freeing event struct
  nvme-rdma: cancel async events before freeing event struct
  nvme-fc: cancel async events before freeing event struct
  nvme: Revert: Fix controller creation races with teardown flow

3 years agoMerge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Linus Torvalds [Thu, 10 Sep 2020 02:46:22 +0000 (19:46 -0700)]
Merge branch 'linus' of git://git./linux/kernel/git/herbert/crypto-2.6

Pull crypto fix from Herbert Xu:
 "This fixes a regression in padata"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  padata: fix possible padata_works_lock deadlock

3 years agoarm64: dts: ns2: Fixed QSPI compatible string
Florian Fainelli [Wed, 26 Aug 2020 23:49:19 +0000 (16:49 -0700)]
arm64: dts: ns2: Fixed QSPI compatible string

The string was incorrectly defined before from least to most specific,
swap the compatible strings accordingly.

Fixes: ff73917d38a6 ("ARM64: dts: Add QSPI Device Tree node for NS2")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
3 years agoARM: dts: BCM5301X: Fixed QSPI compatible string
Florian Fainelli [Wed, 26 Aug 2020 23:45:29 +0000 (16:45 -0700)]
ARM: dts: BCM5301X: Fixed QSPI compatible string

The string was incorrectly defined before from least to most
specific, swap the compatible strings accordingly.

Fixes: 1c8f40650723 ("ARM: dts: BCM5301X: convert to iProc QSPI")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
3 years agoARM: dts: NSP: Fixed QSPI compatible string
Florian Fainelli [Wed, 26 Aug 2020 23:44:25 +0000 (16:44 -0700)]
ARM: dts: NSP: Fixed QSPI compatible string

The string was incorrectly defined before from least to most
specific, swap the compatible strings accordingly.

Fixes: 329f98c1974e ("ARM: dts: NSP: Add QSPI nodes to NSPI and bcm958625k DTSes")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
3 years agoARM: dts: bcm: HR2: Fixed QSPI compatible string
Florian Fainelli [Wed, 26 Aug 2020 23:43:41 +0000 (16:43 -0700)]
ARM: dts: bcm: HR2: Fixed QSPI compatible string

The string was incorrectly defined before from least to most specific,
swap the compatible strings accordingly.

Fixes: b9099ec754b5 ("ARM: dts: Add Broadcom Hurricane 2 DTS include file")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
3 years agodt-bindings: spi: Fix spi-bcm-qspi compatible ordering
Florian Fainelli [Wed, 26 Aug 2020 23:40:13 +0000 (16:40 -0700)]
dt-bindings: spi: Fix spi-bcm-qspi compatible ordering

The binding is currently incorrectly defining the compatible strings
from least specifice to most specific instead of the converse. Re-order
them from most specific (left) to least specific (right) and fix the
examples as well.

Fixes: 5fc78f4c842a ("spi: Broadcom BRCMSTB, NSP, NS2 SoC bindings")
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
3 years agoMerge tag 'nfs-for-5.9-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Linus Torvalds [Wed, 9 Sep 2020 18:14:20 +0000 (11:14 -0700)]
Merge tag 'nfs-for-5.9-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:

 - Fix an NFS/RDMA resource leak

 - Fix the error handling during delegation recall

 - NFSv4.0 needs to return the delegation on a zero-stateid SETATTR

 - Stop printk reading past end of string

* tag 'nfs-for-5.9-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  SUNRPC: stop printk reading past end of string
  NFS: Zero-stateid SETATTR should first return delegation
  NFSv4.1 handle ERR_DELAY error reclaiming locking state on delegation recall
  xprtrdma: Release in-flight MRs on disconnect