When migration vm range is hole at cpu side(MIGRATE_PFN_MIGRATE set +
MIGRATE_PFN_VALID unset) driver still allocates device pages. There is no
dma map of src pages and migration. j is 0 and svm_migrate_copy_memory_gart()
will return an uninitialized r. That can trigger out_free_vram_pages to drop
all VRAM just set up.
Initialize r and only call the last svm_migrate_copy_memory_gart if j > 0.
Current code postponed the last page to the final copy. This patch flushes on
the last page when reach to the end of current drm_buddy_block; avoids another
svm_migrate_copy_memory_gart.
Cc: stable@vger.kernel.org
Signed-off-by: Xiaogang Chen <xiaogang.chen@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
If page migration from device to sys ram fails for some reasons driver needs
release and unlock allocated system pages. To do that driver should use page
physical address, or pfn, then get struct page*. Current driver uses dma
address(for adev) that is not correct with IOMMU enabled, or even in general.
The patch releases and unlocks allocated system pages based on where migration
failed by struct page* of sys ram pages. Also dma_unmap correspodent system
ram pages at error path.
Cc: stable@vger.kernel.org
Signed-off-by: Xiaogang Chen <xiaogang.chen@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This should help diagnose HPD IRQ related issues in the future.
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Link: https://patch.msgid.link/20260821215059.312868-2-timur.kristof@gmail.com
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
After a refactor that landed in Linux 7.0,
DC now crashes when it is initialized on GPUs
that have a VGA or LVDS connector. This is because
these connectors have no HPD so the hpd_gpio is NULL
and therefore DC takes the code path meant for
DCN 4.2+ which sets irq_source_hpd = 255 that
causes the subsequent code to try to register
the HPD interrupt, which fails, and causes
a crash.
This commit should be backported to Linux 7.0 and newer.
Cc: stable@vger.kernel.org
Cc: Dmytro Laktyushkin <dmytro.laktyushkin@amd.com>
Cc: Roman Li <roman.li@amd.com>
Closes: https://gitlab.freedesktop.org/drm/amd/-/work_items/5490
Fixes: def3488eb0 ("drm/amd/display: refactor HPD to increase flexibility")
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Link: https://patch.msgid.link/20260821215059.312868-1-timur.kristof@gmail.com
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
adev->isolation[] has one slot per partition, but a ring that is not
assigned to one keeps AMDGPU_XCP_NO_PARTITION, which is ~0, so indexing
the array with it is out of bounds. SDMA submissions hit this on both
the isolation enforcement and the VM flush path and trip UBSAN.
Fall back to the first slot the way the cleaner shader path already
does, and stop taking the address before the ring type check that makes
it relevant.
Cc: stable@vger.kernel.org
Signed-off-by: Xiang Liu <xiang.liu@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
KFD_IOC_ALLOC_MEMORY_OF_GPU with flag
KFD_IOC_ALLOC_MEM_FLAGS_AQL_QUEUE_MEM and size=1 triggers the AQL
wraparound workaround (size >>= 1), reducing size to 0. The resulting
zero passes through PAGE_ALIGN(0) = 0 without validation, bypassing the
per-process VRAM quota check in reserve_mem_limit()
(vram_used + 0 > vram_available is always false).
The fix adds post-halving zero-size validation in the primary
allocation path (amdgpu_amdkfd_gpuvm.c). The check happens after size
halving but before reserve_mem_limit(), and uses err_alignment_size
error path to properly clean up the allocated kgd_mem structure and
mutex.
Cc: stable@vger.kernel.org
Signed-off-by: Sunday Clement <Sunday.Clement@amd.com>
Reviewed-by: Alex Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The largest frame is 20 dwords, so 0xf mask is too small.
This was always wrong, but we were lucky with the VCE_CMD_END
commands inserted after fence and vm_flush.
Fixes: 8897ea8c76 ("drm/amdgpu: Implement insert_end for VCE 3")
Cc: stable@vger.kernel.org
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: David Rosca <david.rosca@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Port changes from GFX9 to GFX12.1 mostly as-is.
Minor changes to register access code.
Assisted-by: Claude:Sonnet 4.6
Signed-off-by: David Belanger <david.belanger@amd.com>
Reviewed-by: Sreekant Somasekharan <Sreekant.Somasekharan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Port changes from GFX9 to GFX12 mostly as-is.
Minor changes to register access code.
Assisted-by: Claude:Sonnet-4-6
Signed-off-by: David Belanger <david.belanger@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Sreekant Somasekharan <Sreekant.Somasekharan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Port changes from GFX9 to GFX11 mostly as-is.
Minor changes to register access code.
Assisted-by: Claude:Sonnet-4-6
Signed-off-by: David Belanger <david.belanger@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Sreekant Somasekharan <Sreekant.Somasekharan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
uvd_v7_0_sw_init() does not initialize the UVD decode ring for an
SR-IOV VF. However, amdgpu_uvd_resume() unconditionally force-completes
the decode ring when restoring its fence sequence.
Skip fence completion when the fence driver is not initialized.
Fixes: 0a33b11d26 ("drm/amdgpu: mark force completed fences with -ECANCELED")
Cc: stable@vger.kernel.org
Signed-off-by: Bob Zhou <bobzhou2@amd.com>
Acked-by: Leo Liu <leo.liu@amd.com>
Acked-by: Frank Min <Frank.Min@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
On resume, amdgpu_userq_vm_validate_and_restore_queue() updates each queue's
wptr GPU address via amdgpu_bo_gpu_offset().
WPTR BOs are VM-mapped, but each BO has its own reservation object and is not
implicitly covered by the VM validation path here. This can leave offset reads
without proper BO locking/placement state and trigger WARN_ONs.
------------[ cut here ]------------
WARNING: amdgpu_object.c:1486 at amdgpu_bo_gpu_offset+0x75/0xa0 [amdgpu], CPU#3: kworker/3:1/116
Workqueue: events amdgpu_userq_restore_worker [amdgpu]
RIP: 0010:amdgpu_bo_gpu_offset+0x75/0xa0 [amdgpu]
Call Trace:
<TASK>
amdgpu_userq_vm_validate_and_restore_queue+0x629/0x960 [amdgpu]
amdgpu_userq_restore_worker+0xa6/0x180 [amdgpu]
process_scheduled_works+0xa6/0x460
worker_thread+0x13c/0x290
kthread+0xfb/0x140
ret_from_fork+0x1b6/0x2b0
ret_from_fork_asm+0x1a/0x30
</TASK>
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: amdgpu_object.c:1485 at amdgpu_bo_gpu_offset+0x9a/0xa0 [amdgpu], CPU#2: kworker/2:1/127
Workqueue: events amdgpu_userq_restore_worker [amdgpu]
RIP: 0010:amdgpu_bo_gpu_offset+0x9a/0xa0 [amdgpu]
Add each queue's WPTR BO to the drm_exec ww context and validate it to its
allowed placement before the later offset update.
v2:
- Clarify that WPTR BOs are VM-mapped (fix incorrect "not part of VM" wording). (Christian)
- Describe both parts of the fix: lock BO reservations in drm_exec and
validate BO placement before offset reads.
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Changes for v7.3
Bindings:
- Added Shikra support
- Document a840, a704, a722
Core:
- Use drm_client buffers for fbdev emulation
- teardown fixes
- ARM32 DMA fixup
- Remove objects from evict list when re-validated
- Bunch of corner case and error path fixes
DPU:
- Dropped dev_pm_opp_set_rate(0) preventing burnout
- Fixed SSPP offsets of Kaanapali
DP:
- Dropped dev_pm_opp_set_rate(0) preventing burnout
- Cleaned up core code in preparation for MST support
- Fixed prepare() to let Pipewire continue in case of the unplugged cable
GPU:
- Add support for a704
- Add support for a722
HDMI:
- Simplifed register access
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <rob.clark@oss.qualcomm.com>
Link: https://patch.msgid.link/CACSVV02Kp=J+w_RjEJbBbQnBYRb+SWdwMvVbCaAL70bq9EBagQ@mail.gmail.com
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Merge tag 'drm-misc-next-fixes-2026-08-20' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
One patch to remove a WARN in favour of drm_warn.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://patch.msgid.link/20260820-fabulous-nimble-woodpecker-ffa695@houat
igt@xe_wedged@wedged-at-any-timeout wedges the device in mode 2
(UPON_ANY_HANG_NO_RESET) and then rebinds the driver. During unbind,
a GSC proxy kernel submission can still time out; with the device wedged
and the GuC CT stopped it can never complete, so its kernel job times out.
Tile0: GT1: Kernel-submitted job timed out
WARNING: drivers/gpu/drm/xe/xe_guc_submit.c:...
at guc_exec_queue_timedout_job()
Workqueue: gt-ordered-wq drm_sched_job_timedout
Killed queues skip guc_submit_hint_wedged(), leaving 'wedged' false even
though the device is already wedged. The timeout handler then treats the
kernel queue timeout as unexpected and taints the kernel.
Honour an already-wedged device even for killed queues so the expected
teardown timeout no longer trips the WARN.
Fixes: 5a2f117a80 ("drm/xe: Do not wedge device on killed exec queues")
Cc: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Nitin Gote <nitin.r.gote@intel.com>
Reviewed-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
Link: https://patch.msgid.link/20260814074106.92670-2-nitin.r.gote@intel.com
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
(cherry picked from commit a1c1dbd0f0)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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BackMerge tag 'v7.2' into drm-next
Linux 7.2
There was a lot of conflicts this round between fixes and next,
and I'd like to get the merge resolutions that we have in drm-tip.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Unlike the CRTC degamma path, which is guarded by
amdgpu_dm_verify_lut_sizes(), the per-plane degamma LUT size was never
validated before use. __set_dm_plane_degamma() passed the user-supplied
size straight into __is_lut_linear() and, for a non-linear LUT, into
__set_input_tf() -> __drm_lut_to_dc_gamma(), the latter always iterating
MAX_COLOR_LUT_ENTRIES entries regardless of the actual LUT size.
A malformed AMD_PLANE_DEGAMMA_LUT blob (e.g. a single entry) could thus
trigger a divide-by-zero in __is_lut_linear() or an out-of-bounds read in
__drm_lut_to_dc_gamma(). Reject any plane degamma LUT whose size does not
match MAX_COLOR_LUT_ENTRIES, mirroring the invariant the code already
asserts a few lines below (and which the CRTC path enforces).
The AMD_PLANE_DEGAMMA_LUT property is only exposed on builds with
AMD_PRIVATE_COLOR defined.
Fixes: 980f871007 ("drm/amd/display: add plane degamma TF and LUT support")
Cc: stable@vger.kernel.org
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
__is_lut_linear() computes the expected value of each entry with
expected = i * MAX_DRM_LUT_VALUE / (size - 1);
If it is ever called with a single-entry LUT, size - 1 is zero and the
kernel takes a divide error (#DE). A LUT with fewer than two entries
cannot describe a linear mapping anyway, so return false early instead
of dividing by zero.
Fixes: 086247a4b2 ("drm/amd/display: Use 4096 lut entries")
Cc: stable@vger.kernel.org
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
If we end up emitting a VM fence keep pipeline sync
associated with that fence. If not, emit them as
part of the IB fence.
v2: fix need_pipe_sync handling
v3: simplify the function
Cc: David Rosca <david.rosca@amd.com>
Fixes: cb1e657cca ("drm/amdgpu: handle GDS and SPM without a VM fence")
Reviewed-by: David Rosca <david.rosca@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
If the supplied msg[2] (num_buffers) is 0x3FFFFFFF, the expression
6 + num_buffers * 4 wraps to 2 and the bounds check passes, letting
the parser loop far past the end of the message BO. Triggering it
additionally requires a ~4GiB mapping so that msg[1] survives the
earlier "header does not fit in BO" check.
Rewrite the test in division form, which is overflow-free by
construction. Also update the message to reflect that msg is invalid.
Fixes: b193019860 ("drm/amdgpu/vcn3: Prevent OOB reads when parsing dec msg")
Fixes: 0a78f2bac1 ("drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg")
Cc: stable@vger.kernel.org
Signed-off-by: David (Ming Qiang) Wu <David.Wu3@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The Apple iMac11,1 (27-inch, Late 2009) uses a Mobility Radeon HD 4850
(RV770/DCE3.1) with a 2560x1440 internal panel on an internal
DisplayPort path. Without this fix the display stays dark under KMS.
This machine suffers from the same issue as iMac10,1 and iMac11,2:
Apple routes the internal display through Link B of the DIG encoder
instead of Link A. Add iMac11,1 to the existing DMI quirk and move
the Apple-specific encoder assignment into its own block, independent
of the DCE version check.
Additionally, the 2560x1440 panel requires RADEON_PLL_USE_FRAC_FB_DIV
and ATOM_ENCODER_CMD_DP_VIDEO_ON, limited to iMac11,1 via dmi_match()
to avoid affecting other boards.
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Gilles Risch <gilles.risch@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
When a queue is hung, the hang_detect_work is the
only way to recover it. However in amdgpu_userq_destroy(),
the hang_detect_work is cancelled too early,
resulting in amdgpu_userq_wait_for_last_fence()
may never return, leaving an uninterruptible dma_fence_wait()
hang there.
To fix this problem, this commit moves the cancelling of
hang_detect_work after amdgpu_userq_wait_for_last_fence(), and it has
to be before the unmap helper, because hang_detect_work resets the
queue, so it races with amdgpu_userq_unmap_helper() for MES operations
and queue state.
This commit splits amdgpu_userq_cleanup() into two parts:
1) amdgpu_userq_detach_doorbell(), which detaches the queue from
userq_doorbell_xa. This has to be called before the cancel, otherwise
the IRQ handlers (for example amdgpu_userq_process_fence_irq)
can re-schedule the hang_detect_work and the cancel is not final.
2) amdgpu_userq_fence_driver_free(), this has to be called after the
unmap helper, because it can release the seq64 slot that the GPU
writes fence values to.
Only one cancel_delayed_work_sync(&queue->hang_detect_work) is needed,
so other redundancies are removed.
Signed-off-by: Zhu Lingshan <lingshan.zhu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
profile_lock_device() may return negive error code,
so the type of the return value should be int,
not uint32
Signed-off-by: Zhu Lingshan <lingshan.zhu@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
When amdgpu_init_minimal_xgmi is used, SDMA engines init
is delayed so amdgpu_ttm_enable_buffer_funcs must be
called later.
Without this, the check for num_buffer_funcs_scheds will
fail and using ttm buffer funcs later will fail.
Given that amdgpu_ttm_enable_buffer_funcs is a no-op if
amdgpu_in_reset() returns true, the call has to occur
after the reset lock is dropped.
Cc: stable@vger.kernel.org
Fixes: e4029f7a94 ("drm/amdgpu: only use working sdma schedulers for ttm")
Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Introduce a helper to consolidate the vga_switcheroo registration condition
used by the init and fini paths.
Keep the explicit pci_is_thunderbolt_attached() check, as dev_is_removable()
does not provide equivalent coverage for Thunderbolt-attached GPUs.
This ensures such devices remain excluded from switcheroo registration while
preserving the existing PX and Apple gmux handling.
Cc: stable@vger.kernel.org
Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Like the MES scheduler ring, the KIQ ring sets no_scheduler = true and uses a
polling fence, so it is skipped by the force-completion loop in
amdgpu_device_pre_asic_reset(). Its hw fence value lives in wb (GTT) memory and
survives a MODE1 reset while fence_drv.sync_seq keeps advancing, so after a
reset the first KIQ submission can poll forever on a seq that is never written
back.
Force complete the KIQ ring fences too so their hw fence is realigned to
sync_seq.
Cc: stable@vger.kernel.org
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
rptr and wptr of a userq are 8 bytes aligned, and may
not placed on a page boundary.
This commit checks whether rptr and wptr are 8 bytes
aligned, and expectes 8 bytes when validates rptr/wptr VA.
With above changes, this commit fixes an regression
in amdgpu_userq_input_va_validate, where
end_addr is caculated by:
check_add_overflow(start_addr, expected_size - 1, &end_addr).
Wptr and rptr are very likely not to be page aligned,
when validating rptr and wptr, if they are located in the last
mapped page(or only one page is mapped)
and expected_size is PAGE_SIZE, end_addr will exceed the last
mapped page, means (end_addr >> AMDGPU_GPU_PAGE_SHIFT) > va_map->last,
and causing an -EINVAL, even it is a valid VA.
Signed-off-by: Zhu Lingshan <lingshan.zhu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Fixes: c0122bf2cc ("drm/amdgpu: fix userq VA validation for sub-page buffers")
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The MES scheduler ring has no drm scheduler (no_scheduler = true), so it is
skipped by the force-completion loop in amdgpu_device_pre_asic_reset(). It uses
a polling fence whose hw value lives in wb (GTT) memory and survives a MODE1
reset, while fence_drv.sync_seq keeps advancing for every packet.
When the reset is triggered because MES itself stopped responding, the
timed-out packets advance sync_seq past the last hw fence value MES wrote.
After resume the first MES submission polls forever on a seq that is never
written back, failing the resume and wedging the box on a second reset:
amdgpu: MES ring buffer is full.
amdgpu: *ERROR* ring gfx_0.0.0 test failed (-110)
amdgpu: resume of IP block <gfx_v11_0> failed -110
amdgpu: GPU reset end with ret = -110
Force complete the MES scheduler ring fences together with the scheduler rings
so their hw fence is realigned to sync_seq.
v2: cover all XCCs (one scheduler ring each), not just mes.ring[0].
Cc: stable@vger.kernel.org
Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
In standalone mode the ip_discovery sysfs tree is built from a verbatim
copy of the discovery binary taken before reg_base_init() collapses the
64bit base addresses in place. Decoding as 32bit there yields interleaved
zeros. Decode base_address_64[] in that case; keep reading the already
collapsed adev->discovery.bin as-is otherwise.
Fixes: 402e04f11f ("drm/amdgpu: Export ip_discovery sysfs on probe failure")
Cc: stable@vger.kernel.org
Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Custom brightness curves use an 8-bit input signal. After exporting the
full PWM range to userspace, the curve normalizer still divides requests
by the physical PWM span. On panels with a nonzero minimum PWM level,
this can produce a curve input greater than 255 and send an invalid
backlight level to DC.
Scale the userspace [0..max] range to the curve's [0..255] range
instead. This retains the full advertised range and keeps the reverse
readback conversion unchanged.
Fixes: 8dbd72cb79 ("drm/amd/display: Export full brightness range to userspace")
Cc: stable@vger.kernel.org
Signed-off-by: Akhmed Zhitaev <zhitaevakh@gmail.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
(Move to amdgpu_dm_backlight.c)
Link: https://patch.msgid.link/20260813170959.22073-1-zhitaevakh@gmail.com
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
amdgpu_userq_wait_return_fence_info() calls drm_exec_init() without
DRM_EXEC_IGNORE_DUPLICATES. When the same GEM object appears more than
once across the read/write BO handle lists submitted by userspace,
drm_exec_lock_obj() returns -EALREADY the second time it locks that
object, which aborts the fence resolution pass instead of treating the
repeat as a no-op.
Add DRM_EXEC_IGNORE_DUPLICATES so duplicate objects are silently
skipped on the second lock attempt.
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
amdgpu_userq_wait_count_fences() calls drm_exec_init() without
DRM_EXEC_IGNORE_DUPLICATES. When the same GEM object appears more than
once across the read/write BO handle lists submitted by userspace,
drm_exec_lock_obj() returns -EALREADY the second time it locks that
object, which aborts the fence-counting pass instead of treating the
repeat as a no-op.
Add DRM_EXEC_IGNORE_DUPLICATES so duplicate objects are silently
skipped on the second lock attempt.
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
amdgpu_userq_signal_ioctl() calls drm_exec_init() without
DRM_EXEC_IGNORE_DUPLICATES. When the same GEM object appears more than
once across the read/write BO handle lists submitted by userspace,
drm_exec_lock_obj() returns -EALREADY the second time it locks that
object, which aborts the ioctl instead of treating the repeat as a
no-op.
Add DRM_EXEC_IGNORE_DUPLICATES so duplicate objects are silently
skipped on the second lock attempt, matching the intended semantics of
locking a set of (possibly overlapping) BOs before publishing a fence
on them.
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
amdgpu_userq_buffer_vas_mapped() checks whether all VAs
of a queue are mapped before restoring it.
So that HW won't access any invalid addresses.
Currently, this function assumes all VAs are mapped if
any VA of a queue has been mapped, which is wrong.
This commit fixes this problem by examining all VAs of
a queue and reporting false if any of them is not mapped.
Signed-off-by: Zhu Lingshan <lingshan.zhu@amd.com>
Reviewed-by: Sunil Khatri <sunil.khatri@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
amdgpu_pci_probe() calls pm_runtime_use_autosuspend(), but
amdgpu_pci_remove() does not call the matching
pm_runtime_dont_use_autosuspend().
If the autosuspend delay is set to a negative value while autosuspend
is enabled, the runtime PM core increments usage_count to prevent
runtime suspend. Without calling pm_runtime_dont_use_autosuspend()
during teardown, this reference is not dropped and usage_count remains
unbalanced.
The documentation for pm_runtime_use_autosuspend() also notes that it
is important to undo it with pm_runtime_dont_use_autosuspend() at
driver exit time, unless runtime PM was initially enabled with
devm_pm_runtime_enable().
Add the missing pm_runtime_dont_use_autosuspend() call to the remove
path.
This issue was found by manual code inspection.
Fixes: d38ceaf99e ("drm/amdgpu: add core driver (v4)")
Cc: stable@vger.kernel.org
Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Link: https://patch.msgid.link/20260808120934.2813010-1-lgs201920130244@gmail.com
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
pci_is_thunderbolt_attached() requires an upstream PCI bridge with
is_thunderbolt set from an Intel Thunderbolt VSEC. This does not cover
the affected ASM4242 USB4 PCI hierarchy:
00:02.2
\- 0f:00.0 [1b21:2421]
+- 10:01.0 [1b21:2423] -> 45:00.0 -> 46:00.0
| -> 47:00.0 -> 48:00.0 -> 49:00.0 [1002:7590]
\- 10:03.0 -> 76:00.0 [1b21:2425] USB4 Host Router
The host router is outside the GPU upstream bridge chain, leaving no
ancestor with is_thunderbolt set. PCI core propagates DEVICE_REMOVABLE
below the external-facing PCIe tunnel. Disable Runtime PM when either
pci_is_thunderbolt_attached() or dev_is_removable() is true.
Cc: stable@vger.kernel.org
Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Candice Li <candice.li@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This is supposed to print the error code but there is a copy and
paste bug so it prints "bo" instead of "err".
Fixes: dd08ebf6c3 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Link: https://patch.msgid.link/an1tu0z3T-qX1ogn@stanley.mountain
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit 28a4198c52)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
time so that it receives the proper lag compensation
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Merge tag 'sched_urgent_for_v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Borislav Petkov:
- Make sure a delayed sched entity's runtime stats are updated at the
right time so that it receives the proper lag compensation
* tag 'sched_urgent_for_v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched: Update time before requeueing delayed entities
fallback to the physical one instead
- Fix a build error with ARM rpc_defconfig and function tracer enabled
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Merge tag 'timers_urgent_for_v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Borislav Petkov:
- Detect a broken EL2 virtual timer in the bcm2712 SoC boards (RPi5)
and fallback to the physical one instead
- Fix a build error with ARM rpc_defconfig and function tracer enabled
* tag 'timers_urgent_for_v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource/drivers/arm_arch_timer: Workaround bcm2712 broken EL2 virtual timer
tick: Include ktime.h and jiffies.h in linux/tick.h
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Merge tag 'core_urgent_for_v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull rseq fix from Borislav Petkov:
- Prevent a lockup when rseq grants a timeslice extension
* tag 'core_urgent_for_v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
rseq: Prevent hard lockup on granted time slice extension
Split mt7921_mcu_regd_update() into two functions to prevent recursive
mutex acquisition. Introduce __mt7921_mcu_regd_update() as the internal
implementation that assumes the mutex is already held by the caller,
while mt7921_mcu_regd_update() remains as the external interface that
handles mutex acquisition and release.
This fixes a deadlock issue when mt7921_regd_set_6ghz_power_type() is
called with the device mutex already held. Without this change, calling
mt7921_mcu_regd_update() would attempt to acquire the same mutex again,
causing a recursive lock deadlock.
The __mt7921_mcu_regd_update() function can be safely called when the
caller has already acquired the device mutex, avoiding the deadlock
while maintaining proper synchronization for regulatory domain updates.
Fixes: dc2608cf5224 ("wifi: mt76: mt7921: refactor regulatory notifier flow")
Signed-off-by: Charlie-cy Wu <Charlie-cy.Wu@mediatek.com>
Tested-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>
Tested-by: Devin Wittmayer <lucid_duck@justthetip.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This reverts commit 0a4bb2abc3.
This was reported to break the touchpad on at least some Thinkpads, and
while the revert has hit the i2c tree, it hasn't hit mine. So I'm
reverting it directly just to have this resolved for the imminent 7.2
release.
Reported-by: Thorsten Leemhuis <linux@leemhuis.info>
Link: https://lore.kernel.org/all/b4a4eadb-282f-464c-843a-19d415a34d0c@leemhuis.info/
Cc: Mario Limonciello <mario.limonciello@amd.com>
CC: Hardik Prakash <hardikprakash.official@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Avoid use-after-free of an event's group leader by promoting detached
sibling events to standalone entities and correct related accounting and
state transitions
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Merge tag 'perf_urgent_for_v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Borislav Petkov:
- Prevent the use of exited events as group leaders
- Avoid use-after-free of an event's group leader by promoting detached
sibling events to standalone entities and correct related accounting
and state transitions
* tag 'perf_urgent_for_v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/core: Fix group leader use-after-free after sibling detach
perf: Reject exited events as group leaders
x86 prompted mainly by a recent finding on AMD related to INVLPGB/TYLBSYNC
invalidations. Having the command line option is simply another way to
alleviate the situation short-term
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Merge tag 'x86_urgent_for_v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Borislav Petkov:
- Add a proper kernel cmdline option to control the TLB invalidation
method on x86 prompted mainly by a recent finding on AMD related to
INVLPGB/TYLBSYNC invalidations.
Having the command line option is simply another way to alleviate
the situation short-term
* tag 'x86_urgent_for_v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/CPU: Add a tlbi= cmdline switch
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Merge tag 'block-7.2-20260815' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block fix from Jens Axboe:
"A single fix for a regression in this cycle, where drbd would leak
shared secrets over netlink. This restores the behavior to match
what we had before"
* tag 'block-7.2-20260815' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
drbd: don't leak the shared secret to unprivileged netlink dumps
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Merge tag 'io_uring-7.2-20260815' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring fix from Jens Axboe:
"Just a single fix for a potential issue on 32-bit x86 with PAE"
* tag 'io_uring-7.2-20260815' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring/rsrc: reject overflowing regvec bvec byte counts
