This reverts commit 515986100d.
The dma_buf field in struct drm_gem_object is not stable over the
object instance's lifetime. The field becomes NULL when user space
releases the final GEM handle on the buffer object. This resulted
in a NULL-pointer deref.
Workarounds in commit 5307dce878 ("drm/gem: Acquire references on
GEM handles for framebuffers") and commit f6bfc9afc7 ("drm/framebuffer:
Acquire internal references on GEM handles") only solved the problem
partially. They especially don't work for buffer objects without a DRM
framebuffer associated.
Hence, this revert to going back to using .import_attach->dmabuf.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Simona Vetter <simona.vetter@ffwll.ch>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://lore.kernel.org/r/20250715082635.34974-1-tzimmermann@suse.de
Avoid dereferencing struct drm_gem_object.import_attach for the
imported dma-buf. The dma_buf field in the GEM object instance refers
to the same buffer. Prepares to make import_attach an implementation
detail of PRIME.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Instead of testing import_attach for imported GEM buffers, invoke
drm_gem_is_imported() to do the test.
v2:
- keep amdgpu_bo_print_info() as-is (Christian)
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
To avoid a cast when calling drm_dev_wedged_event(), replace pid and
task name inside of struct amdgpu_task_info with struct
drm_wedge_task_info.
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20250617124949.2151549-6-andrealmeid@igalia.com
Signed-off-by: André Almeida <andrealmeid@igalia.com>
The "num_syncobj_handles" is a u32 value that comes from the user via the
ioctl. On 32bit systems the "sizeof(uint32_t) * num_syncobj_handles"
multiplication can have an integer overflow. Use size_mul() to fix that.
Fixes: 38c67ec9aa ("drm/amdgpu: Add input fence to sync bo map/unmap")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
It requires unlocking the reserved gem BO before returning from
attaching the eviction fence error.
Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Encountering a taint issue during the unloading of gpu_sched
due to the fence not being released/put. In this context,
amdgpu_vm_clear_freed is responsible for creating a job to
update the page table (PT). It allocates kmem_cache for
drm_sched_fence and returns the finished fence associated
with job->base.s_fence. In case of Usermode queue this finished
fence is added to the timeline sync object through
amdgpu_gem_update_bo_mapping, which is utilized by user
space to ensure the completion of the PT update.
[ 508.900587] =============================================================================
[ 508.900605] BUG drm_sched_fence (Tainted: G N): Objects remaining in drm_sched_fence on __kmem_cache_shutdown()
[ 508.900617] -----------------------------------------------------------------------------
[ 508.900627] Slab 0xffffe0cc04548780 objects=32 used=2 fp=0xffff8ea81521f000 flags=0x17ffffc0000240(workingset|head|node=0|zone=2|lastcpupid=0x1fffff)
[ 508.900645] CPU: 3 UID: 0 PID: 2337 Comm: rmmod Tainted: G N 6.12.0+ #1
[ 508.900651] Tainted: [N]=TEST
[ 508.900653] Hardware name: Gigabyte Technology Co., Ltd. X570 AORUS ELITE/X570 AORUS ELITE, BIOS F34 06/10/2021
[ 508.900656] Call Trace:
[ 508.900659] <TASK>
[ 508.900665] dump_stack_lvl+0x70/0x90
[ 508.900674] dump_stack+0x14/0x20
[ 508.900678] slab_err+0xcb/0x110
[ 508.900687] ? srso_return_thunk+0x5/0x5f
[ 508.900692] ? try_to_grab_pending+0xd3/0x1d0
[ 508.900697] ? srso_return_thunk+0x5/0x5f
[ 508.900701] ? mutex_lock+0x17/0x50
[ 508.900708] __kmem_cache_shutdown+0x144/0x2d0
[ 508.900713] ? flush_rcu_work+0x50/0x60
[ 508.900719] kmem_cache_destroy+0x46/0x1f0
[ 508.900728] drm_sched_fence_slab_fini+0x19/0x970 [gpu_sched]
[ 508.900736] __do_sys_delete_module.constprop.0+0x184/0x320
[ 508.900744] ? srso_return_thunk+0x5/0x5f
[ 508.900747] ? debug_smp_processor_id+0x1b/0x30
[ 508.900754] __x64_sys_delete_module+0x16/0x20
[ 508.900758] x64_sys_call+0xdf/0x20d0
[ 508.900763] do_syscall_64+0x51/0x120
[ 508.900769] entry_SYSCALL_64_after_hwframe+0x76/0x7e
v2: call dma_fence_put in amdgpu_gem_va_update_vm
v3: Addressed review comments from Christian.
- calling amdgpu_gem_update_timeline_node before switch.
- puting a dma_fence in case of error or !timeline_syncobj.
v4: Addressed review comments from Christian.
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Shashank Sharma <shashank.sharma@amd.com>
Cc: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Le Ma <le.ma@amd.com>
Signed-off-by: Arvind Yadav <arvind.yadav@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
That needs to be done after grabbing the lock, not before.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Arvind Yadav <arvind.yadav@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This patch enables attachment and detachment of eviction fences.
This is just a fork of eviction fence enabling code from the first
patch of the series so that the CI testing can happen on fully
fledged code.
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian Koenig <christian.koenig@amd.com>
Reviewed-by: Christian Koenig <christian.koenig@amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Arvind Yadav <arvind.yadav@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This patch adds basic eviction fence framework for the gfx buffers.
The idea is to:
- One eviction fence is created per gfx process, at kms_open.
- This fence is attached to all the gem buffers created
by this process.
- This fence is detached to all the gem buffers at postclose_kms.
This framework will be further used for usermode queues.
V2: Addressed review comments from Christian
- keep fence_ctx and fence_seq directly in fpriv
- evcition_fence should be dynamically allocated
- do not save eviction fence instance in BO, there could be many
such fences attached to one BO
- use dma_resv_replace_fence() in detach
V3: Addressed review comments from Christian
- eviction fence create and destroy functions should be called
only once from fpriv create/destroy
- use dma_fence_put() in eviction_fence_destroy
V4: Addressed review comments from Christian:
- create a separate ev_fence_mgr structure
- cleanup fence init part
- do not add a domain for fence owner KGD
V5: Addressed review comments from Christian:
- drop the dma_fence_is_signaled check
- use a local variable to access evf_mgr->ev_fence under the
spin_lock() multiple places
- remove the vm->is_compute_ctx check to attach gfx eviction fence,
in gem_object_open
V6: Addressed review comments from Christian:
- drop the return value from eviction_fence_signal
- reserve_fence should be the first thing inside the
attach_eviction_fence function, also keep the resv_add_fence inside
the lock
- remove the unwanted ev_fence check inside detach function
- fix wrong variable check in eviction_fence_init function
- return the error value of eviction_fence_init to the caller, dont
keep it void.
- fail gem_object_open if attaching of eviction_fence fails
- detach the eviction fence only when amdgpu_vm_is_bo_always_valid
is not true.
V7: Addressed review comments from Christian:
- Do not add a uq_mgr ptr in ev_fence, rather add evf_mgr
V8: Move eviction fence enabling into separate patch for CI
Cc: Christian Koenig <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian Koenig <christian.koenig@amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Arvind Yadav <arvind.yadav@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This reverts commit 6be2ad4f00.
This patch was to block userspace to use doorbell manager UAPI
until usermode queue UAPI gets approved. UQ UAPI got approved in the
following MR:
https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/392
Cc: Christian Koenig <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This patch adds input fences to VM_IOCTL for buffer object.
The kernel will map/unmap the BO only when the fence is signaled.
The UAPI for the same has been approved here:
https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/392
V2: Bug fix (Arvind)
V3: Bug fix (Arvind)
V4: Rename UAPI objects as per UAPI review (Marek)
V5: Addressed review comemnts from Christian
- function should return error.
- Add 'TODO' comment
- The input fence should be independent of the operation.
V6: Addressed review comemnts from Christian
- Release the memory allocated by memdup_user().
V7: Addressed review comemnts from Christian
- Drop the debug print and add "return r;" for the error handling.
V11: Rebase
v12: Fix 32-bit holes issue in sturct drm_amdgpu_gem_va.
v13: Fix deadlock issue.
v14: Fix merge conflict.
v15: Fix review comment by renaming syncobj handles.
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian Koenig <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Arvind Yadav <arvind.yadav@amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This patch updates the VM_IOCTL to allow userspace to synchronize
the mapping/unmapping of a BO in the page table.
The major changes are:
- it adds a drm_timeline object as an input parameter to the VM IOCTL.
- this object is used by the kernel to sync the update of the BO in
the page table during the mapping of the object.
- the kernel also synchronizes the tlb flush of the page table entry of
this object during the unmapping (Added in this series:
https://patchwork.freedesktop.org/series/131276/ and
https://patchwork.freedesktop.org/patch/584182/)
- the userspace can wait on this timeline, and then the BO is ready to
be consumed by the GPU.
The UAPI for the same has been approved here:
https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/392
V2:
- remove the eviction fence coupling
V3:
- added the drm timeline support instead of input/output fence
(Christian)
V4:
- made timeline 64-bit (Christian)
- bug fix (Arvind)
V5: GLCTS bug fix (Arvind)
V6: Rename syncobj_handle -> timeline_syncobj_out
Rename point -> timeline_point_in (Marek)
V7: Addressed review comments from Christian:
- do not send last_update fence in case of vm_clear_freed, instead
return the fence from gen_va_update_vm
- move the functions to update bo_mapping to amdgpu_gem.c
- do not use amdgpu_userq_update_vm anymore in userq_create()
V8: Addressed review comments from Christian:
- Split amdgpu_gem_update_bo_mapping function.
- amdgpu_gem_va_update_vm should return stub for error.
V9: Addressed review comments from Christian:
- Rename the function amdgpu_gem_update_timeline_node.
- amdgpu_gem_update_timeline_node should be void function.
- when timeline_point is zero don't allocate a chain and
call drm_syncobj_replace_fence() instead of
drm_syncobj_add_point().
V11: rebase
V12: Fix 32-bit holes issue in sturct drm_amdgpu_gem_va.
V13: Fix the review comment by renaming timeline syncobj (Marek)
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Felix Kuehling <felix.kuehling@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Arvind Yadav <arvind.yadav@amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
container_of cannot return NULL, so it is unnecessary to check for
NULL after gem_to_amdgpu_bo, which is just a container_of call
Signed-off-by: Kent Russell <kent.russell@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Before, every time fdinfo is queried we try to lock all the BOs in the
VM and calculate memory usage from scratch. This works okay if the
fdinfo is rarely read and the VMs don't have a ton of BOs. If either of
these conditions is not true, we get a massive performance hit.
In this new revision, we track the BOs as they change states. This way
when the fdinfo is queried we only need to take the status lock and copy
out the usage stats with minimal impact to the runtime performance. With
this new approach however, we would no longer be able to track active
buffers.
Signed-off-by: Yunxiang Li <Yunxiang.Li@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241219151411.1150-6-Yunxiang.Li@amd.com
Signed-off-by: Christian König <christian.koenig@amd.com>
amdgpu_vm_bo_invalidate doesn't use the adev parameter and not all
callers have a reference to adev handy, so remove it for cleanliness.
Signed-off-by: Yunxiang Li <Yunxiang.Li@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241219151411.1150-5-Yunxiang.Li@amd.com
Signed-off-by: Christian König <christian.koenig@amd.com>
Instead of a TTM reference grab a GEM reference whenever necessary.
v2: fix typo in amdgpu_bo_unref pointed out by Vitaly,
initialize the GEM funcs for kernel allocations as well.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v1)
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This adds allocation latency, but aligns better with user
expectations. The latency should improve with the drm buddy
clearing patches that Arun has been working on.
In addition this fixes the high CPU spikes seen when doing
wipe on release.
v2: always set AMDGPU_GEM_CREATE_VRAM_CLEARED (Christian)
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3528
Fixes: a68c7eaa7a ("drm/amdgpu: Enable clear page functionality")
Acked-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com> (v1)
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Cc: Christian König <christian.koenig@amd.com>
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Merge v6.10-rc6 into drm-next
The exynos-next pull is based on a newer -rc than drm-next. hence
backmerge first to make sure the unrelated conflicts we accumulated
don't end up randomly in the exynos merge pull, but are separated out.
Conflicts are all benign: Adjacent changes in amdgpu and fbdev-dma
code, and cherry-pick conflict in xe.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Do not return failure for allocating GTT bo with dcc flag on gfx12.
This will improve compatibility for UMD.
Signed-off-by: Frank Min <Frank.Min@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Deal with AMDGPU_GEM_CREATE_GFX12_DCC to set DCC bit
when needed.
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This happens when the amdgpu_bo_release_notify running
before amdgpu_ttm_set_buffer_funcs_status set the buffer
funcs to enabled.
check the buffer funcs enablement before calling the fill
buffer memory.
v2:(Christian)
- Apply it only for GEM buffers and since GEM buffers are only
allocated/freed while the driver is loaded we never run into
the issue to clear with buffer funcs disabled.
v3:(Mario)
- drop the stable tag as this will presumably go into a
-fixes PR for 6.10
Log snip:
*ERROR* Trying to clear memory with ring turned off.
RIP: 0010:amdgpu_bo_release_notify+0x201/0x220 [amdgpu]
Fixes: a68c7eaa7a ("drm/amdgpu: Enable clear page functionality")
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Tested-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>
Tested-by: Richard Gong <richard.gong@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240610180401.9540-1-Arunpravin.PaneerSelvam@amd.com
Help code readability by replacing a bunch of:
bo->tbo.base.resv == vm->root.bo->tbo.base.resv
With:
amdgpu_vm_is_bo_always_valid(vm, bo)
No functional changes.
v2:
* Rename helper and move to amdgpu_vm. (Christian)
v3:
* Use Christian's kerneldoc.
v4:
* Fixed logic inversion in amdgpu_vm_bo_get_memory.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Cc: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This patch changes the handling and lifecycle of vm->task_info object.
The major changes are:
- vm->task_info is a dynamically allocated ptr now, and its uasge is
reference counted.
- introducing two new helper funcs for task_info lifecycle management
- amdgpu_vm_get_task_info: reference counts up task_info before
returning this info
- amdgpu_vm_put_task_info: reference counts down task_info
- last put to task_info() frees task_info from the vm.
This patch also does logistical changes required for existing usage
of vm->task_info.
V2: Do not block all the prints when task_info not found (Felix)
V3: Fixed review comments from Felix
- Fix wrong indentation
- No debug message for -ENOMEM
- Add NULL check for task_info
- Do not duplicate the debug messages (ti vs no ti)
- Get first reference of task_info in vm_init(), put last
in vm_fini()
V4: Fixed review comments from Felix
- fix double reference increment in create_task_info
- change amdgpu_vm_get_task_info_pasid
- additional changes in amdgpu_gem.c while porting
Cc: Christian Koenig <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
- Enable the seq64 mapping sequence.
- Fix wflinfo va conflict and other bugs.
v1:
- The seq64 area needs to be included in the AMDGPU_VA_RESERVED_SIZE
otherwise the areas will conflict with user space allocations (Alex)
- It needs to be mapped read only in the user VM (Alex)
v2:
- Instead of just one define for TOP/BOTTOM
reserved space separate them into two (Christian)
- Fix the CPU and VA calculations and while at it
also cleanup error handling and kerneldoc (Christian)
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
DMABuf imports in compute VMs are not wrapped in a kgd_mem object on the
process_info->kfd_bo_list. There is no explicit KFD API call to validate
them or add eviction fences to them.
This patch automatically validates and fences dymanic DMABuf imports when
they are added to a compute VM. Revalidation after evictions is handled
in the VM code.
v2:
* Renamed amdgpu_vm_validate_evicted_bos to amdgpu_vm_validate
* Eliminated evicted_user state, use evicted state for VM BOs and user BOs
* Fixed and simplified amdgpu_vm_fence_imports, depends on reserved BOs
* Moved dma_resv_reserve_fences for amdgpu_vm_fence_imports into
amdgpu_vm_validate, outside the vm->status_lock
* Added dummy version of amdgpu_amdkfd_bo_validate_and_fence for builds
without KFD
v4: Eliminate amdgpu_vm_fence_imports. It's not needed because the
reservation with its fences is shared with the export, as long as all
imports are from KFD, with the exports already reserved, validated and
fenced by the KFD restore worker.
v5: Reintroduced separate evicted_user state to simplify the state machine
and CS error handling when amdgpu_vm_validate is called without a ticket.
Signed-off-by: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
In cases where the # is known ahead of time, it is silly to do the table
resize dance.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Christian König <christian.koenig@amd.com>
Patchwork: https://patchwork.freedesktop.org/patch/568338/
drm-misc-next for v6.7-rc1:
UAPI Changes:
- drm_file owner is now updated during use, in the case of a drm fd
opened by the display server for a client, the correct owner is
displayed.
- Qaic gains support for the QAIC_DETACH_SLICE_BO ioctl to allow bo
recycling.
Cross-subsystem Changes:
- Disable boot logo for au1200fb, mmpfb and unexport logo helpers.
Only fbcon should manage display of logo.
- Update freescale in MAINTAINERS.
- Add some bridge files to bridge in MAINTAINERS.
- Update gma500 driver repo in MAINTAINERS to point to drm-misc.
Core Changes:
- Move size computations to drm buddy allocator.
- Make drm_atomic_helper_shutdown(NULL) a nop.
- Assorted small fixes in drm_debugfs, DP-MST payload addition error handling.
- Fix DRM_BRIDGE_ATTACH_NO_CONNECTOR handling.
- Handle bad (h/v)sync_end in EDID by clipping to htotal.
- Build GPUVM as a module.
Driver Changes:
- Simple drivers don't need to cache prepared result.
- Call drm_atomic_helper_shutdown() in shutdown/unbind for a whole lot
more drm drivers.
- Assorted small fixes in amdgpu, ssd130x, bridge/it6621, accel/qaic,
nouveau, tc358768.
- Add NV12 for komeda writeback.
- Add arbitration lost event to synopsis/dw-hdmi-cec.
- Speed up s/r in nouveau by not restoring some big bo's.
- Assorted nouveau display rework in preparation for GSP-RM,
especially related to how the modeset sequence works and
the DP sequence in relation to link training.
- Update anx7816 panel.
- Support NVSYNC and NHSYNC in tegra.
- Allow multiple power domains in simple driver.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f1fae5eb-25b8-192a-9a53-215e1184ce81@linux.intel.com
With the typical model where the display server opens the file descriptor
and then hands it over to the client(*), we were showing stale data in
debugfs.
Fix it by updating the drm_file->pid on ioctl access from a different
process.
The field is also made RCU protected to allow for lockless readers. Update
side is protected with dev->filelist_mutex.
Before:
$ cat /sys/kernel/debug/dri/0/clients
command pid dev master a uid magic
Xorg 2344 0 y y 0 0
Xorg 2344 0 n y 0 2
Xorg 2344 0 n y 0 3
Xorg 2344 0 n y 0 4
After:
$ cat /sys/kernel/debug/dri/0/clients
command tgid dev master a uid magic
Xorg 830 0 y y 0 0
xfce4-session 880 0 n y 0 1
xfwm4 943 0 n y 0 2
neverball 1095 0 n y 0 3
*)
More detailed and historically accurate description of various handover
implementation kindly provided by Emil Velikov:
"""
The traditional model, the server was the orchestrator managing the
primary device node. From the fd, to the master status and
authentication. But looking at the fd alone, this has varied across
the years.
IIRC in the DRI1 days, Xorg (libdrm really) would have a list of open
fd(s) and reuse those whenever needed, DRI2 the client was responsible
for open() themselves and with DRI3 the fd was passed to the client.
Around the inception of DRI3 and systemd-logind, the latter became
another possible orchestrator. Whereby Xorg and Wayland compositors
could ask it for the fd. For various reasons (hysterical and genuine
ones) Xorg has a fallback path going the open(), whereas Wayland
compositors are moving to solely relying on logind... some never had
fallback even.
Over the past few years, more projects have emerged which provide
functionality similar (be that on API level, Dbus, or otherwise) to
systemd-logind.
"""
v2:
* Fixed typo in commit text and added a fine historical explanation
from Emil.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Tested-by: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230621094824.2348732-1-tvrtko.ursulin@linux.intel.com
Signed-off-by: Christian König <christian.koenig@amd.com>
Merge all developer debug options available as separated module
parameters in one, making it obvious that are for developers.
Drop the obsolete module options in favor of the new ones.
Signed-off-by: André Almeida <andrealmeid@igalia.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
We need the domains in amdgpu_drm.h for the kernel driver to manage
the pool, but we don't want userspace using it until the code
is ready. So reject for now.
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Fixes the following to align to linux coding style:
WARNING: braces {} are not necessary for any arm of this statement
WARNING: Missing a blank line after declarations
ERROR: space prohibited before that close parenthesis ')'
WARNING: unnecessary whitespace before a quoted newline
WARNING: %LX is non-standard C, use %llX
Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Find xcp_id from amdgpu_fpriv, use it for amdgpu_gem_object_create.
Signed-off-by: James Zhu <James.Zhu@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
For memory accounting per compute partition and export drm amdgpu bo and
then import to KFD, we need the xcp id to account the memory usage or
find the KFD node of the original amdgpu bo to create the KFD bo on the
correct adev KFD node.
Set xcp_id_plus1 of amdgpu_bo_param to create bo and store xcp_id to
amddgpu bo. Add helper macro to get the mem_id from adev and xcp_id.
v2: squash in fix ("drm/amdgpu: Fix BO creation failure on GFX 9.4.3 dGPU")
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Add mem_id_plus1 parameter to amdgpu_gem_object_create and pass it to
amdgpu_bo_create. For dGPU mode allocation, mem_id is used by VRAM
manager to get the memory partition fpfn, lpfn from xcp manager. For APU
native mode allocation, mem_id is used to get NUMA node id from xcp
manager, then pass to TTM as numa pool id to alloc memory from the
specific NUMA node. mem_id -1 means for entire VRAM or any NUMA nodes.
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Thread group id (aka pid from userspace point of view) is a more
interesting thing to show as an owner of a DRM fd, so track and show that
instead of the thread id.
In the next patch we will make the owner updated post file descriptor
handover, which will also be tgid based to avoid ping-pong when multiple
threads access the fd.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230314141904.1210824-2-tvrtko.ursulin@linux.intel.com
F_SEAL_EXEC") which permits the setting of the memfd execute bit at
memfd creation time, with the option of sealing the state of the X bit.
- Peter Xu adds a patch series ("mm/hugetlb: Make huge_pte_offset()
thread-safe for pmd unshare") which addresses a rare race condition
related to PMD unsharing.
- Several folioification patch serieses from Matthew Wilcox, Vishal
Moola, Sidhartha Kumar and Lorenzo Stoakes
- Johannes Weiner has a series ("mm: push down lock_page_memcg()") which
does perform some memcg maintenance and cleanup work.
- SeongJae Park has added DAMOS filtering to DAMON, with the series
"mm/damon/core: implement damos filter". These filters provide users
with finer-grained control over DAMOS's actions. SeongJae has also done
some DAMON cleanup work.
- Kairui Song adds a series ("Clean up and fixes for swap").
- Vernon Yang contributed the series "Clean up and refinement for maple
tree".
- Yu Zhao has contributed the "mm: multi-gen LRU: memcg LRU" series. It
adds to MGLRU an LRU of memcgs, to improve the scalability of global
reclaim.
- David Hildenbrand has added some userfaultfd cleanup work in the
series "mm: uffd-wp + change_protection() cleanups".
- Christoph Hellwig has removed the generic_writepages() library
function in the series "remove generic_writepages".
- Baolin Wang has performed some maintenance on the compaction code in
his series "Some small improvements for compaction".
- Sidhartha Kumar is doing some maintenance work on struct page in his
series "Get rid of tail page fields".
- David Hildenbrand contributed some cleanup, bugfixing and
generalization of pte management and of pte debugging in his series "mm:
support __HAVE_ARCH_PTE_SWP_EXCLUSIVE on all architectures with swap
PTEs".
- Mel Gorman and Neil Brown have removed the __GFP_ATOMIC allocation
flag in the series "Discard __GFP_ATOMIC".
- Sergey Senozhatsky has improved zsmalloc's memory utilization with his
series "zsmalloc: make zspage chain size configurable".
- Joey Gouly has added prctl() support for prohibiting the creation of
writeable+executable mappings. The previous BPF-based approach had
shortcomings. See "mm: In-kernel support for memory-deny-write-execute
(MDWE)".
- Waiman Long did some kmemleak cleanup and bugfixing in the series
"mm/kmemleak: Simplify kmemleak_cond_resched() & fix UAF".
- T.J. Alumbaugh has contributed some MGLRU cleanup work in his series
"mm: multi-gen LRU: improve".
- Jiaqi Yan has provided some enhancements to our memory error
statistics reporting, mainly by presenting the statistics on a per-node
basis. See the series "Introduce per NUMA node memory error
statistics".
- Mel Gorman has a second and hopefully final shot at fixing a CPU-hog
regression in compaction via his series "Fix excessive CPU usage during
compaction".
- Christoph Hellwig does some vmalloc maintenance work in the series
"cleanup vfree and vunmap".
- Christoph Hellwig has removed block_device_operations.rw_page() in ths
series "remove ->rw_page".
- We get some maple_tree improvements and cleanups in Liam Howlett's
series "VMA tree type safety and remove __vma_adjust()".
- Suren Baghdasaryan has done some work on the maintainability of our
vm_flags handling in the series "introduce vm_flags modifier functions".
- Some pagemap cleanup and generalization work in Mike Rapoport's series
"mm, arch: add generic implementation of pfn_valid() for FLATMEM" and
"fixups for generic implementation of pfn_valid()"
- Baoquan He has done some work to make /proc/vmallocinfo and
/proc/kcore better represent the real state of things in his series
"mm/vmalloc.c: allow vread() to read out vm_map_ram areas".
- Jason Gunthorpe rationalized the GUP system's interface to the rest of
the kernel in the series "Simplify the external interface for GUP".
- SeongJae Park wishes to migrate people from DAMON's debugfs interface
over to its sysfs interface. To support this, we'll temporarily be
printing warnings when people use the debugfs interface. See the series
"mm/damon: deprecate DAMON debugfs interface".
- Andrey Konovalov provided the accurately named "lib/stackdepot: fixes
and clean-ups" series.
- Huang Ying has provided a dramatic reduction in migration's TLB flush
IPI rates with the series "migrate_pages(): batch TLB flushing".
- Arnd Bergmann has some objtool fixups in "objtool warning fixes".
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Merge tag 'mm-stable-2023-02-20-13-37' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
F_SEAL_EXEC") which permits the setting of the memfd execute bit at
memfd creation time, with the option of sealing the state of the X
bit.
- Peter Xu adds a patch series ("mm/hugetlb: Make huge_pte_offset()
thread-safe for pmd unshare") which addresses a rare race condition
related to PMD unsharing.
- Several folioification patch serieses from Matthew Wilcox, Vishal
Moola, Sidhartha Kumar and Lorenzo Stoakes
- Johannes Weiner has a series ("mm: push down lock_page_memcg()")
which does perform some memcg maintenance and cleanup work.
- SeongJae Park has added DAMOS filtering to DAMON, with the series
"mm/damon/core: implement damos filter".
These filters provide users with finer-grained control over DAMOS's
actions. SeongJae has also done some DAMON cleanup work.
- Kairui Song adds a series ("Clean up and fixes for swap").
- Vernon Yang contributed the series "Clean up and refinement for maple
tree".
- Yu Zhao has contributed the "mm: multi-gen LRU: memcg LRU" series. It
adds to MGLRU an LRU of memcgs, to improve the scalability of global
reclaim.
- David Hildenbrand has added some userfaultfd cleanup work in the
series "mm: uffd-wp + change_protection() cleanups".
- Christoph Hellwig has removed the generic_writepages() library
function in the series "remove generic_writepages".
- Baolin Wang has performed some maintenance on the compaction code in
his series "Some small improvements for compaction".
- Sidhartha Kumar is doing some maintenance work on struct page in his
series "Get rid of tail page fields".
- David Hildenbrand contributed some cleanup, bugfixing and
generalization of pte management and of pte debugging in his series
"mm: support __HAVE_ARCH_PTE_SWP_EXCLUSIVE on all architectures with
swap PTEs".
- Mel Gorman and Neil Brown have removed the __GFP_ATOMIC allocation
flag in the series "Discard __GFP_ATOMIC".
- Sergey Senozhatsky has improved zsmalloc's memory utilization with
his series "zsmalloc: make zspage chain size configurable".
- Joey Gouly has added prctl() support for prohibiting the creation of
writeable+executable mappings.
The previous BPF-based approach had shortcomings. See "mm: In-kernel
support for memory-deny-write-execute (MDWE)".
- Waiman Long did some kmemleak cleanup and bugfixing in the series
"mm/kmemleak: Simplify kmemleak_cond_resched() & fix UAF".
- T.J. Alumbaugh has contributed some MGLRU cleanup work in his series
"mm: multi-gen LRU: improve".
- Jiaqi Yan has provided some enhancements to our memory error
statistics reporting, mainly by presenting the statistics on a
per-node basis. See the series "Introduce per NUMA node memory error
statistics".
- Mel Gorman has a second and hopefully final shot at fixing a CPU-hog
regression in compaction via his series "Fix excessive CPU usage
during compaction".
- Christoph Hellwig does some vmalloc maintenance work in the series
"cleanup vfree and vunmap".
- Christoph Hellwig has removed block_device_operations.rw_page() in
ths series "remove ->rw_page".
- We get some maple_tree improvements and cleanups in Liam Howlett's
series "VMA tree type safety and remove __vma_adjust()".
- Suren Baghdasaryan has done some work on the maintainability of our
vm_flags handling in the series "introduce vm_flags modifier
functions".
- Some pagemap cleanup and generalization work in Mike Rapoport's
series "mm, arch: add generic implementation of pfn_valid() for
FLATMEM" and "fixups for generic implementation of pfn_valid()"
- Baoquan He has done some work to make /proc/vmallocinfo and
/proc/kcore better represent the real state of things in his series
"mm/vmalloc.c: allow vread() to read out vm_map_ram areas".
- Jason Gunthorpe rationalized the GUP system's interface to the rest
of the kernel in the series "Simplify the external interface for
GUP".
- SeongJae Park wishes to migrate people from DAMON's debugfs interface
over to its sysfs interface. To support this, we'll temporarily be
printing warnings when people use the debugfs interface. See the
series "mm/damon: deprecate DAMON debugfs interface".
- Andrey Konovalov provided the accurately named "lib/stackdepot: fixes
and clean-ups" series.
- Huang Ying has provided a dramatic reduction in migration's TLB flush
IPI rates with the series "migrate_pages(): batch TLB flushing".
- Arnd Bergmann has some objtool fixups in "objtool warning fixes".
* tag 'mm-stable-2023-02-20-13-37' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (505 commits)
include/linux/migrate.h: remove unneeded externs
mm/memory_hotplug: cleanup return value handing in do_migrate_range()
mm/uffd: fix comment in handling pte markers
mm: change to return bool for isolate_movable_page()
mm: hugetlb: change to return bool for isolate_hugetlb()
mm: change to return bool for isolate_lru_page()
mm: change to return bool for folio_isolate_lru()
objtool: add UACCESS exceptions for __tsan_volatile_read/write
kmsan: disable ftrace in kmsan core code
kasan: mark addr_has_metadata __always_inline
mm: memcontrol: rename memcg_kmem_enabled()
sh: initialize max_mapnr
m68k/nommu: add missing definition of ARCH_PFN_OFFSET
mm: percpu: fix incorrect size in pcpu_obj_full_size()
maple_tree: reduce stack usage with gcc-9 and earlier
mm: page_alloc: call panic() when memoryless node allocation fails
mm: multi-gen LRU: avoid futile retries
migrate_pages: move THP/hugetlb migration support check to simplify code
migrate_pages: batch flushing TLB
migrate_pages: share more code between _unmap and _move
...
Replace direct modifications to vma->vm_flags with calls to modifier
functions to be able to track flag changes and to keep vma locking
correctness.
[akpm@linux-foundation.org: fix drivers/misc/open-dice.c, per Hyeonggon Yoo]
Link: https://lkml.kernel.org/r/20230126193752.297968-5-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Reviewed-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arjun Roy <arjunroy@google.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: David Rientjes <rientjes@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jann Horn <jannh@google.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Laurent Dufour <ldufour@linux.ibm.com>
Cc: Lorenzo Stoakes <lstoakes@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Minchan Kim <minchan@google.com>
Cc: Paul E. McKenney <paulmck@kernel.org>
Cc: Peter Oskolkov <posk@google.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Punit Agrawal <punit.agrawal@bytedance.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
amd-drm-next-6.3-2023-01-13:
amdgpu:
- Fix possible segfault in failure case
- Rework FW requests to happen in early_init for all IPs so
that we don't lose the sbios console if FW is missing
- PSR fixes
- Misc cleanups
- Unload fix
- SMU13 fixes
amdkfd:
- Fix for cleared VRAM BOs
- Fix cleanup if GPUVM creation fails
- Memory accounting fix
- Use resource_size rather than open codeing it
- GC11 mGPU fix
radeon:
- Fix memory leak on shutdown
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230113225911.7776-1-alexander.deucher@amd.com
UAPI Changes:
* connector: Support analog-TV mode property
* media: Add MEDIA_BUS_FMT_RGB565_1X24_CPADHI,
MEDIA_BUS_FMT_RGB666_1X18 and MEDIA_BUS_FMT_RGB666_1X24_CPADHI
Cross-subsystem Changes:
* dma-buf: Documentation fixes
* i2c: Introduce i2c_client_get_device_id() helper
Core Changes:
* Improve support for analog TV output
* bridge: Remove unused drm_bridge_chain functions
* debugfs: Add per-device helpers and convert various DRM drivers
* dp-mst: Various fixes
* fbdev emulation: Always pick 32 bpp as default
* KUnit: Add tests for managed helpers; Various cleanups
* panel-orientation: Add quirks for Lenovo Yoga Tab 3 X90F and DynaBook K50
* TTM: Open-code ttm_bo_wait() and remove the helper
Driver Changes:
* Fix preferred depth and bpp values throughout DRM drivers
* Remove #CONFIG_PM guards throughout DRM drivers
* ast: Various fixes
* bridge: Implement i2c's probe_new in various drivers; Fixes; ite-it6505:
Locking fixes, Cache EDID data; ite-it66121: Support IT6610 chip,
Cleanups; lontium-tl9611: Fix HDMI on DragonBoard 845c; parade-ps8640:
Use atomic bridge functions
* gud: Convert to DRM shadow-plane helpers; Perform flushing synchronously
during atomic update
* ili9486: Support 16-bit pixel data
* imx: Split off IPUv3 driver; Various fixes
* mipi-dbi: Convert to DRM shadow-plane helpers plus rsp driver changes;i
Support separate I/O-voltage supply
* mxsfb: Depend on ARCH_MXS or ARCH_MXC
* omapdrm: Various fixes
* panel: Use ktime_get_boottime() to measure power-down delay in various
drivers; Fix auto-suspend delay in various drivers; orisetech-ota5601a:
Add support
* sprd: Cleanups
* sun4i: Convert to new TV-mode property
* tidss: Various fixes
* v3d: Various fixes
* vc4: Convert to new TV-mode property; Support Kunit tests; Cleanups;
dpi: Support RGB565 and RGB666 formats; dsi: Convert DSI driver to
bridge
* virtio: Improve tracing
* vkms: Support small cursors in IGT tests; Various fixes
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Merge tag 'drm-misc-next-2023-01-03' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v6.3:
UAPI Changes:
* connector: Support analog-TV mode property
* media: Add MEDIA_BUS_FMT_RGB565_1X24_CPADHI,
MEDIA_BUS_FMT_RGB666_1X18 and MEDIA_BUS_FMT_RGB666_1X24_CPADHI
Cross-subsystem Changes:
* dma-buf: Documentation fixes
* i2c: Introduce i2c_client_get_device_id() helper
Core Changes:
* Improve support for analog TV output
* bridge: Remove unused drm_bridge_chain functions
* debugfs: Add per-device helpers and convert various DRM drivers
* dp-mst: Various fixes
* fbdev emulation: Always pick 32 bpp as default
* KUnit: Add tests for managed helpers; Various cleanups
* panel-orientation: Add quirks for Lenovo Yoga Tab 3 X90F and DynaBook K50
* TTM: Open-code ttm_bo_wait() and remove the helper
Driver Changes:
* Fix preferred depth and bpp values throughout DRM drivers
* Remove #CONFIG_PM guards throughout DRM drivers
* ast: Various fixes
* bridge: Implement i2c's probe_new in various drivers; Fixes; ite-it6505:
Locking fixes, Cache EDID data; ite-it66121: Support IT6610 chip,
Cleanups; lontium-tl9611: Fix HDMI on DragonBoard 845c; parade-ps8640:
Use atomic bridge functions
* gud: Convert to DRM shadow-plane helpers; Perform flushing synchronously
during atomic update
* ili9486: Support 16-bit pixel data
* imx: Split off IPUv3 driver; Various fixes
* mipi-dbi: Convert to DRM shadow-plane helpers plus rsp driver changes;i
Support separate I/O-voltage supply
* mxsfb: Depend on ARCH_MXS or ARCH_MXC
* omapdrm: Various fixes
* panel: Use ktime_get_boottime() to measure power-down delay in various
drivers; Fix auto-suspend delay in various drivers; orisetech-ota5601a:
Add support
* sprd: Cleanups
* sun4i: Convert to new TV-mode property
* tidss: Various fixes
* v3d: Various fixes
* vc4: Convert to new TV-mode property; Support Kunit tests; Cleanups;
dpi: Support RGB565 and RGB666 formats; dsi: Convert DSI driver to
bridge
* virtio: Improve tracing
* vkms: Support small cursors in IGT tests; Various fixes
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/Y7QIwlfElAYWxRcR@linux-uq9g
