diff options
| author | Shashank Sharma <shashank.sharma@amd.com> | 2024-11-20 18:59:49 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-04-08 16:48:18 -0400 |
| commit | b0328087c179f47ea6558c3b91b4487c5e10deda (patch) | |
| tree | 7b41fee39432946812413fccfd15364beac238e0 /drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.h | |
| parent | 30e4d781385dda92fdee574b0a95094dfa143b52 (diff) | |
drm/amdgpu: suspend gfx userqueues
This patch adds suspend support for gfx userqueues. It typically does
the following:
- adds an enable_signaling function for the eviction fence, so that it
can trigger the userqueue suspend,
- adds a delayed work to handle suspending of the eviction_fence
- adds a suspend function to handle suspending of userqueues which
suspends all the queues under this userq manager and signals the
eviction fence,
- adds a function to replace the old eviction fence with a new one and
attach it to each of the objects,
- adds reference of userq manager in the eviction fence container so
that it can be used in the suspend function.
V2: Addressed Christian's review comments:
- schedule suspend work immediately
V4: Addressed Christian's review comments:
- wait for pending uq fences before starting suspend, added
queue->last_fence for the same
- accommodate ev_fence_mgr into existing code
- some bug fixes and NULL checks
V5: Addressed Christian's review comments (gitlab)
- Wait for eviction fence to get signaled in destroy,
don't signal it
- Wait for eviction fence to get signaled in replace fence,
don't signal it
V6: Addressed Christian's review comments
- Do not destroy the old eviction fence until we have it replaced
- Change the sequence of fence replacement sub-tasks
- reusing the ev_fence delayed work for userqueue suspend as well
(Shashank).
V7: Addressed Christian's review comments
- give evf_mgr as argument (instead of fpriv) to replace_fence()
- save ptr to evf_mgr in ev_fence (instead of uq_mgr)
- modify suspend_all_queues logic to reflect error properly
- remove the garbage drm_exec_lock section in wait_for_signal
- grab the userqueue mutex before starting the wait for fence
- remove the unrelated gobj check from signal_ioctl
V8: Added race condition fixes
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian Koenig <christian.koenig@amd.com>
Acked-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>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.h index aba12a43f433..12f168ec3ef0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.h @@ -37,6 +37,7 @@ struct amdgpu_eviction_fence_mgr { atomic_t ev_fence_seq; spinlock_t ev_fence_lock; struct amdgpu_eviction_fence *ev_fence; + struct delayed_work suspend_work; }; /* Eviction fence helper functions */ @@ -60,4 +61,7 @@ amdgpu_eviction_fence_init(struct amdgpu_eviction_fence_mgr *evf_mgr); void amdgpu_eviction_fence_signal(struct amdgpu_eviction_fence_mgr *evf_mgr); +int +amdgpu_eviction_fence_replace_fence(struct amdgpu_eviction_fence_mgr *evf_mgr, + struct drm_exec *exec); #endif |