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| author | Andres Rodriguez <andresx7@gmail.com> | 2017-06-06 20:20:38 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-10-09 16:30:24 -0400 |
| commit | c23be4ae1d50e8d93f805de7ae3e8ea49a4ad781 (patch) | |
| tree | 82fa44444feb8ca722f7f2ce40abf7d897f8ba05 /drivers/gpu/drm/amd/amdgpu | |
| parent | f3d19bf80d6c7bfe5922c09604a402ef176da41f (diff) | |
| download | linux-c23be4ae1d50e8d93f805de7ae3e8ea49a4ad781.tar.bz2 | |
drm/amdgpu: add plumbing for ctx priority changes v2
Introduce amdgpu_ctx_priority_override(). A mechanism to override a
context's priority.
An override can be terminated by setting the override to
AMD_SCHED_PRIORITY_UNSET.
v2: change refcounted interface for a direct set
Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 29 |
2 files changed, 34 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 715ce4863bc8..951c8db01412 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -735,7 +735,9 @@ struct amdgpu_ctx { spinlock_t ring_lock; struct dma_fence **fences; struct amdgpu_ctx_ring rings[AMDGPU_MAX_RINGS]; - bool preamble_presented; + bool preamble_presented; + enum amd_sched_priority init_priority; + enum amd_sched_priority override_priority; }; struct amdgpu_ctx_mgr { @@ -752,6 +754,8 @@ int amdgpu_ctx_add_fence(struct amdgpu_ctx *ctx, struct amdgpu_ring *ring, struct dma_fence *fence, uint64_t *seq); struct dma_fence *amdgpu_ctx_get_fence(struct amdgpu_ctx *ctx, struct amdgpu_ring *ring, uint64_t seq); +void amdgpu_ctx_priority_override(struct amdgpu_ctx *ctx, + enum amd_sched_priority priority); int amdgpu_ctx_ioctl(struct drm_device *dev, void *data, struct drm_file *filp); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c index 29eebdc30a4c..d2ef24f4b56d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c @@ -72,6 +72,8 @@ static int amdgpu_ctx_init(struct amdgpu_device *adev, } ctx->reset_counter = atomic_read(&adev->gpu_reset_counter); + ctx->init_priority = priority; + ctx->override_priority = AMD_SCHED_PRIORITY_UNSET; /* create context entity for each ring */ for (i = 0; i < adev->num_rings; i++) { @@ -362,6 +364,33 @@ struct dma_fence *amdgpu_ctx_get_fence(struct amdgpu_ctx *ctx, return fence; } +void amdgpu_ctx_priority_override(struct amdgpu_ctx *ctx, + enum amd_sched_priority priority) +{ + int i; + struct amdgpu_device *adev = ctx->adev; + struct amd_sched_rq *rq; + struct amd_sched_entity *entity; + struct amdgpu_ring *ring; + enum amd_sched_priority ctx_prio; + + ctx->override_priority = priority; + + ctx_prio = (ctx->override_priority == AMD_SCHED_PRIORITY_UNSET) ? + ctx->init_priority : ctx->override_priority; + + for (i = 0; i < adev->num_rings; i++) { + ring = adev->rings[i]; + entity = &ctx->rings[i].entity; + rq = &ring->sched.sched_rq[ctx_prio]; + + if (ring->funcs->type == AMDGPU_RING_TYPE_KIQ) + continue; + + amd_sched_entity_set_rq(entity, rq); + } +} + void amdgpu_ctx_mgr_init(struct amdgpu_ctx_mgr *mgr) { mutex_init(&mgr->lock); |