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drm/amdgpu: use separate scheduler entitiy for buffer moves 

This allows us to remove the global kernel context.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2016-02-10 14:20:50 +01:00 committed by Alex Deucher
parent 2d55e45a03
commit 703297c1fe
2 changed files with 20 additions and 1 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View File

@ -456,6 +456,8 @@ struct amdgpu_mman {
/* buffer handling */
const struct amdgpu_buffer_funcs *buffer_funcs;
struct amdgpu_ring *buffer_funcs_ring;
/* Scheduler entity for buffer moves */
struct amd_sched_entity entity;
};
int amdgpu_copy_buffer(struct amdgpu_ring *ring,

19
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
View File

@ -77,6 +77,8 @@ static void amdgpu_ttm_mem_global_release(struct drm_global_reference *ref)
static int amdgpu_ttm_global_init(struct amdgpu_device *adev)
{
struct drm_global_reference *global_ref;
struct amdgpu_ring *ring;
struct amd_sched_rq *rq;
int r;
adev->mman.mem_global_referenced = false;
@ -106,13 +108,27 @@ static int amdgpu_ttm_global_init(struct amdgpu_device *adev)
return r;
}
ring = adev->mman.buffer_funcs_ring;
rq = &ring->sched.sched_rq[AMD_SCHED_PRIORITY_KERNEL];
r = amd_sched_entity_init(&ring->sched, &adev->mman.entity,
rq, amdgpu_sched_jobs);
if (r != 0) {
DRM_ERROR("Failed setting up TTM BO move run queue.\n");
drm_global_item_unref(&adev->mman.mem_global_ref);
drm_global_item_unref(&adev->mman.bo_global_ref.ref);
return r;
}
adev->mman.mem_global_referenced = true;
return 0;
}
static void amdgpu_ttm_global_fini(struct amdgpu_device *adev)
{
if (adev->mman.mem_global_referenced) {
amd_sched_entity_fini(adev->mman.entity.sched,
&adev->mman.entity);
drm_global_item_unref(&adev->mman.bo_global_ref.ref);
drm_global_item_unref(&adev->mman.mem_global_ref);
adev->mman.mem_global_referenced = false;
@ -1053,7 +1069,8 @@ int amdgpu_copy_buffer(struct amdgpu_ring *ring,
amdgpu_ring_pad_ib(ring, &job->ibs[0]);
WARN_ON(job->ibs[0].length_dw > num_dw);
r = amdgpu_job_submit(job, ring, NULL, AMDGPU_FENCE_OWNER_UNDEFINED, fence);
r = amdgpu_job_submit(job, ring, &adev->mman.entity,
AMDGPU_FENCE_OWNER_UNDEFINED, fence);
if (r)
goto error_free;