diff options
| author | Andres Rodriguez <andresx7@gmail.com> | 2017-09-26 17:43:14 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-09-28 16:03:22 -0400 |
| commit | 35161bbc135a748dd0a3c822030b3341cdefbd33 (patch) | |
| tree | 5b732d2d0b22b194c1a3436b6bef8355ad6cd265 /drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c | |
| parent | 4a75aefe3feb99ff87c1ea594b4db377b98f50e8 (diff) | |
drm/amdgpu: map compute rings by least recently used pipe
This patch provides a guarantee that the first n queues allocated by
an application will be on different pipes. Where n is the number of
pipes available from the hardware.
This helps avoid ring aliasing which can result in work executing in
time-sliced mode instead of truly parallel mode.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c index befc09b68543..190e28cb827e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c @@ -121,7 +121,7 @@ static enum amdgpu_ring_type amdgpu_hw_ip_to_ring_type(int hw_ip) static int amdgpu_lru_map(struct amdgpu_device *adev, struct amdgpu_queue_mapper *mapper, - int user_ring, + int user_ring, bool lru_pipe_order, struct amdgpu_ring **out_ring) { int r, i, j; @@ -139,7 +139,7 @@ static int amdgpu_lru_map(struct amdgpu_device *adev, } r = amdgpu_ring_lru_get(adev, ring_type, ring_blacklist, - j, out_ring); + j, lru_pipe_order, out_ring); if (r) return r; @@ -284,8 +284,10 @@ int amdgpu_queue_mgr_map(struct amdgpu_device *adev, r = amdgpu_identity_map(adev, mapper, ring, out_ring); break; case AMDGPU_HW_IP_DMA: + r = amdgpu_lru_map(adev, mapper, ring, false, out_ring); + break; case AMDGPU_HW_IP_COMPUTE: - r = amdgpu_lru_map(adev, mapper, ring, out_ring); + r = amdgpu_lru_map(adev, mapper, ring, true, out_ring); break; default: *out_ring = NULL; |