diff options
| author | Hawking Zhang <Hawking.Zhang@amd.com> | 2018-08-08 15:16:43 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-06-20 21:20:17 -0500 |
| commit | e537c9946115cf5391f417c23d2601ca8582db9c (patch) | |
| tree | a90e8e7fbacb2c54f8ac5243b1bfa5102c8e1d87 /drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | |
| parent | cf02b03f7c001c8fdbc8d8e6b71e83d4efe72441 (diff) | |
| download | linux-e537c9946115cf5391f417c23d2601ca8582db9c.tar.bz2 | |
drm/amdgpu: acquire available gfx queues
currently, amdgpu will owns the first gfx queue of each pipe
they are:
me:0 pipe:0 queue:0
me:0 pipe:1 queue:0
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Jack Xiao <jack.xiao@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c index 997932ebbb83..855eff834e2a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c @@ -199,6 +199,30 @@ void amdgpu_gfx_compute_queue_acquire(struct amdgpu_device *adev) adev->gfx.num_compute_rings = AMDGPU_MAX_COMPUTE_RINGS; } +void amdgpu_gfx_graphics_queue_acquire(struct amdgpu_device *adev) +{ + int i, queue, pipe, me; + + for (i = 0; i < AMDGPU_MAX_GFX_QUEUES; ++i) { + queue = i % adev->gfx.me.num_queue_per_pipe; + pipe = (i / adev->gfx.me.num_queue_per_pipe) + % adev->gfx.me.num_pipe_per_me; + me = (i / adev->gfx.me.num_queue_per_pipe) + / adev->gfx.me.num_pipe_per_me; + + if (me >= adev->gfx.me.num_me) + break; + /* policy: amdgpu owns the first queue per pipe at this stage + * will extend to mulitple queues per pipe later */ + if (me == 0 && queue < 1) + set_bit(i, adev->gfx.me.queue_bitmap); + } + + /* update the number of active graphics rings */ + adev->gfx.num_gfx_rings = + bitmap_weight(adev->gfx.me.queue_bitmap, AMDGPU_MAX_GFX_QUEUES); +} + static int amdgpu_gfx_kiq_acquire(struct amdgpu_device *adev, struct amdgpu_ring *ring) { |