p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

drm/amdgpu/gfx10: unlock srbm_mutex after queue programming finish 

srbm_mutex is to guarantee atomicity for r/w of gfx indexed registers

Signed-off-by: Xiaojie Yuan <xiaojie.yuan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Xiaojie Yuan 2019-11-06 21:10:20 +08:00 committed by Alex Deucher
parent f0312f45a0
commit fa2b93e39b
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
View File

@ -2825,7 +2825,7 @@ static int gfx_v10_0_cp_gfx_resume(struct amdgpu_device *adev)
/* Init gfx ring 0 for pipe 0 */
mutex_lock(&adev->srbm_mutex);
gfx_v10_0_cp_gfx_switch_pipe(adev, PIPE_ID0);
mutex_unlock(&adev->srbm_mutex);
/* Set ring buffer size */
ring = &adev->gfx.gfx_ring[0];
rb_bufsz = order_base_2(ring->ring_size / 8);
@ -2863,11 +2863,11 @@ static int gfx_v10_0_cp_gfx_resume(struct amdgpu_device *adev)
WREG32_SOC15(GC, 0, mmCP_RB_ACTIVE, 1);
gfx_v10_0_cp_gfx_set_doorbell(adev, ring);
mutex_unlock(&adev->srbm_mutex);
/* Init gfx ring 1 for pipe 1 */
mutex_lock(&adev->srbm_mutex);
gfx_v10_0_cp_gfx_switch_pipe(adev, PIPE_ID1);
mutex_unlock(&adev->srbm_mutex);
ring = &adev->gfx.gfx_ring[1];
rb_bufsz = order_base_2(ring->ring_size / 8);
tmp = REG_SET_FIELD(0, CP_RB1_CNTL, RB_BUFSZ, rb_bufsz);
@ -2897,6 +2897,7 @@ static int gfx_v10_0_cp_gfx_resume(struct amdgpu_device *adev)
WREG32_SOC15(GC, 0, mmCP_RB1_ACTIVE, 1);
gfx_v10_0_cp_gfx_set_doorbell(adev, ring);
mutex_unlock(&adev->srbm_mutex);
/* Switch to pipe 0 */
mutex_lock(&adev->srbm_mutex);