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| author | Tom St Denis <tom.stdenis@amd.com> | 2016-08-11 15:55:51 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-08-16 16:39:27 +0200 |
| commit | 9aeb774c1e458313d9f013ca482be03a993c601e (patch) | |
| tree | 885758912bf3e5a326c95005e1866166becd5a37 | |
| parent | drm/amd/amdgpu: Cleanup register access in VCE v3 (diff) | |
| download | linux-9aeb774c1e458313d9f013ca482be03a993c601e.tar.xz linux-9aeb774c1e458313d9f013ca482be03a993c601e.zip | |
drm/amd/amdgpu: add mutex in check_soft for VCE v3
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/vce_v3_0.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c index 073cf9ed0674..615b8b16ad04 100644 --- a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c @@ -569,6 +569,7 @@ static int vce_v3_0_check_soft_reset(void *handle) * * VCE team suggest use bit 3--bit 6 for busy status check */ + mutex_lock(&adev->grbm_idx_mutex); WREG32_FIELD(GRBM_GFX_INDEX, INSTANCE_INDEX, 0); if (RREG32(mmVCE_STATUS) & AMDGPU_VCE_STATUS_BUSY_MASK) { srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_VCE0, 1); @@ -588,6 +589,7 @@ static int vce_v3_0_check_soft_reset(void *handle) adev->ip_block_status[AMD_IP_BLOCK_TYPE_VCE].hang = false; adev->vce.srbm_soft_reset = 0; } + mutex_unlock(&adev->grbm_idx_mutex); return 0; } |