diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_cper.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_cper.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cper.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cper.c index b70cf13aa9c0..57775546e64b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cper.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cper.c @@ -440,6 +440,7 @@ void amdgpu_cper_ring_write(struct amdgpu_ring *ring, wptr_old = ring->wptr; + mutex_lock(&ring->adev->cper.ring_lock); while (count) { ent_sz = amdgpu_cper_ring_get_ent_sz(ring, ring->wptr); chunk = umin(ent_sz, count); @@ -468,6 +469,7 @@ void amdgpu_cper_ring_write(struct amdgpu_ring *ring, pos = rptr; } while (!amdgpu_cper_is_hdr(ring, rptr)); } + mutex_unlock(&ring->adev->cper.ring_lock); if (ring->count_dw >= (count >> 2)) ring->count_dw -= (count >> 2); @@ -497,6 +499,8 @@ static int amdgpu_cper_ring_init(struct amdgpu_device *adev) { struct amdgpu_ring *ring = &(adev->cper.ring_buf); + mutex_init(&adev->cper.ring_lock); + ring->adev = NULL; ring->ring_obj = NULL; ring->use_doorbell = false; |