diff options
| author | Philip Yang <Philip.Yang@amd.com> | 2018-10-19 21:58:28 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-11-05 22:21:00 +0300 |
| commit | efcf063f8d85ffd7d9f9ae4a19d185f48e57a7f0 (patch) | |
| tree | 46619d1417c569de0038b405671b3bb408a1d668 /drivers | |
| parent | d7f625e91b326c39413fa68ec4b8b2f280fd87b3 (diff) | |
| download | linux-efcf063f8d85ffd7d9f9ae4a19d185f48e57a7f0.tar.xz | |
drm/amdgpu: fix sdma v4 ring is disabled accidently
For sdma v4, there is bug caused by
commit d4e869b6b5d6 ("drm/amdgpu: add ring test for page queue")'
local variable ring is reused and changed, so amdgpu_ttm_set_buffer_funcs_status(adev, true)
is skipped accidently. As a result, amdgpu_fill_buffer() will fail, kernel message:
[drm:amdgpu_fill_buffer [amdgpu]] *ERROR* Trying to clear memory with ring turned off.
[ 25.260444] [drm:amdgpu_fill_buffer [amdgpu]] *ERROR* Trying to clear memory with ring turned off.
[ 25.260627] [drm:amdgpu_fill_buffer [amdgpu]] *ERROR* Trying to clear memory with ring turned off.
[ 25.290119] [drm:amdgpu_fill_buffer [amdgpu]] *ERROR* Trying to clear memory with ring turned off.
[ 25.290370] [drm:amdgpu_fill_buffer [amdgpu]] *ERROR* Trying to clear memory with ring turned off.
[ 25.319971] [drm:amdgpu_fill_buffer [amdgpu]] *ERROR* Trying to clear memory with ring turned off.
[ 25.320486] amdgpu 0000:19:00.0: [mmhub] VMC page fault (src_id:0 ring:154 vmid:8 pasid:32768, for process pid 0 thread pid 0)
[ 25.320533] amdgpu 0000:19:00.0: in page starting at address 0x0000000000000000 from 18
[ 25.320563] amdgpu 0000:19:00.0: VM_L2_PROTECTION_FAULT_STATUS:0x00800134
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c index dc0e8053a477..c0d1650d6c71 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c @@ -1151,10 +1151,11 @@ static int sdma_v4_0_start(struct amdgpu_device *adev) } if (adev->sdma.has_page_queue) { - ring = &adev->sdma.instance[i].page; - r = amdgpu_ring_test_ring(ring); + struct amdgpu_ring *page = &adev->sdma.instance[i].page; + + r = amdgpu_ring_test_ring(page); if (r) { - ring->ready = false; + page->ready = false; return r; } } |