diff options
| author | Chunming Zhou <David1.Zhou@amd.com> | 2016-06-06 08:50:18 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-07-07 21:51:25 +0300 |
| commit | b314f9a997dd1d1e1fb607b68387c1e92e914e66 (patch) | |
| tree | 6e77bf316bdaa29c08c0b37e729ff17c3fafeca6 /drivers/gpu/drm/amd | |
| parent | 89a31827374b9301f549d5ce40dc3529b5b757fd (diff) | |
| download | linux-b314f9a997dd1d1e1fb607b68387c1e92e914e66.tar.xz | |
drm/amdgpu: enable BUS master after pci reset
Re-enable bus mastering after GPU reset. We disable it
at the top of these functions, so balance them by
re-enabling it.
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
eviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/cik.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/vi.c | 5 |
2 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/cik.c b/drivers/gpu/drm/amd/amdgpu/cik.c index 4c21c881ef41..4c80338992ad 100644 --- a/drivers/gpu/drm/amd/amdgpu/cik.c +++ b/drivers/gpu/drm/amd/amdgpu/cik.c @@ -1179,6 +1179,8 @@ static int cik_gpu_pci_config_reset(struct amdgpu_device *adev) /* wait for asic to come out of reset */ for (i = 0; i < adev->usec_timeout; i++) { if (RREG32(mmCONFIG_MEMSIZE) != 0xffffffff) { + /* enable BM */ + pci_set_master(adev->pdev); r = 0; break; } diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c index 064122bfa6f9..e05e722ef6c7 100644 --- a/drivers/gpu/drm/amd/amdgpu/vi.c +++ b/drivers/gpu/drm/amd/amdgpu/vi.c @@ -612,8 +612,11 @@ static int vi_gpu_pci_config_reset(struct amdgpu_device *adev) /* wait for asic to come out of reset */ for (i = 0; i < adev->usec_timeout; i++) { - if (RREG32(mmCONFIG_MEMSIZE) != 0xffffffff) + if (RREG32(mmCONFIG_MEMSIZE) != 0xffffffff) { + /* enable BM */ + pci_set_master(adev->pdev); return 0; + } udelay(1); } return -EINVAL; |