xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/amdgpu: enable BUS master after pci reset

Browse Source 
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>
This commit is contained in:
Chunming Zhou
2016-06-06 13:50:18 +08:00
committed by Alex Deucher
parent 89a3182737
commit b314f9a997
2 changed files with 6 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

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

@@ -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;