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drm/amdgpu: move WB_FREE to correct place

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WB_FREE should be put after all engines's hw_fini
done, otherwise the invalid wptr/rptr_addr would still
be used by engines which trigger abnormal bugs.

This fixes couple DMAR reading error in host side for SRIOV
after guest kmd is unloaded.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Monk Liu 2018-01-24 12:20:32 +08:00 committed by Alex Deucher
parent 9f51943c2a
commit a4ef6edc8e
1 changed files with 7 additions and 5 deletions
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12
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View file

@ -1455,11 +1455,6 @@ static int amdgpu_device_ip_fini(struct amdgpu_device *adev)
for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
if (!adev->ip_blocks[i].status.hw)
continue;
if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) {
amdgpu_free_static_csa(adev);
amdgpu_device_wb_fini(adev);
amdgpu_device_vram_scratch_fini(adev);
}
if (adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_UVD &&
adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCE) {
@ -1486,6 +1481,13 @@ static int amdgpu_device_ip_fini(struct amdgpu_device *adev)
for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
if (!adev->ip_blocks[i].status.sw)
continue;
if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) {
amdgpu_free_static_csa(adev);
amdgpu_device_wb_fini(adev);
amdgpu_device_vram_scratch_fini(adev);
}
r = adev->ip_blocks[i].version->funcs->sw_fini((void *)adev);
/* XXX handle errors */
if (r) {