mirror
/
linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/amdgpu: fix gfx VF FLR test fail on navi 

Cp wptr in wb buffer is outdated after VF FLR.
The outdated wptr may cause cp to execute unexpected packets.
Reset cp wptr in wb buffer.

Signed-off-by: HaiJun Chang <HaiJun.Chang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
HaiJun Chang 2019-10-29 15:44:08 +08:00 committed by Alex Deucher
parent bff77e86a3
commit 897110eed5
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
View File

@ -3106,6 +3106,7 @@ static int gfx_v10_0_gfx_init_queue(struct amdgpu_ring *ring)
memcpy(mqd, adev->gfx.me.mqd_backup[AMDGPU_MAX_GFX_RINGS], sizeof(*mqd));
/* reset the ring */
ring->wptr = 0;
adev->wb.wb[ring->wptr_offs] = 0;
amdgpu_ring_clear_ring(ring);
#ifdef BRING_UP_DEBUG
mutex_lock(&adev->srbm_mutex);