diff options
| author | ZhenGuo Yin <zhenguo.yin@amd.com> | 2024-04-02 11:41:05 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-04-09 23:27:58 -0400 |
| commit | e33997e18d0fddd217a0fce988abbfd015338631 (patch) | |
| tree | a33d750939690aa14a4cdf7a1af5dd55bbbe1e8c | |
| parent | f7e232de51bb1b45646e5b7dc4ebcf13510f2630 (diff) | |
| download | linux-e33997e18d0fddd217a0fce988abbfd015338631.tar.gz | |
drm/amdgpu: clear set_q_mode_offs when VM changed
[Why]
set_q_mode_offs don't get cleared after GPU reset, nexting SET_Q_MODE
packet to init shadow memory will be skiped, hence there has a page fault.
[How]
VM flush is needed after GPU reset, clear set_q_mode_offs when
emitting VM flush.
Fixes: 8bc75586ea01 ("drm/amdgpu: workaround to avoid SET_Q_MODE packets v2")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: ZhenGuo Yin <zhenguo.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c index 1770e496c1b7ce..2c82e27416190a 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c @@ -5465,6 +5465,7 @@ static void gfx_v11_0_ring_emit_vm_flush(struct amdgpu_ring *ring, /* Make sure that we can't skip the SET_Q_MODE packets when the VM * changed in any way. */ + ring->set_q_mode_offs = 0; ring->set_q_mode_ptr = NULL; } |