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author | 2024-04-02 11:41:05 +0800 | |
---|---|---|
committer | 2024-04-09 23:27:58 -0400 | |
commit | e33997e18d0fddd217a0fce988abbfd015338631 (patch) | |
tree | a33d750939690aa14a4cdf7a1af5dd55bbbe1e8c /drivers/gpu/drm/amd | |
parent | drm/amdgpu: Fix VCN allocation in CPX partition (diff) | |
download | linux-e33997e18d0fddd217a0fce988abbfd015338631.tar.gz linux-e33997e18d0fddd217a0fce988abbfd015338631.tar.bz2 linux-e33997e18d0fddd217a0fce988abbfd015338631.zip |
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
Diffstat (limited to 'drivers/gpu/drm/amd')
-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 1770e496c1b7..2c82e2741619 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; } |