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drm/amdgpu: use write confirm for vm_flush() 

Make sure the CP waits for the write to be confirmed before
invalidating.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2015-09-05 11:59:50 +02:00 committed by Alex Deucher
parent 22c01cc483
commit 20a85ff846
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
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@ -4059,7 +4059,8 @@ static void gfx_v8_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
amdgpu_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
amdgpu_ring_write(ring, (WRITE_DATA_ENGINE_SEL(usepfp) |
WRITE_DATA_DST_SEL(0)));
WRITE_DATA_DST_SEL(0)) |
WR_CONFIRM);
if (vm_id < 8) {
amdgpu_ring_write(ring,
(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vm_id));