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drm/amdgpu: hdp_flush is not needed for inside IB 

hdp flush is not needed for IBs that dispatched from kernel inside
because there is no video memory host access

Signed-off-by: monk.liu <monk.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
monk.liu 2015-07-17 17:10:09 +08:00 committed by Alex Deucher
parent 93323131d6
commit e722b71a54
1 changed files with 9 additions and 9 deletions
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18
drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
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@ -180,17 +180,17 @@ int amdgpu_ib_schedule(struct amdgpu_device *adev, unsigned num_ibs,
if (vm) {
/* do context switch */
amdgpu_vm_flush(ring, vm, ib->sync.last_vm_update);
if (ring->funcs->emit_gds_switch)
amdgpu_ring_emit_gds_switch(ring, ib->vm->ids[ring->idx].id,
ib->gds_base, ib->gds_size,
ib->gws_base, ib->gws_size,
ib->oa_base, ib->oa_size);
if (ring->funcs->emit_hdp_flush)
amdgpu_ring_emit_hdp_flush(ring);
}
if (vm && ring->funcs->emit_gds_switch)
amdgpu_ring_emit_gds_switch(ring, ib->vm->ids[ring->idx].id,
ib->gds_base, ib->gds_size,
ib->gws_base, ib->gws_size,
ib->oa_base, ib->oa_size);
if (ring->funcs->emit_hdp_flush)
amdgpu_ring_emit_hdp_flush(ring);
old_ctx = ring->current_ctx;
for (i = 0; i < num_ibs; ++i) {
ib = &ibs[i];