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drm/amdgpu: if a GDS switch is needed emit a pipeline sync as well

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Otherwise we might change the GDS settings while they are still in use.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
This commit is contained in:
Christian König 2016-03-01 15:51:53 +01:00 committed by Alex Deucher
parent b8c7b39ec1
commit d564a06e1c
1 changed files with 12 additions and 10 deletions
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22
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
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@ -254,22 +254,24 @@ void amdgpu_vm_flush(struct amdgpu_ring *ring,
{
struct amdgpu_device *adev = ring->adev;
struct amdgpu_vm_manager_id *mgr_id = &adev->vm_manager.ids[vm_id];
bool gds_switch_needed = ring->funcs->emit_gds_switch && (
mgr_id->gds_base != gds_base ||
mgr_id->gds_size != gds_size ||
mgr_id->gws_base != gws_base ||
mgr_id->gws_size != gws_size ||
mgr_id->oa_base != oa_base ||
mgr_id->oa_size != oa_size);
if (ring->funcs->emit_pipeline_sync && (
pd_addr != AMDGPU_VM_NO_FLUSH || gds_switch_needed))
amdgpu_ring_emit_pipeline_sync(ring);
if (pd_addr != AMDGPU_VM_NO_FLUSH) {
trace_amdgpu_vm_flush(pd_addr, ring->idx, vm_id);
if (ring->funcs->emit_pipeline_sync)
amdgpu_ring_emit_pipeline_sync(ring);
amdgpu_ring_emit_vm_flush(ring, vm_id, pd_addr);
}
if (ring->funcs->emit_gds_switch && (
mgr_id->gds_base != gds_base ||
mgr_id->gds_size != gds_size ||
mgr_id->gws_base != gws_base ||
mgr_id->gws_size != gws_size ||
mgr_id->oa_base != oa_base ||
mgr_id->oa_size != oa_size)) {
if (gds_switch_needed) {
mgr_id->gds_base = gds_base;
mgr_id->gds_size = gds_size;
mgr_id->gws_base = gws_base;