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drm/amdgpu: add pipeline sync while vmid switch in same ctx

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Since vmid-mgr supports vmid sharing in one vm, the same ctx could
get different vmids for two emits without vm flush, vm_flush could
be done in another ring.

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chunming Zhou
2016-04-27 18:07:41 +08:00
committed by Alex Deucher
parent fdff8cfa72
commit 2ba272d7bd
3 changed files with 13 additions and 6 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
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@@ -298,7 +298,8 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring,
unsigned vm_id, uint64_t pd_addr,
uint32_t gds_base, uint32_t gds_size,
uint32_t gws_base, uint32_t gws_size,
uint32_t oa_base, uint32_t oa_size)
uint32_t oa_base, uint32_t oa_size,
bool vmid_switch)
{
struct amdgpu_device *adev = ring->adev;
struct amdgpu_vm_id *id = &adev->vm_manager.ids[vm_id];
@@ -312,8 +313,7 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring,
int r;
if (ring->funcs->emit_pipeline_sync && (
pd_addr != AMDGPU_VM_NO_FLUSH || gds_switch_needed ||
ring->type == AMDGPU_RING_TYPE_COMPUTE))
pd_addr != AMDGPU_VM_NO_FLUSH || gds_switch_needed || vmid_switch))
amdgpu_ring_emit_pipeline_sync(ring);
if (ring->funcs->emit_vm_flush &&