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

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>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 992f00b65be4..01c36b8d6222 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -799,6 +799,7 @@ struct amdgpu_ring {
         unsigned                cond_exe_offs;
         u64                             cond_exe_gpu_addr;
         volatile u32    *cond_exe_cpu_addr;
+        int                     vmid;
 };
 
 /*
@@ -936,7 +937,8 @@ 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);
 void amdgpu_vm_reset_id(struct amdgpu_device *adev, unsigned vm_id);
 uint64_t amdgpu_vm_map_gart(const dma_addr_t *pages_addr, uint64_t addr);
 int amdgpu_vm_update_page_directory(struct amdgpu_device *adev,