drm/amdgpu: Optimize a function called by every IB sheduling

  Move several if statements and a loop statment from
  run time to initialization time.

Signed-off-by: Alex Xie <AlexBin.Xie@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
index a9223a8de8c2..334307efac8b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
@@ -185,6 +185,7 @@ struct amdgpu_ring {
         u64                     cond_exe_gpu_addr;
         volatile u32            *cond_exe_cpu_addr;
         unsigned                vm_inv_eng;
+        bool                    has_compute_vm_bug;
 #if defined(CONFIG_DEBUG_FS)
         struct dentry *ent;
 #endif
@@ -207,4 +208,9 @@ static inline void amdgpu_ring_clear_ring(struct amdgpu_ring *ring)
 
 }
 
+static inline bool amdgpu_ring_has_compute_vm_bug(struct amdgpu_ring *ring)
+{
+        return ring->has_compute_vm_bug;
+}
+
 #endif