drm/amdgpu: stop using the ring index in the SA

The ring index will always collide as hash into the fence list, so use
the context number instead. That can still cause collisions, but they
are less likely than using ring indices.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 9a03d566bf6d..6c7eee93cdd1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -578,11 +578,14 @@ int amdgpu_gem_debugfs_init(struct amdgpu_device *adev);
  * Assumption is that there won't be hole (all object on same
  * alignment).
  */
+
+#define AMDGPU_SA_NUM_FENCE_LISTS       32
+
 struct amdgpu_sa_manager {
         wait_queue_head_t       wq;
         struct amdgpu_bo        *bo;
         struct list_head        *hole;
-        struct list_head        flist[AMDGPU_MAX_RINGS];
+        struct list_head        flist[AMDGPU_SA_NUM_FENCE_LISTS];
         struct list_head        olist;
         unsigned                size;
         uint64_t                gpu_addr;