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

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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>
This commit is contained in:
Christian König
2016-03-11 14:50:08 +01:00
committed by Alex Deucher
parent f4247c5046
commit 6ba60b891c
2 changed files with 22 additions and 36 deletions
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5
drivers/gpu/drm/amd/amdgpu/amdgpu.h
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@@ -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;