Define ring structure to access the cpu/gpu address of rptr/wptr/fence
instead of dynamic calculation.
Cc: Christian König <christian.koe...@amd.com>
Suggested-by: Christian König <christian.koe...@amd.com>
Signed-off-by: Jack Xiao <jack.x...@amd.com>
Reviewed-by: Hawking Zhang <hawking.zh...@amd.com>
Acked-by: Christian König <christian.koe...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
index da871d84b742..940618d1bd4d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
@@ -208,6 +208,8 @@ struct amdgpu_ring {
struct amdgpu_bo *ring_obj;
volatile uint32_t *ring;
unsigned rptr_offs;
+ u64 rptr_gpu_addr;
+ volatile u32 *rptr_cpu_addr;
u64 wptr;
u64 wptr_old;
unsigned ring_size;
@@ -228,7 +230,11 @@ struct amdgpu_ring {
bool use_doorbell;
bool use_pollmem;
unsigned wptr_offs;
+ u64 wptr_gpu_addr;
+ volatile u32 *wptr_cpu_addr;
unsigned fence_offs;
+ u64 fence_gpu_addr;
+ volatile u32 *fence_cpu_addr;
uint64_t current_ctx;
char name[16];
u32 trail_seq;
--
2.26.2
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