From: Jack Xiao <Jack.Xiao@xxxxxxx>
Define ring structure to access the cpu/gpu address of rptr/wptr/fence
instead of dynamic calculation.
Signed-off-by: Jack Xiao <Jack.Xiao@xxxxxxx>
Acked-by: Christian König <christian.koenig@xxxxxxx>
Reviewed-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
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 317a66bcd258..7d89a52091c0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
@@ -230,6 +230,8 @@ 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;
@@ -250,7 +252,11 @@ 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;
--
2.35.1
