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drm/amdgpu: define ring structure to access rptr/wptr/fence

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Define ring structure to access the cpu/gpu address of rptr/wptr/fence
instead of dynamic calculation.

Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jack Xiao 2020-06-11 11:27:47 +08:00 committed by Alex Deucher
parent c6abbcbc76
commit d74c5b06e6
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
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@ -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;