Use this interface to issue TLB invalidations using
SDMA.
Signed-off-by: Alex Deucher <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h
index 4f4e56022c970..4ab92d287675a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h
@@ -155,6 +155,23 @@ struct amdgpu_buffer_funcs {
uint64_t dst_offset,
/* number of byte to fill */
uint32_t byte_count);
+
+ /* number of dw to reserve per operation */
+ unsigned tlb_inv_num_dw;
+
+ /* used for buffer clearing */
+ void (*emit_tlb_inv)(struct amdgpu_device *adev,
+ struct amdgpu_ib *ib,
+ /* vmid to target */
+ unsigned int vmid,
+ /* vmhub to target */
+ u32 vmhub,
+ /* inv eng to target */
+ u32 eng,
+ /* flush type */
+ u32 flush_type,
+ /* XCC to target */
+ u32 xcc_inst);
};
int amdgpu_sdma_reset_engine(struct amdgpu_device *adev, uint32_t instance_id,
@@ -162,6 +179,7 @@ int amdgpu_sdma_reset_engine(struct amdgpu_device *adev,
uint32_t instance_id,
#define amdgpu_emit_copy_buffer(adev, ib, s, d, b, t)
(adev)->mman.buffer_funcs->emit_copy_buffer((ib), (s), (d), (b), (t))
#define amdgpu_emit_fill_buffer(adev, ib, s, d, b)
(adev)->mman.buffer_funcs->emit_fill_buffer((ib), (s), (d), (b))
+#define amdgpu_emit_tlb_inv(adev, ib, v, h, e, f, x)
(adev)->mman.buffer_funcs->emit_tlb_inv((adev), (ib), (v), (h), (e), (f), (x))
struct amdgpu_sdma_instance *
amdgpu_sdma_get_instance_from_ring(struct amdgpu_ring *ring);
--
2.55.0
