drm/amdgpu: add 64bit wb functions

Newer asics need 64 bit writeback slots.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Ken Wang <Qingqing.Wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 37 insertions, 13 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index c9b536f4b019..bfd4022210ed 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -182,16 +182,32 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
 			return r;
 	}
 
-	r = amdgpu_wb_get(adev, &ring->rptr_offs);
-	if (r) {
-		dev_err(adev->dev, "(%d) ring rptr_offs wb alloc failed\n", r);
-		return r;
-	}
+	if (ring->funcs->support_64bit_ptrs) {
+		r = amdgpu_wb_get_64bit(adev, &ring->rptr_offs);
+		if (r) {
+			dev_err(adev->dev, "(%d) ring rptr_offs wb alloc failed\n", r);
+			return r;
+		}
+
+		r = amdgpu_wb_get_64bit(adev, &ring->wptr_offs);
+		if (r) {
+			dev_err(adev->dev, "(%d) ring wptr_offs wb alloc failed\n", r);
+			return r;
+		}
+
+	} else {
+		r = amdgpu_wb_get(adev, &ring->rptr_offs);
+		if (r) {
+			dev_err(adev->dev, "(%d) ring rptr_offs wb alloc failed\n", r);
+			return r;
+		}
+
+		r = amdgpu_wb_get(adev, &ring->wptr_offs);
+		if (r) {
+			dev_err(adev->dev, "(%d) ring wptr_offs wb alloc failed\n", r);
+			return r;
+		}
 
-	r = amdgpu_wb_get(adev, &ring->wptr_offs);
-	if (r) {
-		dev_err(adev->dev, "(%d) ring wptr_offs wb alloc failed\n", r);
-		return r;
 	}
 
 	r = amdgpu_wb_get(adev, &ring->fence_offs);
@@ -256,10 +272,18 @@ void amdgpu_ring_fini(struct amdgpu_ring *ring)
 {
 	ring->ready = false;
 
-	amdgpu_wb_free(ring->adev, ring->cond_exe_offs);
-	amdgpu_wb_free(ring->adev, ring->fence_offs);
-	amdgpu_wb_free(ring->adev, ring->rptr_offs);
-	amdgpu_wb_free(ring->adev, ring->wptr_offs);
+	if (ring->funcs->support_64bit_ptrs) {
+		amdgpu_wb_free_64bit(ring->adev, ring->cond_exe_offs);
+		amdgpu_wb_free_64bit(ring->adev, ring->fence_offs);
+		amdgpu_wb_free_64bit(ring->adev, ring->rptr_offs);
+		amdgpu_wb_free_64bit(ring->adev, ring->wptr_offs);
+	} else {
+		amdgpu_wb_free(ring->adev, ring->cond_exe_offs);
+		amdgpu_wb_free(ring->adev, ring->fence_offs);
+		amdgpu_wb_free(ring->adev, ring->rptr_offs);
+		amdgpu_wb_free(ring->adev, ring->wptr_offs);
+	}
+
 
 	amdgpu_bo_free_kernel(&ring->ring_obj,
 			      &ring->gpu_addr,