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,