readq/writeq are not supported on all architectures
Signed-off-by: Tao Zhou <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 558fe6d091ed..7eb9e0b9235a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -272,14 +272,10 @@ void amdgpu_mm_wreg(struct amdgpu_device *adev, uint32_t
reg, uint32_t v,
*/
uint64_t amdgpu_mm_rreg64(struct amdgpu_device *adev, uint32_t reg)
{
- uint64_t ret;
-
if ((reg * 4) < adev->rmmio_size)
- ret = readq(((void __iomem *)adev->rmmio) + (reg * 4));
+ return atomic64_read((atomic64_t *)(adev->rmmio + (reg * 4)));
else
BUG();
-
- return ret;
}
/**
@@ -294,7 +290,7 @@ uint64_t amdgpu_mm_rreg64(struct amdgpu_device *adev,
uint32_t reg)
void amdgpu_mm_wreg64(struct amdgpu_device *adev, uint32_t reg, uint64_t v)
{
if ((reg * 4) < adev->rmmio_size)
- writeq(v, ((void __iomem *)adev->rmmio) + (reg * 4));
+ atomic64_set((atomic64_t *)(adev->rmmio + (reg * 4)), v);
else
BUG();
}
--
2.17.1
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