[PATCH] drm/amdgpu: fix compile error about readq/writeq on arm ARCH

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readq/writeq can't be found on arm architecture, implement them
with 32 bits operations

Signed-off-by: Tao Zhou <tao.zhou1@xxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index f62d4f30e810..aaf7f31cf8df 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -29,6 +29,7 @@
 #include <linux/kthread.h>
 #include <linux/console.h>
 #include <linux/slab.h>
+#include <linux/io-64-nonatomic-lo-hi.h>
 #include <drm/drmP.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_probe_helper.h>
-- 
2.17.1

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