drm/amdgpu: use uintptr_t instead of unsigned long to store pointer

Signed-off-by: Alex Xie <AlexBin.Xie@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c

@@ -161,7 +161,7 @@ int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data)
 	}
 
 	/* get chunks */
-	chunk_array_user = (uint64_t __user *)(unsigned long)(cs->in.chunks);
+	chunk_array_user = (uint64_t __user *)(uintptr_t)(cs->in.chunks);
 	if (copy_from_user(chunk_array, chunk_array_user,
 			   sizeof(uint64_t)*cs->in.num_chunks)) {
 		ret = -EFAULT;
@@ -181,7 +181,7 @@ int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data)
 		struct drm_amdgpu_cs_chunk user_chunk;
 		uint32_t __user *cdata;
 
-		chunk_ptr = (void __user *)(unsigned long)chunk_array[i];
+		chunk_ptr = (void __user *)(uintptr_t)chunk_array[i];
 		if (copy_from_user(&user_chunk, chunk_ptr,
 				       sizeof(struct drm_amdgpu_cs_chunk))) {
 			ret = -EFAULT;
@@ -192,7 +192,7 @@ int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data)
 		p->chunks[i].length_dw = user_chunk.length_dw;
 
 		size = p->chunks[i].length_dw;
-		cdata = (void __user *)(unsigned long)user_chunk.chunk_data;
+		cdata = (void __user *)(uintptr_t)user_chunk.chunk_data;
 
 		p->chunks[i].kdata = drm_malloc_ab(size, sizeof(uint32_t));
 		if (p->chunks[i].kdata == NULL) {
@@ -1339,7 +1339,7 @@ int amdgpu_cs_wait_fences_ioctl(struct drm_device *dev, void *data,
 	if (fences == NULL)
 		return -ENOMEM;
 
-	fences_user = (void __user *)(unsigned long)(wait->in.fences);
+	fences_user = (void __user *)(uintptr_t)(wait->in.fences);
 	if (copy_from_user(fences, fences_user,
 		sizeof(struct drm_amdgpu_fence) * fence_count)) {
 		r = -EFAULT;