Loongson has SWIOTLB configured, if without this patch kernel compilation fails. Signed-off-by: Huacai Chen <chenhc@xxxxxxxxxx> Signed-off-by: Hongliang Tao <taohl@xxxxxxxxxx> Signed-off-by: Hua Yan <yanh@xxxxxxxxxx> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx --- drivers/gpu/drm/radeon/radeon_ttm.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index 5b71c71..fc3ac22 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -41,6 +41,10 @@ #include "radeon_reg.h" #include "radeon.h" +#ifdef CONFIG_SWIOTLB +#include <linux/swiotlb.h> +#endif + #define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT) static int radeon_ttm_debugfs_init(struct radeon_device *rdev); -- 1.7.7.3