hexagon: add memset_io() helper

We already have memcpy_toio(), but not memset_io(), so let's
add the obvious version to allow building an allmodconfig kernel
without errors like

drivers/gpu/drm/ttm/ttm_bo_util.c: In function 'ttm_bo_move_memcpy':
drivers/gpu/drm/ttm/ttm_bo_util.c:390:3: error: implicit declaration of function 'memset_io' [-Werror=implicit-function-declaration]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>

diff --git a/arch/hexagon/include/asm/io.h b/arch/hexagon/include/asm/io.h
index 9e8621d94ee9c0ecece44aa76f93810fea1e70fb..e17262ad125e7ee0c48be297dfff08dc50f2d5e6 100644 (file)
--- a/arch/hexagon/include/asm/io.h
+++ b/arch/hexagon/include/asm/io.h
@@ -216,6 +216,12 @@ static inline void memcpy_toio(volatile void __iomem *dst, const void *src,
        memcpy((void *) dst, src, count);
 }
 
+static inline void memset_io(volatile void __iomem *addr, int value,
+                            size_t size)
+{
+       memset((void __force *)addr, value, size);
+}
+
 #define PCI_IO_ADDR    (volatile void __iomem *)
 
 /*