From: Stefan Herbrechtsmeier stefan.herbrechtsmeier@weidmueller.com

Allocate memory for buffers at a cache-line boundary to avoid misaligned buffer address for subsequent reads. This avoids an additional sector-based memory copy in the fat file system driver:

FAT: Misaligned buffer address (...)

Signed-off-by: Stefan Herbrechtsmeier stefan.herbrechtsmeier@weidmueller.com

---

common/spl/spl_fit.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/common/spl/spl_fit.c b/common/spl/spl_fit.c index 1bbf824684..d61e1556ae 100644 --- a/common/spl/spl_fit.c +++ b/common/spl/spl_fit.c @@ -10,7 +10,7 @@ #include <gzip.h> #include <image.h> #include <log.h> -#include <malloc.h> +#include <memalign.h> #include <mapmem.h> #include <spl.h> #include <sysinfo.h> @@ -429,7 +429,9 @@ static int spl_fit_append_fdt(struct spl_image_info *spl_image, * depending on how the overlay is stored, so * don't fail yet if the allocation failed. */ - tmpbuffer = malloc(CONFIG_SPL_LOAD_FIT_APPLY_OVERLAY_BUF_SZ); + size_t size = CONFIG_SPL_LOAD_FIT_APPLY_OVERLAY_BUF_SZ; + + tmpbuffer = malloc_cache_aligned(size); if (!tmpbuffer) debug("%s: unable to allocate space for overlays\n", __func__); @@ -537,7 +539,7 @@ static void *spl_get_fit_load_buffer(size_t size) { void *buf;

- buf = malloc(size); + buf = malloc_cache_aligned(size); if (!buf) { pr_err("Could not get FIT buffer of %lu bytes\n", (ulong)size); pr_err("\tcheck CONFIG_SYS_SPL_MALLOC_SIZE\n");