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spl: fit: Allocate buffers aligned to cache line size

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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>
This commit is contained in:
Stefan Herbrechtsmeier
2022-06-14 16:12:00 +02:00
committed by Tom Rini
parent c0facda197
commit 77253c50ab
1 changed files with 5 additions and 3 deletions
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8
common/spl/spl_fit.c
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@@ -10,7 +10,7 @@
#include <gzip.h> #include <gzip.h>
#include <image.h> #include <image.h>
#include <log.h> #include <log.h>
#include <malloc.h> #include <memalign.h>
#include <mapmem.h> #include <mapmem.h>
#include <spl.h> #include <spl.h>
#include <sysinfo.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 * depending on how the overlay is stored, so
* don't fail yet if the allocation failed. * 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) if (!tmpbuffer)
debug("%s: unable to allocate space for overlays\n", debug("%s: unable to allocate space for overlays\n",
__func__); __func__);
@@ -537,7 +539,7 @@ static void *spl_get_fit_load_buffer(size_t size)
{ {
void *buf; void *buf;
buf = malloc(size); buf = malloc_cache_aligned(size);
if (!buf) { if (!buf) {
pr_err("Could not get FIT buffer of %lu bytes\n", (ulong)size); pr_err("Could not get FIT buffer of %lu bytes\n", (ulong)size);
pr_err("\tcheck CONFIG_SYS_SPL_MALLOC_SIZE\n"); pr_err("\tcheck CONFIG_SYS_SPL_MALLOC_SIZE\n");