[U-Boot] [PATCH v5] mtd/nand/ubi: assortment of alignment fixes
Marcel Ziswiler
marcel at ziswiler.com
Tue Aug 4 08:57:54 CEST 2015
From: Marcel Ziswiler <marcel.ziswiler at toradex.com>
Various U-Boot adoptions/extensions to MTD/NAND/UBI did not take buffer
alignment into account which led to failures of the following form:
ERROR: v7_dcache_inval_range - start address is not aligned - 0x1f7f0108
ERROR: v7_dcache_inval_range - stop address is not aligned - 0x1f7f1108
Signed-off-by: Marcel Ziswiler <marcel.ziswiler at toradex.com>
Reviewed-by: Simon Glass <sjg at chromium.org>
Acked-by: Scott Wood <scottwood at freescale.com>
---
Changes in v5: split up into separate patches to be picked up by the
various subsystem maintainers as suggested by Marek
Changes in v4: move wrapper to common.h as suggested by Scott
Changes in v3: introduce malloc_cache_aligned() as suggested by Scott
Changes in v2: run it through checkpatch.pl and fix long lines
common/cmd_ubi.c | 2 +-
drivers/mtd/nand/nand_util.c | 2 +-
fs/ubifs/super.c | 5 +++--
fs/ubifs/ubifs.c | 4 ++--
include/common.h | 7 +++++++
lib/gzip.c | 2 +-
6 files changed, 15 insertions(+), 7 deletions(-)
diff --git a/common/cmd_ubi.c b/common/cmd_ubi.c
index cbc10c5..10eea65 100644
--- a/common/cmd_ubi.c
+++ b/common/cmd_ubi.c
@@ -363,7 +363,7 @@ int ubi_volume_read(char *volume, char *buf, size_t size)
tbuf_size = vol->usable_leb_size;
if (size < tbuf_size)
tbuf_size = ALIGN(size, ubi->min_io_size);
- tbuf = malloc(tbuf_size);
+ tbuf = malloc_cache_aligned(tbuf_size);
if (!tbuf) {
printf("NO MEM\n");
return ENOMEM;
diff --git a/drivers/mtd/nand/nand_util.c b/drivers/mtd/nand/nand_util.c
index ee2c24d..21b4a61 100644
--- a/drivers/mtd/nand/nand_util.c
+++ b/drivers/mtd/nand/nand_util.c
@@ -839,7 +839,7 @@ int nand_torture(nand_info_t *nand, loff_t offset)
patt_count = ARRAY_SIZE(patterns);
- buf = malloc(nand->erasesize);
+ buf = malloc_cache_aligned(nand->erasesize);
if (buf == NULL) {
puts("Out of memory for erase block buffer\n");
return -ENOMEM;
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 10f8fff..0bf52db 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -57,7 +57,8 @@ struct inode *iget_locked(struct super_block *sb, unsigned long ino)
{
struct inode *inode;
- inode = (struct inode *)malloc(sizeof(struct ubifs_inode));
+ inode = (struct inode *)malloc_cache_aligned(
+ sizeof(struct ubifs_inode));
if (inode) {
inode->i_ino = ino;
inode->i_sb = sb;
@@ -104,7 +105,7 @@ void iput(struct inode *inode)
/*
* Allocate and use new inode
*/
- ino = (struct inode *)malloc(sizeof(struct ubifs_inode));
+ ino = (struct inode *)malloc_cache_aligned(sizeof(struct ubifs_inode));
memcpy(ino, inode, sizeof(struct ubifs_inode));
/*
diff --git a/fs/ubifs/ubifs.c b/fs/ubifs/ubifs.c
index 6dd6174..4daa7fa 100644
--- a/fs/ubifs/ubifs.c
+++ b/fs/ubifs/ubifs.c
@@ -108,7 +108,7 @@ static inline struct crypto_comp *crypto_alloc_comp(const char *alg_name,
struct crypto_comp *ptr;
int i = 0;
- ptr = malloc(sizeof(struct crypto_comp));
+ ptr = malloc_cache_aligned(sizeof(struct crypto_comp));
while (i < UBIFS_COMPR_TYPES_CNT) {
comp = ubifs_compressors[i];
if (!comp) {
@@ -723,7 +723,7 @@ static int do_readpage(struct ubifs_info *c, struct inode *inode,
* destination area to a multiple of
* UBIFS_BLOCK_SIZE.
*/
- buff = malloc(UBIFS_BLOCK_SIZE);
+ buff = malloc_cache_aligned(UBIFS_BLOCK_SIZE);
if (!buff) {
printf("%s: Error, malloc fails!\n",
__func__);
diff --git a/include/common.h b/include/common.h
index 4566bd1..3f02e82 100644
--- a/include/common.h
+++ b/include/common.h
@@ -1010,6 +1010,13 @@ int cpu_release(int nr, int argc, char * const argv[]);
#define DEFINE_CACHE_ALIGN_BUFFER(type, name, size) \
DEFINE_ALIGN_BUFFER(type, name, size, ARCH_DMA_MINALIGN)
+#include <malloc.h>
+
+static inline void *malloc_cache_aligned(size_t size)
+{
+ return memalign(ARCH_DMA_MINALIGN, ALIGN(size, ARCH_DMA_MINALIGN));
+}
+
/*
* check_member() - Check the offset of a structure member
*
diff --git a/lib/gzip.c b/lib/gzip.c
index ff37d4f..cd8e9fe 100644
--- a/lib/gzip.c
+++ b/lib/gzip.c
@@ -25,7 +25,7 @@ static void *zalloc(void *x, unsigned items, unsigned size)
size *= items;
size = (size + ZALLOC_ALIGNMENT - 1) & ~(ZALLOC_ALIGNMENT - 1);
- p = malloc (size);
+ p = malloc_cache_aligned(size);
return (p);
}
--
2.4.3
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