diff mbox

[U-Boot,v3,7/8] mtd/nand/ubi: assortment of alignment fixes

Message ID 1745a3a98dda2ba4d0daec6eca0b9830addb3c0d.1438636040.git.marcel.ziswiler@toradex.com
State Superseded
Delegated to: Tom Rini
Headers show

Commit Message

Marcel Ziswiler Aug. 3, 2015, 9:15 p.m. UTC 
From: Marcel Ziswiler <marcel.ziswiler@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@toradex.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
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/malloc.h             | 8 ++++++++
 lib/gzip.c                   | 2 +-
 6 files changed, 16 insertions(+), 7 deletions(-)

Comments

Scott Wood Aug. 3, 2015, 9:21 p.m. UTC | #1 
On Mon, 2015-08-03 at 23:15 +0200, Marcel Ziswiler wrote:
> diff --git a/include/malloc.h b/include/malloc.h
> index f4da9e6..5933a94 100644
> --- a/include/malloc.h
> +++ b/include/malloc.h
> @@ -955,6 +955,14 @@ extern ulong mem_malloc_brk;
>  
>  void mem_malloc_init(ulong start, ulong size);
>  
> +#include <asm/cache.h>
> +#include <linux/kernel.h>
> +
> +static inline void *malloc_cache_aligned(size_t size)
> +{
> +     return memalign(ARCH_DMA_MINALIGN, ALIGN(size, ARCH_DMA_MINALIGN));
> +}
> +
>  #ifdef __cplusplus
>  };  /* end of extern "C" */
>  #endif

malloc.h is for dlmalloc itself -- please put this somewhere like common.h.

Otherwise, ACK.

-Scott
diff mbox

Patch

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/malloc.h b/include/malloc.h
index f4da9e6..5933a94 100644
--- a/include/malloc.h
+++ b/include/malloc.h
@@ -955,6 +955,14 @@  extern ulong mem_malloc_brk;
 
 void mem_malloc_init(ulong start, ulong size);
 
+#include <asm/cache.h>
+#include <linux/kernel.h>
+
+static inline void *malloc_cache_aligned(size_t size)
+{
+	return memalign(ARCH_DMA_MINALIGN, ALIGN(size, ARCH_DMA_MINALIGN));
+}
+
 #ifdef __cplusplus
 };  /* end of extern "C" */
 #endif
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);
 }