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lib: sparse: Make CHUNK_TYPE_RAW buffer aligned

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CHUNK_TYPE_RAW buffer is not aligned, and flash sparse images by
fastboot will report "Misaligned operation" if DCACHE is enabled.

Flashing Sparse Image
CACHE: Misaligned operation at range [84000028, 84001028]
CACHE: Misaligned operation at range [84001034, 84002034]
CACHE: Misaligned operation at range [8401104c, 8401304c]

Fix it

Signed-off-by: qianfan Zhao <qianfanguijin@163.com>
Reviewed-by: Sean Anderson <sean.anderson@seco.com>
This commit is contained in:
qianfan Zhao
2021-11-16 09:35:38 +08:00
committed by Tom Rini
parent 9b72d934c2
commit 62649165cb
1 changed files with 61 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

69
lib/image-sparse.c
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@@ -46,9 +46,66 @@
#include <asm/cache.h> #include <asm/cache.h>
#include <linux/math64.h> #include <linux/math64.h>
#include <linux/err.h>
static void default_log(const char *ignored, char *response) {} static void default_log(const char *ignored, char *response) {}
static lbaint_t write_sparse_chunk_raw(struct sparse_storage *info,
lbaint_t blk, lbaint_t blkcnt,
void *data,
char *response)
{
lbaint_t n = blkcnt, write_blks, blks = 0, aligned_buf_blks = 100;
uint32_t *aligned_buf = NULL;
if (CONFIG_IS_ENABLED(SYS_DCACHE_OFF)) {
write_blks = info->write(info, blk, n, data);
if (write_blks < n)
goto write_fail;
return write_blks;
}
aligned_buf = memalign(ARCH_DMA_MINALIGN, info->blksz * aligned_buf_blks);
if (!aligned_buf) {
info->mssg("Malloc failed for: CHUNK_TYPE_RAW", response);
return -ENOMEM;
}
while (blkcnt > 0) {
n = min(aligned_buf_blks, blkcnt);
memcpy(aligned_buf, data, n * info->blksz);
/* write_blks might be > n due to NAND bad-blocks */
write_blks = info->write(info, blk + blks, n, aligned_buf);
if (write_blks < n) {
free(aligned_buf);
goto write_fail;
}
blks += write_blks;
data += n * info->blksz;
blkcnt -= n;
}
free(aligned_buf);
return blks;
write_fail:
if (IS_ERR_VALUE(write_blks)) {
printf("%s: Write failed, block #" LBAFU " [" LBAFU "] (%lld)\n",
__func__, blk + blks, n, (long long)write_blks);
info->mssg("flash write failure", response);
return write_blks;
}
/* write_blks < n */
printf("%s: Write failed, block #" LBAFU " [" LBAFU "]\n",
__func__, blk + blks, n);
info->mssg("flash write failure(incomplete)", response);
return -1;
}
int write_sparse_image(struct sparse_storage *info, int write_sparse_image(struct sparse_storage *info,
const char *part_name, void *data, char *response) const char *part_name, void *data, char *response)
{ {
@@ -152,15 +209,11 @@ int write_sparse_image(struct sparse_storage *info,
return -1; return -1;
} }
blks = info->write(info, blk, blkcnt, data); blks = write_sparse_chunk_raw(info, blk, blkcnt,
/* blks might be > blkcnt (eg. NAND bad-blocks) */ data, response);
if (blks < blkcnt) { if (blks < 0)
printf("%s: %s" LBAFU " [" LBAFU "]\n",
__func__, "Write failed, block #",
blk, blks);
info->mssg("flash write failure", response);
return -1; return -1;
}
blk += blks; blk += blks;
bytes_written += ((u64)blkcnt) * info->blksz; bytes_written += ((u64)blkcnt) * info->blksz;
total_blocks += chunk_header->chunk_sz; total_blocks += chunk_header->chunk_sz;