lib: sparse: Make CHUNK_TYPE_RAW buffer aligned
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>
diff --git a/lib/image-sparse.c b/lib/image-sparse.c
index d80fdbb..5ec0f94 100644
--- a/lib/image-sparse.c
+++ b/lib/image-sparse.c
@@ -46,9 +46,66 @@
#include <asm/cache.h>
#include <linux/math64.h>
+#include <linux/err.h>
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,
const char *part_name, void *data, char *response)
{
@@ -152,15 +209,11 @@
return -1;
}
- blks = info->write(info, blk, blkcnt, data);
- /* blks might be > blkcnt (eg. NAND bad-blocks) */
- if (blks < blkcnt) {
- printf("%s: %s" LBAFU " [" LBAFU "]\n",
- __func__, "Write failed, block #",
- blk, blks);
- info->mssg("flash write failure", response);
+ blks = write_sparse_chunk_raw(info, blk, blkcnt,
+ data, response);
+ if (blks < 0)
return -1;
- }
+
blk += blks;
bytes_written += ((u64)blkcnt) * info->blksz;
total_blocks += chunk_header->chunk_sz;