Commit 62649165cb ("lib: sparse: Make CHUNK_TYPE_RAW buffer aligned")
fixed cache alignment for systems with a D-CACHE.
However it introduced some performance regressions [1] on system
flashing huge images, such as Android.
On AM62x SK EVM, we also observe such performance penalty:
Sending sparse 'super' 1/2 (768793 KB) OKAY [ 23.954s]
Writing 'super' OKAY [ 75.926s]
Sending sparse 'super' 2/2 (629819 KB) OKAY [ 19.641s]
Writing 'super' OKAY [ 62.849s]
Finished. Total time: 182.474s
The reason for this is that we use an arbitrary small buffer
(info->blksz * 100) for transferring.
Fix it by using a bigger buffer (info->blksz * FASTBOOT_MAX_BLK_WRITE)
as suggested in the original's patch review [2].
With this patch, performance impact is mitigated:
Sending sparse 'super' 1/2 (768793 KB) OKAY [ 23.912s]
Writing 'super' OKAY [ 15.780s]
Sending sparse 'super' 2/2 (629819 KB) OKAY [ 19.581s]
Writing 'super' OKAY [ 17.192s]
Finished. Total time: 76.569s
[1] https://lore.kernel.org/r/20221118121323.4009193-1-gary.bisson@boundarydevices.com
[2] https://lore.kernel.org/r/all/43e4c17c-4483-ec8e-f843-9b4c5569bd18@seco.com/
Fixes: 62649165cb ("lib: sparse: Make CHUNK_TYPE_RAW buffer aligned")
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
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>
If a chunk was larger than 4GiB, then chunk_data_sz would overflow and
blkcnt would not be calculated correctly. Upgrade it to a u64 and cast
its multiplicands as well. Also fix bytes_written while we're at it.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Move this header out of the common header. Network support is used in
quite a few places but it still does not warrant blanket inclusion.
Note that this net.h header itself has quite a lot in it. It could be
split into the driver-mode support, functions, structures, checksumming,
etc.
Signed-off-by: Simon Glass <sjg@chromium.org>
Introduce CONFIG_IMAGE_SPARSE and CONFIG_CMD_MMC_SWRITE so the "mmc
swrite" command is separated from the fastboot code.
Move image-sparse from common to lib so it's clear it's library code.
Rename CONFIG_FASTBOOT_FLASH_FILLBUF_SIZE to CONFIG_IMAGE_SPARSE_FILLBUF_SIZE
and migrate it to Kconfig.
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
Acked-by: Jassi Brar <jaswinder.singh@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
