u-boot.git/lib/lzma, branch master

lzma: Add SPDX-License-Identifier lines

2026-01-06T20:44:21+00:00

After consulting https://spdx.org/licenses/ this code should be tagged
with the LZMA-SDK-9.22 identifer, so add them.

Signed-off-by: Tom Rini

lzma: Update LZMA SDK code from 9.20 to 25.01

2026-01-06T20:44:21+00:00

Currently, we have a copy of the LZMA SDK code, version 9.20, with small
updates. The original import of the LZMA SDK included a script to update the
library. This is no longer possible, due to important local changes, so
remove it. We also remove a number of extra text files that should be
unchanged from upstream, but provide no direct value to the project.
Instead, have the help text for LZMA note that this comes from the LZMA
SDK.

Next, we move our code up to the current release, 25.01. There are a
number of new header files, and some performance improvements made to
the code, at the cost of between 2 to 3 kilobytes in binary size. As
there is now a Kconfig option to disable this and retain similar speed
to what we have currently, the default option is to make this trade-off.
Our changes to the code around calling schedule() to avoid the watchdog
being triggered are kept. We add __UBOOT__ guards in two places to
prevent conflict with our own usage of these words on MIPS.

Signed-off-by: Tom Rini

lzma: Add Kconfig options to optimize for size

2026-01-06T20:44:21+00:00

Currently, our LZMA library has an option for optimizing for size,
rather than speed. It is a minimal savings today, and has not been worth
enabling. As this will change in the near future, add options now to
allow disabling it in full U-Boot or in SPL, and enable these on
gardena-smart-gateway-mt7688 which is very close to the size limit
today.

Reviewed-by: Stefan Roese 
Signed-off-by: Tom Rini

lib: Remove duplicate newlines

2024-07-15T18:12:18+00:00

Drop all duplicate newlines. No functional change.

Signed-off-by: Marek Vasut

lib: Remove inclusion from these files

2023-12-21T13:54:37+00:00

After some header file cleanups to add missing include files, remove
common.h from all files in the lib directory. This primarily means just
dropping the line but in a few cases we need to add in other header
files now.

Reviewed-by: Simon Glass 
Signed-off-by: Tom Rini

lzma: Fix decompression speed regression

2023-07-14T19:21:08+00:00

Uncompressing a 1.7Mbytes FIT image on U-boot 2023.04 takes
approx 7s on a powerpc 8xx.
The same on U-boot 2023.07-rc6 takes approx 28s unless watchdog
is disabled.

During that decompression, LzmaDec_DecodeReal() calls schedule
1.6 million times, that is every 4µs in average.

In the past it used to be a call to WATCHDOG_RESET() which was
just calling hw_watchdog_reset().

But the combination of commit 29caf9305b6 ("cyclic: Use schedule()
instead of WATCHDOG_RESET()") and commit 26e8ebcd7cb ("watchdog:
mpc8xxx: Make it generic") results in an heavier processing.

However, there is absolutely no point in calling schedule() that
often.

By moving and keeping only one call to schedule() in the main
loop the number of calls is reduced to 1.2 million which is still
too much. So add logic to only call schedule every 1024 times.
That leads to a call to schedule approx every 6ms which is still
far enough to entertain the watchdog which has a 1s timeout on
powerpc 8xx.

powerpc 8xx being one of the slowest targets we have today in
U-boot, and most other watchdogs having a timeout of one minutes
instead of one second like the 8xx, this fix should not have
negative impact on other targets.

Fixes: 29caf9305b6 ("cyclic: Use schedule() instead of WATCHDOG_RESET()")
Signed-off-by: Christophe Leroy 
Reviewed-by: Simon Glass

cyclic: Use schedule() instead of WATCHDOG_RESET()

2022-09-18T08:26:33+00:00

Globally replace all occurances of WATCHDOG_RESET() with schedule(),
which handles the HW_WATCHDOG functionality and the cyclic
infrastructure.

Signed-off-by: Stefan Roese 
Reviewed-by: Simon Glass 
Tested-by: Tom Rini  [am335x_evm, mx6cuboxi, rpi_3,dra7xx_evm, pine64_plus, am65x_evm, j721e_evm]

lzma: Tidy up the function prototype

2022-04-06T18:01:42+00:00

This should use a const pointer for the input stream. Fix this and also
add a proper comment.

Signed-off-by: Simon Glass

treewide: Use 16-bit Unicode strings

2022-02-03T20:53:28+00:00

At present we use wide characters for Unicode but this is not necessary.
Change the code to use the 'u' literal instead. This helps to fix build
warnings for sandbox on the Raspberry Pi.

Signed-off-by: Simon Glass 
Reviewed-by: Heinrich Schuchardt

common: Drop log.h from common header

2020-05-19T01:19:18+00:00

Move this header out of the common header.

Signed-off-by: Simon Glass