erebion/coreboot
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Kconfig: Add option to compress ramstage with LZ4

Browse source 
When ramstage is loaded asynchronously, as on the skyrim boards, the
faster decompression of LZ4 allows for faster boot times than the
tighter compression of LZMA.

To make this change, the name of the existing ramstage_compression
option needs to be updated.

BUG=b:264409477
TEST=Boot skyrim, look at boot speed

Signed-off-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Change-Id: I27dd1a8def024e0efd466cef9ffd9ca71717486a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71673
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Martin Roth 2023-01-04 17:26:21 -07:00 • committed by Martin L Roth
commit 40729a58ea
4 changed files with 35 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

4
src/lib/Makefile.inc
View file

@ -95,7 +95,7 @@ $(foreach arch,$(ARCH_SUPPORTED),\
romstage-y += fmap.c
romstage-y += delay.c
romstage-y += cbfs.c
romstage-$(CONFIG_COMPRESS_RAMSTAGE) += lzma.c lzmadecode.c
romstage-$(CONFIG_COMPRESS_RAMSTAGE_LZMA) += lzma.c lzmadecode.c
romstage-y += libgcc.c
romstage-y += memrange.c
romstage-$(CONFIG_PRIMITIVE_MEMTEST) += primitive_memtest.c
@ -294,7 +294,7 @@ postcar-y += fmap.c
postcar-y += gcc.c
postcar-y += halt.c
postcar-y += libgcc.c
postcar-$(CONFIG_COMPRESS_RAMSTAGE) += lzma.c lzmadecode.c
postcar-$(CONFIG_COMPRESS_RAMSTAGE_LZMA) += lzma.c lzmadecode.c
postcar-y += memchr.c
postcar-y += memcmp.c
postcar-y += prog_loaders.c

2
src/lib/cbfs.c
View file

@ -142,7 +142,7 @@ static inline bool cbfs_lzma_enabled(void)
return false;
if (ENV_ROMSTAGE && CONFIG(POSTCAR_STAGE))
return false;
if ((ENV_ROMSTAGE || ENV_POSTCAR) && !CONFIG(COMPRESS_RAMSTAGE))
if ((ENV_ROMSTAGE || ENV_POSTCAR) && !CONFIG(COMPRESS_RAMSTAGE_LZMA))
return false;
if (ENV_SMM)
return false;