tree ad794077ca0876d901785f2c9cff12245daba256
parent 7729b29a589ca971a3122731ffc043039813279d
author Aaron Durbin <adurbin@chromium.org> 1589583718 -0600
committer Aaron Durbin <adurbin@chromium.org> 1590698014 +0000

drivers/intel/fsp2_0: add option to compress FSP-M in cbfs

Allow the ability for chipset or mainboard to choose to
compress FSP-M in cbfs using LZMA or LZ4 routines. However, only
non-XIP platforms will support FSP-M compression. Since the main
cbfs decompression paths are utilized add the appropriate checks
for including compression algorithms under the FSP-M compression
options.

On picasso FSP-M (debug builds) the following savings were measured:
no-compression:
	fspm.bin	720896	none
FSP_COMPRESS_FSP_M_LZ4:
	fspm.bin	138379	LZ4  (720896 decompressed)	-80%
FSP_COMPRESS_FSP_M_LZMA:
	fspm.bin	98921	LZMA (720896 decompressed)	-86%

BUG=b:155322763,b:150746858,b:152909132

Change-Id: I5c88510c134b56a36ff1cd97a64b51ab2fea0ab0
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41450
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>