Patrick Georgi submitted this change.
soc/intel/skylake: Enable compression on FSP-S
Use LZ4 algorithm to compress FSP-S. This saves ~40 KiB and reduces the
boot time by ~7 ms. LZMA would save a further ~1 KiB, but adds ~9 ms to
the boot time.
LZMA size:
fsps_lzma.bin 0xb0dc0 fsp 146578 LZMA (188416 decompressed)
LZMA decompression time:
15:starting LZMA decompress (ignore for x86) 388,716 (47,646)
16:finished LZMA decompress (ignore for x86) 406,167 (17,450)
LZ4 size:
fsps_lz4.bin 0x242dc0 fsp 147442 LZ4 (188416 decompressed)
LZ4 decompression time:
17:starting LZ4 decompress (ignore for x86) 384,736 (47,864)
18:finished LZ4 decompress (ignore for x86) 384,796 (59)
Change-Id: Idace01227cfd2312b2c4c4ea1e6aaac8c21cd6b0
Signed-off-by: Benjamin Doron <benjamin.doron00@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50726
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
---
M src/soc/intel/skylake/Kconfig
1 file changed, 1 insertion(+), 0 deletions(-)
diff --git a/src/soc/intel/skylake/Kconfig b/src/soc/intel/skylake/Kconfig
index 781cdbf..b8da13c 100644
--- a/src/soc/intel/skylake/Kconfig
+++ b/src/soc/intel/skylake/Kconfig
@@ -25,6 +25,7 @@
select CPU_INTEL_COMMON
select CPU_INTEL_FIRMWARE_INTERFACE_TABLE
select CPU_SUPPORTS_PM_TIMER_EMULATION
+ select FSP_COMPRESS_FSP_S_LZ4
select FSP_M_XIP
select FSP_STATUS_GLOBAL_RESET_REQUIRED_3
select GENERIC_GPIO_LIB
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