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authorAshish Kumar Mishra <ashish.k.mishra@intel.com>2024-07-04 15:37:19 +0530
committerFelix Held <felix-coreboot@felixheld.de>2024-07-22 14:03:41 +0000
commitae1cdeafa26b026ee73a51039f4bda04bbc3d657 (patch)
tree23de1b63a27ac6e9f59dd7a9fb12340ac1f261de /src/vendorcode
parent203b9fb352f89c112325286cc651596da906a848 (diff)
vc/google/chromeos: Add configurable compression for logo file in cbfs
This patch enables LZMA or LZ4 compression algorithm for the logo cbfs file based on BMP_LOGO_COMPRESS_LZMA or BMP_LOGO_COMPRESS_LZ4 Kconfig. Logo cbfs file is compressed based on CBFS_COMPRESS_FLAG, by default. Based on logo file content and target platform, enabling LZ4 could save significant boot time, with increase in file size. For brox: cb_logo LZ4 is +1265 bytes than LZMA, saves ~0.760ms in decomp. cb_plus_logo LZ4 is +2011 bytes than LZMA, saves ~0.880ms in decomp. BUG=b:337330958 TEST=Able to boot brox and verified firmware splash screen display with LZMA and LZ4 compression. Change-Id: I57fbd0d3a39eaba3fb9d61e7a3fb5eeb44e3a839 Signed-off-by: Ashish Kumar Mishra <ashish.k.mishra@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/83420 Reviewed-by: Karthik Ramasubramanian <kramasub@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/vendorcode')
-rw-r--r--src/vendorcode/google/chromeos/Makefile.mk11
1 files changed, 9 insertions, 2 deletions
diff --git a/src/vendorcode/google/chromeos/Makefile.mk b/src/vendorcode/google/chromeos/Makefile.mk
index af37a0981e..44d4d2b7b5 100644
--- a/src/vendorcode/google/chromeos/Makefile.mk
+++ b/src/vendorcode/google/chromeos/Makefile.mk
@@ -23,12 +23,19 @@ romstage-$(CONFIG_CHROMEOS_DRAM_PART_NUMBER_IN_CBI) += dram_part_num_override.c
ramstage-$(CONFIG_CHROMEOS_FW_SPLASH_SCREEN) += splash.c
# Add logo to the cbfs image
+BMP_LOGO_COMPRESS_FLAG := $(CBFS_COMPRESS_FLAG)
+ifeq ($(CONFIG_BMP_LOGO_COMPRESS_LZMA),y)
+ BMP_LOGO_COMPRESS_FLAG := LZMA
+else ifeq ($(CONFIG_BMP_LOGO_COMPRESS_LZ4),y)
+ BMP_LOGO_COMPRESS_FLAG := LZ4
+endif
+
cbfs-files-$(CONFIG_CHROMEOS_FW_SPLASH_SCREEN) += cb_logo.bmp
cb_logo.bmp-file := $(call strip_quotes,$(CONFIG_CHROMEOS_LOGO_PATH))
cb_logo.bmp-type := raw
-cb_logo.bmp-compression := $(CBFS_COMPRESS_FLAG)
+cb_logo.bmp-compression := $(BMP_LOGO_COMPRESS_FLAG)
cbfs-files-$(CONFIG_CHROMEOS_FW_SPLASH_SCREEN) += cb_plus_logo.bmp
cb_plus_logo.bmp-file := $(call strip_quotes,$(CONFIG_CHROMEBOOK_PLUS_LOGO_PATH))
cb_plus_logo.bmp-type := raw
-cb_plus_logo.bmp-compression := $(CBFS_COMPRESS_FLAG)
+cb_plus_logo.bmp-compression := $(BMP_LOGO_COMPRESS_FLAG)