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intel/common: compress VBT

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It's pretty well compressible which helps when space is tight.
The code encodes the assumption that the VBT is 8kb or less. Haven't
seen a larger one yet.

BUG=b:77971803,b:78541692
TEST=build, see that vbt.bin is compressed, boot, check log that the
reported VBT size is correct.

Change-Id: Ie25bca21d9edc408f441a292bbe2ab0459948ec4
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/25927
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Patrick Georgi 2018-04-30 15:14:35 +02:00
commit 77034fa7d4
2 changed files with 15 additions and 21 deletions
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src/drivers/intel/gma/Makefile.inc
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@ -24,6 +24,7 @@ ramstage-$(CONFIG_INTEL_GMA_ACPI) += opregion.c
cbfs-files-$(CONFIG_INTEL_GMA_ADD_VBT_DATA_FILE) += vbt.bin
vbt.bin-file := $(call strip_quotes,$(CONFIG_INTEL_GMA_VBT_FILE))
vbt.bin-type := raw
vbt.bin-compression := lzma
ifeq ($(CONFIG_MAINBOARD_USE_LIBGFXINIT),y)