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Makefile.inc: Optimize generating the default x86 fmap 

Put the FMAP FMAP region right above the coreboot CBFS region.
The other regions like RW_MRC_CACHE and CONSOLE often have alignment
requirements so it makes sense to put those on top. This also
simplifies the code the generate the default fmap a little.

Change-Id: I24fa6c89ecf85fb9002c0357f14aa970ee51b1df
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/30419
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Arthur Heymans 2018-12-25 02:31:48 +01:00 committed by Patrick Georgi
parent eaf83489f6
commit 0b75679cbb
2 changed files with 12 additions and 16 deletions
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24
Makefile.inc
View File

@ -852,19 +852,16 @@ FMAP_ROM_SIZE := $(CONFIG_ROM_SIZE)
FMAP_BIOS_BASE := $(call int-subtract, $(CONFIG_ROM_SIZE) $(CONFIG_CBFS_SIZE))
FMAP_BIOS_SIZE := $(shell echo $(CONFIG_CBFS_SIZE) | tr A-F a-f)
# position and size of flashmap, relative to BIOS_BASE
FMAP_FMAP_BASE := 0
FMAP_FMAP_SIZE := 0x200
#
# X86 CONSOLE FMAP region
#
# position, size and entry line of CONSOLE relative to BIOS_BASE, if enabled
FMAP_CONSOLE_BASE := 0
ifeq ($(CONFIG_CONSOLE_SPI_FLASH),y)
FMAP_CONSOLE_BASE := $(call int-add, $(FMAP_FMAP_BASE) $(FMAP_FMAP_SIZE))
FMAP_CONSOLE_SIZE := $(CONFIG_CONSOLE_SPI_FLASH_BUFFER_SIZE)
FMAP_CONSOLE_ENTRY := CONSOLE@$(FMAP_CONSOLE_BASE) $(FMAP_CONSOLE_SIZE)
else # ifeq ($(CONFIG_CONSOLE_SPI_FLASH),y)
FMAP_CONSOLE_BASE := 0
FMAP_CONSOLE_SIZE := 0
FMAP_CONSOLE_ENTRY :=
endif # ifeq ($(CONFIG_CONSOLE_SPI_FLASH),y)
@ -874,13 +871,8 @@ endif # ifeq ($(CONFIG_CONSOLE_SPI_FLASH),y)
#
# position, size and entry line of MRC_CACHE relative to BIOS_BASE, if enabled
ifeq ($(CONFIG_CACHE_MRC_SETTINGS),y)
ifeq ($(CONFIG_CONSOLE_SPI_FLASH),y)
FMAP_MRC_CACHE_BASE := $(call int-align, $(call int-add, $(FMAP_CONSOLE_BASE) \
$(FMAP_CONSOLE_SIZE)), 0x10000)
else
FMAP_MRC_CACHE_BASE := $(call int-align, $(call int-add, $(FMAP_FMAP_BASE) \
$(FMAP_FMAP_SIZE)), 0x10000)
endif
FMAP_MRC_CACHE_SIZE := $(CONFIG_MRC_SETTINGS_CACHE_SIZE)
FMAP_MRC_CACHE_ENTRY := RW_MRC_CACHE@$(FMAP_MRC_CACHE_BASE) $(FMAP_MRC_CACHE_SIZE)
else # ifeq ($(CONFIG_CACHE_MRC_SETTINGS),y)
@ -889,15 +881,19 @@ FMAP_MRC_CACHE_SIZE := 0
FMAP_MRC_CACHE_ENTRY :=
endif # ifeq ($(CONFIG_CACHE_MRC_SETTINGS),y)
#
# X86 FMAP region
#
#
# position, size
FMAP_FMAP_BASE := $(call int-add, $(FMAP_CONSOLE_SIZE) $(FMAP_MRC_CACHE_SIZE))
FMAP_FMAP_SIZE := 0x200
#
# X86 COREBOOT default cbfs FMAP region
#
# position and size of CBFS, relative to BIOS_BASE
ifeq ($(CONFIG_CACHE_MRC_SETTINGS),y)
FMAP_CBFS_BASE := $(call int-add, $(FMAP_MRC_CACHE_BASE) $(FMAP_MRC_CACHE_SIZE))
else
FMAP_CBFS_BASE := $(call int-add, $(FMAP_CONSOLE_SIZE) $(FMAP_FMAP_SIZE))
endif
FMAP_CBFS_BASE := $(call int-add, $(FMAP_FMAP_BASE) $(FMAP_FMAP_SIZE))
FMAP_CBFS_SIZE := $(call int-subtract, $(FMAP_BIOS_SIZE) $(FMAP_CBFS_BASE))
else # ifeq ($(CONFIG_ARCH_X86),y)
DEFAULT_FLASHMAP:=$(top)/util/cbfstool/default.fmd

2
util/cbfstool/default-x86.fmd
View File

@ -9,9 +9,9 @@
FLASH@##ROM_BASE## ##ROM_SIZE## {
BIOS@##BIOS_BASE## ##BIOS_SIZE## {
FMAP@##FMAP_BASE## ##FMAP_SIZE##
##CONSOLE_ENTRY##
##MRC_CACHE_ENTRY##
FMAP@##FMAP_BASE## ##FMAP_SIZE##
COREBOOT(CBFS)@##CBFS_BASE## ##CBFS_SIZE##
}
}