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CBMEM: Always select CAR_MIGRATION

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If romstage does not make cbmem_initialize() call, linker should
optimize the code for CAR migration away.

This simplifies design of CBMEM console by a considerable amount.
As console buffer is now migrated within cbmem_initialize() call there
is no longer need for cbmemc_reinit() call made at end of romstage.

Change-Id: I8675ecaafb641fa02675e9ba3f374caa8e240f1d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3916
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
This commit is contained in:
Kyösti Mälkki
2013-09-10 00:07:21 +03:00
parent de1fe7f655
commit cbf5bdfe67
24 changed files with 14 additions and 121 deletions
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9
src/cpu/x86/Kconfig
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@@ -115,12 +115,3 @@ config X86_AMD_FIXED_MTRRS
help
This option informs the MTRR code to use the RdMem and WrMem fields
in the fixed MTRR MSRs.
config CAR_MIGRATION
def_bool n
depends on DYNAMIC_CBMEM || EARLY_CBMEM_INIT
help
Migrate the cache-as-ram variables to CBMEM once CBMEM is set up
in romstage. This option is only needed if one will be doing more
work in romstage after the cache-as-ram is torn down aside from
loading ramstage.

2
src/cpu/x86/Makefile.inc
View File

@@ -1 +1 @@
romstage-$(CONFIG_CAR_MIGRATION) += car.c
romstage-$(CONFIG_CACHE_AS_RAM) += car.c