diff options
| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2017-04-19 07:37:38 +0300 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2017-05-18 06:47:34 +0200 |
| commit | a7dd6455942e17708d5d8da3e1f6c22a8f75ac2e (patch) | |
| tree | 3854da0d24ebe6b54f69f1d32baaef4b1cf655ce /src/arch/x86/Kconfig | |
| parent | ae6a4b6d3ca60fc697103cbdaaf5df84502f554e (diff) | |
CBMEM: Add config CBMEM_TOP_BACKUP
AGESA and binaryPI boards have no easy way to determine correct
cbmem_top() location early enough when GFXUMA is enabled, so they
will use these functions with EARLY_CBMEM_INIT as well.
At the end of AmdInitPost() the decisions of UMA base and size
have not been written to hardware yet. The decisions are stored
inside AGESA heap object we cannot locate from coreboot proper
until after AmdInitEnv().
Modify code such that weak backup functions are only defined
for LATE_CBMEM_INIT; they are somewhat troublesome to handle.
Change-Id: Ifef4f75b36bc6dee6cd56d1d9164281d9b2a4f2a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/19306
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/arch/x86/Kconfig')
| -rw-r--r-- | src/arch/x86/Kconfig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/arch/x86/Kconfig b/src/arch/x86/Kconfig index 0c8b97d2f3..e18d6d05dd 100644 --- a/src/arch/x86/Kconfig +++ b/src/arch/x86/Kconfig @@ -111,8 +111,15 @@ config ROMCC bool default n +config CBMEM_TOP_BACKUP + def_bool n + help + Platform implements non-volatile storage to cache cbmem_top() + over stage transitions and optionally also over S3 suspend. + config LATE_CBMEM_INIT def_bool n + select CBMEM_TOP_BACKUP help Enable this in chipset's Kconfig if northbridge does not implement early get_top_of_ram() call for romstage. CBMEM tables will be |