From 70d92b9465b1edf646b25b89f1442f7107b5f1f6 Mon Sep 17 00:00:00 2001 From: Kyösti Mälkki Date: Wed, 19 Apr 2017 19:57:01 +0300 Subject: CBMEM: Clarify CBMEM_TOP_BACKUP function usage MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The deprecated LATE_CBMEM_INIT function is renamed: set_top_of_ram -> set_late_cbmem_top Obscure term top_of_ram is replaced: backup_top_of_ram -> backup_top_of_low_cacheable get_top_of_ram -> restore_top_of_low_cacheable New function that always resolves to CBMEM top boundary, with or without SMM, is named restore_cbmem_top(). Change-Id: I61d20f94840ad61e9fd55976e5aa8c27040b8fb7 Signed-off-by: Kyösti Mälkki Reviewed-on: https://review.coreboot.org/19377 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin Reviewed-by: Philippe Mathieu-Daudé --- src/northbridge/amd/pi/agesawrapper.c | 4 ++-- src/northbridge/amd/pi/ramtop.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) (limited to 'src/northbridge/amd/pi') diff --git a/src/northbridge/amd/pi/agesawrapper.c b/src/northbridge/amd/pi/agesawrapper.c index ec1d0acf9f..d4b9984f81 100644 --- a/src/northbridge/amd/pi/agesawrapper.c +++ b/src/northbridge/amd/pi/agesawrapper.c @@ -153,9 +153,9 @@ AGESA_STATUS agesawrapper_amdinitpost(void) * UMA may or may not be cacheable, so Sub4GCacheTop could be * higher than UmaBase. With UMA_NONE we see UmaBase==0. */ if (PostParams->MemConfig.UmaBase) - backup_top_of_ram(PostParams->MemConfig.UmaBase << 16); + backup_top_of_low_cacheable(PostParams->MemConfig.UmaBase << 16); else - backup_top_of_ram(PostParams->MemConfig.Sub4GCacheTop); + backup_top_of_low_cacheable(PostParams->MemConfig.Sub4GCacheTop); printk( BIOS_SPEW, diff --git a/src/northbridge/amd/pi/ramtop.c b/src/northbridge/amd/pi/ramtop.c index 2b501dcf05..8fa81c715a 100644 --- a/src/northbridge/amd/pi/ramtop.c +++ b/src/northbridge/amd/pi/ramtop.c @@ -19,13 +19,13 @@ #define CBMEM_TOP_SCRATCHPAD 0x78 -void backup_top_of_ram(uint64_t ramtop) +void backup_top_of_low_cacheable(uintptr_t ramtop) { uint16_t top_cache = ramtop >> 16; pci_write_config16(PCI_DEV(0,0,0), CBMEM_TOP_SCRATCHPAD, top_cache); } -unsigned long get_top_of_ram(void) +uintptr_t restore_top_of_low_cacheable(void) { uint16_t top_cache; top_cache = pci_read_config16(PCI_DEV(0,0,0), CBMEM_TOP_SCRATCHPAD); -- cgit v1.2.3