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lib/cbfs: Add CBFS_CACHE_ALIGN Kconfig option 

This option will allow platforms to set the alignment of the cbfs_cache
buffers.

BUG=b:179699789
TEST=gdb -ex 'p cbfs_cache' /tmp/coreboot/guybrush/cbfs/fallback/ramstage.debug
$1 = {buf = 0x0, size = 0, alignment = 8, last_alloc = 0x0, second_to_last_alloc = 0x0, free_offset = 0}

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I74598d4bcbca9a01cc8c65012d7e4ae341d052b1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58706
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This commit is contained in:
Raul E Rangel 2021-07-23 16:43:18 -06:00 committed by Patrick Georgi
parent 5ac82dcc20
commit 6938f353ca
2 changed files with 8 additions and 2 deletions
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6
src/lib/Kconfig
View File

@ -99,6 +99,12 @@ config NO_CBFS_MCACHE
lookup must re-read the same CBFS directory entries from flash to find
the respective file.
config CBFS_CACHE_ALIGN
int
default 8
help
Sets the alignment of the buffers returned by the cbfs_cache.
config PAYLOAD_PRELOAD
bool
depends on COOP_MULTITASKING

4
src/lib/cbfs.c
View File

@ -20,7 +20,7 @@
#if ENV_STAGE_HAS_DATA_SECTION
struct mem_pool cbfs_cache =
MEM_POOL_INIT(_cbfs_cache, REGION_SIZE(cbfs_cache), sizeof(uint64_t));
MEM_POOL_INIT(_cbfs_cache, REGION_SIZE(cbfs_cache), CONFIG_CBFS_CACHE_ALIGN);
#else
struct mem_pool cbfs_cache = MEM_POOL_INIT(NULL, 0, 0);
#endif
@ -29,7 +29,7 @@ static void switch_to_postram_cache(int unused)
{
if (_preram_cbfs_cache != _postram_cbfs_cache)
mem_pool_init(&cbfs_cache, _postram_cbfs_cache, REGION_SIZE(postram_cbfs_cache),
sizeof(uint64_t));
CONFIG_CBFS_CACHE_ALIGN);
}
ROMSTAGE_CBMEM_INIT_HOOK(switch_to_postram_cache);