diff options
| author | Lee Leahy <leroy.p.leahy@intel.com> | 2015-05-08 11:33:55 -0700 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2015-05-13 17:07:51 +0200 |
| commit | 522149c310ad8885cd0b58a88cacac24852a541f (patch) | |
| tree | 03e5a5c6231a741aa88e1c26b8392571b5eab35d /src/lib | |
| parent | 0a50d9b35334d03f13b38e21497ba0aae8b16712 (diff) | |
| download | coreboot-522149c310ad8885cd0b58a88cacac24852a541f.tar.xz | |
cbmem: Add initial allocation support
Add support to allocate a region just below CBMEM root. This region is
reserved for FSP 1.1 to use for its stack and variables.
BRANCH=none
BUG=None
TEST=Build and run on Braswell
Change-Id: I1d4b36ab366e6f8e036335c56c1756f2dfaab3f5
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: http://review.coreboot.org/10148
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/imd_cbmem.c | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/src/lib/imd_cbmem.c b/src/lib/imd_cbmem.c index 0649bf3b17..fc12c2536d 100644 --- a/src/lib/imd_cbmem.c +++ b/src/lib/imd_cbmem.c @@ -30,13 +30,6 @@ #include <arch/acpi.h> #endif -/* The root region is at least DYN_CBMEM_ALIGN_SIZE . */ -#define ROOT_MIN_SIZE DYN_CBMEM_ALIGN_SIZE -#define LG_ALIGN ROOT_MIN_SIZE -/* Small allocation parameters. */ -#define SM_ROOT_SIZE 1024 -#define SM_ALIGN 32 - static inline struct imd *cbmem_get_imd(void) { /* Only supply a backing store for imd in ramstage. */ @@ -116,6 +109,11 @@ static struct imd *imd_init_backing_with_recover(struct imd *backing) void cbmem_initialize_empty(void) { + cbmem_initialize_empty_id_size(0, 0); +} + +void cbmem_initialize_empty_id_size(u32 id, u64 size) +{ struct imd *imd; struct imd imd_backing; @@ -127,12 +125,16 @@ void cbmem_initialize_empty(void) printk(BIOS_DEBUG, "CBMEM:\n"); - if (imd_create_tiered_empty(imd, ROOT_MIN_SIZE, LG_ALIGN, - SM_ROOT_SIZE, SM_ALIGN)) { + if (imd_create_tiered_empty(imd, CBMEM_ROOT_MIN_SIZE, CBMEM_LG_ALIGN, + CBMEM_SM_ROOT_SIZE, CBMEM_SM_ALIGN)) { printk(BIOS_DEBUG, "failed.\n"); return; } + /* Add the specified range first */ + if (size) + cbmem_add(id, size); + /* Complete migration to CBMEM. */ cbmem_run_init_hooks(); } @@ -146,6 +148,11 @@ static inline int cbmem_fail_recovery(void) int cbmem_initialize(void) { + return cbmem_initialize_id_size(0, 0); +} + +int cbmem_initialize_id_size(u32 id, u64 size) +{ struct imd *imd; struct imd imd_backing; @@ -167,6 +174,10 @@ int cbmem_initialize(void) imd_lockdown(imd); #endif + /* Add the specified range first */ + if (size) + cbmem_add(id, size); + /* Complete migration to CBMEM. */ cbmem_run_init_hooks(); |