diff options
Diffstat (limited to 'src/soc/amd/picasso/memmap.c')
| -rw-r--r-- | src/soc/amd/picasso/memmap.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/soc/amd/picasso/memmap.c b/src/soc/amd/picasso/memmap.c index 5f4ba42da1..42a330726e 100644 --- a/src/soc/amd/picasso/memmap.c +++ b/src/soc/amd/picasso/memmap.c @@ -4,12 +4,14 @@ #include <assert.h> #include <stdint.h> +#include <cbmem.h> #include <console/console.h> #include <cpu/x86/smm.h> #include <cpu/amd/msr.h> #include <memrange.h> #include <fsp/util.h> #include <FspGuids.h> +#include <soc/memmap.h> /* * For data stored in TSEG, ensure TValid is clear so R/W access can reach @@ -57,3 +59,26 @@ void smm_region(uintptr_t *start, size_t *size) once = 1; } } + +void memmap_stash_early_dram_usage(void) +{ + struct memmap_early_dram *e; + + e = cbmem_add(CBMEM_ID_CB_EARLY_DRAM, sizeof(*e)); + + if (!e) + die("ERROR: Failed to stash early dram usage!\n"); + + e->base = (uint32_t)(uintptr_t)_early_reserved_dram; + e->size = REGION_SIZE(early_reserved_dram); +} + +const struct memmap_early_dram *memmap_get_early_dram_usage(void) +{ + struct memmap_early_dram *e = cbmem_find(CBMEM_ID_CB_EARLY_DRAM); + + if (!e) + die("ERROR: Failed to read early dram usage!\n"); + + return e; +} |