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-rw-r--r--src/soc/amd/common/block/cpu/noncar/memmap.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/src/soc/amd/common/block/cpu/noncar/memmap.c b/src/soc/amd/common/block/cpu/noncar/memmap.c
index dd057c05fa..8cd9ec8998 100644
--- a/src/soc/amd/common/block/cpu/noncar/memmap.c
+++ b/src/soc/amd/common/block/cpu/noncar/memmap.c
@@ -37,12 +37,16 @@ const struct memmap_early_dram *memmap_get_early_dram_usage(void)
void smm_region(uintptr_t *start, size_t *size)
{
static int once;
- struct range_entry tseg;
+ static uintptr_t smm_start;
+ static size_t smm_size;
int status;
- *start = 0;
- *size = 0;
+ *start = smm_start;
+ *size = smm_size;
+ if (*size && *start)
+ return;
+ struct range_entry tseg;
status = fsp_find_range_hob(&tseg, AMD_FSP_TSEG_HOB_GUID.b);
if (status < 0) {
@@ -50,8 +54,10 @@ void smm_region(uintptr_t *start, size_t *size)
return;
}
- *start = (uintptr_t)range_entry_base(&tseg);
- *size = range_entry_size(&tseg);
+ smm_start = (uintptr_t)range_entry_base(&tseg);
+ smm_size = range_entry_size(&tseg);
+ *start = smm_start;
+ *size = smm_size;
if (!once) {
clear_tvalid();