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-rw-r--r--src/arch/x86/car.ld7
-rw-r--r--src/soc/intel/xeon_sp/cpx/Kconfig15
2 files changed, 19 insertions, 3 deletions
diff --git a/src/arch/x86/car.ld b/src/arch/x86/car.ld
index 63145f153e..68144c9d43 100644
--- a/src/arch/x86/car.ld
+++ b/src/arch/x86/car.ld
@@ -7,6 +7,7 @@
. = CONFIG_DCACHE_RAM_BASE;
.car.data . (NOLOAD) : {
_car_region_start = . ;
+ . += CONFIG_FSP_M_RC_HEAP_SIZE;
#if CONFIG(PAGING_IN_CACHE_AS_RAM)
/* Page table pre-allocation. CONFIG_DCACHE_RAM_BASE should be 4KiB
* aligned when using this option. */
@@ -83,6 +84,12 @@
_car_region_end = . + CONFIG_DCACHE_RAM_SIZE - (. - _car_region_start)
- CONFIG_FSP_T_RESERVED_SIZE;
}
+
+. = _car_region_start;
+.car.fspm_rc_heap . (NOLOAD) : {
+. += CONFIG_FSP_M_RC_HEAP_SIZE;
+}
+
. = _car_region_end;
.car.mrc_var . (NOLOAD) : {
. += CONFIG_DCACHE_RAM_MRC_VAR_SIZE;
diff --git a/src/soc/intel/xeon_sp/cpx/Kconfig b/src/soc/intel/xeon_sp/cpx/Kconfig
index 7b583cd14a..ded69987ea 100644
--- a/src/soc/intel/xeon_sp/cpx/Kconfig
+++ b/src/soc/intel/xeon_sp/cpx/Kconfig
@@ -43,13 +43,22 @@ config DCACHE_RAM_SIZE
config DCACHE_BSP_STACK_SIZE
hex
- default 0x140000
+ default 0x40000
help
The amount of anticipated stack usage in CAR by bootblock and
other stages. It needs to include FSP-M stack requirement and
CB romstage stack requirement. The integration documentation
- says this needs to be 256KiB, but practice show this needs to
- be a lot more.
+ says this needs to be 256KiB.
+
+config FSP_M_RC_HEAP_SIZE
+ hex
+ default 0x130000
+ help
+ On xeon_sp/cpx FSP-M has two separate heap managers, one regular
+ whose size and base are controllable via the StackBase and
+ StackSize UPDs and a 'rc' heap manager that is statically
+ allocated at 0xfe800000 (the CAR base) and consumes about 0x130000
+ bytes of memory.
config CPU_MICROCODE_CBFS_LOC
hex