[XS] Change in coreboot[main]: src/intel/cmm/block: Update sa_get_tseg_size function

[Wonkyu Kim (Code Review)]

Wonkyu Kim has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/84210?usp=email )

Change subject: src/intel/cmm/block: Update sa_get_tseg_size function
......................................................................

src/intel/cmm/block: Update sa_get_tseg_size function

Use CONFIG_SMM_TSEG_SIZE rather than calulating based on gsm base
and tseg base as gsm base may not be configured when internal graphic
IP is disabled and CONFIG_SMM_TSEG_SIZE is passed by FSP UPD.

Signed-off-by: Wonkyu Kim 
Change-Id: Ic3d5175add1f7dc6e2c9f1c38133b36ffc59e789
---
M src/soc/intel/common/block/systemagent/systemagent_early.c
1 file changed, 4 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/10/84210/1

diff --git a/src/soc/intel/common/block/systemagent/systemagent_early.c b/src/soc/intel/common/block/systemagent/systemagent_early.c
index aecdfbb..773e74c 100644
--- a/src/soc/intel/common/block/systemagent/systemagent_early.c
+++ b/src/soc/intel/common/block/systemagent/systemagent_early.c
@@ -148,6 +148,10 @@

size_t sa_get_tseg_size(void)
 {
+	if (CONFIG_SMM_TSEG_SIZE) {
+		return CONFIG_SMM_TSEG_SIZE;
+	}
+
    return sa_get_gsm_base() - sa_get_tseg_base();
 }