[coreboot-gerrit] Change in coreboot[master]: soc/intel/common: Add functions into common SMM library

[Subrata Banik (Code Review)]

Subrata Banik has uploaded this change for review. ( https://review.coreboot.org/21268

Change subject: soc/intel/common: Add functions into common SMM library
......................................................................

soc/intel/common: Add functions into common SMM library

This patch to add helper function to get SMM region start
and size based on systemagent common library.

BRANCH=none
BUG=b:63974384
TEST=Build and boot eve successfully.

Change-Id: If10af4a3f6a5bd22db5a03bcd3033a01b1cce0b4
Signed-off-by: Subrata Banik 
---
M src/soc/intel/common/block/include/intelblocks/smm.h
M src/soc/intel/common/block/smm/Makefile.inc
M src/soc/intel/common/block/smm/smm.c
3 files changed, 12 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/68/21268/1

diff --git a/src/soc/intel/common/block/include/intelblocks/smm.h b/src/soc/intel/common/block/include/intelblocks/smm.h
index 09378b9..423c8a8 100644
--- a/src/soc/intel/common/block/include/intelblocks/smm.h
+++ b/src/soc/intel/common/block/include/intelblocks/smm.h
@@ -30,5 +30,7 @@
  */
 void smm_southbridge_clear_state(void);
 void smm_southbridge_enable(void);
+/* API to get SMM region start and size based on Host Bridge register */
+void smm_region(void **start, size_t *size);

#endif
diff --git a/src/soc/intel/common/block/smm/Makefile.inc b/src/soc/intel/common/block/smm/Makefile.inc
index e505625..82a3191 100644
--- a/src/soc/intel/common/block/smm/Makefile.inc
+++ b/src/soc/intel/common/block/smm/Makefile.inc
@@ -1,3 +1,6 @@
+bootblock-$(CONFIG_SOC_INTEL_COMMON_BLOCK_SMM) += smm.c
+romstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_SMM) += smm.c
+postcar-$(CONFIG_SOC_INTEL_COMMON_BLOCK_SMM) += smm.c
 ramstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_SMM) += smm.c
 smm-$(CONFIG_SOC_INTEL_COMMON_BLOCK_SMM) += smihandler.c
 smm-$(CONFIG_SOC_INTEL_COMMON_BLOCK_SMM_IO_TRAP) += smitraphandler.c
diff --git a/src/soc/intel/common/block/smm/smm.c b/src/soc/intel/common/block/smm/smm.c
index 41f3426..5a7f216 100644
--- a/src/soc/intel/common/block/smm/smm.c
+++ b/src/soc/intel/common/block/smm/smm.c
@@ -19,6 +19,7 @@
 #include <cpu/x86/smm.h>
 #include <intelblocks/pmclib.h>
 #include <intelblocks/smm.h>
+#include <intelblocks/systemagent.h>
 #include <soc/pm.h>

void smm_southbridge_clear_state(void)
@@ -77,3 +78,9 @@
    	  "d" (APM_CNT)
    );
 }
+
+void smm_region(void **start, size_t *size)
+{
+	*start = (void *)sa_get_tseg_base();
+	*size = sa_get_tseg_size();
+}