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

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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 <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/21268
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Subrata Banik 2017-08-29 19:04:11 +05:30
parent 73f448f04d
commit 4f62d165df
3 changed files with 12 additions and 0 deletions
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2
src/soc/intel/common/block/include/intelblocks/smm.h
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@ -30,5 +30,7 @@
*/ */
void smm_southbridge_clear_state(void); void smm_southbridge_clear_state(void);
void smm_southbridge_enable(void); void smm_southbridge_enable(void);
/* API to get SMM region start and size based on Host Bridge register */
void smm_region_info(void **start, size_t *size);
#endif #endif

3
src/soc/intel/common/block/smm/Makefile.inc
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@ -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 ramstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_SMM) += smm.c
smm-$(CONFIG_SOC_INTEL_COMMON_BLOCK_SMM) += smihandler.c smm-$(CONFIG_SOC_INTEL_COMMON_BLOCK_SMM) += smihandler.c
smm-$(CONFIG_SOC_INTEL_COMMON_BLOCK_SMM_IO_TRAP) += smitraphandler.c smm-$(CONFIG_SOC_INTEL_COMMON_BLOCK_SMM_IO_TRAP) += smitraphandler.c

7
src/soc/intel/common/block/smm/smm.c
View File

@ -19,6 +19,7 @@
#include <cpu/x86/smm.h> #include <cpu/x86/smm.h>
#include <intelblocks/pmclib.h> #include <intelblocks/pmclib.h>
#include <intelblocks/smm.h> #include <intelblocks/smm.h>
#include <intelblocks/systemagent.h>
#include <soc/pm.h> #include <soc/pm.h>
void smm_southbridge_clear_state(void) void smm_southbridge_clear_state(void)
@ -77,3 +78,9 @@ void smm_setup_structures(void *gnvs, void *tcg, void *smi1)
"d" (APM_CNT) "d" (APM_CNT)
); );
} }
void smm_region_info(void **start, size_t *size)
{
*start = (void *)sa_get_tseg_base();
*size = sa_get_tseg_size();
}