Add support to run SMM handler in TSEG instead of ASEG

[coreboot.git] / src / include / cpu / x86 / smm.h

diff --git a/src/include/cpu/x86/smm.h b/src/include/cpu/x86/smm.h
index c4a57470b2d7237b8719f178076debb57fb7271a..60959f52f69219885d119cc5b3ba36a6034417fb 100644 (file)
--- a/src/include/cpu/x86/smm.h
+++ b/src/include/cpu/x86/smm.h
@@ -17,10 +17,17 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
-
-/* AMD64 SMM State-Save Area 
+/* AMD64 SMM State-Save Area
  * starts @ 0x7e00
  */
+
+#ifndef CPU_X86_SMM_H
+#define CPU_X86_SMM_H
+
+/* used only by C programs so far */
+#define SMM_BASE 0xa0000
+
+#include <types.h>
 typedef struct {
        u16     es_selector;
        u16     es_attributes;
@@ -116,7 +123,7 @@ typedef struct {
 } __attribute__((packed)) amd64_smm_state_save_area_t;
 
 
-/* Intel Core 2 (EM64T) SMM State-Save Area 
+/* Intel Core 2 (EM64T) SMM State-Save Area
  * starts @ 0x7d00
  */
 typedef struct {
@@ -194,7 +201,7 @@ typedef struct {
 } __attribute__((packed)) em64t_smm_state_save_area_t;
 
 
-/* Legacy x86 SMM State-Save Area 
+/* Legacy x86 SMM State-Save Area
  * starts @ 0x7e00
  */
 
@@ -249,11 +256,32 @@ typedef struct {
        };
 } smm_state_save_area_t;
 
+#define APM_CNT                0xb2
+#define APM_CNT_CST_CONTROL    0x85
+#define APM_CNT_PST_CONTROL    0x80
+#define APM_CNT_ACPI_DISABLE   0x1e
+#define APM_CNT_ACPI_ENABLE    0xe1
+#define APM_CNT_MBI_UPDATE     0xeb
+#define APM_CNT_GNVS_UPDATE    0xea
+#define APM_STS                0xb3
 
 /* SMI handler function prototypes */
+void smi_handler(u32 smm_revision);
+
 void io_trap_handler(int smif);
 int southbridge_io_trap_handler(int smif);
-int mainboard_io_trap_handler(int smif);
+int __attribute__((weak)) mainboard_io_trap_handler(int smif);
+
+void southbridge_smi_set_eos(void);
+
+void __attribute__((weak)) cpu_smi_handler(unsigned int node, smm_state_save_area_t *state_save);
+void __attribute__((weak)) northbridge_smi_handler(unsigned int node, smm_state_save_area_t *state_save);
+void __attribute__((weak)) southbridge_smi_handler(unsigned int node, smm_state_save_area_t *state_save);
 
-void southbridge_smi_handler(unsigned int node, smm_state_save_area_t *state_save);
+void __attribute__((weak)) mainboard_smi_gpi(u16 gpi_sts);
+int __attribute__((weak)) mainboard_apm_cnt(u8 data);
+#if !CONFIG_SMM_TSEG
+void smi_release_lock(void);
+#endif
 
+#endif