cpu/x86/smm: Promote smm_subregion()

No need to limit these declarations to FSP. Both
PARALLEL_MP_INIT smm_relocate() and TSEG_STAGE_CACHE
can be built on top of this.

Change-Id: I7b0b9b8c8bee03aabe251c50c47dc42f6596e169
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34701
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/soc/intel/apollolake/cpu.c

@@ -29,10 +29,10 @@
 #include <cpu/intel/turbo.h>
 #include <cpu/x86/msr.h>
 #include <cpu/x86/mtrr.h>
+#include <cpu/x86/smm.h>
 #include <device/device.h>
 #include <device/pci.h>
 #include <fsp/api.h>
-#include <fsp/memmap.h>
 #include <intelblocks/cpulib.h>
 #include <intelblocks/fast_spi.h>
 #include <intelblocks/mp_init.h>

src/soc/intel/apollolake/memmap.c

@@ -18,8 +18,8 @@
 #include <assert.h>
 #include <cbmem.h>
 #include <console/console.h>
+#include <cpu/x86/smm.h>
 #include <device/pci.h>
-#include <fsp/memmap.h>
 #include <intelblocks/smm.h>
 #include <soc/systemagent.h>
 #include <soc/pci_devs.h>

src/soc/intel/apollolake/romstage.c

@@ -27,10 +27,10 @@
 #include <cpu/x86/mtrr.h>
 #include <cpu/x86/pae.h>
 #include <delay.h>
+#include <cpu/x86/smm.h>
 #include <device/pci_def.h>
 #include <device/resource.h>
 #include <fsp/api.h>
-#include <fsp/memmap.h>
 #include <fsp/util.h>
 #include <intelblocks/cpulib.h>
 #include <intelblocks/lpc_lib.h>

src/soc/intel/braswell/cpu.c

@@ -26,7 +26,6 @@
 #include <cpu/x86/msr.h>
 #include <cpu/x86/mtrr.h>
 #include <cpu/x86/smm.h>
-#include <fsp/memmap.h>
 #include <reg_script.h>
 #include <soc/iosf.h>
 #include <soc/msr.h>

src/soc/intel/braswell/memmap.c

@@ -15,7 +15,7 @@
  */
 
 #include <cbmem.h>
-#include <fsp/memmap.h>
+#include <cpu/x86/smm.h>
 #include <soc/iosf.h>
 #include <soc/smm.h>
 

src/soc/intel/braswell/northcluster.c

@@ -21,8 +21,8 @@
 #include <device/device.h>
 #include <device/pci.h>
 #include <device/pci_ids.h>
-#include <fsp/memmap.h>
 #include <cpu/x86/lapic.h>
+#include <cpu/x86/smm.h>
 #include <fsp/util.h>
 #include <soc/iomap.h>
 #include <soc/iosf.h>

src/soc/intel/cannonlake/include/soc/smm.h

@@ -19,7 +19,7 @@
 
 #include <stdint.h>
 #include <cpu/x86/msr.h>
-#include <fsp/memmap.h>
+#include <cpu/x86/smm.h>
 #include <soc/gpio.h>
 
 struct ied_header {

src/soc/intel/common/block/include/intelblocks/smm.h

@@ -32,7 +32,5 @@
  */
 void smm_southbridge_clear_state(void);
 void smm_southbridge_enable(uint16_t pm1_events);
-/* API to get SMM region start and size based on Host Bridge register */
-void smm_region_info(void **start, size_t *size);
 
 #endif

src/soc/intel/common/block/smm/smm.c

@@ -18,7 +18,6 @@
 #include <bootstate.h>
 #include <console/console.h>
 #include <cpu/x86/smm.h>
-#include <fsp/memmap.h>
 #include <intelblocks/pmclib.h>
 #include <intelblocks/smm.h>
 #include <intelblocks/systemagent.h>

src/soc/intel/denverton_ns/cpu.c

@@ -21,6 +21,7 @@
 #include <cpu/x86/mp.h>
 #include <cpu/x86/msr.h>
 #include <cpu/x86/mtrr.h>
+#include <cpu/x86/smm.h>
 #include <cpu/intel/turbo.h>
 #include <device/device.h>
 #include <device/pci.h>

src/soc/intel/denverton_ns/include/soc/smm.h

@@ -24,25 +24,6 @@ struct smm_relocation_attrs {
 	uint32_t smrr_mask;
 };
 
-/* Fills in the arguments for the entire SMM region covered by chipset
- * protections. e.g. TSEG. */
-void smm_region(void **start, size_t *size);
-
-enum {
-	/* SMM handler area. */
-	SMM_SUBREGION_HANDLER,
-	/* SMM cache region. */
-	SMM_SUBREGION_CACHE,
-	/* Chipset specific area. */
-	SMM_SUBREGION_CHIPSET,
-	/* Total sub regions supported. */
-	SMM_SUBREGION_NUM,
-};
-
-/* Fills in the start and size for the requested SMM subregion. Returns
- * 0 on success, < 0 on failure. */
-int smm_subregion(int sub, void **start, size_t *size);
-
 #if !defined(__PRE_RAM__) && !defined(__SMM___)
 #include <stdint.h>
 void southcluster_smm_clear_state(void);

src/soc/intel/denverton_ns/memmap.c

@@ -16,12 +16,12 @@
 
 #include <cbmem.h>
 #include <assert.h>
+#include <cpu/x86/smm.h>
 #include <device/device.h>
 #include <device/pci_def.h>
 #include <device/pci_ops.h>
 #include <soc/pci_devs.h>
 #include <soc/systemagent.h>
-#include <soc/smm.h>
 #include <lib.h>
 
 /* Returns base of requested region encoded in the system agent. */

src/soc/intel/denverton_ns/romstage.c

@@ -20,6 +20,7 @@
 #include <cf9_reset.h>
 #include <console/console.h>
 #include <cpu/x86/mtrr.h>
+#include <cpu/x86/smm.h>
 #include <device/pci_ops.h>
 #include <soc/fiamux.h>
 #include <device/mmio.h>
@@ -29,7 +30,6 @@
 #include <soc/pmc.h>
 #include <soc/romstage.h>
 #include <soc/smbus.h>
-#include <soc/smm.h>
 #include <soc/soc_util.h>
 #include <soc/hob_mem.h>
 

src/soc/intel/icelake/include/soc/smm.h

@@ -18,7 +18,7 @@
 
 #include <stdint.h>
 #include <cpu/x86/msr.h>
-#include <fsp/memmap.h>
+#include <cpu/x86/smm.h>
 #include <soc/gpio.h>
 
 struct ied_header {

src/soc/intel/skylake/include/soc/smm.h

@@ -19,7 +19,7 @@
 
 #include <stdint.h>
 #include <cpu/x86/msr.h>
-#include <fsp/memmap.h>
+#include <cpu/x86/smm.h>
 #include <intelblocks/smihandler.h>
 #include <soc/gpio.h>
 

src/soc/intel/skylake/memmap.c

@@ -18,9 +18,9 @@
 #include <device/mmio.h>
 #include <cbmem.h>
 #include <console/console.h>
+#include <cpu/x86/smm.h>
 #include <device/device.h>
 #include <device/pci.h>
-#include <fsp/memmap.h>
 #include <intelblocks/ebda.h>
 #include <intelblocks/systemagent.h>
 #include <soc/msr.h>

src/soc/intel/skylake/romstage/romstage_fsp20.c

@@ -18,11 +18,11 @@
 #include <assert.h>
 #include <cpu/x86/mtrr.h>
 #include <cpu/x86/msr.h>
+#include <cpu/x86/smm.h>
 #include <cbmem.h>
 #include <console/console.h>
 #include <device/pci_def.h>
 #include <fsp/util.h>
-#include <fsp/memmap.h>
 #include <intelblocks/pmclib.h>
 #include <memory_info.h>
 #include <smbios.h>