southbridge/intel/common: Improve ACPI _PRT method generation

Add a scope parameter for `intel_write_pci0_PRT()` so that it could be
reused for multiple domains.

Change-Id: I867a0c74e633ddfe63d29870f9fd50ca883c2e78
Signed-off-by: Yuchi Chen <yuchi.chen@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/85013
Reviewed-by: Shuo Liu <shuo.liu@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>

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

@@ -397,7 +397,7 @@ bool generate_pin_irq_map(void)
 		entry = entry->next;
 	}
 
-	intel_write_pci0_PRT(pin_irq_map, map_count, &pirq_map);
+	intel_write_pci_PRT("\\_SB.PCI0", pin_irq_map, map_count, &pirq_map);
 	free(pin_irq_map);
 
 	return true;

src/southbridge/intel/common/acpi_pirq_gen.c

@@ -43,12 +43,10 @@ static void gen_pic_route(const struct slot_pin_irq_map *pin_irq_map,
 	}
 }
 
-void intel_write_pci0_PRT(const struct slot_pin_irq_map *pin_irq_map,
-			  unsigned int map_count,
-			  const struct pic_pirq_map *pirq_map)
+void intel_write_pci_PRT(const char *scope, const struct slot_pin_irq_map *pin_irq_map,
+			 unsigned int map_count, const struct pic_pirq_map *pirq_map)
 {
-	/* \_SB.PCI0._PRT */
-	acpigen_write_scope("\\_SB.PCI0");
+	acpigen_write_scope(scope);
 	acpigen_write_method("_PRT", 0);
 	acpigen_write_if();
 	acpigen_emit_namestring("PICM");

src/southbridge/intel/common/acpi_pirq_gen.h

@@ -84,9 +84,8 @@ struct pic_pirq_map {
  * slot/pin combination, and optionally providing paths to LNKx devices that can
  * provide IRQs in PIC mode.
  */
-void intel_write_pci0_PRT(const struct slot_pin_irq_map *pin_irq_map,
-			  unsigned int map_count,
-			  const struct pic_pirq_map *pirq_map);
+void intel_write_pci_PRT(const char *scope, const struct slot_pin_irq_map *pin_irq_map,
+			 unsigned int map_count, const struct pic_pirq_map *pirq_map);
 
 bool is_slot_pin_assigned(const struct slot_pin_irq_map *pin_irq_map,
 			  unsigned int map_count, unsigned int slot,

src/southbridge/intel/common/rcba_pirq.c

@@ -90,7 +90,7 @@ void intel_acpi_gen_def_acpi_pirq(const struct device *lpc)
 		map_count++;
 	}
 
-	intel_write_pci0_PRT(pin_irq_map, map_count, &pirq_map);
+	intel_write_pci_PRT("\\_SB.PCI0", pin_irq_map, map_count, &pirq_map);
 
 	free(pin_irq_map);
 }