acpi: Remove explicit pointer tracking in per-device ssdt.

It's useless and error-prone.

Change-Id: Ie385e147d42b05290ab8c3ca193c5c871306f4ac
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/7018
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>

src/arch/x86/boot/acpi.c

@@ -281,8 +281,9 @@ void acpi_create_ssdt_generator(acpi_header_t *ssdt, const char *oem_table_id)
 		device_t dev;
 		for (dev = all_devices; dev; dev = dev->next)
 			if (dev->ops && dev->ops->acpi_fill_ssdt_generator) {
-				current = dev->ops->acpi_fill_ssdt_generator(current, oem_table_id);
+				dev->ops->acpi_fill_ssdt_generator();
 			}
+		current = (unsigned long) acpigen_get_current();
 #else
 		current = acpi_fill_ssdt_generator(current, oem_table_id);
 #endif

src/include/device/device.h

@@ -59,8 +59,7 @@ struct device_operations {
 #endif
 #if IS_ENABLED(CONFIG_GENERATE_ACPI_TABLES) && IS_ENABLED(CONFIG_PER_DEVICE_ACPI_TABLES)
 	unsigned long (*write_acpi_tables)(unsigned long start,  struct acpi_rsdp *rsdp);
-	unsigned long (*acpi_fill_ssdt_generator)(unsigned long current,
-						  const char *oem_table_id);
+	void (*acpi_fill_ssdt_generator)(void);
 	void (*acpi_inject_dsdt_generator)(void);
 #endif
 	const struct pci_operations *ops_pci;

src/mainboard/lenovo/x201/mainboard.c

@@ -112,11 +112,9 @@ static void mainboard_init(device_t dev)
 			   0x42, 0x142);
 }
 
-static unsigned long fill_ssdt(unsigned long current,
-			       const char *oem_table_id)
+static void fill_ssdt(void)
 {
 	drivers_lenovo_serial_ports_ssdt_generate("\\_SB.PCI0.LPCB", 0);
-	return (unsigned long) (acpigen_get_current());
 }
 
 static void mainboard_enable(device_t dev)

src/northbridge/intel/haswell/acpi.c

@@ -194,10 +194,3 @@ int init_igd_opregion(igd_opregion_t *opregion)
 
 	return 0;
 }
-
-unsigned long northbridge_acpi_fill_ssdt_generator(unsigned long current,
-						   const char *oem_table_id)
-{
-	generate_cpu_entries();
-	return (unsigned long) (acpigen_get_current());
-}

src/northbridge/intel/haswell/haswell.h

@@ -229,8 +229,6 @@ struct mrc_data_container *find_current_mrc_cache(void);
 #if !defined(__PRE_RAM__)
 #include "gma.h"
 int init_igd_opregion(igd_opregion_t *igd_opregion);
-unsigned long northbridge_acpi_fill_ssdt_generator(unsigned long current,
-						   const char *oem_table_id);
 #endif
 
 #endif

src/northbridge/intel/haswell/northbridge.c

@@ -463,7 +463,7 @@ static struct device_operations mc_ops = {
 	.enable_resources = pci_dev_enable_resources,
 	.init             = northbridge_init,
 	.enable           = northbridge_enable,
-	.acpi_fill_ssdt_generator = northbridge_acpi_fill_ssdt_generator,
+	.acpi_fill_ssdt_generator = generate_cpu_entries,
 	.scan_bus         = 0,
 	.ops_pci          = &intel_pci_ops,
 };

src/northbridge/intel/nehalem/acpi.c

@@ -211,11 +211,3 @@ void *igd_make_opregion(void)
 		init_igd_opregion(opregion);
 	return opregion;
 }
-
-unsigned long northbridge_acpi_fill_ssdt_generator(unsigned long current,
-						   const char *oem_table_id)
-{
-	generate_cpu_entries();
-	return (unsigned long) (acpigen_get_current());
-}
-

src/northbridge/intel/nehalem/nehalem.h

@@ -619,8 +619,6 @@ struct mrc_data_container *find_current_mrc_cache(void);
 #if !defined(__PRE_RAM__)
 #include "gma.h"
 int init_igd_opregion(igd_opregion_t *igd_opregion);
-unsigned long northbridge_acpi_fill_ssdt_generator(unsigned long current,
-						   const char *oem_table_id);
 #endif
 
 #endif

src/northbridge/intel/nehalem/northbridge.c

@@ -313,7 +313,7 @@ static struct device_operations mc_ops = {
 	.enable_resources = pci_dev_enable_resources,
 	.init = northbridge_init,
 	.enable = northbridge_enable,
-	.acpi_fill_ssdt_generator = northbridge_acpi_fill_ssdt_generator,
+	.acpi_fill_ssdt_generator = generate_cpu_entries,
 	.scan_bus = 0,
 	.ops_pci = &intel_pci_ops,
 };

src/northbridge/intel/sandybridge/acpi.c

@@ -214,10 +214,3 @@ void *igd_make_opregion(void)
 	return opregion;
 }
 
-unsigned long northbridge_acpi_fill_ssdt_generator(unsigned long current,
-						   const char *oem_table_id)
-{
-	generate_cpu_entries();
-	return (unsigned long) (acpigen_get_current());
-}
-

src/northbridge/intel/sandybridge/northbridge.c

@@ -444,8 +444,7 @@ static struct device_operations mc_ops = {
 	.enable           = northbridge_enable,
 	.scan_bus         = 0,
 	.ops_pci          = &intel_pci_ops,
-	.acpi_fill_ssdt_generator = northbridge_acpi_fill_ssdt_generator,
-
+	.acpi_fill_ssdt_generator = generate_cpu_entries,
 };
 
 static const struct pci_driver mc_driver_0100 __pci_driver = {

src/northbridge/intel/sandybridge/sandybridge.h

@@ -235,8 +235,6 @@ struct mrc_data_container *find_current_mrc_cache(void);
 #if !defined(__PRE_RAM__)
 #include "gma.h"
 int init_igd_opregion(igd_opregion_t *igd_opregion);
-unsigned long northbridge_acpi_fill_ssdt_generator(unsigned long current,
-						   const char *oem_table_id);
 #endif
 
 #endif