[PATCH] Add ACPI hook, rename raw_phys_apicid to bios_cpu_apicid

Patch from James Cleverdon & John Stultz

This adds machine a type detection hook to the acpi code, and renames
raw_phys_apicid to bios_cpu_apicid (it's an array of apicid's to boot,
indexed by the bios' cpu numbering), and I other large machines will
need to use it later ... not necessarily using physical interrupts.

arch/i386/kernel/acpi.c

@@ -44,6 +44,8 @@
 #include <asm/io_apic.h>
 #include <asm/tlbflush.h>
 
+#include <mach_apic.h>
+#include <mach_mpparse.h>
 
 #define PREFIX			"ACPI: "
 
@@ -126,6 +128,8 @@ acpi_parse_madt (
 	printk(KERN_INFO PREFIX "Local APIC address 0x%08x\n",
 		madt->lapic_address);
 
+	acpi_madt_oem_check(madt->header.oem_id, madt->header.oem_table_id);
+	
 	return 0;
 }
 
@@ -430,8 +434,10 @@ acpi_boot_init (
 #endif /*CONFIG_X86_IO_APIC*/
 
 #ifdef CONFIG_X86_LOCAL_APIC
-	if (acpi_lapic && acpi_ioapic)
+	if (acpi_lapic && acpi_ioapic) {
 		smp_found_config = 1;
+		clustered_apic_check();
+	}
 #endif
 
 	return 0;

arch/i386/kernel/mpparse.c

@@ -72,8 +72,8 @@ static unsigned int __initdata num_processors;
 /* Bitmask of physically existing CPUs */
 unsigned long phys_cpu_present_map;
 
-int summit_x86 = 0;
-u8 raw_phys_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = BAD_APICID };
+int x86_summit = 0;
+u8 bios_cpu_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = BAD_APICID };
 
 /*
  * Intel MP BIOS table parsing routines:
@@ -186,7 +186,7 @@ void __init MP_processor_info (struct mpc_config_processor *m)
 		ver = 0x10;
 	}
 	apic_version[m->mpc_apicid] = ver;
-	raw_phys_apicid[num_processors - 1] = m->mpc_apicid;
+	bios_cpu_apicid[num_processors - 1] = m->mpc_apicid;
 }
 
 static void __init MP_bus_info (struct mpc_config_bus *m)

include/asm-i386/mach-bigsmp/mach_apic.h

@@ -67,11 +67,11 @@ static inline int apicid_to_node(int logical_apicid)
 	return 0;
 }
 
-extern u8 raw_phys_apicid[];
+extern u8 bios_cpu_apicid[];
 
 static inline int cpu_present_to_apicid(int mps_cpu)
 {
-	return (int) raw_phys_apicid[mps_cpu];
+	return (int) bios_cpu_apicid[mps_cpu];
 }
 
 static inline unsigned long apicid_to_cpu_present(int phys_apicid)

include/asm-i386/mach-default/mach_mpparse.h

@@ -17,4 +17,10 @@ static inline void mps_oem_check(struct mp_config_table *mpc, char *oem,
 {
 }
 
+/* Hook from generic ACPI tables.c */
+static inline void acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+{
+}
+
+
 #endif /* __ASM_MACH_MPPARSE_H */

include/asm-i386/mach-numaq/mach_mpparse.h

@@ -34,4 +34,9 @@ static inline void mps_oem_check(struct mp_config_table *mpc, char *oem,
 				mpc->mpc_oemsize);
 }
 
+/* Hook from generic ACPI tables.c */
+static inline void acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+{
+}
+
 #endif /* __ASM_MACH_MPPARSE_H */

include/asm-i386/mach-summit/mach_apic.h

@@ -45,7 +45,7 @@ static inline int apicid_to_node(int logical_apicid)
 static inline int cpu_present_to_apicid(int mps_cpu)
 {
 	if (x86_summit)
-		return (int) raw_phys_apicid[mps_cpu];
+		return (int) bios_cpu_apicid[mps_cpu];
 	else
 		return mps_cpu;
 }

include/asm-i386/mach-summit/mach_mpparse.h

@@ -19,4 +19,10 @@ static inline void mps_oem_check(struct mp_config_table *mpc, char *oem,
 		x86_summit = 1;
 }
 
+/* Hook from generic ACPI tables.c */
+static inline void acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+{
+	if (!strncmp(oem_id, "IBM", 3) && !strncmp(oem_table_id, "SERVIGIL", 8))
+		x86_summit = 1;
+}
 #endif /* __ASM_MACH_MPPARSE_H */