x86_64: prepare shared kernel/mpparse.c

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 852 deletions

diff --git a/arch/x86_64/kernel/mpparse.c b/arch/x86_64/kernel/mpparse.c
deleted file mode 100644
index 8bf0ca03ac8e..000000000000
--- a/arch/x86_64/kernel/mpparse.c
+++ /dev/null
@@ -1,852 +0,0 @@
-/*
- *	Intel Multiprocessor Specification 1.1 and 1.4
- *	compliant MP-table parsing routines.
- *
- *	(c) 1995 Alan Cox, Building #3 <alan@redhat.com>
- *	(c) 1998, 1999, 2000 Ingo Molnar <mingo@redhat.com>
- *
- *	Fixes
- *		Erich Boleyn	:	MP v1.4 and additional changes.
- *		Alan Cox	:	Added EBDA scanning
- *		Ingo Molnar	:	various cleanups and rewrites
- *		Maciej W. Rozycki:	Bits for default MP configurations
- *		Paul Diefenbaugh:	Added full ACPI support
- */
-
-#include <linux/mm.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/bootmem.h>
-#include <linux/kernel_stat.h>
-#include <linux/mc146818rtc.h>
-#include <linux/acpi.h>
-#include <linux/module.h>
-
-#include <asm/smp.h>
-#include <asm/mtrr.h>
-#include <asm/mpspec.h>
-#include <asm/pgalloc.h>
-#include <asm/io_apic.h>
-#include <asm/proto.h>
-#include <asm/acpi.h>
-
-/* Have we found an MP table */
-int smp_found_config;
-
-/*
- * Various Linux-internal data structures created from the
- * MP-table.
- */
-DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES);
-int mp_bus_id_to_pci_bus [MAX_MP_BUSSES] = { [0 ... MAX_MP_BUSSES-1] = -1 };
-
-static int mp_current_pci_id = 0;
-/* I/O APIC entries */
-struct mpc_config_ioapic mp_ioapics[MAX_IO_APICS];
-
-/* # of MP IRQ source entries */
-struct mpc_config_intsrc mp_irqs[MAX_IRQ_SOURCES];
-
-/* MP IRQ source entries */
-int mp_irq_entries;
-
-int nr_ioapics;
-unsigned long mp_lapic_addr = 0;
-
-
-
-/* Processor that is doing the boot up */
-unsigned int boot_cpu_id = -1U;
-/* Internal processor count */
-unsigned int num_processors __cpuinitdata = 0;
-
-unsigned disabled_cpus __cpuinitdata;
-
-/* Bitmask of physically existing CPUs */
-physid_mask_t phys_cpu_present_map = PHYSID_MASK_NONE;
-
-u8 bios_cpu_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = BAD_APICID };
-
-
-/*
- * Intel MP BIOS table parsing routines:
- */
-
-/*
- * Checksum an MP configuration block.
- */
-
-static int __init mpf_checksum(unsigned char *mp, int len)
-{
-	int sum = 0;
-
-	while (len--)
-		sum += *mp++;
-
-	return sum & 0xFF;
-}
-
-static void __cpuinit MP_processor_info (struct mpc_config_processor *m)
-{
-	int cpu;
-	cpumask_t tmp_map;
-	char *bootup_cpu = "";
-
-	if (!(m->mpc_cpuflag & CPU_ENABLED)) {
-		disabled_cpus++;
-		return;
-	}
-	if (m->mpc_cpuflag & CPU_BOOTPROCESSOR) {
-		bootup_cpu = " (Bootup-CPU)";
-		boot_cpu_id = m->mpc_apicid;
-	}
-
-	printk(KERN_INFO "Processor #%d%s\n", m->mpc_apicid, bootup_cpu);
-
-	if (num_processors >= NR_CPUS) {
-		printk(KERN_WARNING "WARNING: NR_CPUS limit of %i reached."
-			" Processor ignored.\n", NR_CPUS);
-		return;
-	}
-
-	num_processors++;
-	cpus_complement(tmp_map, cpu_present_map);
-	cpu = first_cpu(tmp_map);
-
-	physid_set(m->mpc_apicid, phys_cpu_present_map);
- 	if (m->mpc_cpuflag & CPU_BOOTPROCESSOR) {
- 		/*
- 		 * bios_cpu_apicid is required to have processors listed
- 		 * in same order as logical cpu numbers. Hence the first
- 		 * entry is BSP, and so on.
- 		 */
-		cpu = 0;
- 	}
-	bios_cpu_apicid[cpu] = m->mpc_apicid;
-	x86_cpu_to_apicid[cpu] = m->mpc_apicid;
-
-	cpu_set(cpu, cpu_possible_map);
-	cpu_set(cpu, cpu_present_map);
-}
-
-static void __init MP_bus_info (struct mpc_config_bus *m)
-{
-	char str[7];
-
-	memcpy(str, m->mpc_bustype, 6);
-	str[6] = 0;
-	Dprintk("Bus #%d is %s\n", m->mpc_busid, str);
-
-	if (strncmp(str, "ISA", 3) == 0) {
-		set_bit(m->mpc_busid, mp_bus_not_pci);
-	} else if (strncmp(str, "PCI", 3) == 0) {
-		clear_bit(m->mpc_busid, mp_bus_not_pci);
-		mp_bus_id_to_pci_bus[m->mpc_busid] = mp_current_pci_id;
-		mp_current_pci_id++;
-	} else {
-		printk(KERN_ERR "Unknown bustype %s\n", str);
-	}
-}
-
-static int bad_ioapic(unsigned long address)
-{
-	if (nr_ioapics >= MAX_IO_APICS) {
-		printk(KERN_ERR "ERROR: Max # of I/O APICs (%d) exceeded "
-			"(found %d)\n", MAX_IO_APICS, nr_ioapics);
-		panic("Recompile kernel with bigger MAX_IO_APICS!\n");
-	}
-	if (!address) {
-		printk(KERN_ERR "WARNING: Bogus (zero) I/O APIC address"
-			" found in table, skipping!\n");
-		return 1;
-	}
-	return 0;
-}
-
-static void __init MP_ioapic_info (struct mpc_config_ioapic *m)
-{
-	if (!(m->mpc_flags & MPC_APIC_USABLE))
-		return;
-
-	printk("I/O APIC #%d at 0x%X.\n",
-		m->mpc_apicid, m->mpc_apicaddr);
-
-	if (bad_ioapic(m->mpc_apicaddr))
-		return;
-
-	mp_ioapics[nr_ioapics] = *m;
-	nr_ioapics++;
-}
-
-static void __init MP_intsrc_info (struct mpc_config_intsrc *m)
-{
-	mp_irqs [mp_irq_entries] = *m;
-	Dprintk("Int: type %d, pol %d, trig %d, bus %d,"
-		" IRQ %02x, APIC ID %x, APIC INT %02x\n",
-			m->mpc_irqtype, m->mpc_irqflag & 3,
-			(m->mpc_irqflag >> 2) & 3, m->mpc_srcbus,
-			m->mpc_srcbusirq, m->mpc_dstapic, m->mpc_dstirq);
-	if (++mp_irq_entries >= MAX_IRQ_SOURCES)
-		panic("Max # of irq sources exceeded!!\n");
-}
-
-static void __init MP_lintsrc_info (struct mpc_config_lintsrc *m)
-{
-	Dprintk("Lint: type %d, pol %d, trig %d, bus %d,"
-		" IRQ %02x, APIC ID %x, APIC LINT %02x\n",
-			m->mpc_irqtype, m->mpc_irqflag & 3,
-			(m->mpc_irqflag >> 2) &3, m->mpc_srcbusid,
-			m->mpc_srcbusirq, m->mpc_destapic, m->mpc_destapiclint);
-}
-
-/*
- * Read/parse the MPC
- */
-
-static int __init smp_read_mpc(struct mp_config_table *mpc)
-{
-	char str[16];
-	int count=sizeof(*mpc);
-	unsigned char *mpt=((unsigned char *)mpc)+count;
-
-	if (memcmp(mpc->mpc_signature,MPC_SIGNATURE,4)) {
-		printk("MPTABLE: bad signature [%c%c%c%c]!\n",
-			mpc->mpc_signature[0],
-			mpc->mpc_signature[1],
-			mpc->mpc_signature[2],
-			mpc->mpc_signature[3]);
-		return 0;
-	}
-	if (mpf_checksum((unsigned char *)mpc,mpc->mpc_length)) {
-		printk("MPTABLE: checksum error!\n");
-		return 0;
-	}
-	if (mpc->mpc_spec!=0x01 && mpc->mpc_spec!=0x04) {
-		printk(KERN_ERR "MPTABLE: bad table version (%d)!!\n",
-			mpc->mpc_spec);
-		return 0;
-	}
-	if (!mpc->mpc_lapic) {
-		printk(KERN_ERR "MPTABLE: null local APIC address!\n");
-		return 0;
-	}
-	memcpy(str,mpc->mpc_oem,8);
-	str[8] = 0;
-	printk(KERN_INFO "MPTABLE: OEM ID: %s ",str);
-
-	memcpy(str,mpc->mpc_productid,12);
-	str[12] = 0;
-	printk("MPTABLE: Product ID: %s ",str);
-
-	printk("MPTABLE: APIC at: 0x%X\n",mpc->mpc_lapic);
-
-	/* save the local APIC address, it might be non-default */
-	if (!acpi_lapic)
-		mp_lapic_addr = mpc->mpc_lapic;
-
-	/*
-	 *	Now process the configuration blocks.
-	 */
-	while (count < mpc->mpc_length) {
-		switch(*mpt) {
-			case MP_PROCESSOR:
-			{
-				struct mpc_config_processor *m=
-					(struct mpc_config_processor *)mpt;
-				if (!acpi_lapic)
-					MP_processor_info(m);
-				mpt += sizeof(*m);
-				count += sizeof(*m);
-				break;
-			}
-			case MP_BUS:
-			{
-				struct mpc_config_bus *m=
-					(struct mpc_config_bus *)mpt;
-				MP_bus_info(m);
-				mpt += sizeof(*m);
-				count += sizeof(*m);
-				break;
-			}
-			case MP_IOAPIC:
-			{
-				struct mpc_config_ioapic *m=
-					(struct mpc_config_ioapic *)mpt;
-				MP_ioapic_info(m);
-				mpt += sizeof(*m);
-				count += sizeof(*m);
-				break;
-			}
-			case MP_INTSRC:
-			{
-				struct mpc_config_intsrc *m=
-					(struct mpc_config_intsrc *)mpt;
-
-				MP_intsrc_info(m);
-				mpt += sizeof(*m);
-				count += sizeof(*m);
-				break;
-			}
-			case MP_LINTSRC:
-			{
-				struct mpc_config_lintsrc *m=
-					(struct mpc_config_lintsrc *)mpt;
-				MP_lintsrc_info(m);
-				mpt += sizeof(*m);
-				count += sizeof(*m);
-				break;
-			}
-		}
-	}
-	setup_apic_routing();
-	if (!num_processors)
-		printk(KERN_ERR "MPTABLE: no processors registered!\n");
-	return num_processors;
-}
-
-static int __init ELCR_trigger(unsigned int irq)
-{
-	unsigned int port;
-
-	port = 0x4d0 + (irq >> 3);
-	return (inb(port) >> (irq & 7)) & 1;
-}
-
-static void __init construct_default_ioirq_mptable(int mpc_default_type)
-{
-	struct mpc_config_intsrc intsrc;
-	int i;
-	int ELCR_fallback = 0;
-
-	intsrc.mpc_type = MP_INTSRC;
-	intsrc.mpc_irqflag = 0;			/* conforming */
-	intsrc.mpc_srcbus = 0;
-	intsrc.mpc_dstapic = mp_ioapics[0].mpc_apicid;
-
-	intsrc.mpc_irqtype = mp_INT;
-
-	/*
-	 *  If true, we have an ISA/PCI system with no IRQ entries
-	 *  in the MP table. To prevent the PCI interrupts from being set up
-	 *  incorrectly, we try to use the ELCR. The sanity check to see if
-	 *  there is good ELCR data is very simple - IRQ0, 1, 2 and 13 can
-	 *  never be level sensitive, so we simply see if the ELCR agrees.
-	 *  If it does, we assume it's valid.
-	 */
-	if (mpc_default_type == 5) {
-		printk(KERN_INFO "ISA/PCI bus type with no IRQ information... falling back to ELCR\n");
-
-		if (ELCR_trigger(0) || ELCR_trigger(1) || ELCR_trigger(2) || ELCR_trigger(13))
-			printk(KERN_ERR "ELCR contains invalid data... not using ELCR\n");
-		else {
-			printk(KERN_INFO "Using ELCR to identify PCI interrupts\n");
-			ELCR_fallback = 1;
-		}
-	}
-
-	for (i = 0; i < 16; i++) {
-		switch (mpc_default_type) {
-		case 2:
-			if (i == 0 || i == 13)
-				continue;	/* IRQ0 & IRQ13 not connected */
-			/* fall through */
-		default:
-			if (i == 2)
-				continue;	/* IRQ2 is never connected */
-		}
-
-		if (ELCR_fallback) {
-			/*
-			 *  If the ELCR indicates a level-sensitive interrupt, we
-			 *  copy that information over to the MP table in the
-			 *  irqflag field (level sensitive, active high polarity).
-			 */
-			if (ELCR_trigger(i))
-				intsrc.mpc_irqflag = 13;
-			else
-				intsrc.mpc_irqflag = 0;
-		}
-
-		intsrc.mpc_srcbusirq = i;
-		intsrc.mpc_dstirq = i ? i : 2;		/* IRQ0 to INTIN2 */
-		MP_intsrc_info(&intsrc);
-	}
-
-	intsrc.mpc_irqtype = mp_ExtINT;
-	intsrc.mpc_srcbusirq = 0;
-	intsrc.mpc_dstirq = 0;				/* 8259A to INTIN0 */
-	MP_intsrc_info(&intsrc);
-}
-
-static inline void __init construct_default_ISA_mptable(int mpc_default_type)
-{
-	struct mpc_config_processor processor;
-	struct mpc_config_bus bus;
-	struct mpc_config_ioapic ioapic;
-	struct mpc_config_lintsrc lintsrc;
-	int linttypes[2] = { mp_ExtINT, mp_NMI };
-	int i;
-
-	/*
-	 * local APIC has default address
-	 */
-	mp_lapic_addr = APIC_DEFAULT_PHYS_BASE;
-
-	/*
-	 * 2 CPUs, numbered 0 & 1.
-	 */
-	processor.mpc_type = MP_PROCESSOR;
-	processor.mpc_apicver = 0;
-	processor.mpc_cpuflag = CPU_ENABLED;
-	processor.mpc_cpufeature = 0;
-	processor.mpc_featureflag = 0;
-	processor.mpc_reserved[0] = 0;
-	processor.mpc_reserved[1] = 0;
-	for (i = 0; i < 2; i++) {
-		processor.mpc_apicid = i;
-		MP_processor_info(&processor);
-	}
-
-	bus.mpc_type = MP_BUS;
-	bus.mpc_busid = 0;
-	switch (mpc_default_type) {
-		default:
-			printk(KERN_ERR "???\nUnknown standard configuration %d\n",
-				mpc_default_type);
-			/* fall through */
-		case 1:
-		case 5:
-			memcpy(bus.mpc_bustype, "ISA   ", 6);
-			break;
-	}
-	MP_bus_info(&bus);
-	if (mpc_default_type > 4) {
-		bus.mpc_busid = 1;
-		memcpy(bus.mpc_bustype, "PCI   ", 6);
-		MP_bus_info(&bus);
-	}
-
-	ioapic.mpc_type = MP_IOAPIC;
-	ioapic.mpc_apicid = 2;
-	ioapic.mpc_apicver = 0;
-	ioapic.mpc_flags = MPC_APIC_USABLE;
-	ioapic.mpc_apicaddr = 0xFEC00000;
-	MP_ioapic_info(&ioapic);
-
-	/*
-	 * We set up most of the low 16 IO-APIC pins according to MPS rules.
-	 */
-	construct_default_ioirq_mptable(mpc_default_type);
-
-	lintsrc.mpc_type = MP_LINTSRC;
-	lintsrc.mpc_irqflag = 0;		/* conforming */
-	lintsrc.mpc_srcbusid = 0;
-	lintsrc.mpc_srcbusirq = 0;
-	lintsrc.mpc_destapic = MP_APIC_ALL;
-	for (i = 0; i < 2; i++) {
-		lintsrc.mpc_irqtype = linttypes[i];
-		lintsrc.mpc_destapiclint = i;
-		MP_lintsrc_info(&lintsrc);
-	}
-}
-
-static struct intel_mp_floating *mpf_found;
-
-/*
- * Scan the memory blocks for an SMP configuration block.
- */
-void __init get_smp_config (void)
-{
-	struct intel_mp_floating *mpf = mpf_found;
-
-	/*
- 	 * ACPI supports both logical (e.g. Hyper-Threading) and physical 
- 	 * processors, where MPS only supports physical.
- 	 */
- 	if (acpi_lapic && acpi_ioapic) {
- 		printk(KERN_INFO "Using ACPI (MADT) for SMP configuration information\n");
- 		return;
-	}
- 	else if (acpi_lapic)
- 		printk(KERN_INFO "Using ACPI for processor (LAPIC) configuration information\n");
-
-	printk("Intel MultiProcessor Specification v1.%d\n", mpf->mpf_specification);
-
-	/*
-	 * Now see if we need to read further.
-	 */
-	if (mpf->mpf_feature1 != 0) {
-
-		printk(KERN_INFO "Default MP configuration #%d\n", mpf->mpf_feature1);
-		construct_default_ISA_mptable(mpf->mpf_feature1);
-
-	} else if (mpf->mpf_physptr) {
-
-		/*
-		 * Read the physical hardware table.  Anything here will
-		 * override the defaults.
-		 */
-		if (!smp_read_mpc(phys_to_virt(mpf->mpf_physptr))) {
-			smp_found_config = 0;
-			printk(KERN_ERR "BIOS bug, MP table errors detected!...\n");
-			printk(KERN_ERR "... disabling SMP support. (tell your hw vendor)\n");
-			return;
-		}
-		/*
-		 * If there are no explicit MP IRQ entries, then we are
-		 * broken.  We set up most of the low 16 IO-APIC pins to
-		 * ISA defaults and hope it will work.
-		 */
-		if (!mp_irq_entries) {
-			struct mpc_config_bus bus;
-
-			printk(KERN_ERR "BIOS bug, no explicit IRQ entries, using default mptable. (tell your hw vendor)\n");
-
-			bus.mpc_type = MP_BUS;
-			bus.mpc_busid = 0;
-			memcpy(bus.mpc_bustype, "ISA   ", 6);
-			MP_bus_info(&bus);
-
-			construct_default_ioirq_mptable(0);
-		}
-
-	} else
-		BUG();
-
-	printk(KERN_INFO "Processors: %d\n", num_processors);
-	/*
-	 * Only use the first configuration found.
-	 */
-}
-
-static int __init smp_scan_config (unsigned long base, unsigned long length)
-{
-	extern void __bad_mpf_size(void); 
-	unsigned int *bp = phys_to_virt(base);
-	struct intel_mp_floating *mpf;
-
-	Dprintk("Scan SMP from %p for %ld bytes.\n", bp,length);
-	if (sizeof(*mpf) != 16)
-		__bad_mpf_size();
-
-	while (length > 0) {
-		mpf = (struct intel_mp_floating *)bp;
-		if ((*bp == SMP_MAGIC_IDENT) &&
-			(mpf->mpf_length == 1) &&
-			!mpf_checksum((unsigned char *)bp, 16) &&
-			((mpf->mpf_specification == 1)
-				|| (mpf->mpf_specification == 4)) ) {
-
-			smp_found_config = 1;
-			reserve_bootmem_generic(virt_to_phys(mpf), PAGE_SIZE);
-			if (mpf->mpf_physptr)
-				reserve_bootmem_generic(mpf->mpf_physptr, PAGE_SIZE);
-			mpf_found = mpf;
-			return 1;
-		}
-		bp += 4;
-		length -= 16;
-	}
-	return 0;
-}
-
-void __init find_smp_config(void)
-{
-	unsigned int address;
-
-	/*
-	 * FIXME: Linux assumes you have 640K of base ram..
-	 * this continues the error...
-	 *
-	 * 1) Scan the bottom 1K for a signature
-	 * 2) Scan the top 1K of base RAM
-	 * 3) Scan the 64K of bios
-	 */
-	if (smp_scan_config(0x0,0x400) ||
-		smp_scan_config(639*0x400,0x400) ||
-			smp_scan_config(0xF0000,0x10000))
-		return;
-	/*
-	 * If it is an SMP machine we should know now.
-	 *
-	 * there is a real-mode segmented pointer pointing to the
-	 * 4K EBDA area at 0x40E, calculate and scan it here.
-	 *
-	 * NOTE! There are Linux loaders that will corrupt the EBDA
-	 * area, and as such this kind of SMP config may be less
-	 * trustworthy, simply because the SMP table may have been
-	 * stomped on during early boot. These loaders are buggy and
-	 * should be fixed.
-	 */
-
-	address = *(unsigned short *)phys_to_virt(0x40E);
-	address <<= 4;
-	if (smp_scan_config(address, 0x1000))
-		return;
-
-	/* If we have come this far, we did not find an MP table  */
-	 printk(KERN_INFO "No mptable found.\n");
-}
-
-/* --------------------------------------------------------------------------
-                            ACPI-based MP Configuration
-   -------------------------------------------------------------------------- */
-
-#ifdef CONFIG_ACPI
-
-void __init mp_register_lapic_address(u64 address)
-{
-	mp_lapic_addr = (unsigned long) address;
-	set_fixmap_nocache(FIX_APIC_BASE, mp_lapic_addr);
-	if (boot_cpu_id == -1U)
-		boot_cpu_id = GET_APIC_ID(apic_read(APIC_ID));
-}
-
-void __cpuinit mp_register_lapic (u8 id, u8 enabled)
-{
-	struct mpc_config_processor processor;
-	int			boot_cpu = 0;
-	
-	if (id == boot_cpu_id)
-		boot_cpu = 1;
-
-	processor.mpc_type = MP_PROCESSOR;
-	processor.mpc_apicid = id;
-	processor.mpc_apicver = 0;
-	processor.mpc_cpuflag = (enabled ? CPU_ENABLED : 0);
-	processor.mpc_cpuflag |= (boot_cpu ? CPU_BOOTPROCESSOR : 0);
-	processor.mpc_cpufeature = 0;
-	processor.mpc_featureflag = 0;
-	processor.mpc_reserved[0] = 0;
-	processor.mpc_reserved[1] = 0;
-
-	MP_processor_info(&processor);
-}
-
-#define MP_ISA_BUS		0
-#define MP_MAX_IOAPIC_PIN	127
-
-static struct mp_ioapic_routing {
-	int			apic_id;
-	int			gsi_start;
-	int			gsi_end;
-	u32			pin_programmed[4];
-} mp_ioapic_routing[MAX_IO_APICS];
-
-static int mp_find_ioapic(int gsi)
-{
-	int i = 0;
-
-	/* Find the IOAPIC that manages this GSI. */
-	for (i = 0; i < nr_ioapics; i++) {
-		if ((gsi >= mp_ioapic_routing[i].gsi_start)
-			&& (gsi <= mp_ioapic_routing[i].gsi_end))
-			return i;
-	}
-
-	printk(KERN_ERR "ERROR: Unable to locate IOAPIC for GSI %d\n", gsi);
-	return -1;
-}
-
-static u8 uniq_ioapic_id(u8 id)
-{
-	int i;
-	DECLARE_BITMAP(used, 256);
-	bitmap_zero(used, 256);
-	for (i = 0; i < nr_ioapics; i++) {
-		struct mpc_config_ioapic *ia = &mp_ioapics[i];
-		__set_bit(ia->mpc_apicid, used);
-	}
-	if (!test_bit(id, used))
-		return id;
-	return find_first_zero_bit(used, 256);
-}
-
-void __init mp_register_ioapic(u8 id, u32 address, u32 gsi_base)
-{
-	int idx = 0;
-
-	if (bad_ioapic(address))
-		return;
-
-	idx = nr_ioapics;
-
-	mp_ioapics[idx].mpc_type = MP_IOAPIC;
-	mp_ioapics[idx].mpc_flags = MPC_APIC_USABLE;
-	mp_ioapics[idx].mpc_apicaddr = address;
-
-	set_fixmap_nocache(FIX_IO_APIC_BASE_0 + idx, address);
-	mp_ioapics[idx].mpc_apicid = uniq_ioapic_id(id);
-	mp_ioapics[idx].mpc_apicver = 0;
-	
-	/* 
-	 * Build basic IRQ lookup table to facilitate gsi->io_apic lookups
-	 * and to prevent reprogramming of IOAPIC pins (PCI IRQs).
-	 */
-	mp_ioapic_routing[idx].apic_id = mp_ioapics[idx].mpc_apicid;
-	mp_ioapic_routing[idx].gsi_start = gsi_base;
-	mp_ioapic_routing[idx].gsi_end = gsi_base + 
-		io_apic_get_redir_entries(idx);
-
-	printk(KERN_INFO "IOAPIC[%d]: apic_id %d, address 0x%x, "
-		"GSI %d-%d\n", idx, mp_ioapics[idx].mpc_apicid, 
-		mp_ioapics[idx].mpc_apicaddr,
-		mp_ioapic_routing[idx].gsi_start,
-		mp_ioapic_routing[idx].gsi_end);
-
-	nr_ioapics++;
-}
-
-void __init
-mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, u32	gsi)
-{
-	struct mpc_config_intsrc intsrc;
-	int			ioapic = -1;
-	int			pin = -1;
-
-	/* 
-	 * Convert 'gsi' to 'ioapic.pin'.
-	 */
-	ioapic = mp_find_ioapic(gsi);
-	if (ioapic < 0)
-		return;
-	pin = gsi - mp_ioapic_routing[ioapic].gsi_start;
-
-	/*
-	 * TBD: This check is for faulty timer entries, where the override
-	 *      erroneously sets the trigger to level, resulting in a HUGE 
-	 *      increase of timer interrupts!
-	 */
-	if ((bus_irq == 0) && (trigger == 3))
-		trigger = 1;
-
-	intsrc.mpc_type = MP_INTSRC;
-	intsrc.mpc_irqtype = mp_INT;
-	intsrc.mpc_irqflag = (trigger << 2) | polarity;
-	intsrc.mpc_srcbus = MP_ISA_BUS;
-	intsrc.mpc_srcbusirq = bus_irq;				       /* IRQ */
-	intsrc.mpc_dstapic = mp_ioapics[ioapic].mpc_apicid;	   /* APIC ID */
-	intsrc.mpc_dstirq = pin;				    /* INTIN# */
-
-	Dprintk("Int: type %d, pol %d, trig %d, bus %d, irq %d, %d-%d\n", 
-		intsrc.mpc_irqtype, intsrc.mpc_irqflag & 3, 
-		(intsrc.mpc_irqflag >> 2) & 3, intsrc.mpc_srcbus, 
-		intsrc.mpc_srcbusirq, intsrc.mpc_dstapic, intsrc.mpc_dstirq);
-
-	mp_irqs[mp_irq_entries] = intsrc;
-	if (++mp_irq_entries == MAX_IRQ_SOURCES)
-		panic("Max # of irq sources exceeded!\n");
-}
-
-void __init mp_config_acpi_legacy_irqs(void)
-{
-	struct mpc_config_intsrc intsrc;
-	int i = 0;
-	int ioapic = -1;
-
-	/* 
-	 * Fabricate the legacy ISA bus (bus #31).
-	 */
-	set_bit(MP_ISA_BUS, mp_bus_not_pci);
-
-	/* 
-	 * Locate the IOAPIC that manages the ISA IRQs (0-15). 
-	 */
-	ioapic = mp_find_ioapic(0);
-	if (ioapic < 0)
-		return;
-
-	intsrc.mpc_type = MP_INTSRC;
-	intsrc.mpc_irqflag = 0;					/* Conforming */
-	intsrc.mpc_srcbus = MP_ISA_BUS;
-	intsrc.mpc_dstapic = mp_ioapics[ioapic].mpc_apicid;
-
-	/* 
-	 * Use the default configuration for the IRQs 0-15.  Unless
-	 * overridden by (MADT) interrupt source override entries.
-	 */
-	for (i = 0; i < 16; i++) {
-		int idx;
-
-		for (idx = 0; idx < mp_irq_entries; idx++) {
-			struct mpc_config_intsrc *irq = mp_irqs + idx;
-
-			/* Do we already have a mapping for this ISA IRQ? */
-			if (irq->mpc_srcbus == MP_ISA_BUS && irq->mpc_srcbusirq == i)
-				break;
-
-			/* Do we already have a mapping for this IOAPIC pin */
-			if ((irq->mpc_dstapic == intsrc.mpc_dstapic) &&
-				(irq->mpc_dstirq == i))
-				break;
-		}
-
-		if (idx != mp_irq_entries) {
-			printk(KERN_DEBUG "ACPI: IRQ%d used by override.\n", i);
-			continue;			/* IRQ already used */
-		}
-
-		intsrc.mpc_irqtype = mp_INT;
-		intsrc.mpc_srcbusirq = i;		   /* Identity mapped */
-		intsrc.mpc_dstirq = i;
-
-		Dprintk("Int: type %d, pol %d, trig %d, bus %d, irq %d, "
-			"%d-%d\n", intsrc.mpc_irqtype, intsrc.mpc_irqflag & 3, 
-			(intsrc.mpc_irqflag >> 2) & 3, intsrc.mpc_srcbus, 
-			intsrc.mpc_srcbusirq, intsrc.mpc_dstapic, 
-			intsrc.mpc_dstirq);
-
-		mp_irqs[mp_irq_entries] = intsrc;
-		if (++mp_irq_entries == MAX_IRQ_SOURCES)
-			panic("Max # of irq sources exceeded!\n");
-	}
-}
-
-int mp_register_gsi(u32 gsi, int triggering, int polarity)
-{
-	int ioapic = -1;
-	int ioapic_pin = 0;
-	int idx, bit = 0;
-
-	if (acpi_irq_model != ACPI_IRQ_MODEL_IOAPIC)
-		return gsi;
-
-	/* Don't set up the ACPI SCI because it's already set up */
-	if (acpi_gbl_FADT.sci_interrupt == gsi)
-		return gsi;
-
-	ioapic = mp_find_ioapic(gsi);
-	if (ioapic < 0) {
-		printk(KERN_WARNING "No IOAPIC for GSI %u\n", gsi);
-		return gsi;
-	}
-
-	ioapic_pin = gsi - mp_ioapic_routing[ioapic].gsi_start;
-
-	/* 
-	 * Avoid pin reprogramming.  PRTs typically include entries  
-	 * with redundant pin->gsi mappings (but unique PCI devices);
-	 * we only program the IOAPIC on the first.
-	 */
-	bit = ioapic_pin % 32;
-	idx = (ioapic_pin < 32) ? 0 : (ioapic_pin / 32);
-	if (idx > 3) {
-		printk(KERN_ERR "Invalid reference to IOAPIC pin "
-			"%d-%d\n", mp_ioapic_routing[ioapic].apic_id, 
-			ioapic_pin);
-		return gsi;
-	}
-	if ((1<<bit) & mp_ioapic_routing[ioapic].pin_programmed[idx]) {
-		Dprintk(KERN_DEBUG "Pin %d-%d already programmed\n",
-			mp_ioapic_routing[ioapic].apic_id, ioapic_pin);
-		return gsi;
-	}
-
-	mp_ioapic_routing[ioapic].pin_programmed[idx] |= (1<<bit);
-
-	io_apic_set_pci_routing(ioapic, ioapic_pin, gsi,
-		triggering == ACPI_EDGE_SENSITIVE ? 0 : 1,
-		polarity == ACPI_ACTIVE_HIGH ? 0 : 1);
-	return gsi;
-}
-#endif /*CONFIG_ACPI*/