Merge branch 'release' of master.kernel.org:/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6

38 files changed, 599 insertions, 660 deletions

diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 5d51b38bd70d..b22f003eaa6d 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -1212,7 +1212,6 @@ config PCI_DIRECT
 config PCI_MMCONFIG
 	bool
 	depends on PCI && ACPI && (PCI_GOMMCONFIG || PCI_GOANY)
-	select ACPI_BOOT
 	default y
 
 source "drivers/pci/pcie/Kconfig"
diff --git a/arch/i386/defconfig b/arch/i386/defconfig
index ca07b95c06b8..6a431b926019 100644
--- a/arch/i386/defconfig
+++ b/arch/i386/defconfig
@@ -131,8 +131,6 @@ CONFIG_SOFTWARE_SUSPEND=y
 # ACPI (Advanced Configuration and Power Interface) Support
 #
 CONFIG_ACPI=y
-CONFIG_ACPI_BOOT=y
-CONFIG_ACPI_INTERPRETER=y
 CONFIG_ACPI_SLEEP=y
 CONFIG_ACPI_SLEEP_PROC_FS=y
 CONFIG_ACPI_AC=y
@@ -144,10 +142,8 @@ CONFIG_ACPI_THERMAL=y
 # CONFIG_ACPI_ASUS is not set
 # CONFIG_ACPI_TOSHIBA is not set
 # CONFIG_ACPI_DEBUG is not set
-CONFIG_ACPI_BUS=y
 CONFIG_ACPI_EC=y
 CONFIG_ACPI_POWER=y
-CONFIG_ACPI_PCI=y
 CONFIG_ACPI_SYSTEM=y
 # CONFIG_X86_PM_TIMER is not set
 
diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile
index 64682a0edacf..f10de0f2c5e6 100644
--- a/arch/i386/kernel/Makefile
+++ b/arch/i386/kernel/Makefile
@@ -11,7 +11,7 @@ obj-y	:= process.o semaphore.o signal.o entry.o traps.o irq.o vm86.o \
 
 obj-y				+= cpu/
 obj-y				+= timers/
-obj-$(CONFIG_ACPI_BOOT)		+= acpi/
+obj-$(CONFIG_ACPI)		+= acpi/
 obj-$(CONFIG_X86_BIOS_REBOOT)	+= reboot.o
 obj-$(CONFIG_MCA)		+= mca.o
 obj-$(CONFIG_X86_MSR)		+= msr.o
diff --git a/arch/i386/kernel/acpi/Makefile b/arch/i386/kernel/acpi/Makefile
index 5e291a20c03d..267ca48e1b6c 100644
--- a/arch/i386/kernel/acpi/Makefile
+++ b/arch/i386/kernel/acpi/Makefile
@@ -1,4 +1,4 @@
-obj-$(CONFIG_ACPI_BOOT)		:= boot.o
+obj-y				:= boot.o
 obj-$(CONFIG_X86_IO_APIC)	+= earlyquirk.o
 obj-$(CONFIG_ACPI_SLEEP)	+= sleep.o wakeup.o
 
diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c
index 34ee500c26e5..a63351c085c6 100644
--- a/arch/i386/kernel/acpi/boot.c
+++ b/arch/i386/kernel/acpi/boot.c
@@ -40,19 +40,25 @@
 
 #ifdef	CONFIG_X86_64
 
-static inline void  acpi_madt_oem_check(char *oem_id, char *oem_table_id) { }
+static inline void acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+{
+}
 extern void __init clustered_apic_check(void);
-static inline int ioapic_setup_disabled(void) { return 0; }
+static inline int ioapic_setup_disabled(void)
+{
+	return 0;
+}
+
 #include <asm/proto.h>
 
-#else	/* X86 */
+#else				/* X86 */
 
 #ifdef	CONFIG_X86_LOCAL_APIC
 #include <mach_apic.h>
 #include <mach_mpparse.h>
-#endif	/* CONFIG_X86_LOCAL_APIC */
+#endif				/* CONFIG_X86_LOCAL_APIC */
 
-#endif	/* X86 */
+#endif				/* X86 */
 
 #define BAD_MADT_ENTRY(entry, end) (					    \
 		(!entry) || (unsigned long)entry + sizeof(*entry) > end ||  \
@@ -60,13 +66,8 @@ static inline int ioapic_setup_disabled(void) { return 0; }
 
 #define PREFIX			"ACPI: "
 
-#ifdef CONFIG_ACPI_PCI
 int acpi_noirq __initdata;	/* skip ACPI IRQ initialization */
-int acpi_pci_disabled __initdata; /* skip ACPI PCI scan and IRQ initialization */
-#else
-int acpi_noirq __initdata = 1;
-int acpi_pci_disabled __initdata = 1;
-#endif
+int acpi_pci_disabled __initdata;	/* skip ACPI PCI scan and IRQ initialization */
 int acpi_ht __initdata = 1;	/* enable HT */
 
 int acpi_lapic;
@@ -88,7 +89,7 @@ static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE;
 
 #define MAX_MADT_ENTRIES	256
 u8 x86_acpiid_to_apicid[MAX_MADT_ENTRIES] =
-			{ [0 ... MAX_MADT_ENTRIES-1] = 0xff };
+    {[0 ... MAX_MADT_ENTRIES - 1] = 0xff };
 EXPORT_SYMBOL(x86_acpiid_to_apicid);
 
 /* --------------------------------------------------------------------------
@@ -99,7 +100,7 @@ EXPORT_SYMBOL(x86_acpiid_to_apicid);
  * The default interrupt routing model is PIC (8259).  This gets
  * overriden if IOAPICs are enumerated (below).
  */
-enum acpi_irq_model_id		acpi_irq_model = ACPI_IRQ_MODEL_PIC;
+enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PIC;
 
 #ifdef	CONFIG_X86_64
 
@@ -107,7 +108,7 @@ enum acpi_irq_model_id		acpi_irq_model = ACPI_IRQ_MODEL_PIC;
 char *__acpi_map_table(unsigned long phys_addr, unsigned long size)
 {
 	if (!phys_addr || !size)
-	return NULL;
+		return NULL;
 
 	if (phys_addr < (end_pfn_map << PAGE_SHIFT))
 		return __va(phys_addr);
@@ -134,8 +135,8 @@ char *__acpi_map_table(unsigned long phys, unsigned long size)
 	unsigned long base, offset, mapped_size;
 	int idx;
 
-	if (phys + size < 8*1024*1024) 
-		return __va(phys); 
+	if (phys + size < 8 * 1024 * 1024)
+		return __va(phys);
 
 	offset = phys & (PAGE_SIZE - 1);
 	mapped_size = PAGE_SIZE - offset;
@@ -154,7 +155,7 @@ char *__acpi_map_table(unsigned long phys, unsigned long size)
 		mapped_size += PAGE_SIZE;
 	}
 
-	return ((unsigned char *) base + offset);
+	return ((unsigned char *)base + offset);
 }
 #endif
 
@@ -172,7 +173,7 @@ int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size)
 	if (!phys_addr || !size)
 		return -EINVAL;
 
-	mcfg = (struct acpi_table_mcfg *) __acpi_map_table(phys_addr, size);
+	mcfg = (struct acpi_table_mcfg *)__acpi_map_table(phys_addr, size);
 	if (!mcfg) {
 		printk(KERN_WARNING PREFIX "Unable to map MCFG\n");
 		return -ENODEV;
@@ -209,20 +210,17 @@ int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size)
 
 	return 0;
 }
-#endif /* CONFIG_PCI_MMCONFIG */
+#endif				/* CONFIG_PCI_MMCONFIG */
 
 #ifdef CONFIG_X86_LOCAL_APIC
-static int __init
-acpi_parse_madt (
-	unsigned long		phys_addr,
-	unsigned long		size)
+static int __init acpi_parse_madt(unsigned long phys_addr, unsigned long size)
 {
-	struct acpi_table_madt	*madt = NULL;
+	struct acpi_table_madt *madt = NULL;
 
 	if (!phys_addr || !size)
 		return -EINVAL;
 
-	madt = (struct acpi_table_madt *) __acpi_map_table(phys_addr, size);
+	madt = (struct acpi_table_madt *)__acpi_map_table(phys_addr, size);
 	if (!madt) {
 		printk(KERN_WARNING PREFIX "Unable to map MADT\n");
 		return -ENODEV;
@@ -232,22 +230,20 @@ acpi_parse_madt (
 		acpi_lapic_addr = (u64) madt->lapic_address;
 
 		printk(KERN_DEBUG PREFIX "Local APIC address 0x%08x\n",
-			madt->lapic_address);
+		       madt->lapic_address);
 	}
 
 	acpi_madt_oem_check(madt->header.oem_id, madt->header.oem_table_id);
-	
+
 	return 0;
 }
 
-
 static int __init
-acpi_parse_lapic (
-	acpi_table_entry_header *header, const unsigned long end)
+acpi_parse_lapic(acpi_table_entry_header * header, const unsigned long end)
 {
-	struct acpi_table_lapic	*processor = NULL;
+	struct acpi_table_lapic *processor = NULL;
 
-	processor = (struct acpi_table_lapic*) header;
+	processor = (struct acpi_table_lapic *)header;
 
 	if (BAD_MADT_ENTRY(processor, end))
 		return -EINVAL;
@@ -260,20 +256,19 @@ acpi_parse_lapic (
 
 	x86_acpiid_to_apicid[processor->acpi_id] = processor->id;
 
-	mp_register_lapic (
-		processor->id,					   /* APIC ID */
-		processor->flags.enabled);			  /* Enabled? */
+	mp_register_lapic(processor->id,	/* APIC ID */
+			  processor->flags.enabled);	/* Enabled? */
 
 	return 0;
 }
 
 static int __init
-acpi_parse_lapic_addr_ovr (
-	acpi_table_entry_header *header, const unsigned long end)
+acpi_parse_lapic_addr_ovr(acpi_table_entry_header * header,
+			  const unsigned long end)
 {
 	struct acpi_table_lapic_addr_ovr *lapic_addr_ovr = NULL;
 
-	lapic_addr_ovr = (struct acpi_table_lapic_addr_ovr*) header;
+	lapic_addr_ovr = (struct acpi_table_lapic_addr_ovr *)header;
 
 	if (BAD_MADT_ENTRY(lapic_addr_ovr, end))
 		return -EINVAL;
@@ -284,12 +279,11 @@ acpi_parse_lapic_addr_ovr (
 }
 
 static int __init
-acpi_parse_lapic_nmi (
-	acpi_table_entry_header *header, const unsigned long end)
+acpi_parse_lapic_nmi(acpi_table_entry_header * header, const unsigned long end)
 {
 	struct acpi_table_lapic_nmi *lapic_nmi = NULL;
 
-	lapic_nmi = (struct acpi_table_lapic_nmi*) header;
+	lapic_nmi = (struct acpi_table_lapic_nmi *)header;
 
 	if (BAD_MADT_ENTRY(lapic_nmi, end))
 		return -EINVAL;
@@ -302,37 +296,32 @@ acpi_parse_lapic_nmi (
 	return 0;
 }
 
+#endif				/*CONFIG_X86_LOCAL_APIC */
 
-#endif /*CONFIG_X86_LOCAL_APIC*/
-
-#if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_ACPI_INTERPRETER)
+#ifdef CONFIG_X86_IO_APIC
 
 static int __init
-acpi_parse_ioapic (
-	acpi_table_entry_header *header, const unsigned long end)
+acpi_parse_ioapic(acpi_table_entry_header * header, const unsigned long end)
 {
 	struct acpi_table_ioapic *ioapic = NULL;
 
-	ioapic = (struct acpi_table_ioapic*) header;
+	ioapic = (struct acpi_table_ioapic *)header;
 
 	if (BAD_MADT_ENTRY(ioapic, end))
 		return -EINVAL;
- 
+
 	acpi_table_print_madt_entry(header);
 
-	mp_register_ioapic (
-		ioapic->id,
-		ioapic->address,
-		ioapic->global_irq_base);
- 
+	mp_register_ioapic(ioapic->id,
+			   ioapic->address, ioapic->global_irq_base);
+
 	return 0;
 }
 
 /*
  * Parse Interrupt Source Override for the ACPI SCI
  */
-static void
-acpi_sci_ioapic_setup(u32 gsi, u16 polarity, u16 trigger)
+static void acpi_sci_ioapic_setup(u32 gsi, u16 polarity, u16 trigger)
 {
 	if (trigger == 0)	/* compatible SCI trigger is level */
 		trigger = 3;
@@ -348,7 +337,7 @@ acpi_sci_ioapic_setup(u32 gsi, u16 polarity, u16 trigger)
 		polarity = acpi_sci_flags.polarity;
 
 	/*
- 	 * mp_config_acpi_legacy_irqs() already setup IRQs < 16
+	 * mp_config_acpi_legacy_irqs() already setup IRQs < 16
 	 * If GSI is < 16, this will update its flags,
 	 * else it will create a new mp_irqs[] entry.
 	 */
@@ -363,12 +352,12 @@ acpi_sci_ioapic_setup(u32 gsi, u16 polarity, u16 trigger)
 }
 
 static int __init
-acpi_parse_int_src_ovr (
-	acpi_table_entry_header *header, const unsigned long end)
+acpi_parse_int_src_ovr(acpi_table_entry_header * header,
+		       const unsigned long end)
 {
 	struct acpi_table_int_src_ovr *intsrc = NULL;
 
-	intsrc = (struct acpi_table_int_src_ovr*) header;
+	intsrc = (struct acpi_table_int_src_ovr *)header;
 
 	if (BAD_MADT_ENTRY(intsrc, end))
 		return -EINVAL;
@@ -377,33 +366,30 @@ acpi_parse_int_src_ovr (
 
 	if (intsrc->bus_irq == acpi_fadt.sci_int) {
 		acpi_sci_ioapic_setup(intsrc->global_irq,
-			intsrc->flags.polarity, intsrc->flags.trigger);
+				      intsrc->flags.polarity,
+				      intsrc->flags.trigger);
 		return 0;
 	}
 
 	if (acpi_skip_timer_override &&
-		intsrc->bus_irq == 0 && intsrc->global_irq == 2) {
-			printk(PREFIX "BIOS IRQ0 pin2 override ignored.\n");
-			return 0;
+	    intsrc->bus_irq == 0 && intsrc->global_irq == 2) {
+		printk(PREFIX "BIOS IRQ0 pin2 override ignored.\n");
+		return 0;
 	}
 
-	mp_override_legacy_irq (
-		intsrc->bus_irq,
-		intsrc->flags.polarity,
-		intsrc->flags.trigger,
-		intsrc->global_irq);
+	mp_override_legacy_irq(intsrc->bus_irq,
+			       intsrc->flags.polarity,
+			       intsrc->flags.trigger, intsrc->global_irq);
 
 	return 0;
 }
 
-
 static int __init
-acpi_parse_nmi_src (
-	acpi_table_entry_header *header, const unsigned long end)
+acpi_parse_nmi_src(acpi_table_entry_header * header, const unsigned long end)
 {
 	struct acpi_table_nmi_src *nmi_src = NULL;
 
-	nmi_src = (struct acpi_table_nmi_src*) header;
+	nmi_src = (struct acpi_table_nmi_src *)header;
 
 	if (BAD_MADT_ENTRY(nmi_src, end))
 		return -EINVAL;
@@ -415,9 +401,7 @@ acpi_parse_nmi_src (
 	return 0;
 }
 
-#endif /* CONFIG_X86_IO_APIC */
-
-#ifdef	CONFIG_ACPI_BUS
+#endif				/* CONFIG_X86_IO_APIC */
 
 /*
  * acpi_pic_sci_set_trigger()
@@ -433,8 +417,7 @@ acpi_parse_nmi_src (
  * ECLR2 is IRQ's 8-15 (IRQ 8, 13 must be 0)
  */
 
-void __init
-acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger)
+void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger)
 {
 	unsigned int mask = 1 << irq;
 	unsigned int old, new;
@@ -454,10 +437,10 @@ acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger)
 	 * routing tables..
 	 */
 	switch (trigger) {
-	case 1:	/* Edge - clear */
+	case 1:		/* Edge - clear */
 		new &= ~mask;
 		break;
-	case 3: /* Level - set */
+	case 3:		/* Level - set */
 		new |= mask;
 		break;
 	}
@@ -470,21 +453,22 @@ acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger)
 	outb(new >> 8, 0x4d1);
 }
 
-
-#endif /* CONFIG_ACPI_BUS */
-
 int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
 {
 #ifdef CONFIG_X86_IO_APIC
 	if (use_pci_vector() && !platform_legacy_irq(gsi))
- 		*irq = IO_APIC_VECTOR(gsi);
+		*irq = IO_APIC_VECTOR(gsi);
 	else
 #endif
 		*irq = gsi;
 	return 0;
 }
 
-unsigned int acpi_register_gsi(u32 gsi, int edge_level, int active_high_low)
+/*
+ * success: return IRQ number (>=0)
+ * failure: return < 0
+ */
+int acpi_register_gsi(u32 gsi, int edge_level, int active_high_low)
 {
 	unsigned int irq;
 	unsigned int plat_gsi = gsi;
@@ -497,7 +481,7 @@ unsigned int acpi_register_gsi(u32 gsi, int edge_level, int active_high_low)
 		extern void eisa_set_level_irq(unsigned int irq);
 
 		if (edge_level == ACPI_LEVEL_SENSITIVE)
-				eisa_set_level_irq(gsi);
+			eisa_set_level_irq(gsi);
 	}
 #endif
 
@@ -509,60 +493,58 @@ unsigned int acpi_register_gsi(u32 gsi, int edge_level, int active_high_low)
 	acpi_gsi_to_irq(plat_gsi, &irq);
 	return irq;
 }
+
 EXPORT_SYMBOL(acpi_register_gsi);
 
 /*
  *  ACPI based hotplug support for CPU
  */
 #ifdef CONFIG_ACPI_HOTPLUG_CPU
-int
-acpi_map_lsapic(acpi_handle handle, int *pcpu)
+int acpi_map_lsapic(acpi_handle handle, int *pcpu)
 {
 	/* TBD */
 	return -EINVAL;
 }
-EXPORT_SYMBOL(acpi_map_lsapic);
 
+EXPORT_SYMBOL(acpi_map_lsapic);
 
-int
-acpi_unmap_lsapic(int cpu)
+int acpi_unmap_lsapic(int cpu)
 {
 	/* TBD */
 	return -EINVAL;
 }
+
 EXPORT_SYMBOL(acpi_unmap_lsapic);
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+#endif				/* CONFIG_ACPI_HOTPLUG_CPU */
 
-int
-acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)
+int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)
 {
 	/* TBD */
 	return -EINVAL;
 }
+
 EXPORT_SYMBOL(acpi_register_ioapic);
 
-int
-acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base)
+int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base)
 {
 	/* TBD */
 	return -EINVAL;
 }
+
 EXPORT_SYMBOL(acpi_unregister_ioapic);
 
 static unsigned long __init
-acpi_scan_rsdp (
-	unsigned long		start,
-	unsigned long		length)
+acpi_scan_rsdp(unsigned long start, unsigned long length)
 {
-	unsigned long		offset = 0;
-	unsigned long		sig_len = sizeof("RSD PTR ") - 1;
+	unsigned long offset = 0;
+	unsigned long sig_len = sizeof("RSD PTR ") - 1;
 
 	/*
 	 * Scan all 16-byte boundaries of the physical memory region for the
 	 * RSDP signature.
 	 */
 	for (offset = 0; offset < length; offset += 16) {
-		if (strncmp((char *) (start + offset), "RSD PTR ", sig_len))
+		if (strncmp((char *)(start + offset), "RSD PTR ", sig_len))
 			continue;
 		return (start + offset);
 	}
@@ -575,20 +557,19 @@ static int __init acpi_parse_sbf(unsigned long phys_addr, unsigned long size)
 	struct acpi_table_sbf *sb;
 
 	if (!phys_addr || !size)
-	return -EINVAL;
+		return -EINVAL;
 
-	sb = (struct acpi_table_sbf *) __acpi_map_table(phys_addr, size);
+	sb = (struct acpi_table_sbf *)__acpi_map_table(phys_addr, size);
 	if (!sb) {
 		printk(KERN_WARNING PREFIX "Unable to map SBF\n");
 		return -ENODEV;
 	}
 
-	sbf_port = sb->sbf_cmos; /* Save CMOS port */
+	sbf_port = sb->sbf_cmos;	/* Save CMOS port */
 
 	return 0;
 }
 
-
 #ifdef CONFIG_HPET_TIMER
 
 static int __init acpi_parse_hpet(unsigned long phys, unsigned long size)
@@ -598,7 +579,7 @@ static int __init acpi_parse_hpet(unsigned long phys, unsigned long size)
 	if (!phys || !size)
 		return -EINVAL;
 
-	hpet_tbl = (struct acpi_table_hpet *) __acpi_map_table(phys, size);
+	hpet_tbl = (struct acpi_table_hpet *)__acpi_map_table(phys, size);
 	if (!hpet_tbl) {
 		printk(KERN_WARNING PREFIX "Unable to map HPET\n");
 		return -ENODEV;
@@ -609,22 +590,21 @@ static int __init acpi_parse_hpet(unsigned long phys, unsigned long size)
 		       "memory.\n");
 		return -1;
 	}
-
 #ifdef	CONFIG_X86_64
-        vxtime.hpet_address = hpet_tbl->addr.addrl |
-                ((long) hpet_tbl->addr.addrh << 32);
+	vxtime.hpet_address = hpet_tbl->addr.addrl |
+	    ((long)hpet_tbl->addr.addrh << 32);
 
-        printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n",
-               hpet_tbl->id, vxtime.hpet_address);
-#else	/* X86 */
+	printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n",
+	       hpet_tbl->id, vxtime.hpet_address);
+#else				/* X86 */
 	{
 		extern unsigned long hpet_address;
 
 		hpet_address = hpet_tbl->addr.addrl;
 		printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n",
-			hpet_tbl->id, hpet_address);
+		       hpet_tbl->id, hpet_address);
 	}
-#endif	/* X86 */
+#endif				/* X86 */
 
 	return 0;
 }
@@ -640,28 +620,25 @@ static int __init acpi_parse_fadt(unsigned long phys, unsigned long size)
 {
 	struct fadt_descriptor_rev2 *fadt = NULL;
 
-	fadt = (struct fadt_descriptor_rev2*) __acpi_map_table(phys,size);
-	if(!fadt) {
+	fadt = (struct fadt_descriptor_rev2 *)__acpi_map_table(phys, size);
+	if (!fadt) {
 		printk(KERN_WARNING PREFIX "Unable to map FADT\n");
 		return 0;
 	}
-
-#ifdef	CONFIG_ACPI_INTERPRETER
 	/* initialize sci_int early for INT_SRC_OVR MADT parsing */
 	acpi_fadt.sci_int = fadt->sci_int;
-#endif
 
-#ifdef CONFIG_ACPI_BUS
 	/* initialize rev and apic_phys_dest_mode for x86_64 genapic */
 	acpi_fadt.revision = fadt->revision;
-	acpi_fadt.force_apic_physical_destination_mode = fadt->force_apic_physical_destination_mode;
-#endif
+	acpi_fadt.force_apic_physical_destination_mode =
+	    fadt->force_apic_physical_destination_mode;
 
 #ifdef CONFIG_X86_PM_TIMER
 	/* detect the location of the ACPI PM Timer */
 	if (fadt->revision >= FADT2_REVISION_ID) {
 		/* FADT rev. 2 */
-		if (fadt->xpm_tmr_blk.address_space_id != ACPI_ADR_SPACE_SYSTEM_IO)
+		if (fadt->xpm_tmr_blk.address_space_id !=
+		    ACPI_ADR_SPACE_SYSTEM_IO)
 			return 0;
 
 		pmtmr_ioport = fadt->xpm_tmr_blk.address;
@@ -670,16 +647,15 @@ static int __init acpi_parse_fadt(unsigned long phys, unsigned long size)
 		pmtmr_ioport = fadt->V1_pm_tmr_blk;
 	}
 	if (pmtmr_ioport)
-		printk(KERN_INFO PREFIX "PM-Timer IO Port: %#x\n", pmtmr_ioport);
+		printk(KERN_INFO PREFIX "PM-Timer IO Port: %#x\n",
+		       pmtmr_ioport);
 #endif
 	return 0;
 }
 
-
-unsigned long __init
-acpi_find_rsdp (void)
+unsigned long __init acpi_find_rsdp(void)
 {
-	unsigned long		rsdp_phys = 0;
+	unsigned long rsdp_phys = 0;
 
 	if (efi_enabled) {
 		if (efi.acpi20)
@@ -691,9 +667,9 @@ acpi_find_rsdp (void)
 	 * Scan memory looking for the RSDP signature. First search EBDA (low
 	 * memory) paragraphs and then search upper memory (E0000-FFFFF).
 	 */
-	rsdp_phys = acpi_scan_rsdp (0, 0x400);
+	rsdp_phys = acpi_scan_rsdp(0, 0x400);
 	if (!rsdp_phys)
-		rsdp_phys = acpi_scan_rsdp (0xE0000, 0x20000);
+		rsdp_phys = acpi_scan_rsdp(0xE0000, 0x20000);
 
 	return rsdp_phys;
 }
@@ -703,8 +679,7 @@ acpi_find_rsdp (void)
  * Parse LAPIC entries in MADT
  * returns 0 on success, < 0 on error
  */
-static int __init
-acpi_parse_madt_lapic_entries(void)
+static int __init acpi_parse_madt_lapic_entries(void)
 {
 	int count;
 
@@ -713,28 +688,31 @@ acpi_parse_madt_lapic_entries(void)
 	 * and (optionally) overriden by a LAPIC_ADDR_OVR entry (64-bit value).
 	 */
 
-	count = acpi_table_parse_madt(ACPI_MADT_LAPIC_ADDR_OVR, acpi_parse_lapic_addr_ovr, 0);
+	count =
+	    acpi_table_parse_madt(ACPI_MADT_LAPIC_ADDR_OVR,
+				  acpi_parse_lapic_addr_ovr, 0);
 	if (count < 0) {
-		printk(KERN_ERR PREFIX "Error parsing LAPIC address override entry\n");
+		printk(KERN_ERR PREFIX
+		       "Error parsing LAPIC address override entry\n");
 		return count;
 	}
 
 	mp_register_lapic_address(acpi_lapic_addr);
 
 	count = acpi_table_parse_madt(ACPI_MADT_LAPIC, acpi_parse_lapic,
-				       MAX_APICS);
-	if (!count) { 
+				      MAX_APICS);
+	if (!count) {
 		printk(KERN_ERR PREFIX "No LAPIC entries present\n");
 		/* TBD: Cleanup to allow fallback to MPS */
 		return -ENODEV;
-	}
-	else if (count < 0) {
+	} else if (count < 0) {
 		printk(KERN_ERR PREFIX "Error parsing LAPIC entry\n");
 		/* TBD: Cleanup to allow fallback to MPS */
 		return count;
 	}
 
-	count = acpi_table_parse_madt(ACPI_MADT_LAPIC_NMI, acpi_parse_lapic_nmi, 0);
+	count =
+	    acpi_table_parse_madt(ACPI_MADT_LAPIC_NMI, acpi_parse_lapic_nmi, 0);
 	if (count < 0) {
 		printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n");
 		/* TBD: Cleanup to allow fallback to MPS */
@@ -742,15 +720,14 @@ acpi_parse_madt_lapic_entries(void)
 	}
 	return 0;
 }
-#endif /* CONFIG_X86_LOCAL_APIC */
+#endif				/* CONFIG_X86_LOCAL_APIC */
 
-#if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_ACPI_INTERPRETER)
+#ifdef	CONFIG_X86_IO_APIC
 /*
  * Parse IOAPIC related entries in MADT
  * returns 0 on success, < 0 on error
  */
-static int __init
-acpi_parse_madt_ioapic_entries(void)
+static int __init acpi_parse_madt_ioapic_entries(void)
 {
 	int count;
 
@@ -762,30 +739,34 @@ acpi_parse_madt_ioapic_entries(void)
 	 */
 	if (acpi_disabled || acpi_noirq) {
 		return -ENODEV;
-        }
+	}
 
 	/*
- 	 * if "noapic" boot option, don't look for IO-APICs
+	 * if "noapic" boot option, don't look for IO-APICs
 	 */
 	if (skip_ioapic_setup) {
 		printk(KERN_INFO PREFIX "Skipping IOAPIC probe "
-			"due to 'noapic' option.\n");
+		       "due to 'noapic' option.\n");
 		return -ENODEV;
 	}
 
-	count = acpi_table_parse_madt(ACPI_MADT_IOAPIC, acpi_parse_ioapic, MAX_IO_APICS);
+	count =
+	    acpi_table_parse_madt(ACPI_MADT_IOAPIC, acpi_parse_ioapic,
+				  MAX_IO_APICS);
 	if (!count) {
 		printk(KERN_ERR PREFIX "No IOAPIC entries present\n");
 		return -ENODEV;
-	}
-	else if (count < 0) {
+	} else if (count < 0) {
 		printk(KERN_ERR PREFIX "Error parsing IOAPIC entry\n");
 		return count;
 	}
 
-	count = acpi_table_parse_madt(ACPI_MADT_INT_SRC_OVR, acpi_parse_int_src_ovr, NR_IRQ_VECTORS);
+	count =
+	    acpi_table_parse_madt(ACPI_MADT_INT_SRC_OVR, acpi_parse_int_src_ovr,
+				  NR_IRQ_VECTORS);
 	if (count < 0) {
-		printk(KERN_ERR PREFIX "Error parsing interrupt source overrides entry\n");
+		printk(KERN_ERR PREFIX
+		       "Error parsing interrupt source overrides entry\n");
 		/* TBD: Cleanup to allow fallback to MPS */
 		return count;
 	}
@@ -800,7 +781,9 @@ acpi_parse_madt_ioapic_entries(void)
 	/* Fill in identity legacy mapings where no override */
 	mp_config_acpi_legacy_irqs();
 
-	count = acpi_table_parse_madt(ACPI_MADT_NMI_SRC, acpi_parse_nmi_src, NR_IRQ_VECTORS);
+	count =
+	    acpi_table_parse_madt(ACPI_MADT_NMI_SRC, acpi_parse_nmi_src,
+				  NR_IRQ_VECTORS);
 	if (count < 0) {
 		printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n");
 		/* TBD: Cleanup to allow fallback to MPS */
@@ -814,11 +797,9 @@ static inline int acpi_parse_madt_ioapic_entries(void)
 {
 	return -1;
 }
-#endif /* !(CONFIG_X86_IO_APIC && CONFIG_ACPI_INTERPRETER) */
+#endif	/* !CONFIG_X86_IO_APIC */
 
-
-static void __init
-acpi_process_madt(void)
+static void __init acpi_process_madt(void)
 {
 #ifdef CONFIG_X86_LOCAL_APIC
 	int count, error;
@@ -853,7 +834,8 @@ acpi_process_madt(void)
 			/*
 			 * Dell Precision Workstation 410, 610 come here.
 			 */
-			printk(KERN_ERR PREFIX "Invalid BIOS MADT, disabling ACPI\n");
+			printk(KERN_ERR PREFIX
+			       "Invalid BIOS MADT, disabling ACPI\n");
 			disable_acpi();
 		}
 	}
@@ -865,7 +847,6 @@ extern int acpi_force;
 
 #ifdef __i386__
 
-#ifdef	CONFIG_ACPI_PCI
 static int __init disable_acpi_irq(struct dmi_system_id *d)
 {
 	if (!acpi_force) {
@@ -885,12 +866,11 @@ static int __init disable_acpi_pci(struct dmi_system_id *d)
 	}
 	return 0;
 }
-#endif
 
 static int __init dmi_disable_acpi(struct dmi_system_id *d)
 {
 	if (!acpi_force) {
-		printk(KERN_NOTICE "%s detected: acpi off\n",d->ident);
+		printk(KERN_NOTICE "%s detected: acpi off\n", d->ident);
 		disable_acpi();
 	} else {
 		printk(KERN_NOTICE
@@ -905,7 +885,8 @@ static int __init dmi_disable_acpi(struct dmi_system_id *d)
 static int __init force_acpi_ht(struct dmi_system_id *d)
 {
 	if (!acpi_force) {
-		printk(KERN_NOTICE "%s detected: force use of acpi=ht\n", d->ident);
+		printk(KERN_NOTICE "%s detected: force use of acpi=ht\n",
+		       d->ident);
 		disable_acpi();
 		acpi_ht = 1;
 	} else {
@@ -924,155 +905,155 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
 	 * Boxes that need ACPI disabled
 	 */
 	{
-		.callback = dmi_disable_acpi,
-		.ident = "IBM Thinkpad",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
-			DMI_MATCH(DMI_BOARD_NAME, "2629H1G"),
-		},
-	},
+	 .callback = dmi_disable_acpi,
+	 .ident = "IBM Thinkpad",
+	 .matches = {
+		     DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
+		     DMI_MATCH(DMI_BOARD_NAME, "2629H1G"),
+		     },
+	 },
 
 	/*
 	 * Boxes that need acpi=ht
 	 */
 	{
-		.callback = force_acpi_ht,
-		.ident = "FSC Primergy T850",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "PRIMERGY T850"),
-		},
-	},
+	 .callback = force_acpi_ht,
+	 .ident = "FSC Primergy T850",
+	 .matches = {
+		     DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+		     DMI_MATCH(DMI_PRODUCT_NAME, "PRIMERGY T850"),
+		     },
+	 },
 	{
-		.callback = force_acpi_ht,
-		.ident = "DELL GX240",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "Dell Computer Corporation"),
-			DMI_MATCH(DMI_BOARD_NAME, "OptiPlex GX240"),
-		},
-	},
+	 .callback = force_acpi_ht,
+	 .ident = "DELL GX240",
+	 .matches = {
+		     DMI_MATCH(DMI_BOARD_VENDOR, "Dell Computer Corporation"),
+		     DMI_MATCH(DMI_BOARD_NAME, "OptiPlex GX240"),
+		     },
+	 },
 	{
-		.callback = force_acpi_ht,
-		.ident = "HP VISUALIZE NT Workstation",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "HP VISUALIZE NT Workstation"),
-		},
-	},
+	 .callback = force_acpi_ht,
+	 .ident = "HP VISUALIZE NT Workstation",
+	 .matches = {
+		     DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+		     DMI_MATCH(DMI_PRODUCT_NAME, "HP VISUALIZE NT Workstation"),
+		     },
+	 },
 	{
-		.callback = force_acpi_ht,
-		.ident = "Compaq Workstation W8000",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Workstation W8000"),
-		},
-	},
+	 .callback = force_acpi_ht,
+	 .ident = "Compaq Workstation W8000",
+	 .matches = {
+		     DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
+		     DMI_MATCH(DMI_PRODUCT_NAME, "Workstation W8000"),
+		     },
+	 },
 	{
-		.callback = force_acpi_ht,
-		.ident = "ASUS P4B266",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
-			DMI_MATCH(DMI_BOARD_NAME, "P4B266"),
-		},
-	},
+	 .callback = force_acpi_ht,
+	 .ident = "ASUS P4B266",
+	 .matches = {
+		     DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
+		     DMI_MATCH(DMI_BOARD_NAME, "P4B266"),
+		     },
+	 },
 	{
-		.callback = force_acpi_ht,
-		.ident = "ASUS P2B-DS",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
-			DMI_MATCH(DMI_BOARD_NAME, "P2B-DS"),
-		},
-	},
+	 .callback = force_acpi_ht,
+	 .ident = "ASUS P2B-DS",
+	 .matches = {
+		     DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
+		     DMI_MATCH(DMI_BOARD_NAME, "P2B-DS"),
+		     },
+	 },
 	{
-		.callback = force_acpi_ht,
-		.ident = "ASUS CUR-DLS",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
-			DMI_MATCH(DMI_BOARD_NAME, "CUR-DLS"),
-		},
-	},
+	 .callback = force_acpi_ht,
+	 .ident = "ASUS CUR-DLS",
+	 .matches = {
+		     DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
+		     DMI_MATCH(DMI_BOARD_NAME, "CUR-DLS"),
+		     },
+	 },
 	{
-		.callback = force_acpi_ht,
-		.ident = "ABIT i440BX-W83977",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "ABIT <http://www.abit.com>"),
-			DMI_MATCH(DMI_BOARD_NAME, "i440BX-W83977 (BP6)"),
-		},
-	},
+	 .callback = force_acpi_ht,
+	 .ident = "ABIT i440BX-W83977",
+	 .matches = {
+		     DMI_MATCH(DMI_BOARD_VENDOR, "ABIT <http://www.abit.com>"),
+		     DMI_MATCH(DMI_BOARD_NAME, "i440BX-W83977 (BP6)"),
+		     },
+	 },
 	{
-		.callback = force_acpi_ht,
-		.ident = "IBM Bladecenter",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
-			DMI_MATCH(DMI_BOARD_NAME, "IBM eServer BladeCenter HS20"),
-		},
-	},
+	 .callback = force_acpi_ht,
+	 .ident = "IBM Bladecenter",
+	 .matches = {
+		     DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
+		     DMI_MATCH(DMI_BOARD_NAME, "IBM eServer BladeCenter HS20"),
+		     },
+	 },
 	{
-		.callback = force_acpi_ht,
-		.ident = "IBM eServer xSeries 360",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
-			DMI_MATCH(DMI_BOARD_NAME, "eServer xSeries 360"),
-		},
-	},
+	 .callback = force_acpi_ht,
+	 .ident = "IBM eServer xSeries 360",
+	 .matches = {
+		     DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
+		     DMI_MATCH(DMI_BOARD_NAME, "eServer xSeries 360"),
+		     },
+	 },
 	{
-		.callback = force_acpi_ht,
-		.ident = "IBM eserver xSeries 330",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
-			DMI_MATCH(DMI_BOARD_NAME, "eserver xSeries 330"),
-		},
-	},
+	 .callback = force_acpi_ht,
+	 .ident = "IBM eserver xSeries 330",
+	 .matches = {
+		     DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
+		     DMI_MATCH(DMI_BOARD_NAME, "eserver xSeries 330"),
+		     },
+	 },
 	{
-		.callback = force_acpi_ht,
-		.ident = "IBM eserver xSeries 440",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "eserver xSeries 440"),
-		},
-	},
-
-#ifdef	CONFIG_ACPI_PCI
+	 .callback = force_acpi_ht,
+	 .ident = "IBM eserver xSeries 440",
+	 .matches = {
+		     DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
+		     DMI_MATCH(DMI_PRODUCT_NAME, "eserver xSeries 440"),
+		     },
+	 },
+
 	/*
 	 * Boxes that need ACPI PCI IRQ routing disabled
 	 */
 	{
-		.callback = disable_acpi_irq,
-		.ident = "ASUS A7V",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC"),
-			DMI_MATCH(DMI_BOARD_NAME, "<A7V>"),
-			/* newer BIOS, Revision 1011, does work */
-			DMI_MATCH(DMI_BIOS_VERSION, "ASUS A7V ACPI BIOS Revision 1007"),
-		},
-	},
+	 .callback = disable_acpi_irq,
+	 .ident = "ASUS A7V",
+	 .matches = {
+		     DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC"),
+		     DMI_MATCH(DMI_BOARD_NAME, "<A7V>"),
+		     /* newer BIOS, Revision 1011, does work */
+		     DMI_MATCH(DMI_BIOS_VERSION,
+			       "ASUS A7V ACPI BIOS Revision 1007"),
+		     },
+	 },
 
 	/*
 	 * Boxes that need ACPI PCI IRQ routing and PCI scan disabled
 	 */
-	{	/* _BBN 0 bug */
-		.callback = disable_acpi_pci,
-		.ident = "ASUS PR-DLS",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
-			DMI_MATCH(DMI_BOARD_NAME, "PR-DLS"),
-			DMI_MATCH(DMI_BIOS_VERSION, "ASUS PR-DLS ACPI BIOS Revision 1010"),
-			DMI_MATCH(DMI_BIOS_DATE, "03/21/2003")
-		},
-	},
+	{			/* _BBN 0 bug */
+	 .callback = disable_acpi_pci,
+	 .ident = "ASUS PR-DLS",
+	 .matches = {
+		     DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
+		     DMI_MATCH(DMI_BOARD_NAME, "PR-DLS"),
+		     DMI_MATCH(DMI_BIOS_VERSION,
+			       "ASUS PR-DLS ACPI BIOS Revision 1010"),
+		     DMI_MATCH(DMI_BIOS_DATE, "03/21/2003")
+		     },
+	 },
 	{
-		.callback = disable_acpi_pci,
-		.ident = "Acer TravelMate 36x Laptop",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- 			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
-		},
-	},
-#endif
-	{ }
+	 .callback = disable_acpi_pci,
+	 .ident = "Acer TravelMate 36x Laptop",
+	 .matches = {
+		     DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+		     DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
+		     },
+	 },
+	{}
 };
 
-#endif	/* __i386__ */
+#endif				/* __i386__ */
 
 /*
  * acpi_boot_table_init() and acpi_boot_init()
@@ -1097,8 +1078,7 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
  *	!0: failure
  */
 
-int __init
-acpi_boot_table_init(void)
+int __init acpi_boot_table_init(void)
 {
 	int error;
 
@@ -1111,7 +1091,7 @@ acpi_boot_table_init(void)
 	 * One exception: acpi=ht continues far enough to enumerate LAPICs
 	 */
 	if (acpi_disabled && !acpi_ht)
-		 return 1;
+		return 1;
 
 	/* 
 	 * Initialize the ACPI boot-time table parser.
@@ -1121,7 +1101,6 @@ acpi_boot_table_init(void)
 		disable_acpi();
 		return error;
 	}
-
 #ifdef __i386__
 	check_acpi_pci();
 #endif
@@ -1145,7 +1124,6 @@ acpi_boot_table_init(void)
 	return 0;
 }
 
-
 int __init acpi_boot_init(void)
 {
 	/*
@@ -1153,7 +1131,7 @@ int __init acpi_boot_init(void)
 	 * One exception: acpi=ht continues far enough to enumerate LAPICs
 	 */
 	if (acpi_disabled && !acpi_ht)
-		 return 1;
+		return 1;
 
 	acpi_table_parse(ACPI_BOOT, acpi_parse_sbf);
 
@@ -1171,4 +1149,3 @@ int __init acpi_boot_init(void)
 
 	return 0;
 }
-
diff --git a/arch/i386/kernel/acpi/earlyquirk.c b/arch/i386/kernel/acpi/earlyquirk.c
index 726a5ca4b165..f1b9d2a46dab 100644
--- a/arch/i386/kernel/acpi/earlyquirk.c
+++ b/arch/i386/kernel/acpi/earlyquirk.c
@@ -8,44 +8,44 @@
 #include <asm/pci-direct.h>
 #include <asm/acpi.h>
 
-static int __init check_bridge(int vendor, int device) 
+static int __init check_bridge(int vendor, int device)
 {
 	/* According to Nvidia all timer overrides are bogus. Just ignore
 	   them all. */
-	if (vendor == PCI_VENDOR_ID_NVIDIA) { 
-		acpi_skip_timer_override = 1; 		
+	if (vendor == PCI_VENDOR_ID_NVIDIA) {
+		acpi_skip_timer_override = 1;
 	}
 	return 0;
 }
-   
-void __init check_acpi_pci(void) 
-{ 
-	int num,slot,func; 
+
+void __init check_acpi_pci(void)
+{
+	int num, slot, func;
 
 	/* Assume the machine supports type 1. If not it will 
 	   always read ffffffff and should not have any side effect. */
 
 	/* Poor man's PCI discovery */
-	for (num = 0; num < 32; num++) { 
-		for (slot = 0; slot < 32; slot++) { 
-			for (func = 0; func < 8; func++) { 
+	for (num = 0; num < 32; num++) {
+		for (slot = 0; slot < 32; slot++) {
+			for (func = 0; func < 8; func++) {
 				u32 class;
 				u32 vendor;
-				class = read_pci_config(num,slot,func,
+				class = read_pci_config(num, slot, func,
 							PCI_CLASS_REVISION);
 				if (class == 0xffffffff)
-					break; 
+					break;
 
 				if ((class >> 16) != PCI_CLASS_BRIDGE_PCI)
-					continue; 
-				
-				vendor = read_pci_config(num, slot, func, 
+					continue;
+
+				vendor = read_pci_config(num, slot, func,
 							 PCI_VENDOR_ID);
-				
-				if (check_bridge(vendor&0xffff, vendor >> 16))
-					return; 
-			} 
-			
+
+				if (check_bridge(vendor & 0xffff, vendor >> 16))
+					return;
+			}
+
 		}
 	}
 }
diff --git a/arch/i386/kernel/acpi/sleep.c b/arch/i386/kernel/acpi/sleep.c
index c1af93032ff3..1cb2b186a3af 100644
--- a/arch/i386/kernel/acpi/sleep.c
+++ b/arch/i386/kernel/acpi/sleep.c
@@ -20,12 +20,13 @@ extern void zap_low_mappings(void);
 
 extern unsigned long FASTCALL(acpi_copy_wakeup_routine(unsigned long));
 
-static void init_low_mapping(pgd_t *pgd, int pgd_limit)
+static void init_low_mapping(pgd_t * pgd, int pgd_limit)
 {
 	int pgd_ofs = 0;
 
-	while ((pgd_ofs < pgd_limit) && (pgd_ofs + USER_PTRS_PER_PGD < PTRS_PER_PGD)) {
-		set_pgd(pgd, *(pgd+USER_PTRS_PER_PGD));
+	while ((pgd_ofs < pgd_limit)
+	       && (pgd_ofs + USER_PTRS_PER_PGD < PTRS_PER_PGD)) {
+		set_pgd(pgd, *(pgd + USER_PTRS_PER_PGD));
 		pgd_ofs++, pgd++;
 	}
 	flush_tlb_all();
@@ -37,12 +38,13 @@ static void init_low_mapping(pgd_t *pgd, int pgd_limit)
  * Create an identity mapped page table and copy the wakeup routine to
  * low memory.
  */
-int acpi_save_state_mem (void)
+int acpi_save_state_mem(void)
 {
 	if (!acpi_wakeup_address)
 		return 1;
 	init_low_mapping(swapper_pg_dir, USER_PTRS_PER_PGD);
-	memcpy((void *) acpi_wakeup_address, &wakeup_start, &wakeup_end - &wakeup_start);
+	memcpy((void *)acpi_wakeup_address, &wakeup_start,
+	       &wakeup_end - &wakeup_start);
 	acpi_copy_wakeup_routine(acpi_wakeup_address);
 
 	return 0;
@@ -51,7 +53,7 @@ int acpi_save_state_mem (void)
 /*
  * acpi_restore_state - undo effects of acpi_save_state_mem
  */
-void acpi_restore_state_mem (void)
+void acpi_restore_state_mem(void)
 {
 	zap_low_mappings();
 }
@@ -67,7 +69,8 @@ void acpi_restore_state_mem (void)
 void __init acpi_reserve_bootmem(void)
 {
 	if ((&wakeup_end - &wakeup_start) > PAGE_SIZE) {
-		printk(KERN_ERR "ACPI: Wakeup code way too big, S3 disabled.\n");
+		printk(KERN_ERR
+		       "ACPI: Wakeup code way too big, S3 disabled.\n");
 		return;
 	}
 
@@ -90,10 +93,8 @@ static int __init acpi_sleep_setup(char *str)
 	return 1;
 }
 
-
 __setup("acpi_sleep=", acpi_sleep_setup);
 
-
 static __init int reset_videomode_after_s3(struct dmi_system_id *d)
 {
 	acpi_video_flags |= 2;
@@ -101,14 +102,14 @@ static __init int reset_videomode_after_s3(struct dmi_system_id *d)
 }
 
 static __initdata struct dmi_system_id acpisleep_dmi_table[] = {
-	{	/* Reset video mode after returning from ACPI S3 sleep */
-		.callback = reset_videomode_after_s3,
-		.ident = "Toshiba Satellite 4030cdt",
-		.matches = {
-			DMI_MATCH(DMI_PRODUCT_NAME, "S4030CDT/4.3"),
-		},
-	},
-	{ }
+	{			/* Reset video mode after returning from ACPI S3 sleep */
+	 .callback = reset_videomode_after_s3,
+	 .ident = "Toshiba Satellite 4030cdt",
+	 .matches = {
+		     DMI_MATCH(DMI_PRODUCT_NAME, "S4030CDT/4.3"),
+		     },
+	 },
+	{}
 };
 
 static int __init acpisleep_dmi_init(void)
diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
index 60a9e54dd20e..822c8ce9d1f1 100644
--- a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -31,6 +31,7 @@
 #include <linux/cpufreq.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/compiler.h>
 #include <asm/io.h>
 #include <asm/delay.h>
 #include <asm/uaccess.h>
@@ -57,6 +58,8 @@ static struct cpufreq_acpi_io	*acpi_io_data[NR_CPUS];
 
 static struct cpufreq_driver acpi_cpufreq_driver;
 
+static unsigned int acpi_pstate_strict;
+
 static int
 acpi_processor_write_port(
 	u16	port,
@@ -163,34 +166,44 @@ acpi_processor_set_performance (
 	}
 
 	/*
-	 * Then we read the 'status_register' and compare the value with the
-	 * target state's 'status' to make sure the transition was successful.
-	 * Note that we'll poll for up to 1ms (100 cycles of 10us) before
-	 * giving up.
+	 * Assume the write went through when acpi_pstate_strict is not used.
+	 * As read status_register is an expensive operation and there 
+	 * are no specific error cases where an IO port write will fail.
 	 */
-
-	port = data->acpi_data.status_register.address;
-	bit_width = data->acpi_data.status_register.bit_width;
-
-	dprintk("Looking for 0x%08x from port 0x%04x\n",
-		(u32) data->acpi_data.states[state].status, port);
-
-	for (i=0; i<100; i++) {
-		ret = acpi_processor_read_port(port, bit_width, &value);
-		if (ret) {	
-			dprintk("Invalid port width 0x%04x\n", bit_width);
-			retval = ret;
-			goto migrate_end;
+	if (acpi_pstate_strict) {
+		/* Then we read the 'status_register' and compare the value 
+		 * with the target state's 'status' to make sure the 
+		 * transition was successful.
+		 * Note that we'll poll for up to 1ms (100 cycles of 10us) 
+		 * before giving up.
+		 */
+
+		port = data->acpi_data.status_register.address;
+		bit_width = data->acpi_data.status_register.bit_width;
+
+		dprintk("Looking for 0x%08x from port 0x%04x\n",
+			(u32) data->acpi_data.states[state].status, port);
+
+		for (i=0; i<100; i++) {
+			ret = acpi_processor_read_port(port, bit_width, &value);
+			if (ret) {	
+				dprintk("Invalid port width 0x%04x\n", bit_width);
+				retval = ret;
+				goto migrate_end;
+			}
+			if (value == (u32) data->acpi_data.states[state].status)
+				break;
+			udelay(10);
 		}
-		if (value == (u32) data->acpi_data.states[state].status)
-			break;
-		udelay(10);
+	} else {
+		i = 0;
+		value = (u32) data->acpi_data.states[state].status;
 	}
 
 	/* notify cpufreq */
 	cpufreq_notify_transition(&cpufreq_freqs, CPUFREQ_POSTCHANGE);
 
-	if (value != (u32) data->acpi_data.states[state].status) {
+	if (unlikely(value != (u32) data->acpi_data.states[state].status)) {
 		unsigned int tmp = cpufreq_freqs.new;
 		cpufreq_freqs.new = cpufreq_freqs.old;
 		cpufreq_freqs.old = tmp;
@@ -537,6 +550,8 @@ acpi_cpufreq_exit (void)
 	return;
 }
 
+module_param(acpi_pstate_strict, uint, 0644);
+MODULE_PARM_DESC(acpi_pstate_strict, "value 0 or non-zero. non-zero -> strict ACPI checks are performed during frequency changes.");
 
 late_initcall(acpi_cpufreq_init);
 module_exit(acpi_cpufreq_exit);
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index 0e727e6da5c9..889eda2d7b17 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -2423,7 +2423,7 @@ device_initcall(ioapic_init_sysfs);
                           ACPI-based IOAPIC Configuration
    -------------------------------------------------------------------------- */
 
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
 
 int __init io_apic_get_unique_id (int ioapic, int apic_id)
 {
@@ -2577,4 +2577,4 @@ int io_apic_set_pci_routing (int ioapic, int pin, int irq, int edge_level, int a
 	return 0;
 }
 
-#endif /*CONFIG_ACPI_BOOT*/
+#endif /* CONFIG_ACPI */
diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c
index 5d0b9a8fc43d..cafaeffe3818 100644
--- a/arch/i386/kernel/mpparse.c
+++ b/arch/i386/kernel/mpparse.c
@@ -668,8 +668,6 @@ void __init get_smp_config (void)
 	struct intel_mp_floating *mpf = mpf_found;
 
 	/*
-	 * ACPI may be used to obtain the entire SMP configuration or just to 
-	 * enumerate/configure processors (CONFIG_ACPI_BOOT).  Note that 
 	 * ACPI supports both logical (e.g. Hyper-Threading) and physical 
 	 * processors, where MPS only supports physical.
 	 */
@@ -825,7 +823,7 @@ void __init find_smp_config (void)
                             ACPI-based MP Configuration
    -------------------------------------------------------------------------- */
 
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
 
 void __init mp_register_lapic_address (
 	u64			address)
@@ -871,7 +869,7 @@ void __init mp_register_lapic (
 	MP_processor_info(&processor);
 }
 
-#if defined(CONFIG_X86_IO_APIC) && (defined(CONFIG_ACPI_INTERPRETER) || defined(CONFIG_ACPI_BOOT))
+#ifdef	CONFIG_X86_IO_APIC
 
 #define MP_ISA_BUS		0
 #define MP_MAX_IOAPIC_PIN	127
@@ -1086,11 +1084,9 @@ int mp_register_gsi (u32 gsi, int edge_level, int active_high_low)
 	 */
 	static int		gsi_to_irq[MAX_GSI_NUM];
 
-#ifdef CONFIG_ACPI_BUS
 	/* Don't set up the ACPI SCI because it's already set up */
 	if (acpi_fadt.sci_int == gsi)
 		return gsi;
-#endif
 
 	ioapic = mp_find_ioapic(gsi);
 	if (ioapic < 0) {
@@ -1133,13 +1129,11 @@ int mp_register_gsi (u32 gsi, int edge_level, int active_high_low)
 		if (gsi < MAX_GSI_NUM) {
 			if (gsi > 15)
 				gsi = pci_irq++;
-#ifdef CONFIG_ACPI_BUS
 			/*
 			 * Don't assign IRQ used by ACPI SCI
 			 */
 			if (gsi == acpi_fadt.sci_int)
 				gsi = pci_irq++;
-#endif
 			gsi_to_irq[irq] = gsi;
 		} else {
 			printk(KERN_ERR "GSI %u is too high\n", gsi);
@@ -1153,5 +1147,5 @@ int mp_register_gsi (u32 gsi, int edge_level, int active_high_low)
 	return gsi;
 }
 
-#endif /*CONFIG_X86_IO_APIC && (CONFIG_ACPI_INTERPRETER || CONFIG_ACPI_BOOT)*/
-#endif /*CONFIG_ACPI_BOOT*/
+#endif /* CONFIG_X86_IO_APIC */
+#endif /* CONFIG_ACPI */
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index e29fd5aeaf8e..a659d274914c 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -87,14 +87,14 @@ EXPORT_SYMBOL(boot_cpu_data);
 
 unsigned long mmu_cr4_features;
 
-#ifdef	CONFIG_ACPI_INTERPRETER
+#ifdef	CONFIG_ACPI
 	int acpi_disabled = 0;
 #else
 	int acpi_disabled = 1;
 #endif
 EXPORT_SYMBOL(acpi_disabled);
 
-#ifdef	CONFIG_ACPI_BOOT
+#ifdef	CONFIG_ACPI
 int __initdata acpi_force = 0;
 extern acpi_interrupt_flags	acpi_sci_flags;
 #endif
@@ -798,7 +798,7 @@ static void __init parse_cmdline_early (char ** cmdline_p)
 		}
 #endif
 
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
 		/* "acpi=off" disables both ACPI table parsing and interpreter */
 		else if (!memcmp(from, "acpi=off", 8)) {
 			disable_acpi();
@@ -854,7 +854,7 @@ static void __init parse_cmdline_early (char ** cmdline_p)
 		else if (!memcmp(from, "noapic", 6))
 			disable_ioapic_setup();
 #endif /* CONFIG_X86_LOCAL_APIC */
-#endif /* CONFIG_ACPI_BOOT */
+#endif /* CONFIG_ACPI */
 
 #ifdef CONFIG_X86_LOCAL_APIC
 		/* enable local APIC */
@@ -1579,7 +1579,7 @@ void __init setup_arch(char **cmdline_p)
 	if (efi_enabled)
 		efi_map_memmap();
 
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
 	/*
 	 * Parse the ACPI tables for possible boot-time SMP configuration.
 	 */
diff --git a/arch/i386/mach-es7000/es7000plat.c b/arch/i386/mach-es7000/es7000plat.c
index 2000bdca2fc2..dc6660511b07 100644
--- a/arch/i386/mach-es7000/es7000plat.c
+++ b/arch/i386/mach-es7000/es7000plat.c
@@ -51,7 +51,7 @@ struct mip_reg		*host_reg;
 int 			mip_port;
 unsigned long		mip_addr, host_addr;
 
-#if defined(CONFIG_X86_IO_APIC) && (defined(CONFIG_ACPI_INTERPRETER) || defined(CONFIG_ACPI_BOOT))
+#if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_ACPI)
 
 /*
  * GSI override for ES7000 platforms.
@@ -73,7 +73,7 @@ es7000_rename_gsi(int ioapic, int gsi)
 	return gsi;
 }
 
-#endif // (CONFIG_X86_IO_APIC) && (CONFIG_ACPI_INTERPRETER || CONFIG_ACPI_BOOT)
+#endif	/* (CONFIG_X86_IO_APIC) && (CONFIG_ACPI) */
 
 void __init
 setup_unisys ()
diff --git a/arch/i386/pci/Makefile b/arch/i386/pci/Makefile
index 1bff03f36965..ead6122dd06d 100644
--- a/arch/i386/pci/Makefile
+++ b/arch/i386/pci/Makefile
@@ -5,7 +5,7 @@ obj-$(CONFIG_PCI_MMCONFIG)	+= mmconfig.o
 obj-$(CONFIG_PCI_DIRECT)	+= direct.o
 
 pci-y				:= fixup.o
-pci-$(CONFIG_ACPI_PCI)		+= acpi.o
+pci-$(CONFIG_ACPI)		+= acpi.o
 pci-y				+= legacy.o irq.o
 
 pci-$(CONFIG_X86_VISWS)		:= visws.o fixup.o
diff --git a/arch/i386/pci/irq.c b/arch/i386/pci/irq.c
index 86348b68fda1..326a2edc3834 100644
--- a/arch/i386/pci/irq.c
+++ b/arch/i386/pci/irq.c
@@ -1075,7 +1075,7 @@ static void pirq_penalize_isa_irq(int irq, int active)
 
 void pcibios_penalize_isa_irq(int irq, int active)
 {
-#ifdef CONFIG_ACPI_PCI
+#ifdef CONFIG_ACPI
 	if (!acpi_noirq)
 		acpi_penalize_isa_irq(irq, active);
 	else
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 17b5dbf8c311..00151a8320d8 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -60,6 +60,7 @@ choice
 
 config IA64_GENERIC
 	bool "generic"
+	select ACPI
 	select NUMA
 	select ACPI_NUMA
 	select VIRTUAL_MEM_MAP
@@ -340,6 +341,7 @@ config IA64_PALINFO
 
 config ACPI_DEALLOCATE_IRQ
 	bool
+	depends on ACPI
 	depends on IOSAPIC && EXPERIMENTAL
 	default y
 
@@ -351,38 +353,10 @@ endmenu
 
 menu "Power management and ACPI"
 
-config PM
-	bool "Power Management support"
-	depends on !IA64_HP_SIM
-	default y
-	help
-	  "Power Management" means that parts of your computer are shut
-	  off or put into a power conserving "sleep" mode if they are not
-	  being used.  There are two competing standards for doing this: APM
-	  and ACPI.  If you want to use either one, say Y here and then also
-	  to the requisite support below.
-
-	  Power Management is most important for battery powered laptop
-	  computers; if you have a laptop, check out the Linux Laptop home
-	  page on the WWW at <http://www.linux-on-laptops.com/> and the
-	  Battery Powered Linux mini-HOWTO, available from
-	  <http://www.tldp.org/docs.html#howto>.
-
-	  Note that, even if you say N here, Linux on the x86 architecture
-	  will issue the hlt instruction if nothing is to be done, thereby
-	  sending the processor to sleep and saving power.
-
-config ACPI
-	bool
-	depends on !IA64_HP_SIM
-	default y
-
-if !IA64_HP_SIM
+source "kernel/power/Kconfig"
 
 source "drivers/acpi/Kconfig"
 
-endif
-
 if PM
 
 source "arch/ia64/kernel/cpufreq/Kconfig"
diff --git a/arch/ia64/configs/bigsur_defconfig b/arch/ia64/configs/bigsur_defconfig
index b95fcf86ea00..3b65cbb31b1d 100644
--- a/arch/ia64/configs/bigsur_defconfig
+++ b/arch/ia64/configs/bigsur_defconfig
@@ -107,18 +107,12 @@ CONFIG_ACPI=y
 #
 # ACPI (Advanced Configuration and Power Interface) Support
 #
-CONFIG_ACPI_BOOT=y
-CONFIG_ACPI_INTERPRETER=y
 CONFIG_ACPI_BUTTON=m
-CONFIG_ACPI_VIDEO=m
 CONFIG_ACPI_FAN=m
 CONFIG_ACPI_PROCESSOR=m
 CONFIG_ACPI_THERMAL=m
-CONFIG_ACPI_BLACKLIST_YEAR=0
 # CONFIG_ACPI_DEBUG is not set
-CONFIG_ACPI_BUS=y
 CONFIG_ACPI_POWER=y
-CONFIG_ACPI_PCI=y
 CONFIG_ACPI_SYSTEM=y
 
 #
diff --git a/arch/ia64/configs/sn2_defconfig b/arch/ia64/configs/sn2_defconfig
index dccf35c60b94..1ca6e6e11b42 100644
--- a/arch/ia64/configs/sn2_defconfig
+++ b/arch/ia64/configs/sn2_defconfig
@@ -130,19 +130,12 @@ CONFIG_ACPI=y
 #
 # ACPI (Advanced Configuration and Power Interface) Support
 #
-CONFIG_ACPI_BOOT=y
-CONFIG_ACPI_INTERPRETER=y
 # CONFIG_ACPI_BUTTON is not set
-CONFIG_ACPI_VIDEO=m
-CONFIG_ACPI_HOTKEY=m
 # CONFIG_ACPI_FAN is not set
 # CONFIG_ACPI_PROCESSOR is not set
 CONFIG_ACPI_NUMA=y
-CONFIG_ACPI_BLACKLIST_YEAR=0
 # CONFIG_ACPI_DEBUG is not set
-CONFIG_ACPI_BUS=y
 CONFIG_ACPI_POWER=y
-CONFIG_ACPI_PCI=y
 CONFIG_ACPI_SYSTEM=y
 # CONFIG_ACPI_CONTAINER is not set
 
diff --git a/arch/ia64/configs/tiger_defconfig b/arch/ia64/configs/tiger_defconfig
index c853cfcd2d11..3ec94a12eac0 100644
--- a/arch/ia64/configs/tiger_defconfig
+++ b/arch/ia64/configs/tiger_defconfig
@@ -128,20 +128,13 @@ CONFIG_ACPI=y
 #
 # ACPI (Advanced Configuration and Power Interface) Support
 #
-CONFIG_ACPI_BOOT=y
-CONFIG_ACPI_INTERPRETER=y
 CONFIG_ACPI_BUTTON=m
-# CONFIG_ACPI_VIDEO is not set
-# CONFIG_ACPI_HOTKEY is not set
 CONFIG_ACPI_FAN=m
 CONFIG_ACPI_PROCESSOR=m
 # CONFIG_ACPI_HOTPLUG_CPU is not set
 CONFIG_ACPI_THERMAL=m
-CONFIG_ACPI_BLACKLIST_YEAR=0
 # CONFIG_ACPI_DEBUG is not set
-CONFIG_ACPI_BUS=y
 CONFIG_ACPI_POWER=y
-CONFIG_ACPI_PCI=y
 CONFIG_ACPI_SYSTEM=y
 # CONFIG_ACPI_CONTAINER is not set
 
diff --git a/arch/ia64/configs/zx1_defconfig b/arch/ia64/configs/zx1_defconfig
index 88e8867fa8e8..d4cf73d124bc 100644
--- a/arch/ia64/configs/zx1_defconfig
+++ b/arch/ia64/configs/zx1_defconfig
@@ -128,19 +128,12 @@ CONFIG_ACPI=y
 #
 # ACPI (Advanced Configuration and Power Interface) Support
 #
-CONFIG_ACPI_BOOT=y
-CONFIG_ACPI_INTERPRETER=y
 CONFIG_ACPI_BUTTON=y
-CONFIG_ACPI_VIDEO=m
-CONFIG_ACPI_HOTKEY=m
 CONFIG_ACPI_FAN=y
 CONFIG_ACPI_PROCESSOR=y
 CONFIG_ACPI_THERMAL=y
-CONFIG_ACPI_BLACKLIST_YEAR=0
 # CONFIG_ACPI_DEBUG is not set
-CONFIG_ACPI_BUS=y
 CONFIG_ACPI_POWER=y
-CONFIG_ACPI_PCI=y
 CONFIG_ACPI_SYSTEM=y
 # CONFIG_ACPI_CONTAINER is not set
 
diff --git a/arch/ia64/defconfig b/arch/ia64/defconfig
index 8444add76380..b6ec8d32c346 100644
--- a/arch/ia64/defconfig
+++ b/arch/ia64/defconfig
@@ -118,20 +118,14 @@ CONFIG_ACPI=y
 #
 # ACPI (Advanced Configuration and Power Interface) Support
 #
-CONFIG_ACPI_BOOT=y
-CONFIG_ACPI_INTERPRETER=y
 CONFIG_ACPI_BUTTON=m
-CONFIG_ACPI_VIDEO=m
 CONFIG_ACPI_FAN=m
 CONFIG_ACPI_PROCESSOR=m
 CONFIG_ACPI_HOTPLUG_CPU=y
 CONFIG_ACPI_THERMAL=m
 CONFIG_ACPI_NUMA=y
-CONFIG_ACPI_BLACKLIST_YEAR=0
 # CONFIG_ACPI_DEBUG is not set
-CONFIG_ACPI_BUS=y
 CONFIG_ACPI_POWER=y
-CONFIG_ACPI_PCI=y
 CONFIG_ACPI_SYSTEM=y
 CONFIG_ACPI_CONTAINER=m
 
diff --git a/arch/ia64/kernel/acpi-ext.c b/arch/ia64/kernel/acpi-ext.c
index 2623df5e2633..13a5b3b49bf8 100644
--- a/arch/ia64/kernel/acpi-ext.c
+++ b/arch/ia64/kernel/acpi-ext.c
@@ -17,20 +17,20 @@
 #include <asm/acpi-ext.h>
 
 struct acpi_vendor_descriptor {
-	u8				guid_id;
-	efi_guid_t			guid;
+	u8 guid_id;
+	efi_guid_t guid;
 };
 
 struct acpi_vendor_info {
-	struct acpi_vendor_descriptor	*descriptor;
-	u8				*data;
-	u32				length;
+	struct acpi_vendor_descriptor *descriptor;
+	u8 *data;
+	u32 length;
 };
 
 acpi_status
 acpi_vendor_resource_match(struct acpi_resource *resource, void *context)
 {
-	struct acpi_vendor_info *info = (struct acpi_vendor_info *) context;
+	struct acpi_vendor_info *info = (struct acpi_vendor_info *)context;
 	struct acpi_resource_vendor *vendor;
 	struct acpi_vendor_descriptor *descriptor;
 	u32 length;
@@ -38,8 +38,8 @@ acpi_vendor_resource_match(struct acpi_resource *resource, void *context)
 	if (resource->id != ACPI_RSTYPE_VENDOR)
 		return AE_OK;
 
-	vendor = (struct acpi_resource_vendor *) &resource->data;
-	descriptor = (struct acpi_vendor_descriptor *) vendor->reserved;
+	vendor = (struct acpi_resource_vendor *)&resource->data;
+	descriptor = (struct acpi_vendor_descriptor *)vendor->reserved;
 	if (vendor->length <= sizeof(*info->descriptor) ||
 	    descriptor->guid_id != info->descriptor->guid_id ||
 	    efi_guidcmp(descriptor->guid, info->descriptor->guid))
@@ -50,21 +50,24 @@ acpi_vendor_resource_match(struct acpi_resource *resource, void *context)
 	if (!info->data)
 		return AE_NO_MEMORY;
 
-	memcpy(info->data, vendor->reserved + sizeof(struct acpi_vendor_descriptor), length);
+	memcpy(info->data,
+	       vendor->reserved + sizeof(struct acpi_vendor_descriptor),
+	       length);
 	info->length = length;
 	return AE_CTRL_TERMINATE;
 }
 
 acpi_status
-acpi_find_vendor_resource(acpi_handle obj, struct acpi_vendor_descriptor *id,
-		u8 **data, u32 *length)
+acpi_find_vendor_resource(acpi_handle obj, struct acpi_vendor_descriptor * id,
+			  u8 ** data, u32 * length)
 {
 	struct acpi_vendor_info info;
 
 	info.descriptor = id;
 	info.data = NULL;
 
-	acpi_walk_resources(obj, METHOD_NAME__CRS, acpi_vendor_resource_match, &info);
+	acpi_walk_resources(obj, METHOD_NAME__CRS, acpi_vendor_resource_match,
+			    &info);
 	if (!info.data)
 		return AE_NOT_FOUND;
 
@@ -75,17 +78,19 @@ acpi_find_vendor_resource(acpi_handle obj, struct acpi_vendor_descriptor *id,
 
 struct acpi_vendor_descriptor hp_ccsr_descriptor = {
 	.guid_id = 2,
-	.guid    = EFI_GUID(0x69e9adf9, 0x924f, 0xab5f, 0xf6, 0x4a, 0x24, 0xd2, 0x01, 0x37, 0x0e, 0xad)
+	.guid =
+	    EFI_GUID(0x69e9adf9, 0x924f, 0xab5f, 0xf6, 0x4a, 0x24, 0xd2, 0x01,
+		     0x37, 0x0e, 0xad)
 };
 
-acpi_status
-hp_acpi_csr_space(acpi_handle obj, u64 *csr_base, u64 *csr_length)
+acpi_status hp_acpi_csr_space(acpi_handle obj, u64 * csr_base, u64 * csr_length)
 {
 	acpi_status status;
 	u8 *data;
 	u32 length;
 
-	status = acpi_find_vendor_resource(obj, &hp_ccsr_descriptor, &data, &length);
+	status =
+	    acpi_find_vendor_resource(obj, &hp_ccsr_descriptor, &data, &length);
 
 	if (ACPI_FAILURE(status) || length != 16)
 		return AE_NOT_FOUND;
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 9609f243e5d0..318787c84ac0 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -74,12 +74,11 @@ unsigned int acpi_cpei_override;
 unsigned int acpi_cpei_phys_cpuid;
 
 #define MAX_SAPICS 256
-u16 ia64_acpiid_to_sapicid[MAX_SAPICS] =
-	{ [0 ... MAX_SAPICS - 1] = -1 };
+u16 ia64_acpiid_to_sapicid[MAX_SAPICS] = {[0 ... MAX_SAPICS - 1] = -1 };
+
 EXPORT_SYMBOL(ia64_acpiid_to_sapicid);
 
-const char *
-acpi_get_sysname (void)
+const char *acpi_get_sysname(void)
 {
 #ifdef CONFIG_IA64_GENERIC
 	unsigned long rsdp_phys;
@@ -89,27 +88,29 @@ acpi_get_sysname (void)
 
 	rsdp_phys = acpi_find_rsdp();
 	if (!rsdp_phys) {
-		printk(KERN_ERR "ACPI 2.0 RSDP not found, default to \"dig\"\n");
+		printk(KERN_ERR
+		       "ACPI 2.0 RSDP not found, default to \"dig\"\n");
 		return "dig";
 	}
 
-	rsdp = (struct acpi20_table_rsdp *) __va(rsdp_phys);
+	rsdp = (struct acpi20_table_rsdp *)__va(rsdp_phys);
 	if (strncmp(rsdp->signature, RSDP_SIG, sizeof(RSDP_SIG) - 1)) {
-		printk(KERN_ERR "ACPI 2.0 RSDP signature incorrect, default to \"dig\"\n");
+		printk(KERN_ERR
+		       "ACPI 2.0 RSDP signature incorrect, default to \"dig\"\n");
 		return "dig";
 	}
 
-	xsdt = (struct acpi_table_xsdt *) __va(rsdp->xsdt_address);
+	xsdt = (struct acpi_table_xsdt *)__va(rsdp->xsdt_address);
 	hdr = &xsdt->header;
 	if (strncmp(hdr->signature, XSDT_SIG, sizeof(XSDT_SIG) - 1)) {
-		printk(KERN_ERR "ACPI 2.0 XSDT signature incorrect, default to \"dig\"\n");
+		printk(KERN_ERR
+		       "ACPI 2.0 XSDT signature incorrect, default to \"dig\"\n");
 		return "dig";
 	}
 
 	if (!strcmp(hdr->oem_id, "HP")) {
 		return "hpzx1";
-	}
-	else if (!strcmp(hdr->oem_id, "SGI")) {
+	} else if (!strcmp(hdr->oem_id, "SGI")) {
 		return "sn2";
 	}
 
@@ -131,7 +132,7 @@ acpi_get_sysname (void)
 #endif
 }
 
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
 
 #define ACPI_MAX_PLATFORM_INTERRUPTS	256
 
@@ -146,8 +147,7 @@ enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_IOSAPIC;
  * Interrupt routing API for device drivers.  Provides interrupt vector for
  * a generic platform event.  Currently only CPEI is implemented.
  */
-int
-acpi_request_vector (u32 int_type)
+int acpi_request_vector(u32 int_type)
 {
 	int vector = -1;
 
@@ -155,12 +155,12 @@ acpi_request_vector (u32 int_type)
 		/* corrected platform error interrupt */
 		vector = platform_intr_list[int_type];
 	} else
-		printk(KERN_ERR "acpi_request_vector(): invalid interrupt type\n");
+		printk(KERN_ERR
+		       "acpi_request_vector(): invalid interrupt type\n");
 	return vector;
 }
 
-char *
-__acpi_map_table (unsigned long phys_addr, unsigned long size)
+char *__acpi_map_table(unsigned long phys_addr, unsigned long size)
 {
 	return __va(phys_addr);
 }
@@ -169,19 +169,18 @@ __acpi_map_table (unsigned long phys_addr, unsigned long size)
                             Boot-time Table Parsing
    -------------------------------------------------------------------------- */
 
-static int			total_cpus __initdata;
-static int			available_cpus __initdata;
-struct acpi_table_madt *	acpi_madt __initdata;
-static u8			has_8259;
-
+static int total_cpus __initdata;
+static int available_cpus __initdata;
+struct acpi_table_madt *acpi_madt __initdata;
+static u8 has_8259;
 
 static int __init
-acpi_parse_lapic_addr_ovr (
-	acpi_table_entry_header *header, const unsigned long end)
+acpi_parse_lapic_addr_ovr(acpi_table_entry_header * header,
+			  const unsigned long end)
 {
 	struct acpi_table_lapic_addr_ovr *lapic;
 
-	lapic = (struct acpi_table_lapic_addr_ovr *) header;
+	lapic = (struct acpi_table_lapic_addr_ovr *)header;
 
 	if (BAD_MADT_ENTRY(lapic, end))
 		return -EINVAL;
@@ -193,22 +192,23 @@ acpi_parse_lapic_addr_ovr (
 	return 0;
 }
 
-
 static int __init
-acpi_parse_lsapic (acpi_table_entry_header *header, const unsigned long end)
+acpi_parse_lsapic(acpi_table_entry_header * header, const unsigned long end)
 {
 	struct acpi_table_lsapic *lsapic;
 
-	lsapic = (struct acpi_table_lsapic *) header;
+	lsapic = (struct acpi_table_lsapic *)header;
 
 	if (BAD_MADT_ENTRY(lsapic, end))
 		return -EINVAL;
 
 	if (lsapic->flags.enabled) {
 #ifdef CONFIG_SMP
-		smp_boot_data.cpu_phys_id[available_cpus] = (lsapic->id << 8) | lsapic->eid;
+		smp_boot_data.cpu_phys_id[available_cpus] =
+		    (lsapic->id << 8) | lsapic->eid;
 #endif
-		ia64_acpiid_to_sapicid[lsapic->acpi_id] = (lsapic->id << 8) | lsapic->eid;
+		ia64_acpiid_to_sapicid[lsapic->acpi_id] =
+		    (lsapic->id << 8) | lsapic->eid;
 		++available_cpus;
 	}
 
@@ -216,13 +216,12 @@ acpi_parse_lsapic (acpi_table_entry_header *header, const unsigned long end)
 	return 0;
 }
 
-
 static int __init
-acpi_parse_lapic_nmi (acpi_table_entry_header *header, const unsigned long end)
+acpi_parse_lapic_nmi(acpi_table_entry_header * header, const unsigned long end)
 {
 	struct acpi_table_lapic_nmi *lacpi_nmi;
 
-	lacpi_nmi = (struct acpi_table_lapic_nmi*) header;
+	lacpi_nmi = (struct acpi_table_lapic_nmi *)header;
 
 	if (BAD_MADT_ENTRY(lacpi_nmi, end))
 		return -EINVAL;
@@ -231,13 +230,12 @@ acpi_parse_lapic_nmi (acpi_table_entry_header *header, const unsigned long end)
 	return 0;
 }
 
-
 static int __init
-acpi_parse_iosapic (acpi_table_entry_header *header, const unsigned long end)
+acpi_parse_iosapic(acpi_table_entry_header * header, const unsigned long end)
 {
 	struct acpi_table_iosapic *iosapic;
 
-	iosapic = (struct acpi_table_iosapic *) header;
+	iosapic = (struct acpi_table_iosapic *)header;
 
 	if (BAD_MADT_ENTRY(iosapic, end))
 		return -EINVAL;
@@ -245,15 +243,14 @@ acpi_parse_iosapic (acpi_table_entry_header *header, const unsigned long end)
 	return iosapic_init(iosapic->address, iosapic->global_irq_base);
 }
 
-
 static int __init
-acpi_parse_plat_int_src (
-	acpi_table_entry_header *header, const unsigned long end)
+acpi_parse_plat_int_src(acpi_table_entry_header * header,
+			const unsigned long end)
 {
 	struct acpi_table_plat_int_src *plintsrc;
 	int vector;
 
-	plintsrc = (struct acpi_table_plat_int_src *) header;
+	plintsrc = (struct acpi_table_plat_int_src *)header;
 
 	if (BAD_MADT_ENTRY(plintsrc, end))
 		return -EINVAL;
@@ -267,8 +264,12 @@ acpi_parse_plat_int_src (
 						plintsrc->iosapic_vector,
 						plintsrc->eid,
 						plintsrc->id,
-						(plintsrc->flags.polarity == 1) ? IOSAPIC_POL_HIGH : IOSAPIC_POL_LOW,
-						(plintsrc->flags.trigger == 1) ? IOSAPIC_EDGE : IOSAPIC_LEVEL);
+						(plintsrc->flags.polarity ==
+						 1) ? IOSAPIC_POL_HIGH :
+						IOSAPIC_POL_LOW,
+						(plintsrc->flags.trigger ==
+						 1) ? IOSAPIC_EDGE :
+						IOSAPIC_LEVEL);
 
 	platform_intr_list[plintsrc->type] = vector;
 	if (acpi_madt_rev > 1) {
@@ -283,7 +284,6 @@ acpi_parse_plat_int_src (
 	return 0;
 }
 
-
 unsigned int can_cpei_retarget(void)
 {
 	extern int cpe_vector;
@@ -322,29 +322,30 @@ unsigned int get_cpei_target_cpu(void)
 }
 
 static int __init
-acpi_parse_int_src_ovr (
-	acpi_table_entry_header *header, const unsigned long end)
+acpi_parse_int_src_ovr(acpi_table_entry_header * header,
+		       const unsigned long end)
 {
 	struct acpi_table_int_src_ovr *p;
 
-	p = (struct acpi_table_int_src_ovr *) header;
+	p = (struct acpi_table_int_src_ovr *)header;
 
 	if (BAD_MADT_ENTRY(p, end))
 		return -EINVAL;
 
 	iosapic_override_isa_irq(p->bus_irq, p->global_irq,
-				 (p->flags.polarity == 1) ? IOSAPIC_POL_HIGH : IOSAPIC_POL_LOW,
-				 (p->flags.trigger == 1) ? IOSAPIC_EDGE : IOSAPIC_LEVEL);
+				 (p->flags.polarity ==
+				  1) ? IOSAPIC_POL_HIGH : IOSAPIC_POL_LOW,
+				 (p->flags.trigger ==
+				  1) ? IOSAPIC_EDGE : IOSAPIC_LEVEL);
 	return 0;
 }
 
-
 static int __init
-acpi_parse_nmi_src (acpi_table_entry_header *header, const unsigned long end)
+acpi_parse_nmi_src(acpi_table_entry_header * header, const unsigned long end)
 {
 	struct acpi_table_nmi_src *nmi_src;
 
-	nmi_src = (struct acpi_table_nmi_src*) header;
+	nmi_src = (struct acpi_table_nmi_src *)header;
 
 	if (BAD_MADT_ENTRY(nmi_src, end))
 		return -EINVAL;
@@ -353,11 +354,9 @@ acpi_parse_nmi_src (acpi_table_entry_header *header, const unsigned long end)
 	return 0;
 }
 
-static void __init
-acpi_madt_oem_check (char *oem_id, char *oem_table_id)
+static void __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
 {
-	if (!strncmp(oem_id, "IBM", 3) &&
-	    (!strncmp(oem_table_id, "SERMOW", 6))) {
+	if (!strncmp(oem_id, "IBM", 3) && (!strncmp(oem_table_id, "SERMOW", 6))) {
 
 		/*
 		 * Unfortunately ITC_DRIFT is not yet part of the
@@ -370,19 +369,18 @@ acpi_madt_oem_check (char *oem_id, char *oem_table_id)
 	}
 }
 
-static int __init
-acpi_parse_madt (unsigned long phys_addr, unsigned long size)
+static int __init acpi_parse_madt(unsigned long phys_addr, unsigned long size)
 {
 	if (!phys_addr || !size)
 		return -EINVAL;
 
-	acpi_madt = (struct acpi_table_madt *) __va(phys_addr);
+	acpi_madt = (struct acpi_table_madt *)__va(phys_addr);
 
 	acpi_madt_rev = acpi_madt->header.revision;
 
 	/* remember the value for reference after free_initmem() */
 #ifdef CONFIG_ITANIUM
-	has_8259 = 1; /* Firmware on old Itanium systems is broken */
+	has_8259 = 1;		/* Firmware on old Itanium systems is broken */
 #else
 	has_8259 = acpi_madt->flags.pcat_compat;
 #endif
@@ -396,19 +394,18 @@ acpi_parse_madt (unsigned long phys_addr, unsigned long size)
 	printk(KERN_INFO PREFIX "Local APIC address %p\n", ipi_base_addr);
 
 	acpi_madt_oem_check(acpi_madt->header.oem_id,
-		acpi_madt->header.oem_table_id);
+			    acpi_madt->header.oem_table_id);
 
 	return 0;
 }
 
-
 #ifdef CONFIG_ACPI_NUMA
 
 #undef SLIT_DEBUG
 
 #define PXM_FLAG_LEN ((MAX_PXM_DOMAINS + 1)/32)
 
-static int __initdata srat_num_cpus;			/* number of cpus */
+static int __initdata srat_num_cpus;	/* number of cpus */
 static u32 __devinitdata pxm_flag[PXM_FLAG_LEN];
 #define pxm_bit_set(bit)	(set_bit(bit,(void *)pxm_flag))
 #define pxm_bit_test(bit)	(test_bit(bit,(void *)pxm_flag))
@@ -421,15 +418,15 @@ static struct acpi_table_slit __initdata *slit_table;
  * ACPI 2.0 SLIT (System Locality Information Table)
  * http://devresource.hp.com/devresource/Docs/TechPapers/IA64/slit.pdf
  */
-void __init
-acpi_numa_slit_init (struct acpi_table_slit *slit)
+void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
 {
 	u32 len;
 
 	len = sizeof(struct acpi_table_header) + 8
-		+ slit->localities * slit->localities;
+	    + slit->localities * slit->localities;
 	if (slit->header.length != len) {
-		printk(KERN_ERR "ACPI 2.0 SLIT: size mismatch: %d expected, %d actual\n",
+		printk(KERN_ERR
+		       "ACPI 2.0 SLIT: size mismatch: %d expected, %d actual\n",
 		       len, slit->header.length);
 		memset(numa_slit, 10, sizeof(numa_slit));
 		return;
@@ -438,19 +435,20 @@ acpi_numa_slit_init (struct acpi_table_slit *slit)
 }
 
 void __init
-acpi_numa_processor_affinity_init (struct acpi_table_processor_affinity *pa)
+acpi_numa_processor_affinity_init(struct acpi_table_processor_affinity *pa)
 {
 	/* record this node in proximity bitmap */
 	pxm_bit_set(pa->proximity_domain);
 
-	node_cpuid[srat_num_cpus].phys_id = (pa->apic_id << 8) | (pa->lsapic_eid);
+	node_cpuid[srat_num_cpus].phys_id =
+	    (pa->apic_id << 8) | (pa->lsapic_eid);
 	/* nid should be overridden as logical node id later */
 	node_cpuid[srat_num_cpus].nid = pa->proximity_domain;
 	srat_num_cpus++;
 }
 
 void __init
-acpi_numa_memory_affinity_init (struct acpi_table_memory_affinity *ma)
+acpi_numa_memory_affinity_init(struct acpi_table_memory_affinity *ma)
 {
 	unsigned long paddr, size;
 	u8 pxm;
@@ -487,8 +485,7 @@ acpi_numa_memory_affinity_init (struct acpi_table_memory_affinity *ma)
 	num_node_memblks++;
 }
 
-void __init
-acpi_numa_arch_fixup (void)
+void __init acpi_numa_arch_fixup(void)
 {
 	int i, j, node_from, node_to;
 
@@ -534,21 +531,24 @@ acpi_numa_arch_fixup (void)
 	for (i = 0; i < srat_num_cpus; i++)
 		node_cpuid[i].nid = pxm_to_nid_map[node_cpuid[i].nid];
 
-	printk(KERN_INFO "Number of logical nodes in system = %d\n", num_online_nodes());
-	printk(KERN_INFO "Number of memory chunks in system = %d\n", num_node_memblks);
+	printk(KERN_INFO "Number of logical nodes in system = %d\n",
+	       num_online_nodes());
+	printk(KERN_INFO "Number of memory chunks in system = %d\n",
+	       num_node_memblks);
 
-	if (!slit_table) return;
+	if (!slit_table)
+		return;
 	memset(numa_slit, -1, sizeof(numa_slit));
-	for (i=0; i<slit_table->localities; i++) {
+	for (i = 0; i < slit_table->localities; i++) {
 		if (!pxm_bit_test(i))
 			continue;
 		node_from = pxm_to_nid_map[i];
-		for (j=0; j<slit_table->localities; j++) {
+		for (j = 0; j < slit_table->localities; j++) {
 			if (!pxm_bit_test(j))
 				continue;
 			node_to = pxm_to_nid_map[j];
 			node_distance(node_from, node_to) =
-				slit_table->entry[i*slit_table->localities + j];
+			    slit_table->entry[i * slit_table->localities + j];
 		}
 	}
 
@@ -556,36 +556,43 @@ acpi_numa_arch_fixup (void)
 	printk("ACPI 2.0 SLIT locality table:\n");
 	for_each_online_node(i) {
 		for_each_online_node(j)
-			printk("%03d ", node_distance(i,j));
+		    printk("%03d ", node_distance(i, j));
 		printk("\n");
 	}
 #endif
 }
-#endif /* CONFIG_ACPI_NUMA */
+#endif				/* CONFIG_ACPI_NUMA */
 
-unsigned int
-acpi_register_gsi (u32 gsi, int edge_level, int active_high_low)
+/*
+ * success: return IRQ number (>=0)
+ * failure: return < 0
+ */
+int acpi_register_gsi(u32 gsi, int edge_level, int active_high_low)
 {
 	if (has_8259 && gsi < 16)
 		return isa_irq_to_vector(gsi);
 
 	return iosapic_register_intr(gsi,
-			(active_high_low == ACPI_ACTIVE_HIGH) ? IOSAPIC_POL_HIGH : IOSAPIC_POL_LOW,
-			(edge_level == ACPI_EDGE_SENSITIVE) ? IOSAPIC_EDGE : IOSAPIC_LEVEL);
+				     (active_high_low ==
+				      ACPI_ACTIVE_HIGH) ? IOSAPIC_POL_HIGH :
+				     IOSAPIC_POL_LOW,
+				     (edge_level ==
+				      ACPI_EDGE_SENSITIVE) ? IOSAPIC_EDGE :
+				     IOSAPIC_LEVEL);
 }
+
 EXPORT_SYMBOL(acpi_register_gsi);
 
 #ifdef CONFIG_ACPI_DEALLOCATE_IRQ
-void
-acpi_unregister_gsi (u32 gsi)
+void acpi_unregister_gsi(u32 gsi)
 {
 	iosapic_unregister_intr(gsi);
 }
+
 EXPORT_SYMBOL(acpi_unregister_gsi);
-#endif /* CONFIG_ACPI_DEALLOCATE_IRQ */
+#endif				/* CONFIG_ACPI_DEALLOCATE_IRQ */
 
-static int __init
-acpi_parse_fadt (unsigned long phys_addr, unsigned long size)
+static int __init acpi_parse_fadt(unsigned long phys_addr, unsigned long size)
 {
 	struct acpi_table_header *fadt_header;
 	struct fadt_descriptor_rev2 *fadt;
@@ -593,11 +600,11 @@ acpi_parse_fadt (unsigned long phys_addr, unsigned long size)
 	if (!phys_addr || !size)
 		return -EINVAL;
 
-	fadt_header = (struct acpi_table_header *) __va(phys_addr);
+	fadt_header = (struct acpi_table_header *)__va(phys_addr);
 	if (fadt_header->revision != 3)
-		return -ENODEV;		/* Only deal with ACPI 2.0 FADT */
+		return -ENODEV;	/* Only deal with ACPI 2.0 FADT */
 
-	fadt = (struct fadt_descriptor_rev2 *) fadt_header;
+	fadt = (struct fadt_descriptor_rev2 *)fadt_header;
 
 	if (!(fadt->iapc_boot_arch & BAF_8042_KEYBOARD_CONTROLLER))
 		acpi_kbd_controller_present = 0;
@@ -609,22 +616,19 @@ acpi_parse_fadt (unsigned long phys_addr, unsigned long size)
 	return 0;
 }
 
-
-unsigned long __init
-acpi_find_rsdp (void)
+unsigned long __init acpi_find_rsdp(void)
 {
 	unsigned long rsdp_phys = 0;
 
 	if (efi.acpi20)
 		rsdp_phys = __pa(efi.acpi20);
 	else if (efi.acpi)
-		printk(KERN_WARNING PREFIX "v1.0/r0.71 tables no longer supported\n");
+		printk(KERN_WARNING PREFIX
+		       "v1.0/r0.71 tables no longer supported\n");
 	return rsdp_phys;
 }
 
-
-int __init
-acpi_boot_init (void)
+int __init acpi_boot_init(void)
 {
 
 	/*
@@ -642,31 +646,43 @@ acpi_boot_init (void)
 
 	/* Local APIC */
 
-	if (acpi_table_parse_madt(ACPI_MADT_LAPIC_ADDR_OVR, acpi_parse_lapic_addr_ovr, 0) < 0)
-		printk(KERN_ERR PREFIX "Error parsing LAPIC address override entry\n");
+	if (acpi_table_parse_madt
+	    (ACPI_MADT_LAPIC_ADDR_OVR, acpi_parse_lapic_addr_ovr, 0) < 0)
+		printk(KERN_ERR PREFIX
+		       "Error parsing LAPIC address override entry\n");
 
-	if (acpi_table_parse_madt(ACPI_MADT_LSAPIC, acpi_parse_lsapic, NR_CPUS) < 1)
-		printk(KERN_ERR PREFIX "Error parsing MADT - no LAPIC entries\n");
+	if (acpi_table_parse_madt(ACPI_MADT_LSAPIC, acpi_parse_lsapic, NR_CPUS)
+	    < 1)
+		printk(KERN_ERR PREFIX
+		       "Error parsing MADT - no LAPIC entries\n");
 
-	if (acpi_table_parse_madt(ACPI_MADT_LAPIC_NMI, acpi_parse_lapic_nmi, 0) < 0)
+	if (acpi_table_parse_madt(ACPI_MADT_LAPIC_NMI, acpi_parse_lapic_nmi, 0)
+	    < 0)
 		printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n");
 
 	/* I/O APIC */
 
-	if (acpi_table_parse_madt(ACPI_MADT_IOSAPIC, acpi_parse_iosapic, NR_IOSAPICS) < 1)
-		printk(KERN_ERR PREFIX "Error parsing MADT - no IOSAPIC entries\n");
+	if (acpi_table_parse_madt
+	    (ACPI_MADT_IOSAPIC, acpi_parse_iosapic, NR_IOSAPICS) < 1)
+		printk(KERN_ERR PREFIX
+		       "Error parsing MADT - no IOSAPIC entries\n");
 
 	/* System-Level Interrupt Routing */
 
-	if (acpi_table_parse_madt(ACPI_MADT_PLAT_INT_SRC, acpi_parse_plat_int_src, ACPI_MAX_PLATFORM_INTERRUPTS) < 0)
-		printk(KERN_ERR PREFIX "Error parsing platform interrupt source entry\n");
+	if (acpi_table_parse_madt
+	    (ACPI_MADT_PLAT_INT_SRC, acpi_parse_plat_int_src,
+	     ACPI_MAX_PLATFORM_INTERRUPTS) < 0)
+		printk(KERN_ERR PREFIX
+		       "Error parsing platform interrupt source entry\n");
 
-	if (acpi_table_parse_madt(ACPI_MADT_INT_SRC_OVR, acpi_parse_int_src_ovr, 0) < 0)
-		printk(KERN_ERR PREFIX "Error parsing interrupt source overrides entry\n");
+	if (acpi_table_parse_madt
+	    (ACPI_MADT_INT_SRC_OVR, acpi_parse_int_src_ovr, 0) < 0)
+		printk(KERN_ERR PREFIX
+		       "Error parsing interrupt source overrides entry\n");
 
 	if (acpi_table_parse_madt(ACPI_MADT_NMI_SRC, acpi_parse_nmi_src, 0) < 0)
 		printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n");
-  skip_madt:
+      skip_madt:
 
 	/*
 	 * FADT says whether a legacy keyboard controller is present.
@@ -681,8 +697,9 @@ acpi_boot_init (void)
 	if (available_cpus == 0) {
 		printk(KERN_INFO "ACPI: Found 0 CPUS; assuming 1\n");
 		printk(KERN_INFO "CPU 0 (0x%04x)", hard_smp_processor_id());
-		smp_boot_data.cpu_phys_id[available_cpus] = hard_smp_processor_id();
-		available_cpus = 1; /* We've got at least one of these, no? */
+		smp_boot_data.cpu_phys_id[available_cpus] =
+		    hard_smp_processor_id();
+		available_cpus = 1;	/* We've got at least one of these, no? */
 	}
 	smp_boot_data.cpu_count = available_cpus;
 
@@ -691,8 +708,10 @@ acpi_boot_init (void)
 	if (srat_num_cpus == 0) {
 		int cpu, i = 1;
 		for (cpu = 0; cpu < smp_boot_data.cpu_count; cpu++)
-			if (smp_boot_data.cpu_phys_id[cpu] != hard_smp_processor_id())
-				node_cpuid[i++].phys_id = smp_boot_data.cpu_phys_id[cpu];
+			if (smp_boot_data.cpu_phys_id[cpu] !=
+			    hard_smp_processor_id())
+				node_cpuid[i++].phys_id =
+				    smp_boot_data.cpu_phys_id[cpu];
 	}
 # endif
 #endif
@@ -700,12 +719,12 @@ acpi_boot_init (void)
 	build_cpu_to_node_map();
 #endif
 	/* Make boot-up look pretty */
-	printk(KERN_INFO "%d CPUs available, %d CPUs total\n", available_cpus, total_cpus);
+	printk(KERN_INFO "%d CPUs available, %d CPUs total\n", available_cpus,
+	       total_cpus);
 	return 0;
 }
 
-int
-acpi_gsi_to_irq (u32 gsi, unsigned int *irq)
+int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
 {
 	int vector;
 
@@ -726,11 +745,10 @@ acpi_gsi_to_irq (u32 gsi, unsigned int *irq)
  */
 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 static
-int
-acpi_map_cpu2node(acpi_handle handle, int cpu, long physid)
+int acpi_map_cpu2node(acpi_handle handle, int cpu, long physid)
 {
 #ifdef CONFIG_ACPI_NUMA
-	int 			pxm_id;
+	int pxm_id;
 
 	pxm_id = acpi_get_pxm(handle);
 
@@ -738,31 +756,28 @@ acpi_map_cpu2node(acpi_handle handle, int cpu, long physid)
 	 * Assuming that the container driver would have set the proximity
 	 * domain and would have initialized pxm_to_nid_map[pxm_id] && pxm_flag
 	 */
-	node_cpuid[cpu].nid = (pxm_id < 0) ? 0:
-			pxm_to_nid_map[pxm_id];
+	node_cpuid[cpu].nid = (pxm_id < 0) ? 0 : pxm_to_nid_map[pxm_id];
 
-	node_cpuid[cpu].phys_id =  physid;
+	node_cpuid[cpu].phys_id = physid;
 #endif
-	return(0);
+	return (0);
 }
 
-
-int
-acpi_map_lsapic(acpi_handle handle, int *pcpu)
+int acpi_map_lsapic(acpi_handle handle, int *pcpu)
 {
-	struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
+	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 	union acpi_object *obj;
 	struct acpi_table_lsapic *lsapic;
 	cpumask_t tmp_map;
 	long physid;
 	int cpu;
- 
+
 	if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer)))
 		return -EINVAL;
 
-	if (!buffer.length ||  !buffer.pointer)
+	if (!buffer.length || !buffer.pointer)
 		return -EINVAL;
- 
+
 	obj = buffer.pointer;
 	if (obj->type != ACPI_TYPE_BUFFER ||
 	    obj->buffer.length < sizeof(*lsapic)) {
@@ -778,7 +793,7 @@ acpi_map_lsapic(acpi_handle handle, int *pcpu)
 		return -EINVAL;
 	}
 
-	physid = ((lsapic->id <<8) | (lsapic->eid));
+	physid = ((lsapic->id << 8) | (lsapic->eid));
 
 	acpi_os_free(buffer.pointer);
 	buffer.length = ACPI_ALLOCATE_BUFFER;
@@ -786,50 +801,49 @@ acpi_map_lsapic(acpi_handle handle, int *pcpu)
 
 	cpus_complement(tmp_map, cpu_present_map);
 	cpu = first_cpu(tmp_map);
-	if(cpu >= NR_CPUS)
+	if (cpu >= NR_CPUS)
 		return -EINVAL;
 
 	acpi_map_cpu2node(handle, cpu, physid);
 
- 	cpu_set(cpu, cpu_present_map);
+	cpu_set(cpu, cpu_present_map);
 	ia64_cpu_to_sapicid[cpu] = physid;
 	ia64_acpiid_to_sapicid[lsapic->acpi_id] = ia64_cpu_to_sapicid[cpu];
 
 	*pcpu = cpu;
-	return(0);
+	return (0);
 }
-EXPORT_SYMBOL(acpi_map_lsapic);
 
+EXPORT_SYMBOL(acpi_map_lsapic);
 
-int
-acpi_unmap_lsapic(int cpu)
+int acpi_unmap_lsapic(int cpu)
 {
 	int i;
 
-	for (i=0; i<MAX_SAPICS; i++) {
- 		if (ia64_acpiid_to_sapicid[i] == ia64_cpu_to_sapicid[cpu]) {
- 			ia64_acpiid_to_sapicid[i] = -1;
- 			break;
- 		}
- 	}
+	for (i = 0; i < MAX_SAPICS; i++) {
+		if (ia64_acpiid_to_sapicid[i] == ia64_cpu_to_sapicid[cpu]) {
+			ia64_acpiid_to_sapicid[i] = -1;
+			break;
+		}
+	}
 	ia64_cpu_to_sapicid[cpu] = -1;
-	cpu_clear(cpu,cpu_present_map);
+	cpu_clear(cpu, cpu_present_map);
 
 #ifdef CONFIG_ACPI_NUMA
 	/* NUMA specific cleanup's */
 #endif
 
-	return(0);
+	return (0);
 }
+
 EXPORT_SYMBOL(acpi_unmap_lsapic);
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
- 
+#endif				/* CONFIG_ACPI_HOTPLUG_CPU */
 
 #ifdef CONFIG_ACPI_NUMA
 acpi_status __devinit
-acpi_map_iosapic (acpi_handle handle, u32 depth, void *context, void **ret)
+acpi_map_iosapic(acpi_handle handle, u32 depth, void *context, void **ret)
 {
-	struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
+	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 	union acpi_object *obj;
 	struct acpi_table_iosapic *iosapic;
 	unsigned int gsi_base;
@@ -878,10 +892,9 @@ acpi_map_iosapic (acpi_handle handle, u32 depth, void *context, void **ret)
 	map_iosapic_to_node(gsi_base, node);
 	return AE_OK;
 }
-#endif /* CONFIG_NUMA */
+#endif				/* CONFIG_NUMA */
 
-int
-acpi_register_ioapic (acpi_handle handle, u64 phys_addr, u32 gsi_base)
+int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)
 {
 	int err;
 
@@ -890,17 +903,18 @@ acpi_register_ioapic (acpi_handle handle, u64 phys_addr, u32 gsi_base)
 
 #if CONFIG_ACPI_NUMA
 	acpi_map_iosapic(handle, 0, NULL, NULL);
-#endif /* CONFIG_ACPI_NUMA */
+#endif				/* CONFIG_ACPI_NUMA */
 
 	return 0;
 }
+
 EXPORT_SYMBOL(acpi_register_ioapic);
 
-int
-acpi_unregister_ioapic (acpi_handle handle, u32 gsi_base)
+int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base)
 {
 	return iosapic_remove(gsi_base);
 }
+
 EXPORT_SYMBOL(acpi_unregister_ioapic);
 
-#endif /* CONFIG_ACPI_BOOT */
+#endif				/* CONFIG_ACPI */
diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index 7936b62f7a2e..a13df592ebf7 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -561,7 +561,7 @@ static inline int vector_is_shared (int vector)
 	return (iosapic_intr_info[vector].count > 1);
 }
 
-static void
+static int
 register_intr (unsigned int gsi, int vector, unsigned char delivery,
 	       unsigned long polarity, unsigned long trigger)
 {
@@ -576,7 +576,7 @@ register_intr (unsigned int gsi, int vector, unsigned char delivery,
 	index = find_iosapic(gsi);
 	if (index < 0) {
 		printk(KERN_WARNING "%s: No IOSAPIC for GSI %u\n", __FUNCTION__, gsi);
-		return;
+		return -ENODEV;
 	}
 
 	iosapic_address = iosapic_lists[index].addr;
@@ -587,7 +587,7 @@ register_intr (unsigned int gsi, int vector, unsigned char delivery,
 		rte = iosapic_alloc_rte();
 		if (!rte) {
 			printk(KERN_WARNING "%s: cannot allocate memory\n", __FUNCTION__);
-			return;
+			return -ENOMEM;
 		}
 
 		rte_index = gsi - gsi_base;
@@ -603,7 +603,7 @@ register_intr (unsigned int gsi, int vector, unsigned char delivery,
 		struct iosapic_intr_info *info = &iosapic_intr_info[vector];
 		if (info->trigger != trigger || info->polarity != polarity) {
 			printk (KERN_WARNING "%s: cannot override the interrupt\n", __FUNCTION__);
-			return;
+			return -EINVAL;
 		}
 	}
 
@@ -623,6 +623,7 @@ register_intr (unsigned int gsi, int vector, unsigned char delivery,
 			       __FUNCTION__, vector, idesc->handler->typename, irq_type->typename);
 		idesc->handler = irq_type;
 	}
+	return 0;
 }
 
 static unsigned int
@@ -710,7 +711,7 @@ int
 iosapic_register_intr (unsigned int gsi,
 		       unsigned long polarity, unsigned long trigger)
 {
-	int vector, mask = 1;
+	int vector, mask = 1, err;
 	unsigned int dest;
 	unsigned long flags;
 	struct iosapic_rte_info *rte;
@@ -737,8 +738,8 @@ again:
 	vector = assign_irq_vector(AUTO_ASSIGN);
 	if (vector < 0) {
 		vector = iosapic_find_sharable_vector(trigger, polarity);
-		if (vector < 0)
-			panic("%s: out of interrupt vectors!\n", __FUNCTION__);
+  		if (vector < 0)
+			return -ENOSPC;
 	}
 
 	spin_lock_irqsave(&irq_descp(vector)->lock, flags);
@@ -753,8 +754,13 @@ again:
 		}
 
 		dest = get_target_cpu(gsi, vector);
-		register_intr(gsi, vector, IOSAPIC_LOWEST_PRIORITY,
+		err = register_intr(gsi, vector, IOSAPIC_LOWEST_PRIORITY,
 			      polarity, trigger);
+		if (err < 0) {
+			spin_unlock(&iosapic_lock);
+			spin_unlock_irqrestore(&irq_descp(vector)->lock, flags);
+			return err;
+		}
 
 		/*
 		 * If the vector is shared and already unmasked for
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 84f89da7c640..1f5c26dbe705 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -384,7 +384,7 @@ setup_arch (char **cmdline_p)
 	if (early_console_setup(*cmdline_p) == 0)
 		mark_bsp_online();
 
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
 	/* Initialize the ACPI boot-time table parser */
 	acpi_table_init();
 # ifdef CONFIG_ACPI_NUMA
@@ -420,7 +420,7 @@ setup_arch (char **cmdline_p)
 
 	cpu_init();	/* initialize the bootstrap CPU */
 
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
 	acpi_boot_init();
 #endif
 
diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index 92ff46ad21e2..706b7734e191 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -36,7 +36,7 @@ int arch_register_cpu(int num)
 	parent = &sysfs_nodes[cpu_to_node(num)];
 #endif /* CONFIG_NUMA */
 
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
 	/*
 	 * If CPEI cannot be re-targetted, and this is
 	 * CPEI target, then dont create the control file
diff --git a/arch/ia64/sn/kernel/irq.c b/arch/ia64/sn/kernel/irq.c
index 9fc74631ba8a..01d18b7b5bb3 100644
--- a/arch/ia64/sn/kernel/irq.c
+++ b/arch/ia64/sn/kernel/irq.c
@@ -23,7 +23,7 @@ static void force_interrupt(int irq);
 static void register_intr_pda(struct sn_irq_info *sn_irq_info);
 static void unregister_intr_pda(struct sn_irq_info *sn_irq_info);
 
-extern int sn_force_interrupt_flag;
+int sn_force_interrupt_flag = 1;
 extern int sn_ioif_inited;
 static struct list_head **sn_irq_lh;
 static spinlock_t sn_irq_info_lock = SPIN_LOCK_UNLOCKED; /* non-IRQ lock */
diff --git a/arch/ia64/sn/kernel/sn2/sn_proc_fs.c b/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
index 51bf82720d99..a06719d752a0 100644
--- a/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
+++ b/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
@@ -52,7 +52,7 @@ static int licenseID_open(struct inode *inode, struct file *file)
  * the bridge chip.  The hardware will then send an interrupt message if the
  * interrupt line is active.  This mimics a level sensitive interrupt.
  */
-int sn_force_interrupt_flag = 1;
+extern int sn_force_interrupt_flag;
 
 static int sn_force_interrupt_show(struct seq_file *s, void *p)
 {
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index 8f868b67ef0f..e63323e03ea9 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -152,7 +152,6 @@ config X86_CPUID
 	  with major 203 and minors 0 to 31 for /dev/cpu/0/cpuid to
 	  /dev/cpu/31/cpuid.
 
-# disable it for opteron optimized builds because it pulls in ACPI_BOOT
 config X86_HT
 	bool
 	depends on SMP && !MK8
@@ -474,7 +473,6 @@ config PCI_DIRECT
 config PCI_MMCONFIG
 	bool "Support mmconfig PCI config space access"
 	depends on PCI && ACPI
-	select ACPI_BOOT
 
 config UNORDERED_IO
        bool "Unordered IO mapping access"
diff --git a/arch/x86_64/defconfig b/arch/x86_64/defconfig
index b97a61e1c71c..bf57e2362bf4 100644
--- a/arch/x86_64/defconfig
+++ b/arch/x86_64/defconfig
@@ -135,8 +135,6 @@ CONFIG_PM_STD_PARTITION=""
 # ACPI (Advanced Configuration and Power Interface) Support
 #
 CONFIG_ACPI=y
-CONFIG_ACPI_BOOT=y
-CONFIG_ACPI_INTERPRETER=y
 CONFIG_ACPI_AC=y
 CONFIG_ACPI_BATTERY=y
 CONFIG_ACPI_BUTTON=y
@@ -151,10 +149,8 @@ CONFIG_ACPI_NUMA=y
 CONFIG_ACPI_TOSHIBA=y
 CONFIG_ACPI_BLACKLIST_YEAR=2001
 # CONFIG_ACPI_DEBUG is not set
-CONFIG_ACPI_BUS=y
 CONFIG_ACPI_EC=y
 CONFIG_ACPI_POWER=y
-CONFIG_ACPI_PCI=y
 CONFIG_ACPI_SYSTEM=y
 # CONFIG_ACPI_CONTAINER is not set
 
diff --git a/arch/x86_64/kernel/Makefile b/arch/x86_64/kernel/Makefile
index c32e198d7b2b..1579bdd0adcd 100644
--- a/arch/x86_64/kernel/Makefile
+++ b/arch/x86_64/kernel/Makefile
@@ -12,7 +12,7 @@ obj-y	:= process.o signal.o entry.o traps.o irq.o \
 obj-$(CONFIG_X86_MCE)         += mce.o
 obj-$(CONFIG_X86_MCE_INTEL)	+= mce_intel.o
 obj-$(CONFIG_MTRR)		+= ../../i386/kernel/cpu/mtrr/
-obj-$(CONFIG_ACPI_BOOT)		+= acpi/
+obj-$(CONFIG_ACPI)		+= acpi/
 obj-$(CONFIG_X86_MSR)		+= msr.o
 obj-$(CONFIG_MICROCODE)		+= microcode.o
 obj-$(CONFIG_X86_CPUID)		+= cpuid.o
diff --git a/arch/x86_64/kernel/acpi/Makefile b/arch/x86_64/kernel/acpi/Makefile
index d2c2ee5f9a88..7da9ace890bd 100644
--- a/arch/x86_64/kernel/acpi/Makefile
+++ b/arch/x86_64/kernel/acpi/Makefile
@@ -1,3 +1,3 @@
-obj-$(CONFIG_ACPI_BOOT)		:= boot.o
-boot-$(CONFIG_ACPI_BOOT)	:= ../../../i386/kernel/acpi/boot.o
+obj-y			:= boot.o
+boot-y			:= ../../../i386/kernel/acpi/boot.o
 obj-$(CONFIG_ACPI_SLEEP)	+= sleep.o wakeup.o
diff --git a/arch/x86_64/kernel/acpi/sleep.c b/arch/x86_64/kernel/acpi/sleep.c
index 7a275de6df22..148f6f7ea315 100644
--- a/arch/x86_64/kernel/acpi/sleep.c
+++ b/arch/x86_64/kernel/acpi/sleep.c
@@ -47,7 +47,6 @@
 #include <asm/proto.h>
 #include <asm/tlbflush.h>
 
-
 /* --------------------------------------------------------------------------
                               Low-Level Sleep Support
    -------------------------------------------------------------------------- */
@@ -77,11 +76,12 @@ static void init_low_mapping(void)
  * Create an identity mapped page table and copy the wakeup routine to
  * low memory.
  */
-int acpi_save_state_mem (void)
+int acpi_save_state_mem(void)
 {
 	init_low_mapping();
 
-	memcpy((void *) acpi_wakeup_address, &wakeup_start, &wakeup_end - &wakeup_start);
+	memcpy((void *)acpi_wakeup_address, &wakeup_start,
+	       &wakeup_end - &wakeup_start);
 	acpi_copy_wakeup_routine(acpi_wakeup_address);
 
 	return 0;
@@ -90,7 +90,7 @@ int acpi_save_state_mem (void)
 /*
  * acpi_restore_state
  */
-void acpi_restore_state_mem (void)
+void acpi_restore_state_mem(void)
 {
 	set_pgd(pgd_offset(current->mm, 0UL), low_ptr);
 	flush_tlb_all();
@@ -108,7 +108,8 @@ void __init acpi_reserve_bootmem(void)
 {
 	acpi_wakeup_address = (unsigned long)alloc_bootmem_low(PAGE_SIZE);
 	if ((&wakeup_end - &wakeup_start) > PAGE_SIZE)
-		printk(KERN_CRIT "ACPI: Wakeup code way too big, will crash on attempt to suspend\n");
+		printk(KERN_CRIT
+		       "ACPI: Wakeup code way too big, will crash on attempt to suspend\n");
 }
 
 static int __init acpi_sleep_setup(char *str)
@@ -127,6 +128,8 @@ static int __init acpi_sleep_setup(char *str)
 
 __setup("acpi_sleep=", acpi_sleep_setup);
 
-#endif /*CONFIG_ACPI_SLEEP*/
+#endif				/*CONFIG_ACPI_SLEEP */
 
-void acpi_pci_link_exit(void) {}
+void acpi_pci_link_exit(void)
+{
+}
diff --git a/arch/x86_64/kernel/genapic.c b/arch/x86_64/kernel/genapic.c
index f062aa03bab7..b1c144f73149 100644
--- a/arch/x86_64/kernel/genapic.c
+++ b/arch/x86_64/kernel/genapic.c
@@ -20,7 +20,7 @@
 #include <asm/smp.h>
 #include <asm/ipi.h>
 
-#if defined(CONFIG_ACPI_BUS)
+#if defined(CONFIG_ACPI)
 #include <acpi/acpi_bus.h>
 #endif
 
@@ -47,7 +47,7 @@ void __init clustered_apic_check(void)
 	u8 cluster_cnt[NUM_APIC_CLUSTERS];
 	int num_cpus = 0;
 
-#if defined(CONFIG_ACPI_BUS)
+#if defined(CONFIG_ACPI)
 	/*
 	 * Some x86_64 machines use physical APIC mode regardless of how many
 	 * procs/clusters are present (x86_64 ES7000 is an example).
diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c
index ba1a744e9bf0..40e0aca088fb 100644
--- a/arch/x86_64/kernel/io_apic.c
+++ b/arch/x86_64/kernel/io_apic.c
@@ -1864,7 +1864,7 @@ device_initcall(ioapic_init_sysfs);
                           ACPI-based IOAPIC Configuration
    -------------------------------------------------------------------------- */
 
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
 
 #define IO_APIC_MAX_ID		0xFE
 
@@ -1947,7 +1947,7 @@ int io_apic_set_pci_routing (int ioapic, int pin, int irq, int edge_level, int a
 	return 0;
 }
 
-#endif /*CONFIG_ACPI_BOOT*/
+#endif /* CONFIG_ACPI */
 
 
 /*
diff --git a/arch/x86_64/kernel/mpparse.c b/arch/x86_64/kernel/mpparse.c
index 79c362d03e2e..8d8ed6ae1d0c 100644
--- a/arch/x86_64/kernel/mpparse.c
+++ b/arch/x86_64/kernel/mpparse.c
@@ -74,7 +74,7 @@ static unsigned int num_processors = 0;
 physid_mask_t phys_cpu_present_map = PHYSID_MASK_NONE;
 
 /* ACPI MADT entry parsing functions */
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
 extern struct acpi_boot_flags acpi_boot;
 #ifdef CONFIG_X86_LOCAL_APIC
 extern int acpi_parse_lapic (acpi_table_entry_header *header);
@@ -84,7 +84,7 @@ extern int acpi_parse_lapic_nmi (acpi_table_entry_header *header);
 #ifdef CONFIG_X86_IO_APIC
 extern int acpi_parse_ioapic (acpi_table_entry_header *header);
 #endif /*CONFIG_X86_IO_APIC*/
-#endif /*CONFIG_ACPI_BOOT*/
+#endif /*CONFIG_ACPI*/
 
 u8 bios_cpu_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = BAD_APICID };
 
@@ -519,8 +519,6 @@ void __init get_smp_config (void)
 	struct intel_mp_floating *mpf = mpf_found;
 
 	/*
- 	 * ACPI may be used to obtain the entire SMP configuration or just to 
- 	 * enumerate/configure processors (CONFIG_ACPI_BOOT).  Note that 
  	 * ACPI supports both logical (e.g. Hyper-Threading) and physical 
  	 * processors, where MPS only supports physical.
  	 */
@@ -673,7 +671,7 @@ void __init find_smp_config (void)
                             ACPI-based MP Configuration
    -------------------------------------------------------------------------- */
 
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
 
 void __init mp_register_lapic_address (
 	u64			address)
@@ -929,11 +927,9 @@ int mp_register_gsi(u32 gsi, int edge_level, int active_high_low)
 	if (acpi_irq_model != ACPI_IRQ_MODEL_IOAPIC)
 		return gsi;
 
-#ifdef CONFIG_ACPI_BUS
 	/* Don't set up the ACPI SCI because it's already set up */
 	if (acpi_fadt.sci_int == gsi)
 		return gsi;
-#endif
 
 	ioapic = mp_find_ioapic(gsi);
 	if (ioapic < 0) {
@@ -973,13 +969,11 @@ int mp_register_gsi(u32 gsi, int edge_level, int active_high_low)
 		if (gsi < MAX_GSI_NUM) {
 			if (gsi > 15)
 				gsi = pci_irq++;
-#ifdef CONFIG_ACPI_BUS
 			/*
 			 * Don't assign IRQ used by ACPI SCI
 			 */
 			if (gsi == acpi_fadt.sci_int)
 				gsi = pci_irq++;
-#endif
 			gsi_to_irq[irq] = gsi;
 		} else {
 			printk(KERN_ERR "GSI %u is too high\n", gsi);
@@ -994,4 +988,4 @@ int mp_register_gsi(u32 gsi, int edge_level, int active_high_low)
 }
 
 #endif /*CONFIG_X86_IO_APIC*/
-#endif /*CONFIG_ACPI_BOOT*/
+#endif /*CONFIG_ACPI*/
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index b356f8e6adfe..0511d8087910 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -71,7 +71,7 @@ unsigned long mmu_cr4_features;
 
 int acpi_disabled;
 EXPORT_SYMBOL(acpi_disabled);
-#ifdef	CONFIG_ACPI_BOOT
+#ifdef	CONFIG_ACPI
 extern int __initdata acpi_ht;
 extern acpi_interrupt_flags	acpi_sci_flags;
 int __initdata acpi_force = 0;
@@ -294,7 +294,7 @@ static __init void parse_cmdline_early (char ** cmdline_p)
 			maxcpus = simple_strtoul(from + 8, NULL, 0);
 		}
 #endif
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
 		/* "acpi=off" disables both ACPI table parsing and interpreter init */
 		if (!memcmp(from, "acpi=off", 8))
 			disable_acpi();
@@ -566,7 +566,7 @@ void __init setup_arch(char **cmdline_p)
 
 	init_memory_mapping(0, (end_pfn_map << PAGE_SHIFT));
 
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
 	/*
 	 * Initialize the ACPI boot-time table parser (gets the RSDP and SDT).
 	 * Call this early for SRAT node setup.
@@ -658,7 +658,7 @@ void __init setup_arch(char **cmdline_p)
 
 	check_ioapic();
 
-#ifdef CONFIG_ACPI_BOOT
+#ifdef CONFIG_ACPI
 	/*
 	 * Read APIC and some other early information from ACPI tables.
 	 */
diff --git a/arch/x86_64/pci/Makefile b/arch/x86_64/pci/Makefile
index 37c92e841dec..bb34e5ef916c 100644
--- a/arch/x86_64/pci/Makefile
+++ b/arch/x86_64/pci/Makefile
@@ -8,7 +8,7 @@ CFLAGS += -Iarch/i386/pci
 obj-y		:= i386.o
 obj-$(CONFIG_PCI_DIRECT)+= direct.o
 obj-y		+= fixup.o
-obj-$(CONFIG_ACPI_PCI)	+= acpi.o
+obj-$(CONFIG_ACPI)	+= acpi.o
 obj-y			+= legacy.o irq.o common.o
 # mmconfig has a 64bit special
 obj-$(CONFIG_PCI_MMCONFIG) += mmconfig.o
diff --git a/arch/x86_64/pci/Makefile-BUS b/arch/x86_64/pci/Makefile-BUS
index 291985f0d2e4..4f0c05abd408 100644
--- a/arch/x86_64/pci/Makefile-BUS
+++ b/arch/x86_64/pci/Makefile-BUS
@@ -8,7 +8,7 @@ CFLAGS += -I arch/i386/pci
 obj-y		:= i386.o
 obj-$(CONFIG_PCI_DIRECT)+= direct.o
 obj-y		+= fixup.o
-obj-$(CONFIG_ACPI_PCI)	+= acpi.o
+obj-$(CONFIG_ACPI)	+= acpi.o
 obj-y			+= legacy.o irq.o common.o
 # mmconfig has a 64bit special
 obj-$(CONFIG_PCI_MMCONFIG) += mmconfig.o