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-rw-r--r--arch/i386/kernel/Makefile2
-rw-r--r--arch/i386/kernel/acpi/Makefile2
-rw-r--r--arch/i386/kernel/acpi/boot.c557
-rw-r--r--arch/i386/kernel/acpi/earlyquirk.c40
-rw-r--r--arch/i386/kernel/acpi/sleep.c35
-rw-r--r--arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c57
-rw-r--r--arch/i386/kernel/io_apic.c4
-rw-r--r--arch/i386/kernel/mpparse.c14
-rw-r--r--arch/i386/kernel/setup.c10
9 files changed, 354 insertions, 367 deletions
diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile
index 64682a0edac..f10de0f2c5e 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-$(CONFIG_X86_MSR) += msr.o
diff --git a/arch/i386/kernel/acpi/Makefile b/arch/i386/kernel/acpi/Makefile
index 5e291a20c03..267ca48e1b6 100644
--- a/arch/i386/kernel/acpi/Makefile
+++ b/arch/i386/kernel/acpi/Makefile
@@ -1,4 +1,4 @@
-obj-$(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 34ee500c26e..a63351c085c 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 726a5ca4b16..f1b9d2a46da 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 c1af93032ff..1cb2b186a3a 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 60a9e54dd20..822c8ce9d1f 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 0e727e6da5c..889eda2d7b1 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 5d0b9a8fc43..cafaeffe381 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 e29fd5aeaf8..a659d274914 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.
*/
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-26 07:41:55 +0000