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Commit c1819ac4 authored by Len Brown's avatar Len Brown
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parents 4c60261b 183b7750
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Showing with 95 additions and 737 deletions
arch/i386/kernel/acpi/boot.c
View file @ c1819ac4
......@@ -35,11 +35,21 @@
#include <asm/irq.h>
#include <asm/mpspec.h>
#ifdef CONFIG_X86_64
static inline void acpi_madt_oem_check(char *oem_id, char *oem_table_id) { }
static inline void clustered_apic_check(void) { }
static inline int ioapic_setup_disabled(void) { return 0; }
#include <asm/proto.h>
#else /* X86 */
#ifdef CONFIG_X86_LOCAL_APIC
#include <mach_apic.h>
#include <mach_mpparse.h>
#include <asm/io_apic.h>
#endif
#endif /* CONFIG_X86_LOCAL_APIC */
#endif /* X86 */
#define PREFIX "ACPI: "
......@@ -67,6 +77,22 @@ static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE;
*/
enum acpi_irq_model_id acpi_irq_model = ACPI_IRQ_MODEL_PIC;
#ifdef CONFIG_X86_64
/* rely on all ACPI tables being in the direct mapping */
char *__acpi_map_table(unsigned long phys_addr, unsigned long size)
{
if (!phys_addr || !size)
return NULL;
if (phys_addr < (end_pfn_map << PAGE_SHIFT))
return __va(phys_addr);
return NULL;
}
#else
/*
* Temporarily use the virtual area starting from FIX_IO_APIC_BASE_END,
* to map the target physical address. The problem is that set_fixmap()
......@@ -106,7 +132,7 @@ char *__acpi_map_table(unsigned long phys, unsigned long size)
return ((unsigned char *) base + offset);
}
#endif
#ifdef CONFIG_PCI_MMCONFIG
static int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size)
......@@ -432,7 +458,6 @@ static int __init acpi_parse_sbf(unsigned long phys_addr, unsigned long size)
#ifdef CONFIG_HPET_TIMER
extern unsigned long hpet_address;
static int __init acpi_parse_hpet(unsigned long phys, unsigned long size)
{
......@@ -453,16 +478,31 @@ static int __init acpi_parse_hpet(unsigned long phys, unsigned long size)
return -1;
}
#ifdef CONFIG_X86_64
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 */
{
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);
printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n",
hpet_tbl->id, hpet_address);
}
#endif /* X86 */
return 0;
}
#else
#define acpi_parse_hpet NULL
#endif
#ifdef CONFIG_X86_PM_TIMER
extern u32 pmtmr_ioport;
#endif
static int __init acpi_parse_fadt(unsigned long phys, unsigned long size)
{
......@@ -589,7 +629,7 @@ acpi_parse_madt_ioapic_entries(void)
/*
* if "noapic" boot option, don't look for IO-APICs
*/
if (ioapic_setup_disabled()) {
if (skip_ioapic_setup) {
printk(KERN_INFO PREFIX "Skipping IOAPIC probe "
"due to 'noapic' option.\n");
return -ENODEV;
......
arch/x86_64/kernel/Makefile
View file @ c1819ac4
......@@ -11,6 +11,7 @@ obj-y := process.o semaphore.o signal.o entry.o traps.o irq.o \
obj-y += mce.o acpi/
obj-$(CONFIG_MTRR) += ../../i386/kernel/cpu/mtrr/
obj-$(CONFIG_ACPI_BOOT) += acpi/
obj-$(CONFIG_X86_MSR) += msr.o
obj-$(CONFIG_MICROCODE) += microcode.o
obj-$(CONFIG_X86_CPUID) += cpuid.o
......
arch/x86_64/kernel/acpi/Makefile
View file @ c1819ac4
obj-$(CONFIG_ACPI_BOOT) := boot.o
boot-$(CONFIG_ACPI_BOOT) := ../../../i386/kernel/acpi/boot.o
obj-$(CONFIG_ACPI_SLEEP) += sleep.o wakeup.o
arch/x86_64/kernel/acpi/boot.c deleted 100644 → 0
View file @ 4c60261b
/*
* acpi.c - Architecture-Specific Low-Level ACPI Support
*
* Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
* Copyright (C) 2001 Jun Nakajima <jun.nakajima@intel.com>
* Copyright (C) 2001 Patrick Mochel <mochel@osdl.org>
* Copyright (C) 2002 Andi Kleen, SuSE Labs (x86-64 port)
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/stddef.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/bootmem.h>
#include <linux/irq.h>
#include <linux/acpi.h>
#include <asm/mpspec.h>
#include <asm/io.h>
#include <asm/apic.h>
#include <asm/apicdef.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/io_apic.h>
#include <asm/proto.h>
#include <asm/tlbflush.h>
#define PREFIX "ACPI: "
int acpi_noirq __initdata; /* skip ACPI IRQ initialization */
int acpi_ht __initdata = 1; /* enable HT */
int acpi_lapic;
int acpi_ioapic;
int acpi_strict;
/* --------------------------------------------------------------------------
Boot-time Configuration
-------------------------------------------------------------------------- */
#ifdef CONFIG_ACPI_BOOT
enum acpi_irq_model_id acpi_irq_model;
/* rely on all ACPI tables being in the direct mapping */
char *
__acpi_map_table (
unsigned long phys_addr,
unsigned long size)
{
if (!phys_addr || !size)
return NULL;
if (phys_addr < (end_pfn_map << PAGE_SHIFT))
return __va(phys_addr);
return NULL;
}
#ifdef CONFIG_PCI_MMCONFIG
static int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size)
{
struct acpi_table_mcfg *mcfg;
if (!phys_addr || !size)
return -EINVAL;
mcfg = (struct acpi_table_mcfg *) __acpi_map_table(phys_addr, size);
if (!mcfg) {
printk(KERN_WARNING PREFIX "Unable to map MCFG\n");
return -ENODEV;
}
if (mcfg->base_reserved) {
printk(KERN_ERR PREFIX "MMCONFIG not in low 4GB of memory\n");
return -ENODEV;
}
pci_mmcfg_base_addr = mcfg->base_address;
return 0;
}
#endif /* CONFIG_PCI_MMCONFIG */
#ifdef CONFIG_X86_LOCAL_APIC
static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE;
static int __init
acpi_parse_madt (
unsigned long phys_addr,
unsigned long size)
{
struct acpi_table_madt *madt = NULL;
if (!phys_addr || !size)
return -EINVAL;
madt = (struct acpi_table_madt *) __acpi_map_table(phys_addr, size);
if (!madt) {
printk(KERN_WARNING PREFIX "Unable to map MADT\n");
return -ENODEV;
}
if (madt->lapic_address)
acpi_lapic_addr = (u64) madt->lapic_address;
printk(KERN_INFO PREFIX "Local APIC address 0x%016x\n",
madt->lapic_address);
return 0;
}
static int __init
acpi_parse_lapic (
acpi_table_entry_header *header)
{
struct acpi_table_lapic *processor = NULL;
processor = (struct acpi_table_lapic*) header;
if (!processor)
return -EINVAL;
acpi_table_print_madt_entry(header);
/* no utility in registering a disabled processor */
if (processor->flags.enabled == 0)
return 0;
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)
{
struct acpi_table_lapic_addr_ovr *lapic_addr_ovr = NULL;
lapic_addr_ovr = (struct acpi_table_lapic_addr_ovr*) header;
if (!lapic_addr_ovr)
return -EINVAL;
acpi_lapic_addr = lapic_addr_ovr->address;
return 0;
}
static int __init
acpi_parse_lapic_nmi (
acpi_table_entry_header *header)
{
struct acpi_table_lapic_nmi *lapic_nmi = NULL;
lapic_nmi = (struct acpi_table_lapic_nmi*) header;
if (!lapic_nmi)
return -EINVAL;
acpi_table_print_madt_entry(header);
if (lapic_nmi->lint != 1)
printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n");
return 0;
}
#endif /*CONFIG_X86_LOCAL_APIC*/
#ifdef CONFIG_X86_IO_APIC
static int __init
acpi_parse_ioapic (
acpi_table_entry_header *header)
{
struct acpi_table_ioapic *ioapic = NULL;
ioapic = (struct acpi_table_ioapic*) header;
if (!ioapic)
return -EINVAL;
acpi_table_print_madt_entry(header);
mp_register_ioapic (
ioapic->id,
ioapic->address,
ioapic->global_irq_base);
return 0;
}
static int __init
acpi_parse_int_src_ovr (
acpi_table_entry_header *header)
{
struct acpi_table_int_src_ovr *intsrc = NULL;
intsrc = (struct acpi_table_int_src_ovr*) header;
if (!intsrc)
return -EINVAL;
acpi_table_print_madt_entry(header);
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)
{
struct acpi_table_nmi_src *nmi_src = NULL;
nmi_src = (struct acpi_table_nmi_src*) header;
if (!nmi_src)
return -EINVAL;
acpi_table_print_madt_entry(header);
/* TBD: Support nimsrc entries? */
return 0;
}
#endif /*CONFIG_X86_IO_APIC*/
static int __init acpi_parse_sbf(unsigned long phys_addr, unsigned long size)
{
struct acpi_table_sbf *sb;
if (!phys_addr || !size)
return -EINVAL;
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 */
return 0;
}
#ifdef CONFIG_HPET_TIMER
static int __init
acpi_parse_hpet (
unsigned long phys_addr,
unsigned long size)
{
struct acpi_table_hpet *hpet_tbl;
hpet_tbl = __va(phys_addr);
if (hpet_tbl->addr.space_id != ACPI_SPACE_MEM) {
printk(KERN_WARNING "acpi: HPET timers must be located in memory.\n");
return -1;
}
vxtime.hpet_address = hpet_tbl->addr.addrl |
((long) hpet_tbl->addr.addrh << 32);
printk(KERN_INFO "acpi: HPET id: %#x base: %#lx\n",
hpet_tbl->id, vxtime.hpet_address);
return 0;
}
#endif
#ifdef CONFIG_ACPI_BUS
/*
* "acpi_pic_sci=level" (current default)
* programs the PIC-mode SCI to Level Trigger.
* (NO-OP if the BIOS set Level Trigger already)
*
* If a PIC-mode SCI is not recognized or gives spurious IRQ7's
* it may require Edge Trigger -- use "acpi_pic_sci=edge"
* (NO-OP if the BIOS set Edge Trigger already)
*
* Port 0x4d0-4d1 are ECLR1 and ECLR2, the Edge/Level Control Registers
* for the 8259 PIC. bit[n] = 1 means irq[n] is Level, otherwise Edge.
* ECLR1 is IRQ's 0-7 (IRQ 0, 1, 2 must be 0)
* ECLR2 is IRQ's 8-15 (IRQ 8, 13 must be 0)
*/
static int __initdata acpi_pic_sci_trigger; /* 0: level, 1: edge */
void __init
acpi_pic_sci_set_trigger(unsigned int irq)
{
unsigned char mask = 1 << (irq & 7);
unsigned int port = 0x4d0 + (irq >> 3);
unsigned char val = inb(port);
printk(PREFIX "IRQ%d SCI:", irq);
if (!(val & mask)) {
printk(" Edge");
if (!acpi_pic_sci_trigger) {
printk(" set to Level");
outb(val | mask, port);
}
} else {
printk(" Level");
if (acpi_pic_sci_trigger) {
printk(" set to Edge");
outb(val | mask, port);
}
}
printk(" Trigger.\n");
}
int __init
acpi_pic_sci_setup(char *str)
{
while (str && *str) {
if (strncmp(str, "level", 5) == 0)
acpi_pic_sci_trigger = 0; /* force level trigger */
if (strncmp(str, "edge", 4) == 0)
acpi_pic_sci_trigger = 1; /* force edge trigger */
str = strchr(str, ',');
if (str)
str += strspn(str, ", \t");
}
return 1;
}
__setup("acpi_pic_sci=", acpi_pic_sci_setup);
#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);
else
#endif
*irq = gsi;
return 0;
}
static unsigned long __init
acpi_scan_rsdp (
unsigned long start,
unsigned long length)
{
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))
continue;
return (start + offset);
}
return 0;
}
unsigned long __init
acpi_find_rsdp (void)
{
unsigned long rsdp_phys = 0;
/*
* 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);
if (!rsdp_phys)
rsdp_phys = acpi_scan_rsdp (0xE0000, 0xFFFFF);
return rsdp_phys;
}
/*
* acpi_boot_init()
* called from setup_arch(), always.
* 1. maps ACPI tables for later use
* 2. enumerates lapics
* 3. enumerates io-apics
*
* side effects:
* acpi_lapic = 1 if LAPIC found
* acpi_ioapic = 1 if IOAPIC found
* if (acpi_lapic && acpi_ioapic) smp_found_config = 1;
* if acpi_blacklisted() acpi_disabled = 1;
* acpi_irq_model=...
* ...
*
* return value: (currently ignored)
* 0: success
* !0: failure
*/
int __init
acpi_boot_init (void)
{
int result = 0;
if (acpi_disabled && !acpi_ht)
return 1;
/*
* The default interrupt routing model is PIC (8259). This gets
* overriden if IOAPICs are enumerated (below).
*/
acpi_irq_model = ACPI_IRQ_MODEL_PIC;
/*
* Initialize the ACPI boot-time table parser.
*/
result = acpi_table_init();
if (result) {
acpi_disabled = 1;
return result;
}
(void) acpi_table_parse(ACPI_BOOT, acpi_parse_sbf);
result = acpi_blacklisted();
if (result) {
printk(KERN_WARNING PREFIX "BIOS listed in blacklist, disabling ACPI support\n");
acpi_disabled = 1;
return result;
}
if (disable_apic) {
printk(KERN_INFO PREFIX "Skipping MADT probe because local APIC is disabled\n");
return 0;
}
#ifdef CONFIG_X86_LOCAL_APIC
/*
* MADT
* ----
* Parse the Multiple APIC Description Table (MADT), if exists.
* Note that this table provides platform SMP configuration
* information -- the successor to MPS tables.
*/
result = acpi_table_parse(ACPI_APIC, acpi_parse_madt);
if (!result) {
printk(KERN_WARNING PREFIX "MADT not present\n");
return 0;
}
else if (result < 0) {
printk(KERN_ERR PREFIX "Error parsing MADT\n");
return result;
}
else if (result > 1)
printk(KERN_WARNING PREFIX "Multiple MADT tables exist\n");
/*
* Local APIC
* ----------
* Note that the LAPIC address is obtained from the MADT (32-bit value)
* and (optionally) overriden by a LAPIC_ADDR_OVR entry (64-bit value).
*/
result = acpi_table_parse_madt(ACPI_MADT_LAPIC_ADDR_OVR, acpi_parse_lapic_addr_ovr, 0);
if (result < 0) {
printk(KERN_ERR PREFIX "Error parsing LAPIC address override entry\n");
return result;
}
mp_register_lapic_address(acpi_lapic_addr);
result = acpi_table_parse_madt(ACPI_MADT_LAPIC, acpi_parse_lapic,
MAX_APICS);
if (!result) {
printk(KERN_ERR PREFIX "No LAPIC entries present\n");
/* TBD: Cleanup to allow fallback to MPS */
return -ENODEV;
}
else if (result < 0) {
printk(KERN_ERR PREFIX "Error parsing LAPIC entry\n");
/* TBD: Cleanup to allow fallback to MPS */
return result;
}
result = acpi_table_parse_madt(ACPI_MADT_LAPIC_NMI, acpi_parse_lapic_nmi, 0);
if (result < 0) {
printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n");
/* TBD: Cleanup to allow fallback to MPS */
return result;
}
acpi_lapic = 1;
#endif /*CONFIG_X86_LOCAL_APIC*/
#ifdef CONFIG_X86_IO_APIC
/*
* I/O APIC
* --------
*/
/*
* ACPI interpreter is required to complete interrupt setup,
* so if it is off, don't enumerate the io-apics with ACPI.
* If MPS is present, it will handle them,
* otherwise the system will stay in PIC mode
*/
if (acpi_disabled || acpi_noirq) {
return 1;
}
/*
* 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");
return 1;
}
result = acpi_table_parse_madt(ACPI_MADT_IOAPIC, acpi_parse_ioapic, MAX_IO_APICS);
if (!result) {
printk(KERN_ERR PREFIX "No IOAPIC entries present\n");
return -ENODEV;
}
else if (result < 0) {
printk(KERN_ERR PREFIX "Error parsing IOAPIC entry\n");
return result;
}
/* Build a default routing table for legacy (ISA) interrupts. */
mp_config_acpi_legacy_irqs();
result = acpi_table_parse_madt(ACPI_MADT_INT_SRC_OVR, acpi_parse_int_src_ovr, NR_IRQ_VECTORS);
if (result < 0) {
printk(KERN_ERR PREFIX "Error parsing interrupt source overrides entry\n");
/* TBD: Cleanup to allow fallback to MPS */
return result;
}
result = acpi_table_parse_madt(ACPI_MADT_NMI_SRC, acpi_parse_nmi_src,
NR_IRQ_VECTORS);
if (result < 0) {
printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n");
/* TBD: Cleanup to allow fallback to MPS */
return result;
}
acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC;
acpi_irq_balance_set(NULL);
acpi_ioapic = 1;
#endif /*CONFIG_X86_IO_APIC*/
#ifdef CONFIG_X86_LOCAL_APIC
if (acpi_lapic && acpi_ioapic)
smp_found_config = 1;
#endif
#ifdef CONFIG_HPET_TIMER
result = acpi_table_parse(ACPI_HPET, acpi_parse_hpet);
if (result < 0)
printk("ACPI: no HPET table found (%d).\n", result);
#endif
#ifdef CONFIG_PCI_MMCONFIG
result = acpi_table_parse(ACPI_MCFG, acpi_parse_mcfg);
if (result)
printk(KERN_ERR PREFIX "Error %d parsing MCFG\n", result);
#endif
return 0;
}
#endif /*CONFIG_ACPI_BOOT*/
arch/x86_64/kernel/mpparse.c
View file @ c1819ac4
......@@ -890,71 +890,6 @@ void __init mp_config_acpi_legacy_irqs (void)
extern FADT_DESCRIPTOR acpi_fadt;
void __init mp_config_ioapic_for_sci(u32 gsi)
{
#ifdef CONFIG_ACPI_INTERPRETER
int ioapic;
int ioapic_pin;
struct acpi_table_madt *madt;
struct acpi_table_int_src_ovr *entry = NULL;
acpi_interrupt_flags flags;
void *madt_end;
acpi_status status;
/*
* Ensure that if there is an interrupt source override entry
* for the ACPI SCI, we leave it as is. Unfortunately this involves
* walking the MADT again.
*/
status = acpi_get_firmware_table("APIC", 1, ACPI_LOGICAL_ADDRESSING,
(struct acpi_table_header **) &madt);
if (ACPI_SUCCESS(status)) {
madt_end = (void *) (unsigned long)madt + madt->header.length;
entry = (struct acpi_table_int_src_ovr *)
((unsigned long) madt + sizeof(struct acpi_table_madt));
while ((void *) entry < madt_end) {
if (entry->header.type == ACPI_MADT_INT_SRC_OVR &&
acpi_fadt.sci_int == entry->bus_irq)
goto found;
entry = (struct acpi_table_int_src_ovr *)
((unsigned long) entry + entry->header.length);
}
}
/*
* Although the ACPI spec says that the SCI should be level/low
* don't reprogram it unless there is an explicit MADT OVR entry
* instructing us to do so -- otherwise we break Tyan boards which
* have the SCI wired edge/high but no MADT OVR.
*/
return;
found:
/*
* See the note at the end of ACPI 2.0b section
* 5.2.10.8 for what this is about.
*/
flags = entry->flags;
acpi_fadt.sci_int = entry->global_irq;
gsi = entry->global_irq;
ioapic = mp_find_ioapic(gsi);
ioapic_pin = gsi - mp_ioapic_routing[ioapic].gsi_start;
/*
* MPS INTI flags:
* trigger: 0=default, 1=edge, 3=level
* polarity: 0=default, 1=high, 3=low
* Per ACPI spec, default for SCI means level/low.
*/
io_apic_set_pci_routing(ioapic, ioapic_pin, gsi,
(flags.trigger == 1 ? 0 : 1), (flags.polarity == 1 ? 0 : 1));
#endif
}
#ifdef CONFIG_ACPI_PCI
void __init mp_parse_prt (void)
......
arch/x86_64/kernel/setup.c
View file @ c1819ac4
......@@ -68,6 +68,7 @@ int acpi_disabled = 0;
#ifdef CONFIG_ACPI_BOOT
extern int __initdata acpi_ht;
extern acpi_interrupt_flags acpi_sci_flags;
/* int __initdata acpi_force = 0; */
#endif
......@@ -229,6 +230,17 @@ static __init void parse_cmdline_early (char ** cmdline_p)
if (!memcmp(from, "acpi=ht", 7)) {
acpi_ht = 1;
}
else if (!memcmp(from, "pci=noacpi", 10))
acpi_noirq_set();
else if (!memcmp(from, "acpi_sci=edge", 13))
acpi_sci_flags.trigger = 1;
else if (!memcmp(from, "acpi_sci=level", 14))
acpi_sci_flags.trigger = 3;
else if (!memcmp(from, "acpi_sci=high", 13))
acpi_sci_flags.polarity = 1;
else if (!memcmp(from, "acpi_sci=low", 12))
acpi_sci_flags.polarity = 3;
/* acpi=strict disables out-of-spec workarounds */
else if (!memcmp(from, "acpi=strict", 11)) {
......
drivers/acpi/Kconfig
View file @ c1819ac4
......@@ -255,6 +255,7 @@ config X86_PM_TIMER
bool "Power Management Timer Support"
depends on X86 && ACPI
depends on ACPI_BOOT && EXPERIMENTAL
depends on !X86_64
default n
help
The Power Management Timer is available on all ACPI-capable,
......
drivers/acpi/bus.c
View file @ c1819ac4
......@@ -39,9 +39,7 @@
#define _COMPONENT ACPI_BUS_COMPONENT
ACPI_MODULE_NAME ("acpi_bus")
#ifdef CONFIG_X86_64
extern void __init acpi_pic_sci_set_trigger(unsigned int irq);
#elif defined(CONFIG_X86)
#ifdef CONFIG_X86
extern void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger);
#endif
......@@ -613,13 +611,8 @@ acpi_bus_init (void)
printk(KERN_ERR PREFIX "Unable to get the FADT\n");
goto error1;
}
#ifdef CONFIG_X86_64
/* Ensure the SCI is set to level-triggered, active-low */
if (acpi_ioapic)
mp_config_ioapic_for_sci(acpi_fadt.sci_int);
else
acpi_pic_sci_set_trigger(acpi_fadt.sci_int);
#elif defined(CONFIG_X86)
#ifdef CONFIG_X86
if (!acpi_ioapic) {
extern acpi_interrupt_flags acpi_sci_flags;
/* Set PIC-mode SCI trigger type */
......
drivers/acpi/processor.c
View file @ c1819ac4
......@@ -67,8 +67,6 @@
#define C3_OVERHEAD 4 /* 1us (3.579 ticks per us) */
const u32 POWER_OF_2[] = {1,2,4,8,16,32,64};
#define ACPI_PROCESSOR_LIMIT_USER 0
#define ACPI_PROCESSOR_LIMIT_THERMAL 1
......@@ -1489,7 +1487,7 @@ acpi_processor_get_throttling_info (
return_VALUE(0);
}
pr->throttling.state_count = POWER_OF_2[acpi_fadt.duty_width];
pr->throttling.state_count = 1 << acpi_fadt.duty_width;
/*
* Compute state values. Note that throttling displays a linear power/
......
drivers/acpi/toshiba_acpi.c
View file @ c1819ac4
......@@ -33,7 +33,7 @@
*
*/
#define TOSHIBA_ACPI_VERSION "0.17"
#define TOSHIBA_ACPI_VERSION "0.18"
#define PROC_INTERFACE_VERSION 1
#include <linux/kernel.h>
......@@ -41,6 +41,7 @@
#include <linux/init.h>
#include <linux/types.h>
#include <linux/proc_fs.h>
#include <asm/uaccess.h>
#include <acpi/acpi_drivers.h>
......@@ -105,24 +106,6 @@ _set_bit(u32* word, u32 mask, int value)
*word = (*word & ~mask) | (mask * value);
}
/* an sscanf that takes explicit string length */
static int
snscanf(const char* str, int n, const char* format, ...)
{
va_list args;
int result;
char* str2 = kmalloc(n + 1, GFP_KERNEL);
if (str2 == 0) return 0;
/* NOTE: don't even _think_ about replacing this with strlcpy */
strncpy(str2, str, n);
str2[n] = 0;
va_start(args, format);
result = vsscanf(str2, format, args);
va_end(args);
kfree(str2);
return result;
}
/* acpi interface wrappers
*/
......@@ -269,10 +252,26 @@ dispatch_read(char* page, char** start, off_t off, int count, int* eof,
}
static int
dispatch_write(struct file* file, const char* buffer, unsigned long count,
ProcItem* item)
dispatch_write(struct file* file, __user const char* buffer,
unsigned long count, ProcItem* item)
{
return item->write_func(buffer, count);
int result;
char* tmp_buffer;
/* Arg buffer points to userspace memory, which can't be accessed
* directly. Since we're making a copy, zero-terminate the
* destination so that sscanf can be used on it safely.
*/
tmp_buffer = kmalloc(count + 1, GFP_KERNEL);
if (copy_from_user(tmp_buffer, buffer, count)) {
result = -EFAULT;
}
else {
tmp_buffer[count] = 0;
result = item->write_func(tmp_buffer, count);
}
kfree(tmp_buffer);
return result;
}
static char*
......@@ -300,7 +299,7 @@ write_lcd(const char* buffer, unsigned long count)
int value;
u32 hci_result;
if (snscanf(buffer, count, " brightness : %i", &value) == 1 &&
if (sscanf(buffer, " brightness : %i", &value) == 1 &&
value >= 0 && value < HCI_LCD_BRIGHTNESS_LEVELS) {
value = value << HCI_LCD_BRIGHTNESS_SHIFT;
hci_write1(HCI_LCD_BRIGHTNESS, value, &hci_result);
......@@ -350,11 +349,11 @@ write_video(const char* buffer, unsigned long count)
* NOTE: to keep scanning simple, invalid fields are ignored
*/
while (remain) {
if (snscanf(buffer, remain, " lcd_out : %i", &value) == 1)
if (sscanf(buffer, " lcd_out : %i", &value) == 1)
lcd_out = value & 1;
else if (snscanf(buffer, remain, " crt_out : %i", &value) == 1)
else if (sscanf(buffer, " crt_out : %i", &value) == 1)
crt_out = value & 1;
else if (snscanf(buffer, remain, " tv_out : %i", &value) == 1)
else if (sscanf(buffer, " tv_out : %i", &value) == 1)
tv_out = value & 1;
/* advance to one character past the next ; */
do {
......@@ -407,7 +406,7 @@ write_fan(const char* buffer, unsigned long count)
int value;
u32 hci_result;
if (snscanf(buffer, count, " force_on : %i", &value) == 1 &&
if (sscanf(buffer, " force_on : %i", &value) == 1 &&
value >= 0 && value <= 1) {
hci_write1(HCI_FAN, value, &hci_result);
if (hci_result != HCI_SUCCESS)
......@@ -458,7 +457,7 @@ write_keys(const char* buffer, unsigned long count)
{
int value;
if (snscanf(buffer, count, " hotkey_ready : %i", &value) == 1 &&
if (sscanf(buffer, " hotkey_ready : %i", &value) == 1 &&
value == 0) {
key_event_valid = 0;
} else {
......
include/asm-x86_64/mpspec.h
View file @ c1819ac4
......@@ -193,8 +193,6 @@ extern void mp_parse_prt (void);
#endif /*CONFIG_X86_IO_APIC*/
#endif
extern void mp_config_ioapic_for_sci(u32 gsi);
extern int using_apic_timer;
#define PHYSID_ARRAY_SIZE BITS_TO_LONGS(MAX_APICS)
......
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