*/
#include <linux/init.h>
-#include <linux/config.h>
#include <linux/acpi.h>
#include <linux/efi.h>
-#include <linux/irq.h>
+#include <linux/cpumask.h>
#include <linux/module.h>
+#include <linux/dmi.h>
+#include <linux/irq.h>
+#include <linux/bootmem.h>
+#include <linux/ioport.h>
#include <asm/pgtable.h>
#include <asm/io_apic.h>
#include <asm/apic.h>
#include <asm/io.h>
-#include <asm/irq.h>
#include <asm/mpspec.h>
+static int __initdata acpi_force = 0;
+
+#ifdef CONFIG_ACPI
+int acpi_disabled = 0;
+#else
+int acpi_disabled = 1;
+#endif
+EXPORT_SYMBOL(acpi_disabled);
+
#ifdef CONFIG_X86_64
-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; }
#include <asm/proto.h>
-#else /* X86 */
+static inline int acpi_madt_oem_check(char *oem_id, char *oem_table_id) { return 0; }
+
+
+#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 || \
- ((acpi_table_entry_header *)entry)->length != sizeof(*entry))
+ ((acpi_table_entry_header *)entry)->length < sizeof(*entry))
#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_noirq; /* skip ACPI IRQ initialization */
+int acpi_pci_disabled __initdata; /* skip ACPI PCI scan and IRQ initialization */
int acpi_ht __initdata = 1; /* enable HT */
int acpi_lapic;
acpi_interrupt_flags acpi_sci_flags __initdata;
int acpi_sci_override_gsi __initdata;
int acpi_skip_timer_override __initdata;
+int acpi_use_timer_override __initdata;
#ifdef CONFIG_X86_LOCAL_APIC
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);
/* --------------------------------------------------------------------------
* 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
+#if defined(CONFIG_X86_64) && !defined(CONFIG_XEN)
/* 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;
+ return NULL;
- if (phys_addr < (end_pfn_map << PAGE_SHIFT))
+ if (phys_addr+size <= (end_pfn_map << PAGE_SHIFT) + PAGE_SIZE)
return __va(phys_addr);
return NULL;
unsigned long base, offset, mapped_size;
int idx;
- if (phys + size < 8*1024*1024)
- return __va(phys);
+#ifndef CONFIG_XEN
+ if (phys + size < 8 * 1024 * 1024)
+ return __va(phys);
+#endif
offset = phys & (PAGE_SIZE - 1);
mapped_size = PAGE_SIZE - offset;
mapped_size += PAGE_SIZE;
}
- return ((unsigned char *) base + offset);
+ return ((unsigned char *)base + offset);
}
#endif
#ifdef CONFIG_PCI_MMCONFIG
-static int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size)
+/* The physical address of the MMCONFIG aperture. Set from ACPI tables. */
+struct acpi_table_mcfg_config *pci_mmcfg_config;
+int pci_mmcfg_config_num;
+
+int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size)
{
struct acpi_table_mcfg *mcfg;
+ unsigned long i;
+ int config_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;
}
- if (mcfg->base_reserved) {
- printk(KERN_ERR PREFIX "MMCONFIG not in low 4GB of memory\n");
+ /* how many config structures do we have */
+ pci_mmcfg_config_num = 0;
+ i = size - sizeof(struct acpi_table_mcfg);
+ while (i >= sizeof(struct acpi_table_mcfg_config)) {
+ ++pci_mmcfg_config_num;
+ i -= sizeof(struct acpi_table_mcfg_config);
+ };
+ if (pci_mmcfg_config_num == 0) {
+ printk(KERN_ERR PREFIX "MMCONFIG has no entries\n");
return -ENODEV;
}
- pci_mmcfg_base_addr = mcfg->base_address;
+ config_size = pci_mmcfg_config_num * sizeof(*pci_mmcfg_config);
+ pci_mmcfg_config = kmalloc(config_size, GFP_KERNEL);
+ if (!pci_mmcfg_config) {
+ printk(KERN_WARNING PREFIX
+ "No memory for MCFG config tables\n");
+ return -ENOMEM;
+ }
+
+ memcpy(pci_mmcfg_config, &mcfg->config, config_size);
+ for (i = 0; i < pci_mmcfg_config_num; ++i) {
+ if (mcfg->config[i].base_reserved) {
+ printk(KERN_ERR PREFIX
+ "MMCONFIG not in low 4GB of memory\n");
+ kfree(pci_mmcfg_config);
+ pci_mmcfg_config_num = 0;
+ return -ENODEV;
+ }
+ }
return 0;
}
-#else
-#define acpi_parse_mcfg NULL
-#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)
+ if (!phys_addr || !size || !cpu_has_apic)
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;
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;
acpi_table_print_madt_entry(header);
- /* no utility in registering a disabled processor */
- if (processor->flags.enabled == 0)
- return 0;
-
- x86_acpiid_to_apicid[processor->acpi_id] = processor->id;
+ /* Record local apic id only when enabled */
+ if (processor->flags.enabled)
+ x86_acpiid_to_apicid[processor->acpi_id] = processor->id;
- mp_register_lapic (
- processor->id, /* APIC ID */
- processor->flags.enabled); /* Enabled? */
+ /*
+ * We need to register disabled CPU as well to permit
+ * counting disabled CPUs. This allows us to size
+ * cpus_possible_map more accurately, to permit
+ * to not preallocating memory for all NR_CPUS
+ * when we use CPU hotplug.
+ */
+ 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;
}
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;
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 __init acpi_sci_ioapic_setup(u32 gsi, u16 polarity, u16 trigger)
{
if (trigger == 0) /* compatible SCI trigger is level */
trigger = 3;
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.
*/
}
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;
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;
return 0;
}
-#endif /* CONFIG_X86_IO_APIC */
-
-#ifdef CONFIG_ACPI_BUS
+#endif /* CONFIG_X86_IO_APIC */
/*
* acpi_pic_sci_set_trigger()
* 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;
* 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;
}
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);
- else
-#endif
- *irq = gsi;
+ *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 triggering, int polarity)
{
unsigned int irq;
unsigned int plat_gsi = gsi;
if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) {
extern void eisa_set_level_irq(unsigned int irq);
- if (edge_level == ACPI_LEVEL_SENSITIVE)
- eisa_set_level_irq(gsi);
+ if (triggering == ACPI_LEVEL_SENSITIVE)
+ eisa_set_level_irq(gsi);
}
#endif
#ifdef CONFIG_X86_IO_APIC
if (acpi_irq_model == ACPI_IRQ_MODEL_IOAPIC) {
- plat_gsi = mp_register_gsi(gsi, edge_level, active_high_low);
+ plat_gsi = mp_register_gsi(gsi, triggering, polarity);
}
#endif
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)
+{
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ union acpi_object *obj;
+ struct acpi_table_lapic *lapic;
+ cpumask_t tmp_map, new_map;
+ u8 physid;
+ int cpu;
+
+ if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer)))
+ return -EINVAL;
+
+ if (!buffer.length || !buffer.pointer)
+ return -EINVAL;
+
+ obj = buffer.pointer;
+ if (obj->type != ACPI_TYPE_BUFFER ||
+ obj->buffer.length < sizeof(*lapic)) {
+ kfree(buffer.pointer);
+ return -EINVAL;
+ }
+
+ lapic = (struct acpi_table_lapic *)obj->buffer.pointer;
+
+ if ((lapic->header.type != ACPI_MADT_LAPIC) ||
+ (!lapic->flags.enabled)) {
+ kfree(buffer.pointer);
+ return -EINVAL;
+ }
+
+ physid = lapic->id;
+
+ kfree(buffer.pointer);
+ buffer.length = ACPI_ALLOCATE_BUFFER;
+ buffer.pointer = NULL;
+
+ tmp_map = cpu_present_map;
+ mp_register_lapic(physid, lapic->flags.enabled);
+
+ /*
+ * If mp_register_lapic successfully generates a new logical cpu
+ * number, then the following will get us exactly what was mapped
+ */
+ cpus_andnot(new_map, cpu_present_map, tmp_map);
+ if (cpus_empty(new_map)) {
+ printk ("Unable to map lapic to logical cpu number\n");
+ return -EINVAL;
+ }
+
+ cpu = first_cpu(new_map);
+
+ *pcpu = cpu;
+ return 0;
+}
+
+EXPORT_SYMBOL(acpi_map_lsapic);
+
+int acpi_unmap_lsapic(int cpu)
+{
+ int i;
+
+ for_each_possible_cpu(i) {
+ if (x86_acpiid_to_apicid[i] == x86_cpu_to_apicid[cpu]) {
+ x86_acpiid_to_apicid[i] = -1;
+ break;
+ }
+ }
+ x86_cpu_to_apicid[cpu] = -1;
+ cpu_clear(cpu, cpu_present_map);
+ num_processors--;
+
+ return (0);
+}
+
+EXPORT_SYMBOL(acpi_unmap_lsapic);
+#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+
+int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)
{
/* TBD */
return -EINVAL;
}
-EXPORT_SYMBOL(acpi_map_lsapic);
+EXPORT_SYMBOL(acpi_register_ioapic);
-int
-acpi_unmap_lsapic(int cpu)
+int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base)
{
/* TBD */
return -EINVAL;
}
-EXPORT_SYMBOL(acpi_unmap_lsapic);
-#endif /* CONFIG_ACPI_HOTPLUG_CPU */
+
+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))
+#ifdef CONFIG_XEN
+ if (strncmp((char *)((unsigned long)isa_bus_to_virt(start) + offset), "RSD PTR ", sig_len))
+#else
+ if (strncmp((char *)(phys_to_virt(start) + offset), "RSD PTR ", sig_len))
+#endif
continue;
return (start + offset);
}
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)
{
struct acpi_table_hpet *hpet_tbl;
+ struct resource *hpet_res;
+ resource_size_t res_start;
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;
return -1;
}
+#define HPET_RESOURCE_NAME_SIZE 9
+ hpet_res = alloc_bootmem(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE);
+ if (hpet_res) {
+ memset(hpet_res, 0, sizeof(*hpet_res));
+ hpet_res->name = (void *)&hpet_res[1];
+ hpet_res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+ snprintf((char *)hpet_res->name, HPET_RESOURCE_NAME_SIZE,
+ "HPET %u", hpet_tbl->number);
+ hpet_res->end = (1 * 1024) - 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);
+
+ res_start = 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);
+
+ res_start = hpet_address;
+ }
+#endif /* X86 */
+
+ if (hpet_res) {
+ hpet_res->start = res_start;
+ hpet_res->end += res_start;
+ insert_resource(&iomem_resource, hpet_res);
}
-#endif /* X86 */
return 0;
}
static int __init acpi_parse_fadt(unsigned long phys, unsigned long size)
{
- struct fadt_descriptor_rev2 *fadt = NULL;
+ struct fadt_descriptor *fadt = NULL;
- fadt = (struct fadt_descriptor_rev2*) __acpi_map_table(phys,size);
- if(!fadt) {
+ fadt = (struct fadt_descriptor *)__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
+#if defined(CONFIG_X86_PM_TIMER) && !defined(CONFIG_XEN)
/* 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;
+ /*
+ * "X" fields are optional extensions to the original V1.0
+ * fields, so we must selectively expand V1.0 fields if the
+ * corresponding X field is zero.
+ */
+ if (!pmtmr_ioport)
+ pmtmr_ioport = fadt->V1_pm_tmr_blk;
} else {
/* FADT rev. 1 */
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)
- return __pa(efi.acpi20);
- else if (efi.acpi)
- return __pa(efi.acpi);
+ if (efi.acpi20 != EFI_INVALID_TABLE_ADDR)
+ return efi.acpi20;
+ else if (efi.acpi != EFI_INVALID_TABLE_ADDR)
+ return efi.acpi;
}
/*
* 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;
}
* 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;
+ if (!cpu_has_apic)
+ return -ENODEV;
+
/*
* 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).
*/
- 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 */
}
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;
*/
if (acpi_disabled || acpi_noirq) {
return -ENODEV;
- }
+ }
+
+ if (!cpu_has_apic)
+ 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;
}
/* 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 */
{
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;
if (!error) {
acpi_lapic = 1;
+#ifdef CONFIG_X86_GENERICARCH
+ generic_bigsmp_probe();
+#endif
/*
* Parse MADT IO-APIC entries
*/
/*
* 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();
}
}
return;
}
+#ifdef __i386__
+
+static int __init disable_acpi_irq(struct dmi_system_id *d)
+{
+ if (!acpi_force) {
+ printk(KERN_NOTICE "%s detected: force use of acpi=noirq\n",
+ d->ident);
+ acpi_noirq_set();
+ }
+ return 0;
+}
+
+static int __init disable_acpi_pci(struct dmi_system_id *d)
+{
+ if (!acpi_force) {
+ printk(KERN_NOTICE "%s detected: force use of pci=noacpi\n",
+ d->ident);
+ acpi_disable_pci();
+ }
+ return 0;
+}
+
+static int __init dmi_disable_acpi(struct dmi_system_id *d)
+{
+ if (!acpi_force) {
+ printk(KERN_NOTICE "%s detected: acpi off\n", d->ident);
+ disable_acpi();
+ } else {
+ printk(KERN_NOTICE
+ "Warning: DMI blacklist says broken, but acpi forced\n");
+ }
+ return 0;
+}
+
+/*
+ * Limit ACPI to CPU enumeration for HT
+ */
+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);
+ disable_acpi();
+ acpi_ht = 1;
+ } else {
+ printk(KERN_NOTICE
+ "Warning: acpi=force overrules DMI blacklist: acpi=ht\n");
+ }
+ return 0;
+}
+
+/*
+ * If your system is blacklisted here, but you find that acpi=force
+ * works for you, please contact acpi-devel@sourceforge.net
+ */
+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"),
+ },
+ },
+
+ /*
+ * 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 = "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 = "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 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 = "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 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 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"),
+ },
+ },
+
+ /*
+ * 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")
+ },
+ },
+ {
+ .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__ */
+
/*
* acpi_boot_table_init() and acpi_boot_init()
* called from setup_arch(), always.
* !0: failure
*/
-int __init
-acpi_boot_table_init(void)
+int __init acpi_boot_table_init(void)
{
int error;
+#ifdef __i386__
+ dmi_check_system(acpi_dmi_table);
+#endif
+
/*
* If acpi_disabled, bail out
* 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.
return error;
}
-#ifdef __i386__
- check_acpi_pci();
-#endif
-
acpi_table_parse(ACPI_BOOT, acpi_parse_sbf);
/*
*/
error = acpi_blacklisted();
if (error) {
- extern int acpi_force;
-
if (acpi_force) {
printk(KERN_WARNING PREFIX "acpi=force override\n");
} else {
return 0;
}
-
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);
acpi_process_madt();
acpi_table_parse(ACPI_HPET, acpi_parse_hpet);
- acpi_table_parse(ACPI_MCFG, acpi_parse_mcfg);
return 0;
}
+static int __init parse_acpi(char *arg)
+{
+ if (!arg)
+ return -EINVAL;
+
+ /* "acpi=off" disables both ACPI table parsing and interpreter */
+ if (strcmp(arg, "off") == 0) {
+ disable_acpi();
+ }
+ /* acpi=force to over-ride black-list */
+ else if (strcmp(arg, "force") == 0) {
+ acpi_force = 1;
+ acpi_ht = 1;
+ acpi_disabled = 0;
+ }
+ /* acpi=strict disables out-of-spec workarounds */
+ else if (strcmp(arg, "strict") == 0) {
+ acpi_strict = 1;
+ }
+ /* Limit ACPI just to boot-time to enable HT */
+ else if (strcmp(arg, "ht") == 0) {
+ if (!acpi_force)
+ disable_acpi();
+ acpi_ht = 1;
+ }
+ /* "acpi=noirq" disables ACPI interrupt routing */
+ else if (strcmp(arg, "noirq") == 0) {
+ acpi_noirq_set();
+ } else {
+ /* Core will printk when we return error. */
+ return -EINVAL;
+ }
+ return 0;
+}
+early_param("acpi", parse_acpi);
+
+/* FIXME: Using pci= for an ACPI parameter is a travesty. */
+static int __init parse_pci(char *arg)
+{
+ if (arg && strcmp(arg, "noacpi") == 0)
+ acpi_disable_pci();
+ return 0;
+}
+early_param("pci", parse_pci);
+
+#ifdef CONFIG_X86_IO_APIC
+static int __init parse_acpi_skip_timer_override(char *arg)
+{
+ acpi_skip_timer_override = 1;
+ return 0;
+}
+early_param("acpi_skip_timer_override", parse_acpi_skip_timer_override);
+
+static int __init parse_acpi_use_timer_override(char *arg)
+{
+ acpi_use_timer_override = 1;
+ return 0;
+}
+early_param("acpi_use_timer_override", parse_acpi_use_timer_override);
+#endif /* CONFIG_X86_IO_APIC */
+
+static int __init setup_acpi_sci(char *s)
+{
+ if (!s)
+ return -EINVAL;
+ if (!strcmp(s, "edge"))
+ acpi_sci_flags.trigger = 1;
+ else if (!strcmp(s, "level"))
+ acpi_sci_flags.trigger = 3;
+ else if (!strcmp(s, "high"))
+ acpi_sci_flags.polarity = 1;
+ else if (!strcmp(s, "low"))
+ acpi_sci_flags.polarity = 3;
+ else
+ return -EINVAL;
+ return 0;
+}
+early_param("acpi_sci", setup_acpi_sci);
+
+int __acpi_acquire_global_lock(unsigned int *lock)
+{
+ unsigned int old, new, val;
+ do {
+ old = *lock;
+ new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1));
+ val = cmpxchg(lock, old, new);
+ } while (unlikely (val != old));
+ return (new < 3) ? -1 : 0;
+}
+
+int __acpi_release_global_lock(unsigned int *lock)
+{
+ unsigned int old, new, val;
+ do {
+ old = *lock;
+ new = old & ~0x3;
+ val = cmpxchg(lock, old, new);
+ } while (unlikely (val != old));
+ return old & 0x1;
+}
git://git.onelab.eu / linux-2.6.git / blobdiff