diff options
Diffstat (limited to 'arch/i386/kernel/acpi')
| -rw-r--r-- | arch/i386/kernel/acpi/Makefile | 8 | ||||
| -rw-r--r-- | arch/i386/kernel/acpi/boot.c | 1171 | ||||
| -rw-r--r-- | arch/i386/kernel/acpi/cstate.c | 103 | ||||
| -rw-r--r-- | arch/i386/kernel/acpi/earlyquirk.c | 51 | ||||
| -rw-r--r-- | arch/i386/kernel/acpi/sleep.c | 120 | ||||
| -rw-r--r-- | arch/i386/kernel/acpi/wakeup.S | 319 |
6 files changed, 0 insertions, 1772 deletions
diff --git a/arch/i386/kernel/acpi/Makefile b/arch/i386/kernel/acpi/Makefile deleted file mode 100644 index 5e291a20c03..00000000000 --- a/arch/i386/kernel/acpi/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -obj-$(CONFIG_ACPI_BOOT) := boot.o -obj-$(CONFIG_X86_IO_APIC) += earlyquirk.o -obj-$(CONFIG_ACPI_SLEEP) += sleep.o wakeup.o - -ifneq ($(CONFIG_ACPI_PROCESSOR),) -obj-y += cstate.o -endif - diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c deleted file mode 100644 index b7808a89d94..00000000000 --- a/arch/i386/kernel/acpi/boot.c +++ /dev/null @@ -1,1171 +0,0 @@ -/* - * boot.c - Architecture-Specific Low-Level ACPI Boot Support - * - * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> - * Copyright (C) 2001 Jun Nakajima <jun.nakajima@intel.com> - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * 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/init.h> -#include <linux/config.h> -#include <linux/acpi.h> -#include <linux/efi.h> -#include <linux/irq.h> -#include <linux/module.h> -#include <linux/dmi.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> - -#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 */ - -#ifdef CONFIG_X86_LOCAL_APIC -#include <mach_apic.h> -#include <mach_mpparse.h> -#endif /* CONFIG_X86_LOCAL_APIC */ - -#endif /* X86 */ - -#define BAD_MADT_ENTRY(entry, end) ( \ - (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ - ((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_ht __initdata = 1; /* enable HT */ - -int acpi_lapic; -int acpi_ioapic; -int acpi_strict; -EXPORT_SYMBOL(acpi_strict); - -acpi_interrupt_flags acpi_sci_flags __initdata; -int acpi_sci_override_gsi __initdata; -int acpi_skip_timer_override __initdata; - -#ifdef CONFIG_X86_LOCAL_APIC -static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; -#endif - -#ifndef __HAVE_ARCH_CMPXCHG -#warning ACPI uses CMPXCHG, i486 and later hardware -#endif - -#define MAX_MADT_ENTRIES 256 -u8 x86_acpiid_to_apicid[MAX_MADT_ENTRIES] = - { [0 ... MAX_MADT_ENTRIES-1] = 0xff }; -EXPORT_SYMBOL(x86_acpiid_to_apicid); - -/* -------------------------------------------------------------------------- - Boot-time Configuration - -------------------------------------------------------------------------- */ - -/* - * 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; - -#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() - * provides a single page, and it is possible that the page is not - * sufficient. - * By using this area, we can map up to MAX_IO_APICS pages temporarily, - * i.e. until the next __va_range() call. - * - * Important Safety Note: The fixed I/O APIC page numbers are *subtracted* - * from the fixed base. That's why we start at FIX_IO_APIC_BASE_END and - * count idx down while incrementing the phys address. - */ -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); - - offset = phys & (PAGE_SIZE - 1); - mapped_size = PAGE_SIZE - offset; - set_fixmap(FIX_ACPI_END, phys); - base = fix_to_virt(FIX_ACPI_END); - - /* - * Most cases can be covered by the below. - */ - idx = FIX_ACPI_END; - while (mapped_size < size) { - if (--idx < FIX_ACPI_BEGIN) - return NULL; /* cannot handle this */ - phys += PAGE_SIZE; - set_fixmap(idx, phys); - mapped_size += PAGE_SIZE; - } - - return ((unsigned char *) base + offset); -} -#endif - -#ifdef CONFIG_PCI_MMCONFIG -/* 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); - if (!mcfg) { - printk(KERN_WARNING PREFIX "Unable to map MCFG\n"); - return -ENODEV; - } - - /* 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; - } - - 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"); - return -ENODEV; - } - } - - return 0; -} -#endif /* CONFIG_PCI_MMCONFIG */ - -#ifdef CONFIG_X86_LOCAL_APIC -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_DEBUG PREFIX "Local APIC address 0x%08x\n", - 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) -{ - struct acpi_table_lapic *processor = NULL; - - 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; - - 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) -{ - struct acpi_table_lapic_addr_ovr *lapic_addr_ovr = NULL; - - lapic_addr_ovr = (struct acpi_table_lapic_addr_ovr*) header; - - if (BAD_MADT_ENTRY(lapic_addr_ovr, end)) - return -EINVAL; - - acpi_lapic_addr = lapic_addr_ovr->address; - - return 0; -} - -static int __init -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; - - if (BAD_MADT_ENTRY(lapic_nmi, end)) - 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*/ - -#if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_ACPI_INTERPRETER) - -static int __init -acpi_parse_ioapic ( - acpi_table_entry_header *header, const unsigned long end) -{ - struct acpi_table_ioapic *ioapic = NULL; - - 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); - - return 0; -} - -/* - * Parse Interrupt Source Override for the ACPI SCI - */ -static void -acpi_sci_ioapic_setup(u32 gsi, u16 polarity, u16 trigger) -{ - if (trigger == 0) /* compatible SCI trigger is level */ - trigger = 3; - - if (polarity == 0) /* compatible SCI polarity is low */ - polarity = 3; - - /* Command-line over-ride via acpi_sci= */ - if (acpi_sci_flags.trigger) - trigger = acpi_sci_flags.trigger; - - if (acpi_sci_flags.polarity) - polarity = acpi_sci_flags.polarity; - - /* - * 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. - */ - mp_override_legacy_irq(gsi, polarity, trigger, gsi); - - /* - * stash over-ride to indicate we've been here - * and for later update of acpi_fadt - */ - acpi_sci_override_gsi = gsi; - return; -} - -static int __init -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; - - if (BAD_MADT_ENTRY(intsrc, end)) - return -EINVAL; - - acpi_table_print_madt_entry(header); - - if (intsrc->bus_irq == acpi_fadt.sci_int) { - acpi_sci_ioapic_setup(intsrc->global_irq, - 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; - } - - 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) -{ - struct acpi_table_nmi_src *nmi_src = NULL; - - nmi_src = (struct acpi_table_nmi_src*) header; - - if (BAD_MADT_ENTRY(nmi_src, end)) - return -EINVAL; - - acpi_table_print_madt_entry(header); - - /* TBD: Support nimsrc entries? */ - - return 0; -} - -#endif /* CONFIG_X86_IO_APIC */ - -#ifdef CONFIG_ACPI_BUS - -/* - * acpi_pic_sci_set_trigger() - * - * use ELCR to set PIC-mode trigger type for SCI - * - * If a PIC-mode SCI is not recognized or gives spurious IRQ7's - * it may require Edge Trigger -- use "acpi_sci=edge" - * - * 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) - */ - -void __init -acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger) -{ - unsigned int mask = 1 << irq; - unsigned int old, new; - - /* Real old ELCR mask */ - old = inb(0x4d0) | (inb(0x4d1) << 8); - - /* - * If we use ACPI to set PCI irq's, then we should clear ELCR - * since we will set it correctly as we enable the PCI irq - * routing. - */ - new = acpi_noirq ? old : 0; - - /* - * Update SCI information in the ELCR, it isn't in the PCI - * routing tables.. - */ - switch (trigger) { - case 1: /* Edge - clear */ - new &= ~mask; - break; - case 3: /* Level - set */ - new |= mask; - break; - } - - if (old == new) - return; - - printk(PREFIX "setting ELCR to %04x (from %04x)\n", new, old); - outb(new, 0x4d0); - 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; - return 0; -} - -unsigned int acpi_register_gsi(u32 gsi, int edge_level, int active_high_low) -{ - unsigned int irq; - unsigned int plat_gsi = gsi; - -#ifdef CONFIG_PCI - /* - * Make sure all (legacy) PCI IRQs are set as level-triggered. - */ - 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); - } -#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); - } -#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) -{ - /* TBD */ - return -EINVAL; -} -EXPORT_SYMBOL(acpi_map_lsapic); - - -int -acpi_unmap_lsapic(int cpu) -{ - /* TBD */ - return -EINVAL; -} -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_register_ioapic); - -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) -{ - 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; -} - -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, unsigned long size) -{ - struct acpi_table_hpet *hpet_tbl; - - if (!phys || !size) - return -EINVAL; - - 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; - } - - if (hpet_tbl->addr.space_id != ACPI_SPACE_MEM) { - printk(KERN_WARNING PREFIX "HPET timers must be located in " - "memory.\n"); - 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); - } -#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) -{ - struct fadt_descriptor_rev2 *fadt = NULL; - - 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 - -#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) - return 0; - - pmtmr_ioport = fadt->xpm_tmr_blk.address; - } 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); -#endif - return 0; -} - - -unsigned long __init -acpi_find_rsdp (void) -{ - unsigned long rsdp_phys = 0; - - if (efi_enabled) { - if (efi.acpi20) - return __pa(efi.acpi20); - else if (efi.acpi) - return __pa(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); - if (!rsdp_phys) - rsdp_phys = acpi_scan_rsdp (0xE0000, 0x20000); - - return rsdp_phys; -} - -#ifdef CONFIG_X86_LOCAL_APIC -/* - * Parse LAPIC entries in MADT - * returns 0 on success, < 0 on error - */ -static int __init -acpi_parse_madt_lapic_entries(void) -{ - int count; - - /* - * 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); - if (count < 0) { - 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) { - printk(KERN_ERR PREFIX "No LAPIC entries present\n"); - /* TBD: Cleanup to allow fallback to MPS */ - return -ENODEV; - } - 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); - if (count < 0) { - printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n"); - /* TBD: Cleanup to allow fallback to MPS */ - return count; - } - return 0; -} -#endif /* CONFIG_X86_LOCAL_APIC */ - -#if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_ACPI_INTERPRETER) -/* - * Parse IOAPIC related entries in MADT - * returns 0 on success, < 0 on error - */ -static int __init -acpi_parse_madt_ioapic_entries(void) -{ - int count; - - /* - * 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 -ENODEV; - } - - /* - * 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 -ENODEV; - } - - 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) { - 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); - if (count < 0) { - printk(KERN_ERR PREFIX "Error parsing interrupt source overrides entry\n"); - /* TBD: Cleanup to allow fallback to MPS */ - return count; - } - - /* - * If BIOS did not supply an INT_SRC_OVR for the SCI - * pretend we got one so we can set the SCI flags. - */ - if (!acpi_sci_override_gsi) - acpi_sci_ioapic_setup(acpi_fadt.sci_int, 0, 0); - - /* 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); - if (count < 0) { - printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n"); - /* TBD: Cleanup to allow fallback to MPS */ - return count; - } - - return 0; -} -#else -static inline int acpi_parse_madt_ioapic_entries(void) -{ - return -1; -} -#endif /* !(CONFIG_X86_IO_APIC && CONFIG_ACPI_INTERPRETER) */ - - -static void __init -acpi_process_madt(void) -{ -#ifdef CONFIG_X86_LOCAL_APIC - int count, error; - - count = acpi_table_parse(ACPI_APIC, acpi_parse_madt); - if (count >= 1) { - - /* - * Parse MADT LAPIC entries - */ - error = acpi_parse_madt_lapic_entries(); - if (!error) { - acpi_lapic = 1; - - /* - * Parse MADT IO-APIC entries - */ - error = acpi_parse_madt_ioapic_entries(); - if (!error) { - acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC; - acpi_irq_balance_set(NULL); - acpi_ioapic = 1; - - smp_found_config = 1; - clustered_apic_check(); - } - } - if (error == -EINVAL) { - /* - * Dell Precision Workstation 410, 610 come here. - */ - printk(KERN_ERR PREFIX "Invalid BIOS MADT, disabling ACPI\n"); - disable_acpi(); - } - } -#endif - return; -} - -extern int acpi_force; - -#ifdef __i386__ - -#ifdef CONFIG_ACPI_PCI -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; -} -#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); - 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"), - }, - }, - -#ifdef CONFIG_ACPI_PCI - /* - * 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 - { } -}; - -#endif /* __i386__ */ - -/* - * acpi_boot_table_init() and acpi_boot_init() - * called from setup_arch(), always. - * 1. checksums all tables - * 2. enumerates lapics - * 3. enumerates io-apics - * - * acpi_table_init() is separate to allow reading SRAT without - * other side effects. - * - * side effects of acpi_boot_init: - * 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_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; - - /* - * Initialize the ACPI boot-time table parser. - */ - error = acpi_table_init(); - if (error) { - disable_acpi(); - return error; - } - -#ifdef __i386__ - check_acpi_pci(); -#endif - - acpi_table_parse(ACPI_BOOT, acpi_parse_sbf); - - /* - * blacklist may disable ACPI entirely - */ - error = acpi_blacklisted(); - if (error) { - if (acpi_force) { - printk(KERN_WARNING PREFIX "acpi=force override\n"); - } else { - printk(KERN_WARNING PREFIX "Disabling ACPI support\n"); - disable_acpi(); - return error; - } - } - - return 0; -} - - -int __init acpi_boot_init(void) -{ - /* - * If acpi_disabled, bail out - * One exception: acpi=ht continues far enough to enumerate LAPICs - */ - if (acpi_disabled && !acpi_ht) - return 1; - - acpi_table_parse(ACPI_BOOT, acpi_parse_sbf); - - /* - * set sci_int and PM timer address - */ - acpi_table_parse(ACPI_FADT, acpi_parse_fadt); - - /* - * Process the Multiple APIC Description Table (MADT), if present - */ - acpi_process_madt(); - - acpi_table_parse(ACPI_HPET, acpi_parse_hpet); - - return 0; -} - diff --git a/arch/i386/kernel/acpi/cstate.c b/arch/i386/kernel/acpi/cstate.c deleted file mode 100644 index 4c3036ba65d..00000000000 --- a/arch/i386/kernel/acpi/cstate.c +++ /dev/null @@ -1,103 +0,0 @@ -/* - * arch/i386/kernel/acpi/cstate.c - * - * Copyright (C) 2005 Intel Corporation - * Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> - * - Added _PDC for SMP C-states on Intel CPUs - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/acpi.h> - -#include <acpi/processor.h> -#include <asm/acpi.h> - -static void acpi_processor_power_init_intel_pdc(struct acpi_processor_power - *pow) -{ - struct acpi_object_list *obj_list; - union acpi_object *obj; - u32 *buf; - - /* allocate and initialize pdc. It will be used later. */ - obj_list = kmalloc(sizeof(struct acpi_object_list), GFP_KERNEL); - if (!obj_list) { - printk(KERN_ERR "Memory allocation error\n"); - return; - } - - obj = kmalloc(sizeof(union acpi_object), GFP_KERNEL); - if (!obj) { - printk(KERN_ERR "Memory allocation error\n"); - kfree(obj_list); - return; - } - - buf = kmalloc(12, GFP_KERNEL); - if (!buf) { - printk(KERN_ERR "Memory allocation error\n"); - kfree(obj); - kfree(obj_list); - return; - } - - buf[0] = ACPI_PDC_REVISION_ID; - buf[1] = 1; - buf[2] = ACPI_PDC_C_CAPABILITY_SMP; - - obj->type = ACPI_TYPE_BUFFER; - obj->buffer.length = 12; - obj->buffer.pointer = (u8 *) buf; - obj_list->count = 1; - obj_list->pointer = obj; - pow->pdc = obj_list; - - return; -} - -/* Initialize _PDC data based on the CPU vendor */ -void acpi_processor_power_init_pdc(struct acpi_processor_power *pow, - unsigned int cpu) -{ - struct cpuinfo_x86 *c = cpu_data + cpu; - - pow->pdc = NULL; - if (c->x86_vendor == X86_VENDOR_INTEL) - acpi_processor_power_init_intel_pdc(pow); - - return; -} - -EXPORT_SYMBOL(acpi_processor_power_init_pdc); - -/* - * Initialize bm_flags based on the CPU cache properties - * On SMP it depends on cache configuration - * - When cache is not shared among all CPUs, we flush cache - * before entering C3. - * - When cache is shared among all CPUs, we use bm_check - * mechanism as in UP case - * - * This routine is called only after all the CPUs are online - */ -void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags, - unsigned int cpu) -{ - struct cpuinfo_x86 *c = cpu_data + cpu; - - flags->bm_check = 0; - if (num_online_cpus() == 1) - flags->bm_check = 1; - else if (c->x86_vendor == X86_VENDOR_INTEL) { - /* - * Today all CPUs that support C3 share cache. - * TBD: This needs to look at cache shared map, once - * multi-core detection patch makes to the base. - */ - flags->bm_check = 1; - } -} - -EXPORT_SYMBOL(acpi_processor_power_init_bm_check); diff --git a/arch/i386/kernel/acpi/earlyquirk.c b/arch/i386/kernel/acpi/earlyquirk.c deleted file mode 100644 index 726a5ca4b16..00000000000 --- a/arch/i386/kernel/acpi/earlyquirk.c +++ /dev/null @@ -1,51 +0,0 @@ -/* - * Do early PCI probing for bug detection when the main PCI subsystem is - * not up yet. - */ -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <asm/pci-direct.h> -#include <asm/acpi.h> - -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; - } - return 0; -} - -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++) { - u32 class; - u32 vendor; - class = read_pci_config(num,slot,func, - PCI_CLASS_REVISION); - if (class == 0xffffffff) - break; - - if ((class >> 16) != PCI_CLASS_BRIDGE_PCI) - continue; - - vendor = read_pci_config(num, slot, func, - PCI_VENDOR_ID); - - if (check_bridge(vendor&0xffff, vendor >> 16)) - return; - } - - } - } -} diff --git a/arch/i386/kernel/acpi/sleep.c b/arch/i386/kernel/acpi/sleep.c deleted file mode 100644 index c1af93032ff..00000000000 --- a/arch/i386/kernel/acpi/sleep.c +++ /dev/null @@ -1,120 +0,0 @@ -/* - * sleep.c - x86-specific ACPI sleep support. - * - * Copyright (C) 2001-2003 Patrick Mochel - * Copyright (C) 2001-2003 Pavel Machek <pavel@suse.cz> - */ - -#include <linux/acpi.h> -#include <linux/bootmem.h> -#include <linux/dmi.h> -#include <asm/smp.h> -#include <asm/tlbflush.h> - -/* address in low memory of the wakeup routine. */ -unsigned long acpi_wakeup_address = 0; -unsigned long acpi_video_flags; -extern char wakeup_start, wakeup_end; - -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) -{ - 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)); - pgd_ofs++, pgd++; - } - flush_tlb_all(); -} - -/** - * acpi_save_state_mem - save kernel state - * - * Create an identity mapped page table and copy the wakeup routine to - * low memory. - */ -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); - acpi_copy_wakeup_routine(acpi_wakeup_address); - - return 0; -} - -/* - * acpi_restore_state - undo effects of acpi_save_state_mem - */ -void acpi_restore_state_mem (void) -{ - zap_low_mappings(); -} - -/** - * acpi_reserve_bootmem - do _very_ early ACPI initialisation - * - * We allocate a page from the first 1MB of memory for the wakeup - * routine for when we come back from a sleep state. The - * runtime allocator allows specification of <16MB pages, but not - * <1MB pages. - */ -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"); - return; - } - - acpi_wakeup_address = (unsigned long)alloc_bootmem_low(PAGE_SIZE); - if (!acpi_wakeup_address) - printk(KERN_ERR "ACPI: Cannot allocate lowmem, S3 disabled.\n"); -} - -static int __init acpi_sleep_setup(char *str) -{ - while ((str != NULL) && (*str != '\0')) { - if (strncmp(str, "s3_bios", 7) == 0) - acpi_video_flags = 1; - if (strncmp(str, "s3_mode", 7) == 0) - acpi_video_flags |= 2; - str = strchr(str, ','); - if (str != NULL) - str += strspn(str, ", \t"); - } - return 1; -} - - -__setup("acpi_sleep=", acpi_sleep_setup); - - -static __init int reset_videomode_after_s3(struct dmi_system_id *d) -{ - acpi_video_flags |= 2; - return 0; -} - -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"), - }, - }, - { } -}; - -static int __init acpisleep_dmi_init(void) -{ - dmi_check_system(acpisleep_dmi_table); - return 0; -} - -core_initcall(acpisleep_dmi_init); diff --git a/arch/i386/kernel/acpi/wakeup.S b/arch/i386/kernel/acpi/wakeup.S deleted file mode 100644 index 44d886c745e..00000000000 --- a/arch/i386/kernel/acpi/wakeup.S +++ /dev/null @@ -1,319 +0,0 @@ -.text -#include <linux/linkage.h> -#include <asm/segment.h> -#include <asm/page.h> - -# -# wakeup_code runs in real mode, and at unknown address (determined at run-time). -# Therefore it must only use relative jumps/calls. -# -# Do we need to deal with A20? It is okay: ACPI specs says A20 must be enabled -# -# If physical address of wakeup_code is 0x12345, BIOS should call us with -# cs = 0x1234, eip = 0x05 -# - -ALIGN - .align 4096 -ENTRY(wakeup_start) -wakeup_code: - wakeup_code_start = . - .code16 - - movw $0xb800, %ax - movw %ax,%fs - movw $0x0e00 + 'L', %fs:(0x10) - - cli - cld - - # setup data segment - movw %cs, %ax - movw %ax, %ds # Make ds:0 point to wakeup_start - movw %ax, %ss - mov $(wakeup_stack - wakeup_code), %sp # Private stack is needed for ASUS board - movw $0x0e00 + 'S', %fs:(0x12) - - pushl $0 # Kill any dangerous flags - popfl - - movl real_magic - wakeup_code, %eax - cmpl $0x12345678, %eax - jne bogus_real_magic - - testl $1, video_flags - wakeup_code - jz 1f - lcall $0xc000,$3 - movw %cs, %ax - movw %ax, %ds # Bios might have played with that - movw %ax, %ss -1: - - testl $2, video_flags - wakeup_code - jz 1f - mov video_mode - wakeup_code, %ax - call mode_set -1: - - # set up page table - movl $swapper_pg_dir-__PAGE_OFFSET, %eax - movl %eax, %cr3 - - testl $1, real_efer_save_restore - wakeup_code - jz 4f - # restore efer setting - movl real_save_efer_edx - wakeup_code, %edx - movl real_save_efer_eax - wakeup_code, %eax - mov $0xc0000080, %ecx - wrmsr -4: - # make sure %cr4 is set correctly (features, etc) - movl real_save_cr4 - wakeup_code, %eax - movl %eax, %cr4 - movw $0xb800, %ax - movw %ax,%fs - movw $0x0e00 + 'i', %fs:(0x12) - - # need a gdt -- use lgdtl to force 32-bit operands, in case - # the GDT is located past 16 megabytes. - lgdtl real_save_gdt - wakeup_code - - movl real_save_cr0 - wakeup_code, %eax - movl %eax, %cr0 - jmp 1f -1: - movw $0x0e00 + 'n', %fs:(0x14) - - movl real_magic - wakeup_code, %eax - cmpl $0x12345678, %eax - jne bogus_real_magic - - ljmpl $__KERNEL_CS,$wakeup_pmode_return - -real_save_gdt: .word 0 - .long 0 -real_save_cr0: .long 0 -real_save_cr3: .long 0 -real_save_cr4: .long 0 -real_magic: .long 0 -video_mode: .long 0 -video_flags: .long 0 -real_efer_save_restore: .long 0 -real_save_efer_edx: .long 0 -real_save_efer_eax: .long 0 - -bogus_real_magic: - movw $0x0e00 + 'B', %fs:(0x12) - jmp bogus_real_magic - -/* This code uses an extended set of video mode numbers. These include: - * Aliases for standard modes - * NORMAL_VGA (-1) - * EXTENDED_VGA (-2) - * ASK_VGA (-3) - * Video modes numbered by menu position -- NOT RECOMMENDED because of lack - * of compatibility when extending the table. These are between 0x00 and 0xff. - */ -#define VIDEO_FIRST_MENU 0x0000 - -/* Standard BIOS video modes (BIOS number + 0x0100) */ -#define VIDEO_FIRST_BIOS 0x0100 - -/* VESA BIOS video modes (VESA number + 0x0200) */ -#define VIDEO_FIRST_VESA 0x0200 - -/* Video7 special modes (BIOS number + 0x0900) */ -#define VIDEO_FIRST_V7 0x0900 - -# Setting of user mode (AX=mode ID) => CF=success -mode_set: - movw %ax, %bx -#if 0 - cmpb $0xff, %ah - jz setalias - - testb $VIDEO_RECALC>>8, %ah - jnz _setrec - - cmpb $VIDEO_FIRST_RESOLUTION>>8, %ah - jnc setres - - cmpb $VIDEO_FIRST_SPECIAL>>8, %ah - jz setspc - - cmpb $VIDEO_FIRST_V7>>8, %ah - jz setv7 -#endif - - cmpb $VIDEO_FIRST_VESA>>8, %ah - jnc check_vesa -#if 0 - orb %ah, %ah - jz setmenu -#endif - - decb %ah -# jz setbios Add bios modes later - -setbad: clc - ret - -check_vesa: - subb $VIDEO_FIRST_VESA>>8, %bh - orw $0x4000, %bx # Use linear frame buffer - movw $0x4f02, %ax # VESA BIOS mode set call - int $0x10 - cmpw $0x004f, %ax # AL=4f if implemented - jnz _setbad # AH=0 if OK - - stc - ret - -_setbad: jmp setbad - - .code32 - ALIGN - -.org 0x800 -wakeup_stack_begin: # Stack grows down - -.org 0xff0 # Just below end of page -wakeup_stack: -ENTRY(wakeup_end) - -.org 0x1000 - -wakeup_pmode_return: - movw $__KERNEL_DS, %ax - movw %ax, %ss - movw %ax, %ds - movw %ax, %es - movw %ax, %fs - movw %ax, %gs - movw $0x0e00 + 'u', 0xb8016 - - # reload the gdt, as we need the full 32 bit address - lgdt saved_gdt - lidt saved_idt - lldt saved_ldt - ljmp $(__KERNEL_CS),$1f -1: - movl %cr3, %eax - movl %eax, %cr3 - wbinvd - - # and restore the stack ... but you need gdt for this to work - movl saved_context_esp, %esp - - movl %cs:saved_magic, %eax - cmpl $0x12345678, %eax - jne bogus_magic - - # jump to place where we left off - movl saved_eip,%eax - jmp *%eax - -bogus_magic: - movw $0x0e00 + 'B', 0xb8018 - jmp bogus_magic - - -## -# acpi_copy_wakeup_routine -# -# Copy the above routine to low memory. -# -# Parameters: -# %eax: place to copy wakeup routine to -# -# Returned address is location of code in low memory (past data and stack) -# -ENTRY(acpi_copy_wakeup_routine) - - sgdt saved_gdt - sidt saved_idt - sldt saved_ldt - str saved_tss - - movl nx_enabled, %edx - movl %edx, real_efer_save_restore - wakeup_start (%eax) - testl $1, real_efer_save_restore - wakeup_start (%eax) - jz 2f - # save efer setting - pushl %eax - movl %eax, %ebx - mov $0xc0000080, %ecx - rdmsr - movl %edx, real_save_efer_edx - wakeup_start (%ebx) - movl %eax, real_save_efer_eax - wakeup_start (%ebx) - popl %eax -2: - - movl %cr3, %edx - movl %edx, real_save_cr3 - wakeup_start (%eax) - movl %cr4, %edx - movl %edx, real_save_cr4 - wakeup_start (%eax) - movl %cr0, %edx - movl %edx, real_save_cr0 - wakeup_start (%eax) - sgdt real_save_gdt - wakeup_start (%eax) - - movl saved_videomode, %edx - movl %edx, video_mode - wakeup_start (%eax) - movl acpi_video_flags, %edx - movl %edx, video_flags - wakeup_start (%eax) - movl $0x12345678, real_magic - wakeup_start (%eax) - movl $0x12345678, saved_magic - ret - -.data -ALIGN -ENTRY(saved_magic) .long 0 -ENTRY(saved_eip) .long 0 - -save_registers: - leal 4(%esp), %eax - movl %eax, saved_context_esp - movl %ebx, saved_context_ebx - movl %ebp, saved_context_ebp - movl %esi, saved_context_esi - movl %edi, saved_context_edi - pushfl ; popl saved_context_eflags - - movl $ret_point, saved_eip - ret - - -restore_registers: - movl saved_context_ebp, %ebp - movl saved_context_ebx, %ebx - movl saved_context_esi, %esi - movl saved_context_edi, %edi - pushl saved_context_eflags ; popfl - ret - -ENTRY(do_suspend_lowlevel) - call save_processor_state - call save_registers - pushl $3 - call acpi_enter_sleep_state - addl $4, %esp - ret - .p2align 4,,7 -ret_point: - call restore_registers - call restore_processor_state - ret - -ENTRY(do_suspend_lowlevel_s4bios) - call save_processor_state - call save_registers - call acpi_enter_sleep_state_s4bios - ret - -ALIGN -# saved registers -saved_gdt: .long 0,0 -saved_idt: .long 0,0 -saved_ldt: .long 0 -saved_tss: .long 0 - |