diff options
Diffstat (limited to 'arch/x86/include/asm/acpi.h')
| -rw-r--r-- | arch/x86/include/asm/acpi.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h new file mode 100644 index 000000000..3a45668f6 --- /dev/null +++ b/arch/x86/include/asm/acpi.h @@ -0,0 +1,150 @@ +#ifndef _ASM_X86_ACPI_H +#define _ASM_X86_ACPI_H + +/* + * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> + * Copyright (C) 2001 Patrick Mochel <mochel@osdl.org> + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * 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 <acpi/pdc_intel.h> + +#include <asm/numa.h> +#include <asm/fixmap.h> +#include <asm/processor.h> +#include <asm/mmu.h> +#include <asm/mpspec.h> +#include <asm/realmode.h> + +#ifdef CONFIG_ACPI +extern int acpi_lapic; +extern int acpi_ioapic; +extern int acpi_noirq; +extern int acpi_strict; +extern int acpi_disabled; +extern int acpi_pci_disabled; +extern int acpi_skip_timer_override; +extern int acpi_use_timer_override; +extern int acpi_fix_pin2_polarity; +extern int acpi_disable_cmcff; + +extern u8 acpi_sci_flags; +extern int acpi_sci_override_gsi; +void acpi_pic_sci_set_trigger(unsigned int, u16); + +extern int (*__acpi_register_gsi)(struct device *dev, u32 gsi, + int trigger, int polarity); +extern void (*__acpi_unregister_gsi)(u32 gsi); + +static inline void disable_acpi(void) +{ + acpi_disabled = 1; + acpi_pci_disabled = 1; + acpi_noirq = 1; +} + +extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq); + +static inline void acpi_noirq_set(void) { acpi_noirq = 1; } +static inline void acpi_disable_pci(void) +{ + acpi_pci_disabled = 1; + acpi_noirq_set(); +} + +/* Low-level suspend routine. */ +extern int (*acpi_suspend_lowlevel)(void); + +/* Physical address to resume after wakeup */ +#define acpi_wakeup_address ((unsigned long)(real_mode_header->wakeup_start)) + +/* + * Check if the CPU can handle C2 and deeper + */ +static inline unsigned int acpi_processor_cstate_check(unsigned int max_cstate) +{ + /* + * Early models (<=5) of AMD Opterons are not supposed to go into + * C2 state. + * + * Steppings 0x0A and later are good + */ + if (boot_cpu_data.x86 == 0x0F && + boot_cpu_data.x86_vendor == X86_VENDOR_AMD && + boot_cpu_data.x86_model <= 0x05 && + boot_cpu_data.x86_mask < 0x0A) + return 1; + else if (amd_e400_c1e_detected) + return 1; + else + return max_cstate; +} + +static inline bool arch_has_acpi_pdc(void) +{ + struct cpuinfo_x86 *c = &cpu_data(0); + return (c->x86_vendor == X86_VENDOR_INTEL || + c->x86_vendor == X86_VENDOR_CENTAUR); +} + +static inline void arch_acpi_set_pdc_bits(u32 *buf) +{ + struct cpuinfo_x86 *c = &cpu_data(0); + + buf[2] |= ACPI_PDC_C_CAPABILITY_SMP; + + if (cpu_has(c, X86_FEATURE_EST)) + buf[2] |= ACPI_PDC_EST_CAPABILITY_SWSMP; + + if (cpu_has(c, X86_FEATURE_ACPI)) + buf[2] |= ACPI_PDC_T_FFH; + + /* + * If mwait/monitor is unsupported, C2/C3_FFH will be disabled + */ + if (!cpu_has(c, X86_FEATURE_MWAIT)) + buf[2] &= ~(ACPI_PDC_C_C2C3_FFH); +} + +static inline bool acpi_has_cpu_in_madt(void) +{ + return !!acpi_lapic; +} + +#else /* !CONFIG_ACPI */ + +#define acpi_lapic 0 +#define acpi_ioapic 0 +#define acpi_disable_cmcff 0 +static inline void acpi_noirq_set(void) { } +static inline void acpi_disable_pci(void) { } +static inline void disable_acpi(void) { } + +#endif /* !CONFIG_ACPI */ + +#define ARCH_HAS_POWER_INIT 1 + +#ifdef CONFIG_ACPI_NUMA +extern int acpi_numa; +extern int x86_acpi_numa_init(void); +#endif /* CONFIG_ACPI_NUMA */ + +#define acpi_unlazy_tlb(x) leave_mm(x) + +#endif /* _ASM_X86_ACPI_H */ |