0,0 → 1,170 |
#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> |
|
#ifdef CONFIG_ACPI_APEI |
# include <asm/pgtable_types.h> |
#endif |
|
#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) |
|
#ifdef CONFIG_ACPI_APEI |
static inline pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr) |
{ |
/* |
* We currently have no way to look up the EFI memory map |
* attributes for a region in a consistent way, because the |
* memmap is discarded after efi_free_boot_services(). So if |
* you call efi_mem_attributes() during boot and at runtime, |
* you could theoretically see different attributes. |
* |
* Since we are yet to see any x86 platforms that require |
* anything other than PAGE_KERNEL (some arm64 platforms |
* require the equivalent of PAGE_KERNEL_NOCACHE), return that |
* until we know differently. |
*/ |
return PAGE_KERNEL; |
} |
#endif |
|
#endif /* _ASM_X86_ACPI_H */ |