189 lines
5 KiB
C
Executable file
189 lines
5 KiB
C
Executable file
#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>
|
|
#include <asm/x86_init.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 u32 acpi_sci_override_gsi;
|
|
void acpi_pic_sci_set_trigger(unsigned int, u16);
|
|
|
|
struct device;
|
|
|
|
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_stepping < 0x0A)
|
|
return 1;
|
|
else if (boot_cpu_has(X86_BUG_AMD_APIC_C1E))
|
|
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;
|
|
}
|
|
|
|
#define ACPI_HAVE_ARCH_GET_ROOT_POINTER
|
|
static inline u64 acpi_arch_get_root_pointer(void)
|
|
{
|
|
return x86_init.acpi.get_root_pointer();
|
|
}
|
|
|
|
void acpi_generic_reduced_hw_init(void);
|
|
|
|
#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) { }
|
|
|
|
static inline void acpi_generic_reduced_hw_init(void) { }
|
|
|
|
#endif /* !CONFIG_ACPI */
|
|
|
|
#define ARCH_HAS_POWER_INIT 1
|
|
|
|
#ifdef CONFIG_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.
|
|
*
|
|
* 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). Additionally, if SME
|
|
* is active, the ACPI information will not be encrypted,
|
|
* so return PAGE_KERNEL_NOENC until we know differently.
|
|
*/
|
|
return PAGE_KERNEL_NOENC;
|
|
}
|
|
#endif
|
|
|
|
#define ACPI_TABLE_UPGRADE_MAX_PHYS (max_low_pfn_mapped << PAGE_SHIFT)
|
|
|
|
#endif /* _ASM_X86_ACPI_H */
|