189 строки
4.6 KiB
C
189 строки
4.6 KiB
C
/*
|
|
* asm-i386/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
|
|
*
|
|
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
*/
|
|
|
|
#ifndef _ASM_ACPI_H
|
|
#define _ASM_ACPI_H
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#include <acpi/pdc_intel.h>
|
|
|
|
#include <asm/system.h> /* defines cmpxchg */
|
|
|
|
#define COMPILER_DEPENDENT_INT64 long long
|
|
#define COMPILER_DEPENDENT_UINT64 unsigned long long
|
|
|
|
/*
|
|
* Calling conventions:
|
|
*
|
|
* ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads)
|
|
* ACPI_EXTERNAL_XFACE - External ACPI interfaces
|
|
* ACPI_INTERNAL_XFACE - Internal ACPI interfaces
|
|
* ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces
|
|
*/
|
|
#define ACPI_SYSTEM_XFACE
|
|
#define ACPI_EXTERNAL_XFACE
|
|
#define ACPI_INTERNAL_XFACE
|
|
#define ACPI_INTERNAL_VAR_XFACE
|
|
|
|
/* Asm macros */
|
|
|
|
#define ACPI_ASM_MACROS
|
|
#define BREAKPOINT3
|
|
#define ACPI_DISABLE_IRQS() local_irq_disable()
|
|
#define ACPI_ENABLE_IRQS() local_irq_enable()
|
|
#define ACPI_FLUSH_CPU_CACHE() wbinvd()
|
|
|
|
|
|
static inline 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;
|
|
}
|
|
|
|
static inline 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;
|
|
}
|
|
|
|
#define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) \
|
|
((Acq) = __acpi_acquire_global_lock((unsigned int *) GLptr))
|
|
|
|
#define ACPI_RELEASE_GLOBAL_LOCK(GLptr, Acq) \
|
|
((Acq) = __acpi_release_global_lock((unsigned int *) GLptr))
|
|
|
|
/*
|
|
* Math helper asm macros
|
|
*/
|
|
#define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
|
|
asm("divl %2;" \
|
|
:"=a"(q32), "=d"(r32) \
|
|
:"r"(d32), \
|
|
"0"(n_lo), "1"(n_hi))
|
|
|
|
|
|
#define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
|
|
asm("shrl $1,%2;" \
|
|
"rcrl $1,%3;" \
|
|
:"=r"(n_hi), "=r"(n_lo) \
|
|
:"0"(n_hi), "1"(n_lo))
|
|
|
|
#ifdef CONFIG_X86_IO_APIC
|
|
extern void check_acpi_pci(void);
|
|
#else
|
|
static inline void check_acpi_pci(void) { }
|
|
#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_ht;
|
|
extern int acpi_pci_disabled;
|
|
static inline void disable_acpi(void)
|
|
{
|
|
acpi_disabled = 1;
|
|
acpi_ht = 0;
|
|
acpi_pci_disabled = 1;
|
|
acpi_noirq = 1;
|
|
}
|
|
|
|
/* Fixmap pages to reserve for ACPI boot-time tables (see fixmap.h) */
|
|
#define FIX_ACPI_PAGES 4
|
|
|
|
extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq);
|
|
|
|
#ifdef CONFIG_X86_IO_APIC
|
|
extern int skip_ioapic_setup;
|
|
extern int acpi_skip_timer_override;
|
|
|
|
static inline void disable_ioapic_setup(void)
|
|
{
|
|
skip_ioapic_setup = 1;
|
|
}
|
|
|
|
static inline int ioapic_setup_disabled(void)
|
|
{
|
|
return skip_ioapic_setup;
|
|
}
|
|
|
|
#else
|
|
static inline void disable_ioapic_setup(void) { }
|
|
#endif
|
|
|
|
static inline void acpi_noirq_set(void) { acpi_noirq = 1; }
|
|
static inline void acpi_disable_pci(void)
|
|
{
|
|
acpi_pci_disabled = 1;
|
|
acpi_noirq_set();
|
|
}
|
|
extern int acpi_irq_balance_set(char *str);
|
|
|
|
#else /* !CONFIG_ACPI */
|
|
|
|
#define acpi_lapic 0
|
|
#define acpi_ioapic 0
|
|
static inline void acpi_noirq_set(void) { }
|
|
static inline void acpi_disable_pci(void) { }
|
|
|
|
#endif /* !CONFIG_ACPI */
|
|
|
|
|
|
#ifdef CONFIG_ACPI_SLEEP
|
|
|
|
/* routines for saving/restoring kernel state */
|
|
extern int acpi_save_state_mem(void);
|
|
extern void acpi_restore_state_mem(void);
|
|
|
|
extern unsigned long acpi_wakeup_address;
|
|
|
|
/* early initialization routine */
|
|
extern void acpi_reserve_bootmem(void);
|
|
|
|
#endif /*CONFIG_ACPI_SLEEP*/
|
|
|
|
extern u8 x86_acpiid_to_apicid[];
|
|
|
|
#define ARCH_HAS_POWER_INIT 1
|
|
|
|
#endif /*__KERNEL__*/
|
|
|
|
#endif /*_ASM_ACPI_H*/
|