root/include/asm-x86/acpi.h

INCLUDED FROM

DEFINITIONS

1. disable_acpi
2. acpi_noirq_set
3. acpi_disable_pci
4. acpi_processor_cstate_check
5. acpi_noirq_set
6. acpi_disable_pci
7. disable_acpi
8. acpi_fake_nodes

#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/processor.h>
#include <asm/mmu.h>
#include <asm/mpspec.h>

#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()

int __acpi_acquire_global_lock(unsigned int *lock);
int __acpi_release_global_lock(unsigned int *lock);

#define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
        ((Acq) = __acpi_acquire_global_lock(&facs->global_lock))

#define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
        ((Acq) = __acpi_release_global_lock(&facs->global_lock))

/*
 * 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_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;
extern int acpi_skip_timer_override;
extern int acpi_use_timer_override;

extern u8 acpi_sci_flags;
extern int acpi_sci_override_gsi;
void acpi_pic_sci_set_trigger(unsigned int, u16);

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);

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);

/* 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);

/*
 * 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 (boot_cpu_has(X86_FEATURE_AMDC1E))
                return 1;
        else
                return max_cstate;
}

#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) { }
static inline void disable_acpi(void) { }

#endif /* !CONFIG_ACPI */

#define ARCH_HAS_POWER_INIT     1

struct bootnode;

#ifdef CONFIG_ACPI_NUMA
extern int acpi_numa;
extern int acpi_scan_nodes(unsigned long start, unsigned long end);
#define NR_NODE_MEMBLKS (MAX_NUMNODES*2)
extern void acpi_fake_nodes(const struct bootnode *fake_nodes,
                                   int num_nodes);
#else
static inline void acpi_fake_nodes(const struct bootnode *fake_nodes,
                                   int num_nodes)
{
}
#endif

#define acpi_unlazy_tlb(x)      leave_mm(x)

#endif /* ASM_X86__ACPI_H */