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/*
* Copyright (C) 1999 VA Linux Systems
* Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
* Copyright (C) 2000,2001 J.I. Lee <jung-ik.lee@intel.com>
* Copyright (C) 2001,2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* 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 <linux/init.h>
#include <linux/numa.h>
#include <asm/numa.h>
#define COMPILER_DEPENDENT_INT64 long
#define COMPILER_DEPENDENT_UINT64 unsigned 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_FLUSH_CPU_CACHE()
static inline int
ia64_acpi_acquire_global_lock (unsigned int *lock)
{
unsigned int old, new, val;
do {
old = *lock;
new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1));
val = ia64_cmpxchg4_acq(lock, new, old);
} while (unlikely (val != old));
return (new < 3) ? -1 : 0;
}
static inline int
ia64_acpi_release_global_lock (unsigned int *lock)
{
unsigned int old, new, val;
do {
old = *lock;
new = old & ~0x3;
val = ia64_cmpxchg4_acq(lock, new, old);
} while (unlikely (val != old));
return old & 0x1;
}
#define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
((Acq) = ia64_acpi_acquire_global_lock(&facs->global_lock))
#define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
((Acq) = ia64_acpi_release_global_lock(&facs->global_lock))
#ifdef CONFIG_ACPI
#define acpi_disabled 0 /* ACPI always enabled on IA64 */
#define acpi_noirq 0 /* ACPI always enabled on IA64 */
#define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */
#define acpi_strict 1 /* no ACPI spec workarounds on IA64 */
#endif
#define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
static inline void disable_acpi(void) { }
static inline void pci_acpi_crs_quirks(void) { }
#ifdef CONFIG_IA64_GENERIC
const char *acpi_get_sysname (void);
#else
static inline const char *acpi_get_sysname (void)
{
# if defined (CONFIG_IA64_HP_SIM)
return "hpsim";
# elif defined (CONFIG_IA64_HP_ZX1)
return "hpzx1";
# elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)
return "hpzx1_swiotlb";
# elif defined (CONFIG_IA64_SGI_SN2)
return "sn2";
# elif defined (CONFIG_IA64_SGI_UV)
return "uv";
# elif defined (CONFIG_IA64_DIG)
return "dig";
# elif defined (CONFIG_IA64_XEN_GUEST)
return "xen";
# elif defined(CONFIG_IA64_DIG_VTD)
return "dig_vtd";
# else
# error Unknown platform. Fix acpi.c.
# endif
}
#endif
int acpi_request_vector (u32 int_type);
int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
/* Low-level suspend routine. */
extern int acpi_suspend_lowlevel(void);
extern unsigned long acpi_wakeup_address;
/*
* Record the cpei override flag and current logical cpu. This is
* useful for CPU removal.
*/
extern unsigned int can_cpei_retarget(void);
extern unsigned int is_cpu_cpei_target(unsigned int cpu);
extern void set_cpei_target_cpu(unsigned int cpu);
extern unsigned int get_cpei_target_cpu(void);
extern void prefill_possible_map(void);
#ifdef CONFIG_ACPI_HOTPLUG_CPU
extern int additional_cpus;
#else
#define additional_cpus 0
#endif
#ifdef CONFIG_ACPI_NUMA
#if MAX_NUMNODES > 256
#define MAX_PXM_DOMAINS MAX_NUMNODES
#else
#define MAX_PXM_DOMAINS (256)
#endif
extern int pxm_to_nid_map[MAX_PXM_DOMAINS];
extern int __initdata nid_to_pxm_map[MAX_NUMNODES];
#endif
static inline bool arch_has_acpi_pdc(void) { return true; }
static inline void arch_acpi_set_pdc_bits(u32 *buf)
{
buf[2] |= ACPI_PDC_EST_CAPABILITY_SMP;
}
#define acpi_unlazy_tlb(x)
#ifdef CONFIG_ACPI_NUMA
extern cpumask_t early_cpu_possible_map;
#define for_each_possible_early_cpu(cpu) \
for_each_cpu_mask((cpu), early_cpu_possible_map)
static inline void per_cpu_scan_finalize(int min_cpus, int reserve_cpus)
{
int low_cpu, high_cpu;
int cpu;
int next_nid = 0;
low_cpu = cpus_weight(early_cpu_possible_map);
high_cpu = max(low_cpu, min_cpus);
high_cpu = min(high_cpu + reserve_cpus, NR_CPUS);
for (cpu = low_cpu; cpu < high_cpu; cpu++) {
cpu_set(cpu, early_cpu_possible_map);
if (node_cpuid[cpu].nid == NUMA_NO_NODE) {
node_cpuid[cpu].nid = next_nid;
next_nid++;
if (next_nid >= num_online_nodes())
next_nid = 0;
}
}
}
#endif /* CONFIG_ACPI_NUMA */
#endif /*__KERNEL__*/
#endif /*_ASM_ACPI_H*/
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