1 /* 2 * Copyright (C) 1999 VA Linux Systems 3 * Copyright (C) 1999 Walt Drummond <drummond@valinux.com> 4 * Copyright (C) 2000,2001 J.I. Lee <jung-ik.lee@intel.com> 5 * Copyright (C) 2001,2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> 6 * 7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 22 * 23 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 24 */ 25 26 #ifndef _ASM_ACPI_H 27 #define _ASM_ACPI_H 28 29 #ifdef __KERNEL__ 30 31 #include <acpi/pdc_intel.h> 32 33 #include <linux/init.h> 34 #include <linux/numa.h> 35 #include <asm/numa.h> 36 37 #ifdef CONFIG_ACPI 38 extern int acpi_lapic; 39 #define acpi_disabled 0 /* ACPI always enabled on IA64 */ 40 #define acpi_noirq 0 /* ACPI always enabled on IA64 */ 41 #define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */ 42 #define acpi_strict 1 /* no ACPI spec workarounds on IA64 */ 43 44 static inline bool acpi_has_cpu_in_madt(void) 45 { 46 return !!acpi_lapic; 47 } 48 #endif 49 #define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */ 50 static inline void disable_acpi(void) { } 51 52 #ifdef CONFIG_IA64_GENERIC 53 const char *acpi_get_sysname (void); 54 #else 55 static inline const char *acpi_get_sysname (void) 56 { 57 # if defined (CONFIG_IA64_HP_SIM) 58 return "hpsim"; 59 # elif defined (CONFIG_IA64_HP_ZX1) 60 return "hpzx1"; 61 # elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB) 62 return "hpzx1_swiotlb"; 63 # elif defined (CONFIG_IA64_SGI_SN2) 64 return "sn2"; 65 # elif defined (CONFIG_IA64_SGI_UV) 66 return "uv"; 67 # elif defined (CONFIG_IA64_DIG) 68 return "dig"; 69 # elif defined(CONFIG_IA64_DIG_VTD) 70 return "dig_vtd"; 71 # else 72 # error Unknown platform. Fix acpi.c. 73 # endif 74 } 75 #endif 76 int acpi_request_vector (u32 int_type); 77 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 78 79 /* Low-level suspend routine. */ 80 extern int acpi_suspend_lowlevel(void); 81 82 extern unsigned long acpi_wakeup_address; 83 84 /* 85 * Record the cpei override flag and current logical cpu. This is 86 * useful for CPU removal. 87 */ 88 extern unsigned int can_cpei_retarget(void); 89 extern unsigned int is_cpu_cpei_target(unsigned int cpu); 90 extern void set_cpei_target_cpu(unsigned int cpu); 91 extern unsigned int get_cpei_target_cpu(void); 92 extern void prefill_possible_map(void); 93 #ifdef CONFIG_ACPI_HOTPLUG_CPU 94 extern int additional_cpus; 95 #else 96 #define additional_cpus 0 97 #endif 98 99 #ifdef CONFIG_ACPI_NUMA 100 #if MAX_NUMNODES > 256 101 #define MAX_PXM_DOMAINS MAX_NUMNODES 102 #else 103 #define MAX_PXM_DOMAINS (256) 104 #endif 105 extern int pxm_to_nid_map[MAX_PXM_DOMAINS]; 106 extern int __initdata nid_to_pxm_map[MAX_NUMNODES]; 107 #endif 108 109 static inline bool arch_has_acpi_pdc(void) { return true; } 110 static inline void arch_acpi_set_pdc_bits(u32 *buf) 111 { 112 buf[2] |= ACPI_PDC_EST_CAPABILITY_SMP; 113 } 114 115 #ifdef CONFIG_ACPI_NUMA 116 extern cpumask_t early_cpu_possible_map; 117 #define for_each_possible_early_cpu(cpu) \ 118 for_each_cpu((cpu), &early_cpu_possible_map) 119 120 static inline void per_cpu_scan_finalize(int min_cpus, int reserve_cpus) 121 { 122 int low_cpu, high_cpu; 123 int cpu; 124 int next_nid = 0; 125 126 low_cpu = cpumask_weight(&early_cpu_possible_map); 127 128 high_cpu = max(low_cpu, min_cpus); 129 high_cpu = min(high_cpu + reserve_cpus, NR_CPUS); 130 131 for (cpu = low_cpu; cpu < high_cpu; cpu++) { 132 cpumask_set_cpu(cpu, &early_cpu_possible_map); 133 if (node_cpuid[cpu].nid == NUMA_NO_NODE) { 134 node_cpuid[cpu].nid = next_nid; 135 next_nid++; 136 if (next_nid >= num_online_nodes()) 137 next_nid = 0; 138 } 139 } 140 } 141 142 extern void acpi_numa_fixup(void); 143 144 #endif /* CONFIG_ACPI_NUMA */ 145 146 #endif /*__KERNEL__*/ 147 148 #endif /*_ASM_ACPI_H*/ 149