11965aae3SH. Peter Anvin #ifndef _ASM_X86_ACPI_H 21965aae3SH. Peter Anvin #define _ASM_X86_ACPI_H 3bb898558SAl Viro 4bb898558SAl Viro /* 5bb898558SAl Viro * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> 6bb898558SAl Viro * Copyright (C) 2001 Patrick Mochel <mochel@osdl.org> 7bb898558SAl Viro * 8bb898558SAl Viro * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 9bb898558SAl Viro * 10bb898558SAl Viro * This program is free software; you can redistribute it and/or modify 11bb898558SAl Viro * it under the terms of the GNU General Public License as published by 12bb898558SAl Viro * the Free Software Foundation; either version 2 of the License, or 13bb898558SAl Viro * (at your option) any later version. 14bb898558SAl Viro * 15bb898558SAl Viro * This program is distributed in the hope that it will be useful, 16bb898558SAl Viro * but WITHOUT ANY WARRANTY; without even the implied warranty of 17bb898558SAl Viro * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18bb898558SAl Viro * GNU General Public License for more details. 19bb898558SAl Viro * 20bb898558SAl Viro * You should have received a copy of the GNU General Public License 21bb898558SAl Viro * along with this program; if not, write to the Free Software 22bb898558SAl Viro * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 23bb898558SAl Viro * 24bb898558SAl Viro * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 25bb898558SAl Viro */ 26bb898558SAl Viro #include <acpi/pdc_intel.h> 27bb898558SAl Viro 28bb898558SAl Viro #include <asm/numa.h> 29bb898558SAl Viro #include <asm/processor.h> 30bb898558SAl Viro #include <asm/mmu.h> 31bb898558SAl Viro #include <asm/mpspec.h> 32bb898558SAl Viro 33bb898558SAl Viro #define COMPILER_DEPENDENT_INT64 long long 34bb898558SAl Viro #define COMPILER_DEPENDENT_UINT64 unsigned long long 35bb898558SAl Viro 36bb898558SAl Viro /* 37bb898558SAl Viro * Calling conventions: 38bb898558SAl Viro * 39bb898558SAl Viro * ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads) 40bb898558SAl Viro * ACPI_EXTERNAL_XFACE - External ACPI interfaces 41bb898558SAl Viro * ACPI_INTERNAL_XFACE - Internal ACPI interfaces 42bb898558SAl Viro * ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces 43bb898558SAl Viro */ 44bb898558SAl Viro #define ACPI_SYSTEM_XFACE 45bb898558SAl Viro #define ACPI_EXTERNAL_XFACE 46bb898558SAl Viro #define ACPI_INTERNAL_XFACE 47bb898558SAl Viro #define ACPI_INTERNAL_VAR_XFACE 48bb898558SAl Viro 49bb898558SAl Viro /* Asm macros */ 50bb898558SAl Viro 51bb898558SAl Viro #define ACPI_ASM_MACROS 52bb898558SAl Viro #define BREAKPOINT3 53bb898558SAl Viro #define ACPI_DISABLE_IRQS() local_irq_disable() 54bb898558SAl Viro #define ACPI_ENABLE_IRQS() local_irq_enable() 55bb898558SAl Viro #define ACPI_FLUSH_CPU_CACHE() wbinvd() 56bb898558SAl Viro 57bb898558SAl Viro int __acpi_acquire_global_lock(unsigned int *lock); 58bb898558SAl Viro int __acpi_release_global_lock(unsigned int *lock); 59bb898558SAl Viro 60bb898558SAl Viro #define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \ 61bb898558SAl Viro ((Acq) = __acpi_acquire_global_lock(&facs->global_lock)) 62bb898558SAl Viro 63bb898558SAl Viro #define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \ 64bb898558SAl Viro ((Acq) = __acpi_release_global_lock(&facs->global_lock)) 65bb898558SAl Viro 66bb898558SAl Viro /* 67bb898558SAl Viro * Math helper asm macros 68bb898558SAl Viro */ 69bb898558SAl Viro #define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \ 70bb898558SAl Viro asm("divl %2;" \ 71bb898558SAl Viro : "=a"(q32), "=d"(r32) \ 72bb898558SAl Viro : "r"(d32), \ 73bb898558SAl Viro "0"(n_lo), "1"(n_hi)) 74bb898558SAl Viro 75bb898558SAl Viro 76bb898558SAl Viro #define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \ 77bb898558SAl Viro asm("shrl $1,%2 ;" \ 78bb898558SAl Viro "rcrl $1,%3;" \ 79bb898558SAl Viro : "=r"(n_hi), "=r"(n_lo) \ 80bb898558SAl Viro : "0"(n_hi), "1"(n_lo)) 81bb898558SAl Viro 82bb898558SAl Viro #ifdef CONFIG_ACPI 83bb898558SAl Viro extern int acpi_lapic; 84bb898558SAl Viro extern int acpi_ioapic; 85bb898558SAl Viro extern int acpi_noirq; 86bb898558SAl Viro extern int acpi_strict; 87bb898558SAl Viro extern int acpi_disabled; 88bb898558SAl Viro extern int acpi_pci_disabled; 89bb898558SAl Viro extern int acpi_skip_timer_override; 90bb898558SAl Viro extern int acpi_use_timer_override; 917f74f8f2SAndreas Herrmann extern int acpi_fix_pin2_polarity; 92bb898558SAl Viro 93bb898558SAl Viro extern u8 acpi_sci_flags; 94bb898558SAl Viro extern int acpi_sci_override_gsi; 95bb898558SAl Viro void acpi_pic_sci_set_trigger(unsigned int, u16); 96bb898558SAl Viro 9790f6881eSJeremy Fitzhardinge extern int (*__acpi_register_gsi)(struct device *dev, u32 gsi, 9890f6881eSJeremy Fitzhardinge int trigger, int polarity); 9990f6881eSJeremy Fitzhardinge 100bb898558SAl Viro static inline void disable_acpi(void) 101bb898558SAl Viro { 102bb898558SAl Viro acpi_disabled = 1; 103bb898558SAl Viro acpi_pci_disabled = 1; 104bb898558SAl Viro acpi_noirq = 1; 105bb898558SAl Viro } 106bb898558SAl Viro 107bb898558SAl Viro extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq); 108bb898558SAl Viro 109bb898558SAl Viro static inline void acpi_noirq_set(void) { acpi_noirq = 1; } 110bb898558SAl Viro static inline void acpi_disable_pci(void) 111bb898558SAl Viro { 112bb898558SAl Viro acpi_pci_disabled = 1; 113bb898558SAl Viro acpi_noirq_set(); 114bb898558SAl Viro } 115bb898558SAl Viro 116bb898558SAl Viro /* routines for saving/restoring kernel state */ 117bb898558SAl Viro extern int acpi_save_state_mem(void); 118bb898558SAl Viro extern void acpi_restore_state_mem(void); 119bb898558SAl Viro 120bb898558SAl Viro extern unsigned long acpi_wakeup_address; 121bb898558SAl Viro 122bb898558SAl Viro /* early initialization routine */ 123196cf0d6SYinghai Lu extern void acpi_reserve_wakeup_memory(void); 124bb898558SAl Viro 125bb898558SAl Viro /* 126bb898558SAl Viro * Check if the CPU can handle C2 and deeper 127bb898558SAl Viro */ 128bb898558SAl Viro static inline unsigned int acpi_processor_cstate_check(unsigned int max_cstate) 129bb898558SAl Viro { 130bb898558SAl Viro /* 131bb898558SAl Viro * Early models (<=5) of AMD Opterons are not supposed to go into 132bb898558SAl Viro * C2 state. 133bb898558SAl Viro * 134bb898558SAl Viro * Steppings 0x0A and later are good 135bb898558SAl Viro */ 136bb898558SAl Viro if (boot_cpu_data.x86 == 0x0F && 137bb898558SAl Viro boot_cpu_data.x86_vendor == X86_VENDOR_AMD && 138bb898558SAl Viro boot_cpu_data.x86_model <= 0x05 && 139bb898558SAl Viro boot_cpu_data.x86_mask < 0x0A) 140bb898558SAl Viro return 1; 141e8c534ecSMichal Schmidt else if (c1e_detected) 142bb898558SAl Viro return 1; 143bb898558SAl Viro else 144bb898558SAl Viro return max_cstate; 145bb898558SAl Viro } 146bb898558SAl Viro 1471d9cb470SAlex Chiang static inline bool arch_has_acpi_pdc(void) 1481d9cb470SAlex Chiang { 1491d9cb470SAlex Chiang struct cpuinfo_x86 *c = &cpu_data(0); 1501d9cb470SAlex Chiang return (c->x86_vendor == X86_VENDOR_INTEL || 1511d9cb470SAlex Chiang c->x86_vendor == X86_VENDOR_CENTAUR); 1521d9cb470SAlex Chiang } 1531d9cb470SAlex Chiang 1546c5807d7SAlex Chiang static inline void arch_acpi_set_pdc_bits(u32 *buf) 1556c5807d7SAlex Chiang { 1566c5807d7SAlex Chiang struct cpuinfo_x86 *c = &cpu_data(0); 1576c5807d7SAlex Chiang 1586c5807d7SAlex Chiang buf[2] |= ACPI_PDC_C_CAPABILITY_SMP; 1596c5807d7SAlex Chiang 1606c5807d7SAlex Chiang if (cpu_has(c, X86_FEATURE_EST)) 1616c5807d7SAlex Chiang buf[2] |= ACPI_PDC_EST_CAPABILITY_SWSMP; 1626c5807d7SAlex Chiang 1636c5807d7SAlex Chiang if (cpu_has(c, X86_FEATURE_ACPI)) 1646c5807d7SAlex Chiang buf[2] |= ACPI_PDC_T_FFH; 1656c5807d7SAlex Chiang 1666c5807d7SAlex Chiang /* 1676c5807d7SAlex Chiang * If mwait/monitor is unsupported, C2/C3_FFH will be disabled 1686c5807d7SAlex Chiang */ 1696c5807d7SAlex Chiang if (!cpu_has(c, X86_FEATURE_MWAIT)) 1706c5807d7SAlex Chiang buf[2] &= ~(ACPI_PDC_C_C2C3_FFH); 1716c5807d7SAlex Chiang } 1726c5807d7SAlex Chiang 173bb898558SAl Viro #else /* !CONFIG_ACPI */ 174bb898558SAl Viro 175bb898558SAl Viro #define acpi_lapic 0 176bb898558SAl Viro #define acpi_ioapic 0 177bb898558SAl Viro static inline void acpi_noirq_set(void) { } 178bb898558SAl Viro static inline void acpi_disable_pci(void) { } 179bb898558SAl Viro static inline void disable_acpi(void) { } 180bb898558SAl Viro 181bb898558SAl Viro #endif /* !CONFIG_ACPI */ 182bb898558SAl Viro 183bb898558SAl Viro #define ARCH_HAS_POWER_INIT 1 184bb898558SAl Viro 185bb898558SAl Viro struct bootnode; 186bb898558SAl Viro 187bb898558SAl Viro #ifdef CONFIG_ACPI_NUMA 188bb898558SAl Viro extern int acpi_numa; 189a387e95aSDavid Rientjes extern void acpi_get_nodes(struct bootnode *physnodes, unsigned long start, 190a387e95aSDavid Rientjes unsigned long end); 191bb898558SAl Viro extern int acpi_scan_nodes(unsigned long start, unsigned long end); 192bb898558SAl Viro #define NR_NODE_MEMBLKS (MAX_NUMNODES*2) 1934e76f4e6SDavid Rientjes 1944e76f4e6SDavid Rientjes #ifdef CONFIG_NUMA_EMU 195bb898558SAl Viro extern void acpi_fake_nodes(const struct bootnode *fake_nodes, 196bb898558SAl Viro int num_nodes); 1974e76f4e6SDavid Rientjes #endif 1984e76f4e6SDavid Rientjes #endif /* CONFIG_ACPI_NUMA */ 199bb898558SAl Viro 200bb898558SAl Viro #define acpi_unlazy_tlb(x) leave_mm(x) 201bb898558SAl Viro 2021965aae3SH. Peter Anvin #endif /* _ASM_X86_ACPI_H */ 203