11a59d1b8SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-or-later */ 21965aae3SH. Peter Anvin #ifndef _ASM_X86_ACPI_H 31965aae3SH. Peter Anvin #define _ASM_X86_ACPI_H 4bb898558SAl Viro 5bb898558SAl Viro /* 6bb898558SAl Viro * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> 7bb898558SAl Viro * Copyright (C) 2001 Patrick Mochel <mochel@osdl.org> 8bb898558SAl Viro */ 9bb898558SAl Viro #include <acpi/pdc_intel.h> 10bb898558SAl Viro 11bb898558SAl Viro #include <asm/numa.h> 12bee7f9c8SYinghai Lu #include <asm/fixmap.h> 13bb898558SAl Viro #include <asm/processor.h> 14bb898558SAl Viro #include <asm/mmu.h> 15bb898558SAl Viro #include <asm/mpspec.h> 16038bac2bSJuergen Gross #include <asm/x86_init.h> 17fe0ba8c2SJuergen Gross #include <asm/cpufeature.h> 18bb898558SAl Viro 19b40227fbSJonathan (Zhixiong) Zhang #ifdef CONFIG_ACPI_APEI 20b40227fbSJonathan (Zhixiong) Zhang # include <asm/pgtable_types.h> 21b40227fbSJonathan (Zhixiong) Zhang #endif 22b40227fbSJonathan (Zhixiong) Zhang 23bb898558SAl Viro #ifdef CONFIG_ACPI 24bb898558SAl Viro extern int acpi_lapic; 25bb898558SAl Viro extern int acpi_ioapic; 26bb898558SAl Viro extern int acpi_noirq; 27bb898558SAl Viro extern int acpi_strict; 28bb898558SAl Viro extern int acpi_disabled; 29bb898558SAl Viro extern int acpi_pci_disabled; 30bb898558SAl Viro extern int acpi_skip_timer_override; 31bb898558SAl Viro extern int acpi_use_timer_override; 327f74f8f2SAndreas Herrmann extern int acpi_fix_pin2_polarity; 339ad95879SNaveen N. Rao extern int acpi_disable_cmcff; 34bb898558SAl Viro 35bb898558SAl Viro extern u8 acpi_sci_flags; 364565c4f6SAndy Shevchenko extern u32 acpi_sci_override_gsi; 37bb898558SAl Viro void acpi_pic_sci_set_trigger(unsigned int, u16); 38bb898558SAl Viro 3999da1ffeSIngo Molnar struct device; 4099da1ffeSIngo Molnar 4190f6881eSJeremy Fitzhardinge extern int (*__acpi_register_gsi)(struct device *dev, u32 gsi, 4290f6881eSJeremy Fitzhardinge int trigger, int polarity); 438abb850aSJiang Liu extern void (*__acpi_unregister_gsi)(u32 gsi); 4490f6881eSJeremy Fitzhardinge 45bb898558SAl Viro static inline void disable_acpi(void) 46bb898558SAl Viro { 47bb898558SAl Viro acpi_disabled = 1; 48bb898558SAl Viro acpi_pci_disabled = 1; 49bb898558SAl Viro acpi_noirq = 1; 50bb898558SAl Viro } 51bb898558SAl Viro 52bb898558SAl Viro extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq); 53bb898558SAl Viro 54bb898558SAl Viro static inline void acpi_noirq_set(void) { acpi_noirq = 1; } 55bb898558SAl Viro static inline void acpi_disable_pci(void) 56bb898558SAl Viro { 57bb898558SAl Viro acpi_pci_disabled = 1; 58bb898558SAl Viro acpi_noirq_set(); 59bb898558SAl Viro } 60bb898558SAl Viro 61f1a2003eSRafael J. Wysocki /* Low-level suspend routine. */ 62d6a77eadSKonrad Rzeszutek Wilk extern int (*acpi_suspend_lowlevel)(void); 63bb898558SAl Viro 64319b6ffcSH. Peter Anvin /* Physical address to resume after wakeup */ 6596078642SSean Christopherson unsigned long acpi_get_wakeup_address(void); 66bb898558SAl Viro 67fe0ba8c2SJuergen Gross static inline bool acpi_skip_set_wakeup_address(void) 68fe0ba8c2SJuergen Gross { 69fe0ba8c2SJuergen Gross return cpu_feature_enabled(X86_FEATURE_XENPV); 70fe0ba8c2SJuergen Gross } 71fe0ba8c2SJuergen Gross 72fe0ba8c2SJuergen Gross #define acpi_skip_set_wakeup_address acpi_skip_set_wakeup_address 73fe0ba8c2SJuergen Gross 74bb898558SAl Viro /* 75bb898558SAl Viro * Check if the CPU can handle C2 and deeper 76bb898558SAl Viro */ 77bb898558SAl Viro static inline unsigned int acpi_processor_cstate_check(unsigned int max_cstate) 78bb898558SAl Viro { 79bb898558SAl Viro /* 80bb898558SAl Viro * Early models (<=5) of AMD Opterons are not supposed to go into 81bb898558SAl Viro * C2 state. 82bb898558SAl Viro * 83bb898558SAl Viro * Steppings 0x0A and later are good 84bb898558SAl Viro */ 85bb898558SAl Viro if (boot_cpu_data.x86 == 0x0F && 86bb898558SAl Viro boot_cpu_data.x86_vendor == X86_VENDOR_AMD && 87bb898558SAl Viro boot_cpu_data.x86_model <= 0x05 && 88b399151cSJia Zhang boot_cpu_data.x86_stepping < 0x0A) 89bb898558SAl Viro return 1; 9007c94a38SBorislav Petkov else if (boot_cpu_has(X86_BUG_AMD_APIC_C1E)) 91bb898558SAl Viro return 1; 92bb898558SAl Viro else 93bb898558SAl Viro return max_cstate; 94bb898558SAl Viro } 95bb898558SAl Viro 961d9cb470SAlex Chiang static inline bool arch_has_acpi_pdc(void) 971d9cb470SAlex Chiang { 981d9cb470SAlex Chiang struct cpuinfo_x86 *c = &cpu_data(0); 991d9cb470SAlex Chiang return (c->x86_vendor == X86_VENDOR_INTEL || 1001d9cb470SAlex Chiang c->x86_vendor == X86_VENDOR_CENTAUR); 1011d9cb470SAlex Chiang } 1021d9cb470SAlex Chiang 103*c5e4d05dSMichal Wilczynski static inline void arch_acpi_set_proc_cap_bits(u32 *cap) 1046c5807d7SAlex Chiang { 1056c5807d7SAlex Chiang struct cpuinfo_x86 *c = &cpu_data(0); 1066c5807d7SAlex Chiang 107*c5e4d05dSMichal Wilczynski *cap |= ACPI_PDC_C_CAPABILITY_SMP; 1086c5807d7SAlex Chiang 1096c5807d7SAlex Chiang if (cpu_has(c, X86_FEATURE_EST)) 110*c5e4d05dSMichal Wilczynski *cap |= ACPI_PDC_EST_CAPABILITY_SWSMP; 1116c5807d7SAlex Chiang 1126c5807d7SAlex Chiang if (cpu_has(c, X86_FEATURE_ACPI)) 113*c5e4d05dSMichal Wilczynski *cap |= ACPI_PDC_T_FFH; 1146c5807d7SAlex Chiang 1156c5807d7SAlex Chiang /* 1166c5807d7SAlex Chiang * If mwait/monitor is unsupported, C2/C3_FFH will be disabled 1176c5807d7SAlex Chiang */ 1186c5807d7SAlex Chiang if (!cpu_has(c, X86_FEATURE_MWAIT)) 119*c5e4d05dSMichal Wilczynski *cap &= ~(ACPI_PDC_C_C2C3_FFH); 1206c5807d7SAlex Chiang } 1216c5807d7SAlex Chiang 122b50154d5SGraeme Gregory static inline bool acpi_has_cpu_in_madt(void) 123b50154d5SGraeme Gregory { 124b50154d5SGraeme Gregory return !!acpi_lapic; 125b50154d5SGraeme Gregory } 126b50154d5SGraeme Gregory 12741fa1ee9SJosh Boyer #define ACPI_HAVE_ARCH_SET_ROOT_POINTER 12841fa1ee9SJosh Boyer static inline void acpi_arch_set_root_pointer(u64 addr) 12941fa1ee9SJosh Boyer { 13041fa1ee9SJosh Boyer x86_init.acpi.set_root_pointer(addr); 13141fa1ee9SJosh Boyer } 13241fa1ee9SJosh Boyer 133038bac2bSJuergen Gross #define ACPI_HAVE_ARCH_GET_ROOT_POINTER 134038bac2bSJuergen Gross static inline u64 acpi_arch_get_root_pointer(void) 135038bac2bSJuergen Gross { 136038bac2bSJuergen Gross return x86_init.acpi.get_root_pointer(); 137038bac2bSJuergen Gross } 138038bac2bSJuergen Gross 13950beba07SAndy Shevchenko void acpi_generic_reduced_hw_init(void); 14050beba07SAndy Shevchenko 14141fa1ee9SJosh Boyer void x86_default_set_root_pointer(u64 addr); 142e7b66d16SJuergen Gross u64 x86_default_get_root_pointer(void); 143e7b66d16SJuergen Gross 144bb898558SAl Viro #else /* !CONFIG_ACPI */ 145bb898558SAl Viro 146bb898558SAl Viro #define acpi_lapic 0 147bb898558SAl Viro #define acpi_ioapic 0 1489ad95879SNaveen N. Rao #define acpi_disable_cmcff 0 149bb898558SAl Viro static inline void acpi_noirq_set(void) { } 150bb898558SAl Viro static inline void acpi_disable_pci(void) { } 151bb898558SAl Viro static inline void disable_acpi(void) { } 152bb898558SAl Viro 15350beba07SAndy Shevchenko static inline void acpi_generic_reduced_hw_init(void) { } 15450beba07SAndy Shevchenko 15541fa1ee9SJosh Boyer static inline void x86_default_set_root_pointer(u64 addr) { } 15641fa1ee9SJosh Boyer 157e7b66d16SJuergen Gross static inline u64 x86_default_get_root_pointer(void) 158e7b66d16SJuergen Gross { 159e7b66d16SJuergen Gross return 0; 160e7b66d16SJuergen Gross } 161e7b66d16SJuergen Gross 162bb898558SAl Viro #endif /* !CONFIG_ACPI */ 163bb898558SAl Viro 164bb898558SAl Viro #define ARCH_HAS_POWER_INIT 1 165bb898558SAl Viro 166bb898558SAl Viro #ifdef CONFIG_ACPI_NUMA 167a9aec56aSTejun Heo extern int x86_acpi_numa_init(void); 1684e76f4e6SDavid Rientjes #endif /* CONFIG_ACPI_NUMA */ 169bb898558SAl Viro 1704a24d80bSSmita Koralahalli struct cper_ia_proc_ctx; 1714a24d80bSSmita Koralahalli 172b40227fbSJonathan (Zhixiong) Zhang #ifdef CONFIG_ACPI_APEI 173b40227fbSJonathan (Zhixiong) Zhang static inline pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr) 174b40227fbSJonathan (Zhixiong) Zhang { 175b40227fbSJonathan (Zhixiong) Zhang /* 176b40227fbSJonathan (Zhixiong) Zhang * We currently have no way to look up the EFI memory map 177b40227fbSJonathan (Zhixiong) Zhang * attributes for a region in a consistent way, because the 178b40227fbSJonathan (Zhixiong) Zhang * memmap is discarded after efi_free_boot_services(). So if 179b40227fbSJonathan (Zhixiong) Zhang * you call efi_mem_attributes() during boot and at runtime, 180b40227fbSJonathan (Zhixiong) Zhang * you could theoretically see different attributes. 181b40227fbSJonathan (Zhixiong) Zhang * 18257bd1905STom Lendacky * We are yet to see any x86 platforms that require anything 18357bd1905STom Lendacky * other than PAGE_KERNEL (some ARM64 platforms require the 18457bd1905STom Lendacky * equivalent of PAGE_KERNEL_NOCACHE). Additionally, if SME 18557bd1905STom Lendacky * is active, the ACPI information will not be encrypted, 18657bd1905STom Lendacky * so return PAGE_KERNEL_NOENC until we know differently. 187b40227fbSJonathan (Zhixiong) Zhang */ 18857bd1905STom Lendacky return PAGE_KERNEL_NOENC; 189b40227fbSJonathan (Zhixiong) Zhang } 1904a24d80bSSmita Koralahalli 1914a24d80bSSmita Koralahalli int arch_apei_report_x86_error(struct cper_ia_proc_ctx *ctx_info, 1924a24d80bSSmita Koralahalli u64 lapic_id); 1934a24d80bSSmita Koralahalli #else 1944a24d80bSSmita Koralahalli static inline int arch_apei_report_x86_error(struct cper_ia_proc_ctx *ctx_info, 1954a24d80bSSmita Koralahalli u64 lapic_id) 1964a24d80bSSmita Koralahalli { 1974a24d80bSSmita Koralahalli return -EINVAL; 1984a24d80bSSmita Koralahalli } 199b40227fbSJonathan (Zhixiong) Zhang #endif 200b40227fbSJonathan (Zhixiong) Zhang 20184b06ca3SAleksey Makarov #define ACPI_TABLE_UPGRADE_MAX_PHYS (max_low_pfn_mapped << PAGE_SHIFT) 20284b06ca3SAleksey Makarov 2031965aae3SH. Peter Anvin #endif /* _ASM_X86_ACPI_H */ 204