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> 29bee7f9c8SYinghai Lu #include <asm/fixmap.h> 30bb898558SAl Viro #include <asm/processor.h> 31bb898558SAl Viro #include <asm/mmu.h> 32bb898558SAl Viro #include <asm/mpspec.h> 33319b6ffcSH. Peter Anvin #include <asm/realmode.h> 34bb898558SAl Viro 35b40227fbSJonathan (Zhixiong) Zhang #ifdef CONFIG_ACPI_APEI 36b40227fbSJonathan (Zhixiong) Zhang # include <asm/pgtable_types.h> 37b40227fbSJonathan (Zhixiong) Zhang #endif 38b40227fbSJonathan (Zhixiong) Zhang 39bb898558SAl Viro #ifdef CONFIG_ACPI 40bb898558SAl Viro extern int acpi_lapic; 41bb898558SAl Viro extern int acpi_ioapic; 42bb898558SAl Viro extern int acpi_noirq; 43bb898558SAl Viro extern int acpi_strict; 44bb898558SAl Viro extern int acpi_disabled; 45bb898558SAl Viro extern int acpi_pci_disabled; 46bb898558SAl Viro extern int acpi_skip_timer_override; 47bb898558SAl Viro extern int acpi_use_timer_override; 487f74f8f2SAndreas Herrmann extern int acpi_fix_pin2_polarity; 499ad95879SNaveen N. Rao extern int acpi_disable_cmcff; 50bb898558SAl Viro 51bb898558SAl Viro extern u8 acpi_sci_flags; 52bb898558SAl Viro extern int acpi_sci_override_gsi; 53bb898558SAl Viro void acpi_pic_sci_set_trigger(unsigned int, u16); 54bb898558SAl Viro 5599da1ffeSIngo Molnar struct device; 5699da1ffeSIngo Molnar 5790f6881eSJeremy Fitzhardinge extern int (*__acpi_register_gsi)(struct device *dev, u32 gsi, 5890f6881eSJeremy Fitzhardinge int trigger, int polarity); 598abb850aSJiang Liu extern void (*__acpi_unregister_gsi)(u32 gsi); 6090f6881eSJeremy Fitzhardinge 61bb898558SAl Viro static inline void disable_acpi(void) 62bb898558SAl Viro { 63bb898558SAl Viro acpi_disabled = 1; 64bb898558SAl Viro acpi_pci_disabled = 1; 65bb898558SAl Viro acpi_noirq = 1; 66bb898558SAl Viro } 67bb898558SAl Viro 68bb898558SAl Viro extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq); 69bb898558SAl Viro 70bb898558SAl Viro static inline void acpi_noirq_set(void) { acpi_noirq = 1; } 71bb898558SAl Viro static inline void acpi_disable_pci(void) 72bb898558SAl Viro { 73bb898558SAl Viro acpi_pci_disabled = 1; 74bb898558SAl Viro acpi_noirq_set(); 75bb898558SAl Viro } 76bb898558SAl Viro 77f1a2003eSRafael J. Wysocki /* Low-level suspend routine. */ 78d6a77eadSKonrad Rzeszutek Wilk extern int (*acpi_suspend_lowlevel)(void); 79bb898558SAl Viro 80319b6ffcSH. Peter Anvin /* Physical address to resume after wakeup */ 81319b6ffcSH. Peter Anvin #define acpi_wakeup_address ((unsigned long)(real_mode_header->wakeup_start)) 82bb898558SAl Viro 83bb898558SAl Viro /* 84bb898558SAl Viro * Check if the CPU can handle C2 and deeper 85bb898558SAl Viro */ 86bb898558SAl Viro static inline unsigned int acpi_processor_cstate_check(unsigned int max_cstate) 87bb898558SAl Viro { 88bb898558SAl Viro /* 89bb898558SAl Viro * Early models (<=5) of AMD Opterons are not supposed to go into 90bb898558SAl Viro * C2 state. 91bb898558SAl Viro * 92bb898558SAl Viro * Steppings 0x0A and later are good 93bb898558SAl Viro */ 94bb898558SAl Viro if (boot_cpu_data.x86 == 0x0F && 95bb898558SAl Viro boot_cpu_data.x86_vendor == X86_VENDOR_AMD && 96bb898558SAl Viro boot_cpu_data.x86_model <= 0x05 && 97bb898558SAl Viro boot_cpu_data.x86_mask < 0x0A) 98bb898558SAl Viro return 1; 9907c94a38SBorislav Petkov else if (boot_cpu_has(X86_BUG_AMD_APIC_C1E)) 100bb898558SAl Viro return 1; 101bb898558SAl Viro else 102bb898558SAl Viro return max_cstate; 103bb898558SAl Viro } 104bb898558SAl Viro 1051d9cb470SAlex Chiang static inline bool arch_has_acpi_pdc(void) 1061d9cb470SAlex Chiang { 1071d9cb470SAlex Chiang struct cpuinfo_x86 *c = &cpu_data(0); 1081d9cb470SAlex Chiang return (c->x86_vendor == X86_VENDOR_INTEL || 1091d9cb470SAlex Chiang c->x86_vendor == X86_VENDOR_CENTAUR); 1101d9cb470SAlex Chiang } 1111d9cb470SAlex Chiang 1126c5807d7SAlex Chiang static inline void arch_acpi_set_pdc_bits(u32 *buf) 1136c5807d7SAlex Chiang { 1146c5807d7SAlex Chiang struct cpuinfo_x86 *c = &cpu_data(0); 1156c5807d7SAlex Chiang 1166c5807d7SAlex Chiang buf[2] |= ACPI_PDC_C_CAPABILITY_SMP; 1176c5807d7SAlex Chiang 1186c5807d7SAlex Chiang if (cpu_has(c, X86_FEATURE_EST)) 1196c5807d7SAlex Chiang buf[2] |= ACPI_PDC_EST_CAPABILITY_SWSMP; 1206c5807d7SAlex Chiang 1216c5807d7SAlex Chiang if (cpu_has(c, X86_FEATURE_ACPI)) 1226c5807d7SAlex Chiang buf[2] |= ACPI_PDC_T_FFH; 1236c5807d7SAlex Chiang 1246c5807d7SAlex Chiang /* 1256c5807d7SAlex Chiang * If mwait/monitor is unsupported, C2/C3_FFH will be disabled 1266c5807d7SAlex Chiang */ 1276c5807d7SAlex Chiang if (!cpu_has(c, X86_FEATURE_MWAIT)) 1286c5807d7SAlex Chiang buf[2] &= ~(ACPI_PDC_C_C2C3_FFH); 1296c5807d7SAlex Chiang } 1306c5807d7SAlex Chiang 131b50154d5SGraeme Gregory static inline bool acpi_has_cpu_in_madt(void) 132b50154d5SGraeme Gregory { 133b50154d5SGraeme Gregory return !!acpi_lapic; 134b50154d5SGraeme Gregory } 135b50154d5SGraeme Gregory 136bb898558SAl Viro #else /* !CONFIG_ACPI */ 137bb898558SAl Viro 138bb898558SAl Viro #define acpi_lapic 0 139bb898558SAl Viro #define acpi_ioapic 0 1409ad95879SNaveen N. Rao #define acpi_disable_cmcff 0 141bb898558SAl Viro static inline void acpi_noirq_set(void) { } 142bb898558SAl Viro static inline void acpi_disable_pci(void) { } 143bb898558SAl Viro static inline void disable_acpi(void) { } 144bb898558SAl Viro 145bb898558SAl Viro #endif /* !CONFIG_ACPI */ 146bb898558SAl Viro 147bb898558SAl Viro #define ARCH_HAS_POWER_INIT 1 148bb898558SAl Viro 149bb898558SAl Viro #ifdef CONFIG_ACPI_NUMA 150a9aec56aSTejun Heo extern int x86_acpi_numa_init(void); 1514e76f4e6SDavid Rientjes #endif /* CONFIG_ACPI_NUMA */ 152bb898558SAl Viro 153b40227fbSJonathan (Zhixiong) Zhang #ifdef CONFIG_ACPI_APEI 154b40227fbSJonathan (Zhixiong) Zhang static inline pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr) 155b40227fbSJonathan (Zhixiong) Zhang { 156b40227fbSJonathan (Zhixiong) Zhang /* 157b40227fbSJonathan (Zhixiong) Zhang * We currently have no way to look up the EFI memory map 158b40227fbSJonathan (Zhixiong) Zhang * attributes for a region in a consistent way, because the 159b40227fbSJonathan (Zhixiong) Zhang * memmap is discarded after efi_free_boot_services(). So if 160b40227fbSJonathan (Zhixiong) Zhang * you call efi_mem_attributes() during boot and at runtime, 161b40227fbSJonathan (Zhixiong) Zhang * you could theoretically see different attributes. 162b40227fbSJonathan (Zhixiong) Zhang * 16357bd1905STom Lendacky * We are yet to see any x86 platforms that require anything 16457bd1905STom Lendacky * other than PAGE_KERNEL (some ARM64 platforms require the 16557bd1905STom Lendacky * equivalent of PAGE_KERNEL_NOCACHE). Additionally, if SME 16657bd1905STom Lendacky * is active, the ACPI information will not be encrypted, 16757bd1905STom Lendacky * so return PAGE_KERNEL_NOENC until we know differently. 168b40227fbSJonathan (Zhixiong) Zhang */ 16957bd1905STom Lendacky return PAGE_KERNEL_NOENC; 170b40227fbSJonathan (Zhixiong) Zhang } 171b40227fbSJonathan (Zhixiong) Zhang #endif 172b40227fbSJonathan (Zhixiong) Zhang 17384b06ca3SAleksey Makarov #define ACPI_TABLE_UPGRADE_MAX_PHYS (max_low_pfn_mapped << PAGE_SHIFT) 17484b06ca3SAleksey Makarov 1751965aae3SH. Peter Anvin #endif /* _ASM_X86_ACPI_H */ 176