11a59d1b8SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-or-later */ 205e4d316SH. Peter Anvin #ifndef _ASM_X86_UV_BIOS_H 305e4d316SH. Peter Anvin #define _ASM_X86_UV_BIOS_H 4bb898558SAl Viro 5bb898558SAl Viro /* 6bb898558SAl Viro * UV BIOS layer definitions. 7bb898558SAl Viro * 87a6d94f0SMike Travis * (C) Copyright 2020 Hewlett Packard Enterprise Development LP 91e61f5a9SMike Travis * Copyright (C) 2007-2017 Silicon Graphics, Inc. All rights reserved. 10b76365a1SRuss Anderson * Copyright (c) Russ Anderson <rja@sgi.com> 11bb898558SAl Viro */ 12bb898558SAl Viro 13bb898558SAl Viro #include <linux/rtc.h> 14bb898558SAl Viro 15bb898558SAl Viro /* 16bb898558SAl Viro * Values for the BIOS calls. It is passed as the first * argument in the 17bb898558SAl Viro * BIOS call. Passing any other value in the first argument will result 18bb898558SAl Viro * in a BIOS_STATUS_UNIMPLEMENTED return status. 19bb898558SAl Viro */ 20bb898558SAl Viro enum uv_bios_cmd { 21bb898558SAl Viro UV_BIOS_COMMON, 22bb898558SAl Viro UV_BIOS_GET_SN_INFO, 2364ccf2f9SRuss Anderson UV_BIOS_FREQ_BASE, 2464ccf2f9SRuss Anderson UV_BIOS_WATCHLIST_ALLOC, 25e8929c8aSRuss Anderson UV_BIOS_WATCHLIST_FREE, 2623c35700SRuss Anderson UV_BIOS_MEMPROTECT, 27841582eaSMike Travis UV_BIOS_GET_PARTITION_ADDR, 28841582eaSMike Travis UV_BIOS_SET_LEGACY_VGA_TARGET 29bb898558SAl Viro }; 30bb898558SAl Viro 31bb898558SAl Viro /* 32bb898558SAl Viro * Status values returned from a BIOS call. 33bb898558SAl Viro */ 34bb898558SAl Viro enum { 3523c35700SRuss Anderson BIOS_STATUS_MORE_PASSES = 1, 36bb898558SAl Viro BIOS_STATUS_SUCCESS = 0, 37bb898558SAl Viro BIOS_STATUS_UNIMPLEMENTED = -ENOSYS, 38bb898558SAl Viro BIOS_STATUS_EINVAL = -EINVAL, 39f331e766SHedi Berriche BIOS_STATUS_UNAVAIL = -EBUSY, 40f331e766SHedi Berriche BIOS_STATUS_ABORT = -EINTR, 41bb898558SAl Viro }; 42bb898558SAl Viro 43ef93bf80SMike Travis /* Address map parameters */ 44ef93bf80SMike Travis struct uv_gam_parameters { 45ef93bf80SMike Travis u64 mmr_base; 46ef93bf80SMike Travis u64 gru_base; 47ef93bf80SMike Travis u8 mmr_shift; /* Convert PNode to MMR space offset */ 48ef93bf80SMike Travis u8 gru_shift; /* Convert PNode to GRU space offset */ 49ef93bf80SMike Travis u8 gpa_shift; /* Size of offset field in GRU phys addr */ 50ef93bf80SMike Travis u8 unused1; 51ef93bf80SMike Travis }; 52ef93bf80SMike Travis 53ef93bf80SMike Travis /* UV_TABLE_GAM_RANGE_ENTRY values */ 54ef93bf80SMike Travis #define UV_GAM_RANGE_TYPE_UNUSED 0 /* End of table */ 55ef93bf80SMike Travis #define UV_GAM_RANGE_TYPE_RAM 1 /* Normal RAM */ 56ef93bf80SMike Travis #define UV_GAM_RANGE_TYPE_NVRAM 2 /* Non-volatile memory */ 57ef93bf80SMike Travis #define UV_GAM_RANGE_TYPE_NV_WINDOW 3 /* NVMDIMM block window */ 58ef93bf80SMike Travis #define UV_GAM_RANGE_TYPE_NV_MAILBOX 4 /* NVMDIMM mailbox */ 59ef93bf80SMike Travis #define UV_GAM_RANGE_TYPE_HOLE 5 /* Unused address range */ 60ef93bf80SMike Travis #define UV_GAM_RANGE_TYPE_MAX 6 61ef93bf80SMike Travis 62ef93bf80SMike Travis /* The structure stores PA bits 56:26, for 64MB granularity */ 63ef93bf80SMike Travis #define UV_GAM_RANGE_SHFT 26 /* 64MB */ 64ef93bf80SMike Travis 65ef93bf80SMike Travis struct uv_gam_range_entry { 66ef93bf80SMike Travis char type; /* Entry type: GAM_RANGE_TYPE_UNUSED, etc. */ 67ef93bf80SMike Travis char unused1; 68ef93bf80SMike Travis u16 nasid; /* HNasid */ 69ef93bf80SMike Travis u16 sockid; /* Socket ID, high bits of APIC ID */ 70ef93bf80SMike Travis u16 pnode; /* Index to MMR and GRU spaces */ 7122ac2bcaSMike Travis u32 unused2; 72ef93bf80SMike Travis u32 limit; /* PA bits 56:26 (UV_GAM_RANGE_SHFT) */ 73ef93bf80SMike Travis }; 74ef93bf80SMike Travis 751e61f5a9SMike Travis #define UV_AT_SIZE 8 /* 7 character arch type + NULL char */ 761e61f5a9SMike Travis struct uv_arch_type_entry { 771e61f5a9SMike Travis char archtype[UV_AT_SIZE]; 781e61f5a9SMike Travis }; 791e61f5a9SMike Travis 80ef93bf80SMike Travis #define UV_SYSTAB_SIG "UVST" 815d662537Ssteve.wahl@hpe.com #define UV_SYSTAB_VERSION_1 1 /* UV2/3 BIOS version */ 82ef93bf80SMike Travis #define UV_SYSTAB_VERSION_UV4 0x400 /* UV4 BIOS base version */ 83ef93bf80SMike Travis #define UV_SYSTAB_VERSION_UV4_1 0x401 /* + gpa_shift */ 84ef93bf80SMike Travis #define UV_SYSTAB_VERSION_UV4_2 0x402 /* + TYPE_NVRAM/WINDOW/MBOX */ 8522ac2bcaSMike Travis #define UV_SYSTAB_VERSION_UV4_3 0x403 /* - GAM Range PXM Value */ 8622ac2bcaSMike Travis #define UV_SYSTAB_VERSION_UV4_LATEST UV_SYSTAB_VERSION_UV4_3 87ef93bf80SMike Travis 881e61f5a9SMike Travis #define UV_SYSTAB_VERSION_UV5 0x500 /* UV5 GAM base version */ 891e61f5a9SMike Travis #define UV_SYSTAB_VERSION_UV5_LATEST UV_SYSTAB_VERSION_UV5 901e61f5a9SMike Travis 91ef93bf80SMike Travis #define UV_SYSTAB_TYPE_UNUSED 0 /* End of table (offset == 0) */ 92ef93bf80SMike Travis #define UV_SYSTAB_TYPE_GAM_PARAMS 1 /* GAM PARAM conversions */ 93ef93bf80SMike Travis #define UV_SYSTAB_TYPE_GAM_RNG_TBL 2 /* GAM entry table */ 941e61f5a9SMike Travis #define UV_SYSTAB_TYPE_ARCH_TYPE 3 /* UV arch type */ 951e61f5a9SMike Travis #define UV_SYSTAB_TYPE_MAX 4 96ef93bf80SMike Travis 97bb898558SAl Viro /* 98bb898558SAl Viro * The UV system table describes specific firmware 99bb898558SAl Viro * capabilities available to the Linux kernel at runtime. 100bb898558SAl Viro */ 101bb898558SAl Viro struct uv_systab { 102ef93bf80SMike Travis char signature[4]; /* must be UV_SYSTAB_SIG */ 103bb898558SAl Viro u32 revision; /* distinguish different firmware revs */ 104bb898558SAl Viro u64 function; /* BIOS runtime callback function ptr */ 105ef93bf80SMike Travis u32 size; /* systab size (starting with _VERSION_UV4) */ 106ef93bf80SMike Travis struct { 107ef93bf80SMike Travis u32 type:8; /* type of entry */ 108ef93bf80SMike Travis u32 offset:24; /* byte offset from struct start to entry */ 109ef93bf80SMike Travis } entry[1]; /* additional entries follow */ 110bb898558SAl Viro }; 111ef93bf80SMike Travis extern struct uv_systab *uv_systab; 112ef93bf80SMike Travis /* (... end of definitions from UV BIOS ...) */ 113bb898558SAl Viro 114bb898558SAl Viro enum { 115bb898558SAl Viro BIOS_FREQ_BASE_PLATFORM = 0, 116bb898558SAl Viro BIOS_FREQ_BASE_INTERVAL_TIMER = 1, 117bb898558SAl Viro BIOS_FREQ_BASE_REALTIME_CLOCK = 2 118bb898558SAl Viro }; 119bb898558SAl Viro 120bb898558SAl Viro union partition_info_u { 121bb898558SAl Viro u64 val; 122bb898558SAl Viro struct { 123bb898558SAl Viro u64 hub_version : 8, 124bb898558SAl Viro partition_id : 16, 125bb898558SAl Viro coherence_id : 16, 126bb898558SAl Viro region_size : 24; 127bb898558SAl Viro }; 128bb898558SAl Viro }; 129bb898558SAl Viro 130e8929c8aSRuss Anderson enum uv_memprotect { 131e8929c8aSRuss Anderson UV_MEMPROT_RESTRICT_ACCESS, 132e8929c8aSRuss Anderson UV_MEMPROT_ALLOW_AMO, 133e8929c8aSRuss Anderson UV_MEMPROT_ALLOW_RW 134e8929c8aSRuss Anderson }; 135e8929c8aSRuss Anderson 136b76365a1SRuss Anderson extern s64 uv_bios_get_sn_info(int, int *, long *, long *, long *, long *); 137bb898558SAl Viro extern s64 uv_bios_freq_base(u64, u64 *); 138c2c9f115SRobin Holt extern int uv_bios_mq_watchlist_alloc(unsigned long, unsigned int, 13964ccf2f9SRuss Anderson unsigned long *); 14064ccf2f9SRuss Anderson extern int uv_bios_mq_watchlist_free(int, int); 141e8929c8aSRuss Anderson extern s64 uv_bios_change_memprotect(u64, u64, enum uv_memprotect); 14223c35700SRuss Anderson extern s64 uv_bios_reserved_page_pa(u64, u64 *, u64 *, u64 *); 143841582eaSMike Travis extern int uv_bios_set_legacy_vga_target(bool decode, int domain, int bus); 144bb898558SAl Viro 1459743cb68SMike Travis extern int uv_bios_init(void); 1461e61f5a9SMike Travis extern unsigned long get_uv_systab_phys(bool msg); 147bb898558SAl Viro 14864ccf2f9SRuss Anderson extern unsigned long sn_rtc_cycles_per_second; 149bb898558SAl Viro extern int uv_type; 150bb898558SAl Viro extern long sn_partition_id; 1515292ae11SIngo Molnar extern long sn_coherency_id; 1525292ae11SIngo Molnar extern long sn_region_size; 153b76365a1SRuss Anderson extern long system_serial_number; 154bb898558SAl Viro 155bb898558SAl Viro extern struct kobject *sgi_uv_kobj; /* /sys/firmware/sgi_uv */ 156bb898558SAl Viro 157f331e766SHedi Berriche /* 158f331e766SHedi Berriche * EFI runtime lock; cf. firmware/efi/runtime-wrappers.c for details 159f331e766SHedi Berriche */ 160f331e766SHedi Berriche extern struct semaphore __efi_uv_runtime_lock; 161f331e766SHedi Berriche 16205e4d316SH. Peter Anvin #endif /* _ASM_X86_UV_BIOS_H */ 163