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 13*e38abdabSArd Biesheuvel #include <linux/efi.h> 14bb898558SAl Viro #include <linux/rtc.h> 15bb898558SAl Viro 16bb898558SAl Viro /* 17bb898558SAl Viro * Values for the BIOS calls. It is passed as the first * argument in the 18bb898558SAl Viro * BIOS call. Passing any other value in the first argument will result 19bb898558SAl Viro * in a BIOS_STATUS_UNIMPLEMENTED return status. 20bb898558SAl Viro */ 21bb898558SAl Viro enum uv_bios_cmd { 22bb898558SAl Viro UV_BIOS_COMMON, 23bb898558SAl Viro UV_BIOS_GET_SN_INFO, 2464ccf2f9SRuss Anderson UV_BIOS_FREQ_BASE, 2564ccf2f9SRuss Anderson UV_BIOS_WATCHLIST_ALLOC, 26e8929c8aSRuss Anderson UV_BIOS_WATCHLIST_FREE, 2723c35700SRuss Anderson UV_BIOS_MEMPROTECT, 28841582eaSMike Travis UV_BIOS_GET_PARTITION_ADDR, 29841582eaSMike Travis UV_BIOS_SET_LEGACY_VGA_TARGET 30bb898558SAl Viro }; 31bb898558SAl Viro 329a3c425cSJustin Ernst #define UV_BIOS_EXTRA 0x10000 339a3c425cSJustin Ernst #define UV_BIOS_GET_PCI_TOPOLOGY 0x10001 349a3c425cSJustin Ernst #define UV_BIOS_GET_GEOINFO 0x10003 359a3c425cSJustin Ernst 369a3c425cSJustin Ernst #define UV_BIOS_EXTRA_OP_MEM_COPYIN 0x1000 379a3c425cSJustin Ernst #define UV_BIOS_EXTRA_OP_MEM_COPYOUT 0x2000 389a3c425cSJustin Ernst #define UV_BIOS_EXTRA_OP_MASK 0x0fff 399a3c425cSJustin Ernst #define UV_BIOS_EXTRA_GET_HEAPSIZE 1 409a3c425cSJustin Ernst #define UV_BIOS_EXTRA_INSTALL_HEAP 2 419a3c425cSJustin Ernst #define UV_BIOS_EXTRA_MASTER_NASID 3 429a3c425cSJustin Ernst #define UV_BIOS_EXTRA_OBJECT_COUNT (10|UV_BIOS_EXTRA_OP_MEM_COPYOUT) 439a3c425cSJustin Ernst #define UV_BIOS_EXTRA_ENUM_OBJECTS (12|UV_BIOS_EXTRA_OP_MEM_COPYOUT) 449a3c425cSJustin Ernst #define UV_BIOS_EXTRA_ENUM_PORTS (13|UV_BIOS_EXTRA_OP_MEM_COPYOUT) 459a3c425cSJustin Ernst 46bb898558SAl Viro /* 47bb898558SAl Viro * Status values returned from a BIOS call. 48bb898558SAl Viro */ 49bb898558SAl Viro enum { 5023c35700SRuss Anderson BIOS_STATUS_MORE_PASSES = 1, 51bb898558SAl Viro BIOS_STATUS_SUCCESS = 0, 52bb898558SAl Viro BIOS_STATUS_UNIMPLEMENTED = -ENOSYS, 53bb898558SAl Viro BIOS_STATUS_EINVAL = -EINVAL, 54f331e766SHedi Berriche BIOS_STATUS_UNAVAIL = -EBUSY, 55f331e766SHedi Berriche BIOS_STATUS_ABORT = -EINTR, 56bb898558SAl Viro }; 57bb898558SAl Viro 58ef93bf80SMike Travis /* Address map parameters */ 59ef93bf80SMike Travis struct uv_gam_parameters { 60ef93bf80SMike Travis u64 mmr_base; 61ef93bf80SMike Travis u64 gru_base; 62ef93bf80SMike Travis u8 mmr_shift; /* Convert PNode to MMR space offset */ 63ef93bf80SMike Travis u8 gru_shift; /* Convert PNode to GRU space offset */ 64ef93bf80SMike Travis u8 gpa_shift; /* Size of offset field in GRU phys addr */ 65ef93bf80SMike Travis u8 unused1; 66ef93bf80SMike Travis }; 67ef93bf80SMike Travis 68ef93bf80SMike Travis /* UV_TABLE_GAM_RANGE_ENTRY values */ 69ef93bf80SMike Travis #define UV_GAM_RANGE_TYPE_UNUSED 0 /* End of table */ 70ef93bf80SMike Travis #define UV_GAM_RANGE_TYPE_RAM 1 /* Normal RAM */ 71ef93bf80SMike Travis #define UV_GAM_RANGE_TYPE_NVRAM 2 /* Non-volatile memory */ 72ef93bf80SMike Travis #define UV_GAM_RANGE_TYPE_NV_WINDOW 3 /* NVMDIMM block window */ 73ef93bf80SMike Travis #define UV_GAM_RANGE_TYPE_NV_MAILBOX 4 /* NVMDIMM mailbox */ 74ef93bf80SMike Travis #define UV_GAM_RANGE_TYPE_HOLE 5 /* Unused address range */ 75ef93bf80SMike Travis #define UV_GAM_RANGE_TYPE_MAX 6 76ef93bf80SMike Travis 77ef93bf80SMike Travis /* The structure stores PA bits 56:26, for 64MB granularity */ 78ef93bf80SMike Travis #define UV_GAM_RANGE_SHFT 26 /* 64MB */ 79ef93bf80SMike Travis 80ef93bf80SMike Travis struct uv_gam_range_entry { 81ef93bf80SMike Travis char type; /* Entry type: GAM_RANGE_TYPE_UNUSED, etc. */ 82ef93bf80SMike Travis char unused1; 83ef93bf80SMike Travis u16 nasid; /* HNasid */ 84ef93bf80SMike Travis u16 sockid; /* Socket ID, high bits of APIC ID */ 85ef93bf80SMike Travis u16 pnode; /* Index to MMR and GRU spaces */ 8622ac2bcaSMike Travis u32 unused2; 87ef93bf80SMike Travis u32 limit; /* PA bits 56:26 (UV_GAM_RANGE_SHFT) */ 88ef93bf80SMike Travis }; 89ef93bf80SMike Travis 901e61f5a9SMike Travis #define UV_AT_SIZE 8 /* 7 character arch type + NULL char */ 911e61f5a9SMike Travis struct uv_arch_type_entry { 921e61f5a9SMike Travis char archtype[UV_AT_SIZE]; 931e61f5a9SMike Travis }; 941e61f5a9SMike Travis 95ef93bf80SMike Travis #define UV_SYSTAB_SIG "UVST" 965d662537Ssteve.wahl@hpe.com #define UV_SYSTAB_VERSION_1 1 /* UV2/3 BIOS version */ 97ef93bf80SMike Travis #define UV_SYSTAB_VERSION_UV4 0x400 /* UV4 BIOS base version */ 98ef93bf80SMike Travis #define UV_SYSTAB_VERSION_UV4_1 0x401 /* + gpa_shift */ 99ef93bf80SMike Travis #define UV_SYSTAB_VERSION_UV4_2 0x402 /* + TYPE_NVRAM/WINDOW/MBOX */ 10022ac2bcaSMike Travis #define UV_SYSTAB_VERSION_UV4_3 0x403 /* - GAM Range PXM Value */ 10122ac2bcaSMike Travis #define UV_SYSTAB_VERSION_UV4_LATEST UV_SYSTAB_VERSION_UV4_3 102ef93bf80SMike Travis 1031e61f5a9SMike Travis #define UV_SYSTAB_VERSION_UV5 0x500 /* UV5 GAM base version */ 1041e61f5a9SMike Travis #define UV_SYSTAB_VERSION_UV5_LATEST UV_SYSTAB_VERSION_UV5 1051e61f5a9SMike Travis 106ef93bf80SMike Travis #define UV_SYSTAB_TYPE_UNUSED 0 /* End of table (offset == 0) */ 107ef93bf80SMike Travis #define UV_SYSTAB_TYPE_GAM_PARAMS 1 /* GAM PARAM conversions */ 108ef93bf80SMike Travis #define UV_SYSTAB_TYPE_GAM_RNG_TBL 2 /* GAM entry table */ 1091e61f5a9SMike Travis #define UV_SYSTAB_TYPE_ARCH_TYPE 3 /* UV arch type */ 1101e61f5a9SMike Travis #define UV_SYSTAB_TYPE_MAX 4 111ef93bf80SMike Travis 112bb898558SAl Viro /* 113bb898558SAl Viro * The UV system table describes specific firmware 114bb898558SAl Viro * capabilities available to the Linux kernel at runtime. 115bb898558SAl Viro */ 116bb898558SAl Viro struct uv_systab { 117ef93bf80SMike Travis char signature[4]; /* must be UV_SYSTAB_SIG */ 118bb898558SAl Viro u32 revision; /* distinguish different firmware revs */ 119*e38abdabSArd Biesheuvel u64 (__efiapi *function)(enum uv_bios_cmd, ...); 120*e38abdabSArd Biesheuvel /* BIOS runtime callback function ptr */ 121ef93bf80SMike Travis u32 size; /* systab size (starting with _VERSION_UV4) */ 122ef93bf80SMike Travis struct { 123ef93bf80SMike Travis u32 type:8; /* type of entry */ 124ef93bf80SMike Travis u32 offset:24; /* byte offset from struct start to entry */ 125ef93bf80SMike Travis } entry[1]; /* additional entries follow */ 126bb898558SAl Viro }; 127ef93bf80SMike Travis extern struct uv_systab *uv_systab; 1289a3c425cSJustin Ernst 1299a3c425cSJustin Ernst #define UV_BIOS_MAXSTRING 128 1309a3c425cSJustin Ernst struct uv_bios_hub_info { 1319a3c425cSJustin Ernst unsigned int id; 1329a3c425cSJustin Ernst union { 1339a3c425cSJustin Ernst struct { 1349a3c425cSJustin Ernst unsigned long long this_part:1; 1359a3c425cSJustin Ernst unsigned long long is_shared:1; 1369a3c425cSJustin Ernst unsigned long long is_disabled:1; 1379a3c425cSJustin Ernst } fields; 1389a3c425cSJustin Ernst struct { 1399a3c425cSJustin Ernst unsigned long long flags; 1409a3c425cSJustin Ernst unsigned long long reserved; 1419a3c425cSJustin Ernst } b; 1429a3c425cSJustin Ernst } f; 1439a3c425cSJustin Ernst char name[UV_BIOS_MAXSTRING]; 1449a3c425cSJustin Ernst char location[UV_BIOS_MAXSTRING]; 1459a3c425cSJustin Ernst unsigned int ports; 1469a3c425cSJustin Ernst }; 1479a3c425cSJustin Ernst 1489a3c425cSJustin Ernst struct uv_bios_port_info { 1499a3c425cSJustin Ernst unsigned int port; 1509a3c425cSJustin Ernst unsigned int conn_id; 1519a3c425cSJustin Ernst unsigned int conn_port; 1529a3c425cSJustin Ernst }; 1539a3c425cSJustin Ernst 154ef93bf80SMike Travis /* (... end of definitions from UV BIOS ...) */ 155bb898558SAl Viro 156bb898558SAl Viro enum { 157bb898558SAl Viro BIOS_FREQ_BASE_PLATFORM = 0, 158bb898558SAl Viro BIOS_FREQ_BASE_INTERVAL_TIMER = 1, 159bb898558SAl Viro BIOS_FREQ_BASE_REALTIME_CLOCK = 2 160bb898558SAl Viro }; 161bb898558SAl Viro 162bb898558SAl Viro union partition_info_u { 163bb898558SAl Viro u64 val; 164bb898558SAl Viro struct { 165bb898558SAl Viro u64 hub_version : 8, 166bb898558SAl Viro partition_id : 16, 167bb898558SAl Viro coherence_id : 16, 168bb898558SAl Viro region_size : 24; 169bb898558SAl Viro }; 170bb898558SAl Viro }; 171bb898558SAl Viro 172e8929c8aSRuss Anderson enum uv_memprotect { 173e8929c8aSRuss Anderson UV_MEMPROT_RESTRICT_ACCESS, 174e8929c8aSRuss Anderson UV_MEMPROT_ALLOW_AMO, 175e8929c8aSRuss Anderson UV_MEMPROT_ALLOW_RW 176e8929c8aSRuss Anderson }; 177e8929c8aSRuss Anderson 178b76365a1SRuss Anderson extern s64 uv_bios_get_sn_info(int, int *, long *, long *, long *, long *); 179bb898558SAl Viro extern s64 uv_bios_freq_base(u64, u64 *); 180c2c9f115SRobin Holt extern int uv_bios_mq_watchlist_alloc(unsigned long, unsigned int, 18164ccf2f9SRuss Anderson unsigned long *); 18264ccf2f9SRuss Anderson extern int uv_bios_mq_watchlist_free(int, int); 183e8929c8aSRuss Anderson extern s64 uv_bios_change_memprotect(u64, u64, enum uv_memprotect); 18423c35700SRuss Anderson extern s64 uv_bios_reserved_page_pa(u64, u64 *, u64 *, u64 *); 185841582eaSMike Travis extern int uv_bios_set_legacy_vga_target(bool decode, int domain, int bus); 186bb898558SAl Viro 1879a3c425cSJustin Ernst extern s64 uv_bios_get_master_nasid(u64 sz, u64 *nasid); 1889a3c425cSJustin Ernst extern s64 uv_bios_get_heapsize(u64 nasid, u64 sz, u64 *heap_sz); 1899a3c425cSJustin Ernst extern s64 uv_bios_install_heap(u64 nasid, u64 sz, u64 *heap); 1909a3c425cSJustin Ernst extern s64 uv_bios_obj_count(u64 nasid, u64 sz, u64 *objcnt); 1919a3c425cSJustin Ernst extern s64 uv_bios_enum_objs(u64 nasid, u64 sz, u64 *objbuf); 1929a3c425cSJustin Ernst extern s64 uv_bios_enum_ports(u64 nasid, u64 obj_id, u64 sz, u64 *portbuf); 1939a3c425cSJustin Ernst extern s64 uv_bios_get_geoinfo(u64 nasid, u64 sz, u64 *geo); 1949a3c425cSJustin Ernst extern s64 uv_bios_get_pci_topology(u64 sz, u64 *buf); 1959a3c425cSJustin Ernst 1969743cb68SMike Travis extern int uv_bios_init(void); 1971e61f5a9SMike Travis extern unsigned long get_uv_systab_phys(bool msg); 198bb898558SAl Viro 19964ccf2f9SRuss Anderson extern unsigned long sn_rtc_cycles_per_second; 200bb898558SAl Viro extern int uv_type; 201bb898558SAl Viro extern long sn_partition_id; 2025292ae11SIngo Molnar extern long sn_coherency_id; 2035292ae11SIngo Molnar extern long sn_region_size; 204b76365a1SRuss Anderson extern long system_serial_number; 205a67fffb0SMike Travis extern ssize_t uv_get_archtype(char *buf, int len); 206a67fffb0SMike Travis extern int uv_get_hubless_system(void); 207bb898558SAl Viro 208bb898558SAl Viro extern struct kobject *sgi_uv_kobj; /* /sys/firmware/sgi_uv */ 209bb898558SAl Viro 210f331e766SHedi Berriche /* 211f331e766SHedi Berriche * EFI runtime lock; cf. firmware/efi/runtime-wrappers.c for details 212f331e766SHedi Berriche */ 213f331e766SHedi Berriche extern struct semaphore __efi_uv_runtime_lock; 214f331e766SHedi Berriche 21505e4d316SH. Peter Anvin #endif /* _ASM_X86_UV_BIOS_H */ 216