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213 lines
6.5 KiB
213 lines
6.5 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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#ifndef _ASM_X86_UV_BIOS_H |
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#define _ASM_X86_UV_BIOS_H |
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/* |
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* UV BIOS layer definitions. |
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* |
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* (C) Copyright 2020 Hewlett Packard Enterprise Development LP |
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* Copyright (C) 2007-2017 Silicon Graphics, Inc. All rights reserved. |
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* Copyright (c) Russ Anderson <[email protected]> |
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*/ |
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#include <linux/rtc.h> |
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/* |
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* Values for the BIOS calls. It is passed as the first * argument in the |
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* BIOS call. Passing any other value in the first argument will result |
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* in a BIOS_STATUS_UNIMPLEMENTED return status. |
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*/ |
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enum uv_bios_cmd { |
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UV_BIOS_COMMON, |
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UV_BIOS_GET_SN_INFO, |
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UV_BIOS_FREQ_BASE, |
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UV_BIOS_WATCHLIST_ALLOC, |
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UV_BIOS_WATCHLIST_FREE, |
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UV_BIOS_MEMPROTECT, |
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UV_BIOS_GET_PARTITION_ADDR, |
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UV_BIOS_SET_LEGACY_VGA_TARGET |
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}; |
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#define UV_BIOS_EXTRA 0x10000 |
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#define UV_BIOS_GET_PCI_TOPOLOGY 0x10001 |
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#define UV_BIOS_GET_GEOINFO 0x10003 |
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#define UV_BIOS_EXTRA_OP_MEM_COPYIN 0x1000 |
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#define UV_BIOS_EXTRA_OP_MEM_COPYOUT 0x2000 |
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#define UV_BIOS_EXTRA_OP_MASK 0x0fff |
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#define UV_BIOS_EXTRA_GET_HEAPSIZE 1 |
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#define UV_BIOS_EXTRA_INSTALL_HEAP 2 |
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#define UV_BIOS_EXTRA_MASTER_NASID 3 |
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#define UV_BIOS_EXTRA_OBJECT_COUNT (10|UV_BIOS_EXTRA_OP_MEM_COPYOUT) |
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#define UV_BIOS_EXTRA_ENUM_OBJECTS (12|UV_BIOS_EXTRA_OP_MEM_COPYOUT) |
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#define UV_BIOS_EXTRA_ENUM_PORTS (13|UV_BIOS_EXTRA_OP_MEM_COPYOUT) |
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/* |
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* Status values returned from a BIOS call. |
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*/ |
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enum { |
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BIOS_STATUS_MORE_PASSES = 1, |
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BIOS_STATUS_SUCCESS = 0, |
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BIOS_STATUS_UNIMPLEMENTED = -ENOSYS, |
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BIOS_STATUS_EINVAL = -EINVAL, |
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BIOS_STATUS_UNAVAIL = -EBUSY, |
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BIOS_STATUS_ABORT = -EINTR, |
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}; |
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/* Address map parameters */ |
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struct uv_gam_parameters { |
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u64 mmr_base; |
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u64 gru_base; |
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u8 mmr_shift; /* Convert PNode to MMR space offset */ |
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u8 gru_shift; /* Convert PNode to GRU space offset */ |
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u8 gpa_shift; /* Size of offset field in GRU phys addr */ |
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u8 unused1; |
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}; |
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/* UV_TABLE_GAM_RANGE_ENTRY values */ |
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#define UV_GAM_RANGE_TYPE_UNUSED 0 /* End of table */ |
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#define UV_GAM_RANGE_TYPE_RAM 1 /* Normal RAM */ |
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#define UV_GAM_RANGE_TYPE_NVRAM 2 /* Non-volatile memory */ |
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#define UV_GAM_RANGE_TYPE_NV_WINDOW 3 /* NVMDIMM block window */ |
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#define UV_GAM_RANGE_TYPE_NV_MAILBOX 4 /* NVMDIMM mailbox */ |
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#define UV_GAM_RANGE_TYPE_HOLE 5 /* Unused address range */ |
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#define UV_GAM_RANGE_TYPE_MAX 6 |
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/* The structure stores PA bits 56:26, for 64MB granularity */ |
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#define UV_GAM_RANGE_SHFT 26 /* 64MB */ |
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struct uv_gam_range_entry { |
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char type; /* Entry type: GAM_RANGE_TYPE_UNUSED, etc. */ |
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char unused1; |
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u16 nasid; /* HNasid */ |
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u16 sockid; /* Socket ID, high bits of APIC ID */ |
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u16 pnode; /* Index to MMR and GRU spaces */ |
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u32 unused2; |
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u32 limit; /* PA bits 56:26 (UV_GAM_RANGE_SHFT) */ |
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}; |
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#define UV_AT_SIZE 8 /* 7 character arch type + NULL char */ |
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struct uv_arch_type_entry { |
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char archtype[UV_AT_SIZE]; |
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}; |
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#define UV_SYSTAB_SIG "UVST" |
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#define UV_SYSTAB_VERSION_1 1 /* UV2/3 BIOS version */ |
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#define UV_SYSTAB_VERSION_UV4 0x400 /* UV4 BIOS base version */ |
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#define UV_SYSTAB_VERSION_UV4_1 0x401 /* + gpa_shift */ |
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#define UV_SYSTAB_VERSION_UV4_2 0x402 /* + TYPE_NVRAM/WINDOW/MBOX */ |
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#define UV_SYSTAB_VERSION_UV4_3 0x403 /* - GAM Range PXM Value */ |
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#define UV_SYSTAB_VERSION_UV4_LATEST UV_SYSTAB_VERSION_UV4_3 |
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#define UV_SYSTAB_VERSION_UV5 0x500 /* UV5 GAM base version */ |
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#define UV_SYSTAB_VERSION_UV5_LATEST UV_SYSTAB_VERSION_UV5 |
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#define UV_SYSTAB_TYPE_UNUSED 0 /* End of table (offset == 0) */ |
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#define UV_SYSTAB_TYPE_GAM_PARAMS 1 /* GAM PARAM conversions */ |
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#define UV_SYSTAB_TYPE_GAM_RNG_TBL 2 /* GAM entry table */ |
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#define UV_SYSTAB_TYPE_ARCH_TYPE 3 /* UV arch type */ |
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#define UV_SYSTAB_TYPE_MAX 4 |
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/* |
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* The UV system table describes specific firmware |
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* capabilities available to the Linux kernel at runtime. |
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*/ |
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struct uv_systab { |
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char signature[4]; /* must be UV_SYSTAB_SIG */ |
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u32 revision; /* distinguish different firmware revs */ |
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u64 function; /* BIOS runtime callback function ptr */ |
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u32 size; /* systab size (starting with _VERSION_UV4) */ |
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struct { |
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u32 type:8; /* type of entry */ |
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u32 offset:24; /* byte offset from struct start to entry */ |
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} entry[1]; /* additional entries follow */ |
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}; |
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extern struct uv_systab *uv_systab; |
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#define UV_BIOS_MAXSTRING 128 |
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struct uv_bios_hub_info { |
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unsigned int id; |
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union { |
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struct { |
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unsigned long long this_part:1; |
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unsigned long long is_shared:1; |
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unsigned long long is_disabled:1; |
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} fields; |
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struct { |
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unsigned long long flags; |
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unsigned long long reserved; |
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} b; |
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} f; |
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char name[UV_BIOS_MAXSTRING]; |
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char location[UV_BIOS_MAXSTRING]; |
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unsigned int ports; |
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}; |
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struct uv_bios_port_info { |
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unsigned int port; |
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unsigned int conn_id; |
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unsigned int conn_port; |
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}; |
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/* (... end of definitions from UV BIOS ...) */ |
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enum { |
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BIOS_FREQ_BASE_PLATFORM = 0, |
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BIOS_FREQ_BASE_INTERVAL_TIMER = 1, |
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BIOS_FREQ_BASE_REALTIME_CLOCK = 2 |
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}; |
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union partition_info_u { |
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u64 val; |
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struct { |
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u64 hub_version : 8, |
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partition_id : 16, |
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coherence_id : 16, |
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region_size : 24; |
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}; |
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}; |
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enum uv_memprotect { |
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UV_MEMPROT_RESTRICT_ACCESS, |
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UV_MEMPROT_ALLOW_AMO, |
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UV_MEMPROT_ALLOW_RW |
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}; |
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extern s64 uv_bios_get_sn_info(int, int *, long *, long *, long *, long *); |
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extern s64 uv_bios_freq_base(u64, u64 *); |
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extern int uv_bios_mq_watchlist_alloc(unsigned long, unsigned int, |
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unsigned long *); |
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extern int uv_bios_mq_watchlist_free(int, int); |
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extern s64 uv_bios_change_memprotect(u64, u64, enum uv_memprotect); |
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extern s64 uv_bios_reserved_page_pa(u64, u64 *, u64 *, u64 *); |
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extern int uv_bios_set_legacy_vga_target(bool decode, int domain, int bus); |
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extern s64 uv_bios_get_master_nasid(u64 sz, u64 *nasid); |
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extern s64 uv_bios_get_heapsize(u64 nasid, u64 sz, u64 *heap_sz); |
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extern s64 uv_bios_install_heap(u64 nasid, u64 sz, u64 *heap); |
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extern s64 uv_bios_obj_count(u64 nasid, u64 sz, u64 *objcnt); |
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extern s64 uv_bios_enum_objs(u64 nasid, u64 sz, u64 *objbuf); |
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extern s64 uv_bios_enum_ports(u64 nasid, u64 obj_id, u64 sz, u64 *portbuf); |
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extern s64 uv_bios_get_geoinfo(u64 nasid, u64 sz, u64 *geo); |
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extern s64 uv_bios_get_pci_topology(u64 sz, u64 *buf); |
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extern int uv_bios_init(void); |
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extern unsigned long get_uv_systab_phys(bool msg); |
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extern unsigned long sn_rtc_cycles_per_second; |
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extern int uv_type; |
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extern long sn_partition_id; |
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extern long sn_coherency_id; |
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extern long sn_region_size; |
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extern long system_serial_number; |
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extern ssize_t uv_get_archtype(char *buf, int len); |
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extern int uv_get_hubless_system(void); |
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extern struct kobject *sgi_uv_kobj; /* /sys/firmware/sgi_uv */ |
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/* |
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* EFI runtime lock; cf. firmware/efi/runtime-wrappers.c for details |
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*/ |
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extern struct semaphore __efi_uv_runtime_lock; |
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#endif /* _ASM_X86_UV_BIOS_H */
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