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1 | #ifndef _ASM_X86_UV_BIOS_H |
2 | #define _ASM_X86_UV_BIOS_H | |
7019cc2d RA |
3 | |
4 | /* | |
7f594232 | 5 | * UV BIOS layer definitions. |
7019cc2d RA |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
7f594232 | 20 | * |
b76365a1 RA |
21 | * Copyright (c) 2008-2009 Silicon Graphics, Inc. All Rights Reserved. |
22 | * Copyright (c) Russ Anderson <rja@sgi.com> | |
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23 | */ |
24 | ||
25 | #include <linux/rtc.h> | |
26 | ||
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27 | /* |
28 | * Values for the BIOS calls. It is passed as the first * argument in the | |
29 | * BIOS call. Passing any other value in the first argument will result | |
30 | * in a BIOS_STATUS_UNIMPLEMENTED return status. | |
31 | */ | |
32 | enum uv_bios_cmd { | |
33 | UV_BIOS_COMMON, | |
34 | UV_BIOS_GET_SN_INFO, | |
64ccf2f9 RA |
35 | UV_BIOS_FREQ_BASE, |
36 | UV_BIOS_WATCHLIST_ALLOC, | |
e8929c8a | 37 | UV_BIOS_WATCHLIST_FREE, |
23c35700 | 38 | UV_BIOS_MEMPROTECT, |
841582ea MT |
39 | UV_BIOS_GET_PARTITION_ADDR, |
40 | UV_BIOS_SET_LEGACY_VGA_TARGET | |
7f594232 | 41 | }; |
7019cc2d | 42 | |
7f594232 RA |
43 | /* |
44 | * Status values returned from a BIOS call. | |
45 | */ | |
7019cc2d | 46 | enum { |
23c35700 | 47 | BIOS_STATUS_MORE_PASSES = 1, |
7f594232 RA |
48 | BIOS_STATUS_SUCCESS = 0, |
49 | BIOS_STATUS_UNIMPLEMENTED = -ENOSYS, | |
50 | BIOS_STATUS_EINVAL = -EINVAL, | |
51 | BIOS_STATUS_UNAVAIL = -EBUSY | |
7019cc2d RA |
52 | }; |
53 | ||
ef93bf80 MT |
54 | /* Address map parameters */ |
55 | struct uv_gam_parameters { | |
56 | u64 mmr_base; | |
57 | u64 gru_base; | |
58 | u8 mmr_shift; /* Convert PNode to MMR space offset */ | |
59 | u8 gru_shift; /* Convert PNode to GRU space offset */ | |
60 | u8 gpa_shift; /* Size of offset field in GRU phys addr */ | |
61 | u8 unused1; | |
62 | }; | |
63 | ||
64 | /* UV_TABLE_GAM_RANGE_ENTRY values */ | |
65 | #define UV_GAM_RANGE_TYPE_UNUSED 0 /* End of table */ | |
66 | #define UV_GAM_RANGE_TYPE_RAM 1 /* Normal RAM */ | |
67 | #define UV_GAM_RANGE_TYPE_NVRAM 2 /* Non-volatile memory */ | |
68 | #define UV_GAM_RANGE_TYPE_NV_WINDOW 3 /* NVMDIMM block window */ | |
69 | #define UV_GAM_RANGE_TYPE_NV_MAILBOX 4 /* NVMDIMM mailbox */ | |
70 | #define UV_GAM_RANGE_TYPE_HOLE 5 /* Unused address range */ | |
71 | #define UV_GAM_RANGE_TYPE_MAX 6 | |
72 | ||
73 | /* The structure stores PA bits 56:26, for 64MB granularity */ | |
74 | #define UV_GAM_RANGE_SHFT 26 /* 64MB */ | |
75 | ||
76 | struct uv_gam_range_entry { | |
77 | char type; /* Entry type: GAM_RANGE_TYPE_UNUSED, etc. */ | |
78 | char unused1; | |
79 | u16 nasid; /* HNasid */ | |
80 | u16 sockid; /* Socket ID, high bits of APIC ID */ | |
81 | u16 pnode; /* Index to MMR and GRU spaces */ | |
22ac2bca | 82 | u32 unused2; |
ef93bf80 MT |
83 | u32 limit; /* PA bits 56:26 (UV_GAM_RANGE_SHFT) */ |
84 | }; | |
85 | ||
86 | #define UV_SYSTAB_SIG "UVST" | |
87 | #define UV_SYSTAB_VERSION_1 1 /* UV1/2/3 BIOS version */ | |
88 | #define UV_SYSTAB_VERSION_UV4 0x400 /* UV4 BIOS base version */ | |
89 | #define UV_SYSTAB_VERSION_UV4_1 0x401 /* + gpa_shift */ | |
90 | #define UV_SYSTAB_VERSION_UV4_2 0x402 /* + TYPE_NVRAM/WINDOW/MBOX */ | |
22ac2bca MT |
91 | #define UV_SYSTAB_VERSION_UV4_3 0x403 /* - GAM Range PXM Value */ |
92 | #define UV_SYSTAB_VERSION_UV4_LATEST UV_SYSTAB_VERSION_UV4_3 | |
ef93bf80 MT |
93 | |
94 | #define UV_SYSTAB_TYPE_UNUSED 0 /* End of table (offset == 0) */ | |
95 | #define UV_SYSTAB_TYPE_GAM_PARAMS 1 /* GAM PARAM conversions */ | |
96 | #define UV_SYSTAB_TYPE_GAM_RNG_TBL 2 /* GAM entry table */ | |
97 | #define UV_SYSTAB_TYPE_MAX 3 | |
98 | ||
7f594232 RA |
99 | /* |
100 | * The UV system table describes specific firmware | |
101 | * capabilities available to the Linux kernel at runtime. | |
102 | */ | |
103 | struct uv_systab { | |
ef93bf80 | 104 | char signature[4]; /* must be UV_SYSTAB_SIG */ |
7f594232 RA |
105 | u32 revision; /* distinguish different firmware revs */ |
106 | u64 function; /* BIOS runtime callback function ptr */ | |
ef93bf80 MT |
107 | u32 size; /* systab size (starting with _VERSION_UV4) */ |
108 | struct { | |
109 | u32 type:8; /* type of entry */ | |
110 | u32 offset:24; /* byte offset from struct start to entry */ | |
111 | } entry[1]; /* additional entries follow */ | |
7f594232 | 112 | }; |
ef93bf80 MT |
113 | extern struct uv_systab *uv_systab; |
114 | /* (... end of definitions from UV BIOS ...) */ | |
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115 | |
116 | enum { | |
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117 | BIOS_FREQ_BASE_PLATFORM = 0, |
118 | BIOS_FREQ_BASE_INTERVAL_TIMER = 1, | |
119 | BIOS_FREQ_BASE_REALTIME_CLOCK = 2 | |
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120 | }; |
121 | ||
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122 | union partition_info_u { |
123 | u64 val; | |
124 | struct { | |
125 | u64 hub_version : 8, | |
126 | partition_id : 16, | |
127 | coherence_id : 16, | |
128 | region_size : 24; | |
129 | }; | |
130 | }; | |
131 | ||
e8929c8a RA |
132 | enum uv_memprotect { |
133 | UV_MEMPROT_RESTRICT_ACCESS, | |
134 | UV_MEMPROT_ALLOW_AMO, | |
135 | UV_MEMPROT_ALLOW_RW | |
136 | }; | |
137 | ||
7f594232 RA |
138 | /* |
139 | * bios calls have 6 parameters | |
140 | */ | |
141 | extern s64 uv_bios_call(enum uv_bios_cmd, u64, u64, u64, u64, u64); | |
142 | extern s64 uv_bios_call_irqsave(enum uv_bios_cmd, u64, u64, u64, u64, u64); | |
143 | extern s64 uv_bios_call_reentrant(enum uv_bios_cmd, u64, u64, u64, u64, u64); | |
144 | ||
b76365a1 | 145 | extern s64 uv_bios_get_sn_info(int, int *, long *, long *, long *, long *); |
922402f1 | 146 | extern s64 uv_bios_freq_base(u64, u64 *); |
c2c9f115 | 147 | extern int uv_bios_mq_watchlist_alloc(unsigned long, unsigned int, |
64ccf2f9 RA |
148 | unsigned long *); |
149 | extern int uv_bios_mq_watchlist_free(int, int); | |
e8929c8a | 150 | extern s64 uv_bios_change_memprotect(u64, u64, enum uv_memprotect); |
23c35700 | 151 | extern s64 uv_bios_reserved_page_pa(u64, u64 *, u64 *, u64 *); |
841582ea | 152 | extern int uv_bios_set_legacy_vga_target(bool decode, int domain, int bus); |
922402f1 | 153 | |
ef93bf80 | 154 | #ifdef CONFIG_EFI |
7f594232 | 155 | extern void uv_bios_init(void); |
ef93bf80 MT |
156 | #else |
157 | void uv_bios_init(void) { } | |
158 | #endif | |
7019cc2d | 159 | |
64ccf2f9 | 160 | extern unsigned long sn_rtc_cycles_per_second; |
922402f1 RA |
161 | extern int uv_type; |
162 | extern long sn_partition_id; | |
b0f20989 RA |
163 | extern long sn_coherency_id; |
164 | extern long sn_region_size; | |
b76365a1 | 165 | extern long system_serial_number; |
ef93bf80 | 166 | #define uv_partition_coherence_id() (sn_coherency_id) |
922402f1 | 167 | |
fc8c2d76 | 168 | extern struct kobject *sgi_uv_kobj; /* /sys/firmware/sgi_uv */ |
7019cc2d | 169 | |
05e4d316 | 170 | #endif /* _ASM_X86_UV_BIOS_H */ |