Vegard Nossum | 77ef50a | 2008-06-18 17:08:48 +0200 | [diff] [blame] | 1 | #ifndef ASM_X86__UV__BIOS_H |
| 2 | #define ASM_X86__UV__BIOS_H |
Russ Anderson | 7019cc2 | 2008-07-09 15:27:19 -0500 | [diff] [blame] | 3 | |
| 4 | /* |
Russ Anderson | 7f59423 | 2008-10-03 11:59:15 -0500 | [diff] [blame] | 5 | * UV BIOS layer definitions. |
Russ Anderson | 7019cc2 | 2008-07-09 15:27:19 -0500 | [diff] [blame] | 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 |
Russ Anderson | 7f59423 | 2008-10-03 11:59:15 -0500 | [diff] [blame] | 20 | * |
| 21 | * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. |
| 22 | * Copyright (c) Russ Anderson |
Russ Anderson | 7019cc2 | 2008-07-09 15:27:19 -0500 | [diff] [blame] | 23 | */ |
| 24 | |
| 25 | #include <linux/rtc.h> |
| 26 | |
Russ Anderson | 7f59423 | 2008-10-03 11:59:15 -0500 | [diff] [blame] | 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, |
| 35 | UV_BIOS_FREQ_BASE |
| 36 | }; |
| 37 | |
| 38 | /* |
| 39 | * Status values returned from a BIOS call. |
| 40 | */ |
| 41 | enum { |
| 42 | BIOS_STATUS_SUCCESS = 0, |
| 43 | BIOS_STATUS_UNIMPLEMENTED = -ENOSYS, |
| 44 | BIOS_STATUS_EINVAL = -EINVAL, |
| 45 | BIOS_STATUS_UNAVAIL = -EBUSY |
| 46 | }; |
| 47 | |
| 48 | /* |
| 49 | * The UV system table describes specific firmware |
| 50 | * capabilities available to the Linux kernel at runtime. |
| 51 | */ |
| 52 | struct uv_systab { |
| 53 | char signature[4]; /* must be "UVST" */ |
| 54 | u32 revision; /* distinguish different firmware revs */ |
| 55 | u64 function; /* BIOS runtime callback function ptr */ |
| 56 | }; |
Russ Anderson | 7019cc2 | 2008-07-09 15:27:19 -0500 | [diff] [blame] | 57 | |
| 58 | enum { |
| 59 | BIOS_FREQ_BASE_PLATFORM = 0, |
| 60 | BIOS_FREQ_BASE_INTERVAL_TIMER = 1, |
| 61 | BIOS_FREQ_BASE_REALTIME_CLOCK = 2 |
| 62 | }; |
| 63 | |
Russ Anderson | 922402f | 2008-10-03 11:59:33 -0500 | [diff] [blame] | 64 | union partition_info_u { |
| 65 | u64 val; |
| 66 | struct { |
| 67 | u64 hub_version : 8, |
| 68 | partition_id : 16, |
| 69 | coherence_id : 16, |
| 70 | region_size : 24; |
| 71 | }; |
| 72 | }; |
| 73 | |
Russ Anderson | 7f59423 | 2008-10-03 11:59:15 -0500 | [diff] [blame] | 74 | /* |
| 75 | * bios calls have 6 parameters |
| 76 | */ |
| 77 | extern s64 uv_bios_call(enum uv_bios_cmd, u64, u64, u64, u64, u64); |
| 78 | extern s64 uv_bios_call_irqsave(enum uv_bios_cmd, u64, u64, u64, u64, u64); |
| 79 | extern s64 uv_bios_call_reentrant(enum uv_bios_cmd, u64, u64, u64, u64, u64); |
Russ Anderson | 7019cc2 | 2008-07-09 15:27:19 -0500 | [diff] [blame] | 80 | |
Russ Anderson | 922402f | 2008-10-03 11:59:33 -0500 | [diff] [blame] | 81 | extern s64 uv_bios_get_sn_info(int, int *, long *, long *, long *); |
| 82 | extern s64 uv_bios_freq_base(u64, u64 *); |
| 83 | |
Russ Anderson | 7f59423 | 2008-10-03 11:59:15 -0500 | [diff] [blame] | 84 | extern void uv_bios_init(void); |
Russ Anderson | 7019cc2 | 2008-07-09 15:27:19 -0500 | [diff] [blame] | 85 | |
Russ Anderson | 922402f | 2008-10-03 11:59:33 -0500 | [diff] [blame] | 86 | extern int uv_type; |
| 87 | extern long sn_partition_id; |
| 88 | extern long uv_coherency_id; |
| 89 | extern long uv_region_size; |
| 90 | #define partition_coherence_id() (uv_coherency_id) |
| 91 | |
Russ Anderson | fc8c2d7 | 2008-10-03 11:59:50 -0500 | [diff] [blame] | 92 | extern struct kobject *sgi_uv_kobj; /* /sys/firmware/sgi_uv */ |
Russ Anderson | 7019cc2 | 2008-07-09 15:27:19 -0500 | [diff] [blame] | 93 | |
Vegard Nossum | 77ef50a | 2008-06-18 17:08:48 +0200 | [diff] [blame] | 94 | #endif /* ASM_X86__UV__BIOS_H */ |