105e4d316SH. Peter Anvin #ifndef _ASM_X86_UV_BIOS_H 205e4d316SH. Peter Anvin #define _ASM_X86_UV_BIOS_H 3bb898558SAl Viro 4bb898558SAl Viro /* 5bb898558SAl Viro * UV BIOS layer definitions. 6bb898558SAl Viro * 7bb898558SAl Viro * This program is free software; you can redistribute it and/or modify 8bb898558SAl Viro * it under the terms of the GNU General Public License as published by 9bb898558SAl Viro * the Free Software Foundation; either version 2 of the License, or 10bb898558SAl Viro * (at your option) any later version. 11bb898558SAl Viro * 12bb898558SAl Viro * This program is distributed in the hope that it will be useful, 13bb898558SAl Viro * but WITHOUT ANY WARRANTY; without even the implied warranty of 14bb898558SAl Viro * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15bb898558SAl Viro * GNU General Public License for more details. 16bb898558SAl Viro * 17bb898558SAl Viro * You should have received a copy of the GNU General Public License 18bb898558SAl Viro * along with this program; if not, write to the Free Software 19bb898558SAl Viro * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20bb898558SAl Viro * 21bb898558SAl Viro * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. 22bb898558SAl Viro * Copyright (c) Russ Anderson 23bb898558SAl Viro */ 24bb898558SAl Viro 25bb898558SAl Viro #include <linux/rtc.h> 26bb898558SAl Viro 27bb898558SAl Viro /* 28bb898558SAl Viro * Values for the BIOS calls. It is passed as the first * argument in the 29bb898558SAl Viro * BIOS call. Passing any other value in the first argument will result 30bb898558SAl Viro * in a BIOS_STATUS_UNIMPLEMENTED return status. 31bb898558SAl Viro */ 32bb898558SAl Viro enum uv_bios_cmd { 33bb898558SAl Viro UV_BIOS_COMMON, 34bb898558SAl Viro UV_BIOS_GET_SN_INFO, 35bb898558SAl Viro UV_BIOS_FREQ_BASE 36bb898558SAl Viro }; 37bb898558SAl Viro 38bb898558SAl Viro /* 39bb898558SAl Viro * Status values returned from a BIOS call. 40bb898558SAl Viro */ 41bb898558SAl Viro enum { 42bb898558SAl Viro BIOS_STATUS_SUCCESS = 0, 43bb898558SAl Viro BIOS_STATUS_UNIMPLEMENTED = -ENOSYS, 44bb898558SAl Viro BIOS_STATUS_EINVAL = -EINVAL, 45bb898558SAl Viro BIOS_STATUS_UNAVAIL = -EBUSY 46bb898558SAl Viro }; 47bb898558SAl Viro 48bb898558SAl Viro /* 49bb898558SAl Viro * The UV system table describes specific firmware 50bb898558SAl Viro * capabilities available to the Linux kernel at runtime. 51bb898558SAl Viro */ 52bb898558SAl Viro struct uv_systab { 53bb898558SAl Viro char signature[4]; /* must be "UVST" */ 54bb898558SAl Viro u32 revision; /* distinguish different firmware revs */ 55bb898558SAl Viro u64 function; /* BIOS runtime callback function ptr */ 56bb898558SAl Viro }; 57bb898558SAl Viro 58bb898558SAl Viro enum { 59bb898558SAl Viro BIOS_FREQ_BASE_PLATFORM = 0, 60bb898558SAl Viro BIOS_FREQ_BASE_INTERVAL_TIMER = 1, 61bb898558SAl Viro BIOS_FREQ_BASE_REALTIME_CLOCK = 2 62bb898558SAl Viro }; 63bb898558SAl Viro 64bb898558SAl Viro union partition_info_u { 65bb898558SAl Viro u64 val; 66bb898558SAl Viro struct { 67bb898558SAl Viro u64 hub_version : 8, 68bb898558SAl Viro partition_id : 16, 69bb898558SAl Viro coherence_id : 16, 70bb898558SAl Viro region_size : 24; 71bb898558SAl Viro }; 72bb898558SAl Viro }; 73bb898558SAl Viro 74bb898558SAl Viro /* 75bb898558SAl Viro * bios calls have 6 parameters 76bb898558SAl Viro */ 77bb898558SAl Viro extern s64 uv_bios_call(enum uv_bios_cmd, u64, u64, u64, u64, u64); 78bb898558SAl Viro extern s64 uv_bios_call_irqsave(enum uv_bios_cmd, u64, u64, u64, u64, u64); 79bb898558SAl Viro extern s64 uv_bios_call_reentrant(enum uv_bios_cmd, u64, u64, u64, u64, u64); 80bb898558SAl Viro 81bb898558SAl Viro extern s64 uv_bios_get_sn_info(int, int *, long *, long *, long *); 82bb898558SAl Viro extern s64 uv_bios_freq_base(u64, u64 *); 83bb898558SAl Viro 84bb898558SAl Viro extern void uv_bios_init(void); 85bb898558SAl Viro 86bb898558SAl Viro extern int uv_type; 87bb898558SAl Viro extern long sn_partition_id; 88bb898558SAl Viro extern long uv_coherency_id; 89bb898558SAl Viro extern long uv_region_size; 90bb898558SAl Viro #define partition_coherence_id() (uv_coherency_id) 91bb898558SAl Viro 92bb898558SAl Viro extern struct kobject *sgi_uv_kobj; /* /sys/firmware/sgi_uv */ 93bb898558SAl Viro 9405e4d316SH. Peter Anvin #endif /* _ASM_X86_UV_BIOS_H */ 95