1 #ifndef _ASM_X86_UV_BIOS_H
2 #define _ASM_X86_UV_BIOS_H
5 * UV BIOS layer definitions.
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.
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.
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
21 * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved.
22 * Copyright (c) Russ Anderson
25 #include <linux/rtc.h>
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.
36 UV_BIOS_WATCHLIST_ALLOC,
37 UV_BIOS_WATCHLIST_FREE,
39 UV_BIOS_GET_PARTITION_ADDR
43 * Status values returned from a BIOS call.
46 BIOS_STATUS_MORE_PASSES = 1,
47 BIOS_STATUS_SUCCESS = 0,
48 BIOS_STATUS_UNIMPLEMENTED = -ENOSYS,
49 BIOS_STATUS_EINVAL = -EINVAL,
50 BIOS_STATUS_UNAVAIL = -EBUSY
54 * The UV system table describes specific firmware
55 * capabilities available to the Linux kernel at runtime.
58 char signature[4]; /* must be "UVST" */
59 u32 revision; /* distinguish different firmware revs */
60 u64 function; /* BIOS runtime callback function ptr */
64 BIOS_FREQ_BASE_PLATFORM = 0,
65 BIOS_FREQ_BASE_INTERVAL_TIMER = 1,
66 BIOS_FREQ_BASE_REALTIME_CLOCK = 2
69 union partition_info_u {
79 union uv_watchlist_u {
89 UV_MEMPROT_RESTRICT_ACCESS,
95 * bios calls have 6 parameters
97 extern s64 uv_bios_call(enum uv_bios_cmd, u64, u64, u64, u64, u64);
98 extern s64 uv_bios_call_irqsave(enum uv_bios_cmd, u64, u64, u64, u64, u64);
99 extern s64 uv_bios_call_reentrant(enum uv_bios_cmd, u64, u64, u64, u64, u64);
101 extern s64 uv_bios_get_sn_info(int, int *, long *, long *, long *);
102 extern s64 uv_bios_freq_base(u64, u64 *);
103 extern int uv_bios_mq_watchlist_alloc(int, unsigned long, unsigned int,
105 extern int uv_bios_mq_watchlist_free(int, int);
106 extern s64 uv_bios_change_memprotect(u64, u64, enum uv_memprotect);
107 extern s64 uv_bios_reserved_page_pa(u64, u64 *, u64 *, u64 *);
109 extern void uv_bios_init(void);
111 extern unsigned long sn_rtc_cycles_per_second;
113 extern long sn_partition_id;
114 extern long sn_coherency_id;
115 extern long sn_region_size;
116 #define partition_coherence_id() (sn_coherency_id)
118 extern struct kobject *sgi_uv_kobj; /* /sys/firmware/sgi_uv */
120 #endif /* _ASM_X86_UV_BIOS_H */