diff options
Diffstat (limited to 'include/asm-x86/uv/bios.h')
| -rw-r--r-- | include/asm-x86/uv/bios.h | 94 |
1 files changed, 60 insertions, 34 deletions
diff --git a/include/asm-x86/uv/bios.h b/include/asm-x86/uv/bios.h index 7cd6d7ec130..215f1969c26 100644 --- a/include/asm-x86/uv/bios.h +++ b/include/asm-x86/uv/bios.h @@ -2,9 +2,7 @@ #define ASM_X86__UV__BIOS_H /* - * BIOS layer definitions. - * - * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. + * UV BIOS layer definitions. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -19,50 +17,78 @@ * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. + * Copyright (c) Russ Anderson */ #include <linux/rtc.h> -#define BIOS_FREQ_BASE 0x01000001 +/* + * Values for the BIOS calls. It is passed as the first * argument in the + * BIOS call. Passing any other value in the first argument will result + * in a BIOS_STATUS_UNIMPLEMENTED return status. + */ +enum uv_bios_cmd { + UV_BIOS_COMMON, + UV_BIOS_GET_SN_INFO, + UV_BIOS_FREQ_BASE +}; +/* + * Status values returned from a BIOS call. + */ enum { - BIOS_FREQ_BASE_PLATFORM = 0, - BIOS_FREQ_BASE_INTERVAL_TIMER = 1, - BIOS_FREQ_BASE_REALTIME_CLOCK = 2 + BIOS_STATUS_SUCCESS = 0, + BIOS_STATUS_UNIMPLEMENTED = -ENOSYS, + BIOS_STATUS_EINVAL = -EINVAL, + BIOS_STATUS_UNAVAIL = -EBUSY }; -# define BIOS_CALL(result, a0, a1, a2, a3, a4, a5, a6, a7) \ - do { \ - /* XXX - the real call goes here */ \ - result.status = BIOS_STATUS_UNIMPLEMENTED; \ - isrv.v0 = 0; \ - isrv.v1 = 0; \ - } while (0) +/* + * The UV system table describes specific firmware + * capabilities available to the Linux kernel at runtime. + */ +struct uv_systab { + char signature[4]; /* must be "UVST" */ + u32 revision; /* distinguish different firmware revs */ + u64 function; /* BIOS runtime callback function ptr */ +}; enum { - BIOS_STATUS_SUCCESS = 0, - BIOS_STATUS_UNIMPLEMENTED = -1, - BIOS_STATUS_EINVAL = -2, - BIOS_STATUS_ERROR = -3 + BIOS_FREQ_BASE_PLATFORM = 0, + BIOS_FREQ_BASE_INTERVAL_TIMER = 1, + BIOS_FREQ_BASE_REALTIME_CLOCK = 2 }; -struct uv_bios_retval { - /* - * A zero status value indicates call completed without error. - * A negative status value indicates reason of call failure. - * A positive status value indicates success but an - * informational value should be printed (e.g., "reboot for - * change to take effect"). - */ - s64 status; - u64 v0; - u64 v1; - u64 v2; +union partition_info_u { + u64 val; + struct { + u64 hub_version : 8, + partition_id : 16, + coherence_id : 16, + region_size : 24; + }; }; -extern long -x86_bios_freq_base(unsigned long which, unsigned long *ticks_per_second, - unsigned long *drift_info); -extern const char *x86_bios_strerror(long status); +/* + * bios calls have 6 parameters + */ +extern s64 uv_bios_call(enum uv_bios_cmd, u64, u64, u64, u64, u64); +extern s64 uv_bios_call_irqsave(enum uv_bios_cmd, u64, u64, u64, u64, u64); +extern s64 uv_bios_call_reentrant(enum uv_bios_cmd, u64, u64, u64, u64, u64); + +extern s64 uv_bios_get_sn_info(int, int *, long *, long *, long *); +extern s64 uv_bios_freq_base(u64, u64 *); + +extern void uv_bios_init(void); + +extern int uv_type; +extern long sn_partition_id; +extern long uv_coherency_id; +extern long uv_region_size; +#define partition_coherence_id() (uv_coherency_id) + +extern struct kobject *sgi_uv_kobj; /* /sys/firmware/sgi_uv */ #endif /* ASM_X86__UV__BIOS_H */ |