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Diffstat (limited to 'include/asm-x86/uv/bios.h')
-rw-r--r-- | include/asm-x86/uv/bios.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/include/asm-x86/uv/bios.h b/include/asm-x86/uv/bios.h new file mode 100644 index 000000000000..aa73362ff5df --- /dev/null +++ b/include/asm-x86/uv/bios.h @@ -0,0 +1,68 @@ +#ifndef _ASM_X86_BIOS_H +#define _ASM_X86_BIOS_H + +/* + * BIOS layer definitions. + * + * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. + * + * 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 + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * 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 + */ + +#include <linux/rtc.h> + +#define BIOS_FREQ_BASE 0x01000001 + +enum { + BIOS_FREQ_BASE_PLATFORM = 0, + BIOS_FREQ_BASE_INTERVAL_TIMER = 1, + BIOS_FREQ_BASE_REALTIME_CLOCK = 2 +}; + +# 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) + +enum { + BIOS_STATUS_SUCCESS = 0, + BIOS_STATUS_UNIMPLEMENTED = -1, + BIOS_STATUS_EINVAL = -2, + BIOS_STATUS_ERROR = -3 +}; + +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; +}; + +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); + +#endif /* _ASM_X86_BIOS_H */ |