/* * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ #ifndef _I386_COMMPAGE_H #define _I386_COMMPAGE_H #ifndef __ASSEMBLER__ #include <stdint.h> #endif /* __ASSEMBLER__ */ #ifdef __ASSEMBLER__ #include <machine/asm.h> #define COMMPAGE_DESCRIPTOR(label,address,must,cant) \ L ## label ## _end: ;\ .const_data ;\ L ## label ## _size = L ## label ## _end - L ## label ;\ .private_extern _commpage_ ## label ;\ _commpage_ ## label ## : ;\ .long L ## label ;\ .long L ## label ## _size ;\ .long address ;\ .long must ;\ .long cant ;\ .text #else /* __ASSEMBLER__ */ /* Each potential commpage routine is described by one of these. * Note that the COMMPAGE_DESCRIPTOR macro (above), used in * assembly language, must agree with this. */ typedef struct commpage_descriptor { void *code_address; // address of code long code_length; // length in bytes long commpage_address; // put at this address (_COMM_PAGE_BCOPY etc) long musthave; // _cpu_capability bits we must have long canthave; // _cpu_capability bits we can't have } commpage_descriptor; extern char *commPagePtr; // virt address of commpage in kernel map extern void commpage_set_timestamp(uint64_t tbr,uint32_t secs,uint32_t usecs,uint32_t ticks_per_sec); typedef struct { uint64_t nt_base_tsc; uint64_t nt_base_ns; uint32_t nt_scale; uint32_t nt_shift; uint64_t nt_check_tsc; } commpage_nanotime_t; extern void commpage_set_nanotime(commpage_nanotime_t *new_nanotime); #endif /* __ASSEMBLER__ */ #endif /* _I386_COMMPAGE_H */