/* * 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 _PPC_COMMPAGE_H #define _PPC_COMMPAGE_H #ifndef __ASSEMBLER__ #include <stdint.h> #endif /* __ASSEMBLER__ */ /* Special check bits for the compage_descriptor "special" field. */ #define kCommPageDCBA 0x0001 // this routine uses DCBA, map to NOP if not appropriate #define kCommPageSYNC 0x0002 // this routine uses SYNC, map to NOP if UP #define kCommPageMTCRF 0x0004 // set bit 11 in MTCRF if only 1 cr specified #ifdef __ASSEMBLER__ #define COMMPAGE_DESCRIPTOR(label,address,must,cant,special) \ LEXT(label) @\ .short label-. @\ .short .-label-2 @\ .short address @\ .short special @\ .long must @\ .long cant #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 { short code_offset; // offset to code from this descriptor short code_length; // length in bytes short commpage_address; // put at this address (_COMM_PAGE_BCOPY etc) short special; // special handling bits for DCBA and SYNC 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); extern int commpage_time_dcba( void ); #endif /* __ASSEMBLER__ */ #endif /* _PPC_COMMPAGE_H */