/* * Copyright (c) 2003-2008 Apple Computer, Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_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, LWSYNC, or EIEIO, map to NOP if UP #define kCommPageISYNC 0x0004 // this routine uses ISYNC, map to NOP if UP #define kCommPageMTCRF 0x0008 // set bit 11 in MTCRF if only 1 cr specified #define kPort32to64 0x1000 // written for 32-bit, must port to 64-bit #define kCommPage64 0x2000 // this routine is useable in 64-bit mode #define kCommPage32 0x4000 // this routine is useable in 32-bit mode #define kCommPageBoth (kCommPage32+kCommPage64) #ifdef __ASSEMBLER__ #define COMMPAGE_DESCRIPTOR(label,address,must,cant,special) \ .globl EXT(label) @\ 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 *commPagePtr32; // virt address of 32-bit commpage in kernel map extern char *commPagePtr64; // virt address of 64-bit commpage in kernel map extern void commpage_set_timestamp(uint64_t tbr, uint64_t secs, uint32_t ticks_per_sec); #define commpage_disable_timestamp() commpage_set_timestamp( 0, 0, 0 ) #define commpage_set_memory_pressure( pressure ) extern int commpage_time_dcba( void ); #endif /* __ASSEMBLER__ */ #endif /* _PPC_COMMPAGE_H */