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NetBSD/sys/arch/mvme68k/include/cpu.h
rmind 40cf6f3659 Remove uarea swap-out functionality: 
- Addresses the issue described in PR/38828.
- Some simplification in threading and sleepq subsystems.
- Eliminates pmap_collect() and, as a side note, allows pmap optimisations.
- Eliminates XS_CTL_DATA_ONSTACK in scsipi code.
- Avoids few scans on LWP list and thus potentially long holds of proc_lock.
- Cuts ~1.5k lines of code.  Reduces amd64 kernel size by ~4k.
- Removes __SWAP_BROKEN cases.

Tested on x86, mips, acorn32 (thanks <mpumford>) and partly tested on
acorn26 (thanks to <bjh21>).

Discussed on <tech-kern>, reviewed by <ad>.
2009-10-21 21:11:57 +00:00

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/* $NetBSD: cpu.h,v 1.43 2009/10/21 21:12:01 rmind Exp $ */
/*
* Copyright (c) 1982, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: Utah $Hdr: cpu.h 1.16 91/03/25$
*
* @(#)cpu.h 8.4 (Berkeley) 1/5/94
*/
/*
* Copyright (c) 1988 University of Utah.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: Utah $Hdr: cpu.h 1.16 91/03/25$
*
* @(#)cpu.h 8.4 (Berkeley) 1/5/94
*/
#ifndef _MACHINE_CPU_H_
#define _MACHINE_CPU_H_
#if defined(_KERNEL)
/*
* Exported definitions unique to mvme68k/68k cpu support.
*/
#if defined(_KERNEL_OPT)
#include "opt_lockdebug.h"
#endif
/*
* Get common m68k CPU definitions.
*/
#include <m68k/cpu.h>
#define M68K_MMU_MOTOROLA
#include <sys/cpu_data.h>
struct cpu_info {
struct cpu_data ci_data; /* MI per-cpu data */
cpuid_t ci_cpuid;
int ci_mtx_count;
int ci_mtx_oldspl;
int ci_want_resched;
};
extern struct cpu_info cpu_info_store;
#define curcpu() (&cpu_info_store)
/*
* definitions of cpu-dependent requirements
* referenced in generic code
*/
#define cpu_number() 0
void cpu_proc_fork(struct proc *, struct proc *);
/*
* Arguments to hardclock and gatherstats encapsulate the previous
* machine state in an opaque clockframe. One the mvme68k, we use
* what the hardware pushes on an interrupt (frame format 0).
*/
struct clockframe {
u_short sr; /* sr at time of interrupt */
u_long pc; /* pc at time of interrupt */
u_short fmt:4,
vec:12; /* vector offset (4-word frame) */
} __attribute__((packed));
#define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0)
#define CLKF_PC(framep) ((framep)->pc)
/*
* The clock interrupt handler can determine if it's a nested
* interrupt by checking for interrupt_depth > 1.
* (Remember, the clock interrupt handler itself will cause the
* depth counter to be incremented).
*/
extern volatile unsigned int interrupt_depth;
#define CLKF_INTR(framep) (interrupt_depth > 1)
/*
* Preempt the current process if in interrupt from user mode,
* or after the current trap/syscall if in system mode.
*/
#define cpu_need_resched(ci, flags) \
do { ci->ci_want_resched++; aston(); } while (/* CONSTCOND */0)
/*
* Give a profiling tick to the current process when the user profiling
* buffer pages are invalid. On the hp300, request an ast to send us
* through trap, marking the proc as needing a profiling tick.
*/
#define cpu_need_proftick(l) \
do { (l)->l_pflag |= LP_OWEUPC; aston(); } while (/* CONSTCOND */0)
/*
* Notify the current process (p) that it has a signal pending,
* process as soon as possible.
*/
#define cpu_signotify(l) aston()
extern int astpending; /* need to trap before returning to user mode */
#define aston() (astpending++)
#endif /* _KERNEL */
/*
* CTL_MACHDEP definitions.
*/
#define CPU_CONSDEV 1 /* dev_t: console terminal device */
#define CPU_MAXID 2 /* number of valid machdep ids */
#ifdef _KERNEL
/*
* Associate MVME models with CPU types.
*/
#define MVME68K 1
/*
* MVME-147; 68030 CPU
*/
#if defined(MVME147) && !defined(M68030)
#define M68030
#endif
/*
* MVME-162/166/167; 68040 CPU
*/
#if (defined(MVME162) || defined(MVME167)) && !defined(M68040)
#define M68040
#endif
/*
* MVME-172/177; 68060 CPU
*/
#if (defined(MVME172) || defined(MVME177)) && !defined(M68060)
#define M68060
#endif
#endif /* _KERNEL */
/*
* Values for machineid; these match the Bug's values.
*/
#define MVME_147 0x147
#define MVME_162 0x162
#define MVME_166 0x166
#define MVME_167 0x167
#define MVME_172 0x172
#define MVME_177 0x177
#ifdef _KERNEL
extern int machineid;
extern int cpuspeed;
extern char *intiobase, *intiolimit;
extern u_int intiobase_phys, intiotop_phys;
extern u_long ether_data_buff_size;
extern u_char mvme_ea[6];
void doboot(int)
__attribute__((__noreturn__));
int nmihand(void *);
void mvme68k_abort(const char *);
void *iomap(u_long, size_t);
void iounmap(void *, size_t);
void loadustp(paddr_t);
/* physical memory addresses where mvme147's onboard devices live */
#define INTIOBASE147 (0xfffe0000u)
#define INTIOTOP147 (0xfffe5000u)
/* ditto for mvme1[67][27] */
#define INTIOBASE1xx (0xfff40000u)
#define INTIOTOP1xx (0xfffd0000u)
#endif /* _KERNEL */
#endif /* _MACHINE_CPU_H_ */
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