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Diffstat (limited to 'sys/arch/mvme88k/include/cpu.h')
| -rw-r--r-- | sys/arch/mvme88k/include/cpu.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/sys/arch/mvme88k/include/cpu.h b/sys/arch/mvme88k/include/cpu.h new file mode 100644 index 00000000000..850b29ac35f --- /dev/null +++ b/sys/arch/mvme88k/include/cpu.h @@ -0,0 +1,156 @@ +/* + * Copyright (c) 1996 Nivas Madhur + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * This software was developed by the Computer Systems Engineering group + * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and + * contributed to Berkeley. + * + * 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, Lawrence Berkeley Laboratory. + * + * 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. + */ + +#ifndef _CPU_H_ +#define _CPU_H_ + +/* + * CTL_MACHDEP definitinos. + */ +#define CPU_MAXID 1 /* no valid machdep ids */ + +#define CTL_MACHDEP_NAMES { \ + { 0, 0 }, \ +} + +#ifdef _KERNEL + +#include <machine/psl.h> +#include <machine/pcb.h> + +/* + * definitions of cpu-dependent requirements + * referenced in generic code + */ +#define COPY_SIGCODE /* copy sigcode above user stack in exec */ + +#define cpu_exec(p) /* nothing */ +#define cpu_wait(p) /* nothing */ +#define cpu_swapout(p) /* nothing */ + +/* + * Arguments to hardclock and gatherstats encapsulate the previous + * machine state in an opaque clockframe. CLKF_INTR is only valid + * if the process is in kernel mode. Clockframe is really trapframe, + * so pointer to clockframe can be safely cast into a pointer to + * trapframe. + */ +struct clockframe { + struct trapframe tf; +}; + +extern intstack; + +#define CLKF_USERMODE(framep) ((((struct trapframe *)(framep))->epsr & 80000000) == 0) +#define CLKF_BASEPRI(framep) (((struct trapframe *)(framep))->mask == 0) +#define CLKF_PC(framep) (((struct trapframe *)(framep))->sxip & ~3) +#define CLKF_INTR(framep) (((struct trapframe *)(framep))->r[31] > intstack) + +#define SIR_NET 1 +#define SIR_CLOCK 2 + +#define setsoftnet() (ssir |= SIR_NET) +#define setsoftclock() (ssir |= SIR_CLOCK) + +#define siroff(x) (ssir &= ~x) + +int ssir; +int want_ast; + +/* + * Preempt the current process if in interrupt from user mode, + * or after the current trap/syscall if in system mode. + */ +int want_resched; /* resched() was called */ +#define need_resched() (want_resched = 1, want_ast = 1) + +/* + * Give a profiling tick to the current process when the user profiling + * buffer pages are invalid. On the sparc, request an ast to send us + * through trap(), marking the proc as needing a profiling tick. + */ +#define need_proftick(p) ((p)->p_flag |= P_OWEUPC, want_ast = 1) + +/* + * Notify the current process (p) that it has a signal pending, + * process as soon as possible. + */ +#define signotify(p) (want_ast = 1) + +struct intrhand { + int (*ih_fn)(); + void *ih_arg; + int ih_ipl; + int ih_wantframe; + struct intrhand *ih_next; +}; + +int intr_establish __P((int vec, struct intrhand *)); + +/* + * return values for intr_establish() + */ + +#define INTR_EST_SUCC 0 +#define INTR_EST_BADVEC 1 +#define INTR_EST_BADIPL 2 + + +/* + * There are 256 possible vectors on a MVME1x7 platform (including + * onboard and VME vectors. Use intr_establish() to register a + * handler for the given vector. vector number is used to index + * into the intr_handlers[] table. + */ +extern struct intrhand *intr_handlers[256]; + +/* + * switchframe - should be double word aligned. + */ +struct switchframe { + u_int sf_pc; /* pc */ + void *sf_proc; /* proc pointer */ +}; + +#endif /* _KERNEL */ +#endif /* _CPU_H_ */ |