Initial commit for OpenBSD/luna88k, based on OpenBSD/mvme88k, NetBSD/luna68k and CMU Mach.

1 files changed, 198 insertions, 0 deletions

diff --git a/sys/arch/luna88k/include/cpu.h b/sys/arch/luna88k/include/cpu.h
new file mode 100644
index 00000000000..ef11194964a
--- /dev/null
+++ b/sys/arch/luna88k/include/cpu.h
@@ -0,0 +1,198 @@
+/*	$OpenBSD: cpu.h,v 1.1 2004/04/21 15:23:57 aoyama Exp $ */
+/*
+ * 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. 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 __MACHINE_CPU_H__
+#define __MACHINE_CPU_H__
+
+/*
+ * CTL_MACHDEP definitinos.
+ */
+#define	CPU_CONSDEV	1	/* dev_t: console terminal device */
+#define	CPU_MAXID	2	/* number of valid machdep ids */
+
+#define	CTL_MACHDEP_NAMES { \
+	{ 0, 0 }, \
+	{ "console_device", CTLTYPE_STRUCT }, \
+}
+
+#ifdef _KERNEL
+
+#include <machine/psl.h>
+#include <machine/pcb.h>
+#include <machine/board.h>
+
+/*
+ * definitions of cpu-dependent requirements
+ * referenced in generic code
+ */
+#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;
+};
+
+#define	CLKF_USERMODE(framep)	((((struct trapframe *)(framep))->tf_epsr & PSR_MODE) == 0)
+#define	CLKF_PC(framep)		(((struct trapframe *)(framep))->tf_sxip & XIP_ADDR)
+#define	CLKF_INTR(framep)	(((struct trapframe *)(framep))->tf_r[31] >= UADDR)
+
+/*
+ * Get interrupt glue.
+ */
+#include <machine/intr.h>
+
+/*
+ * Internal IO space (iiomapsize).
+ *
+ * Internal IO space is mapped in the kernel from ``OBIO_START'' to
+ * ``intiolimit'' (defined in locore.s).  Since it is always mapped,
+ * conversion between physical and kernel virtual addresses is easy.
+ */
+
+#ifdef VIRTMAP
+/* This will do non 1:1 phys/virt memory mapping in the future - SPM */
+#define	ISIIOVA(va) \
+	((char *)(va) >= intiobase && (char *)(va) < intiolimit)
+#define	IIOV(pa)	((int)(pa)-(int)iiomapbase+(int)intiobase)
+#define	IIOP(va)	((int)(va)-(int)intiobase+(int)iiomapbase)
+#define	IIOPOFF(pa)	((int)(pa)-(int)iiomapbase)
+
+#else
+
+#define	ISIIOVA(va) 1
+#define	IIOV(pa)	((pa))
+#define	IIOP(va)	((va))
+#define	IIOPOFF(pa)	((int)(pa)-(int)OBIO_START)
+#endif
+
+#define SIR_NET		1
+#define SIR_CLOCK	2
+
+#define setsoftint(x)	(ssir |= (x))
+#define setsoftnet()	(ssir |= SIR_NET)
+#define setsoftclock()	(ssir |= SIR_CLOCK)
+
+#define siroff(x)	(ssir &= ~x)
+
+extern int	ssir;
+extern int	want_ast;
+
+/*
+ * Preempt the current process if in interrupt from user mode,
+ * or after the current trap/syscall if in system mode.
+ */
+extern 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 *);
+	void	*ih_arg;
+	int	ih_ipl;
+	int	ih_wantframe;
+	struct	intrhand *ih_next;
+};
+
+int	intr_establish(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 */
+};
+
+/* This struct defines the machine dependent pointers */
+struct md_p {
+	void (*clock_init_func)(void);      /* interval clock init function */
+	void (*statclock_init_func)(void);  /* statistics clock init function */
+	void (*delayclock_init_func)(void); /* delay clock init function */
+	void (*delay_func)(void);           /* delay clock function */
+	void (*interrupt_func)(u_int, struct trapframe *);       /* interrupt func */
+	u_char *volatile intr_mask;
+	u_char *volatile intr_ipl;
+	u_char *volatile intr_src;
+};
+
+extern struct md_p md;
+
+int badvaddr(vaddr_t, int);
+void nmihand(void *);
+
+#endif /* _KERNEL */
+#endif /* __MACHINE_CPU_H__ */