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authorMiod Vallat <miod@cvs.openbsd.org>2004-04-26 12:34:06 +0000
committerMiod Vallat <miod@cvs.openbsd.org>2004-04-26 12:34:06 +0000
commitaa994f703c162d95d4deb49c03c3a1db2d112bfe (patch)
tree84b0a710f435f1e25b7250a36ba58938d79a9b9e /sys/arch/m88k/include/cpu.h
parentcdbfc97159f36439e647d02962c2945d39ca1576 (diff)
Start factorizing luna88k and mvme88k common parts.
For now, include files only.
Diffstat (limited to 'sys/arch/m88k/include/cpu.h')
-rw-r--r--sys/arch/m88k/include/cpu.h174
1 files changed, 174 insertions, 0 deletions
diff --git a/sys/arch/m88k/include/cpu.h b/sys/arch/m88k/include/cpu.h
new file mode 100644
index 00000000000..213c4a7d672
--- /dev/null
+++ b/sys/arch/m88k/include/cpu.h
@@ -0,0 +1,174 @@
+/* $OpenBSD: cpu.h,v 1.1 2004/04/26 12:34:05 miod 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>
+
+#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__ */