[src/trunk]: src/sys/arch/sun2/include Added.

[fredette <fredette%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/baebcecedeca
branches:  trunk
changeset: 507681:baebcecedeca
user:      fredette <fredette%NetBSD.org@localhost>
date:      Thu Mar 29 04:35:09 2001 +0000

description:
Added.

diffstat:

 sys/arch/sun2/include/dvma.h  |   89 ++++++++++++++++++++++++++++++++
 sys/arch/sun2/include/param.h |  107 +++++++++++++++++++++++++++++++++++++++
 sys/arch/sun2/include/pmap.h  |  115 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 311 insertions(+), 0 deletions(-)

diffs (truncated from 323 to 300 lines):

diff -r 518674ef7e2b -r baebcecedeca sys/arch/sun2/include/dvma.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/sun2/include/dvma.h      Thu Mar 29 04:35:09 2001 +0000
@@ -0,0 +1,89 @@
+/*     $NetBSD: dvma.h,v 1.1 2001/03/29 04:41:13 fredette Exp $        */
+
+/*-
+ * Copyright (c) 1996 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Gordon W. Ross and Matthew Fredette.
+ *
+ * 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 NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+/*
+ * DVMA (Direct Virtual Memory Access)
+ *
+ * For the unfamiliar, this is just DMA where the device doing DMA
+ * operates in a virtual address space.  The virtual to physical
+ * translations are controlled by the same MMU used bu the CPU.
+ * Usually, the virtual space accessed by DVMA devices is a small
+ * sub-range of the CPU virtual space, and that range is known as 
+ * DVMA space.  
+ */
+
+/*
+ * Note that while the DVMA harware makes the last 1MB visible
+ * for secondary masters, the PROM "owns" the last page of it.
+ * XXX fredette - is this because of the obio ie SCP?
+ * Also note that OBIO devices can actually see all of
+ * of kernel virtual space.
+ */
+/* XXX fredette - the MAP_SIZE value is for the 2/120; the
+   2/50 can have a MAP_SIZE of 0x000F8000: */
+#define DVMA_MAP_BASE  0x00F00000
+#define DVMA_MAP_SIZE  0x00040000
+#define DVMA_MAP_AVAIL (DVMA_MAP_SIZE-NBPG)
+
+/*
+ * To convert an address in DVMA space to a slave address,
+ * just use a logical AND with one of the following masks.
+ * To convert back, just logical OR with the base address.
+ */
+#define DVMA_OBIO_SLAVE_BASE   0x0F000000
+#define DVMA_OBIO_SLAVE_MASK   0x00FFffff      /* 16MB */
+
+#define DVMA_MBMEM_SLAVE_BASE  0x00F00000
+#define DVMA_MBMEM_SLAVE_MASK  0x000Fffff      /*  1MB */
+
+#define DVMA_VME_SLAVE_BASE    0x00F00000
+#define DVMA_VME_SLAVE_MASK    0x000Fffff      /*  1MB */
+
+void dvma_init __P((void));
+
+/* Allocate/free actual pages of DVMA space. */
+void * dvma_malloc __P((size_t bytes));
+void dvma_free(void *addr, size_t bytes);
+
+/* Remap/unmap kernel memory in DVMA space. */
+void * dvma_mapin __P((void *kva, int len, int canwait));
+void dvma_mapout __P((void *dvma_addr, int len));
+
+/* Convert a kernel DVMA pointer to a slave address. */
+u_long dvma_kvtopa __P((void *kva, int bus));
+
diff -r 518674ef7e2b -r baebcecedeca sys/arch/sun2/include/param.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/sun2/include/param.h     Thu Mar 29 04:35:09 2001 +0000
@@ -0,0 +1,107 @@
+/*     $NetBSD: param.h,v 1.1 2001/03/29 04:35:09 fredette Exp $       */
+
+/*
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1982, 1986, 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. 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: machparam.h 1.16 92/12/20
+ *     from: @(#)param.h       8.1 (Berkeley) 6/10/93
+ */
+
+#ifndef        _MACHINE_PARAM_H_
+#define        _MACHINE_PARAM_H_
+
+/*
+ * Machine dependent constants for the Sun2 series.
+ */
+#define        _MACHINE        sun2
+#define        MACHINE         "sun2"
+#define        _MACHINE_ARCH   m68000
+#define        MACHINE_ARCH    "m68000"
+#define        MID_MACHINE     MID_M680002K
+
+#ifdef MSGBUFSIZE
+#error "MSGBUFSIZE is not user-adjustable for this arch"
+#endif
+#define MSGBUFOFF      0x200
+#define MSGBUFSIZE     (NBPG - MSGBUFOFF)
+
+/* This is needed by ps (actually USPACE). */
+#define        UPAGES          (16384 / NBPG)          /* pages of u-area */
+
+#if defined(_KERNEL) || defined(_STANDALONE)
+
+#define        KERNBASE        0x00008000      /* start of kernel virtual */
+#define        KERNTEXTOFF     0x0000C000      /* start of kernel text */
+#define        KERN_END        0x00E00000      /* end of kernel virtual */
+
+#define PGSHIFT                11              /* LOG2(NBPG) */
+#define SEGSHIFT       15              /* LOG2(NBSG) */
+#define NBSG           (1 << SEGSHIFT) /* bytes/segment */
+#define        SEGOFSET        (NBSG-1)        /* byte offset into segment */
+
+#define        MAXBSIZE        0x2000          /* max FS block size */
+
+/*
+ * XXX fredette - we force a small number of mbuf clusters and cluster
+ * size to help me debug this on my low-memory machine.  These should
+ * go away at some point.
+ */
+#define        NMBCLUSTERS     64      /* map size, max cluster allocation */
+#define MCLSHIFT       10
+
+#endif /* _KERNEL */
+
+#include <m68k/param.h>
+
+/*
+ * Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized
+ * logical pages.
+ */
+#define        NKMEMPAGES_MIN_DEFAULT  ((3 * 1024 * 1024) >> PAGE_SHIFT)
+#define        NKMEMPAGES_MAX_DEFAULT  ((3 * 1024 * 1024) >> PAGE_SHIFT)
+
+#if defined(_KERNEL) && !defined(_LOCORE)
+
+/* XXX - Does this really belong here? -gwr */
+#include <machine/psl.h>
+
+extern void _delay __P((unsigned));
+#define delay(us)      _delay((us)<<8)
+#define        DELAY(n)        delay(n)
+
+#endif /* _KERNEL && !_LOCORE */
+#endif /* !_MACHINE_PARAM_H_ */
diff -r 518674ef7e2b -r baebcecedeca sys/arch/sun2/include/pmap.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/sun2/include/pmap.h      Thu Mar 29 04:35:09 2001 +0000
@@ -0,0 +1,115 @@
+/*     $NetBSD: pmap.h,v 1.1 2001/03/29 04:44:20 fredette Exp $        */
+
+/*-
+ * Copyright (c) 1998 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * 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 NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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_PMAP_H
+#define        _MACHINE_PMAP_H
+
+/*
+ * NB:  The details of struct pmap are exposed ONLY when
+ * building a kernel.  LKMs and user-level programs see
+ * only this anonymous declaration.  Note that the actual
+ * declaration may vary on different m68k kernels.
+ */
+struct pmap;
+typedef struct pmap *pmap_t;
+
+/*
+ * Physical map structures exported to the VM code.
+ * XXX - Does user-level code really see this struct?
+ */
+
+struct pmap {
+       unsigned char           *pm_segmap;     /* soft copy of segmap */
+       int                     pm_ctxnum;      /* MMU context number */
+       simple_lock_data_t      pm_lock;        /* lock on pmap */
+       int                     pm_refcount;    /* reference count */
+       int                     pm_version;
+};
+
+#ifdef _KERNEL
+extern struct pmap     kernel_pmap_store;
+#define        pmap_kernel()   (&kernel_pmap_store)
+
+/*
+ * We give the pmap code a chance to resolve faults by
+ * reloading translations that it was forced to unload.
+ * This function does that, and calls vm_fault if it
+ * could not resolve the fault by reloading the MMU.
+ */
+int _pmap_fault __P((vm_map_t, vm_offset_t, vm_prot_t));
+
+/* This lets us have some say in choosing VA locations. */
+extern void pmap_prefer(vm_offset_t, vm_offset_t *);
+#define PMAP_PREFER(fo, ap) pmap_prefer((fo), (ap))
+
+/* This needs to be a macro for kern_sysctl.c */
+extern segsz_t pmap_resident_pages(pmap_t);
+#define        pmap_resident_count(pmap)       (pmap_resident_pages(pmap))
+
+/* This needs to be a macro for vm_mmap.c */
+extern segsz_t pmap_wired_pages(pmap_t);
+#define        pmap_wired_count(pmap)  (pmap_wired_pages(pmap))
+
+/* We use the PA plus some low bits for device mmap. */
+#define pmap_phys_address(addr)        (addr)
+
+/* Our memory is contiguous (or nearly so). */
+#define pmap_page_index(pa) (atop(pa))
+
+/* Map a given physical region to a virtual region */
+extern vm_offset_t pmap_map __P((vm_offset_t, vm_offset_t, vm_offset_t, int));