[src/nathanw_sa]: src/sys/arch/vax/vax Detect MicroVAX 3100/m80 correctly. Fr...

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

details:   https://anonhg.NetBSD.org/src/rev/9947831742cd
branches:  nathanw_sa
changeset: 504713:9947831742cd
user:      ragge <ragge%NetBSD.org@localhost>
date:      Tue Jun 05 11:25:12 2001 +0000

description:
Detect MicroVAX 3100/m80 correctly. From Michael Kukat.

diffstat:

 sys/arch/vax/vax/ka46.c |  174 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 174 insertions(+), 0 deletions(-)

diffs (178 lines):

diff -r 8396d8cef51d -r 9947831742cd sys/arch/vax/vax/ka46.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/vax/vax/ka46.c   Tue Jun 05 11:25:12 2001 +0000
@@ -0,0 +1,174 @@
+/*     $NetBSD: ka46.c,v 1.17.8.2 2001/06/05 11:25:12 ragge Exp $ */
+/*
+ * Copyright (c) 1998 Ludd, University of Lule}, Sweden.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Ludd by Bertram Barth.
+ *
+ * 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 at Ludd, University of 
+ *     Lule}, Sweden and its contributors.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/device.h>
+#include <sys/kernel.h>
+#include <sys/systm.h>
+
+#include <uvm/uvm_extern.h>
+
+#include <machine/pte.h>
+#include <machine/cpu.h>
+#include <machine/mtpr.h>
+#include <machine/sid.h>
+#include <machine/pmap.h>
+#include <machine/nexus.h>
+#include <machine/uvax.h>
+#include <machine/ka410.h>
+#include <machine/ka420.h>
+#include <machine/ka46.h>
+#include <machine/clock.h>
+#include <machine/vsbus.h>
+
+static void    ka46_conf(void);
+static void    ka46_steal_pages(void);
+static void    ka46_memerr(void);
+static int     ka46_mchk(caddr_t);
+static void    ka46_halt(void);
+static void    ka46_reboot(int);
+static void    ka46_cache_enable(void);
+
+struct vs_cpu *ka46_cpu;
+
+/* 
+ * Declaration of 46-specific calls.
+ */
+struct cpu_dep ka46_calls = {
+       ka46_steal_pages,
+       ka46_mchk,
+       ka46_memerr, 
+       ka46_conf,
+       chip_clkread,
+       chip_clkwrite,
+       12,      /* ~VUPS */
+       2,      /* SCB pages */
+       ka46_halt,
+       ka46_reboot,
+       NULL,
+       NULL,
+       CPU_RAISEIPL,
+};
+
+
+void
+ka46_conf()
+{
+       switch(vax_siedata & 0x3) {
+               case 1: printf("cpu0: KA47\n"); break;
+               case 2: printf("cpu0: KA46\n"); break;
+               default: printf("cpu0: unknown KA46-type\n"); break;
+       }
+       ka46_cpu = (void *)vax_map_physmem(VS_REGS, 1);
+       printf("cpu: turning on floating point chip\n");
+       mtpr(2, PR_ACCS); /* Enable floating points */
+       /*
+        * Setup parameters necessary to read time from clock chip.
+        */
+       clk_adrshift = 1;       /* Addressed at long's... */
+       clk_tweak = 2;          /* ...and shift two */
+       clk_page = (short *)vax_map_physmem(VS_CLOCK, 1);
+}
+
+void
+ka46_cache_enable()
+{
+       int i, *tmp;
+
+       /* Disable caches */
+       *(int *)KA46_CCR &= ~CCR_SPECIO;/* secondary */
+       mtpr(PCSTS_FLUSH, PR_PCSTS);    /* primary */
+       *(int *)KA46_BWF0 &= ~BWF0_FEN; /* invalidate filter */
+
+       /* Clear caches */
+       tmp = (void *)KA46_INVFLT;      /* inv filter */
+       for (i = 0; i < 32768; i++)
+               tmp[i] = 0;
+
+       /* Write valid parity to all primary cache entries */
+       for (i = 0; i < 256; i++) {
+               mtpr(i << 3, PR_PCIDX);
+               mtpr(PCTAG_PARITY, PR_PCTAG);
+       }
+
+       /* Secondary cache */
+       tmp = (void *)KA46_TAGST;
+       for (i = 0; i < KA46_TAGSZ*2; i+=2)
+               tmp[i] = 0;
+
+       /* Enable cache */
+       *(int *)KA46_BWF0 |= BWF0_FEN; /* invalidate filter */
+       mtpr(PCSTS_ENABLE, PR_PCSTS);
+       *(int *)KA46_CCR = CCR_SPECIO | CCR_CENA;
+}
+
+void
+ka46_memerr()
+{
+       printf("Memory err!\n");
+}
+
+int
+ka46_mchk(caddr_t addr)
+{
+       panic("Machine check");
+       return 0;
+}
+
+void
+ka46_steal_pages()
+{
+
+       /* Turn on caches (to speed up execution a bit) */
+       ka46_cache_enable();
+}
+
+#define        KA46_CPMBX      0x38
+#define KA46_HLT_HALT  0xcf
+#define KA46_HLT_BOOT  0x8b
+
+static void
+ka46_halt()
+{
+       ((u_int8_t *) clk_page)[KA46_CPMBX] = KA46_HLT_HALT;
+       asm("halt");
+}
+
+static void
+ka46_reboot(int arg)
+{
+       ((u_int8_t *) clk_page)[KA46_CPMBX] = KA46_HLT_BOOT;
+       asm("halt");
+}