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authorTobias Weingartner <weingart@cvs.openbsd.org>1998-02-24 22:07:47 +0000
committerTobias Weingartner <weingart@cvs.openbsd.org>1998-02-24 22:07:47 +0000
commit66ccb35cbbbd1561eb833f1c209a4acd4fb24644 (patch)
tree9d3cca5013a166c36028a2613491242866df2e8b /sys
parent0bb9b7b7dca2172711ad9e6d3a1f6326861f5583 (diff)
Ooops, forgot these two here.
Diffstat (limited to 'sys')
-rw-r--r--sys/arch/i386/stand/libsa/pciprobe.c74
-rw-r--r--sys/arch/i386/stand/libsa/smpprobe.c154
2 files changed, 228 insertions, 0 deletions
diff --git a/sys/arch/i386/stand/libsa/pciprobe.c b/sys/arch/i386/stand/libsa/pciprobe.c
new file mode 100644
index 00000000000..7ba6d2cda55
--- /dev/null
+++ b/sys/arch/i386/stand/libsa/pciprobe.c
@@ -0,0 +1,74 @@
+/* $OpenBSD: pciprobe.c,v 1.1 1998/02/24 22:07:46 weingart Exp $ */
+
+/*
+ * Copyright (c) 1997 Tobias Weingartner
+ * 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 Tobias Weingartner.
+ * 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 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.
+ *
+ */
+
+#include <sys/param.h>
+#include <stand/boot/bootarg.h>
+#include <machine/biosvar.h>
+#include "libsa.h"
+
+#define PCI_SIG 0x20494350 /* PCI Signature */
+
+void
+pciprobe()
+{
+ bios_pciinfo_t bpi;
+ u_int32_t hw_chars, rev, rc, sig;
+ u_int32_t entry32;
+
+ /* PCI BIOS v2.0c+ - Installation Check */
+ __asm __volatile(DOINT(0x1A) ";shll $8,%2; setc %b2"
+ : "=a" (hw_chars), "=b" (rev), "=c" (rc),
+ "=d" (sig), "=D" (entry32)
+ : "0" (0xB101), "D" (0x0)
+ : "cc", "eax", "ebx", "ecx", "edx");
+
+ if (rc & 0xff00 || hw_chars & 0xff00)
+ return;
+ if (sig != PCI_SIG)
+ return;
+
+ printf(" pci");
+#ifdef DEBUG
+ printf("[ver %d.%d, %x 0x%x %d]", (rev>>8)&0xFF, (rev&0xFF),
+ hw_chars, entry32, (rc>>8)&0xFF);
+#endif
+
+ bpi.pci_chars = hw_chars & 0xFFFF;
+ bpi.pci_rev = rev & 0xFFFF;
+ bpi.pci_entry32 = entry32;
+ bpi.pci_lastbus = (rc>>8) & 0xFF;
+
+ addbootarg(BOOTARG_PCIINFO, sizeof(bios_pciinfo_t), &bpi);
+}
+
diff --git a/sys/arch/i386/stand/libsa/smpprobe.c b/sys/arch/i386/stand/libsa/smpprobe.c
new file mode 100644
index 00000000000..1659acd6651
--- /dev/null
+++ b/sys/arch/i386/stand/libsa/smpprobe.c
@@ -0,0 +1,154 @@
+/* $OpenBSD: smpprobe.c,v 1.1 1998/02/24 22:07:46 weingart Exp $ */
+
+/*
+ * Copyright (c) 1997 Tobias Weingartner
+ * 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 Tobias Weingartner.
+ * 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 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.
+ *
+ */
+
+#include <sys/param.h>
+#include <machine/biosvar.h>
+#include "libsa.h"
+
+extern u_int cnvmem, extmem;
+#define MP_FLOAT_SIG 0x5F504D5F /* _MP_ */
+#define MP_CONF_SIG 0x504D4350 /* PCMP */
+
+typedef struct _mp_float {
+ u_int32_t signature;
+ u_int32_t conf_addr;
+ u_int8_t length;
+ u_int8_t spec_rev;
+ u_int8_t checksum;
+ u_int8_t feature[5];
+} mp_float_t;
+
+
+static int
+mp_checksum(ptr, len)
+ u_int8_t *ptr;
+ int len;
+{
+ int i, sum = 0;
+
+#ifdef DEBUG
+ printf("Checksum %p for %d\n", ptr, len);
+#endif
+
+ for(i = 0; i < len; i++){
+ sum += *(ptr + i);
+ }
+ sum &= 0xFF;
+
+ return(!sum);
+}
+
+
+static mp_float_t *
+mp_probefloat(ptr, len)
+ u_int8_t *ptr;
+ int len;
+{
+ mp_float_t *mpp = NULL;
+ int i;
+
+#ifdef DEBUG
+ printf("Checking %p for %d\n", ptr, len);
+#endif
+ for(i = 0; i < 1024; i++){
+ mp_float_t *tmp = (mp_float_t*)(ptr + i);
+ if(tmp->signature == MP_FLOAT_SIG){
+ printf("Found possible MP signature at: %p\n", ptr);
+
+ mpp = tmp;
+ break;
+ }
+ if((tmp->signature == MP_FLOAT_SIG) &&
+ mp_checksum(tmp, tmp->length*16)){
+
+#ifdef DEBUG
+ printf("Found valid MP signature at: %p\n", ptr);
+#endif
+ mpp = tmp;
+ break;
+ }
+ }
+
+ return(mpp);
+}
+
+
+void
+smpprobe()
+{
+ u_int32_t *ptr;
+ u_int16_t *seg;
+ mp_float_t *mp = NULL;
+
+ /* Check EBDA */
+ seg = (void *)((0x40 * 16) + 0x0E); /* 40:0E */
+ ptr = (void *)((*seg) * 16); /* Segment => Linear */
+ mp = mp_probefloat(ptr, 1024);
+
+ /* Check BIOS ROM 0xE0000 - 0xFFFFF */
+ ptr = (void *)(0xE0000);
+ mp = mp_probefloat(ptr, 0x1FFFF);
+ if(mp) goto end;
+
+ /* Check last 1K of base RAM */
+ ptr = (void *)(cnvmem * 1024);
+ mp = mp_probefloat(ptr, 1024);
+ if(mp) goto end;
+
+ /* Check last 1K of extended RAM */
+ ptr = (void *)(extmem * 1024 - 1024); /* XXX */
+ mp = mp_probefloat(ptr, 1024);
+ if(mp) goto end;
+
+ /* No valid MP signature found */
+#if DEBUG
+ printf("No valid MP signature found.\n");
+#endif
+ return;
+
+ /* Valid MP signature found */
+end:
+ printf(" smp");
+#if DEBUG
+ printf("Floating Structure:\n");
+ printf("\tSignature: %x\n", mp->signature);
+ printf("\tConfig at: %x\n", mp->conf_addr);
+ printf("\tLength: %d\n", mp->length);
+ printf("\tRev: 1.%d\n", mp->spec_rev);
+ printf("\tFeature: %x %x %x %x %x\n",
+ mp->feature[0], mp->feature[1], mp->feature[2],
+ mp->feature[3], mp->feature[4]);
+#endif
+}
+