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[src/trunk]: src/sys/arch/luna68k Add support to pass boothowto and bootdev i...
details: https://anonhg.NetBSD.org/src/rev/8b67c5471e1b
branches: trunk
changeset: 792643:8b67c5471e1b
user: tsutsui <tsutsui%NetBSD.org@localhost>
date: Sat Jan 11 08:07:16 2014 +0000
description:
Add support to pass boothowto and bootdev info from bootloader to kernel.
Kernel side changes:
- use %d7 (boothowto) and %d6 (bootdev) to pass info and also use
old macro in <sys/reboot.h> as ancient 4.4BSD did for simplicity
- add <machine/bootinfo.h> to define values as API to pass these info
- save boothowto and bootdev in registers right after zero'ing bss
- add MD device_register(9) to check booted_device per passed bootdev info
- merge old bootarg checks in rootconf() and luna68k_init() with
tweaks for backward compatibility
(direct boot a.out kernel from ROM monitor without bootloader still works)
diffstat:
sys/arch/luna68k/include/bootinfo.h | 51 ++++++++++++++++++++
sys/arch/luna68k/luna68k/autoconf.c | 90 ++++++++++++++++++++++++++++--------
sys/arch/luna68k/luna68k/locore.s | 12 ++--
sys/arch/luna68k/luna68k/machdep.c | 44 +++++++++++++----
4 files changed, 158 insertions(+), 39 deletions(-)
diffs (truncated from 303 to 300 lines):
diff -r 5e0e2fda0ceb -r 8b67c5471e1b sys/arch/luna68k/include/bootinfo.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/luna68k/include/bootinfo.h Sat Jan 11 08:07:16 2014 +0000
@@ -0,0 +1,51 @@
+/* $NetBSD: bootinfo.h,v 1.1 2014/01/11 08:07:16 tsutsui Exp $ */
+
+/*-
+ * Copyright (c) 2014 Izumi Tsutsui. 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.
+ *
+ * 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.
+ */
+
+#ifndef __LUNA68K_BOOTINFO_H_
+#define __LUNA68K_BOOTINFO_H_
+
+/*
+ * see also MAKEBOOTDEV macro in <sys/reboot.h>
+ *
+ * ADAPTOR: SPC or LANCE
+ * CONTROLLER: SPC and LANCE unit number
+ * UNIT: SCSI ID of SPC devices (XXX: no LUN support)
+ * PARTITION: booted partition of the boot disk
+ * TYPE: unused
+ */
+
+#define LUNA68K_BOOTADPT_SPC 0
+#define LUNA68K_BOOTADPT_LANCE 1
+
+#define LUNA68K_BOOTADPT_SPC0_PA 0xe1000000
+#define LUNA68K_BOOTADPT_SPC1_PA 0xe1000040
+#define LUNA68K_BOOTADPT_LANCE0_PA 0xf1000000
+
+#ifdef _KERNEL
+extern uint32_t bootdev;
+#endif
+
+#endif /* __LUNA68K_BOOTINFO_H_ */
diff -r 5e0e2fda0ceb -r 8b67c5471e1b sys/arch/luna68k/luna68k/autoconf.c
--- a/sys/arch/luna68k/luna68k/autoconf.c Sat Jan 11 02:45:52 2014 +0000
+++ b/sys/arch/luna68k/luna68k/autoconf.c Sat Jan 11 08:07:16 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: autoconf.c,v 1.14 2012/10/13 06:16:19 tsutsui Exp $ */
+/* $NetBSD: autoconf.c,v 1.15 2014/01/11 08:07:16 tsutsui Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
@@ -31,7 +31,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
-__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.14 2012/10/13 06:16:19 tsutsui Exp $");
+__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.15 2014/01/11 08:07:16 tsutsui Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -40,19 +40,33 @@
#include <sys/reboot.h>
#include <sys/device.h>
+#include <machine/autoconf.h>
+#include <machine/bootinfo.h>
#include <machine/disklabel.h>
#include <machine/cpu.h>
+#include <dev/scsipi/scsi_all.h>
+#include <dev/scsipi/scsipi_all.h>
+#include <dev/scsipi/scsiconf.h>
+
#include <luna68k/luna68k/isr.h>
+static uint booted_adpt, booted_ctlr, booted_unit, booted_part;
+
/*
* Determine mass storage and memory configuration for a machine.
*/
void
cpu_configure(void)
{
+
booted_device = NULL; /* set by device drivers (if found) */
+ booted_adpt = B_ADAPTOR(bootdev);
+ booted_ctlr = B_CONTROLLER(bootdev);
+ booted_unit = B_UNIT(bootdev);
+ booted_part = B_PARTITION(bootdev);
+
(void)splhigh();
isrinit();
if (config_rootfound("mainbus", NULL) == NULL)
@@ -62,28 +76,62 @@
}
void
+device_register(device_t dev, void *aux)
+{
+ static device_t booted_controller;
+ static bool bootdev_found;
+
+ /*
+ * Check booted device.
+ */
+ if (bootdev_found)
+ return;
+
+ if (booted_adpt == LUNA68K_BOOTADPT_LANCE &&
+ device_is_a(dev, "le")) {
+ struct mainbus_attach_args *ma = aux;
+
+ if (booted_ctlr == 0 &&
+ ma->ma_addr == LUNA68K_BOOTADPT_LANCE0_PA) {
+ booted_device = dev;
+ bootdev_found = true;
+ }
+ return;
+ }
+
+ if (booted_adpt == LUNA68K_BOOTADPT_SPC &&
+ device_is_a(dev, "spc")) {
+ struct mainbus_attach_args *ma = aux;
+
+ if ((booted_ctlr == 0 &&
+ (u_int)ma->ma_addr == LUNA68K_BOOTADPT_SPC0_PA) ||
+ (booted_ctlr == 1 &&
+ (u_int)ma->ma_addr == LUNA68K_BOOTADPT_SPC1_PA)) {
+ booted_controller = dev;
+ }
+ return;
+ }
+
+ if (booted_controller != NULL &&
+ (device_is_a(dev, "sd") || device_is_a(dev, "cd"))) {
+ struct scsipibus_attach_args *sa = aux;
+ device_t parent = device_parent(dev);
+
+ if (device_parent(parent) != booted_controller)
+ return;
+ if (booted_unit != sa->sa_periph->periph_target)
+ return;
+ booted_device = dev;
+ booted_partition = booted_part;
+ bootdev_found = true;
+ return;
+ }
+}
+
+void
cpu_rootconf(void)
{
-#if 1 /* XXX to be reworked with helps of 2nd stage loaders XXX */
- int i;
- const char *devname;
- char *cp;
- extern char bootarg[64];
- cp = bootarg;
- devname = "sd0";
- for (i = 0; i < sizeof(bootarg); i++) {
- if (*cp == '\0')
- break;
- if (*cp == 'E' && memcmp("ENADDR=", cp, 7) == 0) {
- devname = "le0";
- break;
- }
- cp++;
- }
- booted_device = device_find_by_xname(devname);
-
-#endif
printf("boot device: %s\n",
(booted_device) ? device_xname(booted_device) : "<unknown>");
diff -r 5e0e2fda0ceb -r 8b67c5471e1b sys/arch/luna68k/luna68k/locore.s
--- a/sys/arch/luna68k/luna68k/locore.s Sat Jan 11 02:45:52 2014 +0000
+++ b/sys/arch/luna68k/luna68k/locore.s Sat Jan 11 08:07:16 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: locore.s,v 1.53 2013/09/23 17:02:18 tsutsui Exp $ */
+/* $NetBSD: locore.s,v 1.54 2014/01/11 08:07:16 tsutsui Exp $ */
/*
* Copyright (c) 1988 University of Utah.
@@ -102,12 +102,6 @@
ASRELOC(tmpstk,%a0)
movl %a0,%sp | give ourselves a temporary stack
-#if 0 /* not sure useful values, need a bootloader tailored for us */
- RELOC(boothowto,%a0)
- movl %d7,%a0@ | save boothowto
- RELOC(bootdev,%a0)
- movl %d6,%a0@ | save bootdev
-#endif
RELOC(edata,%a0) | clear out BSS
movl #_C_LABEL(end)-4,%d0 | (must be <= 256 kB)
subl #_C_LABEL(edata),%d0
@@ -115,6 +109,10 @@
1: clrl %a0@+
dbra %d0,1b
+ RELOC(boothowto,%a0)
+ movl %d7,%a0@ | save boothowto
+ RELOC(bootdev,%a0)
+ movl %d6,%a0@ | save bootdev
RELOC(lowram,%a0)
movl %a5,%a0@ | store start of physical memory
diff -r 5e0e2fda0ceb -r 8b67c5471e1b sys/arch/luna68k/luna68k/machdep.c
--- a/sys/arch/luna68k/luna68k/machdep.c Sat Jan 11 02:45:52 2014 +0000
+++ b/sys/arch/luna68k/luna68k/machdep.c Sat Jan 11 08:07:16 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: machdep.c,v 1.95 2013/01/26 15:46:24 tsutsui Exp $ */
+/* $NetBSD: machdep.c,v 1.96 2014/01/11 08:07:16 tsutsui Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
@@ -31,7 +31,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
-__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.95 2013/01/26 15:46:24 tsutsui Exp $");
+__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.96 2014/01/11 08:07:16 tsutsui Exp $");
#include "opt_ddb.h"
#include "opt_kgdb.h"
@@ -75,6 +75,7 @@
#include <sys/sysctl.h>
+#include <machine/bootinfo.h>
#include <machine/cpu.h>
#include <machine/reg.h>
#include <machine/pcb.h>
@@ -194,8 +195,25 @@
sw1 ^= 0xff;
sysconsole = !(sw1 & 0x2); /* console selection */
+ /*
+ * Check if boothowto and bootdev values are passed by our bootloader.
+ */
+ if ((bootdev & B_MAGICMASK) == B_DEVMAGIC) {
+ /* Valid value is set; no need to parse bootarg. */
+ return;
+ }
+
+ /*
+ * No valid bootdev value is set.
+ * Assume we are booted by ROM monitor directly using a.out kernel
+ * and we have to parse bootarg passed from the monitor to set
+ * proper boothowto and check netboot.
+ */
+
+ /* set default to "sd0a" with no howto flags */
+ bootdev = MAKEBOOTDEV(0, LUNA68K_BOOTADPT_SPC, 0, 0, 0);
boothowto = 0;
- i = 0;
+
/*
* 'bootarg' on LUNA has:
* "<args of x command> ENADDR=<addr> HOST=<host> SERVER=<name>"
@@ -207,15 +225,19 @@
*
* NetBSD/luna68k cares only the first argment; any of "sda".
*/
- for (cp = bootarg; *cp != ' ' && *cp != 0; cp++) {
- BOOT_FLAG(*cp, boothowto);
- if (i++ >= sizeof(bootarg))
- break;
+ bootarg[63] = '\0';
+ for (cp = bootarg; *cp != '\0'; cp++) {
+ if (*cp == '-') {
+ char c;
+ while ((c = *cp) != '\0' && c != ' ') {
+ BOOT_FLAG(c, boothowto);
+ cp++;
+ }
+ } else if (*cp == 'E' && memcmp("ENADDR=", cp, 7) == 0) {
+ bootdev =
+ MAKEBOOTDEV(0, LUNA68K_BOOTADPT_LANCE, 0, 0, 0);
+ }
}
-#if 0 /* overload 1:sw1, which now means 'go ROM monitor' after poweron */
- if (boothowto == 0)
- boothowto = (sw1 & 0x1) ? RB_SINGLE : 0;
-#endif
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