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openwrt-xburst/target/linux/adm5120/patches-2.6.32/400-revert-mips-machine-update.patch
juhosg 22b785a14d generic: merge mips multi machine update to generic patches for 2.6.32
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21673 3c298f89-4303-0410-b956-a3cf2f4a3e73
2010-06-04 19:09:46 +00:00

232 lines
6.3 KiB
Diff

--- a/arch/mips/include/asm/mips_machine.h
+++ b/arch/mips/include/asm/mips_machine.h
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
@@ -13,42 +13,35 @@
#include <linux/init.h>
#include <linux/list.h>
-#include <asm/bootinfo.h>
-
struct mips_machine {
unsigned long mach_type;
- const char *mach_id;
- const char *mach_name;
void (*mach_setup)(void);
+ char *mach_name;
+ struct list_head list;
};
-#define MIPS_MACHINE(_type, _id, _name, _setup) \
-static const char machine_name_##_type[] __initconst \
- __aligned(1) = _name; \
-static const char machine_id_##_type[] __initconst \
- __aligned(1) = _id; \
-static struct mips_machine machine_##_type \
- __used __section(.mips.machines.init) = \
+void mips_machine_register(struct mips_machine *) __init;
+void mips_machine_setup(unsigned long machtype) __init;
+void mips_machine_set_name(char *name) __init;
+
+extern char *mips_machine_name;
+
+#define MIPS_MACHINE(_type, _name, _setup) \
+static char machine_name_##_type[] __initdata = _name; \
+static struct mips_machine machine_##_type __initdata = \
{ \
.mach_type = _type, \
- .mach_id = machine_id_##_type, \
.mach_name = machine_name_##_type, \
.mach_setup = _setup, \
-};
-
-extern long __mips_machines_start;
-extern long __mips_machines_end;
-
-#ifdef CONFIG_MIPS_MACHINE
-int mips_machtype_setup(char *id) __init;
-void mips_machine_setup(void) __init;
-void mips_set_machine_name(const char *name) __init;
-char *mips_get_machine_name(void);
-#else
-static inline int mips_machtype_setup(char *id) { return 1; }
-static inline void mips_machine_setup(void) { }
-static inline void mips_set_machine_name(const char *name) { }
-static inline char *mips_get_machine_name(void) { return NULL; }
-#endif /* CONFIG_MIPS_MACHINE */
+}; \
+ \
+static int __init register_machine_##_type(void) \
+{ \
+ mips_machine_register(&machine_##_type); \
+ return 0; \
+} \
+ \
+pure_initcall(register_machine_##_type)
#endif /* __ASM_MIPS_MACHINE_H */
+
--- a/arch/mips/kernel/mips_machine.c
+++ b/arch/mips/kernel/mips_machine.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
@@ -7,77 +7,68 @@
*
*/
#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/slab.h>
#include <asm/mips_machine.h>
+#include <asm/bootinfo.h>
-static struct mips_machine *mips_machine __initdata;
-static char *mips_machine_name = "Unknown";
+static struct list_head mips_machines __initdata =
+ LIST_HEAD_INIT(mips_machines);
-#define for_each_machine(mach) \
- for ((mach) = (struct mips_machine *)&__mips_machines_start; \
- (mach) && \
- (unsigned long)(mach) < (unsigned long)&__mips_machines_end; \
- (mach)++)
+char *mips_machine_name = "Unknown";
-__init void mips_set_machine_name(const char *name)
+static struct mips_machine * __init mips_machine_find(unsigned long machtype)
{
- char *p;
+ struct list_head *this;
- if (name == NULL)
- return;
+ list_for_each(this, &mips_machines) {
+ struct mips_machine *mach;
- p = kstrdup(name, GFP_KERNEL);
- if (!p)
- pr_err("MIPS: no memory for machine_name\n");
+ mach = list_entry(this, struct mips_machine, list);
+ if (mach->mach_type == machtype)
+ return mach;
+ }
- mips_machine_name = p;
+ return NULL;
}
-char *mips_get_machine_name(void)
+void __init mips_machine_register(struct mips_machine *mach)
{
- return mips_machine_name;
+ list_add_tail(&mach->list, &mips_machines);
}
-__init int mips_machtype_setup(char *id)
+void __init mips_machine_set_name(char *name)
{
- struct mips_machine *mach;
+ unsigned int len;
+ char *p;
- for_each_machine(mach) {
- if (mach->mach_id == NULL)
- continue;
-
- if (strcmp(mach->mach_id, id) == 0) {
- mips_machine = mach;
- break;
- }
- }
+ if (name == NULL)
+ return;
- if (!mips_machine) {
- pr_err("MIPS: no machine found for id '%s', supported machines:\n",
- id);
- pr_err("%32s %s\n", "id", "name");
- for_each_machine(mach)
- pr_err("%32s %s\n", mach->mach_id, mach->mach_name);
- return 1;
+ len = strlen(name);
+ p = kmalloc(len + 1, GFP_KERNEL);
+ if (p) {
+ strncpy(p, name, len);
+ p[len] = '\0';
+ mips_machine_name = p;
+ } else {
+ printk(KERN_WARNING "MIPS: no memory for machine_name\n");
}
-
- mips_machtype = mips_machine->mach_type;
-
- return 0;
}
-__setup("machtype=", mips_machtype_setup);
-
-__init void mips_machine_setup(void)
+void __init mips_machine_setup(unsigned long machtype)
{
- if (!mips_machine)
+ struct mips_machine *mach;
+
+ mach = mips_machine_find(machtype);
+ if (!mach) {
+ printk(KERN_ALERT "MIPS: no machine registered for "
+ "machtype %lu\n", machtype);
return;
+ }
- mips_set_machine_name(mips_machine->mach_name);
- pr_info("MIPS: machine is %s\n", mips_machine_name);
+ mips_machine_set_name(mach->mach_name);
+ printk(KERN_INFO "MIPS: machine is %s\n", mips_machine_name);
- if (mips_machine->mach_setup)
- mips_machine->mach_setup();
+ if (mach->mach_setup)
+ mach->mach_setup();
}
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -34,9 +34,9 @@ static int show_cpuinfo(struct seq_file
*/
if (n == 0) {
seq_printf(m, "system type\t\t: %s\n", get_system_type());
- if (mips_get_machine_name())
- seq_printf(m, "machine\t\t\t: %s\n",
- mips_get_machine_name());
+#ifdef CONFIG_MIPS_MACHINE
+ seq_printf(m, "machine\t\t\t: %s\n", mips_machine_name);
+#endif
}
seq_printf(m, "processor\t\t: %ld\n", n);
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -97,13 +97,6 @@ SECTIONS
INIT_TEXT_SECTION(PAGE_SIZE)
INIT_DATA_SECTION(16)
- . = ALIGN(4);
- .mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) {
- __mips_machines_start = .;
- *(.mips.machines.init)
- __mips_machines_end = .;
- }
-
/* .exit.text is discarded at runtime, not link time, to deal with
* references from .rodata
*/