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Revision 9e3a9d1ed8cc8db93e5c53e9a5b09065bd95de8b authored by Len Brown on 06 February 2009, 19:00:56 UTC, committed by Len Brown on 06 February 2009, 19:00:56 UTC 
ACPI: disable ACPI cleanly when bad RSDP found
 
When ACPI is disabled in the BIOS of this VIA C3 box,
it invalidates the RSDP, which Linux notices:

ACPI Error (tbxfroot-0218): A valid RSDP was not found [20080926]

Bug Linux neglected to disable ACPI at that stage,
and later scribbled on smp_found_config:

ACPI: No APIC-table, disabling MPS

But this box doesn't run well in legacy PIC mode,
it needed IOAPIC mode to perform correctly:

http://lkml.org/lkml/2009/2/5/39

So exit ACPI mode cleanly when we first detect
that it is hopeless.

Signed-off-by: Len Brown <len.brown@intel.com>
1 parent f3b39f1
Raw File
module.h 
#ifndef _ASM_M68K_MODULE_H
#define _ASM_M68K_MODULE_H

struct mod_arch_specific {
	struct m68k_fixup_info *fixup_start, *fixup_end;
};

#define MODULE_ARCH_INIT {				\
	.fixup_start		= __start_fixup,	\
	.fixup_end		= __stop_fixup,		\
}

#define Elf_Shdr Elf32_Shdr
#define Elf_Sym Elf32_Sym
#define Elf_Ehdr Elf32_Ehdr


enum m68k_fixup_type {
	m68k_fixup_memoffset,
	m68k_fixup_vnode_shift,
};

struct m68k_fixup_info {
	enum m68k_fixup_type type;
	void *addr;
};

#define m68k_fixup(type, addr)			\
	"	.section \".m68k_fixup\",\"aw\"\n"	\
	"	.long " #type "," #addr "\n"	\
	"	.previous\n"

extern struct m68k_fixup_info __start_fixup[], __stop_fixup[];

struct module;
extern void module_fixup(struct module *mod, struct m68k_fixup_info *start,
			 struct m68k_fixup_info *end);

#endif /* _ASM_M68K_MODULE_H */
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