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
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
hwtest.h
/* Routines to test for presence/absence of hardware registers:
* see arch/m68k/mm/hwtest.c.
* -- PMM <pmaydell@chiark.greenend.org.uk> 05/1998
*
* Removed __init from decls. We might want them in modules, and
* the code is tiny anyway. 16/5/98 pb
*/
#ifndef __ASM_HWTEST_H
#define __ASM_HWTEST_H
extern int hwreg_present(volatile void *regp);
extern int hwreg_write(volatile void *regp, unsigned short val);
#endif
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