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
q40ints.h
/*
* contains some Q40 related interrupt definitions
*/
#define Q40_IRQ_MAX (34)
#define Q40_IRQ_SAMPLE (34)
#define Q40_IRQ_KEYBOARD (32)
#define Q40_IRQ_FRAME (33)
/* masks for interrupt regiosters*/
/* internal, IIRQ_REG */
#define Q40_IRQ_KEYB_MASK (2)
#define Q40_IRQ_SER_MASK (1<<2)
#define Q40_IRQ_FRAME_MASK (1<<3)
#define Q40_IRQ_EXT_MASK (1<<4) /* is a EIRQ */
/* eirq, EIRQ_REG */
#define Q40_IRQ3_MASK (1)
#define Q40_IRQ4_MASK (1<<1)
#define Q40_IRQ5_MASK (1<<2)
#define Q40_IRQ6_MASK (1<<3)
#define Q40_IRQ7_MASK (1<<4)
#define Q40_IRQ10_MASK (1<<5)
#define Q40_IRQ14_MASK (1<<6)
#define Q40_IRQ15_MASK (1<<7)
extern unsigned long q40_probe_irq_on (void);
extern int q40_probe_irq_off (unsigned long irqs);
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