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Master IRQ should be EOIed first, I think.

pull/1/head
Michael Brown 2007-07-10 04:33:59 +01:00
parent 19871cbb96
commit 4e14b020a5
1 changed files with 1 additions and 1 deletions
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2
src/arch/i386/core/pic8259.c
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@ -46,11 +46,11 @@ static inline void send_nonspecific_eoi ( unsigned int irq ) {
*/ */
static inline void send_specific_eoi ( unsigned int irq ) { static inline void send_specific_eoi ( unsigned int irq ) {
DBG ( "Sending specific EOI for IRQ %d\n", irq ); DBG ( "Sending specific EOI for IRQ %d\n", irq );
outb ( ( ICR_EOI_SPECIFIC | ICR_VALUE ( irq ) ), ICR_REG ( irq ) );
if ( irq >= IRQ_PIC_CUTOFF ) { if ( irq >= IRQ_PIC_CUTOFF ) {
outb ( ( ICR_EOI_SPECIFIC | ICR_VALUE ( CHAINED_IRQ ) ), outb ( ( ICR_EOI_SPECIFIC | ICR_VALUE ( CHAINED_IRQ ) ),
ICR_REG ( CHAINED_IRQ ) ); ICR_REG ( CHAINED_IRQ ) );
} }
outb ( ( ICR_EOI_SPECIFIC | ICR_VALUE ( irq ) ), ICR_REG ( irq ) );
} }
/** /**