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Master IRQ should be EOIed first, I think.

tags/v0.9.3
Michael Brown 17 years ago
parent
19871cbb96
commit
4e14b020a5
1 changed files with 1 additions and 1 deletions
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  1. 1
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      src/arch/i386/core/pic8259.c

+ 1
- 1
src/arch/i386/core/pic8259.c View File

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  */
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  */
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 static inline void send_specific_eoi ( unsigned int irq ) {
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 static inline void send_specific_eoi ( unsigned int irq ) {
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 	DBG ( "Sending specific EOI for IRQ %d\n", irq );
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 	DBG ( "Sending specific EOI for IRQ %d\n", irq );
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-	outb ( ( ICR_EOI_SPECIFIC | ICR_VALUE ( irq ) ), ICR_REG ( irq ) );
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 	if ( irq >= IRQ_PIC_CUTOFF ) {
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 	if ( irq >= IRQ_PIC_CUTOFF ) {
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 		outb ( ( ICR_EOI_SPECIFIC | ICR_VALUE ( CHAINED_IRQ ) ),
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 		outb ( ( ICR_EOI_SPECIFIC | ICR_VALUE ( CHAINED_IRQ ) ),
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 		       ICR_REG ( CHAINED_IRQ ) );
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 		       ICR_REG ( CHAINED_IRQ ) );
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 	}
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 	}
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+	outb ( ( ICR_EOI_SPECIFIC | ICR_VALUE ( irq ) ), ICR_REG ( irq ) );
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 }
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 }
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 /**
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 /**

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