From: Maciej W. Rozycki Date: Tue, 27 May 2008 20:19:40 +0000 (+0100) Subject: x86: I/O APIC: unmask the second-chance timer interrupt X-Git-Tag: v2.6.27-rc1~1106^2~251^2~21 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=24742ece8eb01b5855059020ba1c09173fd9b732;p=~shefty%2Frdma-dev.git x86: I/O APIC: unmask the second-chance timer interrupt Unmask the timer interrupt line set up in the through-8259A mode explicitly after setup_timer_IRQ0_pin() has set up the I/O APIC interrupt redirection entry to let the two operations be unbound from each other. Signed-off-by: Maciej W. Rozycki Signed-off-by: Ingo Molnar --- diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c index ce682e873aa..b381f93b79a 100644 --- a/arch/x86/kernel/io_apic_32.c +++ b/arch/x86/kernel/io_apic_32.c @@ -2185,6 +2185,7 @@ static inline void __init check_timer(void) * legacy devices should be connected to IO APIC #0 */ setup_timer_IRQ0_pin(apic2, pin2, vector); + unmask_IO_APIC_irq(0); enable_8259A_irq(0); if (timer_irq_works()) { printk("works.\n"); diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c index 6c4635fa97a..0e20b7d7c1c 100644 --- a/arch/x86/kernel/io_apic_64.c +++ b/arch/x86/kernel/io_apic_64.c @@ -1691,6 +1691,7 @@ static inline void __init check_timer(void) * legacy devices should be connected to IO APIC #0 */ setup_timer_IRQ0_pin(apic2, pin2, cfg->vector); + unmask_IO_APIC_irq(0); enable_8259A_irq(0); if (timer_irq_works()) { apic_printk(APIC_VERBOSE," works.\n");