diff options
| author | Maciej W. Rozycki <macro@linux-mips.org> | 2008-07-11 19:34:36 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-11 20:54:02 +0200 |
| commit | 1baea6e2fea6f235b21f32a322cb6cb43ffdb704 (patch) | |
| tree | 6badd627ee06db35f5ea2ed93d3061ef2a77d845 /arch/x86/kernel | |
| parent | 392a0fc96bd059b38564f5f8fb58327460cb5a9d (diff) | |
x86: L-APIC: Set IRQ0 as edge-triggered
IRQ0 is edge-triggered, but the "8259A Virtual Wire" through the local
APIC configuration in the 32-bit version uses the "fasteoi" handler
suitable for level-triggered APIC interrupt. Rewrite code so that the
"edge" handler is used. The 64-bit version uses different code and is
unaffected.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/io_apic_32.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c index 6b220b9dcbb..50e1131a6ec 100644 --- a/arch/x86/kernel/io_apic_32.c +++ b/arch/x86/kernel/io_apic_32.c @@ -2052,7 +2052,7 @@ static struct irq_chip lapic_chip __read_mostly = { .name = "local-APIC", .mask = mask_lapic_irq, .unmask = unmask_lapic_irq, - .eoi = ack_apic, + .ack = ack_apic, }; static void __init setup_nmi(void) @@ -2257,8 +2257,8 @@ static inline void __init check_timer(void) printk(KERN_INFO "...trying to set up timer as Virtual Wire IRQ..."); - set_irq_chip_and_handler_name(0, &lapic_chip, handle_fasteoi_irq, - "fasteoi"); + set_irq_chip_and_handler_name(0, &lapic_chip, handle_edge_irq, + "edge"); apic_write_around(APIC_LVT0, APIC_DM_FIXED | vector); /* Fixed mode */ enable_8259A_irq(0); |