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authorMaciej W. Rozycki <macro@linux-mips.org>2008-07-11 19:34:36 +0100
committerIngo Molnar <mingo@elte.hu>2008-07-11 20:54:02 +0200
commit1baea6e2fea6f235b21f32a322cb6cb43ffdb704 (patch)
tree6badd627ee06db35f5ea2ed93d3061ef2a77d845 /arch/x86/kernel
parent392a0fc96bd059b38564f5f8fb58327460cb5a9d (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.c6
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);