Commit-ID: 1f91233c26fd5f7d6525fd29b95e4b50ca7a3e88
Gitweb: http://git.kernel.org/tip/1f91233c26fd5f7d6525fd29b95e4b50ca7a3e88
Author: Jacob Pan <jacob.jun.pan@xxxxxxxxx>
AuthorDate: Fri, 5 Feb 2010 04:06:56 -0800
Committer: H. Peter Anvin <hpa@xxxxxxxxx>
CommitDate: Fri, 19 Feb 2010 17:16:38 -0800
x86, apic: Remove ioapic_disable_legacy()
The ioapic_disable_legacy() call is no longer needed for platforms do
not have legacy pic. the legacy pic abstraction has taken care it
automatically.
This patch also initialize irq-related static variables based on
information obtained from legacy_pic.
Signed-off-by: Jacob Pan <jacob.jun.pan@xxxxxxxxx>
LKML-Reference: <43F901BD926A4E43B106BF17856F0755A30A7660@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxx>
---
arch/x86/include/asm/io_apic.h | 2 --
arch/x86/kernel/apic/io_apic.c | 10 +++++-----
2 files changed, 5 insertions(+), 7 deletions(-)
diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index 7c7c16c..84fdd51 100644
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -143,8 +143,6 @@ extern int noioapicreroute;
/* 1 if the timer IRQ uses the '8259A Virtual Wire' mode */
extern int timer_through_8259;
-extern void io_apic_disable_legacy(void);
-
/*
* If we use the IO-APIC for IRQ routing, disable automatic
* assignment of PCI IRQ's.
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 1704cd8..3592a72 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -143,11 +143,6 @@ static struct irq_cfg irq_cfgx[NR_IRQS_LEGACY];
static struct irq_cfg irq_cfgx[NR_IRQS];
#endif
-void __init io_apic_disable_legacy(void)
-{
- nr_irqs_gsi = 0;
-}
-
int __init arch_early_irq_init(void)
{
struct irq_cfg *cfg;
@@ -156,6 +151,11 @@ int __init arch_early_irq_init(void)
int node;
int i;
+ if (!legacy_pic->nr_legacy_irqs) {
+ nr_irqs_gsi = 0;
+ io_apic_irqs = ~0UL;
+ }
+
cfg = irq_cfgx;
count = ARRAY_SIZE(irq_cfgx);
node= cpu_to_node(boot_cpu_id);
--
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