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| author | Jacob Pan <jacob.jun.pan@linux.intel.com> | 2012-01-26 17:32:04 +0000 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2012-01-26 21:23:50 +0100 |
| commit | b3eea29c189a0e3e2ac921e85fabfa4989ee58d7 (patch) | |
| tree | d75c6cd4f090444d5f3f433e1bd909db5c83a777 /arch/x86 | |
| parent | 87f71ae2dd7471c1b4c94100be1f218e91dc64c3 (diff) | |
| download | blackbird-op-linux-b3eea29c189a0e3e2ac921e85fabfa4989ee58d7.tar.gz blackbird-op-linux-b3eea29c189a0e3e2ac921e85fabfa4989ee58d7.zip | |
x86/ioapic: Use legacy_pic to set correct gsi-irq mapping
Using compile time NR_LEGACY_IRQS causes the wrong gsi-irq
mapping on non-PC platforms, such as Moorestown. This patch uses
legacy_pic abstraction to set the correct number of legacy
interrupts at runtime. For Moorestown, nr_legacy_irqs = 0. We
have 1:1 mapping for gsi-irq even within the legacy irq range.
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com>
Link: http://lkml.kernel.org/n/tip-kzvj4xp9tmicuoqoh2w05iay@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/apic/io_apic.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index fb072754bc1d..9e753663f0d1 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -1010,7 +1010,7 @@ static int pin_2_irq(int idx, int apic, int pin) } else { u32 gsi = gsi_cfg->gsi_base + pin; - if (gsi >= NR_IRQS_LEGACY) + if (gsi >= legacy_pic->nr_legacy_irqs) irq = gsi; else irq = gsi_top + gsi; @@ -3610,7 +3610,7 @@ static void __init probe_nr_irqs_gsi(void) { int nr; - nr = gsi_top + NR_IRQS_LEGACY; + nr = gsi_top + legacy_pic->nr_legacy_irqs; if (nr > nr_irqs_gsi) nr_irqs_gsi = nr; |
