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| author | Paul Mackerras <paulus@samba.org> | 2008-04-14 21:11:02 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-04-14 21:11:02 +1000 |
| commit | ac7c5353b189e10cf5dd27399f64f7b013abffc6 (patch) | |
| tree | 8222d92b774c256d6ec4399c716d76b3f05ddc4b /Documentation/i386/IO-APIC.txt | |
| parent | a8f75ea70c58546205fb7673be41455b9da5d9a7 (diff) | |
| parent | 120dd64cacd4fb796bca0acba3665553f1d9ecaa (diff) | |
| download | linux-ac7c5353b189e10cf5dd27399f64f7b013abffc6.tar.gz | |
Merge branch 'linux-2.6'
Diffstat (limited to 'Documentation/i386/IO-APIC.txt')
| -rw-r--r-- | Documentation/i386/IO-APIC.txt | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/i386/IO-APIC.txt b/Documentation/i386/IO-APIC.txt index f95166645d29..30b4c714fbe1 100644 --- a/Documentation/i386/IO-APIC.txt +++ b/Documentation/i386/IO-APIC.txt @@ -70,7 +70,7 @@ Every PCI card emits a PCI IRQ, which can be INTA, INTB, INTC or INTD: These INTA-D PCI IRQs are always 'local to the card', their real meaning depends on which slot they are in. If you look at the daisy chaining diagram, -a card in slot4, issuing INTA IRQ, it will end up as a signal on PIRQ2 of +a card in slot4, issuing INTA IRQ, it will end up as a signal on PIRQ4 of the PCI chipset. Most cards issue INTA, this creates optimal distribution between the PIRQ lines. (distributing IRQ sources properly is not a necessity, PCI IRQs can be shared at will, but it's a good for performance |