| commit | f9dadfa71bc594df09044da61d1c72701121d802 | [log] [tgz] |
|---|---|---|
| author | Linus Torvalds <torvalds@macmini.osdl.org> | Wed Nov 01 10:05:35 2006 -0800 |
| committer | Linus Torvalds <torvalds@macmini.osdl.org> | Wed Nov 01 10:06:52 2006 -0800 |
| tree | ffbd7d1b53b5393f078476e3dbe78284d7d847d4 | |
| parent | 130fe05dbc0114609cfef9815c0c5580b42decfa [diff] |
i386: write IO APIC irq routing entries in correct order Since the "mask" bit is in the low word, when we write a new entry, we need to write the high word first, before we potentially unmask it. The exception is when we actually want to mask the interrupt, in which case we want to write the low word first to make sure that the high word doesn't change while the interrupt routing is still active. Signed-off-by: Linus Torvalds <torvalds@osdl.org>