| commit | cae6edc3b5a536119374a5439d9b253cb26f05e1 | [log] [tgz] |
|---|---|---|
| author | Mark Lord <liml@rtr.ca> | Mon Jan 19 18:05:42 2009 -0500 |
| committer | Jeff Garzik <jgarzik@redhat.com> | Mon Jan 26 06:36:53 2009 -0500 |
| tree | 14c8706bb6a6a8135b12b66623e005df825b454f | |
| parent | b0bccb18bc523d1d5060d25958f12438062829a9 [diff] |
sata_mv: don't read hc_irq_cause Remove silly read-modify-write sequences when clearing interrupts in hc_irq_cause. This gets rid of unneeded MMIO reads, resulting in a slight performance boost when switching between EDMA and non-EDMA modes (eg. for cache flushes). Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>