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| author | Robert Hancock <hancockr@shaw.ca> | 2007-02-20 01:03:08 (GMT) |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-02-21 09:58:19 (GMT) |
| commit | 721449bf0d51213fe3abf0ac3e3561ef9ea7827a (patch) | |
| tree | 7f2180d3f8454216e6a2c1ce9aa8602bfb5b1d61 /drivers/clocksource | |
| parent | ac3d6b869f1f2d8ee1bf7b0ba45cd7daed9b9513 (diff) | |
| download | linux-fsl-qoriq-721449bf0d51213fe3abf0ac3e3561ef9ea7827a.tar.xz | |
sata_nv: Use notifier for completion checks
The hardware provides us a notifier register that indicates what command
tags have completed. Use this to determine which CPBs to check, rather
than blindly checking all active CPBs. This should provide a minor
performance win, since if the controller has touched some of these
incomplete CPBs, accessing them will likely result in a cache miss.
Signed-off-by: Robert Hancock <hancockr@shaw.ca>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/clocksource')
0 files changed, 0 insertions, 0 deletions