Commit Graph

7 Commits

Author SHA1 Message Date
Alan Cox 4e5ec5dba2 [PATCH] libata: BMDMA handling updates
This is the minimal patch set to enable the current code to be used with
a controller following SFF (ie any PATA and early SATA controllers)
safely without crashes if there is no BMDMA area or if BMDMA is not
assigned by the BIOS for some reason.

Simplex status is recorded but not acted upon in this change, this isn't
a problem with the current drivers as none of them are for simplex
hardware. A following diff will deal with that.

The flags in the probe structure remain ->host_set_flags although Jeff
asked me to rename them, simply because the rename would break the usual
Linux rules that old code should break when there are changes. not
compile and run and then blow up/eat your computer/etc. Renaming this
later is a trivial exercise once a better name is chosen.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-29 19:30:27 -05:00
Jeff Garzik 2e9edbf815 [libata] export ata_dev_pair; trim trailing whitespace
Mostly, trim trailing whitespace.

Also:
* export ata_dev_pair
* move ata_dev_classify export closer to ata_dev_pair export
2006-03-24 09:56:57 -05:00
Jeff Garzik 2cc432eed0 [libata] Move some bmdma-specific code to libata-bmdma.c
No code changes, just moving code between files.
2006-03-23 00:32:03 -05:00
Alan Cox 7c74ffd072 [PATCH] libata: note missing posting in mmio cmd write
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-22 19:55:40 -05:00
Alan Cox d33d44facc [PATCH] libata: two new PCI helpers
The first performs the simplex clearing relevant to some chipsets that
report simplex by default but can in fact do more if poked. The second
is used to strip DMA modes from a PCI control with no BAR4 allocation.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-21 21:21:32 -05:00
Alan Cox 41bbc8bf1a [PATCH] libata: Note weakness in our PCI handling that one day wants fixing
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-21 21:21:32 -05:00
Jeff Garzik 1fdffbce03 [libata] Move PCI IDE BMDMA-related code to new file libata-bmdma.c. 2006-02-09 05:15:27 -05:00