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| author | Mark Lord <[email protected]> | 2009-04-13 15:29:34 +0000 |
|---|---|---|
| committer | Jeff Garzik <[email protected]> | 2009-04-17 23:04:28 +0000 |
| commit | 299b3f8df90a3f7416d8df121d8a42b1a2aeced4 (patch) | |
| tree | 600bd461c66e9980c3dc3554148fb594e5805f5f /arch/m32r/include/asm/assembler.h | |
| parent | sata_mv: tidy up qc->tf usage in qc_prep() functions (diff) | |
| download | kernel-299b3f8df90a3f7416d8df121d8a42b1a2aeced4.tar.gz kernel-299b3f8df90a3f7416d8df121d8a42b1a2aeced4.zip | |
sata_mv: workaround for multi_count errata sata24
Workaround for errata SATA#24 in sata_mv.
This errata affects WRITE_MULTI* commands when
the device multi_count produces a DRQ block size >= 4Kbytes.
We work around it here by converting such operations
into ordinary PIO_WRITEs instead.
Note that this might result in a PIO FUA write unavoidably being converted
into a non-FUA write. In practice, any system using FUA is also going to be
using DMA rather than PIO, so this shouldn't affect anyone in the real world.
Signed-off-by: Mark Lord <[email protected]>
Signed-off-by: Jeff Garzik <[email protected]>
Diffstat (limited to 'arch/m32r/include/asm/assembler.h')
0 files changed, 0 insertions, 0 deletions