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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-01-25 22:17:10 +0100 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-01-25 22:17:10 +0100 |
| commit | a3bbb9d882dc94fe3a1361596ab9ce55d84059ea (patch) | |
| tree | b2b7af290b6300be00a2cbd6c5d0dba19905dc65 /drivers/ide/ide-acpi.c | |
| parent | 868e672ac8db650dde695a5707a6caf5a757e7d9 (diff) | |
| download | blackbird-op-linux-a3bbb9d882dc94fe3a1361596ab9ce55d84059ea.tar.gz blackbird-op-linux-a3bbb9d882dc94fe3a1361596ab9ce55d84059ea.zip | |
ide: remove unnecessary writes to HOB taskfile registers
* Set taskfile flags for REQ_TYPE_ATA_TASKFILE requests before
adding the request to the queue.
* Cleanup execute_drive_cmd().
* Remove unnecessary writes to HOB taskfile registers when using
LBA48 disk for the following cases:
- Power Management requests
(WIN_FLUSH_CACHE[_EXT], WIN_STANDBYNOW1, WIN_IDLEIMMEDIATE commands)
- special commands (WIN_SPECIFY, WIN_RESTORE, WIN_SETMULT)
- Host Protected Area support (WIN_READ_NATIVE_MAX, WIN_SET_MAX)
- /proc/ide/ SMART support (WIN_SMART with SMART_ENABLE,
SMART_READ_VALUES and SMART_READ_THRESHOLDS subcommands)
- write cache enabling/disabling in ide-disk
(WIN_SETFEATURES with SETFEATURES_{EN,DIS}_WCACHE)
- write cache flushing in ide-disk (WIN_FLUSH_CACHE[_EXT])
- acoustic management in ide-disk
(WIN_SETFEATURES with SETFEATURES_{EN,DIS}_AAM)
- door (un)locking in ide-disk (WIN_DOORLOCK, WIN_DOORUNLOCK)
- /proc/ide/hd?/identify support (WIN_IDENTIFY)
- ACPI _GTF taskfiles
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide-acpi.c')
| -rw-r--r-- | drivers/ide/ide-acpi.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c index f0a6a3d6d2d3..e0bb0cfa7bdd 100644 --- a/drivers/ide/ide-acpi.c +++ b/drivers/ide/ide-acpi.c @@ -386,6 +386,7 @@ static int taskfile_load_raw(ide_drive_t *drive, /* convert gtf to IDE Taskfile */ memcpy(&args.tf_array[7], >f->tfa, 7); + args.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE; if (ide_noacpitfs) { DEBPRINT("_GTF execution disabled\n"); |
