redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

ide: use IDE_TFLAG_LBA48 for REQ_TYPE_ATA_TASKFILE requests 

* Use IDE_TFLAG_LBA48 for REQ_TYPE_ATA_TASKFILE requests in ide_end_drive_cmd()
  to decide whether we need to read HOB taskfile registers.

* Update execute_drive_cmd() accordingly.

This is a preparation for the next patch which removes unnecessary writes to
HOB taskfile registers for some ATA commands.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
hifive-unleashed-5.1
Bartlomiej Zolnierkiewicz 2008-01-25 22:17:10 +01:00
parent 807e35d695
commit 868e672ac8
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/ide/ide-io.c
View File

@ -374,7 +374,7 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err)
tf->device = hwif->INB(IDE_SELECT_REG);
tf->status = stat;
if (drive->addressing == 1) {
if (args->tf_flags & IDE_TFLAG_LBA48) {
hwif->OUTB(drive->ctl|0x80, IDE_CONTROL_REG);
tf->hob_feature = hwif->INB(IDE_FEATURE_REG);
tf->hob_nsect = hwif->INB(IDE_NSECTOR_REG);
@ -872,13 +872,15 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
}
task->tf_flags |= IDE_TFLAG_OUT_DEVICE;
if (drive->addressing == 1)
task->tf_flags |= IDE_TFLAG_LBA48;
if (task->tf_flags & IDE_TFLAG_FLAGGED)
return flagged_taskfile(drive, task);
task->tf_flags |= IDE_TFLAG_OUT_TF;
if (drive->addressing == 1)
task->tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_OUT_HOB);
if (task->tf_flags & IDE_TFLAG_LBA48)
task->tf_flags |= IDE_TFLAG_OUT_HOB;
return do_rw_taskfile(drive, task);
}