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ide: use do_rw_taskfile() in flagged_taskfile()

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Based on the earlier work by Tejun Heo.

* Move setting IDE_TFLAG_LBA48 taskfile flag from do_rw_taskfile()
  function to the callers.

* Add IDE_TFLAG_FLAGGED taskfile flag for flagged taskfiles coming
  from ide_taskfile_ioctl().  Check it instead of ->tf_out_flags.all.

* Add IDE_TFLAG_OUT_DATA taskfile flag to indicate the need to load
  IDE data register in ide_tf_load().

* Add IDE_TFLAG_OUT_* taskfile flags to indicate the need to load
  particular IDE taskfile registers in ide_tf_load().

* Update do_rw_taskfile() and ide_tf_load() users to set respective
  IDE_TFLAG_OUT_* taksfile flags.

* Add task_dma_ok() helper.

* Use IDE_TFLAG_FLAGGED taskfile flag to select HIHI mask in ide_tf_load().

* Use do_rw_taskfile() in flagged_taskfile().

* Remove no longer needed 'tf_out_flags' field from ide_task_t.

There should be no functionality changes caused by this patch.

Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2008-01-25 22:17:07 +01:00
parent 9a3c49be5c
commit 74095a91ed
4 changed files with 124 additions and 125 deletions
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31
drivers/ide/ide-io.c
View File

@@ -192,15 +192,11 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *
args->tf.command = WIN_FLUSH_CACHE_EXT;
else
args->tf.command = WIN_FLUSH_CACHE;
args->command_type = IDE_DRIVE_TASK_NO_DATA;
args->handler = &task_no_data_intr;
return do_rw_taskfile(drive, args);
goto out_do_tf;
case idedisk_pm_standby: /* Suspend step 2 (standby) */
args->tf.command = WIN_STANDBYNOW1;
args->command_type = IDE_DRIVE_TASK_NO_DATA;
args->handler = &task_no_data_intr;
return do_rw_taskfile(drive, args);
goto out_do_tf;
case idedisk_pm_restore_pio: /* Resume step 1 (restore PIO) */
ide_set_max_pio(drive);
@@ -215,9 +211,7 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *
case idedisk_pm_idle: /* Resume step 2 (idle) */
args->tf.command = WIN_IDLEIMMEDIATE;
args->command_type = IDE_DRIVE_TASK_NO_DATA;
args->handler = task_no_data_intr;
return do_rw_taskfile(drive, args);
goto out_do_tf;
case ide_pm_restore_dma: /* Resume step 3 (restore DMA) */
/*
@@ -236,6 +230,14 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *
}
pm->pm_step = ide_pm_state_completed;
return ide_stopped;
out_do_tf:
args->tf_flags = IDE_TFLAG_OUT_TF;
if (drive->addressing == 1)
args->tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_OUT_HOB);
args->command_type = IDE_DRIVE_TASK_NO_DATA;
args->handler = task_no_data_intr;
return do_rw_taskfile(drive, args);
}
/**
@@ -730,6 +732,10 @@ static ide_startstop_t ide_disk_special(ide_drive_t *drive)
return ide_stopped;
}
args.tf_flags = IDE_TFLAG_OUT_TF;
if (drive->addressing == 1)
args.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_OUT_HOB);
do_rw_taskfile(drive, &args);
return ide_started;
@@ -883,8 +889,13 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
break;
}
if (args->tf_out_flags.all != 0)
if (args->tf_flags & IDE_TFLAG_FLAGGED)
return flagged_taskfile(drive, args);
args->tf_flags |= IDE_TFLAG_OUT_TF;
if (drive->addressing == 1)
args->tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_OUT_HOB);
return do_rw_taskfile(drive, args);
} else if (rq->cmd_type == REQ_TYPE_ATA_TASK) {
u8 *args = rq->buffer;