• Bartlomiej Zolnierkiewicz's avatar
    ide: remove unnecessary writes to HOB taskfile registers · a3bbb9d8
    Bartlomiej Zolnierkiewicz authored
    
    
    * 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: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
    a3bbb9d8