Hi Bartlomiej,
On Fri, Dec 30, 2016 at 3:01 PM, Bartlomiej Zolnierkiewicz
<b.zolnierkie@xxxxxxxxxxx> wrote:
> This patchset adds m68k/Atari Falcon PATA support to libata.
Thanks for your series!
That leaves us with 4 to go ;-)
CONFIG_BLK_DEV_GAYLE
CONFIG_BLK_DEV_BUDDHA
CONFIG_BLK_DEV_MAC_IDE
CONFIG_BLK_DEV_Q40IDE
Note that using libata instead of the legacy IDE driver increases kernel size.
After enabling libata:
CONFIG_ATA=y
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_SFF=y
CONFIG_PATA_FALCON=y
an atari_defconfig kernel grew by:
add/remove: 775/0 grow/shrink: 753/41 up/down: 98999/-242 (98757)
After disabling CONFIG_IDE:
add/remove: 0/589 grow/shrink: 0/12 up/down: 0/-62835 (-62835)
So the net result is:
add/remove: 775/589 grow/shrink: 749/51 up/down: 98886/-62964 (35922)
Disabling CONFIG_ATA_VERBOSE_ERROR saved 1380 bytes, which is less than the
value advertised by Kconfig (6KB).
> The major difference in the new libata's pata_falcon host
> driver when compared to legacy IDE's falconide host driver is
> that we are using polled PIO mode and thus avoiding the need
> for STDMA locking magic altogether.
I'll let the Atari experts (Michael?) comment on that...
> Tested under ARAnyM emulator.
Works indeed fine on ARAnyM.
Unfortunately I can't test it on real hardware...
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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