Re: [RESEND PATCH linux-next v2 00/10] drm: Remove some obsolete drivers(tdfx, mga, i810, savage, r128, sis, via)

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On Thu, Jan 05, 2023 at 02:01:50PM +0100, Thomas Zimmermann wrote:
> Hi
> 
> Am 05.01.23 um 13:40 schrieb Daniel Vetter:
> > On Thu, Dec 08, 2022 at 08:42:07PM +0800, Cai Huoqing wrote:
> > > On 03 12月 22 18:22:51, Cai Huoqing wrote:
> > > > Commit 399516ab0fee ("MAINTAINERS: Add a bunch of legacy (UMS) DRM drivers")
> > > > marked these drivers obsolete 7 years ago.
> > > > And the mesa UMD of these drm drivers already in deprecated list
> > > > in the link: https://docs.mesa3d.org/systems.html
> > > > 
> > > > 3dfx Glide-->driver/gpu/drm/tdfx
> > > > Matrox-->driver/gpu/drm/mga
> > > > Intel i810-->driver/gpu/drm/i810
> > > > S3 Savage-->drivers/gpu/drm/savage
> > > > ATI Rage 128->drivers/gpu/drm/r128
> > > > Silicon Integrated Systems->drivers/gpu/drm/sis
> > > > VIA Unichrome->drivers/gpu/drm/via
> > > > 
> > > > v1->v2:
> > > > 1.Add drm via driver to the patchset.
> > > > 2.Remove related drm_pciids.
> > > > 3.Remove related drm uapi header files.
> > > > 4.split to series avoid large patch email.
> > > Just ping these patch series.
> > > The v1 comments here,
> > > https://lore.kernel.org/lkml/39d8ac1a-d92f-7cdc-14cd-944342f78c1a@xxxxxxx/
> > 
> > Are we really sure that all users of these are gone? Also, I'm not really
> > seeing the benefit of this, we've managed to split out the legacy code
> > quite well, so carrying around isn't hurting anything afaics?
> 
> My first reaction was 'no way'. But then I thought about possible users of
> this code and I cannot see anyone relying on it. You'd need an ancient
> userspace Mesa library plus the most recent kernel. And all the rendering is
> OpenGL 1.x. Are there even Linux programs for that?
> 
> So as far as I'm concerned
> 
> Acked-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
> 
> DRM's legacy infrastructure could be kept for a few more releases. Just in
> case one of the drivers makes a comeback.
> 
> There is code in nouveau that uses legacy functionality for its ancient
> userspace. I think we should scrap that as well. (See
> NOUVEAU_LEGACY_CTX_SUPPORT.)

>From the irc discussion:

Acked-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Acked-by: Dave Airlie <airlied@xxxxxxxxxx>
> 
> Best regards
> Thomas
> 
> > -Daniel
> > 
> > > 
> > > Thanks,
> > > Cai
> > > > 
> > > > Cai Huoqing (10):
> > > >    drm: Remove the obsolete driver-i810
> > > >    drm: Remove the obsolete driver-mga
> > > >    drm: Remove the obsolete driver-r128
> > > >    drm: Remove the obsolete driver-savage
> > > >    drm: Remove the obsolete driver-sis
> > > >    drm: Remove the obsolete driver-tdfx
> > > >    drm: Remove the obsolete driver-via
> > > >    drm: Add comments to Kconfig
> > > >    drm: Remove some obsolete drm pciids(tdfx, mga, i810, savage, r128,
> > > >      sis, via)
> > > >    MAINTAINERS: Remove some obsolete drivers info(tdfx, mga, i810,
> > > >      savage, r128, sis)
> > > > 
> > > >   MAINTAINERS                           |   29 -
> > > >   drivers/gpu/drm/Kconfig               |   59 +-
> > > >   drivers/gpu/drm/Makefile              |    7 -
> > > >   drivers/gpu/drm/i810/Makefile         |    8 -
> > > >   drivers/gpu/drm/i810/i810_dma.c       | 1266 ---------
> > > >   drivers/gpu/drm/i810/i810_drv.c       |  101 -
> > > >   drivers/gpu/drm/i810/i810_drv.h       |  246 --
> > > >   drivers/gpu/drm/mga/Makefile          |   11 -
> > > >   drivers/gpu/drm/mga/mga_dma.c         | 1168 --------
> > > >   drivers/gpu/drm/mga/mga_drv.c         |  104 -
> > > >   drivers/gpu/drm/mga/mga_drv.h         |  685 -----
> > > >   drivers/gpu/drm/mga/mga_ioc32.c       |  197 --
> > > >   drivers/gpu/drm/mga/mga_irq.c         |  169 --
> > > >   drivers/gpu/drm/mga/mga_state.c       | 1099 --------
> > > >   drivers/gpu/drm/mga/mga_warp.c        |  167 --
> > > >   drivers/gpu/drm/r128/Makefile         |   10 -
> > > >   drivers/gpu/drm/r128/ati_pcigart.c    |  228 --
> > > >   drivers/gpu/drm/r128/ati_pcigart.h    |   31 -
> > > >   drivers/gpu/drm/r128/r128_cce.c       |  944 -------
> > > >   drivers/gpu/drm/r128/r128_drv.c       |  116 -
> > > >   drivers/gpu/drm/r128/r128_drv.h       |  544 ----
> > > >   drivers/gpu/drm/r128/r128_ioc32.c     |  199 --
> > > >   drivers/gpu/drm/r128/r128_irq.c       |  118 -
> > > >   drivers/gpu/drm/r128/r128_state.c     | 1641 -----------
> > > >   drivers/gpu/drm/savage/Makefile       |    9 -
> > > >   drivers/gpu/drm/savage/savage_bci.c   | 1082 --------
> > > >   drivers/gpu/drm/savage/savage_drv.c   |   91 -
> > > >   drivers/gpu/drm/savage/savage_drv.h   |  580 ----
> > > >   drivers/gpu/drm/savage/savage_state.c | 1169 --------
> > > >   drivers/gpu/drm/sis/Makefile          |   10 -
> > > >   drivers/gpu/drm/sis/sis_drv.c         |  143 -
> > > >   drivers/gpu/drm/sis/sis_drv.h         |   80 -
> > > >   drivers/gpu/drm/sis/sis_mm.c          |  363 ---
> > > >   drivers/gpu/drm/tdfx/Makefile         |    8 -
> > > >   drivers/gpu/drm/tdfx/tdfx_drv.c       |   90 -
> > > >   drivers/gpu/drm/tdfx/tdfx_drv.h       |   47 -
> > > >   drivers/gpu/drm/via/Makefile          |    8 -
> > > >   drivers/gpu/drm/via/via_3d_reg.h      | 1771 ------------
> > > >   drivers/gpu/drm/via/via_dri1.c        | 3630 -------------------------
> > > >   include/drm/drm_pciids.h              |  112 -
> > > >   include/uapi/drm/i810_drm.h           |  292 --
> > > >   include/uapi/drm/mga_drm.h            |  429 ---
> > > >   include/uapi/drm/r128_drm.h           |  336 ---
> > > >   include/uapi/drm/savage_drm.h         |  220 --
> > > >   include/uapi/drm/sis_drm.h            |   77 -
> > > >   include/uapi/drm/via_drm.h            |  282 --
> > > >   46 files changed, 1 insertion(+), 19975 deletions(-)
> > > >   delete mode 100644 drivers/gpu/drm/i810/Makefile
> > > >   delete mode 100644 drivers/gpu/drm/i810/i810_dma.c
> > > >   delete mode 100644 drivers/gpu/drm/i810/i810_drv.c
> > > >   delete mode 100644 drivers/gpu/drm/i810/i810_drv.h
> > > >   delete mode 100644 drivers/gpu/drm/mga/Makefile
> > > >   delete mode 100644 drivers/gpu/drm/mga/mga_dma.c
> > > >   delete mode 100644 drivers/gpu/drm/mga/mga_drv.c
> > > >   delete mode 100644 drivers/gpu/drm/mga/mga_drv.h
> > > >   delete mode 100644 drivers/gpu/drm/mga/mga_ioc32.c
> > > >   delete mode 100644 drivers/gpu/drm/mga/mga_irq.c
> > > >   delete mode 100644 drivers/gpu/drm/mga/mga_state.c
> > > >   delete mode 100644 drivers/gpu/drm/mga/mga_warp.c
> > > >   delete mode 100644 drivers/gpu/drm/r128/Makefile
> > > >   delete mode 100644 drivers/gpu/drm/r128/ati_pcigart.c
> > > >   delete mode 100644 drivers/gpu/drm/r128/ati_pcigart.h
> > > >   delete mode 100644 drivers/gpu/drm/r128/r128_cce.c
> > > >   delete mode 100644 drivers/gpu/drm/r128/r128_drv.c
> > > >   delete mode 100644 drivers/gpu/drm/r128/r128_drv.h
> > > >   delete mode 100644 drivers/gpu/drm/r128/r128_ioc32.c
> > > >   delete mode 100644 drivers/gpu/drm/r128/r128_irq.c
> > > >   delete mode 100644 drivers/gpu/drm/r128/r128_state.c
> > > >   delete mode 100644 drivers/gpu/drm/savage/Makefile
> > > >   delete mode 100644 drivers/gpu/drm/savage/savage_bci.c
> > > >   delete mode 100644 drivers/gpu/drm/savage/savage_drv.c
> > > >   delete mode 100644 drivers/gpu/drm/savage/savage_drv.h
> > > >   delete mode 100644 drivers/gpu/drm/savage/savage_state.c
> > > >   delete mode 100644 drivers/gpu/drm/sis/Makefile
> > > >   delete mode 100644 drivers/gpu/drm/sis/sis_drv.c
> > > >   delete mode 100644 drivers/gpu/drm/sis/sis_drv.h
> > > >   delete mode 100644 drivers/gpu/drm/sis/sis_mm.c
> > > >   delete mode 100644 drivers/gpu/drm/tdfx/Makefile
> > > >   delete mode 100644 drivers/gpu/drm/tdfx/tdfx_drv.c
> > > >   delete mode 100644 drivers/gpu/drm/tdfx/tdfx_drv.h
> > > >   delete mode 100644 drivers/gpu/drm/via/Makefile
> > > >   delete mode 100644 drivers/gpu/drm/via/via_3d_reg.h
> > > >   delete mode 100644 drivers/gpu/drm/via/via_dri1.c
> > > >   delete mode 100644 include/uapi/drm/i810_drm.h
> > > >   delete mode 100644 include/uapi/drm/mga_drm.h
> > > >   delete mode 100644 include/uapi/drm/r128_drm.h
> > > >   delete mode 100644 include/uapi/drm/savage_drm.h
> > > >   delete mode 100644 include/uapi/drm/sis_drm.h
> > > >   delete mode 100644 include/uapi/drm/via_drm.h
> > > > 
> > > > -- 
> > > > 2.25.1
> > > > 
> > 
> 
> -- 
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Ivo Totev




-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch



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