[PATCH 0/9] implicit fencing clarification

[Oleksandr Andrushchenko]

Hi, Daniel!

It seems that this series misses xen-front's
"Use simple_display_pipe prepare_fb helper" change?

Thank you,
Oleksandr

On 04/05/2018 06:44 PM, Daniel Vetter wrote:
> Hi all,
>
> Somewhat motivated (but only really tangentially) by the dirtyfb
> discussion with Rob and Thomas I started digging around in the various
> driver implementations for implicit vs. explicit fencing.
>
> There's definitely a huge pile of drivers which don't do any implicit
> fencing at all - not sure that's good or not. And for some of the drivers
> with more history I think they don't correctly overwrite implicit fencing
> when explicit fencing is present. At least I've gotten lost in the mazes
> before I found positive proof.
>
> So this is just the lower hanging stuff, plus a doc patch to hopefully
> clarify this all better.
>
> Comments and review and especially in the case of the msm/vc4 patches,
> also testing, very much welcome.
>
> Thanks, Daniel
>
> Daniel Vetter (9):
>    drm/vmwgfx: Remove no-op prepare/cleanup_fb callbacks
>    drm: Move simple_display_pipe prepare_fb helper into gem fb helpers
>    drm/tve200: Use simple_display_pipe prepare_fb helper
>    drm/pl111: Use simple_display_pipe prepare_fb helper
>    drm/mxsfb: Use simple_display_pipe prepare_fb helper
>    drm/atomic: better doc for implicit vs explicit fencing
>    drm/gem-fb-helper: Always do implicit sync
>    drm/vc4: Always obey implicit sync
>    drm/msm: Always obey implicit fencing
>
>   drivers/gpu/drm/drm_atomic.c                 |  8 +++++++
>   drivers/gpu/drm/drm_gem_framebuffer_helper.c | 21 ++++++++++++++++-
>   drivers/gpu/drm/msm/msm_atomic.c             |  2 +-
>   drivers/gpu/drm/mxsfb/mxsfb_drv.c            |  8 +------
>   drivers/gpu/drm/pl111/pl111_display.c        |  8 +------
>   drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c  | 17 --------------
>   drivers/gpu/drm/tinydrm/ili9225.c            |  2 +-
>   drivers/gpu/drm/tinydrm/mi0283qt.c           |  3 ++-
>   drivers/gpu/drm/tinydrm/repaper.c            |  2 +-
>   drivers/gpu/drm/tinydrm/st7586.c             |  2 +-
>   drivers/gpu/drm/tinydrm/st7735r.c            |  2 +-
>   drivers/gpu/drm/tve200/tve200_display.c      |  8 +------
>   drivers/gpu/drm/vc4/vc4_plane.c              | 11 +++++----
>   drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c          | 35 ----------------------------
>   include/drm/drm_gem_framebuffer_helper.h     |  3 +++
>   include/drm/drm_modeset_helper_vtables.h     |  5 +++-
>   include/drm/drm_plane.h                      |  7 +++++-
>   include/drm/drm_simple_kms_helper.h          |  3 +++
>   include/drm/tinydrm/tinydrm.h                |  2 --
>   19 files changed, 61 insertions(+), 88 deletions(-)
>