[PATCH 0/9] drm: Add generic fbdev emulation

From: "Noralf Trønnes" <noralf@tronnes.org>
To: dri-devel@lists.freedesktop.org
Cc: intel-gfx@lists.freedesktop.org, laurent.pinchart@ideasonboard.com
Subject: [PATCH 0/9] drm: Add generic fbdev emulation
Date: Wed, 23 May 2018 16:34:02 +0200	[thread overview]
Message-ID: <20180523143411.64070-1-noralf@tronnes.org> (raw)

This patchset adds generic fbdev emulation for drivers that supports GEM
based dumb buffers which support .gem_prime_vmap and gem_prime_mmap. An
API is begun to support in-kernel clients in general.

The CMA helper drivers is moved as a whole over to this generic fbdev
emulation. I've added patches 8 and 9 to show where it's heading.
tinydrm will be the first driver to use the full emulation when it moves
to vmalloc buffers. The CMA helper drivers will be converted one by one
later.

This work is based on an idea[1] by Laurent Pinchart:

    Ideally I'd like to remove 100% of fbdev-related
    code from drivers. This includes
    - initialization and cleanup of fbdev helpers
    - fbdev restore in last_close()
    - forwarding of hotplug events to fbdev compatibility layer

Noralf.

[1] https://lists.freedesktop.org/archives/dri-devel/2017-September/152612.html

David Herrmann (1):
  drm: provide management functions for drm_file

Noralf Trønnes (8):
  drm/file: Don't set master on in-kernel clients
  drm: Make ioctls available for in-kernel clients
  drm: Begin an API for in-kernel clients
  drm/fb-helper: Add generic fbdev emulation .fb_probe function
  drm/pl111: Set .gem_prime_vmap and .gem_prime_mmap
  drm/cma-helper: Use the generic fbdev emulation
  drm/client: Add client callbacks
  drm/fb-helper: Finish the generic fbdev emulation

 Documentation/gpu/drm-client.rst    |  12 +
 Documentation/gpu/index.rst         |   1 +
 drivers/gpu/drm/Makefile            |   2 +-
 drivers/gpu/drm/drm_client.c        | 511 ++++++++++++++++++++++++++++++++++++
 drivers/gpu/drm/drm_crtc_internal.h |  19 +-
 drivers/gpu/drm/drm_debugfs.c       |   7 +
 drivers/gpu/drm/drm_drv.c           |   9 +
 drivers/gpu/drm/drm_dumb_buffers.c  |  33 ++-
 drivers/gpu/drm/drm_fb_cma_helper.c | 365 ++++----------------------
 drivers/gpu/drm/drm_fb_helper.c     | 287 ++++++++++++++++++++
 drivers/gpu/drm/drm_file.c          | 304 ++++++++++++---------
 drivers/gpu/drm/drm_framebuffer.c   |  42 +--
 drivers/gpu/drm/drm_internal.h      |   2 +
 drivers/gpu/drm/drm_ioctl.c         |   4 +-
 drivers/gpu/drm/drm_probe_helper.c  |   3 +
 drivers/gpu/drm/pl111/pl111_drv.c   |   2 +
 include/drm/drm_client.h            | 146 +++++++++++
 include/drm/drm_device.h            |  21 ++
 include/drm/drm_fb_cma_helper.h     |   3 -
 include/drm/drm_fb_helper.h         |  33 +++
 20 files changed, 1322 insertions(+), 484 deletions(-)
 create mode 100644 Documentation/gpu/drm-client.rst
 create mode 100644 drivers/gpu/drm/drm_client.c
 create mode 100644 include/drm/drm_client.h

-- 
2.15.1

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