[v4,0/7] drm/mgag200: Implement VBLANK support

Message

Thomas Zimmermann July 5, 2024, 11:47 a.m. UTC

(was: Rate-limit shadow-FB-to-console-update to screen refresh)

Implement support for VBLANK events in mgag200.

Patches 1 to 5 prepare mgag200's modesetting code by renaming or
adding variables for various hardware fields. This makes the code
more readable and aligns it with the programming manuals for Matrox 
hardware.

Patch 6 implements support for VBLANK events. The patch has been
reviewed before at [1]. That old patchset never found its way into
the kernel, but the VBLANK support is still useful.

Patch 7 adds support for VBLANK timestamps.

v4:
- split off the patchset from an earlier series [1]

[1] https://patchwork.freedesktop.org/series/66442/

Thomas Zimmermann (7):
  drm/mgag200: Use hexadecimal register indeces
  drm/mgag200: Align register field names with documentation
  drm/mgag200: Use adjusted mode values for CRTCs
  drm/mgag200: Add dedicated variables for blanking fields
  drm/mgag200: Add dedicted variable for <linecomp> field
  drm/mgag200: Add vblank support
  drm/mgag200: Implement struct drm_crtc_funcs.get_vblank_timestamp

 drivers/gpu/drm/mgag200/mgag200_drv.c     |  47 ++++++
 drivers/gpu/drm/mgag200/mgag200_drv.h     |  14 +-
 drivers/gpu/drm/mgag200/mgag200_g200.c    |   5 +
 drivers/gpu/drm/mgag200/mgag200_g200eh.c  |   5 +
 drivers/gpu/drm/mgag200/mgag200_g200eh3.c |   5 +
 drivers/gpu/drm/mgag200/mgag200_g200er.c  |   5 +
 drivers/gpu/drm/mgag200/mgag200_g200ev.c  |   5 +
 drivers/gpu/drm/mgag200/mgag200_g200ew3.c |   5 +
 drivers/gpu/drm/mgag200/mgag200_g200se.c  |   5 +
 drivers/gpu/drm/mgag200/mgag200_g200wb.c  |   5 +
 drivers/gpu/drm/mgag200/mgag200_mode.c    | 169 ++++++++++++++++------
 drivers/gpu/drm/mgag200/mgag200_reg.h     |   7 +
 12 files changed, 232 insertions(+), 45 deletions(-)