Daniel Vetter <dan...@ffwll.ch> writes: > On Thu, Aug 13, 2015 at 01:44:03PM -0700, Eric Anholt wrote: >> Daniel Vetter <dan...@ffwll.ch> writes: >> >> > On Wed, Aug 12, 2015 at 05:56:16PM -0700, Eric Anholt wrote: >> >> This is the start of a full VC4 driver. Right now this just supports >> >> configuring the display using a pre-existing video mode (because >> >> changing the pixel clock isn't available yet, and doesn't work when it >> >> is). However, this is enough for fbcon and bringing up X using >> >> xf86-video-modesetting. >> >> >> >> Signed-off-by: Eric Anholt <e...@anholt.net> >> >> --- >> >> drivers/gpu/drm/Kconfig | 2 + >> >> drivers/gpu/drm/Makefile | 1 + >> >> drivers/gpu/drm/vc4/Kconfig | 14 + >> >> drivers/gpu/drm/vc4/Makefile | 18 ++ >> >> drivers/gpu/drm/vc4/vc4_bo.c | 54 ++++ >> >> drivers/gpu/drm/vc4/vc4_crtc.c | 583 >> >> ++++++++++++++++++++++++++++++++++ >> >> drivers/gpu/drm/vc4/vc4_debugfs.c | 38 +++ >> >> drivers/gpu/drm/vc4/vc4_drv.c | 249 +++++++++++++++ >> >> drivers/gpu/drm/vc4/vc4_drv.h | 123 +++++++ >> >> drivers/gpu/drm/vc4/vc4_hdmi.c | 651 >> >> ++++++++++++++++++++++++++++++++++++++ >> >> drivers/gpu/drm/vc4/vc4_hvs.c | 172 ++++++++++ >> >> drivers/gpu/drm/vc4/vc4_kms.c | 84 +++++ >> >> drivers/gpu/drm/vc4/vc4_plane.c | 320 +++++++++++++++++++ >> >> drivers/gpu/drm/vc4/vc4_regs.h | 562 ++++++++++++++++++++++++++++++++ >> >> 14 files changed, 2871 insertions(+) >> >> create mode 100644 drivers/gpu/drm/vc4/Kconfig >> >> create mode 100644 drivers/gpu/drm/vc4/Makefile >> >> create mode 100644 drivers/gpu/drm/vc4/vc4_bo.c >> >> create mode 100644 drivers/gpu/drm/vc4/vc4_crtc.c >> >> create mode 100644 drivers/gpu/drm/vc4/vc4_debugfs.c >> >> create mode 100644 drivers/gpu/drm/vc4/vc4_drv.c >> >> create mode 100644 drivers/gpu/drm/vc4/vc4_drv.h >> >> create mode 100644 drivers/gpu/drm/vc4/vc4_hdmi.c >> >> create mode 100644 drivers/gpu/drm/vc4/vc4_hvs.c >> >> create mode 100644 drivers/gpu/drm/vc4/vc4_kms.c >> >> create mode 100644 drivers/gpu/drm/vc4/vc4_plane.c >> >> create mode 100644 drivers/gpu/drm/vc4/vc4_regs.h >> > >> > Made a quick pass and found a few things to update to latest drm >> > developments. Of course didn't look at the hardware details since no clue, >> > but looks really nice overall. >> >> If you have anything about the hardware that you were curious about, I'd >> be interested in trying to explain them in the comments to the extent >> that I can. It's unfortunate that we haven't shipped docs for the >> display side of things, but had to do a lot of reading of the verilog >> just to get this far, anyway. > > The only thing I spotted is that you right now only register a primary and > cursor plane. I guess the plan we once discussed about exposing piles of > planes for -modesetting accel isn't there yet? > > But otherwise I really didn't go into the hardware details.
Yeah, I haven't done piles of planes because what we have right now means I don't have to do the bandwidth limits tracking yet.
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