[Intel-gfx] [PATCH 09/12] Do more checks for proposed flip pixmaps

Keith Packard keithp at keithp.com
Thu Jul 31 08:20:20 PDT 2014

Ville Syrjälä <ville.syrjala at linux.intel.com> writes:

> Now that we have mmio flips in the kernel we can start to relax that
> restriction. That still needs a bit more work in the mmio flip code
> but I believe some people working on just that.

I couldn't find any tiling restrictions in the current (ring-based) flip
code; did I just miss them?

> We could even change the pixel format, except a check was added to
> drm_mode_page_flip_ioctl() to prevent that, so I guess it was
> deemed that the API isn't meant to allow that.

Yeah, not sure I care about this; 32bpp is pretty much the only format I

keith.packard at intel.com
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