[Intel-gfx] [PATCH] Switch suitable directRenderingType checks to have_gem instead

Keith Packard keithp at keithp.com
Fri Jun 12 09:40:13 CEST 2009

On Fri, 2009-06-12 at 09:23 +0200, Michel Dänzer wrote:

> The DRM_IOCTL_MODESET_CTL ioctl has nothing to do with GEM. It probably
> shouldn't be called with KMS, but maybe i830_modeset_ctl() won't be
> called in that case anyway.

The only kernel API the intel driver supports now is GEM, so 'have_gem'
is really the same as 'have kernel support'. If you're using user mode
setting, I think you need to call this ioctl whenever changing modes to
make sure vblank counts are correct, so that any vblank-using APIs
within the X server work right.

keith.packard at intel.com
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