On Thu, Jul 05, 2012 at 10:10:10AM +0100, Chris Wilson wrote:
> + if (INTEL_INFO(dev)->gen >= 4 && (x|y) & ~4095) {
> + DRM_ERROR("CRTC offset too larget (%d, %d)\n", x, y);
larget?
OG.
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On Thu, 5 Jul 2012 19:22:37 +0200, Olivier Galibert wrote:
> On Thu, Jul 05, 2012 at 10:10:10AM +0100, Chris Wilson wrote:
> > + if (INTEL_INFO(dev)->gen >= 4 && (x|y) & ~4095) {
> > + DRM_ERROR("CRTC offset too larget (%d, %d)\n", x, y);
>
> larget?
Not even a humorous typo. Daniel
On gen4+, we program the CRTC offset into the DSPTILEOFF register, which
is limited to 12-bits of integer precision in both the x and the y axes.
Programming a value larger than or equal to 4096 results in a wraparound
of the CRTC location and a distorted output. This is undesirable, so
abort the o