On Tue, 17 Dec 2013 10:03:12 +0000
Chris Wilson <ch...@chris-wilson.co.uk> wrote:
> On Mon, Dec 16, 2013 at 04:34:26PM -0800, Jesse Barnes wrote:
> > + if (INTEL_INFO(dev)->gen >= 4) {
> > + if (plane_config->tiled)
> > + offset = I915_READ(DSPTILEOFF(plane));
> > + else
> > + offset = I915_READ(DSPLINOFF(plane));
> > + base = I915_READ(DSPSURF(plane)) & 0xfffff000;
> > + } else {
> > + base = I915_READ(DSPADDR(plane));
> > + }
> > +
> > + val = I915_READ(PIPESRC(pipe));
> > + plane_config->fb->base.width = ((val >> 16) & 0xfff) + 1;
> > + plane_config->fb->base.height = ((val >> 0) & 0xfff) + 1;
> > +
> > + val = I915_READ(DSPSTRIDE(pipe));
> > + plane_config->fb->base.pitches[0] = val & 0xffffff80;
> > +
> > + plane_config->size = ALIGN(plane_config->fb->base.pitches[0] *
> > + plane_config->fb->base.height, PAGE_SIZE);
>
> This underestimates the size of a tiled framebuffer. Height should be
> aligned to 1,16,64 depending on tiling.
Fixed, thanks.
--
Jesse Barnes, Intel Open Source Technology Center
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