[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [konrad.wilk@xxxxxxxxxx: [PATCH] drm/i915: make compact dma scatter lists creation work with SWIOTLB backend.]
>>> On 24.06.13 at 17:53, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote: > --- a/drivers/gpu/drm/i915/i915_gem.c > +++ b/drivers/gpu/drm/i915/i915_gem.c > @@ -1801,7 +1801,14 @@ i915_gem_object_get_pages_gtt(struct > drm_i915_gem_object *obj) > gfp |= __GFP_NORETRY | __GFP_NOWARN | __GFP_NO_KSWAPD; > gfp &= ~(__GFP_IO | __GFP_WAIT); > } > - > +#ifdef CONFIG_SWIOTLB > + if (swiotlb_nr_tbl()) { > + st->nents++; > + sg_set_page(sg, page, PAGE_SIZE, 0); > + sg = sg_next(sg); > + continue; > + } > +#endif > if (!i || page_to_pfn(page) != last_pfn + 1) { > if (i) > sg = sg_next(sg); > @@ -1812,8 +1819,10 @@ i915_gem_object_get_pages_gtt(struct > drm_i915_gem_object *obj) > } > last_pfn = page_to_pfn(page); > } > - > - sg_mark_end(sg); > +#ifdef CONFIG_SWIOTLB > + if (!swiotlb_nr_tbl()) > +#endif > + sg_mark_end(sg); > obj->pages = st; > > if (i915_gem_object_needs_bit17_swizzle(obj)) Out of curiosity - while I can see the point of the first hunk, why do you need to also suppress the setting of the list terminator? Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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