Quoting Matthew Auld (2019-10-29 09:58:53)
> From: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
>
> If the aperture is not available in HW we can't use a ggtt slot and wc
> copy, so fall back to regular kmap.
>
> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
> Signed-off-by: Abdiel Janulgue <abdiel.janulgue@xxxxxxxxxxxxxxx>
> Signed-off-by: Matthew Auld <matthew.auld@xxxxxxxxx>
> ---
> + } else if (i915_gem_object_is_lmem(vma->obj)) {
> + struct intel_memory_region *mem = vma->obj->mm.region;
> + dma_addr_t dma;
> +
> + for_each_sgt_daddr(dma, iter, vma->pages) {
> + void __iomem *s;
> +
> + s = io_mapping_map_atomic_wc(&mem->iomap, dma);
> + ret = compress_page(compress, s, dst);
Just a (void __force *)s required here.
Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
-Chris
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