On Tue, 18 May 2021 at 09:27, Thomas Hellström
<thomas.hellstrom@xxxxxxxxxxxxxxx> wrote:
>
> Temporarily remove the buddy allocator and related selftests
> and hook up the TTM range manager for i915 regions.
>
> Also modify the mock region selftests somewhat to account for a
> fragmenting manager.
>
> Signed-off-by: Thomas Hellström <thomas.hellstrom@xxxxxxxxxxxxxxx>
> ---
> v2:
> - Fix an error unwind in lmem_get_pages() (Reported by Matthew Auld)
> - Break out and modify usage of i915_sg_dma_sizes() (Reported by Mattew Auld)
> - Break out TTM changes to a separate patch (Reported by Christian König)
> ---
<snip>
> +
> +static int mock_region_get_pages(struct drm_i915_gem_object *obj)
> +{
> + unsigned int flags;
> + struct sg_table *pages;
> +
> + flags = I915_ALLOC_MIN_PAGE_SIZE;
> + if (obj->flags & I915_BO_ALLOC_CONTIGUOUS)
> + flags |= I915_ALLOC_CONTIGUOUS;
> +
> + obj->mm.st_mm_node = intel_region_ttm_node_alloc(obj->mm.region,
> + obj->base.size,
> + flags);
> + if (IS_ERR(obj->mm.st_mm_node))
> + return PTR_ERR(obj->mm.st_mm_node);
> +
> + pages = intel_region_ttm_node_to_st(obj->mm.region, obj->mm.st_mm_node);
> + if (IS_ERR(pages))
> + return PTR_ERR(pages);
Needs some onion?
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