On 5/18/21 11:09 AM, Matthew Auld wrote:
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?
Ah, yes.
/Thomas
