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sna: Reverse the chronological sort order of inactive vma entries 

The goal is to reuse the most recently bound GTT mapping in the hope
that is still mappable at the time of reuse.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2012-01-13 16:15:21 +00:00
parent 2f26bbe3dd
commit 24df8ab974
1 changed files with 2 additions and 4 deletions
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6
src/sna/kgem.c
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@ -858,7 +858,7 @@ inline static void kgem_bo_move_to_inactive(struct kgem *kgem,
bo->map = NULL;
}
if (bo->map) {
list_move_tail(&bo->vma, &kgem->vma[type].inactive[bo->bucket]);
list_move(&bo->vma, &kgem->vma[type].inactive[bo->bucket]);
kgem->vma[type].count++;
}
}
@ -2552,9 +2552,7 @@ static void kgem_trim_vma_cache(struct kgem *kgem, int type, int bucket)
j++) {
struct list *head = &kgem->vma[type].inactive[i++%ARRAY_SIZE(kgem->vma[type].inactive)];
if (!list_is_empty(head))
bo = list_first_entry(head,
struct kgem_bo,
vma);
bo = list_last_entry(head, struct kgem_bo, vma);
}
if (bo == NULL)
break;