mirror of https://gitee.com/openkylin/linux.git
43ae70d97c
Currently, we reject attempting to pin a large bo into the mappable aperture, but only after trying to create the vma. Under debug kernels, repeatedly creating and freeing that vma for an oversized bo consumes one-third of the runtime for pwrite/pread tests as it is spent on kmalloc/kfree tracking. If we move the rejection to before creating that vma, we lose some accuracy of checking against the fence_size as opposed to object size, though the fence can never be smaller than the object. Note that the vma creation itself will reject an attempt to create a vma larger than the GTT so we can remove one redundant test. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20171009084401.29090-7-chris@chris-wilson.co.uk Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> |
||
|---|---|---|
| .. | ||
| drm | ||
| host1x | ||
| ipu-v3 | ||
| vga | ||
| Makefile | ||