On ma, 2016-12-12 at 11:53 +0000, Chris Wilson wrote:
> Check that we can request alignment to any power-of-two or prime using a
> plain drm_mm_node_insert(), and also handle a reasonable selection of
> primes.
>
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
<SNIP>
> +static int igt_align(void *ignored)
> +{
> + struct drm_mm mm;
> + struct drm_mm_node *node, *next;
> + int ret = -EINVAL;
> + int prime;
> +
> + drm_mm_init(&mm, 1, U64_MAX - 1);
> +
> + drm_for_each_prime(prime, 8192) {
> + u64 size;
> + int err;
> +
> + node = kzalloc(sizeof(*node), GFP_KERNEL);
> + if (!node) {
> + ret = -ENOMEM;
> + goto out;
> + }
If the amount of primes would be predictable (pun intended), we could
malloc the nodes at one go.
Other than that, looks like I reviewed this already;
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
Regards, Joonas
--
Joonas Lahtinen
Open Source Technology Center
Intel Corporation
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