[Intel-gfx] [PATCH] drm/i915/selftests: handle more rounding

[Das, Nirmoy]

Reviewed-by: Nirmoy Das <nirmoy.das at intel.com>

On 4/6/2022 7:30 PM, Matthew Auld wrote:
> Ensure we account for potential rounding up of lmem objects.
>
> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5485
> Signed-off-by: Matthew Auld <matthew.auld at intel.com>
> Cc: Nirmoy Das <nirmoy.das at linux.intel.com>
> ---
>   drivers/gpu/drm/i915/gt/selftest_migrate.c | 6 ++++--
>   1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/gt/selftest_migrate.c b/drivers/gpu/drm/i915/gt/selftest_migrate.c
> index c9c4f391c5cc..cca3b0db83c9 100644
> --- a/drivers/gpu/drm/i915/gt/selftest_migrate.c
> +++ b/drivers/gpu/drm/i915/gt/selftest_migrate.c
> @@ -621,13 +621,15 @@ static int perf_copy_blt(void *arg)
>   
>   	for (i = 0; i < ARRAY_SIZE(sizes); i++) {
>   		struct drm_i915_gem_object *src, *dst;
> +		size_t sz;
>   		int err;
>   
>   		src = create_init_lmem_internal(gt, sizes[i], true);
>   		if (IS_ERR(src))
>   			return PTR_ERR(src);
>   
> -		dst = create_init_lmem_internal(gt, sizes[i], false);
> +		sz = src->base.size;
> +		dst = create_init_lmem_internal(gt, sz, false);
>   		if (IS_ERR(dst)) {
>   			err = PTR_ERR(dst);
>   			goto err_src;
> @@ -640,7 +642,7 @@ static int perf_copy_blt(void *arg)
>   				      dst->mm.pages->sgl,
>   				      I915_CACHE_NONE,
>   				      i915_gem_object_is_lmem(dst),
> -				      sizes[i]);
> +				      sz);
>   
>   		i915_gem_object_unlock(dst);
>   		i915_gem_object_put(dst);