Re: [PATCH 11/12] drm/i915/selftests: Use i915_gtt_view_is_*()

[Jani Nikula <jani.nikula@linux.intel.com>]

On Tue, 07 Apr 2026, Ville Syrjala <ville.syrjala@linux.intel.com> wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> Replace the naked GTT view type checks with the new
> i915_gtt_view_is_*() helpers. This isolates some of
> the code from GTT view implementation details.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

Reviewed-by: Jani Nikula <jani.nikula@intel.com>

> ---
>  drivers/gpu/drm/i915/selftests/i915_vma.c | 23 +++++++++++------------
>  1 file changed, 11 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/selftests/i915_vma.c b/drivers/gpu/drm/i915/selftests/i915_vma.c
> index 258557388a2d..60dbc6e04f43 100644
> --- a/drivers/gpu/drm/i915/selftests/i915_vma.c
> +++ b/drivers/gpu/drm/i915/selftests/i915_vma.c
> @@ -533,12 +533,11 @@ assert_remapped(struct drm_i915_gem_object *obj,
>  	return sg;
>  }
>  
> -static unsigned int remapped_size(enum i915_gtt_view_type view_type,
> +static unsigned int remapped_size(const struct i915_gtt_view *view,
>  				  const struct intel_remapped_plane_info *a,
>  				  const struct intel_remapped_plane_info *b)
>  {
> -
> -	if (view_type == I915_GTT_VIEW_ROTATED)
> +	if (i915_gtt_view_is_rotated(view))
>  		return a->dst_stride * a->width + b->dst_stride * b->width;
>  	else
>  		return a->dst_stride * a->height + b->dst_stride * b->height;
> @@ -606,11 +605,11 @@ static int igt_vma_rotate_remap(void *arg)
>  			max_offset = max_pages - max_offset;
>  
>  			if (!plane_info[0].dst_stride)
> -				plane_info[0].dst_stride = view.type == I915_GTT_VIEW_ROTATED ?
> +				plane_info[0].dst_stride = i915_gtt_view_is_rotated(&view) ?
>  									plane_info[0].height :
>  									plane_info[0].width;
>  			if (!plane_info[1].dst_stride)
> -				plane_info[1].dst_stride = view.type == I915_GTT_VIEW_ROTATED ?
> +				plane_info[1].dst_stride = i915_gtt_view_is_rotated(&view) ?
>  									plane_info[1].height :
>  									plane_info[1].width;
>  
> @@ -632,7 +631,7 @@ static int igt_vma_rotate_remap(void *arg)
>  						goto out_object;
>  					}
>  
> -					expected_pages = remapped_size(view.type, &plane_info[0], &plane_info[1]);
> +					expected_pages = remapped_size(&view, &plane_info[0], &plane_info[1]);
>  
>  					if (view.type != I915_GTT_VIEW_NORMAL &&
>  					    vma->size != expected_pages * PAGE_SIZE) {
> @@ -664,13 +663,13 @@ static int igt_vma_rotate_remap(void *arg)
>  
>  					sg = vma->pages->sgl;
>  					for (n = 0; n < ARRAY_SIZE(view.rotated.plane); n++) {
> -						if (view.type == I915_GTT_VIEW_ROTATED)
> +						if (i915_gtt_view_is_rotated(&view))
>  							sg = assert_rotated(obj, &view.rotated, n, sg);
>  						else
>  							sg = assert_remapped(obj, &view.remapped, n, sg);
>  						if (IS_ERR(sg)) {
>  							pr_err("Inconsistent %s VMA pages for plane %d: [(%d, %d, %d, %d, %d), (%d, %d, %d, %d, %d)]\n",
> -							       view.type == I915_GTT_VIEW_ROTATED ?
> +							       i915_gtt_view_is_rotated(&view) ?
>  							       "rotated" : "remapped", n,
>  							       plane_info[0].width,
>  							       plane_info[0].height,
> @@ -1009,7 +1008,7 @@ static int igt_vma_remapped_gtt(void *arg)
>  				goto out;
>  
>  			if (!plane_info[0].dst_stride)
> -				plane_info[0].dst_stride = *t == I915_GTT_VIEW_ROTATED ?
> +				plane_info[0].dst_stride = i915_gtt_view_is_rotated(&view) ?
>  								 p->height : p->width;
>  
>  			vma = i915_gem_object_ggtt_pin(obj, &view, 0, 0, PIN_MAPPABLE);
> @@ -1032,7 +1031,7 @@ static int igt_vma_remapped_gtt(void *arg)
>  					unsigned int offset;
>  					u32 val = y << 16 | x;
>  
> -					if (*t == I915_GTT_VIEW_ROTATED)
> +					if (i915_gtt_view_is_rotated(&view))
>  						offset = (x * plane_info[0].dst_stride + y) * PAGE_SIZE;
>  					else
>  						offset = (y * plane_info[0].dst_stride + x) * PAGE_SIZE;
> @@ -1064,7 +1063,7 @@ static int igt_vma_remapped_gtt(void *arg)
>  					u32 exp = y << 16 | x;
>  					u32 val;
>  
> -					if (*t == I915_GTT_VIEW_ROTATED)
> +					if (i915_gtt_view_is_rotated(&view))
>  						src_idx = rotated_index(&view.rotated, 0, x, y);
>  					else
>  						src_idx = remapped_index(&view.remapped, 0, x, y);
> @@ -1073,7 +1072,7 @@ static int igt_vma_remapped_gtt(void *arg)
>  					val = ioread32(&map[offset / sizeof(*map)]);
>  					if (val != exp) {
>  						pr_err("%s VMA write test failed, expected 0x%x, found 0x%x\n",
> -						       *t == I915_GTT_VIEW_ROTATED ? "Rotated" : "Remapped",
> +						       i915_gtt_view_is_rotated(&view) ? "Rotated" : "Remapped",
>  						       exp, val);
>  						i915_vma_unpin_iomap(vma);
>  						err = -EINVAL;

-- 
Jani Nikula, Intel