Re: [PATCH 19/23] drm/i915/selftest: Unify use of intel_remapped_plane_info in igt_vma_rotate_remap()

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On Thu, Mar 11, 2021 at 12:17:32AM +0200, Imre Deak wrote:
> Always use the modified copy of the intel_remapped_plane_info variables.
> An upcoming patch updates the dst_stride field in these copies after
> which we can't use the original versions.
> 
> Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/selftests/i915_vma.c | 61 ++++++++++++-----------
>  1 file changed, 33 insertions(+), 28 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/selftests/i915_vma.c b/drivers/gpu/drm/i915/selftests/i915_vma.c
> index 3d557b8a2098..86c590b4522c 100644
> --- a/drivers/gpu/drm/i915/selftests/i915_vma.c
> +++ b/drivers/gpu/drm/i915/selftests/i915_vma.c
> @@ -516,21 +516,23 @@ static int igt_vma_rotate_remap(void *arg)
>  	for (a = planes; a->width; a++) {
>  		for (b = planes + ARRAY_SIZE(planes); b-- != planes; ) {
>  			struct i915_ggtt_view view = { };
> +			struct intel_remapped_plane_info *plane_info = view.rotated.plane;
>  			unsigned int n, max_offset;
>  
> -			max_offset = max(a->stride * a->height,
> -					 b->stride * b->height);
> +			view.type = *t;
> +			plane_info[0] = *a;
> +			plane_info[1] = *b;

Could do this stuff when declaring the view I guess? Looks like the
other test does it that way.

Anyways
Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

> +
> +			max_offset = max(plane_info[0].stride * plane_info[0].height,
> +					 plane_info[1].stride * plane_info[1].height);
>  			GEM_BUG_ON(max_offset > max_pages);
>  			max_offset = max_pages - max_offset;
>  
> -			view.type = *t;
> -			view.rotated.plane[0] = *a;
> -			view.rotated.plane[1] = *b;
> -
> -			for_each_prime_number_from(view.rotated.plane[0].offset, 0, max_offset) {
> -				for_each_prime_number_from(view.rotated.plane[1].offset, 0, max_offset) {
> +			for_each_prime_number_from(plane_info[0].offset, 0, max_offset) {
> +				for_each_prime_number_from(plane_info[1].offset, 0, max_offset) {
>  					struct scatterlist *sg;
>  					struct i915_vma *vma;
> +					unsigned int expected_pages;
>  
>  					vma = checked_vma_instance(obj, vm, &view);
>  					if (IS_ERR(vma)) {
> @@ -544,25 +546,27 @@ static int igt_vma_rotate_remap(void *arg)
>  						goto out_object;
>  					}
>  
> +					expected_pages = rotated_size(&plane_info[0], &plane_info[1]);
> +
>  					if (view.type == I915_GGTT_VIEW_ROTATED &&
> -					    vma->size != rotated_size(a, b) * PAGE_SIZE) {
> +					    vma->size != expected_pages * PAGE_SIZE) {
>  						pr_err("VMA is wrong size, expected %lu, found %llu\n",
> -						       PAGE_SIZE * rotated_size(a, b), vma->size);
> +						       PAGE_SIZE * expected_pages, vma->size);
>  						err = -EINVAL;
>  						goto out_object;
>  					}
>  
>  					if (view.type == I915_GGTT_VIEW_REMAPPED &&
> -					    vma->size > rotated_size(a, b) * PAGE_SIZE) {
> +					    vma->size > expected_pages * PAGE_SIZE) {
>  						pr_err("VMA is wrong size, expected %lu, found %llu\n",
> -						       PAGE_SIZE * rotated_size(a, b), vma->size);
> +						       PAGE_SIZE * expected_pages, vma->size);
>  						err = -EINVAL;
>  						goto out_object;
>  					}
>  
> -					if (vma->pages->nents > rotated_size(a, b)) {
> +					if (vma->pages->nents > expected_pages) {
>  						pr_err("sg table is wrong sizeo, expected %u, found %u nents\n",
> -						       rotated_size(a, b), vma->pages->nents);
> +						       expected_pages, vma->pages->nents);
>  						err = -EINVAL;
>  						goto out_object;
>  					}
> @@ -590,14 +594,14 @@ static int igt_vma_rotate_remap(void *arg)
>  							pr_err("Inconsistent %s VMA pages for plane %d: [(%d, %d, %d, %d), (%d, %d, %d, %d)]\n",
>  							       view.type == I915_GGTT_VIEW_ROTATED ?
>  							       "rotated" : "remapped", n,
> -							       view.rotated.plane[0].width,
> -							       view.rotated.plane[0].height,
> -							       view.rotated.plane[0].stride,
> -							       view.rotated.plane[0].offset,
> -							       view.rotated.plane[1].width,
> -							       view.rotated.plane[1].height,
> -							       view.rotated.plane[1].stride,
> -							       view.rotated.plane[1].offset);
> +							       plane_info[0].width,
> +							       plane_info[0].height,
> +							       plane_info[0].stride,
> +							       plane_info[0].offset,
> +							       plane_info[1].width,
> +							       plane_info[1].height,
> +							       plane_info[1].stride,
> +							       plane_info[1].offset);
>  							err = -EINVAL;
>  							goto out_object;
>  						}
> @@ -887,6 +891,7 @@ static int igt_vma_remapped_gtt(void *arg)
>  				.type = *t,
>  				.rotated.plane[0] = *p,
>  			};
> +			struct intel_remapped_plane_info *plane_info = view.rotated.plane;
>  			struct i915_vma *vma;
>  			u32 __iomem *map;
>  			unsigned int x, y;
> @@ -906,15 +911,15 @@ static int igt_vma_remapped_gtt(void *arg)
>  				goto out;
>  			}
>  
> -			for (y = 0 ; y < p->height; y++) {
> -				for (x = 0 ; x < p->width; x++) {
> +			for (y = 0 ; y < plane_info[0].height; y++) {
> +				for (x = 0 ; x < plane_info[0].width; x++) {
>  					unsigned int offset;
>  					u32 val = y << 16 | x;
>  
>  					if (*t == I915_GGTT_VIEW_ROTATED)
> -						offset = (x * p->height + y) * PAGE_SIZE;
> +						offset = (x * plane_info[0].height + y) * PAGE_SIZE;
>  					else
> -						offset = (y * p->width + x) * PAGE_SIZE;
> +						offset = (y * plane_info[0].width + x) * PAGE_SIZE;
>  
>  					iowrite32(val, &map[offset / sizeof(*map)]);
>  				}
> @@ -937,8 +942,8 @@ static int igt_vma_remapped_gtt(void *arg)
>  				goto out;
>  			}
>  
> -			for (y = 0 ; y < p->height; y++) {
> -				for (x = 0 ; x < p->width; x++) {
> +			for (y = 0 ; y < plane_info[0].height; y++) {
> +				for (x = 0 ; x < plane_info[0].width; x++) {
>  					unsigned int offset, src_idx;
>  					u32 exp = y << 16 | x;
>  					u32 val;
> -- 
> 2.25.1
> 
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> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Ville Syrjälä
Intel
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