drm: mediatek: use common helper for extracting pages array (90dcf444) · Commits · 戴 / test

Use common helper for converting a sg_table object into struct page pointer array. Signed-off-by:

drivers/gpu/drm/mediatek/mtk_drm_gem.c

+2 −7

Original line number	Diff line number	Diff line
		@@ -233,9 +233,7 @@ void mtk_drm_gem_prime_vmap(struct drm_gem_object obj)
		{
		struct mtk_drm_gem_obj *mtk_gem = to_mtk_gem_obj(obj);
		struct sg_table *sgt;
		struct sg_page_iter iter;
		unsigned int npages;
		unsigned int i = 0;

		if (mtk_gem->kvaddr)
		return mtk_gem->kvaddr;
		@@ -249,11 +247,8 @@ void mtk_drm_gem_prime_vmap(struct drm_gem_object obj)
		if (!mtk_gem->pages)
		goto out;

		for_each_sg_page(sgt->sgl, &iter, sgt->orig_nents, 0) {
		mtk_gem->pages[i++] = sg_page_iter_page(&iter);
		if (i > npages)
		break;
		}
		drm_prime_sg_to_page_addr_arrays(sgt, mtk_gem->pages, NULL, npages);

		mtk_gem->kvaddr = vmap(mtk_gem->pages, npages, VM_MAP,
		pgprot_writecombine(PAGE_KERNEL));