From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9D852CA0EFF for ; Wed, 27 Aug 2025 22:08:03 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 391B310E8EE; Wed, 27 Aug 2025 22:08:03 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.b="V64n8EEK"; dkim-atps=neutral Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id DD76710E8EE for ; Wed, 27 Aug 2025 22:07:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1756332479; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=3ZA4z8X3DBAGYUxj/2WGnSPhW3B2O9Q5Mn2y+SAGx1Y=; b=V64n8EEKCnglOFm6U0OPF+ZbpQr0AtshNydmwg7Jch8lvY/N0+UDATaBNhey0zAC6RVh0e 49SEXhzPVwjTSlfOLr/3Ep8X6IIS7iga2P6jG4klUeYE9uIosqWUvJ2dodk7JQxelDFbAd 7mNin7tp4erAbZt8ruaEN6Hd3Iz6fx0= Received: from mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-35-9CODWK8aMK6h5vL0lOzKFQ-1; Wed, 27 Aug 2025 18:07:57 -0400 X-MC-Unique: 9CODWK8aMK6h5vL0lOzKFQ-1 X-Mimecast-MFC-AGG-ID: 9CODWK8aMK6h5vL0lOzKFQ_1756332470 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id AD5F5195608A; Wed, 27 Aug 2025 22:07:50 +0000 (UTC) Received: from t14s.redhat.com (unknown [10.22.80.195]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 7867C30001A1; Wed, 27 Aug 2025 22:07:34 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: David Hildenbrand , Thomas Bogendoerfer , Alexander Potapenko , Andrew Morton , Brendan Jackman , Christoph Lameter , Dennis Zhou , Dmitry Vyukov , dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, iommu@lists.linux.dev, io-uring@vger.kernel.org, Jason Gunthorpe , Jens Axboe , Johannes Weiner , John Hubbard , kasan-dev@googlegroups.com, kvm@vger.kernel.org, "Liam R. Howlett" , Linus Torvalds , linux-arm-kernel@axis.com, linux-arm-kernel@lists.infradead.org, linux-crypto@vger.kernel.org, linux-ide@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mips@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, Lorenzo Stoakes , Marco Elver , Marek Szyprowski , Michal Hocko , Mike Rapoport , Muchun Song , netdev@vger.kernel.org, Oscar Salvador , Peter Xu , Robin Murphy , Suren Baghdasaryan , Tejun Heo , virtualization@lists.linux.dev, Vlastimil Babka , wireguard@lists.zx2c4.com, x86@kernel.org, Zi Yan Subject: [PATCH v1 20/36] mips: mm: convert __flush_dcache_pages() to __flush_dcache_folio_pages() Date: Thu, 28 Aug 2025 00:01:24 +0200 Message-ID: <20250827220141.262669-21-david@redhat.com> In-Reply-To: <20250827220141.262669-1-david@redhat.com> References: <20250827220141.262669-1-david@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Let's make it clearer that we are operating within a single folio by providing both the folio and the page. This implies that for flush_dcache_folio() we'll now avoid one more page->folio lookup, and that we can safely drop the "nth_page" usage. Cc: Thomas Bogendoerfer Signed-off-by: David Hildenbrand --- arch/mips/include/asm/cacheflush.h | 11 +++++++---- arch/mips/mm/cache.c | 8 ++++---- 2 files changed, 11 insertions(+), 8 deletions(-) diff --git a/arch/mips/include/asm/cacheflush.h b/arch/mips/include/asm/cacheflush.h index 5d283ef89d90d..8d79bfc687d21 100644 --- a/arch/mips/include/asm/cacheflush.h +++ b/arch/mips/include/asm/cacheflush.h @@ -50,13 +50,14 @@ extern void (*flush_cache_mm)(struct mm_struct *mm); extern void (*flush_cache_range)(struct vm_area_struct *vma, unsigned long start, unsigned long end); extern void (*flush_cache_page)(struct vm_area_struct *vma, unsigned long page, unsigned long pfn); -extern void __flush_dcache_pages(struct page *page, unsigned int nr); +extern void __flush_dcache_folio_pages(struct folio *folio, struct page *page, unsigned int nr); #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 static inline void flush_dcache_folio(struct folio *folio) { if (cpu_has_dc_aliases) - __flush_dcache_pages(&folio->page, folio_nr_pages(folio)); + __flush_dcache_folio_pages(folio, folio_page(folio, 0), + folio_nr_pages(folio)); else if (!cpu_has_ic_fills_f_dc) folio_set_dcache_dirty(folio); } @@ -64,10 +65,12 @@ static inline void flush_dcache_folio(struct folio *folio) static inline void flush_dcache_page(struct page *page) { + struct folio *folio = page_folio(page); + if (cpu_has_dc_aliases) - __flush_dcache_pages(page, 1); + __flush_dcache_folio_pages(folio, page, folio_nr_pages(folio)); else if (!cpu_has_ic_fills_f_dc) - folio_set_dcache_dirty(page_folio(page)); + folio_set_dcache_dirty(folio); } #define flush_dcache_mmap_lock(mapping) do { } while (0) diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c index bf9a37c60e9f0..e3b4224c9a406 100644 --- a/arch/mips/mm/cache.c +++ b/arch/mips/mm/cache.c @@ -99,9 +99,9 @@ SYSCALL_DEFINE3(cacheflush, unsigned long, addr, unsigned long, bytes, return 0; } -void __flush_dcache_pages(struct page *page, unsigned int nr) +void __flush_dcache_folio_pages(struct folio *folio, struct page *page, + unsigned int nr) { - struct folio *folio = page_folio(page); struct address_space *mapping = folio_flush_mapping(folio); unsigned long addr; unsigned int i; @@ -117,12 +117,12 @@ void __flush_dcache_pages(struct page *page, unsigned int nr) * get faulted into the tlb (and thus flushed) anyways. */ for (i = 0; i < nr; i++) { - addr = (unsigned long)kmap_local_page(nth_page(page, i)); + addr = (unsigned long)kmap_local_page(page + i); flush_data_cache_page(addr); kunmap_local((void *)addr); } } -EXPORT_SYMBOL(__flush_dcache_pages); +EXPORT_SYMBOL(__flush_dcache_folio_pages); void __flush_anon_page(struct page *page, unsigned long vmaddr) { -- 2.50.1