From patchwork Thu May 28 01:10:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lichao Liu X-Patchwork-Id: 225170 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1A976C433E0 for ; Thu, 28 May 2020 01:13:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E6E462145D for ; Thu, 28 May 2020 01:13:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726308AbgE1BNP (ORCPT ); Wed, 27 May 2020 21:13:15 -0400 Received: from mail.loongson.cn ([114.242.206.163]:41510 "EHLO loongson.cn" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725850AbgE1BNO (ORCPT ); Wed, 27 May 2020 21:13:14 -0400 Received: from localhost.localdomain (unknown [114.242.249.80]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9Axb+iSD89eyec5AA--.806S2; Thu, 28 May 2020 09:10:50 +0800 (CST) From: Lichao Liu To: Thomas Bogendoerfer Cc: Paul Burton , Robin Murphy , Geert Uytterhoeven , Max Filippov , Lichao Liu , jiaxun.yang@flygoat.com, yuanjunqing@loongson.cn, linux-mips@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH] MIPS: CPU_LOONGSON2EF need software to maintain cache consistency Date: Thu, 28 May 2020 09:10:31 +0800 Message-Id: <20200528011031.30472-1-liulichao@loongson.cn> X-Mailer: git-send-email 2.17.1 X-CM-TRANSID: AQAAf9Axb+iSD89eyec5AA--.806S2 X-Coremail-Antispam: 1UD129KBjvdXoWrur1fCw43GF15Gr17Xw1kXwb_yoW3GFbEkr srK34fWrs5ZFWUXFykJrs5GFyUXayDu347AF1DKF1YkFy5Zw4rGay7JFZ7Jr1UuFs09rWf t3ZxXrWkCwn2qjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbxkFF20E14v26r4j6ryUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_Gr0_Xr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Cr0_ Gr1UM28EF7xvwVC2z280aVAFwI0_Gr0_Cr1l84ACjcxK6I8E87Iv6xkF7I0E14v26r4UJV WxJr1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E 2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJV W8JwACjcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I648v4I1lFIxGxcIEc7CjxVA2 Y2ka0xkIwI1l42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4 xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r1q6r43 MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6xkF7I 0E14v26r1j6r4UMIIF0xvE42xK8VAvwI8IcIk0rVWrZr1j6s0DMIIF0xvEx4A2jsIE14v2 6r1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Jr0_GrUvcSsGvfC2KfnxnUUI43ZEXa7VUb XdbUUUUUU== X-CM-SenderInfo: xolxzxpfkd0qxorr0wxvrqhubq/ Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org CPU_LOONGSON2EF need software to maintain cache consistency, so modify the 'cpu_needs_post_dma_flush' function to return true when the cpu type is CPU_LOONGSON2EF. Cc: stable@vger.kernel.org Signed-off-by: Lichao Liu --- arch/mips/mm/dma-noncoherent.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/mips/mm/dma-noncoherent.c b/arch/mips/mm/dma-noncoherent.c index fcea92d95d86..563c2c0d0c81 100644 --- a/arch/mips/mm/dma-noncoherent.c +++ b/arch/mips/mm/dma-noncoherent.c @@ -33,6 +33,7 @@ static inline bool cpu_needs_post_dma_flush(void) case CPU_R10000: case CPU_R12000: case CPU_BMIPS5000: + case CPU_LOONGSON2EF: return true; default: /*