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 X-Spam-Level: X-Spam-Status: No, score=-8.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,UNPARSEABLE_RELAY, 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 78212C43382 for ; Fri, 28 Sep 2018 00:53:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 44B902172C for ; Fri, 28 Sep 2018 00:53:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 44B902172C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=c-sky.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728985AbeI1HOv (ORCPT ); Fri, 28 Sep 2018 03:14:51 -0400 Received: from smtp2200-217.mail.aliyun.com ([121.197.200.217]:57518 "EHLO smtp2200-217.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728742AbeI1HNr (ORCPT ); Fri, 28 Sep 2018 03:13:47 -0400 X-Alimail-AntiSpam: AC=CONTINUE;BC=0.08640236|-1;CH=blue;FP=1691684883534943193|1|1|12|0|-1|-1|-1;HT=e01e01546;MF=ren_guo@c-sky.com;NM=1;PH=DS;RN=18;RT=18;SR=0;TI=SMTPD_---.CwkXlEv_1538095950; Received: from localhost(mailfrom:ren_guo@c-sky.com fp:SMTPD_---.CwkXlEv_1538095950) by smtp.aliyun-inc.com(10.147.41.143); Fri, 28 Sep 2018 08:52:30 +0800 From: Guo Ren To: akpm@linux-foundation.org, arnd@arndb.de, daniel.lezcano@linaro.org, davem@davemloft.net, gregkh@linuxfoundation.org, jason@lakedaemon.net, marc.zyngier@arm.com, mark.rutland@arm.com, mchehab+samsung@kernel.org, peterz@infradead.org, robh@kernel.org, robh+dt@kernel.org, tglx@linutronix.de Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, devicetree@vger.kernel.org, green.hu@gmail.com, Guo Ren Subject: [PATCH V6 32/33] csky: fix flush_cache_range and tlb_start_vma Date: Fri, 28 Sep 2018 08:51:29 +0800 Message-Id: <33f94d1b44080b4dd39759443a8c4704c70cab01.1538058840.git.ren_guo@c-sky.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <62098e7d0a7fbdd09f44d7e23333dad258a01bd2.1538058840.git.ren_guo@c-sky.com> References: <62098e7d0a7fbdd09f44d7e23333dad258a01bd2.1538058840.git.ren_guo@c-sky.com> In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In flush_cache_range(vma, ...) cache_wbinv_range() couldn't deal with vma->mm's asid for cache_flush_line. So we use cache_wbinv_all() first and we'll improve with cache_flush(vma, start, end) in future. For tlb_start_vma, we make it the same as other arch. Signed-off-by: Guo Ren --- arch/csky/abiv1/inc/abi/cacheflush.h | 6 +++++- arch/csky/abiv1/inc/abi/tlb.h | 2 +- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/csky/abiv1/inc/abi/cacheflush.h b/arch/csky/abiv1/inc/abi/cacheflush.h index f0de49c..4ae81b0 100644 --- a/arch/csky/abiv1/inc/abi/cacheflush.h +++ b/arch/csky/abiv1/inc/abi/cacheflush.h @@ -15,7 +15,11 @@ extern void flush_dcache_page(struct page *); #define flush_cache_page(vma,page,pfn) cache_wbinv_all() #define flush_cache_dup_mm(mm) cache_wbinv_all() -#define flush_cache_range(mm,start,end) cache_wbinv_range(start, end) +/* + * if (current_mm != vma->mm) cache_wbinv_range(start, end) will be broken. + * Use cache_wbinv_all() here and need to be improved in future. + */ +#define flush_cache_range(vma,start,end) cache_wbinv_all() #define flush_cache_vmap(start, end) cache_wbinv_range(start, end) #define flush_cache_vunmap(start, end) cache_wbinv_range(start, end) diff --git a/arch/csky/abiv1/inc/abi/tlb.h b/arch/csky/abiv1/inc/abi/tlb.h index 6d461f3..3b9d6d9 100644 --- a/arch/csky/abiv1/inc/abi/tlb.h +++ b/arch/csky/abiv1/inc/abi/tlb.h @@ -7,6 +7,6 @@ #define tlb_start_vma(tlb, vma) \ do { \ if (!tlb->fullmm) \ - cache_wbinv_all(); \ + flush_cache_range(vma, vma->vm_start, vma->vm_end); \ } while (0) #endif /* __ABI_CSKY_TLB_H */ -- 2.7.4