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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,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 16A12C433DF for ; Mon, 25 May 2020 12:55:02 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D53732073B for ; Mon, 25 May 2020 12:55:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="SFq1tqKz" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D53732073B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=S2jXn+PB6jk0Ks1je0iDhZMNHSBlp3WsKhUImukFD+g=; b=SFq1tqKzxIWo6g ECjbgFOD24CocauOOqHDgfXB8cbWpgltwxvt+VnZ1ELcusBglkyRBstrmB30sekf47ovifpB1xccK XwBPsdTzsWJpskRXFAOMJ/BsW9ta51qrlHQwri2mNJirG078d71/4EOxR+OHrI+MlC4zrNieRCYK/ 4YWoZtjd1pY+iqNBjVC/RfZ/5QWZQE5WZVDHHOiUrm6pfVbh5lyf10J3UNjGN4u+dx2qcU8eH8+iP wDpVS2xRhFsoTlMenXK8yn5iB1QcZuZNLOE4rhGr7t8y2m346ja9A3kYGfd6FoU0DnWB9CLejf7wL M//143KKpuk0HnRUjkvg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jdCdA-0001Nq-7Z; Mon, 25 May 2020 12:55:00 +0000 Received: from szxga07-in.huawei.com ([45.249.212.35] helo=huawei.com) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jdCbo-0008PD-C9 for linux-arm-kernel@lists.infradead.org; Mon, 25 May 2020 12:53:39 +0000 Received: from DGGEMS407-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 66F1D9D730E6B751C158; Mon, 25 May 2020 20:53:32 +0800 (CST) Received: from DESKTOP-KKJBAGG.china.huawei.com (10.173.220.25) by DGGEMS407-HUB.china.huawei.com (10.3.19.207) with Microsoft SMTP Server id 14.3.487.0; Mon, 25 May 2020 20:53:22 +0800 From: Zhenyu Ye To: , , , , , , , , , , , , , , , , Subject: [PATCH v3 3/6] arm64: Add tlbi_user_level TLB invalidation helper Date: Mon, 25 May 2020 20:52:57 +0800 Message-ID: <20200525125300.794-4-yezhenyu2@huawei.com> X-Mailer: git-send-email 2.22.0.windows.1 In-Reply-To: <20200525125300.794-1-yezhenyu2@huawei.com> References: <20200525125300.794-1-yezhenyu2@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.173.220.25] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200525_055337_025565_0CEF67F4 X-CRM114-Status: GOOD ( 11.58 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, yezhenyu2@huawei.com, linux-kernel@vger.kernel.org, xiexiangyou@huawei.com, zhangshaokun@hisilicon.com, linux-mm@kvack.org, arm@kernel.org, prime.zeng@hisilicon.com, kuhn.chenqun@huawei.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add a level-hinted parameter to __tlbi_user, which only gets used if ARMv8.4-TTL gets detected. ARMv8.4-TTL provides the TTL field in tlbi instruction to indicate the level of translation table walk holding the leaf entry for the address that is being invalidated. This patch set the default level value to 0. Signed-off-by: Zhenyu Ye --- arch/arm64/include/asm/tlbflush.h | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h index 8adbd6fd8489..969dcf88e2a9 100644 --- a/arch/arm64/include/asm/tlbflush.h +++ b/arch/arm64/include/asm/tlbflush.h @@ -88,6 +88,12 @@ __tlbi(op, arg); \ } while (0) +#define __tlbi_user_level(op, arg, level) do { \ + if (arm64_kernel_unmapped_at_el0()) \ + __tlbi_level(op, (arg | USER_ASID_FLAG), level); \ +} while (0) + + /* * TLB Invalidation * ================ @@ -230,11 +236,11 @@ static inline void __flush_tlb_range(struct vm_area_struct *vma, dsb(ishst); for (addr = start; addr < end; addr += stride) { if (last_level) { - __tlbi(vale1is, addr); - __tlbi_user(vale1is, addr); + __tlbi_level(vale1is, addr, 0); + __tlbi_user_level(vale1is, addr, 0); } else { - __tlbi(vae1is, addr); - __tlbi_user(vae1is, addr); + __tlbi_level(vae1is, addr, 0); + __tlbi_user_level(vae1is, addr, 0); } } dsb(ish); -- 2.19.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel