From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Authentication-Results: smtp.codeaurora.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="bri4haWb"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="hQq7ZXhY" DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 0ECD7607E5 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932302AbeFFHCO (ORCPT + 25 others); Wed, 6 Jun 2018 03:02:14 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:56092 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932247AbeFFHBt (ORCPT ); Wed, 6 Jun 2018 03:01:49 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 16417605BD Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=cpandya@codeaurora.org From: Chintan Pandya To: will.deacon@arm.com, catalin.marinas@arm.com, mark.rutland@arm.com, akpm@linux-foundation.org Cc: toshi.kani@hpe.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Chintan Pandya Subject: [PATCH v13 2/3] arm64: tlbflush: Introduce __flush_tlb_kernel_pgtable Date: Wed, 6 Jun 2018 12:31:20 +0530 Message-Id: <1528268481-19299-3-git-send-email-cpandya@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1528268481-19299-1-git-send-email-cpandya@codeaurora.org> References: <1528268481-19299-1-git-send-email-cpandya@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add an interface to invalidate intermediate page tables from TLB for kernel. Signed-off-by: Chintan Pandya --- arch/arm64/include/asm/tlbflush.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h index dfc61d7..a4a1901 100644 --- a/arch/arm64/include/asm/tlbflush.h +++ b/arch/arm64/include/asm/tlbflush.h @@ -218,6 +218,13 @@ static inline void __flush_tlb_pgtable(struct mm_struct *mm, dsb(ish); } +static inline void __flush_tlb_kernel_pgtable(unsigned long kaddr) +{ + unsigned long addr = __TLBI_VADDR(kaddr, 0); + + __tlbi(vaae1is, addr); + dsb(ish); +} #endif #endif -- Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc., is a member of Code Aurora Forum, a Linux Foundation Collaborative Project