From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AIpwx4+BxupHS0Od45grEmfepJrff7Tn8KTbVHdsyXSy8/+Ot7xfE+7XWCExFCysWZ6kjhLeE514 ARC-Seal: i=1; a=rsa-sha256; t=1522234760; cv=none; d=google.com; s=arc-20160816; b=y8DZuPhmhmmjXb2cph0fDSVZARSDrVFEW/cvz2oz+87M0X0bVguiDs1TJn7dmjoxEy UMs7xBXSixHmcwXb2Y/51XWZnrWCohG9nxX+SrI3XIQg3SqSDWXobLfHiUC4Ypdra+MR U+6ATpqGZTbFqtHADUL+29m+B3nFUQyk+4ovOF1zz+wLRHxP7RiiwPD3AH/pr4acENtD PSukitvuwaGlCYRmGFN7zdDcRxer9opat0zC97Kd2Z90SRwPefEYtvh+MEqsf/ZwYlU8 nF2lSOoiTqdJRo6Pj4lr5RdwzVzyXTLuKlIY8MoWLjvnNErXO8nCZrJg7SnolM3VQPTF +meQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=references:in-reply-to:message-id:date:subject:cc:to:from :dmarc-filter:dkim-signature:dkim-signature :arc-authentication-results; bh=VhYPyw4Nkqe6iBRV9IccST49vWm0sIBvlGFmqhaaKlk=; b=P7zMughKPvusrPiNqr2AiBlWTPz57y0/rzIafomi29zZehS8ypAXnEJ0ldODuYrSdV qTNuJIdwAXap08m716I1Czs98lHBe7qRi9EDbTfTvV6uOZZaOH9an8ebt6VY+i6WBDw8 dd3Ozf/9dt4Jm+P624E2ubUj0GeFhHUHTd7065ECEqws/SYVvd/Dkf8VDeFh12j7jUmL SkD1ltH9Wwhb2HrWidpZKQ9EWH8ZskAF2fjuNecf2ti+CyA4Albmy7xSw0sEJ0r8M1zs xZDBw1cjgM4dFaji7BA//0H9BfRGdycpsmF3SzsQqrdYlQrfd/4odcSxZzC16PaZhzUU 8xpQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@codeaurora.org header.s=default header.b=X5opztE+; dkim=pass header.i=@codeaurora.org header.s=default header.b=D0J4iV3k; spf=pass (google.com: domain of cpandya@codeaurora.org designates 198.145.29.96 as permitted sender) smtp.mailfrom=cpandya@codeaurora.org Authentication-Results: mx.google.com; dkim=pass header.i=@codeaurora.org header.s=default header.b=X5opztE+; dkim=pass header.i=@codeaurora.org header.s=default header.b=D0J4iV3k; spf=pass (google.com: domain of cpandya@codeaurora.org designates 198.145.29.96 as permitted sender) smtp.mailfrom=cpandya@codeaurora.org DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 1E59360C67 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: catalin.marinas@arm.com, will.deacon@arm.com, mark.rutland@arm.com, toshi.kani@hpe.com Cc: arnd@arndb.de, ard.biesheuvel@linaro.org, marc.zyngier@arm.com, james.morse@arm.com, kristina.martsenko@arm.com, takahiro.akashi@linaro.org, gregkh@linuxfoundation.org, tglx@linutronix.de, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, akpm@linux-foundation.org, Chintan Pandya Subject: [PATCH v6 2/4] arm64: tlbflush: Introduce __flush_tlb_kernel_pgtable Date: Wed, 28 Mar 2018 16:28:49 +0530 Message-Id: <1522234731-27397-3-git-send-email-cpandya@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1522234731-27397-1-git-send-email-cpandya@codeaurora.org> References: <1522234731-27397-1-git-send-email-cpandya@codeaurora.org> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1596178835954343774?= X-GMAIL-MSGID: =?utf-8?q?1596178835954343774?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Add an interface to invalidate intermediate page tables from TLB for kernel. Signed-off-by: Chintan Pandya --- From: V5->V6: - No change arch/arm64/include/asm/tlbflush.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h index 9e82dd7..6a4816d 100644 --- a/arch/arm64/include/asm/tlbflush.h +++ b/arch/arm64/include/asm/tlbflush.h @@ -209,6 +209,12 @@ static inline void __flush_tlb_pgtable(struct mm_struct *mm, dsb(ish); } +static inline void __flush_tlb_kernel_pgtable(unsigned long addr) +{ + addr >>= 12; + __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