From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AIpwx48Wh7O8W6VX8oY0vNC/CC3+Rfa8+UDXFYnyGEDBAQvjeixcqz7QY37wIC58ip4IvmqXs5M/ ARC-Seal: i=1; a=rsa-sha256; t=1522742532; cv=none; d=google.com; s=arc-20160816; b=Txwz8y3Yog62aMUxE9/cvUrYexV7x/rMCxeFTPaUrhCflmKCqqxZAEOdJVHdGR5GPY ryJKVVvHXZ9SVATnstl4hPxKkVNbwhHZBaP/Egro46MFWcWA+FzFaEIxNT8SL9E8Vbq1 6fPYFD0N8YX+dnFnpJ/tj7EGckz6XrWy2u34cWUT7HdhYFtOOQOWSONhIdF7K5wegrIt BBsgJfWdmup+HoHjdSDlFUsPJn39FJCRzixYyOsTk8s4dFiUDv7ZtpCmpeQ5vt++zBPi 2SFK/Ja1w+glZW60CPC+V+sUjpI8be221jSot2A2tMsmVM94GCI8+tT5y+RqX6lw36j5 68Lw== 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=OfihvFKJolWQ85Vtx8K3RKJkyi6SwxowHuvy5Ccuazg=; b=SP9uaxlLbDgvz3RbyiNbUOe+jZ6cdhacZ4uGvGC63x4Y24e3ClgPC7ViTK647PRZX3 j7SuO+8oG15w4Odzz7NxPjKPf+46V1lDj+kkJM2XvhUw8CXVMd26zpbhremYS567XLdz 337M/wfdhvvAYsvB7wuHQ54KY4TdxkN6H32SNj1ATlWZjKElLWXM3RWlJhclyPhOPuag xWLEj8XprQbUXRnGNSuMZICEzwudEe6Kf3/FuKrhwypWH5m82ikuvJK4fvYXv7P38pYi DeE0z2h89Ljo4wVECfkL1OIhhqtoI25dtiYaL7BjVQRxiMLCwq6B5cicbRjifVGUgWtU O7eA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@codeaurora.org header.s=default header.b=JFV7FCcH; dkim=pass header.i=@codeaurora.org header.s=default header.b=JFV7FCcH; 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=JFV7FCcH; dkim=pass header.i=@codeaurora.org header.s=default header.b=JFV7FCcH; 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 2CA7760C65 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 v8 2/4] arm64: tlbflush: Introduce __flush_tlb_kernel_pgtable Date: Tue, 3 Apr 2018 13:30:44 +0530 Message-Id: <1522742446-5084-3-git-send-email-cpandya@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1522742446-5084-1-git-send-email-cpandya@codeaurora.org> References: <1522742446-5084-1-git-send-email-cpandya@codeaurora.org> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1596711273338425981?= X-GMAIL-MSGID: =?utf-8?q?1596711273338425981?= 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 --- 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