From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AIpwx4+BclQwp4kLQ3HN32kijyVquloGv7jj22Tgp2JjPG1qCvdQhWdKb86GdPHYkupvHZPaA7gs ARC-Seal: i=1; a=rsa-sha256; t=1522240312; cv=none; d=google.com; s=arc-20160816; b=zfcK1i0KTPTzeo00yOJd059tpexI3U53VbTKFR1gUo0MMnXtuO+23ZnenOkyAaRQ+Q GCDVe5Y6BZnauYUpEAQ+KgveAvKB1v970Zf1Wyu/47d0T/hbR6Cdc7pmbtfM5nKNlHG0 ey/pLZ9G9Db5XL1M42cfYw10RqkOv9GDhV8x0EAFSdGuq4CfG7B2HAXSY0F30hx73lpf guwg4I62d+5Q/7dj70ei6bgdSxvdQmgPuGbcPEOKYA6zO9ITOQnq1YU1SeH/ptBAcypF MbMIi0qMMkIjH2NQAy/69kpLQxkEITaZ7Fqed0fd4xVUeNgUKviYDwgopszXcE+8OgOk Yj9g== 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=dXkQYvBpE1NZrtVnHVGkRXiBhJON3mGZ1eWY7gFnRDBGE8XfUNvevcu/jsztq2WC10 Y8Mc8ODC9gkmgbgeNniF/B45up1+KqcuSj3Egh01th9n8bAB6BeEJZe9tclk93xjWXG/ 0nCJ+IHoB9RjyOcqcjr2CDTQCLIEOMt3WFe30sYDP1d4nTc2QAmOfpJAmoCS6dM5zyXH 38hwA6vQbYsUzhdQZN9u9z3gmf7k08nr0p8BQe3YZqgIt7REZxFRI/5DTMTbMpSI/hPr qhwhkdMFgF5KdNy+sz8rjvh6mHtyOvrU5f12CdwVa5yaAXtj/e1gn9oeY7z6pXcIDO0M QQbg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@codeaurora.org header.s=default header.b=LM9FjIPJ; dkim=pass header.i=@codeaurora.org header.s=default header.b=LM9FjIPJ; 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=LM9FjIPJ; dkim=pass header.i=@codeaurora.org header.s=default header.b=LM9FjIPJ; 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 A382260C67 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 v7 2/4] arm64: tlbflush: Introduce __flush_tlb_kernel_pgtable Date: Wed, 28 Mar 2018 18:01:20 +0530 Message-Id: <1522240282-12104-3-git-send-email-cpandya@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1522240282-12104-1-git-send-email-cpandya@codeaurora.org> References: <1522240282-12104-1-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?1596184658260289758?= 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