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=DKIM_INVALID,DKIM_SIGNED, 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 498EAC352A3 for ; Tue, 11 Feb 2020 17:52:31 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 0A31020661 for ; Tue, 11 Feb 2020 17:52:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="U/dRmCwb" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0A31020661 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id B52824AED5; Tue, 11 Feb 2020 12:52:30 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@kernel.org Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5zisv4g1VRyP; Tue, 11 Feb 2020 12:52:29 -0500 (EST) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 94D374AEDD; Tue, 11 Feb 2020 12:52:28 -0500 (EST) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id D59534ACF3 for ; Tue, 11 Feb 2020 12:52:26 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Gs3sxIHsImXI for ; Tue, 11 Feb 2020 12:52:26 -0500 (EST) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id 2039040456 for ; Tue, 11 Feb 2020 12:52:24 -0500 (EST) Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 5480320661; Tue, 11 Feb 2020 17:52:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581443543; bh=nwuR2uWCcoRqKVX0jc68PcrHdtG3RZH2Nm1tXCXwEfo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=U/dRmCwbsNRjuMAnf0BBQZsTuNSDxWEebKAwTif4CxWRts/CgY25Ak470/qhj6xlf 2OeUtQ036cMaTKpQO0qTSsT+6URFXid05iM9A5df8Kf5HdM1hwO/QL4GfIxr+Cgy9r rURnrtQ0WEETid1RYNhuI1kknJ9j4jLjerZ1PJaQ= Received: from 78.163-31-62.static.virginmediabusiness.co.uk ([62.31.163.78] helo=why.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1j1Zg8-004O7k-SI; Tue, 11 Feb 2020 17:50:33 +0000 From: Marc Zyngier To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Subject: [PATCH v2 67/94] arm64: Add level-hinted TLB invalidation helper Date: Tue, 11 Feb 2020 17:49:11 +0000 Message-Id: <20200211174938.27809-68-maz@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200211174938.27809-1-maz@kernel.org> References: <20200211174938.27809-1-maz@kernel.org> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 62.31.163.78 X-SA-Exim-Rcpt-To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, andre.przywara@arm.com, christoffer.dall@arm.com, Dave.Martin@arm.com, jintack@cs.columbia.edu, alexandru.elisei@arm.com, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Cc: Andre Przywara , Dave Martin X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu Add a level-hinted TLB invalidation helper that only gets used if ARMv8.4-TTL gets detected. Signed-off-by: Marc Zyngier --- arch/arm64/include/asm/tlbflush.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h index bc3949064725..a3f70778a325 100644 --- a/arch/arm64/include/asm/tlbflush.h +++ b/arch/arm64/include/asm/tlbflush.h @@ -10,6 +10,7 @@ #ifndef __ASSEMBLY__ +#include #include #include #include @@ -59,6 +60,35 @@ __ta; \ }) +#define TLBI_TTL_MASK GENMASK_ULL(47, 44) + +#define __tlbi_level(op, addr, level) \ + do { \ + u64 arg = addr; \ + \ + if (cpus_have_const_cap(ARM64_HAS_ARMv8_4_TTL) && \ + level) { \ + u64 ttl = level; \ + \ + switch (PAGE_SIZE) { \ + case SZ_4K: \ + ttl |= 1 << 2; \ + break; \ + case SZ_16K: \ + ttl |= 2 << 2; \ + break; \ + case SZ_64K: \ + ttl |= 3 << 2; \ + break; \ + } \ + \ + arg &= ~TLBI_TTL_MASK; \ + arg |= FIELD_PREP(TLBI_TTL_MASK, ttl); \ + } \ + \ + __tlbi(op, arg); \ + } while(0) + /* * TLB Invalidation * ================ -- 2.20.1 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm