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=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 C829AC43381 for ; Thu, 21 Feb 2019 12:22:19 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 986692084D for ; Thu, 21 Feb 2019 12:22:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="YrbBsIRo" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 986692084D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=doMdPlmsgX7588nRWlcZ/jKxu8xt0EDCnBXiRb4y5ws=; b=YrbBsIRoWC60rtcOxuFD88Ysf2 RSPh2EjYSEjZv0zoEWiFcwS/O12r8MF4XKwl8qHUi7wdkHl0/adqXUIwusZ7x7QBt0gADIZNqSlU+ awTOF3YKg6eWg5Ki0uA0JFMiq3fQZKzLIOQ9CXk3j9OBuSkNFMaM40a/JTgsTQfWxDzlHdPEBPPKb 1oYeeJ3U1xVtcPUt3SuzOlrdTVOL+0fuWnE1THti5VWKolWPLqDfp7D0o4duqB8RmFO2EE0H+Xo2H JOtRNOTVEZMmpNXhoqRLFNVQmkPLoDFNQNXXPn/FIdzEJokv9GDeJMyVaRCN4YO86Wn47nxgtq6v2 1dPDVzjA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gwnMj-0005Qo-8R; Thu, 21 Feb 2019 12:22:13 +0000 Received: from foss.arm.com ([217.140.101.70]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gwnLl-00044H-N3 for linux-arm-kernel@lists.infradead.org; Thu, 21 Feb 2019 12:21:16 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 6960980D; Thu, 21 Feb 2019 04:21:13 -0800 (PST) Received: from e119886-lin.cambridge.arm.com (unknown [10.37.6.16]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 2F8F13F575; Thu, 21 Feb 2019 04:21:12 -0800 (PST) From: Andrew Murray To: Catalin Marinas , Will Deacon Subject: [PATCH v2 6/6] arm64: Advertise ARM64_HAS_DCPODP cpu feature Date: Thu, 21 Feb 2019 12:20:57 +0000 Message-Id: <1550751657-30252-7-git-send-email-andrew.murray@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1550751657-30252-1-git-send-email-andrew.murray@arm.com> References: <1550751657-30252-1-git-send-email-andrew.murray@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190221_042114_058473_173F5A11 X-CRM114-Status: GOOD ( 11.53 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Szabolcs Nagy , dave.martin@arm.com, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Advertise ARM64_HAS_DCPOP when both DC CVAP and DC CVADP are supported. Signed-off-by: Andrew Murray --- arch/arm64/include/asm/cpucaps.h | 3 ++- arch/arm64/kernel/cpufeature.c | 9 +++++++++ 2 files changed, 11 insertions(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/cpucaps.h b/arch/arm64/include/asm/cpucaps.h index 82e9099..4a2a77d 100644 --- a/arch/arm64/include/asm/cpucaps.h +++ b/arch/arm64/include/asm/cpucaps.h @@ -60,7 +60,8 @@ #define ARM64_HAS_ADDRESS_AUTH_IMP_DEF 39 #define ARM64_HAS_GENERIC_AUTH_ARCH 40 #define ARM64_HAS_GENERIC_AUTH_IMP_DEF 41 +#define ARM64_HAS_DCPODP 42 -#define ARM64_NCAPS 42 +#define ARM64_NCAPS 43 #endif /* __ASM_CPUCAPS_H */ diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index 7e76c92..2f5d261 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -1319,6 +1319,15 @@ static const struct arm64_cpu_capabilities arm64_features[] = { .field_pos = ID_AA64ISAR1_DPB_SHIFT, .min_field_value = 1, }, + { + .desc = "Data cache clean to Point of Deep Persistence", + .capability = ARM64_HAS_DCPODP, + .type = ARM64_CPUCAP_SYSTEM_FEATURE, + .matches = has_cpuid_feature, + .sys_reg = SYS_ID_AA64ISAR1_EL1, + .field_pos = ID_AA64ISAR1_DPB_SHIFT, + .min_field_value = 2, + }, #endif #ifdef CONFIG_ARM64_SVE { -- 2.7.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel