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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C671FC43219 for ; Mon, 23 May 2022 18:08:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244737AbiEWSHO (ORCPT ); Mon, 23 May 2022 14:07:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42374 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243604AbiEWRiV (ORCPT ); Mon, 23 May 2022 13:38:21 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A2AFA93987; Mon, 23 May 2022 10:32:32 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 43B8A60B2C; Mon, 23 May 2022 17:31:36 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1D012C385A9; Mon, 23 May 2022 17:31:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1653327095; bh=vck1sxQuINJLtEffACLVYoU+epqqYfT3LqQdONy1Zyc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BLmelLSBkj4r3YjAWnFpGBasTUs3Ci6d7JcLLOBaV70DoBhWRudhPuuN2smuRlQ+B zmndt9eOPrfiBhbgQh/KsGJgScWE40IZTXnBWs7VQ9tvIFwUMiAoOEmoSJljebygBi zetz7NPXW0CFfyYqYP0Z0dD18edpJ9jfHbNmcSAk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Shreyas K K , Sai Prakash Ranjan , Will Deacon , Sasha Levin Subject: [PATCH 5.17 154/158] arm64: Enable repeat tlbi workaround on KRYO4XX gold CPUs Date: Mon, 23 May 2022 19:05:11 +0200 Message-Id: <20220523165855.706011979@linuxfoundation.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220523165830.581652127@linuxfoundation.org> References: <20220523165830.581652127@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Shreyas K K [ Upstream commit 51f559d66527e238f9a5f82027bff499784d4eac ] Add KRYO4XX gold/big cores to the list of CPUs that need the repeat TLBI workaround. Apply this to the affected KRYO4XX cores (rcpe to rfpe). The variant and revision bits are implementation defined and are different from the their Cortex CPU counterparts on which they are based on, i.e., (r0p0 to r3p0) is equivalent to (rcpe to rfpe). Signed-off-by: Shreyas K K Reviewed-by: Sai Prakash Ranjan Link: https://lore.kernel.org/r/20220512110134.12179-1-quic_shrekk@quicinc.com Signed-off-by: Will Deacon Signed-off-by: Sasha Levin --- Documentation/arm64/silicon-errata.rst | 3 +++ arch/arm64/kernel/cpu_errata.c | 2 ++ 2 files changed, 5 insertions(+) diff --git a/Documentation/arm64/silicon-errata.rst b/Documentation/arm64/silicon-errata.rst index ea281dd75517..29b136849d30 100644 --- a/Documentation/arm64/silicon-errata.rst +++ b/Documentation/arm64/silicon-errata.rst @@ -189,6 +189,9 @@ stable kernels. +----------------+-----------------+-----------------+-----------------------------+ | Qualcomm Tech. | Kryo4xx Silver | N/A | ARM64_ERRATUM_1024718 | +----------------+-----------------+-----------------+-----------------------------+ +| Qualcomm Tech. | Kryo4xx Gold | N/A | ARM64_ERRATUM_1286807 | ++----------------+-----------------+-----------------+-----------------------------+ + +----------------+-----------------+-----------------+-----------------------------+ | Fujitsu | A64FX | E#010001 | FUJITSU_ERRATUM_010001 | +----------------+-----------------+-----------------+-----------------------------+ diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index 146fa2e76834..10c865e311a0 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -208,6 +208,8 @@ static const struct arm64_cpu_capabilities arm64_repeat_tlbi_list[] = { #ifdef CONFIG_ARM64_ERRATUM_1286807 { ERRATA_MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 3, 0), + /* Kryo4xx Gold (rcpe to rfpe) => (r0p0 to r3p0) */ + ERRATA_MIDR_RANGE(MIDR_QCOM_KRYO_4XX_GOLD, 0xc, 0xe, 0xf, 0xe), }, #endif {}, -- 2.35.1