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 40C6CC433EF for ; Mon, 23 May 2022 17:40:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241211AbiEWRkk (ORCPT ); Mon, 23 May 2022 13:40:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55522 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242407AbiEWR1n (ORCPT ); Mon, 23 May 2022 13:27:43 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 31FE87CB5C; Mon, 23 May 2022 10:23:08 -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 CF4CF60919; Mon, 23 May 2022 17:23:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C10A7C385AA; Mon, 23 May 2022 17:23:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1653326587; bh=bmNDXt0dhhCHvZC50SZNQe0bZ4XDsvewzFJ1e8Dm0K0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RCpRHU0D2zoJKaB8Q4CY9MqZpiuB1/HSeqqAC9gxS0fnQiosYEdFzw6+ArFkAO7rT 5EIywzvamlL7OyNMV2B8LZGfhPc8Pl3bzhzPiCsGdhIdHHqDh9sGONJ7+uoeqPX4ZX VNWoRVITQbkAvomWEQ7ecoFY/ZMTJbI8Czm8mNzE= 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 5.15 127/132] arm64: Enable repeat tlbi workaround on KRYO4XX gold CPUs Date: Mon, 23 May 2022 19:05:36 +0200 Message-Id: <20220523165844.724849103@linuxfoundation.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220523165823.492309987@linuxfoundation.org> References: <20220523165823.492309987@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 d410a47ffa57..7c1750bcc5bd 100644 --- a/Documentation/arm64/silicon-errata.rst +++ b/Documentation/arm64/silicon-errata.rst @@ -163,6 +163,9 @@ 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 a33d7b8f3b93..c67c19d70159 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