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Tue, 18 May 2021 10:15:55 +0000 From: Dong Aisheng To: linux-arm-kernel@lists.infradead.org Cc: dongas86@gmail.com, Dong Aisheng Subject: [PATCH 1/4] arm64: mm: remove unneeded SWAPPER_INIT_MAP_SIZE Date: Tue, 18 May 2021 18:14:02 +0800 Message-Id: <20210518101405.1048860-2-aisheng.dong@nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210518101405.1048860-1-aisheng.dong@nxp.com> References: <20210518101405.1048860-1-aisheng.dong@nxp.com> X-Originating-IP: [119.31.174.66] X-ClientProxiedBy: SG2PR06CA0217.apcprd06.prod.outlook.com (2603:1096:4:68::25) To AM6PR04MB4966.eurprd04.prod.outlook.com (2603:10a6:20b:2::14) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (119.31.174.66) by SG2PR06CA0217.apcprd06.prod.outlook.com (2603:1096:4:68::25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4108.25 via Frontend Transport; Tue, 18 May 2021 10:15:53 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 3eeed9a3-190b-44f5-0dc3-08d919e5ec0e X-MS-TrafficTypeDiagnostic: AM5PR0401MB2450: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:161; 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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Since commit cdef5f6e9e0e ("arm64: mm: allocate pagetables anywhere"), arm64 kernel supports allocate pagetables anywhere and this macro definition is not used anymore. Signed-off-by: Dong Aisheng Acked-by: Mark Rutland --- arch/arm64/include/asm/kernel-pgtable.h | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/arm64/include/asm/kernel-pgtable.h b/arch/arm64/include/asm/kernel-pgtable.h index d44df9d62fc9..e2f103cce7c1 100644 --- a/arch/arm64/include/asm/kernel-pgtable.h +++ b/arch/arm64/include/asm/kernel-pgtable.h @@ -100,9 +100,6 @@ #define SWAPPER_TABLE_SHIFT PMD_SHIFT #endif -/* The size of the initial kernel direct mapping */ -#define SWAPPER_INIT_MAP_SIZE (_AC(1, UL) << SWAPPER_TABLE_SHIFT) - /* * Initial memory map attributes. */ From patchwork Tue May 18 10:14:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dong Aisheng X-Patchwork-Id: 12264515 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=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,MSGID_FROM_MTA_HEADER,SPF_HELO_NONE, SPF_PASS,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 4DA76C433B4 for ; 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'count' actually represents the extra entries required, no need minus 1. Signed-off-by: Dong Aisheng Acked-by: Catalin Marinas --- arch/arm64/kernel/head.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S index 96873dfa67fd..b70db34458ec 100644 --- a/arch/arm64/kernel/head.S +++ b/arch/arm64/kernel/head.S @@ -195,7 +195,7 @@ SYM_CODE_END(preserve_boot_args) and \iend, \iend, \istart // iend = (vend >> shift) & (ptrs - 1) mov \istart, \ptrs mul \istart, \istart, \count - add \iend, \iend, \istart // iend += (count - 1) * ptrs + add \iend, \iend, \istart // iend += count * ptrs // our entries span multiple tables lsr \istart, \vstart, \shift From patchwork Tue May 18 10:14:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dong Aisheng X-Patchwork-Id: 12264517 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=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,MSGID_FROM_MTA_HEADER,SPF_HELO_NONE, SPF_PASS,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 3662CC433ED for ; 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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org x5 is not used in the following map_memory. Instead, __pa(__idmap_text_start) is stored in x3 which is used later. Signed-off-by: Dong Aisheng Acked-by: Mark Rutland Acked-by: Catalin Marinas --- arch/arm64/kernel/head.S | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S index b70db34458ec..d266b4c6287d 100644 --- a/arch/arm64/kernel/head.S +++ b/arch/arm64/kernel/head.S @@ -354,7 +354,6 @@ SYM_FUNC_START_LOCAL(__create_page_tables) #endif 1: ldr_l x4, idmap_ptrs_per_pgd - mov x5, x3 // __pa(__idmap_text_start) adr_l x6, __idmap_text_end // __pa(__idmap_text_end) map_memory x0, x1, x3, x6, x7, x3, x4, x10, x11, x12, x13, x14 From patchwork Tue May 18 10:14:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dong Aisheng X-Patchwork-Id: 12264521 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=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,MSGID_FROM_MTA_HEADER,SPF_HELO_NONE, SPF_PASS,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 984D7C433B4 for ; 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dkim=none (message not signed) header.d=none;lists.infradead.org; dmarc=none action=none header.from=nxp.com; Received: from AM6PR04MB4966.eurprd04.prod.outlook.com (2603:10a6:20b:2::14) by AM5PR0401MB2450.eurprd04.prod.outlook.com (2603:10a6:203:34::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4129.28; Tue, 18 May 2021 10:16:00 +0000 Received: from AM6PR04MB4966.eurprd04.prod.outlook.com ([fe80::b10a:ad0:a6f5:db9b]) by AM6PR04MB4966.eurprd04.prod.outlook.com ([fe80::b10a:ad0:a6f5:db9b%2]) with mapi id 15.20.4129.031; Tue, 18 May 2021 10:16:00 +0000 From: Dong Aisheng To: linux-arm-kernel@lists.infradead.org Cc: dongas86@gmail.com, Dong Aisheng Subject: [PATCH 4/4] arm64: head: fix code comments in set_cpu_boot_mode_flag Date: Tue, 18 May 2021 18:14:05 +0800 Message-Id: <20210518101405.1048860-5-aisheng.dong@nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210518101405.1048860-1-aisheng.dong@nxp.com> References: <20210518101405.1048860-1-aisheng.dong@nxp.com> X-Originating-IP: [119.31.174.66] X-ClientProxiedBy: SG2PR06CA0217.apcprd06.prod.outlook.com (2603:1096:4:68::25) To AM6PR04MB4966.eurprd04.prod.outlook.com (2603:10a6:20b:2::14) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (119.31.174.66) by SG2PR06CA0217.apcprd06.prod.outlook.com (2603:1096:4:68::25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4108.25 via Frontend Transport; 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Correct the code comments a bit. Signed-off-by: Dong Aisheng Acked-by: Mark Rutland Acked-by: Catalin Marinas --- arch/arm64/kernel/head.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S index d266b4c6287d..3b88000841d9 100644 --- a/arch/arm64/kernel/head.S +++ b/arch/arm64/kernel/head.S @@ -550,7 +550,7 @@ SYM_FUNC_START_LOCAL(set_cpu_boot_mode_flag) cmp w0, #BOOT_CPU_MODE_EL2 b.ne 1f add x1, x1, #4 -1: str w0, [x1] // This CPU has booted in EL1 +1: str w0, [x1] // Save CPU boot mode dmb sy dc ivac, x1 // Invalidate potentially stale cache line ret