From patchwork Mon Jun 12 11:01:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tiezhu Yang X-Patchwork-Id: 13276357 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 785CBC83005 for ; Mon, 12 Jun 2023 11:02:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=PlndbOwCXaElGMEzLkbJXJVOBLO6Ms80wSFniuVZM0c=; b=XP5rd0XhtPJbW6 Lu0xloEzyzpugYxF1Eh3K3K0UpcyuYFPPM0nj1UUp+uwfoXrv1sYfKlWR33fzDBbwbG2KLkFuwI9b Ge+XqElZCJbckbKf8H51EgR6cgCf4cgm37/K8rufkSr4gDZ7mJq5WUOQWQcRLcoYtuRwsS23JjACE 9yGEvhxeshnWv6IOw/SRVjz9JLB409RYdyKz2rgw/Zx0WW4Hm61lLSLgeH7UrHfFMFxga7DBemVcw rhpaoX76l2XjAiXSlhFFoXE5zWR2+AoGMZnq5kx9AsMCSzPN15jZeN0zkka1NAHGK1tAZMmz8krJq H20yS47UND1UbYszpVJQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q8fJC-003hQ5-1z; Mon, 12 Jun 2023 11:02:02 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q8fJA-003hP1-3A; Mon, 12 Jun 2023 11:02:01 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=References:In-Reply-To:Message-Id:Date :Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description; bh=75Zu/u6SAZNWQm0yOL9I7E1oX/vnjn3lpBR4UsGEpTI=; b=R8PMK9+/BT+BFPhoLFMrdPcfT6 fqnZoIArcsu2kYL3DlKmtAi9NpMuLcUyTTPfYwRg71WKJS7q6VfmtauXGVDY7XJR8lHmF89sjq7Wn pHAB/iNCfxGjTg2xW7KuNqjxVZRs/WNNfZ3sTAUkN3FewUWQ5mI/3Jckvm79ZrbtxNUbTrMe9z5tq L0Zrp9AYj1QxMFevEc3g6ckqV4tGGFDTIv6uoFwsQ0YAV+FAI2g7+Fw4Brs3QpjrV5Sq0yuh1OSoj Mn+QbOrz4YGuavNXqVw8w8khXzR4PoWo2v6MjzDZuzLxMgo6Vh/PyFANseqIEM44XEfgpABrFDcx6 9Udz75Tg==; Received: from mail.loongson.cn ([114.242.206.163]) by desiato.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q8fJ6-008mgS-09; Mon, 12 Jun 2023 11:01:59 +0000 Received: from loongson.cn (unknown [113.200.148.30]) by gateway (Coremail) with SMTP id _____8BxL_AV+4ZkBLYDAA--.8149S3; Mon, 12 Jun 2023 19:01:41 +0800 (CST) Received: from linux.localdomain (unknown [113.200.148.30]) by localhost.localdomain (Coremail) with SMTP id AQAAf8AxfcoQ+4Zk19QVAA--.54161S3; Mon, 12 Jun 2023 19:01:40 +0800 (CST) From: Tiezhu Yang To: Arnd Bergmann Cc: linux-arm-kernel@lists.infradead.org, linux-riscv@lists.infradead.org, loongarch@lists.linux.dev, linux-arch@vger.kernel.org, bpf@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, loongson-kernel@lists.loongnix.cn Subject: [PATCH v1 1/2] asm-generic: Unify uapi bitsperlong.h for arm64, riscv and loongarch Date: Mon, 12 Jun 2023 19:01:33 +0800 Message-Id: <1686567694-20099-2-git-send-email-yangtiezhu@loongson.cn> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1686567694-20099-1-git-send-email-yangtiezhu@loongson.cn> References: <1686567694-20099-1-git-send-email-yangtiezhu@loongson.cn> X-CM-TRANSID: AQAAf8AxfcoQ+4Zk19QVAA--.54161S3 X-CM-SenderInfo: p1dqw3xlh2x3gn0dqz5rrqw2lrqou0/ X-Coremail-Antispam: 1Uk129KBj93XoW3tF4DXFy8ZrW8Xr17WFyDArc_yoWDCrWUpF 95Crn7GF40krWak3yrJF1Igry5A393GF4UtFW2gry0vrWxJF18Gr4v9FsxCa4xJayqqryr uF9agry5Gan8t3cCm3ZEXasCq-sJn29KB7ZKAUJUUUU8529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUkFb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r1Y6r17M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_JFI_Gr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Gr0_Cr1l84ACjcxK6I8E87Iv67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVCY1x0267AK xVWxJr0_GcWle2I262IYc4CY6c8Ij28IcVAaY2xG8wAqjxCEc2xF0cIa020Ex4CE44I27w Aqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_JF0_Jw1lYx0Ex4A2jsIE 14v26r4j6F4UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwCF04k20xvY0x 0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E 7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GFylIxkGc2Ij64vIr41lIxAIcV C0I7IYx2IY67AKxVWUCVW8JwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1lIxAIcVCF 04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r4j6F4UMIIF0xvEx4A2jsIEc7 CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x07jOb18UUUUU= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230612_120156_944995_BE6B3EFF X-CRM114-Status: GOOD ( 15.41 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Now we specify the minimal version of GCC as 5.1 and Clang/LLVM as 11.0.0 in Documentation/process/changes.rst, __CHAR_BIT__ and __SIZEOF_LONG__ are usable, it is probably fine to unify the definition of __BITS_PER_LONG as (__CHAR_BIT__ * __SIZEOF_LONG__) in asm-generic uapi bitsperlong.h. In order to keep safe and avoid regression, only unify uapi bitsperlong.h for arm64, riscv and loongarch which are added since the linux-3.x days. Suggested-by: Xi Ruoyao Link: https://lore.kernel.org/all/d3e255e4746de44c9903c4433616d44ffcf18d1b.camel@xry111.site/ Suggested-by: Arnd Bergmann Link: https://lore.kernel.org/linux-arch/a3a4f48a-07d4-4ed9-bc53-5d383428bdd2@app.fastmail.com/ Signed-off-by: Tiezhu Yang --- arch/arm64/include/uapi/asm/bitsperlong.h | 24 ---------------------- arch/loongarch/include/uapi/asm/bitsperlong.h | 9 -------- arch/riscv/include/uapi/asm/bitsperlong.h | 14 ------------- include/uapi/asm-generic/bitsperlong.h | 10 +++++++++ tools/arch/arm64/include/uapi/asm/bitsperlong.h | 24 ---------------------- .../arch/loongarch/include/uapi/asm/bitsperlong.h | 9 -------- tools/arch/riscv/include/uapi/asm/bitsperlong.h | 14 ------------- tools/include/uapi/asm-generic/bitsperlong.h | 11 ++++++++++ tools/include/uapi/asm/bitsperlong.h | 6 ------ 9 files changed, 21 insertions(+), 100 deletions(-) delete mode 100644 arch/arm64/include/uapi/asm/bitsperlong.h delete mode 100644 arch/loongarch/include/uapi/asm/bitsperlong.h delete mode 100644 arch/riscv/include/uapi/asm/bitsperlong.h delete mode 100644 tools/arch/arm64/include/uapi/asm/bitsperlong.h delete mode 100644 tools/arch/loongarch/include/uapi/asm/bitsperlong.h delete mode 100644 tools/arch/riscv/include/uapi/asm/bitsperlong.h diff --git a/arch/arm64/include/uapi/asm/bitsperlong.h b/arch/arm64/include/uapi/asm/bitsperlong.h deleted file mode 100644 index 485d60be..0000000 --- a/arch/arm64/include/uapi/asm/bitsperlong.h +++ /dev/null @@ -1,24 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -/* - * Copyright (C) 2012 ARM Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ -#ifndef __ASM_BITSPERLONG_H -#define __ASM_BITSPERLONG_H - -#define __BITS_PER_LONG 64 - -#include - -#endif /* __ASM_BITSPERLONG_H */ diff --git a/arch/loongarch/include/uapi/asm/bitsperlong.h b/arch/loongarch/include/uapi/asm/bitsperlong.h deleted file mode 100644 index 00b4ba1..0000000 --- a/arch/loongarch/include/uapi/asm/bitsperlong.h +++ /dev/null @@ -1,9 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef __ASM_LOONGARCH_BITSPERLONG_H -#define __ASM_LOONGARCH_BITSPERLONG_H - -#define __BITS_PER_LONG (__SIZEOF_LONG__ * 8) - -#include - -#endif /* __ASM_LOONGARCH_BITSPERLONG_H */ diff --git a/arch/riscv/include/uapi/asm/bitsperlong.h b/arch/riscv/include/uapi/asm/bitsperlong.h deleted file mode 100644 index 7d0b32e..0000000 --- a/arch/riscv/include/uapi/asm/bitsperlong.h +++ /dev/null @@ -1,14 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */ -/* - * Copyright (C) 2012 ARM Ltd. - * Copyright (C) 2015 Regents of the University of California - */ - -#ifndef _UAPI_ASM_RISCV_BITSPERLONG_H -#define _UAPI_ASM_RISCV_BITSPERLONG_H - -#define __BITS_PER_LONG (__SIZEOF_POINTER__ * 8) - -#include - -#endif /* _UAPI_ASM_RISCV_BITSPERLONG_H */ diff --git a/include/uapi/asm-generic/bitsperlong.h b/include/uapi/asm-generic/bitsperlong.h index 693d9a4..fb104f9 100644 --- a/include/uapi/asm-generic/bitsperlong.h +++ b/include/uapi/asm-generic/bitsperlong.h @@ -3,6 +3,15 @@ #define _UAPI__ASM_GENERIC_BITS_PER_LONG /* + * In order to keep safe and avoid regression, only unify uapi + * bitsperlong.h for arm64, riscv and loongarch which are added + * since the linux-3.x days. See the following link for more info: + * https://lore.kernel.org/linux-arch/b9624545-2c80-49a1-ac3c-39264a591f7b@app.fastmail.com/ + */ +#if defined(__aarch64__) || defined(__riscv) || defined(__loongarch__) +#define __BITS_PER_LONG (__CHAR_BIT__ * __SIZEOF_LONG__) +#else +/* * There seems to be no way of detecting this automatically from user * space, so 64 bit architectures should override this in their * bitsperlong.h. In particular, an architecture that supports @@ -12,5 +21,6 @@ #ifndef __BITS_PER_LONG #define __BITS_PER_LONG 32 #endif +#endif #endif /* _UAPI__ASM_GENERIC_BITS_PER_LONG */ diff --git a/tools/arch/arm64/include/uapi/asm/bitsperlong.h b/tools/arch/arm64/include/uapi/asm/bitsperlong.h deleted file mode 100644 index 485d60be..0000000 --- a/tools/arch/arm64/include/uapi/asm/bitsperlong.h +++ /dev/null @@ -1,24 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -/* - * Copyright (C) 2012 ARM Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ -#ifndef __ASM_BITSPERLONG_H -#define __ASM_BITSPERLONG_H - -#define __BITS_PER_LONG 64 - -#include - -#endif /* __ASM_BITSPERLONG_H */ diff --git a/tools/arch/loongarch/include/uapi/asm/bitsperlong.h b/tools/arch/loongarch/include/uapi/asm/bitsperlong.h deleted file mode 100644 index 00b4ba1..0000000 --- a/tools/arch/loongarch/include/uapi/asm/bitsperlong.h +++ /dev/null @@ -1,9 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef __ASM_LOONGARCH_BITSPERLONG_H -#define __ASM_LOONGARCH_BITSPERLONG_H - -#define __BITS_PER_LONG (__SIZEOF_LONG__ * 8) - -#include - -#endif /* __ASM_LOONGARCH_BITSPERLONG_H */ diff --git a/tools/arch/riscv/include/uapi/asm/bitsperlong.h b/tools/arch/riscv/include/uapi/asm/bitsperlong.h deleted file mode 100644 index 0b9b58b..0000000 --- a/tools/arch/riscv/include/uapi/asm/bitsperlong.h +++ /dev/null @@ -1,14 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright (C) 2012 ARM Ltd. - * Copyright (C) 2015 Regents of the University of California - */ - -#ifndef _UAPI_ASM_RISCV_BITSPERLONG_H -#define _UAPI_ASM_RISCV_BITSPERLONG_H - -#define __BITS_PER_LONG (__SIZEOF_POINTER__ * 8) - -#include - -#endif /* _UAPI_ASM_RISCV_BITSPERLONG_H */ diff --git a/tools/include/uapi/asm-generic/bitsperlong.h b/tools/include/uapi/asm-generic/bitsperlong.h index 23e6c41..fb104f9 100644 --- a/tools/include/uapi/asm-generic/bitsperlong.h +++ b/tools/include/uapi/asm-generic/bitsperlong.h @@ -1,7 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _UAPI__ASM_GENERIC_BITS_PER_LONG #define _UAPI__ASM_GENERIC_BITS_PER_LONG /* + * In order to keep safe and avoid regression, only unify uapi + * bitsperlong.h for arm64, riscv and loongarch which are added + * since the linux-3.x days. See the following link for more info: + * https://lore.kernel.org/linux-arch/b9624545-2c80-49a1-ac3c-39264a591f7b@app.fastmail.com/ + */ +#if defined(__aarch64__) || defined(__riscv) || defined(__loongarch__) +#define __BITS_PER_LONG (__CHAR_BIT__ * __SIZEOF_LONG__) +#else +/* * There seems to be no way of detecting this automatically from user * space, so 64 bit architectures should override this in their * bitsperlong.h. In particular, an architecture that supports @@ -11,5 +21,6 @@ #ifndef __BITS_PER_LONG #define __BITS_PER_LONG 32 #endif +#endif #endif /* _UAPI__ASM_GENERIC_BITS_PER_LONG */ diff --git a/tools/include/uapi/asm/bitsperlong.h b/tools/include/uapi/asm/bitsperlong.h index da52065..c65267a 100644 --- a/tools/include/uapi/asm/bitsperlong.h +++ b/tools/include/uapi/asm/bitsperlong.h @@ -1,8 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 */ #if defined(__i386__) || defined(__x86_64__) #include "../../../arch/x86/include/uapi/asm/bitsperlong.h" -#elif defined(__aarch64__) -#include "../../../arch/arm64/include/uapi/asm/bitsperlong.h" #elif defined(__powerpc__) #include "../../../arch/powerpc/include/uapi/asm/bitsperlong.h" #elif defined(__s390__) @@ -13,12 +11,8 @@ #include "../../../arch/mips/include/uapi/asm/bitsperlong.h" #elif defined(__ia64__) #include "../../../arch/ia64/include/uapi/asm/bitsperlong.h" -#elif defined(__riscv) -#include "../../../arch/riscv/include/uapi/asm/bitsperlong.h" #elif defined(__alpha__) #include "../../../arch/alpha/include/uapi/asm/bitsperlong.h" -#elif defined(__loongarch__) -#include "../../../arch/loongarch/include/uapi/asm/bitsperlong.h" #else #include #endif