From patchwork Wed Jan 24 09:05:17 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yury Norov X-Patchwork-Id: 10181937 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 08BD5602B7 for ; Wed, 24 Jan 2018 09:06:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EEE26286E6 for ; Wed, 24 Jan 2018 09:06:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E2FED286FF; Wed, 24 Jan 2018 09:06:07 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2DC7E286E6 for ; Wed, 24 Jan 2018 09:06:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932727AbeAXJGE (ORCPT ); Wed, 24 Jan 2018 04:06:04 -0500 Received: from mail-bn3nam01on0056.outbound.protection.outlook.com ([104.47.33.56]:6706 "EHLO NAM01-BN3-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932356AbeAXJFw (ORCPT ); Wed, 24 Jan 2018 04:05:52 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=CAVIUMNETWORKS.onmicrosoft.com; s=selector1-cavium-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=2crrhqgzOa+enelW9tMKNYvMFjnuqRF3JTbJ9cqinh8=; b=ZetiVHgAtVnAVBUxxgd/o7TgoT9U5Z9CYnHU7P8gTM8cHPppTQ+7I87AGvTNGEqxNyWWwsF1+sC5oaKmP0TG1dK7t6ZHcMILuOYX2YtJlTt9fYtUndqzpqMrbikfcArDLrFo6sHFATgsKgrNiCh+p7At4yw3rQl+niHZ8V/jRdI= Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=Yuri.Norov@cavium.com; Received: from localhost (42.106.18.247) by MWHPR07MB2910.namprd07.prod.outlook.com (10.169.231.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.20.444.14; Wed, 24 Jan 2018 09:05:47 +0000 From: Yury Norov To: linux-arm-kernel@lists.infradead.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org Cc: Yury Norov , Al Viro , Andrew Morton , Andrew Pinski , Arnd Bergmann , Catalin Marinas , "David S . Miller" , Geethasowjanya Akula , Greg Kroah-Hartman , Ingo Molnar , Kees Cook , Laura Abbott , Nicholas Piggin , Sunil Goutham , Will Deacon Subject: [PATCH 1/3] UAPI: Introduce 128-bit types and byteswap operations Date: Wed, 24 Jan 2018 12:05:17 +0300 Message-Id: <20180124090519.6680-2-ynorov@caviumnetworks.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180124090519.6680-1-ynorov@caviumnetworks.com> References: <20180124090519.6680-1-ynorov@caviumnetworks.com> MIME-Version: 1.0 X-Originating-IP: [42.106.18.247] X-ClientProxiedBy: DB3PR0202CA0006.eurprd02.prod.outlook.com (52.134.64.147) To MWHPR07MB2910.namprd07.prod.outlook.com (10.169.231.22) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 17fed08f-28d3-47a1-7bd6-08d56309a8f5 X-Microsoft-Antispam: UriScan:; BCL:0; PCL:0; RULEID:(7020095)(4652020)(5600026)(4604075)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603307)(7153060)(7193020); SRVR:MWHPR07MB2910; X-Microsoft-Exchange-Diagnostics: 1; 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This patch introduces corresponding types and __swab128() operation for be/le conversions. They are required to implement 128-bit access to the memory, in following patches. Signed-off-by: Yury Norov --- include/linux/byteorder/generic.h | 8 ++++++++ include/uapi/asm-generic/int-ll64.h | 8 ++++++++ include/uapi/linux/byteorder/big_endian.h | 4 ++++ include/uapi/linux/byteorder/little_endian.h | 8 ++++++++ include/uapi/linux/swab.h | 22 ++++++++++++++++++++++ include/uapi/linux/types.h | 4 ++++ 6 files changed, 54 insertions(+) diff --git a/include/linux/byteorder/generic.h b/include/linux/byteorder/generic.h index 451aaa0786ae..aa61662ee3dc 100644 --- a/include/linux/byteorder/generic.h +++ b/include/linux/byteorder/generic.h @@ -85,12 +85,20 @@ #define cpu_to_le64 __cpu_to_le64 #define le64_to_cpu __le64_to_cpu +#ifdef CONFIG_HAVE_128BIT_ACCESS +#define cpu_to_le128 __cpu_to_le128 +#define le128_to_cpu __le128_to_cpu +#endif #define cpu_to_le32 __cpu_to_le32 #define le32_to_cpu __le32_to_cpu #define cpu_to_le16 __cpu_to_le16 #define le16_to_cpu __le16_to_cpu #define cpu_to_be64 __cpu_to_be64 #define be64_to_cpu __be64_to_cpu +#ifdef CONFIG_HAVE_128BIT_ACCESS +#define cpu_to_be128 __cpu_to_be128 +#define be128_to_cpu __be128_to_cpu +#endif #define cpu_to_be32 __cpu_to_be32 #define be32_to_cpu __be32_to_cpu #define cpu_to_be16 __cpu_to_be16 diff --git a/include/uapi/asm-generic/int-ll64.h b/include/uapi/asm-generic/int-ll64.h index 1ed06964257c..4bc2241988a9 100644 --- a/include/uapi/asm-generic/int-ll64.h +++ b/include/uapi/asm-generic/int-ll64.h @@ -29,9 +29,17 @@ typedef unsigned int __u32; #ifdef __GNUC__ __extension__ typedef __signed__ long long __s64; __extension__ typedef unsigned long long __u64; +#ifdef CONFIG_HAVE_128BIT_ACCESS +__extension__ typedef __int128_t __s128; +__extension__ typedef __uint128_t __u128; +#endif #else typedef __signed__ long long __s64; typedef unsigned long long __u64; +#ifdef CONFIG_HAVE_128BIT_ACCESS +typedef __int128_t __s128; +typedef __uint128_t __u128; +#endif #endif #endif /* __ASSEMBLY__ */ diff --git a/include/uapi/linux/byteorder/big_endian.h b/include/uapi/linux/byteorder/big_endian.h index 2199adc6a6c2..28a69ec10dd2 100644 --- a/include/uapi/linux/byteorder/big_endian.h +++ b/include/uapi/linux/byteorder/big_endian.h @@ -30,6 +30,10 @@ #define __constant_be16_to_cpu(x) ((__force __u16)(__be16)(x)) #define __cpu_to_le64(x) ((__force __le64)__swab64((x))) #define __le64_to_cpu(x) __swab64((__force __u64)(__le64)(x)) +#ifdef CONFIG_HAVE_128BIT_ACCESS +#define __cpu_to_le128(x) ((__force __le128)__swab128((x))) +#define __le128_to_cpu(x) __swab128((__force __u128)(__le128)(x)) +#endif #define __cpu_to_le32(x) ((__force __le32)__swab32((x))) #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) #define __cpu_to_le16(x) ((__force __le16)__swab16((x))) diff --git a/include/uapi/linux/byteorder/little_endian.h b/include/uapi/linux/byteorder/little_endian.h index 601c904fd5cd..15365bd0fe29 100644 --- a/include/uapi/linux/byteorder/little_endian.h +++ b/include/uapi/linux/byteorder/little_endian.h @@ -18,6 +18,10 @@ #define __constant_ntohs(x) ___constant_swab16((__force __be16)(x)) #define __constant_cpu_to_le64(x) ((__force __le64)(__u64)(x)) #define __constant_le64_to_cpu(x) ((__force __u64)(__le64)(x)) +#ifdef CONFIG_HAVE_128BIT_ACCESS +#define __constant_cpu_to_le128(x) ((__force __le128)(__u128)(x)) +#define __constant_le128_to_cpu(x) ((__force __u128)(__le128)(x)) +#endif #define __constant_cpu_to_le32(x) ((__force __le32)(__u32)(x)) #define __constant_le32_to_cpu(x) ((__force __u32)(__le32)(x)) #define __constant_cpu_to_le16(x) ((__force __le16)(__u16)(x)) @@ -30,6 +34,10 @@ #define __constant_be16_to_cpu(x) ___constant_swab16((__force __u16)(__be16)(x)) #define __cpu_to_le64(x) ((__force __le64)(__u64)(x)) #define __le64_to_cpu(x) ((__force __u64)(__le64)(x)) +#ifdef CONFIG_HAVE_128BIT_ACCESS +#define __cpu_to_le128(x) ((__force __le128)(__u128)(x)) +#define __le128_to_cpu(x) ((__force __u128)(__le128)(x)) +#endif #define __cpu_to_le32(x) ((__force __le32)(__u32)(x)) #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) #define __cpu_to_le16(x) ((__force __le16)(__u16)(x)) diff --git a/include/uapi/linux/swab.h b/include/uapi/linux/swab.h index 23cd84868cc3..a7e97eb06a3e 100644 --- a/include/uapi/linux/swab.h +++ b/include/uapi/linux/swab.h @@ -75,6 +75,20 @@ static inline __attribute_const__ __u64 __fswab64(__u64 val) #endif } +#ifdef CONFIG_HAVE_128BIT_ACCESS +static inline __attribute_const__ __u128 __fswab128(__u128 val) +{ +#if defined(__arch_swab128) + return __arch_swab128(val); +#else + __u64 h = (__u64) (val >> 64); + __u64 l = (__u64) val; + + return (((__u128)__fswab64(l)) << 64) | (__u128)(__fswab64(h)); +#endif +} +#endif + static inline __attribute_const__ __u32 __fswahw32(__u32 val) { #ifdef __arch_swahw32 @@ -132,6 +146,14 @@ static inline __attribute_const__ __u32 __fswahb32(__u32 val) __fswab64(x)) #endif +#ifdef CONFIG_HAVE_128BIT_ACCESS +/** + * __swab128 - return a byteswapped 128-bit value + * @x: value to byteswap + */ +#define __swab128(x) __fswab128(x) +#endif + /** * __swahw32 - return a word-swapped 32-bit value * @x: value to wordswap diff --git a/include/uapi/linux/types.h b/include/uapi/linux/types.h index cd4f0b897a48..a4500baaccd6 100644 --- a/include/uapi/linux/types.h +++ b/include/uapi/linux/types.h @@ -32,6 +32,10 @@ typedef __u32 __bitwise __le32; typedef __u32 __bitwise __be32; typedef __u64 __bitwise __le64; typedef __u64 __bitwise __be64; +#ifdef CONFIG_HAVE_128BIT_ACCESS +typedef __u128 __bitwise __le128; +typedef __u128 __bitwise __be128; +#endif typedef __u16 __bitwise __sum16; typedef __u32 __bitwise __wsum;