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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 Content-Type: text/plain 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;MWHPR07MB2910;3:fhuUP0qnnk2C342iyPCfd/2S40LEDgl8wiDhk2erRAvxJLl47GYxfwNmf4YxLXznoCfwjTQ0pVycLIENg0VY8Se8eMHn2agfCarNoZ1WwTBEslXHtr5EA4MkxGbxjpRTFQ0vCJQ1vZQZ+j6M2mztGvplh9yBTOpn0YFC9mLsLYlf3cR7oH9+hs4pmsRWc8EIrvofZuaFnlKuV2D6mN4RYlvw7U6fzg+aQjcC2S1MhgoUbeqoJIl7QHdFZiPJmZn+;25:XOYP9/+/vz93M5OtOm4vR9nqvoOpvYlh679YY7IpgMwaClzKiYvr7twxqCz8lMdyWHLFYXvLaqcuBbShtM/IC73R7Yc76JN7D/aO8KvcH/Ivags28Etubj/6xSGZD+mmMuSUxU1boCNDl6/lFY9x1p01XV78V4z/+6Ih2/5Lvk4AGYD5F4YNdlBCKgNicJrDVJj2yCwL6j6WPNyc2dNu5UIyy320DvhYVRVbd1X+BAr7PRf5HWVxXsb27hYk07xLKrdq6FqTS0W6abhVwTtMhwwXaRCpLa3LKBKXUUgzV4qygSni5JxXZacm9h9QmxTIjCGrzSZnEYm1o06bKaOQ9A==;31:5VtsF93AF1b4QSluHCttIPtZ2ofBL8eQrikoqi+OgCK9tCT6WH2fCtjuJG1VCsCsmDWnbQEjz6X/dbkybp18QbpnK5VVbXER8pARJ5MxbFfkTGmnyMOx1V+291xKqGgXdyGtZH+IclTUHOCj/o3ITHRa5Pwfm7fCFXkDGxJanShepA541hnMQYumlJQi2SGxSk4B7T+MzblPlBDBx6ReZfwO1MjrC+G8Y4snEExfiz4= X-MS-TrafficTypeDiagnostic: MWHPR07MB2910: X-Microsoft-Exchange-Diagnostics: 1;MWHPR07MB2910;20: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;4:FcV6hutYbapaoZV6dni5JipvTCdVXOh4qBdfVOatqAxBq6qWDukJaYbu8Ns1xUbI48VswEIYhYApFcgfnH2llGiz6KguP17Ck/HhOtGXDlek4PO4eGQv5EoHYrXoXRpoVCZXshfp0ejJGDPcIrCWasHWxzmqI28GPNV4w5To8f9JUjLss3SD2lQf2bzXgK7IDZv7W2L89h0KAu8Nlwqa+PCRZvtrSDZvbjvMF6bhek4gWBz7Z7YVATuJX4onoaNCZLUnZ8ItIgpEqVo1XXHPvA== X-Microsoft-Antispam-PRVS: X-Exchange-Antispam-Report-Test: UriScan:; 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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; -- 2.11.0