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types: Introduce [us]128
Introduce [us]128 (when available). Unlike [us]64, ensure they are always naturally aligned. This also enables 128bit wide atomics (which require natural alignment) such as cmpxchg128(). Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Tested-by: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/20230531132323.385005581@infradead.org
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4 changed files with 9 additions and 4 deletions
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#define DECLARE_BITMAP(name,bits) \
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#define DECLARE_BITMAP(name,bits) \
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unsigned long name[BITS_TO_LONGS(bits)]
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unsigned long name[BITS_TO_LONGS(bits)]
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#ifdef __SIZEOF_INT128__
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typedef __s128 s128;
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typedef __u128 u128;
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#endif
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typedef u32 __kernel_dev_t;
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typedef u32 __kernel_dev_t;
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typedef __kernel_fd_set fd_set;
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typedef __kernel_fd_set fd_set;
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#include <linux/posix_types.h>
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#include <linux/posix_types.h>
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#ifdef __SIZEOF_INT128__
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typedef __signed__ __int128 __s128 __attribute__((aligned(16)));
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typedef unsigned __int128 __u128 __attribute__((aligned(16)));
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#endif
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/*
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/*
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* Below are truly Linux-specific types that should never collide with
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* Below are truly Linux-specific types that should never collide with
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#include <crypto/curve25519.h>
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#include <crypto/curve25519.h>
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#include <linux/string.h>
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#include <linux/string.h>
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typedef __uint128_t u128;
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static __always_inline u64 u64_eq_mask(u64 a, u64 b)
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static __always_inline u64 u64_eq_mask(u64 a, u64 b)
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{
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{
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u64 x = a ^ b;
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u64 x = a ^ b;
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#include <asm/unaligned.h>
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#include <asm/unaligned.h>
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#include <crypto/internal/poly1305.h>
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#include <crypto/internal/poly1305.h>
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typedef __uint128_t u128;
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void poly1305_core_setkey(struct poly1305_core_key *key,
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void poly1305_core_setkey(struct poly1305_core_key *key,
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const u8 raw_key[POLY1305_BLOCK_SIZE])
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const u8 raw_key[POLY1305_BLOCK_SIZE])
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{
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{
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