1 /* SPDX-License-Identifier: GPL-2.0-only */ 1 2 /* Copyright (C) 2024 Intel Corporation */ 3 4 #ifndef __LIBETH_CACHE_H 5 #define __LIBETH_CACHE_H 6 7 #include <linux/cache.h> 8 9 /** 10 * libeth_cacheline_group_assert - make sure c 11 * @type: type of the structure containing the 12 * @grp: group name inside the struct 13 * @sz: expected group size 14 */ 15 #if defined(CONFIG_64BIT) && SMP_CACHE_BYTES = 16 #define libeth_cacheline_group_assert(type, gr 17 static_assert(offsetof(type, __cacheli 18 offsetofend(type, __cach 19 (sz)) 20 #define __libeth_cacheline_struct_assert(type, 21 static_assert(sizeof(type) == (sz)) 22 #else /* !CONFIG_64BIT || SMP_CACHE_BYTES != 6 23 #define libeth_cacheline_group_assert(type, gr 24 static_assert(offsetof(type, __cacheli 25 offsetofend(type, __cach 26 (sz)) 27 #define __libeth_cacheline_struct_assert(type, 28 static_assert(sizeof(type) <= (sz)) 29 #endif /* !CONFIG_64BIT || SMP_CACHE_BYTES != 30 31 #define __libeth_cls1(sz1) SMP_CACHE_ALIG 32 #define __libeth_cls2(sz1, sz2) (SMP_CACHE_ALI 33 #define __libeth_cls3(sz1, sz2, sz3) 34 (SMP_CACHE_ALIGN(sz1) + SMP_CACHE_ALIG 35 #define __libeth_cls(...) 36 CONCATENATE(__libeth_cls, COUNT_ARGS(_ 37 38 /** 39 * libeth_cacheline_struct_assert - make sure 40 * @type: type of the struct 41 * @...: from 1 to 3 CL group sizes (read-most 42 * 43 * When a struct contains several CL groups, i 44 * on different architectures. The macro inste 45 * groups the structure contains and generates 46 */ 47 #define libeth_cacheline_struct_assert(type, . 48 __libeth_cacheline_struct_assert(type, 49 static_assert(__alignof(type) >= SMP_C 50 51 /** 52 * libeth_cacheline_set_assert - make sure CL- 53 * @type: type of the struct 54 * @ro: expected size of the read-mostly group 55 * @rw: expected size of the read-write group 56 * @c: expected size of the cold group 57 * 58 * Check that each group size is expected and 59 */ 60 #define libeth_cacheline_set_assert(type, ro, 61 libeth_cacheline_group_assert(type, re 62 libeth_cacheline_group_assert(type, re 63 libeth_cacheline_group_assert(type, co 64 libeth_cacheline_struct_assert(type, r 65 66 #endif /* __LIBETH_CACHE_H */ 67
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