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- /*
- * SPDX-License-Identifier: BSD-2-Clause
- *
- * Copyright (c) 2019 Western Digital Corporation or its affiliates.
- *
- * Authors:
- * Anup Patel <anup.patel@wdc.com>
- */
- #ifndef __SBI_CONST_H__
- #define __SBI_CONST_H__
- /*
- * Some constant macros are used in both assembler and
- * C code. Therefore we cannot annotate them always with
- * 'UL' and other type specifiers unilaterally. We
- * use the following macros to deal with this.
- *
- * Similarly, _AT() will cast an expression with a type in C, but
- * leave it unchanged in asm.
- */
- /* clang-format off */
- #ifdef __ASSEMBLER__
- #define _AC(X,Y) X
- #define _AT(T,X) X
- #else
- #define __AC(X,Y) (X##Y)
- #define _AC(X,Y) __AC(X,Y)
- #define _AT(T,X) ((T)(X))
- #endif
- #define _UL(x) (_AC(x, UL))
- #define _ULL(x) (_AC(x, ULL))
- #define _BITUL(x) (_UL(1) << (x))
- #define _BITULL(x) (_ULL(1) << (x))
- #define UL(x) (_UL(x))
- #define ULL(x) (_ULL(x))
- #define __STR(s) #s
- #define STRINGIFY(s) __STR(s)
- /* clang-format on */
- #endif
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