import _AC and UL macros from linux kernel
This macros are used in exported from linux TI DaVinci code. Also this macros are used in MIPS cache support code. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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@ -3,6 +3,13 @@
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#include <memory.h>
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#include <linux/const.h>
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/*
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* Allow for constants defined here to be used from assembly code
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* by prepending the UL suffix only with actual C code compilation.
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*/
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#define UL(x) _AC(x, UL)
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static inline void arm_add_mem_device(const char* name, resource_size_t start,
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resource_size_t size)
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{
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/* const.h: Macros for dealing with constants. */
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#ifndef _LINUX_CONST_H
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#define _LINUX_CONST_H
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/* Some constant macros are used in both assembler and
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* C code. Therefore we cannot annotate them always with
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* 'UL' and other type specifiers unilaterally. We
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* use the following macros to deal with this.
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*
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* Similarly, _AT() will cast an expression with a type in C, but
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* leave it unchanged in asm.
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*/
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#ifdef __ASSEMBLY__
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#define _AC(X,Y) X
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#define _AT(T,X) X
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#else
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#define __AC(X,Y) (X##Y)
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#define _AC(X,Y) __AC(X,Y)
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#define _AT(T,X) ((T)(X))
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#endif
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#define _BITUL(x) (_AC(1,UL) << (x))
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#define _BITULL(x) (_AC(1,ULL) << (x))
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#endif /* !(_LINUX_CONST_H) */
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