u-boot/arch/mips/include/asm/const.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * const.h: Macros for dealing with constants.
 */

#ifndef _LINUX_CONST_H
#define _LINUX_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.
 */

#ifdef __ASSEMBLY__
#define _AT(T,X)	X
#else
#define _AT(T,X)	((T)(X))
#endif

#define _BITUL(x)	(_AC(1,UL) << (x))
#define _BITULL(x)	(_AC(1,ULL) << (x))

#endif /* !(_LINUX_CONST_H) */
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> 2018-05-06 21:58:06 +00:00			`/* SPDX-License-Identifier: GPL-2.0 */`
MIPS: fix SPDX license identifier in remaining arch header files Add a SPDX license identifier to MIPS header files where it is still missing. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> 2016-01-12 20:48:27 +00:00			`/*`
			`* const.h: Macros for dealing with constants.`
			`*/`
MIPS: sync I/O related header files with linux-4.4 Mainly sync asm/io.h to get a working ioremap() implementation as well as the full set of I/O accessors. Pull in additional header files to make this work. Furthermore port over the directory 'arch/mips/include/asm/mach-generic/' with contains default definitions for I/O and memory spaces and default implementations for mapping those spaces. All files in that directory can be overwritten by a SoC/machine. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> 2016-01-12 20:48:25 +00:00
			`#ifndef _LINUX_CONST_H`
			`#define _LINUX_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.`
			`*/`

			`#ifdef __ASSEMBLY__`
			`#define _AT(T,X) X`
			`#else`
			`#define _AT(T,X) ((T)(X))`
			`#endif`

			`#define _BITUL(x) (_AC(1,UL) << (x))`
			`#define _BITULL(x) (_AC(1,ULL) << (x))`

			`#endif /* !(_LINUX_CONST_H) */`