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6f52b16c5b
Many user space API headers are missing licensing information, which makes it hard for compliance tools to determine the correct license. By default are files without license information under the default license of the kernel, which is GPLV2. Marking them GPLV2 would exclude them from being included in non GPLV2 code, which is obviously not intended. The user space API headers fall under the syscall exception which is in the kernels COPYING file: NOTE! This copyright does *not* cover user programs that use kernel services by normal system calls - this is merely considered normal use of the kernel, and does *not* fall under the heading of "derived work". otherwise syscall usage would not be possible. Update the files which contain no license information with an SPDX license identifier. The chosen identifier is 'GPL-2.0 WITH Linux-syscall-note' which is the officially assigned identifier for the Linux syscall exception. SPDX license identifiers are a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. See the previous patch in this series for the methodology of how this patch was researched. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
119 lines
4.1 KiB
C
119 lines
4.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _UAPI__ALPHA_COMPILER_H
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#define _UAPI__ALPHA_COMPILER_H
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/*
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* Herein are macros we use when describing various patterns we want to GCC.
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* In all cases we can get better schedules out of the compiler if we hide
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* as little as possible inside inline assembly. However, we want to be
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* able to know what we'll get out before giving up inline assembly. Thus
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* these tests and macros.
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*/
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#if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3
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# define __kernel_insbl(val, shift) __builtin_alpha_insbl(val, shift)
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# define __kernel_inswl(val, shift) __builtin_alpha_inswl(val, shift)
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# define __kernel_insql(val, shift) __builtin_alpha_insql(val, shift)
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# define __kernel_inslh(val, shift) __builtin_alpha_inslh(val, shift)
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# define __kernel_extbl(val, shift) __builtin_alpha_extbl(val, shift)
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# define __kernel_extwl(val, shift) __builtin_alpha_extwl(val, shift)
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# define __kernel_cmpbge(a, b) __builtin_alpha_cmpbge(a, b)
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#else
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# define __kernel_insbl(val, shift) \
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({ unsigned long __kir; \
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__asm__("insbl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val)); \
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__kir; })
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# define __kernel_inswl(val, shift) \
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({ unsigned long __kir; \
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__asm__("inswl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val)); \
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__kir; })
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# define __kernel_insql(val, shift) \
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({ unsigned long __kir; \
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__asm__("insql %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val)); \
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__kir; })
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# define __kernel_inslh(val, shift) \
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({ unsigned long __kir; \
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__asm__("inslh %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val)); \
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__kir; })
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# define __kernel_extbl(val, shift) \
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({ unsigned long __kir; \
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__asm__("extbl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val)); \
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__kir; })
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# define __kernel_extwl(val, shift) \
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({ unsigned long __kir; \
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__asm__("extwl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val)); \
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__kir; })
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# define __kernel_cmpbge(a, b) \
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({ unsigned long __kir; \
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__asm__("cmpbge %r2,%1,%0" : "=r"(__kir) : "rI"(b), "rJ"(a)); \
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__kir; })
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#endif
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#ifdef __alpha_cix__
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# if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3
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# define __kernel_cttz(x) __builtin_ctzl(x)
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# define __kernel_ctlz(x) __builtin_clzl(x)
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# define __kernel_ctpop(x) __builtin_popcountl(x)
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# else
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# define __kernel_cttz(x) \
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({ unsigned long __kir; \
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__asm__("cttz %1,%0" : "=r"(__kir) : "r"(x)); \
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__kir; })
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# define __kernel_ctlz(x) \
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({ unsigned long __kir; \
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__asm__("ctlz %1,%0" : "=r"(__kir) : "r"(x)); \
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__kir; })
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# define __kernel_ctpop(x) \
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({ unsigned long __kir; \
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__asm__("ctpop %1,%0" : "=r"(__kir) : "r"(x)); \
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__kir; })
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# endif
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#else
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# define __kernel_cttz(x) \
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({ unsigned long __kir; \
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__asm__(".arch ev67; cttz %1,%0" : "=r"(__kir) : "r"(x)); \
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__kir; })
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# define __kernel_ctlz(x) \
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({ unsigned long __kir; \
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__asm__(".arch ev67; ctlz %1,%0" : "=r"(__kir) : "r"(x)); \
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__kir; })
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# define __kernel_ctpop(x) \
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({ unsigned long __kir; \
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__asm__(".arch ev67; ctpop %1,%0" : "=r"(__kir) : "r"(x)); \
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__kir; })
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#endif
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/*
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* Beginning with EGCS 1.1, GCC defines __alpha_bwx__ when the BWX
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* extension is enabled. Previous versions did not define anything
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* we could test during compilation -- too bad, so sad.
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*/
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#if defined(__alpha_bwx__)
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#define __kernel_ldbu(mem) (mem)
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#define __kernel_ldwu(mem) (mem)
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#define __kernel_stb(val,mem) ((mem) = (val))
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#define __kernel_stw(val,mem) ((mem) = (val))
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#else
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#define __kernel_ldbu(mem) \
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({ unsigned char __kir; \
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__asm__(".arch ev56; \
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ldbu %0,%1" : "=r"(__kir) : "m"(mem)); \
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__kir; })
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#define __kernel_ldwu(mem) \
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({ unsigned short __kir; \
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__asm__(".arch ev56; \
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ldwu %0,%1" : "=r"(__kir) : "m"(mem)); \
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__kir; })
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#define __kernel_stb(val,mem) \
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__asm__(".arch ev56; \
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stb %1,%0" : "=m"(mem) : "r"(val))
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#define __kernel_stw(val,mem) \
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__asm__(".arch ev56; \
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stw %1,%0" : "=m"(mem) : "r"(val))
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#endif
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#endif /* _UAPI__ALPHA_COMPILER_H */
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