mirror of
https://github.com/torvalds/linux.git
synced 2024-12-23 03:11:46 +00:00
d2912cb15b
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Copyright (C) 2016-2017 Synopsys, Inc. (www.synopsys.com)
|
|
*/
|
|
|
|
#ifndef __SOC_ARC_AUX_H__
|
|
#define __SOC_ARC_AUX_H__
|
|
|
|
#ifdef CONFIG_ARC
|
|
|
|
#define read_aux_reg(r) __builtin_arc_lr(r)
|
|
|
|
/* gcc builtin sr needs reg param to be long immediate */
|
|
#define write_aux_reg(r, v) __builtin_arc_sr((unsigned int)(v), r)
|
|
|
|
#else /* !CONFIG_ARC */
|
|
|
|
static inline int read_aux_reg(u32 r)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* function helps elide unused variable warning
|
|
* see: http://lists.infradead.org/pipermail/linux-snps-arc/2016-November/001748.html
|
|
*/
|
|
static inline void write_aux_reg(u32 r, u32 v)
|
|
{
|
|
;
|
|
}
|
|
|
|
#endif
|
|
|
|
#define READ_BCR(reg, into) \
|
|
{ \
|
|
unsigned int tmp; \
|
|
tmp = read_aux_reg(reg); \
|
|
if (sizeof(tmp) == sizeof(into)) { \
|
|
into = *((typeof(into) *)&tmp); \
|
|
} else { \
|
|
extern void bogus_undefined(void); \
|
|
bogus_undefined(); \
|
|
} \
|
|
}
|
|
|
|
#define WRITE_AUX(reg, into) \
|
|
{ \
|
|
unsigned int tmp; \
|
|
if (sizeof(tmp) == sizeof(into)) { \
|
|
tmp = (*(unsigned int *)&(into)); \
|
|
write_aux_reg(reg, tmp); \
|
|
} else { \
|
|
extern void bogus_undefined(void); \
|
|
bogus_undefined(); \
|
|
} \
|
|
}
|
|
|
|
|
|
#endif
|