Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> 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: https://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
|