mirror of
https://github.com/torvalds/linux.git
synced 2024-11-23 12:42:02 +00:00
2874c5fd28
Based on 1 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 as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
82 lines
1.7 KiB
C
82 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* Copyright (C) 2005 Mips Technologies
|
|
* Author: Chris Dearman, chris@mips.com derived from fpu.h
|
|
*/
|
|
#ifndef _ASM_DSP_H
|
|
#define _ASM_DSP_H
|
|
|
|
#include <asm/cpu.h>
|
|
#include <asm/cpu-features.h>
|
|
#include <asm/hazards.h>
|
|
#include <asm/mipsregs.h>
|
|
|
|
#define DSP_DEFAULT 0x00000000
|
|
#define DSP_MASK 0x3f
|
|
|
|
#define __enable_dsp_hazard() \
|
|
do { \
|
|
asm("_ehb"); \
|
|
} while (0)
|
|
|
|
static inline void __init_dsp(void)
|
|
{
|
|
mthi1(0);
|
|
mtlo1(0);
|
|
mthi2(0);
|
|
mtlo2(0);
|
|
mthi3(0);
|
|
mtlo3(0);
|
|
wrdsp(DSP_DEFAULT, DSP_MASK);
|
|
}
|
|
|
|
static inline void init_dsp(void)
|
|
{
|
|
if (cpu_has_dsp)
|
|
__init_dsp();
|
|
}
|
|
|
|
#define __save_dsp(tsk) \
|
|
do { \
|
|
tsk->thread.dsp.dspr[0] = mfhi1(); \
|
|
tsk->thread.dsp.dspr[1] = mflo1(); \
|
|
tsk->thread.dsp.dspr[2] = mfhi2(); \
|
|
tsk->thread.dsp.dspr[3] = mflo2(); \
|
|
tsk->thread.dsp.dspr[4] = mfhi3(); \
|
|
tsk->thread.dsp.dspr[5] = mflo3(); \
|
|
tsk->thread.dsp.dspcontrol = rddsp(DSP_MASK); \
|
|
} while (0)
|
|
|
|
#define save_dsp(tsk) \
|
|
do { \
|
|
if (cpu_has_dsp) \
|
|
__save_dsp(tsk); \
|
|
} while (0)
|
|
|
|
#define __restore_dsp(tsk) \
|
|
do { \
|
|
mthi1(tsk->thread.dsp.dspr[0]); \
|
|
mtlo1(tsk->thread.dsp.dspr[1]); \
|
|
mthi2(tsk->thread.dsp.dspr[2]); \
|
|
mtlo2(tsk->thread.dsp.dspr[3]); \
|
|
mthi3(tsk->thread.dsp.dspr[4]); \
|
|
mtlo3(tsk->thread.dsp.dspr[5]); \
|
|
wrdsp(tsk->thread.dsp.dspcontrol, DSP_MASK); \
|
|
} while (0)
|
|
|
|
#define restore_dsp(tsk) \
|
|
do { \
|
|
if (cpu_has_dsp) \
|
|
__restore_dsp(tsk); \
|
|
} while (0)
|
|
|
|
#define __get_dsp_regs(tsk) \
|
|
({ \
|
|
if (tsk == current) \
|
|
__save_dsp(current); \
|
|
\
|
|
tsk->thread.dsp.dspr; \
|
|
})
|
|
|
|
#endif /* _ASM_DSP_H */
|