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| author | Ralf Baechle <ralf@linux-mips.org> | 2008-09-16 19:48:51 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2008-10-11 17:18:52 +0200 |
| commit | 384740dc49ea651ba350704d13ff6be9976e37fe (patch) | |
| tree | a6e80cad287ccae7a86d81bfa692fc96889c88ed /arch/mips/include/asm/dsp.h | |
| parent | MIPS: Alchemy: rename directory (diff) | |
| download | linux-384740dc49ea651ba350704d13ff6be9976e37fe.tar.xz linux-384740dc49ea651ba350704d13ff6be9976e37fe.zip | |
MIPS: Move headfiles to new location below arch/mips/include
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/dsp.h')
| -rw-r--r-- | arch/mips/include/asm/dsp.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/arch/mips/include/asm/dsp.h b/arch/mips/include/asm/dsp.h new file mode 100644 index 000000000000..e9bfc0813c72 --- /dev/null +++ b/arch/mips/include/asm/dsp.h @@ -0,0 +1,85 @@ +/* + * Copyright (C) 2005 Mips Technologies + * Author: Chris Dearman, chris@mips.com derived from fpu.h + * + * 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. + */ +#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 0x3ff + +#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 */ |