/* * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 1996, 1998 by Ralf Baechle * * Multi-arch abstraction and asm macros for easier reading: * Copyright (C) 1996 David S. Miller (davem@davemloft.net) * * Further modifications to make this work: * Copyright (c) 1998 Harald Koerfgen
*/
#include <linux/export.h>
#include <asm/asm.h>
#include <asm/asmmacro.h>
#include <asm/errno.h>
#include <asm/fpregdef.h>
#include <asm/mipsregs.h>
#include <asm/asm-offsets.h>
#include <asm/regdef.h>
/* * Save a thread's fp context.
*/
LEAF(_save_fp)
EXPORT_SYMBOL(_save_fp)
fpu_save_single a0, t1 # clobbers t1
jr ra
END(_save_fp)
/* * Restore a thread's fp context.
*/
LEAF(_restore_fp)
fpu_restore_single a0, t1 # clobbers t1
jr ra
END(_restore_fp)
.set noreorder
/** * _save_fp_context() - save FP context from the FPU * @a0 - pointer to fpregs field of sigcontext * @a1 - pointer to fpc_csr field of sigcontext * * Save FP context, including the 32 FP data registers and the FP * control & status register, from the FPU to signal context.
*/
LEAF(_save_fp_context)
.set push
.set hardfloat
li v0, 0 # assume success
cfc1 t1, fcr31
EX2(s.d $f0, 0(a0))
EX2(s.d $f2, 16(a0))
EX2(s.d $f4, 32(a0))
EX2(s.d $f6, 48(a0))
EX2(s.d $f8, 64(a0))
EX2(s.d $f10, 80(a0))
EX2(s.d $f12, 96(a0))
EX2(s.d $f14, 112(a0))
EX2(s.d $f16, 128(a0))
EX2(s.d $f18, 144(a0))
EX2(s.d $f20, 160(a0))
EX2(s.d $f22, 176(a0))
EX2(s.d $f24, 192(a0))
EX2(s.d $f26, 208(a0))
EX2(s.d $f28, 224(a0))
EX2(s.d $f30, 240(a0))
jr ra
EX(sw t1, (a1))
.set pop
END(_save_fp_context)
/** * _restore_fp_context() - restore FP context to the FPU * @a0 - pointer to fpregs field of sigcontext * @a1 - pointer to fpc_csr field of sigcontext * * Restore FP context, including the 32 FP data registers and the FP * control & status register, from signal context to the FPU.
*/
LEAF(_restore_fp_context)
.set push
.set hardfloat
li v0, 0 # assume success
EX(lw t0, (a1))
EX2(l.d $f0, 0(a0))
EX2(l.d $f2, 16(a0))
EX2(l.d $f4, 32(a0))
EX2(l.d $f6, 48(a0))
EX2(l.d $f8, 64(a0))
EX2(l.d $f10, 80(a0))
EX2(l.d $f12, 96(a0))
EX2(l.d $f14, 112(a0))
EX2(l.d $f16, 128(a0))
EX2(l.d $f18, 144(a0))
EX2(l.d $f20, 160(a0))
EX2(l.d $f22, 176(a0))
EX2(l.d $f24, 192(a0))
EX2(l.d $f26, 208(a0))
EX2(l.d $f28, 224(a0))
EX2(l.d $f30, 240(a0))
jr ra
ctc1 t0, fcr31
.set pop
END(_restore_fp_context)
.set reorder
.type fault, @function
.ent fault
fault: li v0, -EFAULT
jr ra
.end fault
Messung V0.5
¤ Dauer der Verarbeitung: 0.8 Sekunden
(vorverarbeitet)
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