// SPDX-License-Identifier: GPL-2.0-or-later
#include <linux/regset.h>
#include <asm /switch_to.h>
#include "ptrace-decl.h"
/*
* Regardless of transactions , ' fp_state ' holds the current running
* value of all FPR registers and ' ckfp_state ' holds the last checkpointed
* value of all FPR registers for the current transaction .
*
* Userspace interface buffer layout :
*
* struct data {
* u64 fpr [ 32 ] ;
* u64 fpscr ;
* } ;
*/
int fpr_get(struct task_struct *target, const struct user_regset *regset,
struct membuf to)
{
u64 buf[33 ];
int i;
flush_fp_to_thread(target);
/* copy to local buffer then write that out */
for (i = 0 ; i < 32 ; i++)
buf[i] = target->thread.TS_FPR(i);
buf[32 ] = target->thread.fp_state.fpscr;
return membuf_write(&to, buf, 33 * sizeof (u64));
}
/*
* Regardless of transactions , ' fp_state ' holds the current running
* value of all FPR registers and ' ckfp_state ' holds the last checkpointed
* value of all FPR registers for the current transaction .
*
* Userspace interface buffer layout :
*
* struct data {
* u64 fpr [ 32 ] ;
* u64 fpscr ;
* } ;
*
*/
int fpr_set(struct task_struct *target, const struct user_regset *regset,
unsigned int pos, unsigned int count,
const void *kbuf, const void __user *ubuf)
{
u64 buf[33 ];
int i;
flush_fp_to_thread(target);
for (i = 0 ; i < 32 ; i++)
buf[i] = target->thread.TS_FPR(i);
buf[32 ] = target->thread.fp_state.fpscr;
/* copy to local buffer then write that out */
i = user_regset_copyin(&pos, &count, &kbuf, &ubuf, buf, 0 , -1 );
if (i)
return i;
for (i = 0 ; i < 32 ; i++)
target->thread.TS_FPR(i) = buf[i];
target->thread.fp_state.fpscr = buf[32 ];
return 0 ;
}
/*
* Currently to set and get all the vsx state , you need to call
* the fp and VMX calls as well . This only get / sets the lower 32
* 128 bit VSX registers .
*/
int vsr_active(struct task_struct *target, const struct user_regset *regset)
{
flush_vsx_to_thread(target);
return target->thread.used_vsr ? regset->n : 0 ;
}
/*
* Regardless of transactions , ' fp_state ' holds the current running
* value of all FPR registers and ' ckfp_state ' holds the last
* checkpointed value of all FPR registers for the current
* transaction .
*
* Userspace interface buffer layout :
*
* struct data {
* u64 vsx [ 32 ] ;
* } ;
*/
int vsr_get(struct task_struct *target, const struct user_regset *regset,
struct membuf to)
{
u64 buf[32 ];
int i;
flush_tmregs_to_thread(target);
flush_fp_to_thread(target);
flush_altivec_to_thread(target);
flush_vsx_to_thread(target);
for (i = 0 ; i < 32 ; i++)
buf[i] = target->thread.fp_state.fpr[i][TS_VSRLOWOFFSET];
return membuf_write(&to, buf, 32 * sizeof (double ));
}
/*
* Regardless of transactions , ' fp_state ' holds the current running
* value of all FPR registers and ' ckfp_state ' holds the last
* checkpointed value of all FPR registers for the current
* transaction .
*
* Userspace interface buffer layout :
*
* struct data {
* u64 vsx [ 32 ] ;
* } ;
*/
int vsr_set(struct task_struct *target, const struct user_regset *regset,
unsigned int pos, unsigned int count,
const void *kbuf, const void __user *ubuf)
{
u64 buf[32 ];
int ret, i;
flush_tmregs_to_thread(target);
flush_fp_to_thread(target);
flush_altivec_to_thread(target);
flush_vsx_to_thread(target);
for (i = 0 ; i < 32 ; i++)
buf[i] = target->thread.fp_state.fpr[i][TS_VSRLOWOFFSET];
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
buf, 0 , 32 * sizeof (double ));
if (!ret)
for (i = 0 ; i < 32 ; i++)
target->thread.fp_state.fpr[i][TS_VSRLOWOFFSET] = buf[i];
return ret;
}
Messung V0.5 in Prozent C=95 H=78 G=86
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-09-27)
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