Release 4.14 arch/s390/include/asm/fpu/internal.h
/* SPDX-License-Identifier: GPL-2.0 */
/*
* FPU state and register content conversion primitives
*
* Copyright IBM Corp. 2015
* Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
*/
#ifndef _ASM_S390_FPU_INTERNAL_H
#define _ASM_S390_FPU_INTERNAL_H
#include <linux/string.h>
#include <asm/ctl_reg.h>
#include <asm/fpu/types.h>
static inline void save_vx_regs(__vector128 *vxrs)
{
asm volatile(
" la 1,%0\n"
" .word 0xe70f,0x1000,0x003e\n" /* vstm 0,15,0(1) */
" .word 0xe70f,0x1100,0x0c3e\n" /* vstm 16,31,256(1) */
: "=Q" (*(struct vx_array *) vxrs) : : "1");
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Hendrik Brueckner | 17 | 94.44% | 2 | 66.67% |
| Martin Schwidefsky | 1 | 5.56% | 1 | 33.33% |
| Total | 18 | 100.00% | 3 | 100.00% |
static inline void convert_vx_to_fp(freg_t *fprs, __vector128 *vxrs)
{
int i;
for (i = 0; i < __NUM_FPRS; i++)
fprs[i] = *(freg_t *)(vxrs + i);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Hendrik Brueckner | 47 | 100.00% | 1 | 100.00% |
| Total | 47 | 100.00% | 1 | 100.00% |
static inline void convert_fp_to_vx(__vector128 *vxrs, freg_t *fprs)
{
int i;
for (i = 0; i < __NUM_FPRS; i++)
*(freg_t *)(vxrs + i) = fprs[i];
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Hendrik Brueckner | 47 | 100.00% | 1 | 100.00% |
| Total | 47 | 100.00% | 1 | 100.00% |
static inline void fpregs_store(_s390_fp_regs *fpregs, struct fpu *fpu)
{
fpregs->pad = 0;
fpregs->fpc = fpu->fpc;
if (MACHINE_HAS_VX)
convert_vx_to_fp((freg_t *)&fpregs->fprs, fpu->vxrs);
else
memcpy((freg_t *)&fpregs->fprs, fpu->fprs,
sizeof(fpregs->fprs));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Hendrik Brueckner | 66 | 89.19% | 2 | 66.67% |
| Martin Schwidefsky | 8 | 10.81% | 1 | 33.33% |
| Total | 74 | 100.00% | 3 | 100.00% |
static inline void fpregs_load(_s390_fp_regs *fpregs, struct fpu *fpu)
{
fpu->fpc = fpregs->fpc;
if (MACHINE_HAS_VX)
convert_fp_to_vx(fpu->vxrs, (freg_t *)&fpregs->fprs);
else
memcpy(fpu->fprs, (freg_t *)&fpregs->fprs,
sizeof(fpregs->fprs));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Hendrik Brueckner | 60 | 88.24% | 2 | 66.67% |
| Martin Schwidefsky | 8 | 11.76% | 1 | 33.33% |
| Total | 68 | 100.00% | 3 | 100.00% |
#endif /* _ASM_S390_FPU_INTERNAL_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Hendrik Brueckner | 256 | 93.43% | 4 | 57.14% |
| Martin Schwidefsky | 17 | 6.20% | 2 | 28.57% |
| Greg Kroah-Hartman | 1 | 0.36% | 1 | 14.29% |
| Total | 274 | 100.00% | 7 | 100.00% |
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