| Server IP : 209.38.156.173 / Your IP : 216.73.216.122 [ Web Server : Apache/2.4.52 (Ubuntu) System : Linux lakekumayuhotel 5.15.0-136-generic #147-Ubuntu SMP Sat Mar 15 15:53:30 UTC 2025 x86_64 User : root ( 0) PHP Version : 8.1.2-1ubuntu2.22 Disable Function : NONE Domains : 2 Domains MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /usr/src/linux-headers-5.15.0-152/arch/s390/include/asm/fpu/ |
Upload File : |
/* 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");
}
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);
}
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];
}
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));
}
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));
}
#endif /* _ASM_S390_FPU_INTERNAL_H */