50 lines
833 B
ArmAsm
50 lines
833 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* FP/SIMD state saving and restoring
|
|
*
|
|
* Copyright (C) 2012 ARM Ltd.
|
|
* Author: Catalin Marinas <catalin.marinas@arm.com>
|
|
*/
|
|
|
|
#include <linux/linkage.h>
|
|
|
|
#include <asm/assembler.h>
|
|
#include <asm/fpsimdmacros.h>
|
|
|
|
/*
|
|
* Save the FP registers.
|
|
*
|
|
* x0 - pointer to struct fpsimd_state
|
|
*/
|
|
ENTRY(fpsimd_save_state)
|
|
fpsimd_save x0, 8
|
|
ret
|
|
ENDPROC(fpsimd_save_state)
|
|
|
|
/*
|
|
* Load the FP registers.
|
|
*
|
|
* x0 - pointer to struct fpsimd_state
|
|
*/
|
|
ENTRY(fpsimd_load_state)
|
|
fpsimd_restore x0, 8
|
|
ret
|
|
ENDPROC(fpsimd_load_state)
|
|
|
|
#ifdef CONFIG_ARM64_SVE
|
|
ENTRY(sve_save_state)
|
|
sve_save 0, x1, 2
|
|
ret
|
|
ENDPROC(sve_save_state)
|
|
|
|
ENTRY(sve_load_state)
|
|
sve_load 0, x1, x2, 3, x4
|
|
ret
|
|
ENDPROC(sve_load_state)
|
|
|
|
ENTRY(sve_get_vl)
|
|
_sve_rdvl 0, 1
|
|
ret
|
|
ENDPROC(sve_get_vl)
|
|
#endif /* CONFIG_ARM64_SVE */
|