68 строки
1.5 KiB
ArmAsm
68 строки
1.5 KiB
ArmAsm
/*
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* FP/SIMD state saving and restoring
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*
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* Copyright (C) 2012 ARM Ltd.
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* Author: Catalin Marinas <catalin.marinas@arm.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/linkage.h>
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#include <asm/assembler.h>
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#include <asm/fpsimdmacros.h>
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/*
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* Save the FP registers.
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*
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* x0 - pointer to struct fpsimd_state
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*/
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ENTRY(fpsimd_save_state)
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fpsimd_save x0, 8
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ret
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ENDPROC(fpsimd_save_state)
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/*
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* Load the FP registers.
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*
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* x0 - pointer to struct fpsimd_state
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*/
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ENTRY(fpsimd_load_state)
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fpsimd_restore x0, 8
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ret
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ENDPROC(fpsimd_load_state)
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#ifdef CONFIG_KERNEL_MODE_NEON
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/*
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* Save the bottom n FP registers.
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*
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* x0 - pointer to struct fpsimd_partial_state
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*/
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ENTRY(fpsimd_save_partial_state)
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fpsimd_save_partial x0, 1, 8, 9
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ret
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ENDPROC(fpsimd_save_partial_state)
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/*
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* Load the bottom n FP registers.
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*
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* x0 - pointer to struct fpsimd_partial_state
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*/
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ENTRY(fpsimd_load_partial_state)
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fpsimd_restore_partial x0, 8, 9
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ret
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ENDPROC(fpsimd_load_partial_state)
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#endif
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