cfc5180e5a
In order to be able to reuse the save-restore code in KVM, move it to a pair of macros, similar to what the 32bit code does. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
64 lines
2 KiB
C
64 lines
2 KiB
C
/*
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* FP/SIMD state saving and restoring macros
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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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.macro fpsimd_save state, tmpnr
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stp q0, q1, [\state, #16 * 0]
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stp q2, q3, [\state, #16 * 2]
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stp q4, q5, [\state, #16 * 4]
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stp q6, q7, [\state, #16 * 6]
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stp q8, q9, [\state, #16 * 8]
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stp q10, q11, [\state, #16 * 10]
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stp q12, q13, [\state, #16 * 12]
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stp q14, q15, [\state, #16 * 14]
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stp q16, q17, [\state, #16 * 16]
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stp q18, q19, [\state, #16 * 18]
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stp q20, q21, [\state, #16 * 20]
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stp q22, q23, [\state, #16 * 22]
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stp q24, q25, [\state, #16 * 24]
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stp q26, q27, [\state, #16 * 26]
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stp q28, q29, [\state, #16 * 28]
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stp q30, q31, [\state, #16 * 30]!
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mrs x\tmpnr, fpsr
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str w\tmpnr, [\state, #16 * 2]
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mrs x\tmpnr, fpcr
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str w\tmpnr, [\state, #16 * 2 + 4]
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.endm
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.macro fpsimd_restore state, tmpnr
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ldp q0, q1, [\state, #16 * 0]
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ldp q2, q3, [\state, #16 * 2]
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ldp q4, q5, [\state, #16 * 4]
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ldp q6, q7, [\state, #16 * 6]
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ldp q8, q9, [\state, #16 * 8]
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ldp q10, q11, [\state, #16 * 10]
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ldp q12, q13, [\state, #16 * 12]
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ldp q14, q15, [\state, #16 * 14]
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ldp q16, q17, [\state, #16 * 16]
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ldp q18, q19, [\state, #16 * 18]
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ldp q20, q21, [\state, #16 * 20]
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ldp q22, q23, [\state, #16 * 22]
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ldp q24, q25, [\state, #16 * 24]
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ldp q26, q27, [\state, #16 * 26]
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ldp q28, q29, [\state, #16 * 28]
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ldp q30, q31, [\state, #16 * 30]!
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ldr w\tmpnr, [\state, #16 * 2]
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msr fpsr, x\tmpnr
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ldr w\tmpnr, [\state, #16 * 2 + 4]
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msr fpcr, x\tmpnr
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.endm
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