mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-11-14 00:56:35 +00:00
49 lines
1.7 KiB
ArmAsm
49 lines
1.7 KiB
ArmAsm
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/*
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* Copyright (c) 2018-2019 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* 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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.section .text._ZN3ams4kern4init6loader23SaveRegistersToTpidrEl1EPv, "ax", %progbits
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.global _ZN3ams4kern4init6loader23SaveRegistersToTpidrEl1EPv
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_ZN3ams4kern4init6loader23SaveRegistersToTpidrEl1EPv:
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/* Set TPIDR_EL1 to the input register. */
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msr tpidr_el1, x0
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/* Save registers to the region specified. */
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mov x1, sp
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stp x19, x20, [x0], #0x10
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stp x21, x22, [x0], #0x10
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stp x23, x24, [x0], #0x10
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stp x25, x26, [x0], #0x10
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stp x27, x28, [x0], #0x10
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stp x29, x30, [x0], #0x10
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stp x1, xzr, [x0], #0x10
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mov x0, #0x0
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ret
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.section .text._ZN3ams4kern4init6loader22VerifyAndClearTpidrEl1EPv, "ax", %progbits
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.global _ZN3ams4kern4init6loader22VerifyAndClearTpidrEl1EPv
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_ZN3ams4kern4init6loader22VerifyAndClearTpidrEl1EPv:
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/* Get system register area from thread-specific processor id */
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mrs x1, tpidr_el1
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/* We require here that the region registers are saved is same as input. */
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cmp x0, x1
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invalid_tpidr:
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b.ne invalid_tpidr
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/* Clear TPIDR_EL1. */
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msr tpidr_el1, xzr
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ret
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