mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-11-10 07:06:34 +00:00
49 lines
1.7 KiB
ArmAsm
49 lines
1.7 KiB
ArmAsm
|
/*
|
||
|
|
* Copyright (c) 2018-2019 Atmosphère-NX
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
|
* under the terms and conditions of the GNU General Public License,
|
||
|
|
* version 2, as published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
||
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||
|
|
* more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
.section .text._ZN3ams4kern4init6loader23SaveRegistersToTpidrEl1EPv, "ax", %progbits
|
||
|
|
.global _ZN3ams4kern4init6loader23SaveRegistersToTpidrEl1EPv
|
||
|
|
_ZN3ams4kern4init6loader23SaveRegistersToTpidrEl1EPv:
|
||
|
|
/* Set TPIDR_EL1 to the input register. */
|
||
|
|
msr tpidr_el1, x0
|
||
|
|
|
||
|
|
/* Save registers to the region specified. */
|
||
|
|
mov x1, sp
|
||
|
|
stp x19, x20, [x0], #0x10
|
||
|
|
stp x21, x22, [x0], #0x10
|
||
|
|
stp x23, x24, [x0], #0x10
|
||
|
|
stp x25, x26, [x0], #0x10
|
||
|
|
stp x27, x28, [x0], #0x10
|
||
|
|
stp x29, x30, [x0], #0x10
|
||
|
|
stp x1, xzr, [x0], #0x10
|
||
|
|
mov x0, #0x0
|
||
|
|
ret
|
||
|
|
|
||
|
|
.section .text._ZN3ams4kern4init6loader22VerifyAndClearTpidrEl1EPv, "ax", %progbits
|
||
|
|
.global _ZN3ams4kern4init6loader22VerifyAndClearTpidrEl1EPv
|
||
|
|
_ZN3ams4kern4init6loader22VerifyAndClearTpidrEl1EPv:
|
||
|
|
/* Get system register area from thread-specific processor id */
|
||
|
|
mrs x1, tpidr_el1
|
||
|
|
|
||
|
|
/* We require here that the region registers are saved is same as input. */
|
||
|
|
cmp x0, x1
|
||
|
|
invalid_tpidr:
|
||
|
|
b.ne invalid_tpidr
|
||
|
|
|
||
|
|
/* Clear TPIDR_EL1. */
|
||
|
|
msr tpidr_el1, xzr
|
||
|
|
ret
|