mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-12-22 10:22:08 +00:00
100 lines
No EOL
3.3 KiB
C++
100 lines
No EOL
3.3 KiB
C++
/*
|
|
* Copyright (c) 2018-2020 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/>.
|
|
*/
|
|
#include <exosphere.hpp>
|
|
|
|
namespace ams::wdt {
|
|
|
|
namespace {
|
|
|
|
volatile uintptr_t g_register_address = secmon::MemoryRegionPhysicalDeviceTimer.GetAddress();
|
|
|
|
#if defined(ATMOSPHERE_ARCH_ARM64)
|
|
NOINLINE void Reboot(uintptr_t registers) {
|
|
__asm__ __volatile__(
|
|
/* Get the current core. */
|
|
"mrs x12, mpidr_el1\n"
|
|
"and x12, x12, #0xFF\n"
|
|
|
|
/* Get the offsets of the registers we want to write */
|
|
"mov x10, #0x8\n"
|
|
"mov x11, #0x20\n"
|
|
"madd x10, x10, x12, %[registers]\n"
|
|
"madd x11, x11, x12, %[registers]\n"
|
|
"add x10, x10, #0x60\n"
|
|
"add x11, x11, #0x100\n"
|
|
|
|
/* Write the magic unlock pattern. */
|
|
"mov w9, #0xC45A\n"
|
|
"str w9, [x11, #0xC]\n"
|
|
|
|
/* Disable the counters. */
|
|
"mov w9, #0x2\n"
|
|
"str w9, [x11, #0x8]\n"
|
|
|
|
/* Start periodic timer. */
|
|
"mov w9, #0xC0000000\n"
|
|
"str w9, [x10]\n"
|
|
|
|
/* Set reboot source to the timer we started. */
|
|
"mov w9, #0x8015\n"
|
|
"add w9, w9, w12\n"
|
|
"str w9, [x11]\n"
|
|
|
|
/* Enable the counters. */
|
|
"mov w9, #0x1\n"
|
|
"str w9, [x11, #0x8]\n"
|
|
|
|
/* Wait forever. */
|
|
"1: b 1b"
|
|
: [registers]"=&r"(registers)
|
|
:
|
|
: "x9", "x10", "x11", "x12", "memory"
|
|
);
|
|
}
|
|
#elif defined(ATMOSPHERE_ARCH_ARM)
|
|
NOINLINE void Reboot(uintptr_t registers) {
|
|
/* Write the magic unlock pattern. */
|
|
reg::Write(registers + 0x18C, 0xC45A);
|
|
|
|
/* Disable the counters. */
|
|
reg::Write(registers + 0x188, 0x2);
|
|
|
|
/* Start periodic timer. */
|
|
reg::Write(registers + 0x080, 0xC0000000);
|
|
|
|
/* Set reboot source to the timer we started. */
|
|
reg::Write(registers + 0x180, 0x8019);
|
|
|
|
/* Enable the counters. */
|
|
reg::Write(registers + 0x188, 0x1);
|
|
|
|
/* Wait forever until the reboot takes. */
|
|
AMS_INFINITE_LOOP();
|
|
}
|
|
#endif
|
|
|
|
}
|
|
|
|
void SetRegisterAddress(uintptr_t address) {
|
|
g_register_address = address;
|
|
}
|
|
|
|
NOINLINE void Reboot() {
|
|
const uintptr_t registers = g_register_address;
|
|
Reboot(registers);
|
|
}
|
|
|
|
} |