1
0
Fork 0
mirror of https://github.com/Atmosphere-NX/Atmosphere.git synced 2024-11-10 14:11:43 +00:00
Atmosphere/exosphere/src/utils.c
2018-06-01 22:20:04 -06:00

63 lines
2.6 KiB
C

#include <stdbool.h>
#include <string.h>
#include "utils.h"
#include "se.h"
#include "fuse.h"
#include "pmc.h"
#include "timers.h"
#define SAVE_SYSREG64(reg, ofs) do { __asm__ __volatile__ ("mrs %0, " #reg : "=r"(temp_reg) :: "memory"); MAKE_REG32(MMIO_GET_DEVICE_ADDRESS(MMIO_DEVID_DEBUG_IRAM) + ofs) = (uint32_t)((temp_reg >> 0) & 0xFFFFFFFFULL); MAKE_REG32(MMIO_GET_DEVICE_ADDRESS(MMIO_DEVID_DEBUG_IRAM) + ofs + 4) = (uint32_t)((temp_reg >> 32) & 0xFFFFFFFFULL); } while(false)
__attribute__ ((noreturn)) void panic(uint32_t code) {
/* Set Panic Code for NX_BOOTLOADER. */
if (APBDEV_PMC_SCRATCH200_0 == 0) {
APBDEV_PMC_SCRATCH200_0 = code;
}
/* Uncomment for Debugging.
uint64_t temp_reg;
MAKE_REG32(MMIO_GET_DEVICE_ADDRESS(MMIO_DEVID_DEBUG_IRAM)) = APBDEV_PMC_SCRATCH200_0;
SAVE_SYSREG64(ESR_EL3, 0x10);
SAVE_SYSREG64(ELR_EL3, 0x18);
SAVE_SYSREG64(FAR_EL3, 0x20);
MAKE_REG32(MMIO_GET_DEVICE_ADDRESS(MMIO_DEVID_RTC_PMC) + 0x450ull) = 0x2;
MAKE_REG32(MMIO_GET_DEVICE_ADDRESS(MMIO_DEVID_RTC_PMC) + 0x400ull) = 0x10; */
/* TODO: Custom Panic Driver, which displays to screen without rebooting. */
/* For now, just use NX BOOTLOADER's panic. */
fuse_disable_programming();
APBDEV_PMC_CRYPTO_OP_0 = 1; /* Disable all SE operations. */
// while (1) { }
watchdog_reboot();
}
__attribute__ ((noreturn)) void generic_panic(void) {
/* Uncomment for Debugging.
uint64_t temp_reg;
do { __asm__ __volatile__ ("mov %0, LR" : "=r"(temp_reg) :: "memory"); } while (false);
MAKE_REG32(MMIO_GET_DEVICE_ADDRESS(MMIO_DEVID_DEBUG_IRAM) + 0x28) = (uint32_t)((temp_reg >> 0) & 0xFFFFFFFFULL);
MAKE_REG32(MMIO_GET_DEVICE_ADDRESS(MMIO_DEVID_DEBUG_IRAM) + 0x28 + 4) = (uint32_t)((temp_reg >> 32) & 0xFFFFFFFFULL);
do { __asm__ __volatile__ ("mov %0, SP" : "=r"(temp_reg) :: "memory"); } while (false);
for (unsigned int i = 0; i < 0x80; i += 4) {
MAKE_REG32(MMIO_GET_DEVICE_ADDRESS(MMIO_DEVID_DEBUG_IRAM) + 0x40 + i) = *((volatile uint32_t *)(temp_reg + i));
} */
panic(0xFF000006);
}
__attribute__ ((noreturn)) void panic_predefined(uint32_t which) {
static const uint32_t codes[0x10] = {COLOR_0, COLOR_1, COLOR_2, COLOR_3, COLOR_4, COLOR_5, COLOR_6, COLOR_7, COLOR_8, COLOR_9, COLOR_A, COLOR_B, COLOR_C, COLOR_D, COLOR_E, COLOR_F};
panic(codes[which & 0xF]);
}
__attribute__((noinline)) bool overlaps(uint64_t as, uint64_t ae, uint64_t bs, uint64_t be)
{
if(as <= bs && bs <= ae)
return true;
if(bs <= as && as <= be)
return true;
return false;
}
uintptr_t get_iram_address_for_debug(void) {
return MMIO_GET_DEVICE_ADDRESS(MMIO_DEVID_DEBUG_IRAM);
}