| 1 | #ifndef _3DS_UTILS_H |
| 2 | #define _3DS_UTILS_H |
| 3 | |
| 4 | #include <stdio.h> |
| 5 | #include <stdbool.h> |
| 6 | #include <3ds.h> |
| 7 | |
| 8 | #ifdef OS_HEAP_AREA_BEGIN // defined in libctru 2.0+ |
| 9 | #define USE_CTRULIB_2 1 |
| 10 | #endif |
| 11 | |
| 12 | #define MEMOP_PROT 6 |
| 13 | #define MEMOP_MAP 4 |
| 14 | #define MEMOP_UNMAP 5 |
| 15 | |
| 16 | #define DEBUG_HOLD() do{printf("%s@%s:%d.\n",__FUNCTION__, __FILE__, __LINE__);fflush(stdout);wait_for_input();}while(0) |
| 17 | |
| 18 | void wait_for_input(void); |
| 19 | |
| 20 | extern __attribute__((weak)) int __ctr_svchax; |
| 21 | |
| 22 | static bool has_rosalina; |
| 23 | |
| 24 | static inline void check_rosalina() { |
| 25 | int64_t version; |
| 26 | uint32_t major; |
| 27 | |
| 28 | has_rosalina = false; |
| 29 | |
| 30 | if (!svcGetSystemInfo(&version, 0x10000, 0)) { |
| 31 | major = GET_VERSION_MAJOR(version); |
| 32 | |
| 33 | if (major >= 8) |
| 34 | has_rosalina = true; |
| 35 | } |
| 36 | } |
| 37 | |
| 38 | void ctr_clear_cache(void); |
| 39 | |
| 40 | typedef int32_t (*ctr_callback_type)(void); |
| 41 | |
| 42 | static inline void ctr_invalidate_ICache_kernel(void) |
| 43 | { |
| 44 | __asm__ volatile( |
| 45 | "cpsid aif\n\t" |
| 46 | "mov r0, #0\n\t" |
| 47 | "mcr p15, 0, r0, c7, c5, 0\n\t"); |
| 48 | } |
| 49 | |
| 50 | static inline void ctr_flush_DCache_kernel(void) |
| 51 | { |
| 52 | __asm__ volatile( |
| 53 | "cpsid aif\n\t" |
| 54 | "mov r0, #0\n\t" |
| 55 | "mcr p15, 0, r0, c7, c10, 0\n\t"); |
| 56 | } |
| 57 | |
| 58 | static inline void ctr_invalidate_ICache(void) |
| 59 | { |
| 60 | svcBackdoor((ctr_callback_type)ctr_invalidate_ICache_kernel); |
| 61 | } |
| 62 | |
| 63 | static inline void ctr_flush_DCache(void) |
| 64 | { |
| 65 | svcBackdoor((ctr_callback_type)ctr_flush_DCache_kernel); |
| 66 | } |
| 67 | |
| 68 | static inline void ctr_flush_invalidate_cache(void) |
| 69 | { |
| 70 | if (has_rosalina) { |
| 71 | ctr_clear_cache(); |
| 72 | } else { |
| 73 | ctr_flush_DCache(); |
| 74 | ctr_invalidate_ICache(); |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | #endif // _3DS_UTILS_H |