+#define MEMOP_PROT 6
+#define MEMOP_MAP 4
+#define MEMOP_UNMAP 5
+
+#define DEBUG_HOLD() do{printf("%s@%s:%d.\n",__FUNCTION__, __FILE__, __LINE__);fflush(stdout);wait_for_input();}while(0)
+
+void wait_for_input(void);
+
+extern __attribute__((weak)) int __ctr_svchax;
+
+static bool has_rosalina;
+
+static inline void check_rosalina() {
+ int64_t version;
+ uint32_t major;
+
+ has_rosalina = false;
+
+ if (!svcGetSystemInfo(&version, 0x10000, 0)) {
+ major = GET_VERSION_MAJOR(version);
+
+ if (major >= 8)
+ has_rosalina = true;
+ }
+}
+
+void ctr_clear_cache(void);
+
+typedef int32_t (*ctr_callback_type)(void);
+
+static inline void ctr_invalidate_ICache_kernel(void)
+{
+ __asm__ volatile(
+ "cpsid aif\n\t"
+ "mov r0, #0\n\t"
+ "mcr p15, 0, r0, c7, c5, 0\n\t");
+}
+
+static inline void ctr_flush_DCache_kernel(void)
+{
+ __asm__ volatile(
+ "cpsid aif\n\t"
+ "mov r0, #0\n\t"
+ "mcr p15, 0, r0, c7, c10, 0\n\t");
+}
+
+static inline void ctr_invalidate_ICache(void)
+{
+ svcBackdoor((ctr_callback_type)ctr_invalidate_ICache_kernel);
+}
+
+static inline void ctr_flush_DCache(void)
+{
+ svcBackdoor((ctr_callback_type)ctr_flush_DCache_kernel);
+}
+
+static inline void ctr_flush_invalidate_cache(void)
+{
+ if (has_rosalina) {
+ ctr_clear_cache();
+ } else {
+ ctr_flush_DCache();
+ ctr_invalidate_ICache();
+ }
+}