memory: honor sparse AMM unmaps and restore failed GPU ranges

src/kernel/memory.h

@@ -112,6 +112,7 @@ void                   SetFlexibleMemorySize(uint64_t size);
 int AllocateDirectMemory(int64_t search_start, int64_t search_end, size_t size, size_t alignment,
                          int memory_type, int64_t* phys_addr_out, bool automatic = false);
 int MapAutomaticMemory(uint64_t vaddr, size_t size, int type, int prot);
+int UnmapAmmMemory(uint64_t vaddr, size_t size);
 bool                   TryWriteBacking(uint64_t vaddr, const void* data, uint64_t size);
 bool                   TryReadBacking(uint64_t vaddr, void* data, uint64_t size);
 bool                   TryReadBufferBacking(uint64_t vaddr, void* data, uint64_t size);
@@ -192,6 +193,7 @@ bool ProtectGuestHostMemory(uint64_t vaddr, uint64_t size, Common::VirtualMemory
 bool FreeGuestMemory(uint64_t vaddr, uint64_t size);
 
 #if defined(KYTY_VIRTUAL_MEMORY_ALLOCATION_TESTS)
+void     TestSetGpuRangeCallback(void (*callback)(bool mapped, uint64_t addr, size_t size));
 void     TestBeforeNextBackingMap(callback_func_t callback);
 void     TestSetBackingReadCallback(callback_func_t callback);
 void     TestFailNextPhysicalMemoryUnmap();