Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 1234]

AMDGPU
RuntimeMD
IsaInfo
Metadata	In-memory representation of instruction set architecture information
Kernel
Metadata
KernelArg
Metadata
Program
Metadata
__ClangOffloadBundleDesc
__ClangOffloadBundleHeader
__CudaFatBinaryWrapper
__half2_raw
__half_raw
__hip_enable_if
__hip_enable_if< true, __T >
__u
char1
char2
char3
char4
Coordinates
DbName
dim3
double1
double2
double3
double4
FakeMutex
float1
float2
float3
float4
HIP_ARRAY_DESCRIPTOR
hip_Memcpy2D
hipArray
hipChannelFormatDesc
hipDeviceArch_t
hipDeviceProp_t
hipDoubleComplex
hipExtent
hipFloatComplex
hipFuncAttributes
hipIpcMemHandle_st
hipMemcpy3DParms
hipMipmappedArray
hipPitchedPtr
hipPointerAttribute_t
hipPos
hipResourceDesc
hipResourceViewDesc
hipSurface
hipTexture
hipTextureDesc
ihipCtx_t
ihipCtxCriticalBase_t
ihipDevice_t
ihipDeviceCriticalBase_t
ihipEvent_t
ihipEventCriticalBase_t
ihipEventData_t
ihipException
ihipExec_t
ihipIpcMemHandle_t
ihipKernArgInfo
ihipModule_t
ihipModuleSymbol_t
ihipStream_t
ihipStreamCallback_t
ihipStreamCriticalBase_t
int1
int2
int3
int4
LockedAccessor
LockedBase
long1
long2
long3
long4
longlong1
longlong2
longlong3
longlong4
ProfTrigger
short1
short2
short3
short4
surfaceReference
TData
textureReference
TidInfo
uchar1
uchar2
uchar2Holder
uchar3
uchar4
ucharHolder
uint1
uint2
uint3
uint4
ulong1
ulong2
ulong3
ulong4
ulonglong1
ulonglong2
ulonglong3
ulonglong4
ushort1
ushort2
ushort3
ushort4