3.6. Device State Alteration

Variables

CUDBGResult  ( *CUDBGAPI_st::writeCCRegister )( uint32_t dev, uint32_t sm, uint32_t wp, uint32_t ln, uint32_t val )
Writes the hardware CC register.
CUDBGResult  ( *CUDBGAPI_st::writeGenericMemory )( uint32_t dev, uint32_t sm, uint32_t wp, uint32_t ln, uint64_t addr, const void* buf, uint32_t sz )
Writes content to an address in the generic address space. This function determines if the given address falls into the local, shared, or global memory window. It then accesses memory taking into account the hardware co-ordinates provided as inputs.
CUDBGResult  ( *CUDBGAPI_st::writeGlobalMemory )( uint64_t addr, const void* buf, uint32_t sz )
Writes content to an address in the global address space. If the address is valid on more than one device and one of those devices does not support UVA, an error is returned.
CUDBGResult  ( *CUDBGAPI_st::writeGlobalMemory31 )( uint32_t dev, uint64_t addr, const void* buf, uint32_t sz )
Writes content to address in the global memory segment.
CUDBGResult  ( *CUDBGAPI_st::writeGlobalMemory55 )( uint32_t dev, uint32_t sm, uint32_t wp, uint32_t ln, uint64_t addr, const void* buf, uint32_t sz )
Writes content to address in the global memory segment (entire 40-bit VA on Fermi+).
CUDBGResult  ( *CUDBGAPI_st::writeLocalMemory )( uint32_t dev, uint32_t sm, uint32_t wp, uint32_t ln, uint64_t addr, const void* buf, uint32_t sz )
Writes content to address in the local memory segment.
CUDBGResult  ( *CUDBGAPI_st::writeParamMemory )( uint32_t dev, uint32_t sm, uint32_t wp, uint64_t addr, const void* buf, uint32_t sz )
Writes content to address in the param memory segment.
CUDBGResult  ( *CUDBGAPI_st::writeRegister )( uint32_t dev, uint32_t sm, uint32_t wp, uint32_t ln, uint32_t regno, uint32_t val )
Writes content to a hardware register.
CUDBGResult  ( *CUDBGAPI_st::writeSharedMemory )( uint32_t dev, uint32_t sm, uint32_t wp, uint64_t addr, const void* buf, uint32_t sz )
Writes content to address in the shared memory segment.
CUDBGResult  ( *CUDBGAPI_st::writeUniformRegister )( uint32_t dev, uint32_t sm, uint32_t wp, uint32_t regno, uint32_t val )
Writes content to a uniform register.

Variables

CUDBGResult ( *CUDBGAPI_st::writeCCRegister )( uint32_t dev, uint32_t sm, uint32_t wp, uint32_t ln, uint32_t val )

Writes the hardware CC register. Since CUDA 6.5.

See also:

writeConstMemory

writeGenericMemory

writeGlobalMemory

writeParamMemory

writeSharedMemory

writeTextureMemory

writeLocalMemory

writeRegister

writePredicates

Parameters
dev
- device index
sm
- SM index
wp
- warp index
ln
- lane index
val
- value to write to the CC register
Returns

CUDBG_SUCCESS, CUDBG_ERROR_INVALID_ARGS, CUDBG_ERROR_INVALID_DEVICE, CUDBG_ERROR_INVALID_LANE, CUDBG_ERROR_INVALID_SM, CUDBG_ERROR_INVALID_WARP, CUDBG_ERROR_UNINITIALIZED

CUDBGResult ( *CUDBGAPI_st::writeGenericMemory )( uint32_t dev, uint32_t sm, uint32_t wp, uint32_t ln, uint64_t addr, const void* buf, uint32_t sz )

Writes content to an address in the generic address space. This function determines if the given address falls into the local, shared, or global memory window. It then accesses memory taking into account the hardware co-ordinates provided as inputs. Since CUDA 6.0.

See also:

writeParamMemory

writeSharedMemory

writeLocalMemory

writeRegister

Parameters
dev
- device index
sm
- SM index
wp
- warp index
ln
- lane index
addr
- memory address
buf
- buffer
sz
Returns

CUDBG_SUCCESS, CUDBG_ERROR_INVALID_ARGS, CUDBG_ERROR_INVALID_DEVICE, CUDBG_ERROR_INVALID_LANE, CUDBG_ERROR_INVALID_SM, CUDBG_ERROR_INVALID_WARP, CUDBG_ERROR_UNINITIALIZED, CUDBG_ERROR_MEMORY_MAPPING_FAILED, CUDBG_ERROR_ADDRESS_NOT_IN_DEVICE_MEM

CUDBGResult ( *CUDBGAPI_st::writeGlobalMemory )( uint64_t addr, const void* buf, uint32_t sz )

Writes content to an address in the global address space. If the address is valid on more than one device and one of those devices does not support UVA, an error is returned. Since CUDA 6.0.

See also:

writeParamMemory

writeSharedMemory

writeLocalMemory

writeRegister

Parameters
addr
- memory address
buf
- buffer
sz
Returns

CUDBG_SUCCESS, CUDBG_ERROR_INVALID_ARGS, CUDBG_ERROR_INVALID_DEVICE, CUDBG_ERROR_UNINITIALIZED, CUDBG_ERROR_MEMORY_MAPPING_FAILED, CUDBG_ERROR_INVALID_MEMORY_ACCESS, CUDBG_ERROR_ADDRESS_NOT_IN_DEVICE_MEM CUDBG_ERROR_AMBIGUOUS_MEMORY_ADDRESS_

CUDBGResult ( *CUDBGAPI_st::writeGlobalMemory31 )( uint32_t dev, uint64_t addr, const void* buf, uint32_t sz )

Writes content to address in the global memory segment. Since CUDA 3.0.

See also:

writeParamMemory

writeSharedMemory

writeLocalMemory

writeRegister

Parameters
dev
- device index
addr
- memory address
buf
- buffer
sz
- size of the buffer
Returns

CUDBG_SUCCESS, CUDBG_ERROR_INVALID_ARGS, CUDBG_ERROR_INVALID_DEVICE, CUDBG_ERROR_INVALID_LANE, CUDBG_ERROR_INVALID_SM, CUDBG_ERROR_INVALID_WARP, CUDBG_ERROR_UNINITIALIZED, CUDBG_ERROR_MEMORY_MAPPING_FAILED

CUDBGResult ( *CUDBGAPI_st::writeGlobalMemory55 )( uint32_t dev, uint32_t sm, uint32_t wp, uint32_t ln, uint64_t addr, const void* buf, uint32_t sz )

Writes content to address in the global memory segment (entire 40-bit VA on Fermi+). Since CUDA 3.2.

See also:

writeParamMemory

writeSharedMemory

writeLocalMemory

writeRegister

Parameters
dev
- device index
sm
- SM index
wp
- warp index
ln
- lane index
addr
- memory address
buf
- buffer
sz
- size of the buffer
Returns

CUDBG_SUCCESS, CUDBG_ERROR_INVALID_ARGS, CUDBG_ERROR_INVALID_DEVICE, CUDBG_ERROR_INVALID_LANE, CUDBG_ERROR_INVALID_SM, CUDBG_ERROR_INVALID_WARP, CUDBG_ERROR_UNINITIALIZED, CUDBG_ERROR_MEMORY_MAPPING_FAILED, CUDBG_ERROR_ADDRESS_NOT_IN_DEVICE_MEM

CUDBGResult ( *CUDBGAPI_st::writeLocalMemory )( uint32_t dev, uint32_t sm, uint32_t wp, uint32_t ln, uint64_t addr, const void* buf, uint32_t sz )

Writes content to address in the local memory segment. Since CUDA 3.0.

See also:

writeGenericMemory

writeParamMemory

writeSharedMemory

writeRegister

Parameters
dev
- device index
sm
- SM index
wp
- warp index
ln
- lane index
addr
- memory address
buf
- buffer
sz
- size of the buffer
Returns

CUDBG_SUCCESS, CUDBG_ERROR_INVALID_ARGS, CUDBG_ERROR_INVALID_DEVICE, CUDBG_ERROR_INVALID_LANE, CUDBG_ERROR_INVALID_SM, CUDBG_ERROR_INVALID_WARP, CUDBG_ERROR_UNINITIALIZED, CUDBG_ERROR_MEMORY_MAPPING_FAILED

CUDBGResult ( *CUDBGAPI_st::writeParamMemory )( uint32_t dev, uint32_t sm, uint32_t wp, uint64_t addr, const void* buf, uint32_t sz )

Writes content to address in the param memory segment. Since CUDA 3.0.

See also:

writeGenericMemory

writeSharedMemory

writeLocalMemory

writeRegister

Parameters
dev
- device index
sm
- SM index
wp
- warp index
addr
- memory address
buf
- buffer
sz
- size of the buffer
Returns

CUDBG_SUCCESS, CUDBG_ERROR_INVALID_ARGS, CUDBG_ERROR_INVALID_DEVICE, CUDBG_ERROR_INVALID_SM, CUDBG_ERROR_INVALID_WARP, CUDBG_ERROR_UNINITIALIZED, CUDBG_ERROR_MEMORY_MAPPING_FAILED

CUDBGResult ( *CUDBGAPI_st::writeRegister )( uint32_t dev, uint32_t sm, uint32_t wp, uint32_t ln, uint32_t regno, uint32_t val )

Writes content to a hardware register. Since CUDA 3.0.

See also:

writeGenericMemory

writeParamMemory

writeSharedMemory

writeLocalMemory

Parameters
dev
- device index
sm
- SM index
wp
- warp index
ln
- lane index
regno
- register index
val
- buffer
Returns

CUDBG_SUCCESS, CUDBG_ERROR_INVALID_ARGS, CUDBG_ERROR_INVALID_DEVICE, CUDBG_ERROR_INVALID_LANE, CUDBG_ERROR_INVALID_SM, CUDBG_ERROR_INVALID_WARP, CUDBG_ERROR_UNINITIALIZED

CUDBGResult ( *CUDBGAPI_st::writeSharedMemory )( uint32_t dev, uint32_t sm, uint32_t wp, uint64_t addr, const void* buf, uint32_t sz )

Writes content to address in the shared memory segment. Since CUDA 3.0.

See also:

writeGenericMemory

writeParamMemory

writeLocalMemory

writeRegister

Parameters
dev
- device index
sm
- SM index
wp
- warp index
addr
- memory address
buf
- buffer
sz
- size of the buffer
Returns

CUDBG_SUCCESS, CUDBG_ERROR_INVALID_ARGS, CUDBG_ERROR_INVALID_DEVICE, CUDBG_ERROR_INVALID_SM, CUDBG_ERROR_INVALID_WARP, CUDBG_ERROR_UNINITIALIZED, CUDBG_ERROR_MEMORY_MAPPING_FAILED

CUDBGResult ( *CUDBGAPI_st::writeUniformRegister )( uint32_t dev, uint32_t sm, uint32_t wp, uint32_t regno, uint32_t val )

Writes content to a uniform register. Since CUDA 10.0.

See also:

writeRegister

readUniformRegisterRange

Parameters
dev
- device index
sm
- SM index
wp
- warp index
regno
- register index
val
- buffer
Returns

CUDBG_SUCCESS, CUDBG_ERROR_INVALID_ARGS, CUDBG_ERROR_INVALID_DEVICE, CUDBG_ERROR_INVALID_SM, CUDBG_ERROR_INVALID_WARP, CUDBG_ERROR_UNINITIALIZED