Merge branch 'origin/pghafari/opencl' into lmoriche/amd-master-next
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//
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// Copyright (c) 2013 Advanced Micro Devices, Inc. All rights reserved.
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//
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#include "cl_common.hpp"
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#include "platform/memory.hpp"
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#include "platform/context.hpp"
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#include "platform/command.hpp"
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/*! \addtogroup API
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* @{
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*
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* \addtogroup CL_Pipes
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* @{
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*/
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/*! \brief creates a pipe object.
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*
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* \param context is a valid OpenCL context used to create the pipe object.
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*
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* \param flags is a bit-field that is used to specify allocation and usage
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* information such as the memory arena that should be used to allocate the pipe
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* object and how it will be used. Only CL_MEM_READ_ONLY, CL_MEM_WRITE_ONLY,
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* CL_MEM_READ_WRITE and CL_MEM_HOST_NO_ACCESS can be specified when creating a
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* pipe object. If value specified for flags is 0, the default is used which is
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* CL_MEM_READ_WRITE.
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*
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* \param pipe_packet_size is the size in bytes of a pipe packet.
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*
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* \param pipe_max_packets specifies the pipe capacity by specifying the maximum
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* number of packets the pipe can hold.
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*
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* \param properties specifies a list of properties for the pipe and their
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* corresponding values. Each property name is immediately followed by the
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* corresponding desired value. The list is terminated with 0.
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*
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* In OpenCL 2.0, properties must be NULL.
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*
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* \param errcode_ret will return an appropriate error code.
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* If \a errcode_ret is NULL, no error code is returned.
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*
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* \return a valid non-zero pipe object and \a errcode_ret is set to CL_SUCCESS
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* if the pipe object is created successfully. Otherwise, it returns a NULL
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* value with one of the following error values returned in errcode_ret:
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* - CL_INVALID_CONTEXT if context is not a valid context.
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* - CL_INVALID_VALUE if values specified in flags are not as defined above.
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* - CL_INVALID_VALUE if properties is not NULL.
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* - CL_INVALID_PIPE_SIZE if pipe_packet_size is 0 or the pipe_packet_size
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* exceeds CL_DEVICE_PIPE_MAX_PACKET_SIZE value for all devices in context
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* or if pipe_max_packets is 0.
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* - CL_MEM_OBJECT_ALLOCATION_FAILURE if there is a failure to allocate memory
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* for the pipe object.
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* - CL_OUT_OF_RESOURCES if there is a failure to allocate resources required
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* by the OpenCL implementation on the device.
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* - CL_OUT_OF_HOST_MEMORY if there is a failure to allocate resources required
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* by the OpenCL implementation on the host.
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*
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* \version 2.0r19
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*/
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RUNTIME_ENTRY_RET(cl_mem, clCreatePipe,
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(cl_context context, cl_mem_flags flags, cl_uint pipe_packet_size,
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cl_uint pipe_max_packets, const cl_pipe_properties* properties,
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cl_int* errcode_ret)) {
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if (!is_valid(context)) {
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*not_null(errcode_ret) = CL_INVALID_CONTEXT;
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return NULL;
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}
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// check flags for validity
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cl_bitfield temp =
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flags & (CL_MEM_READ_WRITE | CL_MEM_WRITE_ONLY | CL_MEM_READ_ONLY | CL_MEM_HOST_NO_ACCESS);
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if (temp &&
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!(CL_MEM_READ_WRITE == temp || CL_MEM_WRITE_ONLY == temp || CL_MEM_READ_ONLY == temp ||
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CL_MEM_HOST_NO_ACCESS == temp)) {
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*not_null(errcode_ret) = CL_INVALID_VALUE;
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LogWarning("invalid parameter \"flags\"");
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return (cl_mem)0;
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}
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size_t size = sizeof(struct clk_pipe_t) + pipe_packet_size * pipe_max_packets;
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const std::vector<amd::Device*>& devices = as_amd(context)->devices();
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bool sizePass = false;
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for (const auto& it : devices) {
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if (it->info().maxMemAllocSize_ >= size) {
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sizePass = true;
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break;
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}
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}
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// check size
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if (pipe_packet_size == 0 || pipe_max_packets == 0 || !sizePass) {
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*not_null(errcode_ret) = CL_INVALID_PIPE_SIZE;
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LogWarning("invalid parameter \"size = 0 or size > CL_DEVICE_PIPE_MAX_PACKET_SIZE\"");
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return (cl_mem)0;
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}
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amd::Context& amdContext = *as_amd(context);
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amd::Memory* mem = new (amdContext)
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amd::Pipe(amdContext, flags, size, (size_t)pipe_packet_size, (size_t)pipe_max_packets);
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if (mem == NULL) {
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*not_null(errcode_ret) = CL_OUT_OF_HOST_MEMORY;
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return (cl_mem)0;
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}
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if (!mem->create()) {
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*not_null(errcode_ret) = CL_MEM_OBJECT_ALLOCATION_FAILURE;
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mem->release();
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return NULL;
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}
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*not_null(errcode_ret) = CL_SUCCESS;
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return as_cl(mem);
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}
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RUNTIME_EXIT
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/*! \brief Get information specific to a pipe object created with clCreatePipe.
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*
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* \param param_name specifies the information to query.
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*
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* \param param_value is a pointer to memory where the appropriate result being
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* queried is returned. If param_value is NULL, it is ignored.
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*
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* \param param_value_size is used to specify the size in bytes of memory
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* pointed to by param_value. This size must be >= size of return type.
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*
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* \param param_value_size_ret returns the actual size in bytes of data being
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* queried by param_value. If param_value_size_ret is NULL, it is ignored.
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*
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* \return CL_SUCCESS if the function is executed successfully. Otherwise, it
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* returns one of the following errors:
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* - CL_INVALID_VALUE if param_name is not valid, or if size in bytes specified
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* by param_value_size is < size of return type and param_value is not NULL.
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* - CL_INVALID_MEM_OBJECT if pipe is a not a valid pipe object.
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* - CL_OUT_OF_RESOURCES if there is a failure to allocate resources required
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* by the OpenCL implementation on the device.
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* - CL_OUT_OF_HOST_MEMORY if there is a failure to allocate resources required
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* by the OpenCL implementation on the host.
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*
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* \version 2.0r19
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*/
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RUNTIME_ENTRY(cl_int, clGetPipeInfo,
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(cl_mem memobj, cl_image_info param_name, size_t param_value_size, void* param_value,
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size_t* param_value_size_ret)) {
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if (!is_valid(memobj)) {
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return CL_INVALID_MEM_OBJECT;
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}
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amd::Pipe* pipe = as_amd(memobj)->asPipe();
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if (pipe == NULL) {
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return CL_INVALID_MEM_OBJECT;
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}
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switch (param_name) {
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case CL_PIPE_PACKET_SIZE: {
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cl_uint packetSize = pipe->getPacketSize();
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return amd::clGetInfo(packetSize, param_value_size, param_value, param_value_size_ret);
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}
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case CL_PIPE_MAX_PACKETS: {
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cl_uint count = pipe->getMaxNumPackets();
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return amd::clGetInfo(count, param_value_size, param_value, param_value_size_ret);
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}
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default:
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break;
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}
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return CL_INVALID_VALUE;
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}
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RUNTIME_EXIT
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/*! @}
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* @}
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*/
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