a02992f131
This patch adds a new Cycles device with similar functionality to the existing GPU devices. Kernel compilation and runtime interaction happen via oneAPI DPC++ compiler and SYCL API. This implementation is primarly focusing on Intel® Arc™ GPUs and other future Intel GPUs. The first supported drivers are 101.1660 on Windows and 22.10.22597 on Linux. The necessary tools for compilation are: - A SYCL compiler such as oneAPI DPC++ compiler or https://github.com/intel/llvm - Intel® oneAPI Level Zero which is used for low level device queries: https://github.com/oneapi-src/level-zero - To optionally generate prebuilt graphics binaries: Intel® Graphics Compiler All are included in Linux precompiled libraries on svn: https://svn.blender.org/svnroot/bf-blender/trunk/lib The same goes for Windows precompiled binaries but for the graphics compiler, available as "Intel® Graphics Offline Compiler for OpenCL™ Code" from https://www.intel.com/content/www/us/en/developer/articles/tool/oneapi-standalone-components.html, for which path can be set as OCLOC_INSTALL_DIR. Being based on the open SYCL standard, this implementation could also be extended to run on other compatible non-Intel hardware in the future. Reviewed By: sergey, brecht Differential Revision: https://developer.blender.org/D15254 Co-authored-by: Nikita Sirgienko <nikita.sirgienko@intel.com> Co-authored-by: Stefan Werner <stefan.werner@intel.com>
48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
/* SPDX-License-Identifier: Apache-2.0
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* Copyright 2021-2022 Intel Corporation */
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#pragma once
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#include "kernel/integrator/state.h"
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#include "kernel/types.h"
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#include "kernel/util/profiling.h"
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CCL_NAMESPACE_BEGIN
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/* NOTE(@nsirgien): With SYCL we can't declare __constant__ global variable, which will be
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* accessible from device code, like it has been done for Cycles CUDA backend. So, the backend will
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* allocate this "constant" memory regions and store pointers to them in oneAPI context class */
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struct IntegratorStateGPU;
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struct IntegratorQueueCounter;
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typedef struct KernelGlobalsGPU {
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#define KERNEL_DATA_ARRAY(type, name) const type *__##name = nullptr;
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#include "kernel/data_arrays.h"
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#undef KERNEL_DATA_ARRAY
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IntegratorStateGPU *integrator_state;
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const KernelData *__data;
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#ifdef WITH_ONEAPI_SYCL_HOST_ENABLED
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size_t nd_item_local_id_0;
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size_t nd_item_local_range_0;
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size_t nd_item_group_0;
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size_t nd_item_group_range_0;
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size_t nd_item_global_id_0;
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size_t nd_item_global_range_0;
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#endif
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} KernelGlobalsGPU;
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typedef ccl_global KernelGlobalsGPU *ccl_restrict KernelGlobals;
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#define kernel_data (*(__data))
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#define kernel_integrator_state (*(integrator_state))
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/* data lookup defines */
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#define kernel_data_fetch(name, index) __##name[index]
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#define kernel_data_array(name) __##name
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CCL_NAMESPACE_END
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