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>
101 lines
2.4 KiB
C++
101 lines
2.4 KiB
C++
/* SPDX-License-Identifier: Apache-2.0
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* Copyright 2021-2022 Intel Corporation */
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#ifdef WITH_ONEAPI
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# include "device/device.h"
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# include "device/oneapi/device.h"
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# include "device/oneapi/queue.h"
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# include "util/map.h"
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CCL_NAMESPACE_BEGIN
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class DeviceQueue;
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class OneapiDevice : public Device {
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private:
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SyclQueue *device_queue_;
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using ConstMemMap = map<string, device_vector<uchar> *>;
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ConstMemMap const_mem_map_;
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device_vector<TextureInfo> texture_info_;
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bool need_texture_info_;
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void *kg_memory_;
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void *kg_memory_device_;
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size_t kg_memory_size_ = (size_t)0;
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OneAPIDLLInterface oneapi_dll_;
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std::string oneapi_error_string_;
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public:
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virtual BVHLayoutMask get_bvh_layout_mask() const override;
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OneapiDevice(const DeviceInfo &info,
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OneAPIDLLInterface &oneapi_dll_object,
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Stats &stats,
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Profiler &profiler);
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virtual ~OneapiDevice();
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bool check_peer_access(Device *peer_device) override;
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bool load_kernels(const uint requested_features) override;
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void load_texture_info();
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void generic_alloc(device_memory &mem);
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void generic_copy_to(device_memory &mem);
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void generic_free(device_memory &mem);
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SyclQueue *sycl_queue();
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string oneapi_error_message();
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OneAPIDLLInterface oneapi_dll_object();
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void *kernel_globals_device_pointer();
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void mem_alloc(device_memory &mem) override;
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void mem_copy_to(device_memory &mem) override;
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void mem_copy_from(device_memory &mem, size_t y, size_t w, size_t h, size_t elem) override;
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void mem_copy_from(device_memory &mem)
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{
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mem_copy_from(mem, 0, 0, 0, 0);
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}
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void mem_zero(device_memory &mem) override;
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void mem_free(device_memory &mem) override;
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device_ptr mem_alloc_sub_ptr(device_memory &mem, size_t offset, size_t /*size*/) override;
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virtual void const_copy_to(const char *name, void *host, size_t size) override;
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void global_alloc(device_memory &mem);
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void global_free(device_memory &mem);
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void tex_alloc(device_texture &mem);
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void tex_free(device_texture &mem);
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/* Graphics resources interoperability. */
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virtual bool should_use_graphics_interop() override;
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virtual unique_ptr<DeviceQueue> gpu_queue_create() override;
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/* NOTE(@nsirgien): Create this methods to avoid some compilation problems on Windows with host
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* side compilation (MSVC). */
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void *usm_aligned_alloc_host(size_t memory_size, size_t alignment);
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void usm_free(void *usm_ptr);
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};
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CCL_NAMESPACE_END
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#endif
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