foreman
06c6754f72
SWDEV-79445 - OCL generic changes and code clean-up
- Prepare the changes to remove resource rename feature. Resource rename can substitute a low level memory object in the current resource with a different one in order to avoid GPU stalls on frequent CPU updates, like constant buffers or staging buffers. Renaming was necessary due to CAL and old HW limitations to manage suballocations and has some inefficiency with tiny updates and staging buffers.
- This change removes renames usage from the constant buffer management
Affected files ...
... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palconstbuf.cpp#3 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palconstbuf.hpp#4 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palkernel.cpp#45 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palvirtual.cpp#78 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palvirtual.hpp#43 edit
[ROCm/clr commit: db04b3b295]
69 rader
2.2 KiB
C++
69 rader
2.2 KiB
C++
//
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// Copyright (c) 2015 Advanced Micro Devices, Inc. All rights reserved.
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//
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#pragma once
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#include "device/pal/palmemory.hpp"
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//! \namespace pal PAL Resource Implementation
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namespace pal {
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//! Managed buffer (staging or constant)
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class ManagedBuffer : public amd::HeapObject {
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public:
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//! Constructor for the ConstBuffer class
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ManagedBuffer(VirtualGPU& gpu, //!< Virtual GPU device object
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uint32_t size //!< size of the managed buffers in bytes
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);
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//! Destructor for the ConstBuffer class
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~ManagedBuffer();
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//! Creates the real HW constant buffer
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bool create(Resource::MemoryType type, bool constBuf = false);
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/*! \brief Uploads current constant buffer data from sysMemCopy_ to HW
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*
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* \return True if the data upload was succesful
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*/
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bool uploadDataToHw(uint32_t size //!< real data size for upload
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);
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//! Returns a pointer to the system memory copy for CB
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address sysMemCopy() const { return sysMemCopy_; }
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//! Returns CB size
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uint32_t size() const { return size_; }
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//! Returns current write offset for the constant buffer
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uint32_t wrtOffset() const { return wrtOffset_; }
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//! Returns last write size for the constant buffer
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uint32_t lastWrtSize() const { return lastWrtSize_; }
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Memory* activeMemory() const { return buffers_[activeBuffer_]; }
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uint64_t vmAddress() const { return buffers_[activeBuffer_]->vmAddress(); }
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private:
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//! The maximum number of the managed buffers
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static constexpr uint32_t MaxNumberOfBuffers = 3;
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//! Disable copy constructor
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ManagedBuffer(const ManagedBuffer&) = delete;
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//! Disable operator=
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ManagedBuffer& operator=(const ManagedBuffer&) = delete;
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VirtualGPU& gpu_; //!< Virtual GPU object
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std::vector<Memory*> buffers_; //!< Buffers for management
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uint32_t activeBuffer_; //!< Current active buffer
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address sysMemCopy_; //!< System memory copy
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uint32_t size_; //!< Constant buffer size
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uint32_t wrtOffset_; //!< Current write offset
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uint32_t lastWrtSize_; //!< Last write size
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void* wrtAddress_; //!< Write address in CB
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};
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/*@}*/} // namespace pal
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