foreman
120 wiersze
2.9 KiB
C++
120 wiersze
2.9 KiB
C++
//
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// Copyright (c) 2008 Advanced Micro Devices, Inc. All rights reserved.
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//
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#include "os/os.hpp"
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#include "platform/perfctr.hpp"
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#include "device/gpu/gpudefs.hpp"
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#include "device/gpu/gputimestamp.hpp"
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#include "device/gpu/gpuvirtual.hpp"
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#include "device/gpu/gpucounters.hpp"
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namespace gpu {
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TimeStamp::TimeStamp(
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const VirtualGPU& gpu,
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gslMemObject gslMem,
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uint memOffset,
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address cpuAddr)
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: gpu_(gpu)
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, gslMem_(gslMem)
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, memOffset_(memOffset)
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{
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values_ = reinterpret_cast<volatile uint64_t*>(cpuAddr + memOffset);
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}
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TimeStamp::~TimeStamp()
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{
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}
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void
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TimeStamp::begin(bool sdma)
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{
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if (!flags_.beginIssued_) {
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gpu().writeTimer(sdma, gslMem_,
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memOffset_ + CommandStartTime * sizeof(uint64_t));
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flags_.beginIssued_ = true;
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}
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}
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void
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TimeStamp::end(bool sdma)
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{
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CondLog(!flags_.beginIssued_, "We didn't issue a begin operation!");
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gpu().writeTimer(sdma, gslMem_,
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memOffset_ + CommandEndTime * sizeof(uint64_t));
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flags_.endIssued_ = true;
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flags_.sdma_ = sdma;
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}
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inline void
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SetValue(uint64_t* time, uint64_t val, double nanos)
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{
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*time = static_cast<uint64_t>(static_cast<double>(val) * nanos);
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}
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void
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TimeStamp::value(uint64_t* startTime, uint64_t* endTime)
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{
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CondLog(!flags_.endIssued_, "We didn't send the counter end operation!");
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const double NanoSecondsPerTick = gpu_.dev().getAttribs().nanoSecondsPerTick;
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SetValue(startTime, values_[CommandStartTime], NanoSecondsPerTick);
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SetValue(endTime, values_[CommandEndTime], NanoSecondsPerTick);
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}
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TimeStampCache::~TimeStampCache()
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{
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// Release all time stamp objects from the cache
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for (uint i = 0; i < freedTS_.size(); ++i) {
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delete freedTS_[i];
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}
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freedTS_.clear();
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// Release all memory objects
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for (uint i = 0; i < tsBuf_.size(); ++i) {
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tsBuf_[i]->unmap(&gpu_);
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delete tsBuf_[i];
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}
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tsBuf_.clear();
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}
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TimeStamp*
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TimeStampCache::allocTimeStamp()
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{
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TimeStamp* ts = NULL;
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if (0 != freedTS_.size()) {
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ts = freedTS_.back();
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freedTS_.pop_back();
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}
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if (NULL == ts) {
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if ((tsBufCpu_ == NULL) || ((tsOffset_ + TimerSlotSize) > TimerBufSize)) {
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Memory* buf = new Memory(gpu_.dev(), TimerBufSize);
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if (buf == NULL || !buf->create(Resource::Remote)) {
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return NULL;
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}
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tsBufCpu_ = reinterpret_cast<address>(buf->map(&gpu_));
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memset(tsBufCpu_, 0, TimerBufSize);
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tsOffset_ = 0;
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tsBuf_.push_back(buf);
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}
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// Allocate a TimeStamp object
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ts = new TimeStamp(gpu_, tsBuf_[(tsBuf_.size() - 1)]->gslResource(),
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tsOffset_, tsBufCpu_);
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// Create a timestamp
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if (ts == NULL) {
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return NULL;
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}
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tsOffset_ += TimerSlotSize;
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}
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// Set this timestamp into DRM profile mode if it was requested
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ts->clearStates();
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return ts;
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}
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} // namespace gpu
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