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@ -6,6 +6,7 @@
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#include "common/microprofile.h"
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#include "core/core.h"
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#include "core/core_timing.h"
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#include "core/core_timing_util.h"
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#include "core/memory.h"
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#include "video_core/engines/fermi_2d.h"
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#include "video_core/engines/kepler_compute.h"
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@ -122,6 +123,17 @@ bool GPU::CancelSyncptInterrupt(const u32 syncpoint_id, const u32 value) {
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return true;
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}
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// This values were reversed engineered by fincs from NVN
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// The gpu clock is reported in units of 385/625 nanoseconds
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constexpr u64 gpu_ticks_num = 384;
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constexpr u64 gpu_ticks_den = 625;
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u64 GPU::GetTicks() const {
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const u64 cpu_ticks = system.CoreTiming().GetTicks();
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const u64 nanoseconds = Core::Timing::CyclesToNs(cpu_ticks).count();
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return (nanoseconds * gpu_ticks_num) / gpu_ticks_den;
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}
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void GPU::FlushCommands() {
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renderer.Rasterizer().FlushCommands();
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}
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@ -340,7 +352,7 @@ void GPU::ProcessSemaphoreTriggerMethod() {
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block.sequence = regs.semaphore_sequence;
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// TODO(Kmather73): Generate a real GPU timestamp and write it here instead of
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// CoreTiming
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block.timestamp = system.CoreTiming().GetTicks();
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block.timestamp = GetTicks();
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memory_manager->WriteBlock(regs.semaphore_address.SemaphoreAddress(), &block,
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sizeof(block));
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} else {
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