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authorGravatar bunnei2023-06-21 21:12:46 -0700
committerGravatar GitHub2023-06-21 21:12:46 -0700
commite3122c5b468fd59b7eded5a3a7300643d05616bc (patch)
tree3fe4c2c0bea83f3bb8849ef8839b9520873d41c2 /src/video_core/gpu.cpp
parentMerge pull request #10777 from liamwhite/no-barrier (diff)
parentnvdisp: Fix SingleCore frametime reporting (diff)
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Merge pull request #10086 from Morph1984/coretiming-ng-1
core_timing: Use CNTPCT as the guest CPU tick
Diffstat (limited to 'src/video_core/gpu.cpp')
-rw-r--r--src/video_core/gpu.cpp13
1 files changed, 4 insertions, 9 deletions
diff --git a/src/video_core/gpu.cpp b/src/video_core/gpu.cpp
index 456f733cf..db385076d 100644
--- a/src/video_core/gpu.cpp
+++ b/src/video_core/gpu.cpp
@@ -193,18 +193,13 @@ struct GPU::Impl {
193 } 193 }
194 194
195 [[nodiscard]] u64 GetTicks() const { 195 [[nodiscard]] u64 GetTicks() const {
196 // This values were reversed engineered by fincs from NVN 196 u64 gpu_tick = system.CoreTiming().GetGPUTicks();
197 // The gpu clock is reported in units of 385/625 nanoseconds
198 constexpr u64 gpu_ticks_num = 384;
199 constexpr u64 gpu_ticks_den = 625;
200 197
201 u64 nanoseconds = system.CoreTiming().GetCPUTimeNs().count();
202 if (Settings::values.use_fast_gpu_time.GetValue()) { 198 if (Settings::values.use_fast_gpu_time.GetValue()) {
203 nanoseconds /= 256; 199 gpu_tick /= 256;
204 } 200 }
205 const u64 nanoseconds_num = nanoseconds / gpu_ticks_den; 201
206 const u64 nanoseconds_rem = nanoseconds % gpu_ticks_den; 202 return gpu_tick;
207 return nanoseconds_num * gpu_ticks_num + (nanoseconds_rem * gpu_ticks_num) / gpu_ticks_den;
208 } 203 }
209 204
210 [[nodiscard]] bool IsAsync() const { 205 [[nodiscard]] bool IsAsync() const {