GPU: support printing frequency in MHz

src/detection/gpu/gpu.h

@@ -5,7 +5,7 @@
 #define FF_GPU_TEMP_UNSET (0/0.0)
 #define FF_GPU_CORE_COUNT_UNSET -1
 #define FF_GPU_VMEM_SIZE_UNSET ((uint64_t)-1)
-#define FF_GPU_FREQUENCY_UNSET (0/0.0)
+#define FF_GPU_FREQUENCY_UNSET 0
 
 extern const char* FF_GPU_VENDOR_NAME_APPLE;
 extern const char* FF_GPU_VENDOR_NAME_AMD;
@@ -32,7 +32,7 @@ typedef struct FFGPUResult
     FFstrbuf platformApi;
     double temperature;
     int32_t coreCount;
-    double frequency; // Maximum time clock frequency in GHz
+    uint32_t frequency; // Maximum time clock frequency in MHz
     FFGPUMemory dedicated;
     FFGPUMemory shared;
     uint64_t deviceId; // Used internally, may be uninitialized

src/detection/gpu/gpu_amd.c

@@ -60,7 +60,7 @@ const char* ffDetectAmdGpuInfo(const FFGpuDriverCondition* cond, FFGpuDriverResu
     }
 
     if (result.frequency)
-        *result.frequency = device->coreClock / 1000.; // Maximum frequency
+        *result.frequency = (uint32_t) device->coreClock; // Maximum frequency
 
     if (result.type)
         *result.type = device->isAPU ? FF_GPU_TYPE_INTEGRATED : FF_GPU_TYPE_DISCRETE;

src/detection/gpu/gpu_driver_specific.h

@@ -41,7 +41,7 @@ typedef struct FFGpuDriverResult
     FFGPUMemory* memory;
     uint32_t* coreCount;
     FFGPUType* type;
-    double* frequency;
+    uint32_t* frequency;
 } FFGpuDriverResult;
 
 const char* ffDetectNvidiaGpuInfo(const FFGpuDriverCondition* cond, FFGpuDriverResult result, const char* soName);

src/detection/gpu/gpu_intel.c

@@ -191,7 +191,7 @@ const char* ffDetectIntelGpuInfo(const FFGpuDriverCondition* cond, FFGpuDriverRe
                         maxValue = props.max;
                 }
             }
-            *result.frequency = maxValue / 1000;
+            *result.frequency = (uint32_t) (maxValue + 0.5);
         }
     }
 

src/detection/gpu/gpu_linux.c

@@ -152,7 +152,7 @@ static void pciDetectIntelSpecific(FFGPUResult* gpu, FFstrbuf* pciDir, FFstrbuf*
         ffStrbufAppendS(pciDir, "/gt_max_freq_mhz");
     }
     if (ffReadFileBuffer(pciDir->chars, buffer))
-        gpu->frequency = ffStrbufToDouble(buffer) / 1000.0;
+        gpu->frequency = (uint32_t) ffStrbufToUInt(buffer, 0);
 }
 
 static bool loadPciIds(FFstrbuf* pciids)
@@ -346,7 +346,7 @@ FF_MAYBE_UNUSED static const char* detectAsahi(FFlist* gpus, FFstrbuf* buffer, F
         }) >= 0)
         {
             gpu->coreCount = (int) paramsGlobal.num_cores_total_active;
-            gpu->frequency = paramsGlobal.max_frequency_khz / 1e6;
+            gpu->frequency = paramsGlobal.max_frequency_khz / 1000;
             gpu->deviceId = paramsGlobal.chip_id;
         }
     }

src/detection/gpu/gpu_nvidia.c

@@ -122,11 +122,7 @@ const char* ffDetectNvidiaGpuInfo(const FFGpuDriverCondition* cond, FFGpuDriverR
         nvmlData.ffnvmlDeviceGetNumGpuCores(device, result.coreCount);
 
     if (result.frequency)
-    {
-        uint32_t clockMHz;
-        if (nvmlData.ffnvmlDeviceGetMaxClockInfo(device, NVML_CLOCK_GRAPHICS, &clockMHz) == NVML_SUCCESS)
-            *result.frequency = clockMHz / 1000.;
-    }
+        nvmlData.ffnvmlDeviceGetMaxClockInfo(device, NVML_CLOCK_GRAPHICS, result.frequency);
 
     return NULL;