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GPU (Linux): add temp detection for Intel GPU

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This commit is contained in:
李通洲
2025-04-14 15:32:31 +08:00
committed by Carter Li
parent bcc6492115
commit 3320532668
1 changed files with 37 additions and 3 deletions
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src/detection/gpu/gpu_linux.c
+37 -3
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@@ -228,7 +228,7 @@ static void pciDetectAmdSpecific(const FFGPUOptions* options, FFGPUResult* gpu,
}
}
static void pciDetectIntelSpecific(FFGPUResult* gpu, FFstrbuf* pciDir, FFstrbuf* buffer, const char* drmKey)
static void pciDetectIntelSpecific(const FFGPUOptions* options, FFGPUResult* gpu, FFstrbuf* pciDir, FFstrbuf* buffer, const char* drmKey)
{
// Works for Intel GPUs
// https://patchwork.kernel.org/project/intel-gfx/patch/1422039866-11572-3-git-send-email-ville.syrjala@linux.intel.com/
@@ -238,12 +238,46 @@ static void pciDetectIntelSpecific(FFGPUResult* gpu, FFstrbuf* pciDir, FFstrbuf*
if (!drmKey) return;
if (ffStrbufEqualS(&gpu->driver, "xe"))
const uint32_t pciDirLen = pciDir->length;
bool isXE = ffStrbufEqualS(&gpu->driver, "xe");
if (isXE)
ffStrbufAppendS(pciDir, "/tile0/gt0/freq0/max_freq");
else
ffStrbufAppendF(pciDir, "/drm/%s/gt_max_freq_mhz", drmKey);
if (ffReadFileBuffer(pciDir->chars, buffer))
gpu->frequency = (uint32_t) ffStrbufToUInt(buffer, 0);
ffStrbufSubstrBefore(pciDir, pciDirLen);
if (options->temp)
{
ffStrbufAppendS(pciDir, "/hwmon/");
FF_AUTO_CLOSE_DIR DIR* dirp = opendir(pciDir->chars);
if (dirp)
{
struct dirent* entry;
while ((entry = readdir(dirp)) != NULL)
{
if (entry->d_name[0] == '.') continue;
ffStrbufSubstrBefore(pciDir, pciDirLen + strlen("/hwmon/"));
ffStrbufAppendS(pciDir, entry->d_name);
// https://github.com/Syllo/nvtop/blob/73291884d926445e499d6b9b71cb7a9bdbc7c393/src/extract_gpuinfo_intel.c#L279-L281
ffStrbufAppendS(pciDir, isXE ? "/temp2_input" : "/temp1_input");
if (ffReadFileBuffer(pciDir->chars, buffer))
{
uint64_t value = ffStrbufToUInt(buffer, 0);
if (value > 0)
{
gpu->temperature = (double) value / 1000;
break;
}
}
}
}
ffStrbufSubstrBefore(pciDir, pciDirLen);
}
}
static inline int popcountBytes(uint8_t* bytes, uint32_t length)
@@ -500,7 +534,7 @@ static const char* detectPci(const FFGPUOptions* options, FFlist* gpus, FFstrbuf
}
else if (gpu->vendor.chars == FF_GPU_VENDOR_NAME_INTEL)
{
pciDetectIntelSpecific(gpu, deviceDir, buffer, drmKey);
pciDetectIntelSpecific(options, gpu, deviceDir, buffer, drmKey);
ffStrbufSubstrBefore(deviceDir, drmDirPathLength);
if (options->driverSpecific && drmKey)
drmDetectIntelSpecific(gpu, drmKey, buffer);