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GPU (Linux): improve Intel GPU detection code

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This commit is contained in:
李通洲
2024-05-19 18:40:32 +08:00
parent 27aa5c0343
commit 09ffd32144
1 changed files with 14 additions and 12 deletions
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src/detection/gpu/gpu_linux.c
+14 -12
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@@ -100,24 +100,26 @@ static void pciDetectAmdSpecific(const FFGPUOptions* options, FFGPUResult* gpu,
static void pciDetectIntelSpecific(FFGPUResult* gpu, FFstrbuf* pciDir, FFstrbuf* buffer)
{
if (!ffStrbufEndsWithS(pciDir, "/device")) // Must be in `/sys/class/drm/cardN/device`
return;
// Works for Intel GPUs
// https://patchwork.kernel.org/project/intel-gfx/patch/1422039866-11572-3-git-send-email-ville.syrjala@linux.intel.com/
ffStrbufSetNS(buffer, pciDir->length - (uint32_t) strlen("device"), pciDir->chars);
ffStrbufAppendS(buffer, "gt_max_freq_mhz");
char str[16];
ssize_t len = ffReadFileData(buffer->chars, sizeof(str) - 1, str);
if (len > 1)
{
str[len] = '\0';
gpu->frequency = (double) strtoul(str, NULL, 10) / 1000.0;
}
if (ffStrbufStartsWithS(&gpu->name, "Intel "))
ffStrbufSubstrAfter(&gpu->name, (uint32_t) strlen("Intel "));
gpu->type = ffStrbufStartsWithIgnCaseS(&gpu->name, "Arc ") ? FF_GPU_TYPE_DISCRETE : FF_GPU_TYPE_INTEGRATED;
ffStrbufAppendS(pciDir, "/drm/");
FF_AUTO_CLOSE_DIR DIR* dirp = opendir(pciDir->chars);
if (!dirp) return;
struct dirent* entry;
while ((entry = readdir(dirp)) != NULL)
{
if (ffStrStartsWith(entry->d_name, "card")) break;
}
if (!entry) return;
ffStrbufAppendS(pciDir, entry->d_name);
ffStrbufAppendS(pciDir, "/gt_max_freq_mhz");
if (ffReadFileBuffer(pciDir->chars, buffer))
gpu->frequency = ffStrbufToDouble(buffer) / 1000.0;
}
static bool loadPciIds(FFstrbuf* pciids)