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GPU: detects PCIe speed only in driverSpecific mode

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Fixes #2419
This commit is contained in:
Carter Li
2026-06-27 08:13:00 +08:00
committed by 李通洲
parent e3dfeeb8db
commit a3184601dc
3 changed files with 82 additions and 66 deletions
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src/detection/gpu/gpu_linux.c
+32 -30
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@@ -410,34 +410,6 @@ static const char* detectPci(const FFGPUOptions* options, FFlist* gpus, FFstrbuf
pciDetectDriver(&gpu->driver, deviceDir, buffer, drmKey);
ffStrbufSubstrBefore(deviceDir, drmDirPathLength);
ffStrbufAppendS(deviceDir, "/max_link_speed");
if (ffReadFileBuffer(deviceDir->chars, buffer)) {
gpu->psMax.gen = pcieLinkSpeedToGen(buffer);
}
ffStrbufSubstrBefore(deviceDir, drmDirPathLength);
if (gpu->psMax.gen != FF_GPU_PCIE_SPEED_UNSET) {
ffStrbufAppendS(deviceDir, "/max_link_width");
if (ffReadFileBuffer(deviceDir->chars, buffer)) {
gpu->psMax.lanes = pcieWidthToLanes(buffer);
}
ffStrbufSubstrBefore(deviceDir, drmDirPathLength);
}
ffStrbufAppendS(deviceDir, "/current_link_speed");
if (ffReadFileBuffer(deviceDir->chars, buffer)) {
gpu->psCurr.gen = pcieLinkSpeedToGen(buffer);
}
ffStrbufSubstrBefore(deviceDir, drmDirPathLength);
if (gpu->psCurr.gen != FF_GPU_PCIE_SPEED_UNSET) {
ffStrbufAppendS(deviceDir, "/current_link_width");
if (ffReadFileBuffer(deviceDir->chars, buffer)) {
gpu->psCurr.lanes = pcieWidthToLanes(buffer);
}
ffStrbufSubstrBefore(deviceDir, drmDirPathLength);
}
if (gpu->vendor.chars == FF_GPU_VENDOR_NAME_AMD) {
bool ok = false;
if (drmKey && options->driverSpecific) {
@@ -473,7 +445,7 @@ static const char* detectPci(const FFGPUOptions* options, FFlist* gpus, FFstrbuf
pciDetectTempGeneral(options, gpu, deviceDir, buffer);
pciDetectZxSpecific(options, gpu, deviceDir, buffer);
} else {
ffGPUDetectDriverSpecific(options, gpu, (FFGpuDriverPciBusId) {
ffGPUDetectDriverSpecific(options, gpu, (FFGpuDriverPciBusId){
.domain = pciDomain,
.bus = pciBus,
.device = pciDevice,
@@ -487,11 +459,41 @@ static const char* detectPci(const FFGPUOptions* options, FFlist* gpus, FFstrbuf
ffGPUFillVendorByDeviceName(gpu);
if (options->driverSpecific && gpu->pcieSpeed == FF_GPU_PCIE_SPEED_UNSET) {
ffStrbufAppendS(deviceDir, "/max_link_speed");
if (ffReadFileBuffer(deviceDir->chars, buffer)) {
gpu->psMax.gen = pcieLinkSpeedToGen(buffer);
}
ffStrbufSubstrBefore(deviceDir, drmDirPathLength);
if (gpu->psMax.gen != FF_GPU_PCIE_SPEED_UNSET) {
ffStrbufAppendS(deviceDir, "/max_link_width");
if (ffReadFileBuffer(deviceDir->chars, buffer)) {
gpu->psMax.lanes = pcieWidthToLanes(buffer);
}
ffStrbufSubstrBefore(deviceDir, drmDirPathLength);
}
ffStrbufAppendS(deviceDir, "/current_link_speed");
if (ffReadFileBuffer(deviceDir->chars, buffer)) {
gpu->psCurr.gen = pcieLinkSpeedToGen(buffer);
}
ffStrbufSubstrBefore(deviceDir, drmDirPathLength);
if (gpu->psCurr.gen != FF_GPU_PCIE_SPEED_UNSET) {
ffStrbufAppendS(deviceDir, "/current_link_width");
if (ffReadFileBuffer(deviceDir->chars, buffer)) {
gpu->psCurr.lanes = pcieWidthToLanes(buffer);
}
ffStrbufSubstrBefore(deviceDir, drmDirPathLength);
}
}
return NULL;
}
#if __aarch64__
#include "detection/cpu/cpu.h"
#include "detection/cpu/cpu.h"
FF_A_UNUSED static const char* drmDetectAsahiSpecific(FFGPUResult* gpu, const char* name, FF_A_UNUSED FFstrbuf* buffer, FF_A_UNUSED const char* drmKey) {
if (sscanf(name, "agx-t%lu", &gpu->deviceId) == 1) {