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tinygrad/extra/amdpci/hive_reset.py
2026-03-16 14:45:43 +08:00

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#!/usr/bin/env python3
import os
from tinygrad.helpers import Context
from tinygrad.runtime.support.system import System, PCIDevice
from tinygrad.runtime.support.hcq import FileIOInterface
from tinygrad.runtime.support.am.amdev import AMDev
if __name__ == "__main__":
gpus = System.pci_scan_bus(0x1002, [(0xffff, [0x74a1, 0x75a0])])
for gpu in gpus:
drv_path = f"/sys/bus/pci/devices/{gpu}/driver"
if FileIOInterface.exists(drv_path) and os.path.basename(os.readlink(drv_path)) == "amdgpu":
raise RuntimeError(f"amdgpu is bound to {gpu}. Stopping...")
pcidevs = [PCIDevice("AM", gpu) for gpu in gpus]
amdevs = []
with Context(DEBUG=2):
for pcidev in pcidevs:
amdevs.append(AMDev(pcidev, reset_mode=True))
for amdev in amdevs: amdev.smu.mode1_reset()