IQ.Pilot Prebuilt Release @ 658635c

2026-07-28 20:43:30 -05:00
commit 14c7cfd019
3707 changed files with 776448 additions and 0 deletions
--- a/tinygrad_repo/extra/usbgpu/.gitignore
+++ b/tinygrad_repo/extra/usbgpu/.gitignore
@@ -0,0 +1,2 @@
+Software/
+fw.zip
--- a/tinygrad_repo/extra/usbgpu/debug.py
+++ b/tinygrad_repo/extra/usbgpu/debug.py
@@ -0,0 +1,102 @@
+#!/usr/bin/env python3
+
+import sys
+import time
+from argparse import ArgumentParser
+
+from pyftdi.ftdi import Ftdi
+from pyftdi.eeprom import FtdiEeprom
+from pyftdi.misc import hexdump
+
+class USBGPUDebug:
+  CBUS_RESET = (1 << 2)
+  CBUS_BOOTLOADER = (1 << 1)
+
+  def __init__(self, device_url: str = 'ftdi://ftdi:230x/1'):
+    self.device_url = device_url
+    self.ftdi = None
+    self.eeprom = None
+    self.provisioned = False
+
+  def __enter__(self):
+    self.open()
+    return self
+
+  def __exit__(self, exc_type, exc_value, traceback):
+    self.close()
+
+  def open(self):
+    self.ftdi = Ftdi()
+    self.ftdi.open_from_url(self.device_url)
+    self.ftdi.set_baudrate(921600)
+    self.ftdi.set_line_property(8, 1, 'N')
+
+    self.eeprom = FtdiEeprom()
+    self.eeprom.connect(self.ftdi)
+
+    self.provisioned = (self.eeprom.cbus_func_1 == "GPIO" and self.eeprom.cbus_func_2 == "GPIO")
+
+    if not self.provisioned:
+      print("Warning: Device not provisioned for usbgpu debugging. Use --provision to provision it.")
+      return
+
+    # setup gpio for reset control
+    self.ftdi.set_cbus_direction(self.CBUS_RESET | self.CBUS_BOOTLOADER, self.CBUS_RESET | self.CBUS_BOOTLOADER)
+    self.ftdi.set_cbus_gpio(0x00)
+
+  def close(self):
+    self.ftdi.close()
+
+  def provision(self):
+    print("Provisioning FTDI device for usbgpu debugging...")
+    self.eeprom.set_property('cbus_func_1', 'GPIO')
+    self.eeprom.set_property('cbus_func_2', 'GPIO')
+    if self.eeprom.commit(dry_run=False):
+      self.eeprom.reset_device()
+    self.ftdi.reset()
+    self.provisioned = True
+    print("Provisioning complete.")
+
+  def reset(self, bootloader=False):
+    if not self.provisioned:
+      raise RuntimeError("Device not provisioned for usbgpu debugging. Use --provision to provision it.")
+
+    self.ftdi.set_cbus_gpio(self.CBUS_RESET | (self.CBUS_BOOTLOADER if bootloader else 0))
+    time.sleep(0.5)
+    self.ftdi.set_cbus_gpio(self.CBUS_BOOTLOADER if bootloader else 0)
+    if bootloader:
+      time.sleep(1)
+      self.ftdi.set_cbus_gpio(0)
+    print("Device reset complete.")
+
+  def read(self) -> bytes:
+    return self.ftdi.read_data(256).decode('utf-8', errors='replace')
+
+
+if __name__ == "__main__":
+  args = ArgumentParser()
+  args.add_argument('--device', '-d', type=str, default='ftdi://ftdi:230x/1', help="FTDI device URL")
+  args.add_argument('--provision', '-p', action='store_true', default=False, help="Provision the connected FTDI for usbgpu debugging")
+  args.add_argument('--reset', '-r', action='store_true', default=False, help="Reset the device")
+  args.add_argument('--bootloader', '-b', action='store_true', default=False, help="Reset to bootloader")
+  args.add_argument('--no-read', '-n', action='store_true', default=False, help="Do not read debug output")
+
+  args = args.parse_args()
+
+  with USBGPUDebug(args.device) as dbg:
+    if args.provision:
+      dbg.provision()
+
+    if args.reset:
+      dbg.reset(bootloader=False)
+
+    if args.bootloader:
+      dbg.reset(bootloader=True)
+
+    if not args.no_read:
+      print("Starting debug output. Press Ctrl-C to exit.\n------")
+      while True:
+        sys.stdout.write(dbg.read())
+        sys.stdout.flush()
+        time.sleep(0.001)
+
--- a/tinygrad_repo/extra/usbgpu/legacy/nvme_speed.py
+++ b/tinygrad_repo/extra/usbgpu/legacy/nvme_speed.py
@@ -0,0 +1,23 @@
+import array, time, ctypes, struct, random
+from hexdump import hexdump
+from tinygrad.runtime.support.usb import ASM24Controller, WriteOp, ScsiWriteOp
+from tinygrad.runtime.autogen import pci
+from tinygrad.helpers import Timing
+from tinygrad import Device
+
+usb = ASM24Controller()
+
+def real_scsi_write():
+  self.exec_ops([ScsiWriteOp(buf, lba)])
+
+for i in range(256):
+  xxx = (ctypes.c_uint8 * 4096)()
+  dfg = random.randint(0, 255)
+  for i in range(len(xxx)): xxx[i] = dfg
+  # print(dfg, usb.read(0xf000, 0x10))
+  st = time.perf_counter_ns()
+  usb.scsi_write(bytes(xxx), lba=0x1000 + i)
+  en = time.perf_counter_ns()
+  print("mb/s is ", (0x1000) / (en - st) * 1e9 / 1024 / 1024)
+
+exit(0)
--- a/tinygrad_repo/extra/usbgpu/legacy/patch_exp.py
+++ b/tinygrad_repo/extra/usbgpu/legacy/patch_exp.py
@@ -0,0 +1,88 @@
+#!/usr/bin/env python3
+import sys
+import zlib
+
+def patch(input_filepath, output_filepath, patches):
+  with open(input_filepath, 'rb') as infile: data = bytearray(infile.read())
+
+  for offset, expected_bytes, new_bytes in patches:
+    if len(expected_bytes) != len(new_bytes):
+      print(len(expected_bytes), len(new_bytes))
+      raise ValueError("Expected bytes and new bytes must be the same length")
+
+    if offset + len(new_bytes) > len(data): return False
+    current_bytes = data[offset:offset + len(expected_bytes)]
+    assert bytes(current_bytes) == expected_bytes, f"Expected {expected_bytes} at offset {offset:x}, but got {current_bytes}"
+    data[offset:offset + len(new_bytes)] = new_bytes
+
+  checksum = sum(data[4:-6]) & 0xff
+  crc32 = zlib.crc32(data[4:-6]).to_bytes(4, 'little')
+  data[-5] = checksum
+  data[-4] = crc32[0]
+  data[-3] = crc32[1]
+  data[-2] = crc32[2]
+  data[-1] = crc32[3]
+
+  with open(output_filepath, 'wb') as outfile:
+    outfile.write(data)
+
+  return True
+
+patches = [
+  # (0x3903 + 1 + 4, b'\x8a', b'\x8b'),
+  # (0x3cf9 + 1 + 4, b'\x8a', b'\x8b'), # this is the one which triggered...
+
+  (0x2a0d + 1 + 4, b'\x0a', b'\x05'), # write handle exit with code 5 (?)
+  # (0x40e1 + 4, b'\x90\x06\xe6\x04\xf0\x78\x0d\xe6\xfe\x24\x71\x12\x1b\x0b\x60\x0b\x74\x08', b'\x7f\x00\x12\x53\x21\x12\x1c\xfc\x74\x01\xf6\x90\x90\x94\x74\x10\xf0\x22')
+  # (0x29ad + 1 + 4, b'\x09', b'\x05'), # write handle exit with code 5 (?)
+  # (0x40ef + 0 + 4, b'\x60', b'\x70'), # jz -> jnz
+  # (0x40e1 + 0 + 4, b'\x90', b'\x22'), # jmp -> ret
+  # (0x40fa + 0 + 4, b'\x80', b'\x22'),
+  # (0x40e1 + 0 + 4, b'\x90\x06\xe6\x04\xf0', b'\x7f\x00\x02\x41\x7c'), # jmp -> ret
+]
+
+next_traphandler = 0
+def add_traphandler(addr, sec):
+  global next_traphandler, patches
+
+  trap_addr = 0x6000 + next_traphandler * 0x20
+  return_addr = addr + len(sec)
+  cntr_addr = 0x3000 + next_traphandler
+  patches += [
+    (addr + 4, sec, b'\x02' + trap_addr.to_bytes(2, 'big') + b'\x22'*(len(sec)-3)),
+    (trap_addr + 4, b'\x00' * (21 + len(sec)),
+      b'\xc0\xe0\xc0\x82\xc0\x83\x90' + cntr_addr.to_bytes(2, 'big') + b'\xe0\x04\xf0\xd0\x83\xd0\x82\xd0\xe0' + sec + b'\x02' + return_addr.to_bytes(2, 'big')),
+  ]
+  next_traphandler += 1
+
+# add_traphandler(0x0206, b'\xed\x54\x06') # fill_scsi_resp
+# add_traphandler(0x40d9, b'\x78\x6a\xe6') # fill_scsi_to_usb_transport
+# add_traphandler(0x4d44, b'\x78\x6a\xe6') # FUN_CODE_4d44
+# add_traphandler(0x4784, b'\x78\x6a\xe6') # FUN_CODE_4784
+# add_traphandler(0x3e81, b'\x90\xc5\x16') # FUN_CODE_3e81
+# add_traphandler(0x32a5, b'\x78\x6a\xe6') # FUN_CODE_32a5
+# add_traphandler(0x2a10, b'\x90\xc4\x51') # FUN_CODE_2a10
+# add_traphandler(0x2608, b'\x12\x16\x87') # FUN_CODE_2608
+# add_traphandler(0x0e78, b'\x90\xc8\x02') # main usb entry
+# add_traphandler(0x102f, b'\x12\x18\x0d') # possible scsi entry parser
+# add_traphandler(0x1198, b'\x12\x18\x0d') # close_to_scsi_parse_1_and_set_c47a_to_0xff caller to scsi
+# add_traphandler(0x180d, b'\x90\x0a\x7d') # close_to_scsi_parse
+# add_traphandler(0x1114, b'\x75\x37\x00') # entry into if ((DAT_EXTMEM_c802 >> 2 & 1) != 0) { in main usb entry
+# add_traphandler(0x113a, b'\x90\x90\x00') # exit from scsi parse loop
+# add_traphandler(0x117b, b'\xd0\x07\xd0\x06') # exit from main usb entry
+
+
+# add_traphandler(0x2f81, b'\x90\x0a\x59') # main loop? 8
+# add_traphandler(0xc7a7, b'\x90\x09\xfa') # call smth in write path 9
+# add_traphandler(0x2fcb, b'\x90\x0a\x59') # if ((DAT_EXTMEM_0ae2 != 0) && (DAT_EXTMEM_0ae2 != 0x10)) {
+# add_traphandler(0x2fc0, b'\x90\x0a\xe2') # submain loop 11
+# add_traphandler(0x30be, b'\x90\x0a\x5a') # aft sub loop 12
+# add_traphandler(0x3076, b'\x12\x03\x59') # call to call_wait_for_nvme??(); 13
+# add_traphandler(0x30ad, b'\x12\x04\xe4') # call to call_wait_for_nvme??(); 14
+
+# add_traphandler(0x2608, b'\x12\x16\x87') # FUN_CODE_2608
+# add_traphandler(0x10ee, b'\x90\x04\x64') # iniside trap handler
+# add_traphandler(0x10e0, b'\x90\xc8\x06') # iniside trap handler
+# add_traphandler(0x4977, b'\x90\x0a\xa8') # waiter for nvme???
+
+assert patch(sys.argv[1], sys.argv[2], patches) is True
--- a/tinygrad_repo/extra/usbgpu/legacy/wr_speed.py
+++ b/tinygrad_repo/extra/usbgpu/legacy/wr_speed.py
@@ -0,0 +1,22 @@
+import array, time, ctypes, struct, random
+from hexdump import hexdump
+from tinygrad.runtime.support.usb import ASMController, WriteOp
+from tinygrad.runtime.autogen import pci
+from tinygrad.helpers import Timing
+from tinygrad import Device
+
+usb = ASMController()
+
+xxx = (ctypes.c_uint8 * 4096)()
+dfg = random.randint(0, 255)
+for i in range(len(xxx)): xxx[i] = dfg
+
+print(dfg, usb.read(0xf000, 0x10))
+
+with Timing():
+  for i in range(64): usb.scsi_write(xxx)
+
+with Timing():
+  for i in range(64): usb.read(0xf000, 0x1000)
+
+exit(0)
--- a/tinygrad_repo/extra/usbgpu/patch.py
+++ b/tinygrad_repo/extra/usbgpu/patch.py
@@ -0,0 +1,98 @@
+#!/usr/bin/env python3
+import os, zlib, struct, hashlib
+from tinygrad.helpers import getenv
+from tinygrad.runtime.support.usb import USB3
+
+SUPPORTED_CONTROLLERS = [
+  (0x174C, 0x2464),
+  (0x174C, 0x2463),
+  (0xADD1, 0x0001),
+]
+if getenv("USBDEV", ""): SUPPORTED_CONTROLLERS.insert(0, (int(x, 16) for x in getenv("USBDEV", "").split(":")))
+
+def patch(input_filepath, file_hash, patches):
+  with open(input_filepath, 'rb') as infile: data = bytearray(infile.read())
+
+  if_hash = hashlib.md5(data).hexdigest()
+  if if_hash != file_hash:
+    raise ValueError(f"File hash mismatch: expected {file_hash}, got {if_hash}")
+
+  for offset, expected_bytes, new_bytes in patches:
+    if len(expected_bytes) != len(new_bytes):
+      raise ValueError("Expected bytes and new bytes must be the same length")
+
+    if offset + len(new_bytes) > len(data): return False
+    current_bytes = data[offset:offset + len(expected_bytes)]
+    assert bytes(current_bytes) == expected_bytes, f"Expected {expected_bytes} at offset {offset:x}, but got {current_bytes}"
+    data[offset:offset + len(new_bytes)] = new_bytes
+
+  checksum = sum(data[4:-6]) & 0xff
+  crc32 = zlib.crc32(data[4:-6]).to_bytes(4, 'little')
+  data[-5] = checksum
+  data[-4] = crc32[0]
+  data[-3] = crc32[1]
+  data[-2] = crc32[2]
+  data[-1] = crc32[3]
+  return data
+
+path = os.path.dirname(os.path.abspath(__file__))
+file_hash = "5284e618d96ef804c06f47f3b73656b7"
+file_path = os.path.join(path, "Software/AS_USB4_240417_85_00_00.bin")
+
+if not os.path.exists(file_path):
+  url = "https://web.archive.org/web/20250430124720/https://www.station-drivers.com/index.php/en/component/remository/func-download/6341/chk,3ef8b04704a18eb2fc57ff60382379ad/no_html,1/lang,en-gb/"
+  os.system(f'curl -o "{path}/fw.zip" "{url}"')
+  os.system(f'unzip -o "{path}/fw.zip" "Software/AS_USB4_240417_85_00_00.bin" -d "{path}"')
+
+patches = [(0x2a0d + 1 + 4, b'\x0a', b'\x05')]
+patched_fw = patch(file_path, file_hash, patches)
+
+dev = None
+for vendor, device in SUPPORTED_CONTROLLERS:
+  try:
+    dev = USB3(vendor, device, 0x81, 0x83, 0x02, 0x04, use_bot=True)
+    break
+  except RuntimeError: pass
+if dev is None:
+  raise RuntimeError('Could not open controller. You can set USBDEV environment variable to your device\'s vendor and device ID (e.g., USBDEV="174C:2464")')
+
+config1 = bytes([
+  0xFF, 0xFF, 0xFF, 0xFF, 0x41, 0x41, 0x41, 0x41, 0x42, 0x42, 0x42, 0x42, 0x30, 0x30, 0x36, 0x30,
+  0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x74, 0x69, 0x6E, 0x79, 0xFF, 0xFF, 0xFF, 0xFF,
+  0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+  0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x74, 0x69, 0x6E, 0x79,
+  0xFF, 0xFF, 0xFF, 0xFF, 0x55, 0x53, 0x42, 0x20, 0x33, 0x2E, 0x32, 0x20, 0x50, 0x43, 0x49, 0x65,
+  0x20, 0x54, 0x69, 0x6E, 0x79, 0x45, 0x6E, 0x63, 0x6C, 0x6F, 0x73, 0x75, 0x72, 0x65, 0xFF, 0xFF,
+  0xFF, 0xFF, 0xFF, 0xFF, 0x54, 0x69, 0x6E, 0x79, 0x45, 0x6E, 0x63, 0x6C, 0x6F, 0x73, 0x75, 0x72,
+  0x65, 0xFF, 0xFF, 0xFF, 0xD1, 0xAD, 0x01, 0x00, 0x00, 0x01, 0xCF, 0xFF, 0x02, 0xFF, 0x5A, 0x94])
+
+config2 = bytes([
+  0xFF, 0xFF, 0xFF, 0xFF, 0x47, 0x6F, 0x70, 0x6F, 0x64, 0x20, 0x47, 0x72, 0x6F, 0x75, 0x70, 0x20,
+  0x4C, 0x69, 0x6D, 0x69, 0x74, 0x65, 0x64, 0x2E, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+  0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x55, 0x53, 0x42, 0x34,
+  0x20, 0x4E, 0x56, 0x4D, 0x65, 0x20, 0x53, 0x53, 0x44, 0x20, 0x50, 0x72, 0x6F, 0x20, 0x45, 0x6E,
+  0x63, 0x6C, 0x6F, 0x73, 0x75, 0x72, 0x65, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+  0xFF, 0xFF, 0xFF, 0xFF, 0x8C, 0xBF, 0xFF, 0x97, 0xC1, 0xF3, 0xFF, 0xFF, 0x01, 0x2D, 0x66, 0xD6,
+  0x66, 0x06, 0x00, 0xC0, 0x87, 0x01, 0x5A, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xCA, 0x01, 0x66, 0xD6,
+  0xE3, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0xFF, 0xFF, 0x01, 0x00, 0xA5, 0x67])
+
+part1 = patched_fw[:0xff00]
+part2 = patched_fw[0xff00:]
+
+# config patch
+cdb = struct.pack('>BBB12x', 0xe1, 0x50, 0x0)
+dev.send_batch(cdbs=[cdb], odata=[config1])
+
+cdb = struct.pack('>BBB12x', 0xe1, 0x50, 0x1)
+dev.send_batch(cdbs=[cdb], odata=[config2])
+
+cdb = struct.pack('>BBI', 0xe3, 0x50, len(part1))
+dev.send_batch(cdbs=[cdb], odata=[part1])
+
+cdb = struct.pack('>BBI', 0xe3, 0xd0, len(part2))
+dev.send_batch(cdbs=[cdb], odata=[part2])
+
+cdb = struct.pack('>BB13x', 0xe8, 0x51)
+dev.send_batch(cdbs=[cdb])
+
+print("done, you can disconnect the controller!")
--- a/tinygrad_repo/extra/usbgpu/scan_pci.py
+++ b/tinygrad_repo/extra/usbgpu/scan_pci.py
@@ -0,0 +1,67 @@
+import array, time
+from hexdump import hexdump
+from tinygrad.runtime.support.usb import ASM24Controller
+from tinygrad.runtime.autogen import pci
+
+usb = ASM24Controller()
+
+def print_cfg(bus, dev):
+  cfg = []
+  for i in range(0, 256, 4):
+    cfg.append(usb.pcie_cfg_req(i, bus=bus, dev=dev, fn=0, value=None, size=4))
+
+  print("bus={}, dev={}".format(bus, dev))
+  dmp = bytearray(array.array('I', cfg))
+  hexdump(dmp)
+  return dmp
+
+def rescan_bus(bus, gpu_bus):
+  print("set PCI_SUBORDINATE_BUS bus={} to {}".format(bus, gpu_bus))
+  usb.pcie_cfg_req(pci.PCI_SUBORDINATE_BUS, bus=bus, dev=0, fn=0, value=gpu_bus, size=1)
+  usb.pcie_cfg_req(pci.PCI_SECONDARY_BUS, bus=bus, dev=0, fn=0, value=bus+1, size=1)
+  usb.pcie_cfg_req(pci.PCI_PRIMARY_BUS, bus=bus, dev=0, fn=0, value=max(0, bus-1), size=1)
+
+  print("rescan bus={}".format(bus))
+  usb.pcie_cfg_req(pci.PCI_BRIDGE_CONTROL, bus=bus, dev=0, fn=0, value=pci.PCI_BRIDGE_CTL_BUS_RESET, size=1)
+  time.sleep(0.1)
+  usb.pcie_cfg_req(pci.PCI_BRIDGE_CONTROL, bus=bus, dev=0, fn=0, value=pci.PCI_BRIDGE_CTL_PARITY|pci.PCI_BRIDGE_CTL_SERR, size=1)
+
+  usb.pcie_cfg_req(pci.PCI_MEMORY_BASE, bus=bus, dev=0, fn=0, value=0x1000, size=2)
+  usb.pcie_cfg_req(pci.PCI_MEMORY_LIMIT, bus=bus, dev=0, fn=0, value=0x2000, size=2)
+  usb.pcie_cfg_req(pci.PCI_PREF_MEMORY_BASE, bus=bus, dev=0, fn=0, value=0x2000, size=2)
+  usb.pcie_cfg_req(pci.PCI_PREF_MEMORY_LIMIT, bus=bus, dev=0, fn=0, value=0xffff, size=2)
+
+print_cfg(0, 0)
+rescan_bus(0, gpu_bus=4)
+
+print_cfg(1, 0)
+rescan_bus(1, gpu_bus=4)
+
+time.sleep(0.1)
+print_cfg(2, 0)
+
+def setup_bus(bus, gpu_bus):
+  print("setup bus={}".format(bus))
+  usb.pcie_cfg_req(pci.PCI_SUBORDINATE_BUS, bus=bus, dev=0, fn=0, value=gpu_bus, size=1)
+  usb.pcie_cfg_req(pci.PCI_SECONDARY_BUS, bus=bus, dev=0, fn=0, value=bus+1, size=1)
+  usb.pcie_cfg_req(pci.PCI_PRIMARY_BUS, bus=bus, dev=0, fn=0, value=max(0, bus-1), size=1)
+
+  usb.pcie_cfg_req(pci.PCI_BRIDGE_CONTROL, bus=bus, dev=0, fn=0, value=pci.PCI_BRIDGE_CTL_BUS_RESET, size=1)
+  usb.pcie_cfg_req(pci.PCI_BRIDGE_CONTROL, bus=bus, dev=0, fn=0, value=pci.PCI_BRIDGE_CTL_PARITY|pci.PCI_BRIDGE_CTL_SERR, size=1)
+  usb.pcie_cfg_req(pci.PCI_COMMAND, bus=bus, dev=0, fn=0, value=pci.PCI_COMMAND_IO | pci.PCI_COMMAND_MEMORY | pci.PCI_COMMAND_MASTER, size=1)
+
+  usb.pcie_cfg_req(pci.PCI_MEMORY_BASE, bus=bus, dev=0, fn=0, value=0x1000, size=2)
+  usb.pcie_cfg_req(pci.PCI_MEMORY_LIMIT, bus=bus, dev=0, fn=0, value=0x2000, size=2)
+
+  usb.pcie_cfg_req(pci.PCI_PREF_MEMORY_BASE, bus=bus, dev=0, fn=0, value=0x2000, size=2)
+  usb.pcie_cfg_req(pci.PCI_PREF_MEMORY_LIMIT, bus=bus, dev=0, fn=0, value=0xffff, size=2)
+
+setup_bus(2, gpu_bus=4)
+print_cfg(3, 0)
+
+setup_bus(3, gpu_bus=4)
+dmp = print_cfg(4, 0)
+print(dmp[0:4])
+assert dmp[0:4] in (b"\x02\x10\x80\x74", b"\x02\x10\x4c\x74", b"\x02\x10\x50\x75"), "GPU NOT FOUND!"
+
+print("GPU FOUND!")
--- a/tinygrad_repo/extra/usbgpu/tbgpu/install_tinygpu.sh
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/install_tinygpu.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+set -e
+
+APP_PATH="/Applications/TinyGPU.app"
+DEXT_ID="org.tinygrad.tinygpu.driver2"
+
+# Install app if not present. TODO: url
+if [[ ! -d "$APP_PATH" ]]; then
+  echo "TinyGPU.app not found in /Applications"
+  exit 1
+fi
+
+# Ask user to install
+read -n1 -p "Install TinyGPU driver extension now? [y/N] " answer
+echo
+
+if [[ "$answer" =~ ^[Yy]$ ]]; then
+  "$APP_PATH/Contents/MacOS/TinyGPU" install
+else
+  echo "Skipped."
+  exit 0
+fi
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/.gitignore
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/.gitignore
@@ -0,0 +1,13 @@
+xcuserdata/
+
+**/*.xcodeproj/project.xcworkspace/*
+!**/*.xcodeproj/project.xcworkspace/xcshareddata
+
+**/*.xcodeproj/project.xcworkspace/xcshareddata/*
+!**/*.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
+
+**/*.playground/playground.xcworkspace/*
+!**/*.playground/playground.xcworkspace/xcshareddata
+
+**/*.playground/playground.xcworkspace/xcshareddata/*
+!**/*.playground/playground.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/Shared/Assets.xcassets/AccentColor.colorset/Contents.json
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/Shared/Assets.xcassets/AccentColor.colorset/Contents.json
@@ -0,0 +1,11 @@
+{
+  "colors" : [
+    {
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/Shared/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/Shared/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,148 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "20x20"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "20x20"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "29x29"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "29x29"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "40x40"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "40x40"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "60x60"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "60x60"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "20x20"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "20x20"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "29x29"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "29x29"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "40x40"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "40x40"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "76x76"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "76x76"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "83.5x83.5"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "scale" : "1x",
+      "size" : "1024x1024"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "16x16"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "16x16"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "32x32"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "32x32"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "128x128"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "128x128"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "256x256"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "256x256"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "1x",
+      "size" : "512x512"
+    },
+    {
+      "idiom" : "mac",
+      "scale" : "2x",
+      "size" : "512x512"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/Shared/Assets.xcassets/Contents.json
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/Shared/Assets.xcassets/Contents.json
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/Shared/TinyGPUApp.swift
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/Shared/TinyGPUApp.swift
@@ -0,0 +1,48 @@
+import SwiftUI
+
+private let dextID = "org.tinygrad.tinygpu.driver2"
+
+@main
+struct TinyGPUApp: App {
+  private static var runner: TinyGPUCLIRunner?  // prevent dealloc before callback
+  @State private var text = ""
+  @NSApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
+
+  init() {
+    guard CommandLine.arguments.count > 1 else { return }
+    Self.runner = TinyGPUCLIRunner(dextID)
+    Self.runner?.run(args: CommandLine.arguments) { exit($0.rawValue) }
+    dispatchMain()
+  }
+
+  var body: some Scene {
+    WindowGroup("TinyGPU") {
+      ScrollView {
+        Text(text).font(.custom("Menlo", size: 11)).frame(maxWidth: .infinity, alignment: .leading).padding(8)
+      }
+      .frame(width: 500, height: 300).padding()
+      .onAppear { setup() }
+    }
+    .commands { CommandGroup(replacing: .newItem) {} }
+  }
+
+  func setup() {
+    let bundlePath = Bundle.main.bundlePath
+    guard bundlePath.hasPrefix("/Applications/") else {
+      var error: NSDictionary?
+      NSAppleScript(source: "do shell script \"mv '\(bundlePath)' '/Applications/'\" with administrator privileges")?.executeAndReturnError(&error)
+      text = error == nil ? "Moved! Please reopen from /Applications/\n" : "Move TinyGPU to /Applications first.\n"
+      return
+    }
+    let state = TinyGPUCLIRunner.queryDextState(dextID)
+    if state == .unloaded || state == .activating {
+      Self.runner = TinyGPUCLIRunner(dextID)
+      Self.runner?.run(args: ["", "install"]) { _ in }
+    }
+    text = "TinyGPU - Remote PCI Device Server\n\n" + TinyGPUCLIRunner.statusText(state)
+  }
+}
+
+class AppDelegate: NSObject, NSApplicationDelegate {
+  func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool { true }
+}
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/Shared/TinyGPUCLIRunner.swift
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/Shared/TinyGPUCLIRunner.swift
@@ -0,0 +1,122 @@
+import Foundation
+import SystemExtensions
+
+enum TinyGPUCLIExit: Int32 { case ok = 0, usage = 2, failed = 3, needsApproval = 4 }
+enum DextState { case unloaded, activating, needsApproval, activated }
+
+final class TinyGPUCLIRunner: NSObject, OSSystemExtensionRequestDelegate {
+  private let dextID: String
+  private var done: ((TinyGPUCLIExit) -> Void)?
+  private var isInstall = true
+
+  init(_ dextID: String) { self.dextID = dextID }
+
+  static func queryDextState(_ bundleID: String) -> DextState {
+    let p = Process()
+    p.executableURL = URL(fileURLWithPath: "/usr/bin/systemextensionsctl")
+    p.arguments = ["list"]
+    let pipe = Pipe()
+    p.standardOutput = pipe
+    p.standardError = Pipe()
+    guard (try? p.run()) != nil else { return .unloaded }
+    p.waitUntilExit()
+
+    guard let output = String(data: pipe.fileHandleForReading.readDataToEndOfFile(), encoding: .utf8),
+          let line = output.split(separator: "\n").first(where: { $0.contains(bundleID) }) else { return .unloaded }
+    if line.contains("[activated enabled]") { return .activated }
+    if line.contains("[activated waiting for user]") { return .needsApproval }
+    return line.contains("terminated waiting to uninstall") ? .unloaded : .activating
+  }
+
+  private static let approvalHelp = """
+    Please go to System Settings > Privacy & Security and allow the extension.
+
+    If previously disabled: System Settings > General > Login Items & Extensions > Driver Extensions > Toggle TinyGPU ON
+
+    """
+
+  static func statusText(_ state: DextState) -> String {
+    switch state {
+    case .unloaded: return "Driver extension not installed.\n\n"
+    case .activating: return "Extension is activating...\n\n"
+    case .needsApproval: return "Extension awaiting approval.\n\n" + approvalHelp
+    case .activated: return "Extension is ready! Run tinygrad to use your eGPU.\n\n"
+    }
+  }
+
+  func run(args: [String], done: @escaping (TinyGPUCLIExit) -> Void) {
+    self.done = done
+    guard args.count > 1 else { return usage() }
+
+    switch args[1] {
+    case "status":
+      print(Self.statusText(Self.queryDextState(dextID)))
+      done(.ok)
+    case "install":
+      if Self.queryDextState(dextID) == .needsApproval { print(Self.statusText(.needsApproval)); return done(.needsApproval) }
+      print("Installing TinyGPU driver extension...\nYou may need to approve in System Settings.\n")
+      submitRequest(activate: true)
+    case "uninstall":
+      guard Self.queryDextState(dextID) != .unloaded else { print("Not installed.\n"); return done(.ok) }
+      print("Uninstalling TinyGPU driver extension...\n")
+      isInstall = false
+      submitRequest(activate: false)
+    case "server":
+      guard args.count > 2 else { print("Error: server requires socket path\n"); return usage() }
+      done(run_server(args[2]) == 0 ? .ok : .failed)
+    case "help", "-h", "--help":
+      usage(); done(.ok)
+    default:
+      print("Unknown command: \(args[1])\n"); usage()
+    }
+  }
+
+  private func usage() {
+    print("""
+      Usage: TinyGPU <command>
+        status     Show extension status
+        install    Install the driver extension
+        uninstall  Remove the driver extension
+        server <path>  Start server on Unix socket
+      """)
+    done?(.usage)
+  }
+
+  private func submitRequest(activate: Bool) {
+    let req = activate
+      ? OSSystemExtensionRequest.activationRequest(forExtensionWithIdentifier: dextID, queue: .main)
+      : OSSystemExtensionRequest.deactivationRequest(forExtensionWithIdentifier: dextID, queue: .main)
+    req.delegate = self
+    OSSystemExtensionManager.shared.submitRequest(req)
+  }
+
+  // MARK: - OSSystemExtensionRequestDelegate
+  func requestNeedsUserApproval(_ request: OSSystemExtensionRequest) {
+    print("\nUser approval required!\n\n\(Self.approvalHelp)After approval, connect the gpu and use it with tinygrad.\n")
+    done?(.needsApproval)
+  }
+
+  func request(_ request: OSSystemExtensionRequest, didFinishWithResult result: OSSystemExtensionRequest.Result) {
+    switch result {
+    case .completed: print("Driver extension \(isInstall ? "installed" : "uninstalled") successfully!\n")
+    case .willCompleteAfterReboot: print("Will complete after reboot.\n")
+    @unknown default: print("Completed: \(result)\n")
+    }
+    done?(.ok)
+  }
+
+  func request(_ request: OSSystemExtensionRequest, didFailWithError error: Error) {
+    print("\nError: \(error.localizedDescription)\n")
+    let code = (error as NSError).code
+    if code == 4 { print("Missing entitlements. Rebuild with proper signing.\n") }
+    else if code == 8 { print("Extension not found in app bundle.\n") }
+    else if code == 9 { print("Extension disabled by user.\n\n\(Self.approvalHelp)") }
+    done?(.failed)
+  }
+
+  func request(_ request: OSSystemExtensionRequest, actionForReplacingExtension existing: OSSystemExtensionProperties,
+               withExtension ext: OSSystemExtensionProperties) -> OSSystemExtensionRequest.ReplacementAction {
+    print("Updating v\(existing.bundleShortVersion) -> v\(ext.bundleShortVersion)...\n")
+    return .replace
+  }
+}
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/Shared/tiny_icon.icon/Assets/tiny.svg
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/Shared/tiny_icon.icon/Assets/tiny.svg
@@ -0,0 +1,18 @@
+<svg viewBox="0 0 130 50" xmlns="http://www.w3.org/2000/svg">
+        <!-- t -->
+        <rect x="10" y="0" width="10" height="40" fill="#000000"></rect>
+        <rect x="0" y="10" width="30" height="10" fill="#000000"></rect>
+        <rect x="10" y="30" width="20" height="10" fill="#000000"></rect>
+        <!-- i -->
+        <rect x="40" y="0" width="10" height="10" fill="#000000"></rect>
+        <rect x="40" y="20" width="10" height="20" fill="#000000"></rect>
+        <!-- n -->
+        <rect x="60" y="10" width="10" height="30" fill="#000000"></rect>
+        <rect x="60" y="10" width="20" height="10" fill="#000000"></rect>
+        <rect x="80" y="20" width="10" height="20" fill="#000000"></rect>
+        <!-- y -->
+        <rect x="100" y="10" width="10" height="20" fill="#000000"></rect>
+        <rect x="100" y="20" width="30" height="10" fill="#000000"></rect>
+        <rect x="120" y="10" width="10" height="30" fill="#000000"></rect>
+        <rect x="100" y="40" width="20" height="10" fill="#000000"></rect>
+      </svg>
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/Shared/tiny_icon.icon/icon.json
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/Shared/tiny_icon.icon/icon.json
@@ -0,0 +1,52 @@
+{
+  "fill" : "automatic",
+  "groups" : [
+    {
+      "layers" : [
+        {
+          "fill-specializations" : [
+            {
+              "value" : "automatic"
+            },
+            {
+              "appearance" : "dark",
+              "value" : {
+                "solid" : "display-p3:0.94011,0.96611,0.94301,1.00000"
+              }
+            },
+            {
+              "appearance" : "tinted",
+              "value" : {
+                "solid" : "display-p3:0.79528,0.79528,0.79528,1.00000"
+              }
+            }
+          ],
+          "hidden" : false,
+          "image-name" : "tiny.svg",
+          "name" : "tiny_svg",
+          "position" : {
+            "scale" : 5,
+            "translation-in-points" : [
+              0,
+              19
+            ]
+          }
+        }
+      ],
+      "shadow" : {
+        "kind" : "neutral",
+        "opacity" : 0.5
+      },
+      "translucency" : {
+        "enabled" : true,
+        "value" : 0.5
+      }
+    }
+  ],
+  "supported-platforms" : {
+    "circles" : [
+      "watchOS"
+    ],
+    "squares" : "shared"
+  }
+}
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/TinyGPUDriverExtension.xcodeproj/project.pbxproj
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/TinyGPUDriverExtension.xcodeproj/project.pbxproj
@@ -0,0 +1,625 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 54;
+	objects = {
+
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+			remoteGlobalIDString = C5B7D9BB26128AC50089B4C3;
+			remoteInfo = SimpleAudioDriver;
+		};
+/* End PBXContainerItemProxy section */
+
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+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "";
+			dstSubfolderSpec = 6;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+		549EB122286A1D3A009D38AB /* Embed System Extensions */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "$(SYSTEM_EXTENSIONS_FOLDER_PATH)";
+			dstSubfolderSpec = 16;
+			files = (
+				549EB123286A1D48009D38AB /* org.tinygrad.tinygpu.driver2.dext in Embed System Extensions */,
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+			name = "Embed System Extensions";
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
+/* Begin PBXFileReference section */
+		0A52E8682F18FC6900A816CD /* tiny_icon.icon */ = {isa = PBXFileReference; lastKnownFileType = folder.iconcomposer.icon; path = tiny_icon.icon; sourceTree = "<group>"; };
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+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = driverkit;
+			};
+			name = Debug;
+		};
+		C5B7D9C826128AC50089B4C3 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "Apple Development";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				DRIVERKIT_DEPLOYMENT_TARGET = 22.0;
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = driverkit;
+				SWIFT_COMPILATION_MODE = wholemodule;
+			};
+			name = Release;
+		};
+		C5B7D9CA26128AC50089B4C3 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				AD_HOC_CODE_SIGNING_ALLOWED = YES;
+				CODE_SIGN_ENTITLEMENTS = TinyGPUDriverExtension/TinyGPUDriver.entitlements;
+				CODE_SIGN_IDENTITY = "Apple Development";
+				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 3;
+				DEVELOPMENT_TEAM = 9YG3G8543N;
+				DRIVERKIT_DEPLOYMENT_TARGET = 22.0;
+				ENABLE_USER_SCRIPT_SANDBOXING = YES;
+				EXCLUDED_ARCHS = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(SDKROOT)/System/DriverKit/System/Library/Frameworks",
+				);
+				GENERATE_INFOPLIST_FILE = YES;
+				INFOPLIST_FILE = TinyGPUDriverExtension/Info.plist;
+				INFOPLIST_KEY_OSBundleUsageDescription = "TinyGPU Driver";
+				IPHONEOS_DEPLOYMENT_TARGET = 17.6;
+				MARKETING_VERSION = 1.0.0;
+				PRODUCT_BUNDLE_IDENTIFIER = org.tinygrad.tinygpu.driver2;
+				PRODUCT_NAME = "$(inherited)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				RUN_CLANG_STATIC_ANALYZER = YES;
+				SDKROOT = driverkit;
+				SKIP_INSTALL = YES;
+				SUPPORTED_PLATFORMS = driverkit;
+			};
+			name = Debug;
+		};
+		C5B7D9CB26128AC50089B4C3 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				AD_HOC_CODE_SIGNING_ALLOWED = YES;
+				CODE_SIGN_ENTITLEMENTS = TinyGPUDriverExtension/TinyGPUDriver.Release.entitlements;
+				CODE_SIGN_IDENTITY = "Apple Development";
+				"CODE_SIGN_IDENTITY[sdk=driverkit*]" = "Apple Development";
+				CODE_SIGN_STYLE = Manual;
+				CURRENT_PROJECT_VERSION = 3;
+				DEVELOPMENT_TEAM = "";
+				"DEVELOPMENT_TEAM[sdk=driverkit*]" = 9YG3G8543N;
+				DRIVERKIT_DEPLOYMENT_TARGET = 22.0;
+				ENABLE_USER_SCRIPT_SANDBOXING = YES;
+				EXCLUDED_ARCHS = "";
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(SDKROOT)/System/DriverKit/System/Library/Frameworks",
+				);
+				GENERATE_INFOPLIST_FILE = YES;
+				INFOPLIST_FILE = TinyGPUDriverExtension/Info.plist;
+				INFOPLIST_KEY_OSBundleUsageDescription = "TinyGPU Driver";
+				IPHONEOS_DEPLOYMENT_TARGET = 17.6;
+				MARKETING_VERSION = 1.0.0;
+				ONLY_ACTIVE_ARCH = YES;
+				PRODUCT_BUNDLE_IDENTIFIER = org.tinygrad.tinygpu.driver2;
+				PRODUCT_NAME = "$(inherited)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				RUN_CLANG_STATIC_ANALYZER = YES;
+				SDKROOT = driverkit;
+				SKIP_INSTALL = YES;
+				SUPPORTED_PLATFORMS = driverkit;
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		54E42BD2286A1697000E1E9A /* Build configuration list for PBXNativeTarget "TinyGPU" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				54E42BCF286A1697000E1E9A /* Debug */,
+				54E42BD0286A1697000E1E9A /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		C5B7D9B626128AC50089B4C3 /* Build configuration list for PBXProject "TinyGPUDriverExtension" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				C5B7D9C726128AC50089B4C3 /* Debug */,
+				C5B7D9C826128AC50089B4C3 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		C5B7D9C926128AC50089B4C3 /* Build configuration list for PBXNativeTarget "TinyGPUDriver" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				C5B7D9CA26128AC50089B4C3 /* Debug */,
+				C5B7D9CB26128AC50089B4C3 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = C5B7D9B326128AC50089B4C3 /* Project object */;
+}
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/TinyGPUDriverExtension.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/TinyGPUDriverExtension.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>BuildSystemType</key>
+	<string>Latest</string>
+	<key>DerivedDataLocationStyle</key>
+	<string>Default</string>
+</dict>
+</plist>
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/TinyGPUDriverExtension/Info.plist
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/TinyGPUDriverExtension/Info.plist
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IOKitPersonalities</key>
+	<dict>
+		<key>TinyGPUDriver</key>
+		<dict>
+			<key>CFBundleIdentifier</key>
+			<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+			<key>IOClass</key>
+			<string>IOUserService</string>
+			<key>IOMatchCategory</key>
+			<string>TinyGPUDriver</string>
+			<key>IOPCIClassMatch</key>
+			<string>0x03000000</string>
+			<key>IOPCITunnelCompatible</key>
+			<true/>
+			<key>IOProviderClass</key>
+			<string>IOPCIDevice</string>
+			<key>IOResourceMatch</key>
+			<string>IOKit</string>
+			<key>IOUserClass</key>
+			<string>TinyGPUDriver</string>
+			<key>IOUserServerName</key>
+			<string>org.tinygrad.tinygpu.Driver</string>
+			<key>TinyGPUDriverUserClientProperties</key>
+			<dict>
+				<key>IOClass</key>
+				<string>IOUserUserClient</string>
+				<key>IOUserClass</key>
+				<string>TinyGPUDriverUserClient</string>
+			</dict>
+		</dict>
+	</dict>
+</dict>
+</plist>
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/TinyGPUDriverExtension/TinyGPUDriver.NV.Release.entitlements
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/TinyGPUDriverExtension/TinyGPUDriver.NV.Release.entitlements
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.application-identifier</key>
+	<string>9YG3G8543N.org.tinygrad.tinygpu.driver2</string>
+	<key>com.apple.developer.driverkit</key>
+	<true/>
+	<key>com.apple.developer.driverkit.transport.pci</key>
+	<array>
+		<dict>
+			<key>IOPCIPrimaryMatch</key>
+			<string>0x000010de&amp;0x0000FFFF</string>
+		</dict>
+	</array>
+</dict>
+</plist>
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/TinyGPUDriverExtension/TinyGPUDriver.NoSIP.entitlements
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/TinyGPUDriverExtension/TinyGPUDriver.NoSIP.entitlements
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.developer.driverkit</key>
+	<true/>
+	<key>com.apple.developer.driverkit.transport.pci</key>
+	<array>
+		<dict>
+			<key>IOPCIPrimaryMatch</key>
+			<string>0xFFFFFFFF&amp;0x00000000</string>
+		</dict>
+	</array>
+	<key>com.apple.developer.driverkit.allow-any-userclient-access</key>
+	<true/>
+</dict>
+</plist>
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/TinyGPUDriverExtension/TinyGPUDriver.Release.entitlements
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/TinyGPUDriverExtension/TinyGPUDriver.Release.entitlements
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.application-identifier</key>
+	<string>9YG3G8543N.org.tinygrad.tinygpu.driver2</string>
+	<key>com.apple.developer.driverkit</key>
+	<true/>
+	<key>com.apple.developer.driverkit.transport.pci</key>
+	<array>
+		<dict>
+			<key>IOPCIPrimaryMatch</key>
+			<string>0x000010de&amp;0x0000FFFF</string>
+		</dict>
+		<dict>
+			<key>IOPCIPrimaryMatch</key>
+			<string>0x00001002&amp;0x0000FFFF</string>
+		</dict>
+	</array>
+</dict>
+</plist>
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/TinyGPUDriverExtension/TinyGPUDriver.entitlements
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/TinyGPUDriverExtension/TinyGPUDriver.entitlements
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.developer.driverkit</key>
+	<true/>
+	<key>com.apple.developer.driverkit.transport.pci</key>
+	<array>
+		<dict>
+			<key>IOPCIPrimaryMatch</key>
+			<string>0xFFFFFFFF&amp;0x00000000</string>
+		</dict>
+	</array>
+</dict>
+</plist>
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/TinyGPUDriverExtension/TinyGPUDriver.iig
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/TinyGPUDriverExtension/TinyGPUDriver.iig
@@ -0,0 +1,40 @@
+#ifndef TinyGPUDriver_h
+#define TinyGPUDriver_h
+
+#include <Availability.h>
+#include <DriverKit/IOService.iig>
+#include <PCIDriverKit/IOPCIDevice.iig>
+#include <DriverKit/IOMemoryMap.iig>
+#include <DriverKit/IODMACommand.iig>
+
+struct TinyGPUCreateDMAResp
+{
+	IOBufferMemoryDescriptor* sharedBuf;
+	IODMACommand* dmaCmd;
+};
+
+class TinyGPUDriver: public IOService
+{
+public:
+	virtual bool init() override;
+
+	virtual void free() override;
+
+	virtual kern_return_t Start(IOService * provider) override;
+
+	virtual kern_return_t Stop(IOService * provider) override;
+
+	virtual kern_return_t NewUserClient(uint32_t in_type, IOUserClient** out_user_client) override;
+
+	kern_return_t MapBar(uint32_t bar, IOMemoryDescriptor** memory) LOCALONLY;
+	kern_return_t CreateDMA(size_t size, TinyGPUCreateDMAResp* dmaDesc) LOCALONLY;
+	kern_return_t SetupDMA(IOMemoryDescriptor* memory, uint64_t size, IODMACommand** outCmd,
+	                       IOAddressSegment* segments, uint32_t* segCount) LOCALONLY;
+
+	kern_return_t CfgRead(uint32_t off, uint32_t size, uint32_t* val) LOCALONLY;
+	kern_return_t CfgWrite(uint32_t off, uint32_t size, uint32_t val) LOCALONLY;
+	kern_return_t ResetDevice() LOCALONLY;
+	IOPCIDevice* GetPCI() LOCALONLY;
+};
+
+#endif /* TinyGPUDriver_h */
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/TinyGPUDriverExtension/TinyGPUDriverUserClient.iig
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/TinyGPUDriverExtension/TinyGPUDriverUserClient.iig
@@ -0,0 +1,29 @@
+#ifndef TinyGPUDriverUserClient_h
+#define TinyGPUDriverUserClient_h
+
+#include <DriverKit/IOUserClient.iig>
+
+enum TinyGPURPC
+{
+	ReadCfg,
+	WriteCfg,
+	Reset,
+	PrepareDMA,
+};
+
+class TinyGPUDriverUserClient : public IOUserClient
+{
+public:
+	virtual bool init() final;
+	virtual void free() final;
+
+	virtual kern_return_t Start(IOService* in_provider) final;
+	virtual kern_return_t Stop(IOService* in_provider) final;
+
+	virtual kern_return_t ExternalMethod(uint64_t in_selector, IOUserClientMethodArguments* in_arguments, const IOUserClientMethodDispatch* in_dispatch, OSObject* in_target, void* in_reference) final;
+
+	virtual kern_return_t CopyClientMemoryForType(
+		uint64_t type, uint64_t *options, IOMemoryDescriptor **memory) final;
+};
+
+#endif /* TinyGPUDriverUserClient_h */
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/build_and_sign.sh
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/build_and_sign.sh
@@ -0,0 +1,33 @@
+#!/bin/bash
+set -e
+
+xcodebuild clean build CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO -alltargets -configuration Release build
+
+cp "../profiles/driver_release_0431.provisionprofile" "./build/Release/TinyGPU.app/Contents/Library/SystemExtensions/org.tinygrad.tinygpu.driver2.dext/embedded.provisionprofile"
+cp "../profiles/installer_release_0431.provisionprofile" "./build/Release/TinyGPU.app/Contents/embedded.provisionprofile"
+
+codesign \
+    --sign "Developer ID Application: tinygrad, Corp. (9YG3G8543N)" \
+    --entitlements ./TinyGPUDriverExtension/TinyGPUDriver.Release.entitlements \
+    --verbose \
+    --options runtime \
+    --timestamp \
+    --force \
+    ./build/Release/TinyGPU.app/Contents/Library/SystemExtensions/org.tinygrad.tinygpu.driver2.dext
+
+codesign \
+    --sign "Developer ID Application: tinygrad, Corp. (9YG3G8543N)" \
+    --entitlements ./macOS/macOS.entitlements \
+    --options runtime \
+    --verbose \
+    --timestamp \
+    --force \
+    ./build/Release/TinyGPU.app
+
+codesign --verify --deep --strict --verbose=4 ./build/Release/TinyGPU.app/Contents/Library/SystemExtensions/org.tinygrad.tinygpu.driver2.dext
+
+codesign --verify --deep --strict --verbose=4 ./build/Release/TinyGPU.app
+
+spctl -a -vv ./build/Release/TinyGPU.app
+
+spctl -a -vv ./build/Release/TinyGPU.app/Contents/Library/SystemExtensions/org.tinygrad.tinygpu.driver2.dext
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/build_and_sign_nv.sh
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/build_and_sign_nv.sh
@@ -0,0 +1,33 @@
+#!/bin/bash
+set -e
+
+xcodebuild clean build CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO -alltargets -configuration Release build
+
+cp "../profiles/edriver_rel_2.provisionprofile" "./build/Release/TinyGPU.app/Contents/Library/SystemExtensions/org.tinygrad.tinygpu.driver2.dext/embedded.provisionprofile"
+cp "../profiles/installer_provisioning.provisionprofile" "./build/Release/TinyGPU.app/Contents/embedded.provisionprofile"
+
+codesign \
+    --sign "Developer ID Application: tinygrad, Corp. (9YG3G8543N)" \
+    --entitlements ./TinyGPUDriverExtension/TinyGPUDriver.NV.Release.entitlements \
+    --verbose \
+    --options runtime \
+    --timestamp \
+    --force \
+    ./build/Release/TinyGPU.app/Contents/Library/SystemExtensions/org.tinygrad.tinygpu.driver2.dext
+
+codesign \
+    --sign "Developer ID Application: tinygrad, Corp. (9YG3G8543N)" \
+    --entitlements ./macOS/macOS.entitlements \
+    --options runtime \
+    --verbose \
+    --timestamp \
+    --force \
+    ./build/Release/TinyGPU.app
+
+codesign --verify --deep --strict --verbose=4 ./build/Release/TinyGPU.app/Contents/Library/SystemExtensions/org.tinygrad.tinygpu.driver2.dext
+
+codesign --verify --deep --strict --verbose=4 ./build/Release/TinyGPU.app
+
+spctl -a -vv ./build/Release/TinyGPU.app
+
+spctl -a -vv ./build/Release/TinyGPU.app/Contents/Library/SystemExtensions/org.tinygrad.tinygpu.driver2.dext
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/install_nosip.sh
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/install_nosip.sh
@@ -0,0 +1,52 @@
+#!/bin/bash
+set -e
+
+# Check SIP status if not building only
+if [[ "$1" != "--build" ]]; then
+  SIP_STATUS=$(csrutil status 2>&1)
+  if [[ "$SIP_STATUS" == *"enabled"* ]]; then
+    echo "ERROR: System Integrity Protection (SIP) is enabled."
+    echo "This dev build requires SIP to be disabled to load unsigned dexts."
+    echo ""
+    echo "To disable SIP:"
+    echo "  1. Restart and hold Power button (M1+) or Cmd+R (Intel)"
+    echo "  2. Open Terminal from Recovery menu"
+    echo "  3. Run: csrutil disable"
+    echo "  4. Restart"
+    exit 1
+  fi
+fi
+
+echo "SIP is disabled, proceeding with dev build..."
+
+cd "$(dirname "$0")"
+
+# Build without code signing
+xcodebuild clean build CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO -alltargets -configuration Debug build
+
+APP_PATH="./build/Debug/TinyGPU.app"
+DEXT_PATH="$APP_PATH/Contents/Library/SystemExtensions/org.tinygrad.tinygpu.driver2.dext"
+
+# Ad-hoc sign with dev entitlements (matches any GPU)
+codesign --sign - --entitlements ./TinyGPUDriverExtension/TinyGPUDriver.NoSIP.entitlements --force --timestamp --verbose "$DEXT_PATH"
+codesign --sign - --entitlements ./macOS/macOS.entitlements --force --timestamp --verbose "$APP_PATH"
+
+echo "Build complete: $APP_PATH"
+
+if [[ "$1" == "--build" ]]; then
+  exit 0
+fi
+
+# Install
+echo "Installing to /Applications..."
+
+if [ -d "/Applications/TinyGPU.app" ]; then
+  echo "Removing existing /Applications/TinyGPU.app..."
+  rm -rf "/Applications/TinyGPU.app"
+fi
+
+cp -r "$APP_PATH" /Applications/
+echo "Installed to /Applications/TinyGPU.app"
+
+echo "Activating driver extension..."
+/Applications/TinyGPU.app/Contents/MacOS/TinyGPU install
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/macOS/macOS.entitlements
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/macOS/macOS.entitlements
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.app-sandbox</key>
+	<false/>
+	<key>com.apple.security.files.user-selected.read-only</key>
+	<true/>
+	<key>com.apple.developer.system-extension.install</key>
+	<true/>
+	<key>com.apple.developer.driverkit.userclient-access</key>
+	<array>
+		<string>org.tinygrad.tinygpu.driver2</string>
+	</array>
+</dict>
+</plist>
--- a/tinygrad_repo/extra/usbgpu/tbgpu/installer/notary_tool.sh
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/installer/notary_tool.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+set -e
+
+ditto -c -k --keepParent ./build/Release/TinyGPU.app ./build/Release/TinyGPU.zip
+xcrun notarytool submit ./build/Release/TinyGPU.zip --keychain-profile "hgwJFhdheiIEy82nDN" --wait
+
+rm ./build/Release/TinyGPU.zip
+xcrun stapler staple ./build/Release/TinyGPU.app
+ditto -c -k --keepParent ./build/Release/TinyGPU.app ./build/Release/TinyGPU.zip
--- a/tinygrad_repo/extra/usbgpu/tbgpu/kill_tinygpu.sh
+++ b/tinygrad_repo/extra/usbgpu/tbgpu/kill_tinygpu.sh
@@ -0,0 +1,2 @@
+#!/bin/bash
+pkill -f "tinygpu.sock"