diff --git a/tinygrad/runtime/support/nv/nvdev.py b/tinygrad/runtime/support/nv/nvdev.py
index f2fac74698..cadc599cca 100644
--- a/tinygrad/runtime/support/nv/nvdev.py
+++ b/tinygrad/runtime/support/nv/nvdev.py
@@ -145,14 +145,17 @@ class NVDev:
     self.mm = NVMemoryManager(self, self.vram_size - (64 << 20), boot_size=(2 << 20), pt_t=NVPageTableEntry, va_bits=bits, va_shifts=shifts,
       va_base=0, palloc_ranges=[(x, x) for x in [512 << 20, 2 << 20, 4 << 10]], reserve_ptable=not self.large_bar)
 
-  def _alloc_boot_mem(self, size:int, data:bytes|None=None, contiguous:bool=False, sysmem:bool|None=None) -> tuple[MMIOInterface, int, list[int]]:
+  def _alloc_boot_mem(self, size:int, data:bytes|None=None, contiguous:bool=False, sysmem:bool|None=None) -> tuple[MMIOInterface,int|None,list[int]]:
     sz = round_up(size, 0x1000)
-    if sysmem is True or (sysmem is None and not self.large_bar): view, paddrs = self.pci_dev.alloc_sysmem(size, 0, contiguous=contiguous)
+    if sysmem is True or (sysmem is None and not self.large_bar):
+      view, sysaddr = self.pci_dev.alloc_sysmem(size, 0, contiguous=contiguous)
+      paddr = None
     else:
       paddr = self.mm.palloc(sz, boot=False)
-      view, paddrs = self.vram.view(paddr, sz), [self.pci_dev.bar_info(1)[0] + paddr + i * 0x1000 for i in range(sz // 0x1000)]
+      view = self.vram.view(paddr, sz)
+      sysaddr = [self.pci_dev.bar_info(1)[0] + paddr + i * 0x1000 for i in range(sz // 0x1000)]
     if data is not None: view[:size] = data
-    return view, paddrs[0], paddrs
+    return view, paddr, sysaddr
 
   def include(self, name:str, arch:str):
     for k,v in getattr(getattr(tinygrad.runtime.autogen.nv_regs, name), arch or 'regs').items():