Method palloc

tinygrad/runtime/support/memory.py:274–279

(self, size:int, align:int=0x1000, zero=True, boot=False, ptable=False)

    for paddr, _ in vm.paddrs: self.pfree(paddr)

  def palloc(self, size:int, align:int=0x1000, zero=True, boot=False, ptable=False) -> int:
    assert self.dev.is_booting == boot, "During booting, only boot memory can be allocated"
    allocator = self.boot_allocator if boot else (self.ptable_allocator if self.reserve_ptable and ptable else self.pa_allocator)
    paddr = allocator.alloc(round_up(size, 0x1000), align)
    if zero: self.dev.vram[paddr:paddr+size] = bytes(size)
    return paddr

  def pfree(self, paddr:int, ptable=False): (self.ptable_allocator if self.reserve_ptable and ptable else self.pa_allocator).free(paddr)