#ifndef _MM_HH_
#define _MM_HH_

#include <cstdint>

#include "exceptions.hh"

namespace mm {
  // Initialize memory management
  // Physical memory management must be initialized before calling mm::init
  void init();

  // Allocate 'pages' pages of virtual address space in the I/O region
  uintptr_t virtalloc_io(unsigned pages);

  // Allocate in pagecache region
  uintptr_t virtalloc_pc(unsigned pages);
  void virtfree_pc(uintptr_t base);

  // Grow the kernel heap by 'pages' pages
  // Allocate and map the desired amount of memory
  // Return the new heap end
  uintptr_t grow_heap(unsigned pages);
  
  uintptr_t get_heap_end();

  class bad_alloc : public ex::bad_alloc {};
}

#endif