GRUB2/MOD_SRC/grub-2.04/include/grub/mips64/memory.h

   1 /*
   2  *  GRUB  --  GRand Unified Bootloader
   3  *  Copyright (C) 2017 Free Software Foundation, Inc.
   4  *
   5  *  GRUB is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  GRUB is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifndef GRUB_MEMORY_CPU_HEADER
  20 #define GRUB_MEMORY_CPU_HEADER  1
  21
  22 #ifndef ASM_FILE
  23 #include <grub/symbol.h>
  24 #include <grub/err.h>
  25 #include <grub/types.h>
  26 #endif
  27
  28 #ifndef ASM_FILE
  29
  30 typedef grub_addr_t grub_phys_addr_t;
  31
  32 static inline grub_phys_addr_t
  33 grub_vtop (void *a)
  34 {
  35   if (-1 == ((grub_int64_t) a >> 32))
  36     return ((grub_phys_addr_t) a) & 0x1fffffffUL;
  37   return ((grub_phys_addr_t) a) & 0xffffffffffffUL;
  38 }
  39
  40 static inline void *
  41 grub_map_memory (grub_phys_addr_t a, grub_size_t size)
  42 {
  43   if ((a + size) < 0x20000000UL)
  44     return (void *) (a | 0xffffffff80000000UL);
  45 //  return (void *) (a | 0x9800000000000000UL);
  46     return (void *) ((a&0x8fffffff) | 0xffffffff00000000UL);
  47 }
  48
  49 static inline void
  50 grub_unmap_memory (void *a __attribute__ ((unused)),
  51                    grub_size_t size __attribute__ ((unused)))
  52 {
  53 }
  54
  55 #endif
  56
  57 #endif