include/efi_dt_fixup.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * EFI_DT_FIXUP_PROTOCOL
   4  *
   5  * Copyright (c) 2020 Heinrich Schuchardt
   6  */
   7
   8 #include <efi_api.h>
   9
  10 #define EFI_DT_FIXUP_PROTOCOL_REVISION 0x00010000
  11
  12 /* Add nodes and update properties */
  13 #define EFI_DT_APPLY_FIXUPS    0x00000001
  14 /*
  15  * Reserve memory according to the /reserved-memory node
  16  * and the memory reservation block
  17  */
  18 #define EFI_DT_RESERVE_MEMORY  0x00000002
  19 /* Install the device-tree as configuration table */
  20 #define EFI_DT_INSTALL_TABLE   0x00000004
  21
  22 #define EFI_DT_ALL (EFI_DT_APPLY_FIXUPS | \
  23                     EFI_DT_RESERVE_MEMORY | \
  24                     EFI_DT_INSTALL_TABLE)
  25
  26 struct efi_dt_fixup_protocol {
  27         u64 revision;
  28         efi_status_t (EFIAPI *fixup) (struct efi_dt_fixup_protocol *this,
  29                                       void *dtb,
  30                                       efi_uintn_t *buffer_size,
  31                                       u32 flags);
  32 };
  33
  34 extern struct efi_dt_fixup_protocol efi_dt_fixup_prot;
  35 extern const efi_guid_t efi_guid_dt_fixup_protocol;