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
26struct 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
34extern struct efi_dt_fixup_protocol efi_dt_fixup_prot;
35extern const efi_guid_t efi_guid_dt_fixup_protocol;
36