blob: 3e8e2cdb9ebdd65f304848678f7038250db72c8d [file] [log] [blame]
b.liue9582032025-04-17 19:18:16 +08001/*
2 * (C) Copyright 2002-2010
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * SPDX-License-Identifier: GPL-2.0+
6 */
7
8#ifndef __ASM_GBL_DATA_H
9#define __ASM_GBL_DATA_H
10
11#ifndef __ASSEMBLY__
12
13/* Architecture-specific global data */
14struct arch_global_data {
15 struct global_data *gd_addr; /* Location of Global Data */
16 uint64_t tsc_base; /* Initial value returned by rdtsc() */
17 uint32_t tsc_base_kclocks; /* Initial tsc as a kclocks value */
18 uint32_t tsc_prev; /* For show_boot_progress() */
19 void *new_fdt; /* Relocated FDT */
20};
21
22#endif
23
24#include <asm-generic/global_data.h>
25
26#ifndef __ASSEMBLY__
27static inline __attribute__((no_instrument_function)) gd_t *get_fs_gd_ptr(void)
28{
29 gd_t *gd_ptr;
30
31 asm volatile("fs movl 0, %0\n" : "=r" (gd_ptr));
32
33 return gd_ptr;
34}
35
36#define gd get_fs_gd_ptr()
37
38#endif
39
40/*
41 * Our private Global Data Flags
42 */
43#define GD_FLG_COLD_BOOT 0x00100 /* Cold Boot */
44#define GD_FLG_WARM_BOOT 0x00200 /* Warm Boot */
45
46#define DECLARE_GLOBAL_DATA_PTR
47
48#endif /* __ASM_GBL_DATA_H */