1 /* 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 enum pei_boot_mode_t { 14 PEI_BOOT_NONE = 0, 15 PEI_BOOT_SOFT_RESET, 16 PEI_BOOT_RESUME, 17 18 }; 19 20 struct memory_area { 21 uint64_t start; 22 uint64_t size; 23 }; 24 25 struct memory_info { 26 int num_areas; 27 uint64_t total_memory; 28 uint64_t total_32bit_memory; 29 struct memory_area area[CONFIG_NR_DRAM_BANKS]; 30 }; 31 32 #define MAX_MTRR_REQUESTS 8 33 34 /** 35 * A request for a memory region to be set up in a particular way. These 36 * requests are processed before board_init_r() is called. They are generally 37 * optional and can be ignored with some performance impact. 38 */ 39 struct mtrr_request { 40 int type; /* MTRR_TYPE_... */ 41 uint64_t start; 42 uint64_t size; 43 }; 44 45 /* Architecture-specific global data */ 46 struct arch_global_data { 47 struct global_data *gd_addr; /* Location of Global Data */ 48 uint8_t x86; /* CPU family */ 49 uint8_t x86_vendor; /* CPU vendor */ 50 uint8_t x86_model; 51 uint8_t x86_mask; 52 uint32_t x86_device; 53 uint64_t tsc_base; /* Initial value returned by rdtsc() */ 54 uint32_t tsc_base_kclocks; /* Initial tsc as a kclocks value */ 55 uint32_t tsc_prev; /* For show_boot_progress() */ 56 uint32_t tsc_mhz; /* TSC frequency in MHz */ 57 void *new_fdt; /* Relocated FDT */ 58 uint32_t bist; /* Built-in self test value */ 59 enum pei_boot_mode_t pei_boot_mode; 60 const struct pch_gpio_map *gpio_map; /* board GPIO map */ 61 struct memory_info meminfo; /* Memory information */ 62 #ifdef CONFIG_HAVE_FSP 63 void *hob_list; /* FSP HOB list */ 64 #endif 65 struct mtrr_request mtrr_req[MAX_MTRR_REQUESTS]; 66 int mtrr_req_count; 67 int has_mtrr; 68 /* MRC training data to save for the next boot */ 69 char *mrc_output; 70 unsigned int mrc_output_len; 71 }; 72 73 #endif 74 75 #include <asm-generic/global_data.h> 76 77 #ifndef __ASSEMBLY__ 78 static inline __attribute__((no_instrument_function)) gd_t *get_fs_gd_ptr(void) 79 { 80 gd_t *gd_ptr; 81 82 asm volatile("fs movl 0, %0\n" : "=r" (gd_ptr)); 83 84 return gd_ptr; 85 } 86 87 #define gd get_fs_gd_ptr() 88 89 #endif 90 91 /* 92 * Our private Global Data Flags 93 */ 94 #define GD_FLG_COLD_BOOT 0x00100 /* Cold Boot */ 95 #define GD_FLG_WARM_BOOT 0x00200 /* Warm Boot */ 96 97 #define DECLARE_GLOBAL_DATA_PTR 98 99 #endif /* __ASM_GBL_DATA_H */ 100