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 #include <asm/processor.h> 14 15 enum pei_boot_mode_t { 16 PEI_BOOT_NONE = 0, 17 PEI_BOOT_SOFT_RESET, 18 PEI_BOOT_RESUME, 19 20 }; 21 22 struct dimm_info { 23 uint32_t dimm_size; 24 uint16_t ddr_type; 25 uint16_t ddr_frequency; 26 uint8_t rank_per_dimm; 27 uint8_t channel_num; 28 uint8_t dimm_num; 29 uint8_t bank_locator; 30 /* The 5th byte is '\0' for the end of string */ 31 uint8_t serial[5]; 32 /* The 19th byte is '\0' for the end of string */ 33 uint8_t module_part_number[19]; 34 uint16_t mod_id; 35 uint8_t mod_type; 36 uint8_t bus_width; 37 } __packed; 38 39 struct pei_memory_info { 40 uint8_t dimm_cnt; 41 /* Maximum num of dimm is 8 */ 42 struct dimm_info dimm[8]; 43 } __packed; 44 45 struct memory_area { 46 uint64_t start; 47 uint64_t size; 48 }; 49 50 struct memory_info { 51 int num_areas; 52 uint64_t total_memory; 53 uint64_t total_32bit_memory; 54 struct memory_area area[CONFIG_NR_DRAM_BANKS]; 55 }; 56 57 #define MAX_MTRR_REQUESTS 8 58 59 /** 60 * A request for a memory region to be set up in a particular way. These 61 * requests are processed before board_init_r() is called. They are generally 62 * optional and can be ignored with some performance impact. 63 */ 64 struct mtrr_request { 65 int type; /* MTRR_TYPE_... */ 66 uint64_t start; 67 uint64_t size; 68 }; 69 70 /* Architecture-specific global data */ 71 struct arch_global_data { 72 u64 gdt[X86_GDT_NUM_ENTRIES] __aligned(16); 73 struct global_data *gd_addr; /* Location of Global Data */ 74 uint8_t x86; /* CPU family */ 75 uint8_t x86_vendor; /* CPU vendor */ 76 uint8_t x86_model; 77 uint8_t x86_mask; 78 uint32_t x86_device; 79 uint64_t tsc_base; /* Initial value returned by rdtsc() */ 80 void *new_fdt; /* Relocated FDT */ 81 uint32_t bist; /* Built-in self test value */ 82 enum pei_boot_mode_t pei_boot_mode; 83 const struct pch_gpio_map *gpio_map; /* board GPIO map */ 84 struct memory_info meminfo; /* Memory information */ 85 struct pei_memory_info pei_meminfo; /* PEI memory information */ 86 #ifdef CONFIG_HAVE_FSP 87 void *hob_list; /* FSP HOB list */ 88 #endif 89 struct mtrr_request mtrr_req[MAX_MTRR_REQUESTS]; 90 int mtrr_req_count; 91 int has_mtrr; 92 /* MRC training data to save for the next boot */ 93 char *mrc_output; 94 unsigned int mrc_output_len; 95 ulong table; /* Table pointer from previous loader */ 96 }; 97 98 #endif 99 100 #include <asm-generic/global_data.h> 101 102 #ifndef __ASSEMBLY__ 103 # ifdef CONFIG_EFI_APP 104 105 #define gd global_data_ptr 106 107 #define DECLARE_GLOBAL_DATA_PTR extern struct global_data *global_data_ptr 108 # else 109 static inline __attribute__((no_instrument_function)) gd_t *get_fs_gd_ptr(void) 110 { 111 gd_t *gd_ptr; 112 113 asm volatile("fs movl 0, %0\n" : "=r" (gd_ptr)); 114 115 return gd_ptr; 116 } 117 118 #define gd get_fs_gd_ptr() 119 120 #define DECLARE_GLOBAL_DATA_PTR 121 # endif 122 123 #endif 124 125 /* 126 * Our private Global Data Flags 127 */ 128 #define GD_FLG_COLD_BOOT 0x10000 /* Cold Boot */ 129 #define GD_FLG_WARM_BOOT 0x20000 /* Warm Boot */ 130 131 #endif /* __ASM_GBL_DATA_H */ 132