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 memory_area { 23 uint64_t start; 24 uint64_t size; 25 }; 26 27 struct memory_info { 28 int num_areas; 29 uint64_t total_memory; 30 uint64_t total_32bit_memory; 31 struct memory_area area[CONFIG_NR_DRAM_BANKS]; 32 }; 33 34 #define MAX_MTRR_REQUESTS 8 35 36 /** 37 * A request for a memory region to be set up in a particular way. These 38 * requests are processed before board_init_r() is called. They are generally 39 * optional and can be ignored with some performance impact. 40 */ 41 struct mtrr_request { 42 int type; /* MTRR_TYPE_... */ 43 uint64_t start; 44 uint64_t size; 45 }; 46 47 /* Architecture-specific global data */ 48 struct arch_global_data { 49 u64 gdt[X86_GDT_NUM_ENTRIES] __aligned(16); 50 struct global_data *gd_addr; /* Location of Global Data */ 51 uint8_t x86; /* CPU family */ 52 uint8_t x86_vendor; /* CPU vendor */ 53 uint8_t x86_model; 54 uint8_t x86_mask; 55 uint32_t x86_device; 56 uint64_t tsc_base; /* Initial value returned by rdtsc() */ 57 uint32_t tsc_base_kclocks; /* Initial tsc as a kclocks value */ 58 uint32_t tsc_prev; /* For show_boot_progress() */ 59 uint32_t tsc_mhz; /* TSC frequency in MHz */ 60 void *new_fdt; /* Relocated FDT */ 61 uint32_t bist; /* Built-in self test value */ 62 enum pei_boot_mode_t pei_boot_mode; 63 const struct pch_gpio_map *gpio_map; /* board GPIO map */ 64 struct memory_info meminfo; /* Memory information */ 65 #ifdef CONFIG_HAVE_FSP 66 void *hob_list; /* FSP HOB list */ 67 #endif 68 struct mtrr_request mtrr_req[MAX_MTRR_REQUESTS]; 69 int mtrr_req_count; 70 int has_mtrr; 71 /* MRC training data to save for the next boot */ 72 char *mrc_output; 73 unsigned int mrc_output_len; 74 ulong table; /* Table pointer from previous loader */ 75 }; 76 77 #endif 78 79 #include <asm-generic/global_data.h> 80 81 #ifndef __ASSEMBLY__ 82 # ifdef CONFIG_EFI_APP 83 84 #define gd global_data_ptr 85 86 #define DECLARE_GLOBAL_DATA_PTR extern struct global_data *global_data_ptr 87 # else 88 static inline __attribute__((no_instrument_function)) gd_t *get_fs_gd_ptr(void) 89 { 90 gd_t *gd_ptr; 91 92 asm volatile("fs movl 0, %0\n" : "=r" (gd_ptr)); 93 94 return gd_ptr; 95 } 96 97 #define gd get_fs_gd_ptr() 98 99 #define DECLARE_GLOBAL_DATA_PTR 100 # endif 101 102 #endif 103 104 /* 105 * Our private Global Data Flags 106 */ 107 #define GD_FLG_COLD_BOOT 0x10000 /* Cold Boot */ 108 #define GD_FLG_WARM_BOOT 0x20000 /* Warm Boot */ 109 110 #endif /* __ASM_GBL_DATA_H */ 111