1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * (C) Copyright 2002-2010 4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 5 */ 6 7 #ifndef __ASM_GBL_DATA_H 8 #define __ASM_GBL_DATA_H 9 10 #ifndef __ASSEMBLY__ 11 12 #include <asm/processor.h> 13 14 enum pei_boot_mode_t { 15 PEI_BOOT_NONE = 0, 16 PEI_BOOT_SOFT_RESET, 17 PEI_BOOT_RESUME, 18 19 }; 20 21 struct dimm_info { 22 uint32_t dimm_size; 23 uint16_t ddr_type; 24 uint16_t ddr_frequency; 25 uint8_t rank_per_dimm; 26 uint8_t channel_num; 27 uint8_t dimm_num; 28 uint8_t bank_locator; 29 /* The 5th byte is '\0' for the end of string */ 30 uint8_t serial[5]; 31 /* The 19th byte is '\0' for the end of string */ 32 uint8_t module_part_number[19]; 33 uint16_t mod_id; 34 uint8_t mod_type; 35 uint8_t bus_width; 36 } __packed; 37 38 struct pei_memory_info { 39 uint8_t dimm_cnt; 40 /* Maximum num of dimm is 8 */ 41 struct dimm_info dimm[8]; 42 } __packed; 43 44 struct memory_area { 45 uint64_t start; 46 uint64_t size; 47 }; 48 49 struct memory_info { 50 int num_areas; 51 uint64_t total_memory; 52 uint64_t total_32bit_memory; 53 struct memory_area area[CONFIG_NR_DRAM_BANKS]; 54 }; 55 56 #define MAX_MTRR_REQUESTS 8 57 58 /** 59 * A request for a memory region to be set up in a particular way. These 60 * requests are processed before board_init_r() is called. They are generally 61 * optional and can be ignored with some performance impact. 62 */ 63 struct mtrr_request { 64 int type; /* MTRR_TYPE_... */ 65 uint64_t start; 66 uint64_t size; 67 }; 68 69 /* Architecture-specific global data */ 70 struct arch_global_data { 71 u64 gdt[X86_GDT_NUM_ENTRIES] __aligned(16); 72 struct global_data *gd_addr; /* Location of Global Data */ 73 uint8_t x86; /* CPU family */ 74 uint8_t x86_vendor; /* CPU vendor */ 75 uint8_t x86_model; 76 uint8_t x86_mask; 77 uint32_t x86_device; 78 uint64_t tsc_base; /* Initial value returned by rdtsc() */ 79 bool tsc_inited; /* true if tsc is ready for use */ 80 unsigned long clock_rate; /* Clock rate of timer in Hz */ 81 void *new_fdt; /* Relocated FDT */ 82 uint32_t bist; /* Built-in self test value */ 83 enum pei_boot_mode_t pei_boot_mode; 84 const struct pch_gpio_map *gpio_map; /* board GPIO map */ 85 struct memory_info meminfo; /* Memory information */ 86 struct pei_memory_info pei_meminfo; /* PEI memory information */ 87 #ifdef CONFIG_USE_HOB 88 void *hob_list; /* FSP HOB list */ 89 #endif 90 struct mtrr_request mtrr_req[MAX_MTRR_REQUESTS]; 91 int mtrr_req_count; 92 int has_mtrr; 93 /* MRC training data to save for the next boot */ 94 char *mrc_output; 95 unsigned int mrc_output_len; 96 ulong table; /* Table pointer from previous loader */ 97 int turbo_state; /* Current turbo state */ 98 struct irq_routing_table *pirq_routing_table; 99 #ifdef CONFIG_SEABIOS 100 u32 high_table_ptr; 101 u32 high_table_limit; 102 #endif 103 #ifdef CONFIG_HAVE_ACPI_RESUME 104 int prev_sleep_state; /* Previous sleep state ACPI_S0/1../5 */ 105 ulong backup_mem; /* Backup memory address for S3 */ 106 #endif 107 }; 108 109 #endif 110 111 #include <asm-generic/global_data.h> 112 113 #ifndef __ASSEMBLY__ 114 # if defined(CONFIG_EFI_APP) || CONFIG_IS_ENABLED(X86_64) 115 116 /* TODO(sjg@chromium.org): Consider using a fixed register for gd on x86_64 */ 117 #define gd global_data_ptr 118 119 #define DECLARE_GLOBAL_DATA_PTR extern struct global_data *global_data_ptr 120 # else get_fs_gd_ptr(void)121static inline __attribute__((no_instrument_function)) gd_t *get_fs_gd_ptr(void) 122 { 123 gd_t *gd_ptr; 124 125 #if CONFIG_IS_ENABLED(X86_64) 126 asm volatile("fs mov 0, %0\n" : "=r" (gd_ptr)); 127 #else 128 asm volatile("fs movl 0, %0\n" : "=r" (gd_ptr)); 129 #endif 130 131 return gd_ptr; 132 } 133 134 #define gd get_fs_gd_ptr() 135 136 #define DECLARE_GLOBAL_DATA_PTR 137 # endif 138 139 #endif 140 141 #endif /* __ASM_GBL_DATA_H */ 142