diff options
Diffstat (limited to 'arch/x86/include/asm/global_data.h')
| -rw-r--r-- | arch/x86/include/asm/global_data.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/arch/x86/include/asm/global_data.h b/arch/x86/include/asm/global_data.h new file mode 100644 index 0000000..17a4d34 --- /dev/null +++ b/arch/x86/include/asm/global_data.h @@ -0,0 +1,140 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (C) Copyright 2002-2010 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + */ + +#ifndef __ASM_GBL_DATA_H +#define __ASM_GBL_DATA_H + +#ifndef __ASSEMBLY__ + +#include <asm/processor.h> + +enum pei_boot_mode_t { + PEI_BOOT_NONE = 0, + PEI_BOOT_SOFT_RESET, + PEI_BOOT_RESUME, + +}; + +struct dimm_info { + uint32_t dimm_size; + uint16_t ddr_type; + uint16_t ddr_frequency; + uint8_t rank_per_dimm; + uint8_t channel_num; + uint8_t dimm_num; + uint8_t bank_locator; + /* The 5th byte is '\0' for the end of string */ + uint8_t serial[5]; + /* The 19th byte is '\0' for the end of string */ + uint8_t module_part_number[19]; + uint16_t mod_id; + uint8_t mod_type; + uint8_t bus_width; +} __packed; + +struct pei_memory_info { + uint8_t dimm_cnt; + /* Maximum num of dimm is 8 */ + struct dimm_info dimm[8]; +} __packed; + +struct memory_area { + uint64_t start; + uint64_t size; +}; + +struct memory_info { + int num_areas; + uint64_t total_memory; + uint64_t total_32bit_memory; + struct memory_area area[CONFIG_NR_DRAM_BANKS]; +}; + +#define MAX_MTRR_REQUESTS 8 + +/** + * A request for a memory region to be set up in a particular way. These + * requests are processed before board_init_r() is called. They are generally + * optional and can be ignored with some performance impact. + */ +struct mtrr_request { + int type; /* MTRR_TYPE_... */ + uint64_t start; + uint64_t size; +}; + +/* Architecture-specific global data */ +struct arch_global_data { + u64 gdt[X86_GDT_NUM_ENTRIES] __aligned(16); + struct global_data *gd_addr; /* Location of Global Data */ + uint8_t x86; /* CPU family */ + uint8_t x86_vendor; /* CPU vendor */ + uint8_t x86_model; + uint8_t x86_mask; + uint32_t x86_device; + uint64_t tsc_base; /* Initial value returned by rdtsc() */ + unsigned long clock_rate; /* Clock rate of timer in Hz */ + void *new_fdt; /* Relocated FDT */ + uint32_t bist; /* Built-in self test value */ + enum pei_boot_mode_t pei_boot_mode; + const struct pch_gpio_map *gpio_map; /* board GPIO map */ + struct memory_info meminfo; /* Memory information */ + struct pei_memory_info pei_meminfo; /* PEI memory information */ +#ifdef CONFIG_USE_HOB + void *hob_list; /* FSP HOB list */ +#endif + struct mtrr_request mtrr_req[MAX_MTRR_REQUESTS]; + int mtrr_req_count; + int has_mtrr; + /* MRC training data to save for the next boot */ + char *mrc_output; + unsigned int mrc_output_len; + ulong table; /* Table pointer from previous loader */ + int turbo_state; /* Current turbo state */ + struct irq_routing_table *pirq_routing_table; +#ifdef CONFIG_SEABIOS + u32 high_table_ptr; + u32 high_table_limit; +#endif +#ifdef CONFIG_HAVE_ACPI_RESUME + int prev_sleep_state; /* Previous sleep state ACPI_S0/1../5 */ + ulong backup_mem; /* Backup memory address for S3 */ +#endif +}; + +#endif + +#include <asm-generic/global_data.h> + +#ifndef __ASSEMBLY__ +# if defined(CONFIG_EFI_APP) || CONFIG_IS_ENABLED(X86_64) + +/* TODO(sjg@chromium.org): Consider using a fixed register for gd on x86_64 */ +#define gd global_data_ptr + +#define DECLARE_GLOBAL_DATA_PTR extern struct global_data *global_data_ptr +# else +static inline __attribute__((no_instrument_function)) gd_t *get_fs_gd_ptr(void) +{ + gd_t *gd_ptr; + +#if CONFIG_IS_ENABLED(X86_64) + asm volatile("fs mov 0, %0\n" : "=r" (gd_ptr)); +#else + asm volatile("fs movl 0, %0\n" : "=r" (gd_ptr)); +#endif + + return gd_ptr; +} + +#define gd get_fs_gd_ptr() + +#define DECLARE_GLOBAL_DATA_PTR +# endif + +#endif + +#endif /* __ASM_GBL_DATA_H */ |