mirror of
https://github.com/AsahiLinux/u-boot
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2db9374561
Rather than keeping track of the Global Descriptor Table in its own memory we may as well put it in global_data with everything else. As a first step, stop using the separately allocated GDT. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
110 lines
2.5 KiB
C
110 lines
2.5 KiB
C
/*
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* (C) Copyright 2002-2010
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __ASM_GBL_DATA_H
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#define __ASM_GBL_DATA_H
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#ifndef __ASSEMBLY__
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#include <asm/processor.h>
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enum pei_boot_mode_t {
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PEI_BOOT_NONE = 0,
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PEI_BOOT_SOFT_RESET,
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PEI_BOOT_RESUME,
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};
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struct memory_area {
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uint64_t start;
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uint64_t size;
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};
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struct memory_info {
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int num_areas;
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uint64_t total_memory;
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uint64_t total_32bit_memory;
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struct memory_area area[CONFIG_NR_DRAM_BANKS];
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};
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#define MAX_MTRR_REQUESTS 8
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/**
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* A request for a memory region to be set up in a particular way. These
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* requests are processed before board_init_r() is called. They are generally
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* optional and can be ignored with some performance impact.
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*/
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struct mtrr_request {
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int type; /* MTRR_TYPE_... */
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uint64_t start;
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uint64_t size;
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};
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/* Architecture-specific global data */
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struct arch_global_data {
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u64 gdt[X86_GDT_NUM_ENTRIES] __aligned(16);
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struct global_data *gd_addr; /* Location of Global Data */
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uint8_t x86; /* CPU family */
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uint8_t x86_vendor; /* CPU vendor */
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uint8_t x86_model;
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uint8_t x86_mask;
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uint32_t x86_device;
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uint64_t tsc_base; /* Initial value returned by rdtsc() */
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uint32_t tsc_base_kclocks; /* Initial tsc as a kclocks value */
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uint32_t tsc_prev; /* For show_boot_progress() */
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uint32_t tsc_mhz; /* TSC frequency in MHz */
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void *new_fdt; /* Relocated FDT */
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uint32_t bist; /* Built-in self test value */
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enum pei_boot_mode_t pei_boot_mode;
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const struct pch_gpio_map *gpio_map; /* board GPIO map */
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struct memory_info meminfo; /* Memory information */
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#ifdef CONFIG_HAVE_FSP
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void *hob_list; /* FSP HOB list */
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#endif
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struct mtrr_request mtrr_req[MAX_MTRR_REQUESTS];
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int mtrr_req_count;
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int has_mtrr;
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/* MRC training data to save for the next boot */
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char *mrc_output;
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unsigned int mrc_output_len;
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ulong table; /* Table pointer from previous loader */
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};
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#endif
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#include <asm-generic/global_data.h>
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#ifndef __ASSEMBLY__
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# ifdef CONFIG_EFI_APP
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#define gd global_data_ptr
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#define DECLARE_GLOBAL_DATA_PTR extern struct global_data *global_data_ptr
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# else
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static inline __attribute__((no_instrument_function)) gd_t *get_fs_gd_ptr(void)
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{
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gd_t *gd_ptr;
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asm volatile("fs movl 0, %0\n" : "=r" (gd_ptr));
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return gd_ptr;
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}
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#define gd get_fs_gd_ptr()
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#define DECLARE_GLOBAL_DATA_PTR
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# endif
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#endif
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/*
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* Our private Global Data Flags
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*/
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#define GD_FLG_COLD_BOOT 0x10000 /* Cold Boot */
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#define GD_FLG_WARM_BOOT 0x20000 /* Warm Boot */
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#endif /* __ASM_GBL_DATA_H */
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