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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 | /* SPDX-License-Identifier: Intel */ /* * Copyright (C) 2013, Intel Corporation * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com> */ #ifndef __FSP_SUPPORT_H__ #define __FSP_SUPPORT_H__ #include <signatures.h> #include <asm/fsp/fsp_bootmode.h> #include <asm/fsp/fsp_fv.h> #include <asm/fsp/fsp_hob.h> #include <asm/fsp/fsp_infoheader.h> #include <asm/fsp_arch.h> #include <asm/fsp/fsp_azalia.h> #define FSP_LOWMEM_BASE 0x100000UL #define FSP_HIGHMEM_BASE 0x100000000ULL #define UPD_TERMINATOR 0x55AA /** * fsp_find_header() - Find FSP header offset in FSP image * * Return: the offset of FSP header. If signature is invalid, returns 0. */ struct fsp_header *fsp_find_header(void); /** * fsp_notify() - FSP notification wrapper function * * @fsp_hdr: Pointer to FSP information header * @phase: FSP initialization phase defined in enum fsp_phase * * Return: compatible status code with EFI_STATUS defined in PI spec */ u32 fsp_notify(struct fsp_header *fsp_hdr, u32 phase); /** * fsp_get_usable_lowmem_top() - retrieves the top of usable low memory * * @hob_list: A HOB list pointer. * * Return: Usable low memory top. */ u32 fsp_get_usable_lowmem_top(const void *hob_list); /** * fsp_get_usable_highmem_top() - retrieves the top of usable high memory * * @hob_list: A HOB list pointer. * * Return: Usable high memory top. */ u64 fsp_get_usable_highmem_top(const void *hob_list); /** * fsp_get_reserved_mem_from_guid() - retrieves a special reserved memory region * * @hob_list: A HOB list pointer. * @len: A pointer to the GUID HOB data buffer length. * If the GUID HOB is located, the length will be updated. * @guid: A pointer to the owner guild. * * Return: Reserved region start address. * 0 if this region does not exist. */ u64 fsp_get_reserved_mem_from_guid(const void *hob_list, u64 *len, const efi_guid_t *guid); /** * fsp_get_fsp_reserved_mem() - retrieves the FSP reserved normal memory * * @hob_list: A HOB list pointer. * @len: A pointer to the FSP reserved memory length buffer. * If the GUID HOB is located, the length will be updated. * Return: FSP reserved memory base * 0 if this region does not exist. */ u32 fsp_get_fsp_reserved_mem(const void *hob_list, u32 *len); /** * fsp_get_tseg_reserved_mem() - retrieves the TSEG reserved normal memory * * @hob_list: A HOB list pointer. * @len: A pointer to the TSEG reserved memory length buffer. * If the GUID HOB is located, the length will be updated. * * Return: NULL: Failed to find the TSEG reserved memory. * Return: others: TSEG reserved memory base. */ u32 fsp_get_tseg_reserved_mem(const void *hob_list, u32 *len); /** * fsp_get_nvs_data() - retrieves FSP Non-volatile Storage HOB buffer and size * * @hob_list: A HOB list pointer. * @len: A pointer to the NVS data buffer length. * If the HOB is located, the length will be updated. * * Return: NULL: Failed to find the NVS HOB. * Return: others: FSP NVS data buffer pointer. */ void *fsp_get_nvs_data(const void *hob_list, u32 *len); /** * fsp_get_var_nvs_data() - get FSP variable Non-volatile Storage HOB buffer * * @hob_list: A HOB list pointer. * @len: A pointer to the NVS data buffer length. * If the HOB is located, the length will be updated. * * Return: NULL: Failed to find the NVS HOB. * Return: others: FSP NVS data buffer pointer. */ void *fsp_get_var_nvs_data(const void *hob_list, u32 *len); /** * fsp_get_graphics_info() - retrieves graphics information. * * @hob_list: A HOB list pointer. * @len: A pointer to the graphics info HOB length. * If the HOB is located, the length will be updated. * * Return: NULL: Failed to find the graphics info HOB. * Return: others: A pointer to struct hob_graphics_info. */ void *fsp_get_graphics_info(const void *hob_list, u32 *len); /** * fsp_init_phase_pci() - Tell the FSP that we have completed PCI init * * Return: 0 if OK, -EPERM if the FSP gave an error. */ int fsp_init_phase_pci(void); /** * fsp_scan_for_ram_size() - Scan the HOB list to find the RAM size * * This sets gd->ram_size based on what it finds. * * Return: 0 if OK, -ve on error */ int fsp_scan_for_ram_size(void); /** * fsp_notify() - FSP notification wrapper function * * @fsp_hdr: Pointer to FSP information header * @phase: FSP initialization phase defined in enum fsp_phase * * Return: compatible status code with EFI_STATUS defined in PI spec */ u32 fsp_notify(struct fsp_header *fsp_hdr, u32 phase); #endif |