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This adds a new HOB type for graphics information introduced in FSP spec 1.1. When graphics capability is included in FSP and enabled, FSP produces an FSP_GRAPHICS_INFO_HOB as described in the EFI PI specification which provides information about the graphics mode and framebuffer. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
223 lines
6.3 KiB
C
223 lines
6.3 KiB
C
/*
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* Copyright (C) 2013, Intel Corporation
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* Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
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*
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* SPDX-License-Identifier: Intel
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*/
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#ifndef __FSP_SUPPORT_H__
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#define __FSP_SUPPORT_H__
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#include "fsp_types.h"
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#include "fsp_fv.h"
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#include "fsp_ffs.h"
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#include "fsp_api.h"
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#include "fsp_hob.h"
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#include "fsp_infoheader.h"
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#include "fsp_bootmode.h"
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#include <asm/arch/fsp/fsp_vpd.h>
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#include <asm/arch/fsp/fsp_configs.h>
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#define FSP_LOWMEM_BASE 0x100000UL
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#define FSP_HIGHMEM_BASE 0x100000000ULL
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#define UPD_TERMINATOR 0x55AA
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/**
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* FSP Continuation assembly helper routine
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*
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* This routine jumps to the C version of FSP continuation function
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*/
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void asm_continuation(void);
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/**
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* FSP initialization complete
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*
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* This is the function that indicates FSP initialization is complete and jumps
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* back to the bootloader with HOB list pointer as the parameter.
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*
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* @hob_list: HOB list pointer
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*/
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void fsp_init_done(void *hob_list);
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/**
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* FSP Continuation function
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*
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* @status: Always 0
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* @hob_list: HOB list pointer
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*
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* @retval: Never returns
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*/
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void fsp_continue(u32 status, void *hob_list);
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/**
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* Find FSP header offset in FSP image
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*
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* @retval: the offset of FSP header. If signature is invalid, returns 0.
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*/
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struct fsp_header *find_fsp_header(void);
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/**
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* FSP initialization wrapper function.
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*
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* @stack_top: bootloader stack top address
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* @boot_mode: boot mode defined in fsp_bootmode.h
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* @nvs_buf: Non-volatile memory buffer pointer
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*/
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void fsp_init(u32 stack_top, u32 boot_mode, void *nvs_buf);
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/**
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* FSP notification wrapper function
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*
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* @fsp_hdr: Pointer to FSP information header
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* @phase: FSP initialization phase defined in enum fsp_phase
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*
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* @retval: compatible status code with EFI_STATUS defined in PI spec
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*/
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u32 fsp_notify(struct fsp_header *fsp_hdr, u32 phase);
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/**
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* This function retrieves the top of usable low memory.
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*
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* @hob_list: A HOB list pointer.
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*
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* @retval: Usable low memory top.
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*/
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u32 fsp_get_usable_lowmem_top(const void *hob_list);
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/**
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* This function retrieves the top of usable high memory.
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*
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* @hob_list: A HOB list pointer.
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*
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* @retval: Usable high memory top.
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*/
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u64 fsp_get_usable_highmem_top(const void *hob_list);
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/**
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* This function retrieves a special reserved memory region.
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*
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* @hob_list: A HOB list pointer.
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* @len: A pointer to the GUID HOB data buffer length.
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* If the GUID HOB is located, the length will be updated.
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* @guid: A pointer to the owner guild.
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*
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* @retval: Reserved region start address.
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* 0 if this region does not exist.
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*/
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u64 fsp_get_reserved_mem_from_guid(const void *hob_list,
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u64 *len, struct efi_guid *guid);
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/**
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* This function retrieves the FSP reserved normal memory.
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*
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* @hob_list: A HOB list pointer.
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* @len: A pointer to the FSP reserved memory length buffer.
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* If the GUID HOB is located, the length will be updated.
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* @retval: FSP reserved memory base
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* 0 if this region does not exist.
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*/
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u32 fsp_get_fsp_reserved_mem(const void *hob_list, u32 *len);
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/**
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* This function retrieves the TSEG reserved normal memory.
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*
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* @hob_list: A HOB list pointer.
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* @len: A pointer to the TSEG reserved memory length buffer.
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* If the GUID HOB is located, the length will be updated.
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*
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* @retval NULL: Failed to find the TSEG reserved memory.
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* @retval others: TSEG reserved memory base.
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*/
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u32 fsp_get_tseg_reserved_mem(const void *hob_list, u32 *len);
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/**
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* Returns the next instance of a HOB type from the starting HOB.
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*
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* @type: HOB type to search
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* @hob_list: A pointer to the HOB list
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*
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* @retval: A HOB object with matching type; Otherwise NULL.
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*/
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const struct hob_header *fsp_get_next_hob(uint type, const void *hob_list);
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/**
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* Returns the next instance of the matched GUID HOB from the starting HOB.
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*
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* @guid: GUID to search
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* @hob_list: A pointer to the HOB list
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*
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* @retval: A HOB object with matching GUID; Otherwise NULL.
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*/
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const struct hob_header *fsp_get_next_guid_hob(const struct efi_guid *guid,
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const void *hob_list);
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/**
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* This function retrieves a GUID HOB data buffer and size.
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*
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* @hob_list: A HOB list pointer.
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* @len: A pointer to the GUID HOB data buffer length.
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* If the GUID HOB is located, the length will be updated.
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* @guid A pointer to HOB GUID.
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*
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* @retval NULL: Failed to find the GUID HOB.
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* @retval others: GUID HOB data buffer pointer.
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*/
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void *fsp_get_guid_hob_data(const void *hob_list, u32 *len,
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struct efi_guid *guid);
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/**
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* This function retrieves FSP Non-volatile Storage HOB buffer and size.
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*
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* @hob_list: A HOB list pointer.
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* @len: A pointer to the NVS data buffer length.
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* If the HOB is located, the length will be updated.
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*
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* @retval NULL: Failed to find the NVS HOB.
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* @retval others: FSP NVS data buffer pointer.
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*/
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void *fsp_get_nvs_data(const void *hob_list, u32 *len);
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/**
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* This function retrieves Bootloader temporary stack buffer and size.
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*
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* @hob_list: A HOB list pointer.
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* @len: A pointer to the bootloader temporary stack length.
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* If the HOB is located, the length will be updated.
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*
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* @retval NULL: Failed to find the bootloader temporary stack HOB.
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* @retval others: Bootloader temporary stackbuffer pointer.
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*/
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void *fsp_get_bootloader_tmp_mem(const void *hob_list, u32 *len);
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/**
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* This function retrieves graphics information.
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*
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* @hob_list: A HOB list pointer.
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* @len: A pointer to the graphics info HOB length.
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* If the HOB is located, the length will be updated.
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*
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* @retval NULL: Failed to find the graphics info HOB.
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* @retval others: A pointer to struct hob_graphics_info.
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*/
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void *fsp_get_graphics_info(const void *hob_list, u32 *len);
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/**
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* This function overrides the default configurations of FSP.
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*
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* @config: A pointer to the FSP configuration data structure
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* @rt_buf: A pointer to the FSP runtime buffer data structure
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*
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* @return: None
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*/
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void update_fsp_configs(struct fsp_config_data *config,
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struct fspinit_rtbuf *rt_buf);
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/**
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* fsp_init_phase_pci() - Tell the FSP that we have completed PCI init
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*
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* @return 0 if OK, -EPERM if the FSP gave an error.
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*/
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int fsp_init_phase_pci(void);
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#endif
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