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https://github.com/brain-hackers/u-boot-brain
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x86: fsp: Move common support functions into a common file
Some of this file can be shared between FSP1 and FSP2. Move it into a shared file. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass
Bin Meng
parent
b2d544a15d
commit
62888d840f
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@ -4,3 +4,4 @@
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obj-y += fsp_common.o
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obj-y += fsp_dram.o
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obj-y += fsp_support.o
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176
arch/x86/lib/fsp/fsp_support.c
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176
arch/x86/lib/fsp/fsp_support.c
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@ -0,0 +1,176 @@
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// SPDX-License-Identifier: Intel
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/*
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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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#include <common.h>
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#include <asm/fsp1/fsp_support.h>
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#include <asm/post.h>
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u32 fsp_get_usable_lowmem_top(const void *hob_list)
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{
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const struct hob_header *hdr;
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struct hob_res_desc *res_desc;
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phys_addr_t phys_start;
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u32 top;
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#ifdef CONFIG_FSP_BROKEN_HOB
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struct hob_mem_alloc *res_mem;
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phys_addr_t mem_base = 0;
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#endif
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/* Get the HOB list for processing */
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hdr = hob_list;
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/* * Collect memory ranges */
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top = FSP_LOWMEM_BASE;
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while (!end_of_hob(hdr)) {
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if (hdr->type == HOB_TYPE_RES_DESC) {
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res_desc = (struct hob_res_desc *)hdr;
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if (res_desc->type == RES_SYS_MEM) {
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phys_start = res_desc->phys_start;
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/* Need memory above 1MB to be collected here */
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if (phys_start >= FSP_LOWMEM_BASE &&
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phys_start < (phys_addr_t)FSP_HIGHMEM_BASE)
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top += (u32)(res_desc->len);
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}
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}
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#ifdef CONFIG_FSP_BROKEN_HOB
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/*
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* Find out the lowest memory base address allocated by FSP
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* for the boot service data
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*/
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if (hdr->type == HOB_TYPE_MEM_ALLOC) {
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res_mem = (struct hob_mem_alloc *)hdr;
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if (!mem_base)
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mem_base = res_mem->mem_base;
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if (res_mem->mem_base < mem_base)
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mem_base = res_mem->mem_base;
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}
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#endif
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hdr = get_next_hob(hdr);
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}
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#ifdef CONFIG_FSP_BROKEN_HOB
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/*
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* Check whether the memory top address is below the FSP HOB list.
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* If not, use the lowest memory base address allocated by FSP as
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* the memory top address. This is to prevent U-Boot relocation
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* overwrites the important boot service data which is used by FSP,
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* otherwise the subsequent call to fsp_notify() will fail.
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*/
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if (top > (u32)hob_list) {
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debug("Adjust memory top address due to a buggy FSP\n");
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top = (u32)mem_base;
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}
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#endif
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return 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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const struct hob_header *hdr;
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struct hob_res_desc *res_desc;
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phys_addr_t phys_start;
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u64 top;
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/* Get the HOB list for processing */
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hdr = hob_list;
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/* Collect memory ranges */
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top = FSP_HIGHMEM_BASE;
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while (!end_of_hob(hdr)) {
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if (hdr->type == HOB_TYPE_RES_DESC) {
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res_desc = (struct hob_res_desc *)hdr;
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if (res_desc->type == RES_SYS_MEM) {
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phys_start = res_desc->phys_start;
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/* Need memory above 4GB to be collected here */
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if (phys_start >= (phys_addr_t)FSP_HIGHMEM_BASE)
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top += (u32)(res_desc->len);
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}
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}
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hdr = get_next_hob(hdr);
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}
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return top;
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}
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u64 fsp_get_reserved_mem_from_guid(const void *hob_list, u64 *len,
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const efi_guid_t *guid)
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{
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const struct hob_header *hdr;
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struct hob_res_desc *res_desc;
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/* Get the HOB list for processing */
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hdr = hob_list;
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/* Collect memory ranges */
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while (!end_of_hob(hdr)) {
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if (hdr->type == HOB_TYPE_RES_DESC) {
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res_desc = (struct hob_res_desc *)hdr;
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if (res_desc->type == RES_MEM_RESERVED) {
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if (!guidcmp(&res_desc->owner, guid)) {
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if (len)
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*len = (u32)(res_desc->len);
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return (u64)(res_desc->phys_start);
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}
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}
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}
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hdr = get_next_hob(hdr);
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}
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return 0;
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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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const efi_guid_t guid = FSP_HOB_RESOURCE_OWNER_FSP_GUID;
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u64 length;
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u32 base;
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base = (u32)fsp_get_reserved_mem_from_guid(hob_list,
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&length, &guid);
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if (len && base)
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*len = (u32)length;
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return 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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const efi_guid_t guid = FSP_HOB_RESOURCE_OWNER_TSEG_GUID;
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u64 length;
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u32 base;
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base = (u32)fsp_get_reserved_mem_from_guid(hob_list,
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&length, &guid);
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if (len && base)
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*len = (u32)length;
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return base;
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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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const efi_guid_t guid = FSP_NON_VOLATILE_STORAGE_HOB_GUID;
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return hob_get_guid_hob_data(hob_list, len, &guid);
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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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const efi_guid_t guid = FSP_BOOTLOADER_TEMP_MEM_HOB_GUID;
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return hob_get_guid_hob_data(hob_list, len, &guid);
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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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const efi_guid_t guid = FSP_GRAPHICS_INFO_HOB_GUID;
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return hob_get_guid_hob_data(hob_list, len, &guid);
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}
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@ -197,170 +197,3 @@ u32 fsp_notify(struct fsp_header *fsp_hdr, u32 phase)
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return status;
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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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const struct hob_header *hdr;
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struct hob_res_desc *res_desc;
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phys_addr_t phys_start;
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u32 top;
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#ifdef CONFIG_FSP_BROKEN_HOB
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struct hob_mem_alloc *res_mem;
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phys_addr_t mem_base = 0;
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#endif
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/* Get the HOB list for processing */
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hdr = hob_list;
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/* * Collect memory ranges */
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top = FSP_LOWMEM_BASE;
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while (!end_of_hob(hdr)) {
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if (hdr->type == HOB_TYPE_RES_DESC) {
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res_desc = (struct hob_res_desc *)hdr;
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if (res_desc->type == RES_SYS_MEM) {
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phys_start = res_desc->phys_start;
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/* Need memory above 1MB to be collected here */
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if (phys_start >= FSP_LOWMEM_BASE &&
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phys_start < (phys_addr_t)FSP_HIGHMEM_BASE)
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top += (u32)(res_desc->len);
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}
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}
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#ifdef CONFIG_FSP_BROKEN_HOB
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/*
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* Find out the lowest memory base address allocated by FSP
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* for the boot service data
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*/
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if (hdr->type == HOB_TYPE_MEM_ALLOC) {
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res_mem = (struct hob_mem_alloc *)hdr;
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if (!mem_base)
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mem_base = res_mem->mem_base;
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if (res_mem->mem_base < mem_base)
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mem_base = res_mem->mem_base;
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}
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#endif
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hdr = get_next_hob(hdr);
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}
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#ifdef CONFIG_FSP_BROKEN_HOB
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/*
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* Check whether the memory top address is below the FSP HOB list.
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* If not, use the lowest memory base address allocated by FSP as
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* the memory top address. This is to prevent U-Boot relocation
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* overwrites the important boot service data which is used by FSP,
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* otherwise the subsequent call to fsp_notify() will fail.
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*/
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if (top > (u32)hob_list) {
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debug("Adjust memory top address due to a buggy FSP\n");
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top = (u32)mem_base;
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}
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#endif
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return 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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const struct hob_header *hdr;
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struct hob_res_desc *res_desc;
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phys_addr_t phys_start;
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u64 top;
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/* Get the HOB list for processing */
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hdr = hob_list;
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/* Collect memory ranges */
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top = FSP_HIGHMEM_BASE;
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while (!end_of_hob(hdr)) {
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if (hdr->type == HOB_TYPE_RES_DESC) {
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res_desc = (struct hob_res_desc *)hdr;
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if (res_desc->type == RES_SYS_MEM) {
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phys_start = res_desc->phys_start;
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/* Need memory above 4GB to be collected here */
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if (phys_start >= (phys_addr_t)FSP_HIGHMEM_BASE)
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top += (u32)(res_desc->len);
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}
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}
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hdr = get_next_hob(hdr);
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}
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return top;
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}
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u64 fsp_get_reserved_mem_from_guid(const void *hob_list, u64 *len,
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const efi_guid_t *guid)
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{
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const struct hob_header *hdr;
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struct hob_res_desc *res_desc;
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/* Get the HOB list for processing */
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hdr = hob_list;
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/* Collect memory ranges */
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while (!end_of_hob(hdr)) {
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if (hdr->type == HOB_TYPE_RES_DESC) {
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res_desc = (struct hob_res_desc *)hdr;
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if (res_desc->type == RES_MEM_RESERVED) {
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if (!guidcmp(&res_desc->owner, guid)) {
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if (len)
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*len = (u32)(res_desc->len);
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return (u64)(res_desc->phys_start);
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}
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}
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}
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hdr = get_next_hob(hdr);
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}
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return 0;
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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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const efi_guid_t guid = FSP_HOB_RESOURCE_OWNER_FSP_GUID;
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u64 length;
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u32 base;
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base = (u32)fsp_get_reserved_mem_from_guid(hob_list,
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&length, &guid);
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if ((len != 0) && (base != 0))
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*len = (u32)length;
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return 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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const efi_guid_t guid = FSP_HOB_RESOURCE_OWNER_TSEG_GUID;
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u64 length;
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u32 base;
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base = (u32)fsp_get_reserved_mem_from_guid(hob_list,
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&length, &guid);
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if ((len != 0) && (base != 0))
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*len = (u32)length;
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return base;
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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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const efi_guid_t guid = FSP_NON_VOLATILE_STORAGE_HOB_GUID;
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return hob_get_guid_hob_data(hob_list, len, &guid);
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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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const efi_guid_t guid = FSP_BOOTLOADER_TEMP_MEM_HOB_GUID;
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return hob_get_guid_hob_data(hob_list, len, &guid);
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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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const efi_guid_t guid = FSP_GRAPHICS_INFO_HOB_GUID;
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return hob_get_guid_hob_data(hob_list, len, &guid);
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}
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