/* * This file is part of the coreboot project. * * Copyright (C) 2009 coresystems GmbH * Copyright (C) 2013 Google, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA */ #ifndef _CBMEM_H_ #define _CBMEM_H_ #if IS_ENABLED(CONFIG_HAVE_ACPI_RESUME) && \ ! IS_ENABLED(CONFIG_RELOCATABLE_RAMSTAGE) #define HIGH_MEMORY_SAVE (CONFIG_RAMTOP - CONFIG_RAMBASE) #else #define HIGH_MEMORY_SAVE 0 #endif #if IS_ENABLED(CONFIG_HAVE_ACPI_RESUME) && \ defined(CONFIG_HIGH_SCRATCH_MEMORY_SIZE) #define HIGH_MEMORY_SCRATCH CONFIG_HIGH_SCRATCH_MEMORY_SIZE #else #define HIGH_MEMORY_SCRATCH 0 #endif /* Delegation of resume backup memory so we don't have to * (slowly) handle backing up OS memory in romstage.c */ #define CBMEM_BOOT_MODE 0x610 #define CBMEM_RESUME_BACKUP 0x614 #define CBMEM_ID_FREESPACE 0x46524545 #define CBMEM_ID_GDT 0x4c474454 #define CBMEM_ID_ACPI 0x41435049 #define CBMEM_ID_ACPI_GNVS 0x474e5653 #define CBMEM_ID_ACPI_GNVS_PTR 0x474e5650 #define CBMEM_ID_IGD_OPREGION 0x4f444749 #define CBMEM_ID_CBTABLE 0x43425442 #define CBMEM_ID_PIRQ 0x49525154 #define CBMEM_ID_MPTABLE 0x534d5054 #define CBMEM_ID_RESUME 0x5245534d #define CBMEM_ID_RESUME_SCRATCH 0x52455343 #define CBMEM_ID_SMBIOS 0x534d4254 #define CBMEM_ID_TIMESTAMP 0x54494d45 #define CBMEM_ID_MRCDATA 0x4d524344 #define CBMEM_ID_CONSOLE 0x434f4e53 #define CBMEM_ID_ELOG 0x454c4f47 #define CBMEM_ID_COVERAGE 0x47434f56 #define CBMEM_ID_ROMSTAGE_INFO 0x47545352 #define CBMEM_ID_ROMSTAGE_RAM_STACK 0x90357ac4 #define CBMEM_ID_RAMSTAGE 0x9a357a9e #define CBMEM_ID_RAMSTAGE_CACHE 0x9a3ca54e #define CBMEM_ID_ROOT 0xff4007ff #define CBMEM_ID_VBOOT_HANDOFF 0x780074f0 #define CBMEM_ID_CAR_GLOBALS 0xcac4e6a3 #define CBMEM_ID_EHCI_DEBUG 0xe4c1deb9 #define CBMEM_ID_REFCODE 0x04efc0de #define CBMEM_ID_REFCODE_CACHE 0x4efc0de5 #define CBMEM_ID_POWER_STATE 0x50535454 #define CBMEM_ID_SMM_SAVE_SPACE 0x07e9acee #define CBMEM_ID_RAM_OOPS 0x05430095 #define CBMEM_ID_NONE 0x00000000 #define CBMEM_ID_AGESA_RUNTIME 0x41474553 #define CBMEM_ID_HOB_POINTER 0x484f4221 #ifndef __ASSEMBLER__ #include #include struct cbmem_id_to_name { u32 id; const char *name; }; #define CBMEM_ID_TO_NAME_TABLE \ { CBMEM_ID_FREESPACE, "FREE SPACE " }, \ { CBMEM_ID_GDT, "GDT " }, \ { CBMEM_ID_ACPI, "ACPI " }, \ { CBMEM_ID_CBTABLE, "COREBOOT " }, \ { CBMEM_ID_PIRQ, "IRQ TABLE " }, \ { CBMEM_ID_MPTABLE, "SMP TABLE " }, \ { CBMEM_ID_RESUME, "ACPI RESUME" }, \ { CBMEM_ID_RESUME_SCRATCH, "ACPISCRATCH" }, \ { CBMEM_ID_ACPI_GNVS, "ACPI GNVS " }, \ { CBMEM_ID_ACPI_GNVS_PTR, "GNVS PTR " }, \ { CBMEM_ID_SMBIOS, "SMBIOS " }, \ { CBMEM_ID_TIMESTAMP, "TIME STAMP " }, \ { CBMEM_ID_MRCDATA, "MRC DATA " }, \ { CBMEM_ID_CONSOLE, "CONSOLE " }, \ { CBMEM_ID_ELOG, "ELOG " }, \ { CBMEM_ID_COVERAGE, "COVERAGE " }, \ { CBMEM_ID_ROMSTAGE_INFO, "ROMSTAGE " }, \ { CBMEM_ID_ROMSTAGE_RAM_STACK, "ROMSTG STCK" }, \ { CBMEM_ID_RAMSTAGE, "RAMSTAGE " }, \ { CBMEM_ID_RAMSTAGE_CACHE, "RAMSTAGE $ " }, \ { CBMEM_ID_ROOT, "CBMEM ROOT " }, \ { CBMEM_ID_VBOOT_HANDOFF, "VBOOT " }, \ { CBMEM_ID_CAR_GLOBALS, "CAR GLOBALS" }, \ { CBMEM_ID_AGESA_RUNTIME, "AGESA RSVD " }, \ { CBMEM_ID_EHCI_DEBUG, "USBDEBUG " }, \ { CBMEM_ID_REFCODE, "REFCODE " }, \ { CBMEM_ID_SMM_SAVE_SPACE, "SMM BACKUP " }, \ { CBMEM_ID_REFCODE_CACHE, "REFCODE $ " }, \ { CBMEM_ID_POWER_STATE, "POWER STATE" }, \ { CBMEM_ID_RAM_OOPS, "RAMOOPS " }, struct cbmem_entry; #if CONFIG_DYNAMIC_CBMEM /* * The dynamic cbmem infrastructure allows for growing cbmem dynamically as * things are added. It requires an external function, cbmem_top(), to be * implemented by the board or chipset to define the upper address where * cbmem lives. This address is required to be a 32-bit address. Additionally, * the address needs to be consistent in both romstage and ramstage. The * dynamic cbmem infrastructure allocates new regions below the last allocated * region. Regions are defined by a cbmem_entry struct that is opaque. Regions * may be removed, but the last one added is the only that can be removed. * * Dynamic cbmem has two allocators within it. All allocators use a top down * allocation scheme. However, there are 2 modes for each allocation depending * on the requested size. There are large allocations and small allocations. * An allocation is considered to be small when it is less than or equal to * DYN_CBMEM_ALIGN_SIZE / 2. The smaller allocations are fit into a larger * allocation region. */ #define DYN_CBMEM_ALIGN_SIZE (4096) /* By default cbmem is attempted to be recovered. Returns 0 if cbmem was * recovered or 1 if cbmem had to be reinitialized. */ int cbmem_initialize(void); /* Initialize cbmem to be empty. */ void cbmem_initialize_empty(void); /* Return the top address for dynamic cbmem. The address returned needs to * be consistent across romstage and ramstage, and it is required to be * below 4GiB. */ void *cbmem_top(void); /* Add a cbmem entry of a given size and id. These return NULL on failure. The * add function performs a find first and do not check against the original * size. */ const struct cbmem_entry *cbmem_entry_add(u32 id, u64 size); /* Find a cbmem entry of a given id. These return NULL on failure. */ const struct cbmem_entry *cbmem_entry_find(u32 id); /* Remove a region defined by a cbmem_entry. Returns 0 on success, < 0 on * error. Note: A cbmem_entry cannot be removed unless it was the last one * added. */ int cbmem_entry_remove(const struct cbmem_entry *entry); /* cbmem_entry accessors to get pointer and size of a cbmem_entry. */ void *cbmem_entry_start(const struct cbmem_entry *entry); u64 cbmem_entry_size(const struct cbmem_entry *entry); #else /* !CONFIG_DYNAMIC_CBMEM */ /* Allocation with static CBMEM is resolved at build time. We start * with 128kB and conditionally add some of the most greedy CBMEM * table entries. */ #define _CBMEM_SZ_MINIMAL ( 128 * 1024 ) #define _CBMEM_SZ_TOTAL \ (_CBMEM_SZ_MINIMAL + CONFIG_CONSOLE_CBMEM_BUFFER_SIZE + \ HIGH_MEMORY_SAVE + HIGH_MEMORY_SCRATCH) #define HIGH_MEMORY_SIZE ALIGN_UP(_CBMEM_SZ_TOTAL, 0x10000) #ifndef __PRE_RAM__ void set_top_of_ram(uint64_t ramtop); void backup_top_of_ram(uint64_t ramtop); void cbmem_late_set_table(uint64_t base, uint64_t size); #endif void get_cbmem_table(uint64_t *base, uint64_t *size); struct cbmem_entry *get_cbmem_toc(void); static inline const struct cbmem_entry *cbmem_entry_find(uint32_t id) { return NULL; } #endif /* CONFIG_DYNAMIC_CBMEM */ /* Common API between cbmem and dynamic cbmem. */ unsigned long get_top_of_ram(void); /* Returns 0 if old cbmem was recovered. Recovery is only attempted if * s3resume is non-zero. */ int cbmem_recovery(int s3resume); /* Add a cbmem entry of a given size and id. These return NULL on failure. The * add function performs a find first and do not check against the original * size. */ void *cbmem_add(u32 id, u64 size); /* Find a cbmem entry of a given id. These return NULL on failure. */ void *cbmem_find(u32 id); #ifndef __PRE_RAM__ /* Ramstage only functions. */ /* Add the cbmem memory used to the memory map at boot. */ void cbmem_add_bootmem(void); void cbmem_list(void); void cbmem_arch_init(void); void cbmem_print_entry(int n, u32 id, u64 start, u64 size); void cbmem_fail_resume(void); #else static inline void cbmem_arch_init(void) {} static inline void cbmem_fail_resume(void) {} #endif /* __PRE_RAM__ */ #endif /* __ASSEMBLER__ */ #endif /* _CBMEM_H_ */