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/*
* This file is part of the coreboot project.
*
* Copyright 2014 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.
*/
/* This file contains macro definitions for memlayout.ld linker scripts. */
#ifndef __MEMLAYOUT_H
#define __MEMLAYOUT_H
#include <arch/memlayout.h>
#include <vb2_constants.h>
/* Macros that the architecture can override. */
#ifndef ARCH_POINTER_ALIGN_SIZE
#define ARCH_POINTER_ALIGN_SIZE 8
#endif
#ifndef ARCH_CACHELINE_ALIGN_SIZE
#define ARCH_CACHELINE_ALIGN_SIZE 64
#endif
#define STR(x) #x
#define ALIGN_COUNTER(align) \
. = ALIGN(align);
#define SET_COUNTER(name, addr) \
_ = ASSERT(. <= addr, STR(name overlaps the previous region!)); \
. = addr;
#define SYMBOL(name, addr) \
SET_COUNTER(name, addr) \
_##name = .;
#define REGION(name, addr, size, expected_align) \
SYMBOL(name, addr) \
_ = ASSERT(. == ALIGN(expected_align), \
STR(name must be aligned to expected_align!)); \
SYMBOL(e##name, addr + size)
#define ALIAS_REGION(name, alias) \
_##alias = _##name; \
_e##alias = _e##name;
/* Declare according to SRAM/DRAM ranges in SoC hardware-defined address map. */
#define SRAM_START(addr) SYMBOL(sram, addr)
#define SRAM_END(addr) SYMBOL(esram, addr)
#define DRAM_START(addr) SYMBOL(dram, addr)
#define TIMESTAMP(addr, size) \
REGION(timestamp, addr, size, 8) \
_ = ASSERT(size >= 212, "Timestamp region must fit timestamp_cache!");
#define PRERAM_CBMEM_CONSOLE(addr, size) \
REGION(preram_cbmem_console, addr, size, 4)
/* Use either CBFS_CACHE (unified) or both (PRERAM|POSTRAM)_CBFS_CACHE */
#define CBFS_CACHE(addr, size) \
REGION(cbfs_cache, addr, size, 4) \
ALIAS_REGION(cbfs_cache, preram_cbfs_cache) \
ALIAS_REGION(cbfs_cache, postram_cbfs_cache)
#if defined(__PRE_RAM__)
#define PRERAM_CBFS_CACHE(addr, size) \
REGION(preram_cbfs_cache, addr, size, 4) \
ALIAS_REGION(preram_cbfs_cache, cbfs_cache)
#define POSTRAM_CBFS_CACHE(addr, size) \
REGION(postram_cbfs_cache, addr, size, 4)
#else
#define PRERAM_CBFS_CACHE(addr, size) \
REGION(preram_cbfs_cache, addr, size, 4)
#define POSTRAM_CBFS_CACHE(addr, size) \
REGION(postram_cbfs_cache, addr, size, 4) \
ALIAS_REGION(postram_cbfs_cache, cbfs_cache)
#endif
/* Careful: 'INCLUDE <filename>' must always be at the end of the output line */
#if ENV_DECOMPRESSOR
#define DECOMPRESSOR(addr, sz) \
SYMBOL(decompressor, addr) \
_edecompressor = _decompressor + sz; \
_ = ASSERT(_eprogram - _program <= sz, \
STR(decompressor exceeded its allotted size! (sz))); \
INCLUDE "decompressor/lib/program.ld"
#define OVERLAP_DECOMPRESSOR_ROMSTAGE(addr, sz) DECOMPRESSOR(addr, sz)
#define OVERLAP_DECOMPRESSOR_VERSTAGE_ROMSTAGE(addr, sz) \
DECOMPRESSOR(addr, sz)
#else
#define DECOMPRESSOR(addr, sz) \
REGION(decompressor, addr, sz, 1)
#define OVERLAP_DECOMPRESSOR_ROMSTAGE(addr, sz) ROMSTAGE(addr, sz)
#define OVERLAP_DECOMPRESSOR_VERSTAGE_ROMSTAGE(addr, sz) \
OVERLAP_VERSTAGE_ROMSTAGE(addr, sz)
#endif
#if ENV_BOOTBLOCK
#define BOOTBLOCK(addr, sz) \
SYMBOL(bootblock, addr) \
_ebootblock = _bootblock + sz; \
_ = ASSERT(_eprogram - _program <= sz, \
STR(Bootblock exceeded its allotted size! (sz))); \
INCLUDE "bootblock/lib/program.ld"
#else
#define BOOTBLOCK(addr, sz) \
REGION(bootblock, addr, sz, 1)
#endif
#if ENV_ROMSTAGE
#define ROMSTAGE(addr, sz) \
SYMBOL(romstage, addr) \
_eromstage = _romstage + sz; \
_ = ASSERT(_eprogram - _program <= sz, \
STR(Romstage exceeded its allotted size! (sz))); \
INCLUDE "romstage/lib/program.ld"
#else
#define ROMSTAGE(addr, sz) \
REGION(romstage, addr, sz, 1)
#endif
#if ENV_RAMSTAGE
#define RAMSTAGE(addr, sz) \
SYMBOL(ramstage, addr) \
_eramstage = _ramstage + sz; \
_ = ASSERT(_eprogram - _program <= sz, \
STR(Ramstage exceeded its allotted size! (sz))); \
INCLUDE "ramstage/lib/program.ld"
#else
#define RAMSTAGE(addr, sz) \
REGION(ramstage, addr, sz, 1)
#endif
/* VBOOT2_WORK must always use VB2_FIRMWARE_WORKBUF_RECOMMENDED_SIZE for its
* size argument. The constant is imported via vb2_workbuf_size.h. */
#define VBOOT2_WORK(addr, sz) \
REGION(vboot2_work, addr, sz, 16) \
_ = ASSERT(sz == VB2_FIRMWARE_WORKBUF_RECOMMENDED_SIZE, \
STR(vboot2 work buffer size must be equivalent to \
VB2_FIRMWARE_WORKBUF_RECOMMENDED_SIZE! (sz)));
#define VBOOT2_TPM_LOG(addr, size) \
REGION(vboot2_tpm_log, addr, size, 16) \
_ = ASSERT(size >= 2K, "vboot2 tpm log buffer must be at least 2K!");
#if ENV_VERSTAGE
#define VERSTAGE(addr, sz) \
SYMBOL(verstage, addr) \
_everstage = _verstage + sz; \
_ = ASSERT(_eprogram - _program <= sz, \
STR(Verstage exceeded its allotted size! (sz))); \
INCLUDE "verstage/lib/program.ld"
#define OVERLAP_VERSTAGE_ROMSTAGE(addr, size) \
_ = ASSERT(CONFIG(VBOOT_RETURN_FROM_VERSTAGE) == 1, \
"Must set RETURN_FROM_VERSTAGE to overlap romstage."); \
VERSTAGE(addr, size)
#else
#define VERSTAGE(addr, sz) \
REGION(verstage, addr, sz, 1)
#define OVERLAP_VERSTAGE_ROMSTAGE(addr, size) ROMSTAGE(addr, size)
#endif
#if ENV_POSTCAR
#define POSTCAR(addr, sz) \
SYMBOL(postcar, addr) \
_epostcar = _postcar + sz; \
_ = ASSERT(_eprogram - _program <= sz, \
STR(Aftercar exceeded its allotted size! (sz))); \
INCLUDE "postcar/lib/program.ld"
#else
#define POSTCAR(addr, sz) \
REGION(postcar, addr, sz, 1)
#endif
#define WATCHDOG_TOMBSTONE(addr, size) \
REGION(watchdog_tombstone, addr, size, 4) \
_ = ASSERT(size == 4, "watchdog tombstones should be exactly 4 byte!");
#endif /* __MEMLAYOUT_H */
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