1e37c9ca46
This patch adds a new CBFS "mcache" (metadata cache) -- a memory buffer that stores the headers of all CBFS files. Similar to the existing FMAP cache, this cache should reduce the amount of SPI accesses we need to do every boot: rather than having to re-read all CBFS headers from SPI flash every time we're looking for a file, we can just walk the same list in this in-memory copy and finally use it to directly access the flash at the right position for the file data. This patch adds the code to support the cache but doesn't enable it on any platform. The next one will turn it on by default. Change-Id: I5b1084bfdad1c6ab0ee1b143ed8dd796827f4c65 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38423 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
195 lines
5.7 KiB
C
195 lines
5.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* This file contains macro definitions for memlayout.ld linker scripts. */
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#ifndef __MEMLAYOUT_H
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#define __MEMLAYOUT_H
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#include <arch/memlayout.h>
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#include <vb2_constants.h>
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#include "fmap_config.h"
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/* Macros that the architecture can override. */
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#ifndef ARCH_POINTER_ALIGN_SIZE
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#define ARCH_POINTER_ALIGN_SIZE 8
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#endif
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#ifndef ARCH_CACHELINE_ALIGN_SIZE
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#define ARCH_CACHELINE_ALIGN_SIZE 64
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#endif
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#define STR(x) XSTR(x)
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#define XSTR(x) #x
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#define ALIGN_COUNTER(align) \
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. = ALIGN(align);
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#define SET_COUNTER(name, addr) \
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_ = ASSERT(. <= addr, STR(name overlaps the previous region!)); \
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. = addr;
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#define SYMBOL(name, addr) \
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SET_COUNTER(name, addr) \
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_##name = .;
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#define REGION(name, addr, size, expected_align) \
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SYMBOL(name, addr) \
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_ = ASSERT(. == ALIGN(expected_align), \
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STR(name must be aligned to expected_align!)); \
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SYMBOL(e##name, addr + size)
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#define ALIAS_REGION(name, alias) \
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_##alias = _##name; \
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_e##alias = _e##name;
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/* Declare according to SRAM/DRAM ranges in SoC hardware-defined address map. */
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#define SRAM_START(addr) SYMBOL(sram, addr)
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#define SRAM_END(addr) SYMBOL(esram, addr)
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#define DRAM_START(addr) SYMBOL(dram, addr)
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#define TIMESTAMP(addr, size) \
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REGION(timestamp, addr, size, 8) \
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_ = ASSERT(size >= 212, "Timestamp region must fit timestamp_cache!");
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#define PRERAM_CBMEM_CONSOLE(addr, size) \
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REGION(preram_cbmem_console, addr, size, 4)
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#define EARLYRAM_STACK(addr, size) \
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REGION(earlyram_stack, addr, size, ARCH_STACK_ALIGN_SIZE)
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/* Use either CBFS_CACHE (unified) or both (PRERAM|POSTRAM)_CBFS_CACHE */
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#define CBFS_CACHE(addr, size) \
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REGION(cbfs_cache, addr, size, 4) \
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ALIAS_REGION(cbfs_cache, preram_cbfs_cache) \
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ALIAS_REGION(cbfs_cache, postram_cbfs_cache)
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#define FMAP_CACHE(addr, sz) \
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REGION(fmap_cache, addr, sz, 4) \
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_ = ASSERT(sz >= FMAP_SIZE, \
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STR(FMAP does not fit in FMAP_CACHE! (sz < FMAP_SIZE)));
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#define CBFS_MCACHE(addr, sz) \
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REGION(cbfs_mcache, addr, sz, 4)
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#if ENV_ROMSTAGE_OR_BEFORE
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#define PRERAM_CBFS_CACHE(addr, size) \
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REGION(preram_cbfs_cache, addr, size, 4) \
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ALIAS_REGION(preram_cbfs_cache, cbfs_cache)
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#define POSTRAM_CBFS_CACHE(addr, size) \
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REGION(postram_cbfs_cache, addr, size, 4)
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#else
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#define PRERAM_CBFS_CACHE(addr, size) \
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REGION(preram_cbfs_cache, addr, size, 4)
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#define POSTRAM_CBFS_CACHE(addr, size) \
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REGION(postram_cbfs_cache, addr, size, 4) \
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ALIAS_REGION(postram_cbfs_cache, cbfs_cache)
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#endif
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/* Careful: 'INCLUDE <filename>' must always be at the end of the output line */
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#if ENV_DECOMPRESSOR
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#define DECOMPRESSOR(addr, sz) \
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SYMBOL(decompressor, addr) \
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_edecompressor = _decompressor + sz; \
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_ = ASSERT(_eprogram - _program <= sz, \
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STR(decompressor exceeded its allotted size! (sz))); \
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INCLUDE "decompressor/lib/program.ld"
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#define OVERLAP_DECOMPRESSOR_ROMSTAGE(addr, sz) DECOMPRESSOR(addr, sz)
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#define OVERLAP_DECOMPRESSOR_VERSTAGE_ROMSTAGE(addr, sz) \
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DECOMPRESSOR(addr, sz)
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#else
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#define DECOMPRESSOR(addr, sz) \
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REGION(decompressor, addr, sz, 1)
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#define OVERLAP_DECOMPRESSOR_ROMSTAGE(addr, sz) ROMSTAGE(addr, sz)
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#define OVERLAP_DECOMPRESSOR_VERSTAGE_ROMSTAGE(addr, sz) \
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OVERLAP_VERSTAGE_ROMSTAGE(addr, sz)
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#endif
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#if ENV_BOOTBLOCK
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#define BOOTBLOCK(addr, sz) \
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SYMBOL(bootblock, addr) \
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_ebootblock = _bootblock + sz; \
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_ = ASSERT(_eprogram - _program <= sz, \
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STR(Bootblock exceeded its allotted size! (sz))); \
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INCLUDE "bootblock/lib/program.ld"
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#else
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#define BOOTBLOCK(addr, sz) \
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REGION(bootblock, addr, sz, 1)
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#endif
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#if ENV_ROMSTAGE
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#define ROMSTAGE(addr, sz) \
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SYMBOL(romstage, addr) \
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_eromstage = _romstage + sz; \
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_ = ASSERT(_eprogram - _program <= sz, \
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STR(Romstage exceeded its allotted size! (sz))); \
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INCLUDE "romstage/lib/program.ld"
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#else
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#define ROMSTAGE(addr, sz) \
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REGION(romstage, addr, sz, 1)
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#endif
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#if ENV_RAMSTAGE
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#define RAMSTAGE(addr, sz) \
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SYMBOL(ramstage, addr) \
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_eramstage = _ramstage + sz; \
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_ = ASSERT(_eprogram - _program <= sz, \
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STR(Ramstage exceeded its allotted size! (sz))); \
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INCLUDE "ramstage/lib/program.ld"
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#else
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#define RAMSTAGE(addr, sz) \
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REGION(ramstage, addr, sz, 1)
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#endif
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/* VBOOT2_WORK must always use VB2_FIRMWARE_WORKBUF_RECOMMENDED_SIZE for its
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* size argument. The constant is imported via vb2_workbuf_size.h. */
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#define VBOOT2_WORK(addr, sz) \
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REGION(vboot2_work, addr, sz, 16) \
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_ = ASSERT(sz == VB2_FIRMWARE_WORKBUF_RECOMMENDED_SIZE, \
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STR(vboot2 work buffer size must be equivalent to \
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VB2_FIRMWARE_WORKBUF_RECOMMENDED_SIZE! (sz)));
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#define TPM_TCPA_LOG(addr, size) \
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REGION(tpm_tcpa_log, addr, size, 16) \
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_ = ASSERT(size >= 2K, "tpm tcpa log buffer must be at least 2K!");
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#if ENV_SEPARATE_VERSTAGE
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#define VERSTAGE(addr, sz) \
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SYMBOL(verstage, addr) \
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_everstage = _verstage + sz; \
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_ = ASSERT(_eprogram - _program <= sz, \
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STR(Verstage exceeded its allotted size! (sz))); \
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INCLUDE "verstage/lib/program.ld"
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#define OVERLAP_VERSTAGE_ROMSTAGE(addr, size) \
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_ = ASSERT(CONFIG(VBOOT_RETURN_FROM_VERSTAGE) == 1, \
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"Must set RETURN_FROM_VERSTAGE to overlap romstage."); \
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VERSTAGE(addr, size)
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#else
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#define VERSTAGE(addr, sz) \
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REGION(verstage, addr, sz, 1)
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#define OVERLAP_VERSTAGE_ROMSTAGE(addr, size) ROMSTAGE(addr, size)
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#endif
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#if ENV_POSTCAR
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#define POSTCAR(addr, sz) \
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SYMBOL(postcar, addr) \
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_epostcar = _postcar + sz; \
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_ = ASSERT(_eprogram - _program <= sz, \
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STR(Aftercar exceeded its allotted size! (sz))); \
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INCLUDE "postcar/lib/program.ld"
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#else
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#define POSTCAR(addr, sz) \
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REGION(postcar, addr, sz, 1)
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#endif
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#define WATCHDOG_TOMBSTONE(addr, size) \
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REGION(watchdog_tombstone, addr, size, 4) \
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_ = ASSERT(size == 4, "watchdog tombstones should be exactly 4 byte!");
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#endif /* __MEMLAYOUT_H */
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