d44221f9c8
Its spreading copies got out of sync. And as it is not a standard header but used in commonlib code, it belongs into commonlib. While we are at it, always include it via GCC's `-include` switch. Some Windows and BSD quirk handling went into the util copies. We always guard from redefinitions now to prevent further issues. Change-Id: I850414e6db1d799dce71ff2dc044e6a000ad2552 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/28927 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
79 lines
1.9 KiB
C
79 lines
1.9 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <stdlib.h>
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#include <cbmem.h>
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#include <arch/acpi.h>
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#if IS_ENABLED(CONFIG_LATE_CBMEM_INIT)
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void __weak backup_top_of_low_cacheable(uintptr_t ramtop)
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{
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/* Do nothing. Chipset may have implementation to save ramtop in NVRAM.
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*/
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}
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uintptr_t __weak restore_top_of_low_cacheable(void)
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{
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return 0;
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}
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#endif /* LATE_CBMEM_INIT */
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#if IS_ENABLED(CONFIG_CBMEM_TOP_BACKUP)
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static void *cbmem_top_backup;
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void set_late_cbmem_top(uintptr_t ramtop)
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{
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backup_top_of_low_cacheable(ramtop);
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if (ENV_RAMSTAGE)
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cbmem_top_backup = (void *)ramtop;
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}
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/* Top of CBMEM is at highest usable DRAM address below 4GiB. */
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uintptr_t __weak restore_cbmem_top(void)
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{
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if (IS_ENABLED(CONFIG_LATE_CBMEM_INIT) && ENV_ROMSTAGE)
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if (!acpi_is_wakeup_s3())
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return 0;
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return restore_top_of_low_cacheable();
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}
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void *cbmem_top(void)
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{
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uintptr_t top_backup;
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if (ENV_RAMSTAGE && cbmem_top_backup != NULL)
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return cbmem_top_backup;
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top_backup = restore_cbmem_top();
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if (ENV_RAMSTAGE)
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cbmem_top_backup = (void *)top_backup;
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return (void *)top_backup;
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}
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#endif /* CBMEM_TOP_BACKUP */
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/* Something went wrong, our high memory area got wiped */
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void cbmem_fail_resume(void)
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{
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#if !defined(__PRE_RAM__) && IS_ENABLED(CONFIG_HAVE_ACPI_RESUME)
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/* ACPI resume needs to be cleared in the fail-to-recover case, but that
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* condition is only handled during ramstage. */
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acpi_fail_wakeup();
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#endif
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}
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