threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
41 lines
914 B
C
41 lines
914 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_X86_BIOS_EBDA_H
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#define _ASM_X86_BIOS_EBDA_H
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#include <asm/io.h>
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/*
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* Returns physical address of EBDA. Returns 0 if there is no EBDA.
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*/
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static inline unsigned int get_bios_ebda(void)
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{
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/*
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* There is a real-mode segmented pointer pointing to the
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* 4K EBDA area at 0x40E.
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*/
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unsigned int address = *(unsigned short *)phys_to_virt(0x40E);
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address <<= 4;
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return address; /* 0 means none */
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}
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void reserve_bios_regions(void);
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#ifdef CONFIG_X86_CHECK_BIOS_CORRUPTION
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/*
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* This is obviously not a great place for this, but we want to be
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* able to scatter it around anywhere in the kernel.
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*/
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void check_for_bios_corruption(void);
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void start_periodic_check_for_corruption(void);
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#else
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static inline void check_for_bios_corruption(void)
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{
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}
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static inline void start_periodic_check_for_corruption(void)
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{
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}
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#endif
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#endif /* _ASM_X86_BIOS_EBDA_H */
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