mirror of
https://github.com/AsahiLinux/u-boot
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
99 lines
2.1 KiB
C
99 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* From Coreboot file device/oprom/realmode/x86.h
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*
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* Copyright (C) 2007 Advanced Micro Devices, Inc.
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* Copyright (C) 2009-2010 coresystems GmbH
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*/
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#ifndef _X86_LIB_BIOS_H
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#define _X86_LIB_BIOS_H
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#include <linux/linkage.h>
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#define REALMODE_BASE 0x600
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#ifdef __ASSEMBLY__
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#define PTR_TO_REAL_MODE(x) (x - asm_realmode_code + REALMODE_BASE)
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#else
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/* Convert a symbol address to our real mode area */
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#define PTR_TO_REAL_MODE(sym)\
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(void *)(REALMODE_BASE + ((char *)&(sym) - (char *)&asm_realmode_code))
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/*
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* The following symbols cannot be used directly. They need to be fixed up
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* to point to the correct address location after the code has been copied
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* to REALMODE_BASE. Absolute symbols are not used because those symbols are
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* relocated by U-Boot.
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*/
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extern unsigned char asm_realmode_call, __realmode_interrupt;
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extern unsigned char asm_realmode_buffer;
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#define DOWNTO8(A) \
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union { \
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struct { \
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union { \
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struct { \
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uint8_t A##l; \
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uint8_t A##h; \
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} __packed; \
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uint16_t A##x; \
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} __packed; \
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uint16_t h##A##x; \
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} __packed; \
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uint32_t e##A##x; \
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} __packed;
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#define DOWNTO16(A) \
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union { \
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struct { \
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uint16_t A; \
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uint16_t h##A; \
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} __packed; \
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uint32_t e##A; \
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} __packed;
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struct eregs {
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DOWNTO8(a);
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DOWNTO8(c);
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DOWNTO8(d);
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DOWNTO8(b);
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DOWNTO16(sp);
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DOWNTO16(bp);
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DOWNTO16(si);
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DOWNTO16(di);
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uint32_t vector;
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uint32_t error_code;
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uint32_t eip;
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uint32_t cs;
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uint32_t eflags;
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};
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struct realmode_idt {
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u16 offset, cs;
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};
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void x86_exception(struct eregs *info);
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/* From x86_asm.S */
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extern unsigned char __idt_handler;
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extern unsigned int __idt_handler_size;
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extern unsigned char asm_realmode_code;
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extern unsigned int asm_realmode_code_size;
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asmlinkage void (*realmode_call)(u32 addr, u32 eax, u32 ebx, u32 ecx, u32 edx,
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u32 esi, u32 edi);
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asmlinkage void (*realmode_interrupt)(u32 intno, u32 eax, u32 ebx, u32 ecx,
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u32 edx, u32 esi, u32 edi);
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int int10_handler(void);
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int int12_handler(void);
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int int16_handler(void);
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int int1a_handler(void);
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#endif /*__ASSEMBLY__ */
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#endif
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