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39 lines
1.1 KiB
39 lines
1.1 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* Author: Huacai Chen <[email protected]> |
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* Copyright (C) 2020-2022 Loongson Technology Corporation Limited |
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*/ |
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#ifndef __ASM_VDSO_H |
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#define __ASM_VDSO_H |
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#include <linux/mm.h> |
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#include <linux/mm_types.h> |
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#include <vdso/datapage.h> |
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#include <asm/barrier.h> |
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/* |
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* struct loongarch_vdso_info - Details of a VDSO image. |
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* @vdso: Pointer to VDSO image (page-aligned). |
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* @size: Size of the VDSO image (page-aligned). |
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* @off_rt_sigreturn: Offset of the rt_sigreturn() trampoline. |
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* @code_mapping: Special mapping structure for vdso code. |
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* @code_mapping: Special mapping structure for vdso data. |
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* |
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* This structure contains details of a VDSO image, including the image data |
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* and offsets of certain symbols required by the kernel. It is generated as |
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* part of the VDSO build process, aside from the mapping page array, which is |
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* populated at runtime. |
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*/ |
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struct loongarch_vdso_info { |
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void *vdso; |
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unsigned long size; |
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unsigned long offset_sigreturn; |
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struct vm_special_mapping code_mapping; |
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struct vm_special_mapping data_mapping; |
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}; |
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extern struct loongarch_vdso_info vdso_info; |
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#endif /* __ASM_VDSO_H */
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