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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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ac85227f76
The 'copy_user' symbol can be used to copy from or to userland so we will use two different symbols for these operations. This makes no difference in the existing code, but when the core is operating in EVA mode, different instructions need to be used to read and write to userland address space. The old function has also been renamed to 'copy_kernel' to denote that it is suitable for copy data to and from kernel space. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
85 lines
2.7 KiB
C
85 lines
2.7 KiB
C
/*
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* Export MIPS-specific functions needed for loadable modules.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1996, 97, 98, 99, 2000, 01, 03, 04, 05, 12 by Ralf Baechle
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* Copyright (C) 1999, 2000, 01 Silicon Graphics, Inc.
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*/
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#include <linux/interrupt.h>
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#include <linux/export.h>
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#include <asm/checksum.h>
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#include <linux/mm.h>
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#include <asm/uaccess.h>
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#include <asm/ftrace.h>
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extern void *__bzero(void *__s, size_t __count);
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extern long __strncpy_from_kernel_nocheck_asm(char *__to,
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const char *__from, long __len);
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extern long __strncpy_from_kernel_asm(char *__to, const char *__from,
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long __len);
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extern long __strncpy_from_user_nocheck_asm(char *__to,
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const char *__from, long __len);
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extern long __strncpy_from_user_asm(char *__to, const char *__from,
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long __len);
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extern long __strlen_kernel_nocheck_asm(const char *s);
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extern long __strlen_kernel_asm(const char *s);
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extern long __strlen_user_nocheck_asm(const char *s);
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extern long __strlen_user_asm(const char *s);
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extern long __strnlen_kernel_nocheck_asm(const char *s);
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extern long __strnlen_kernel_asm(const char *s);
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extern long __strnlen_user_nocheck_asm(const char *s);
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extern long __strnlen_user_asm(const char *s);
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/*
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* String functions
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*/
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EXPORT_SYMBOL(memset);
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EXPORT_SYMBOL(memcpy);
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EXPORT_SYMBOL(memmove);
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/*
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* Functions that operate on entire pages. Mostly used by memory management.
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*/
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EXPORT_SYMBOL(clear_page);
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EXPORT_SYMBOL(copy_page);
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/*
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* Userspace access stuff.
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*/
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EXPORT_SYMBOL(__copy_user);
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EXPORT_SYMBOL(__copy_user_inatomic);
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#ifdef CONFIG_EVA
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EXPORT_SYMBOL(__copy_from_user_eva);
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EXPORT_SYMBOL(__copy_in_user_eva);
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EXPORT_SYMBOL(__copy_to_user_eva);
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EXPORT_SYMBOL(__copy_user_inatomic_eva);
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#endif
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EXPORT_SYMBOL(__bzero);
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EXPORT_SYMBOL(__strncpy_from_kernel_nocheck_asm);
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EXPORT_SYMBOL(__strncpy_from_kernel_asm);
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EXPORT_SYMBOL(__strncpy_from_user_nocheck_asm);
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EXPORT_SYMBOL(__strncpy_from_user_asm);
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EXPORT_SYMBOL(__strlen_kernel_nocheck_asm);
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EXPORT_SYMBOL(__strlen_kernel_asm);
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EXPORT_SYMBOL(__strlen_user_nocheck_asm);
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EXPORT_SYMBOL(__strlen_user_asm);
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EXPORT_SYMBOL(__strnlen_kernel_nocheck_asm);
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EXPORT_SYMBOL(__strnlen_kernel_asm);
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EXPORT_SYMBOL(__strnlen_user_nocheck_asm);
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EXPORT_SYMBOL(__strnlen_user_asm);
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EXPORT_SYMBOL(csum_partial);
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EXPORT_SYMBOL(csum_partial_copy_nocheck);
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EXPORT_SYMBOL(__csum_partial_copy_kernel);
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EXPORT_SYMBOL(__csum_partial_copy_to_user);
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EXPORT_SYMBOL(__csum_partial_copy_from_user);
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EXPORT_SYMBOL(invalid_pte_table);
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#ifdef CONFIG_FUNCTION_TRACER
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/* _mcount is defined in arch/mips/kernel/mcount.S */
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EXPORT_SYMBOL(_mcount);
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#endif
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