linux_dsm_epyc7002/arch/nds32/include/asm/syscalls.h

/* SPDX-License-Identifier: GPL-2.0 */
// Copyright (C) 2005-2017 Andes Technology Corporation

#ifndef __ASM_NDS32_SYSCALLS_H
#define __ASM_NDS32_SYSCALLS_H

asmlinkage long sys_cacheflush(unsigned long addr, unsigned long len, unsigned int op);
asmlinkage long sys_fadvise64_64_wrapper(int fd, int advice, loff_t offset, loff_t len);
asmlinkage long sys_rt_sigreturn_wrapper(void);
asmlinkage long sys_udftrap(int option);

#include <asm-generic/syscalls.h>

#endif /* __ASM_NDS32_SYSCALLS_H */
nds32: Use the correct style for SPDX License Identifier This patch corrects the SPDX License Identifier style in the nds32 Hardware Architecture related files. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com> Acked-by: Greentime Hu <greentime@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> 2019-04-16 22:24:35 +07:00			`/* SPDX-License-Identifier: GPL-2.0 */`
nds32: System calls handling This patch adds support for system calls. Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> 2017-10-25 09:37:49 +07:00			`// Copyright (C) 2005-2017 Andes Technology Corporation`

			`#ifndef __ASM_NDS32_SYSCALLS_H`
			`#define __ASM_NDS32_SYSCALLS_H`

			`asmlinkage long sys_cacheflush(unsigned long addr, unsigned long len, unsigned int op);`
			`asmlinkage long sys_fadvise64_64_wrapper(int fd, int advice, loff_t offset, loff_t len);`
			`asmlinkage long sys_rt_sigreturn_wrapper(void);`
nds32: support denormalized result through FP emulator Currently, the nds32 FPU dose not support the arithmetic of denormalized number. When the nds32 FPU finds the result of the instruction is a denormlized number, the nds32 FPU considers it to be an underflow condition and rounds the result to an appropriate number. It may causes some loss of precision. This commit proposes a solution to re-execute the instruction by the FPU emulator to enhance the precision. To transfer calculations from user space to kernel space, this feature will enable the underflow exception trap by default. Enabling this feature may cause some side effects: 1. Performance loss due to extra FPU exception 2. Need another scheme to control real underflow trap A new parameter, UDF_trap, which is belong to FPU context is used to control underflow trap. User can configure this feature via CONFIG_SUPPORT_DENORMAL_ARITHMETIC Signed-off-by: Vincent Chen <vincentc@andestech.com> Acked-by: Greentime Hu <greentime@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> 2018-11-22 10:14:36 +07:00			`asmlinkage long sys_udftrap(int option);`
nds32: System calls handling This patch adds support for system calls. Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> 2017-10-25 09:37:49 +07:00
			`#include <asm-generic/syscalls.h>`

			`#endif /* __ASM_NDS32_SYSCALLS_H */`