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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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bf24168293
Linux kernel has provided some apis for arch signal's implementation. For example: restore_saved_sigmask() set_current_blocked() restore_altstack() But in last version of csky signal.c didn't use them and some codes are confusing, so reconstruct signal.c with reference to riscv's code. Now csky signal.c implementation are very close to riscv and we can get the following benefits: - Clear code structure - The signal code of riscv and csky can be reviewed together - Promoting the unification of arch's signal implementation Also modified the related code in entry.S Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Arnd Bergmann <arnd@arndb.de>
27 lines
565 B
C
27 lines
565 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
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#ifndef __ASM_CSKY_REGDEF_H
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#define __ASM_CSKY_REGDEF_H
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#define syscallid r7
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#define regs_syscallid(regs) regs->regs[3]
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/*
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* PSR format:
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* | 31 | 30-24 | 23-16 | 15 14 | 13-10 | 9 | 8-0 |
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* S VEC TM MM
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*
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* S: Super Mode
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* VEC: Exception Number
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* TM: Trace Mode
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* MM: Memory unaligned addr access
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*/
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#define DEFAULT_PSR_VALUE 0x80000200
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#define SYSTRACE_SAVENUM 5
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#define TRAP0_SIZE 4
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#endif /* __ASM_CSKY_REGDEF_H */
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