2be9880dc8
Only x86 has own release_thread(), introduce a new weak release_thread() function to clean empty definitions in other ARCHs. Link: https://lkml.kernel.org/r/20220819014406.32266-1-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Acked-by: Guo Ren <guoren@kernel.org> [csky] Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Brian Cain <bcain@quicinc.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc] Acked-by: Stafford Horne <shorne@gmail.com> [openrisc] Acked-by: Catalin Marinas <catalin.marinas@arm.com> [arm64] Acked-by: Huacai Chen <chenhuacai@kernel.org> [LoongArch] Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Chris Zankel <chris@zankel.net> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Dinh Nguyen <dinguyen@kernel.org> Cc: Guo Ren <guoren@kernel.org> [csky] Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Jonas Bonn <jonas@southpole.se> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Richard Henderson <richard.henderson@linaro.org> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Vineet Gupta <vgupta@kernel.org> Cc: Will Deacon <will@kernel.org> Cc: Xuerui Wang <kernel@xen0n.name> Cc: Yoshinori Sato <ysato@users.osdn.me> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
/*
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* Copyright (C) 2013 Altera Corporation
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* Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch>
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* Copyright (C) 2004 Microtronix Datacom Ltd
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* Copyright (C) 2001 Ken Hill (khill@microtronix.com)
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* Vic Phillips (vic@microtronix.com)
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*
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* based on SPARC asm/processor_32.h which is:
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*
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* Copyright (C) 1994 David S. Miller
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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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#ifndef _ASM_NIOS2_PROCESSOR_H
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#define _ASM_NIOS2_PROCESSOR_H
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#include <asm/ptrace.h>
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#include <asm/registers.h>
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#include <asm/page.h>
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#define NIOS2_FLAG_KTHREAD 0x00000001 /* task is a kernel thread */
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#define NIOS2_OP_NOP 0x1883a
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#define NIOS2_OP_BREAK 0x3da03a
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#ifdef __KERNEL__
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#define STACK_TOP TASK_SIZE
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#define STACK_TOP_MAX STACK_TOP
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#endif /* __KERNEL__ */
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/* Kuser helpers is mapped to this user space address */
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#define KUSER_BASE 0x1000
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#define KUSER_SIZE (PAGE_SIZE)
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#ifndef __ASSEMBLY__
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# define TASK_SIZE 0x7FFF0000UL
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# define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3))
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/* The Nios processor specific thread struct. */
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struct thread_struct {
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struct pt_regs *kregs;
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/* Context switch saved kernel state. */
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unsigned long ksp;
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unsigned long kpsr;
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};
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#define INIT_MMAP \
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{ &init_mm, (0), (0), __pgprot(0x0), VM_READ | VM_WRITE | VM_EXEC }
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# define INIT_THREAD { \
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.kregs = NULL, \
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.ksp = 0, \
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.kpsr = 0, \
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}
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extern void start_thread(struct pt_regs *regs, unsigned long pc,
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unsigned long sp);
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struct task_struct;
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extern unsigned long __get_wchan(struct task_struct *p);
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#define task_pt_regs(p) \
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((struct pt_regs *)(THREAD_SIZE + task_stack_page(p)) - 1)
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/* Used by procfs */
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#define KSTK_EIP(tsk) ((tsk)->thread.kregs->ea)
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#define KSTK_ESP(tsk) ((tsk)->thread.kregs->sp)
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#define cpu_relax() barrier()
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#endif /* __ASSEMBLY__ */
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#endif /* _ASM_NIOS2_PROCESSOR_H */
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