mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-11-07 01:49:42 +01:00
Kefeng Wang
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/[email protected] Signed-off-by: Kefeng Wang <[email protected]> Acked-by: Guo Ren <[email protected]> [csky] Acked-by: Russell King (Oracle) <[email protected]> Acked-by: Geert Uytterhoeven <[email protected]> Acked-by: Brian Cain <[email protected]> Acked-by: Michael Ellerman <[email protected]> [powerpc] Acked-by: Stafford Horne <[email protected]> [openrisc] Acked-by: Catalin Marinas <[email protected]> [arm64] Acked-by: Huacai Chen <[email protected]> [LoongArch] Cc: Alexander Gordeev <[email protected]> Cc: Anton Ivanov <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Christian Borntraeger <[email protected]> Cc: Christophe Leroy <[email protected]> Cc: Chris Zankel <[email protected]> Cc: Dave Hansen <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Dinh Nguyen <[email protected]> Cc: Guo Ren <[email protected]> [csky] Cc: Heiko Carstens <[email protected]> Cc: Helge Deller <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Ivan Kokshaysky <[email protected]> Cc: James Bottomley <[email protected]> Cc: Johannes Berg <[email protected]> Cc: Jonas Bonn <[email protected]> Cc: Matt Turner <[email protected]> Cc: Max Filippov <[email protected]> Cc: Michal Simek <[email protected]> Cc: Nicholas Piggin <[email protected]> Cc: Palmer Dabbelt <[email protected]> Cc: Paul Walmsley <[email protected]> Cc: Richard Henderson <[email protected]> Cc: Richard Weinberger <[email protected]> Cc: Rich Felker <[email protected]> Cc: Stefan Kristiansson <[email protected]> Cc: Sven Schnelle <[email protected]> Cc: Thomas Bogendoerfer <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Vasily Gorbik <[email protected]> Cc: Vineet Gupta <[email protected]> Cc: Will Deacon <[email protected]> Cc: Xuerui Wang <[email protected]> Cc: Yoshinori Sato <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
101 lines
2.6 KiB
C
101 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* include/asm/processor.h
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*
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* Copyright (C) 1994 David S. Miller ([email protected])
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*/
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#ifndef __ASM_SPARC_PROCESSOR_H
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#define __ASM_SPARC_PROCESSOR_H
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#include <asm/psr.h>
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#include <asm/ptrace.h>
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#include <asm/head.h>
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#include <asm/signal.h>
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#include <asm/page.h>
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/* Whee, this is STACK_TOP + PAGE_SIZE and the lowest kernel address too...
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* That one page is used to protect kernel from intruders, so that
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* we can make our access_ok test faster
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*/
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#define TASK_SIZE PAGE_OFFSET
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#ifdef __KERNEL__
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#define STACK_TOP (PAGE_OFFSET - PAGE_SIZE)
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#define STACK_TOP_MAX STACK_TOP
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#endif /* __KERNEL__ */
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struct task_struct;
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#ifdef __KERNEL__
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struct fpq {
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unsigned long *insn_addr;
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unsigned long insn;
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};
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#endif
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/* The Sparc processor specific thread struct. */
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struct thread_struct {
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struct pt_regs *kregs;
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unsigned int _pad1;
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/* Special child fork kpsr/kwim values. */
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unsigned long fork_kpsr __attribute__ ((aligned (8)));
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unsigned long fork_kwim;
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/* Floating point regs */
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unsigned long float_regs[32] __attribute__ ((aligned (8)));
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unsigned long fsr;
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unsigned long fpqdepth;
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struct fpq fpqueue[16];
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};
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#define INIT_THREAD { \
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.kregs = (struct pt_regs *)(init_stack+THREAD_SIZE)-1 \
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}
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/* Do necessary setup to start up a newly executed thread. */
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static inline void start_thread(struct pt_regs * regs, unsigned long pc,
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unsigned long sp)
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{
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register unsigned long zero asm("g1");
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regs->psr = (regs->psr & (PSR_CWP)) | PSR_S;
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regs->pc = ((pc & (~3)) - 4);
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regs->npc = regs->pc + 4;
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regs->y = 0;
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zero = 0;
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__asm__ __volatile__("std\t%%g0, [%0 + %3 + 0x00]\n\t"
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"std\t%%g0, [%0 + %3 + 0x08]\n\t"
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"std\t%%g0, [%0 + %3 + 0x10]\n\t"
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"std\t%%g0, [%0 + %3 + 0x18]\n\t"
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"std\t%%g0, [%0 + %3 + 0x20]\n\t"
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"std\t%%g0, [%0 + %3 + 0x28]\n\t"
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"std\t%%g0, [%0 + %3 + 0x30]\n\t"
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"st\t%1, [%0 + %3 + 0x38]\n\t"
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"st\t%%g0, [%0 + %3 + 0x3c]"
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: /* no outputs */
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: "r" (regs),
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"r" (sp - sizeof(struct reg_window32)),
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"r" (zero),
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"i" ((const unsigned long)(&((struct pt_regs *)0)->u_regs[0]))
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: "memory");
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}
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unsigned long __get_wchan(struct task_struct *);
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#define task_pt_regs(tsk) ((tsk)->thread.kregs)
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#define KSTK_EIP(tsk) ((tsk)->thread.kregs->pc)
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#define KSTK_ESP(tsk) ((tsk)->thread.kregs->u_regs[UREG_FP])
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#ifdef __KERNEL__
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extern struct task_struct *last_task_used_math;
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int do_mathemu(struct pt_regs *regs, struct task_struct *fpt);
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#define cpu_relax() barrier()
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extern void (*sparc_idle)(void);
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#endif
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#endif /* __ASM_SPARC_PROCESSOR_H */
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