diff options
Diffstat (limited to 'arch/sparc/include/asm/processor_32.h')
| -rw-r--r-- | arch/sparc/include/asm/processor_32.h | 35 |
1 files changed, 5 insertions, 30 deletions
diff --git a/arch/sparc/include/asm/processor_32.h b/arch/sparc/include/asm/processor_32.h index 2c7baa4c4505..ba8b70ffec08 100644 --- a/arch/sparc/include/asm/processor_32.h +++ b/arch/sparc/include/asm/processor_32.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* include/asm/processor.h * * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu) @@ -6,24 +7,12 @@ #ifndef __ASM_SPARC_PROCESSOR_H #define __ASM_SPARC_PROCESSOR_H -/* - * Sparc32 implementation of macro that returns current - * instruction pointer ("program counter"). - */ -#define current_text_addr() ({ void *pc; __asm__("sethi %%hi(1f), %0; or %0, %%lo(1f), %0;\n1:" : "=r" (pc)); pc; }) - #include <asm/psr.h> #include <asm/ptrace.h> #include <asm/head.h> #include <asm/signal.h> #include <asm/page.h> -/* - * The sparc has no problems with write protection - */ -#define wp_works_ok 1 -#define wp_works_ok__is_a_macro /* for versions in ksyms.c */ - /* Whee, this is STACK_TOP + PAGE_SIZE and the lowest kernel address too... * That one page is used to protect kernel from intruders, so that * we can make our access_ok test faster @@ -43,10 +32,6 @@ struct fpq { }; #endif -typedef struct { - int seg; -} mm_segment_t; - /* The Sparc processor specific thread struct. */ struct thread_struct { struct pt_regs *kregs; @@ -61,21 +46,12 @@ struct thread_struct { unsigned long fsr; unsigned long fpqdepth; struct fpq fpqueue[16]; - unsigned long flags; - mm_segment_t current_ds; }; -#define SPARC_FLAG_KTHREAD 0x1 /* task is a kernel thread */ -#define SPARC_FLAG_UNALIGNED 0x2 /* is allowed to do unaligned accesses */ - #define INIT_THREAD { \ - .flags = SPARC_FLAG_KTHREAD, \ - .current_ds = KERNEL_DS, \ + .kregs = (struct pt_regs *)(init_stack+THREAD_SIZE)-1 \ } -/* Return saved PC of a blocked thread. */ -extern unsigned long thread_saved_pc(struct task_struct *t); - /* Do necessary setup to start up a newly executed thread. */ static inline void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long sp) @@ -104,10 +80,7 @@ static inline void start_thread(struct pt_regs * regs, unsigned long pc, : "memory"); } -/* Free all resources held by a thread. */ -#define release_thread(tsk) do { } while(0) - -extern unsigned long get_wchan(struct task_struct *); +unsigned long __get_wchan(struct task_struct *); #define task_pt_regs(tsk) ((tsk)->thread.kregs) #define KSTK_EIP(tsk) ((tsk)->thread.kregs->pc) @@ -116,8 +89,10 @@ extern unsigned long get_wchan(struct task_struct *); #ifdef __KERNEL__ extern struct task_struct *last_task_used_math; +int do_mathemu(struct pt_regs *regs, struct task_struct *fpt); #define cpu_relax() barrier() + extern void (*sparc_idle)(void); #endif |