-/* $Id: processor.h,v 1.83 2001/10/08 09:32:13 davem Exp $
- * include/asm-sparc/processor.h
- *
- * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu)
- */
-
-#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/btfixup.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
- */
-#define TASK_SIZE PAGE_OFFSET
-#ifdef __KERNEL__
-#define STACK_TOP (PAGE_OFFSET - PAGE_SIZE)
-#define STACK_TOP_MAX STACK_TOP
-#endif /* __KERNEL__ */
-
-struct task_struct;
-
-#ifdef __KERNEL__
-struct fpq {
- unsigned long *insn_addr;
- unsigned long insn;
-};
+#ifndef ___ASM_SPARC_PROCESSOR_H
+#define ___ASM_SPARC_PROCESSOR_H
+#if defined(__sparc__) && defined(__arch64__)
+#include <asm-sparc/processor_64.h>
+#else
+#include <asm-sparc/processor_32.h>
#endif
-
-typedef struct {
- int seg;
-} mm_segment_t;
-
-/* The Sparc processor specific thread struct. */
-struct thread_struct {
- struct pt_regs *kregs;
- unsigned int _pad1;
-
- /* Special child fork kpsr/kwim values. */
- unsigned long fork_kpsr __attribute__ ((aligned (8)));
- unsigned long fork_kwim;
-
- /* Floating point regs */
- unsigned long float_regs[32] __attribute__ ((aligned (8)));
- unsigned long fsr;
- unsigned long fpqdepth;
- struct fpq fpqueue[16];
- unsigned long flags;
- mm_segment_t current_ds;
- int new_signal;
-};
-
-#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, \
-}
-
-/* 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)
-{
- register unsigned long zero asm("g1");
-
- regs->psr = (regs->psr & (PSR_CWP)) | PSR_S;
- regs->pc = ((pc & (~3)) - 4);
- regs->npc = regs->pc + 4;
- regs->y = 0;
- zero = 0;
- __asm__ __volatile__("std\t%%g0, [%0 + %3 + 0x00]\n\t"
- "std\t%%g0, [%0 + %3 + 0x08]\n\t"
- "std\t%%g0, [%0 + %3 + 0x10]\n\t"
- "std\t%%g0, [%0 + %3 + 0x18]\n\t"
- "std\t%%g0, [%0 + %3 + 0x20]\n\t"
- "std\t%%g0, [%0 + %3 + 0x28]\n\t"
- "std\t%%g0, [%0 + %3 + 0x30]\n\t"
- "st\t%1, [%0 + %3 + 0x38]\n\t"
- "st\t%%g0, [%0 + %3 + 0x3c]"
- : /* no outputs */
- : "r" (regs),
- "r" (sp - sizeof(struct reg_window)),
- "r" (zero),
- "i" ((const unsigned long)(&((struct pt_regs *)0)->u_regs[0]))
- : "memory");
-}
-
-/* Free all resources held by a thread. */
-#define release_thread(tsk) do { } while(0)
-extern pid_t kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
-
-/* Prepare to copy thread state - unlazy all lazy status */
-#define prepare_to_copy(tsk) do { } while (0)
-
-extern unsigned long get_wchan(struct task_struct *);
-
-#define KSTK_EIP(tsk) ((tsk)->thread.kregs->pc)
-#define KSTK_ESP(tsk) ((tsk)->thread.kregs->u_regs[UREG_FP])
-
-#ifdef __KERNEL__
-
-extern struct task_struct *last_task_used_math;
-
-#define cpu_relax() barrier()
-
#endif
-
-#endif /* __ASM_SPARC_PROCESSOR_H */
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