arch/ppc-sam440/kernel/kernel_cpu.h

   1 /*
   2  * Copyright (C) 2012, The AROS Development Team
   3  * All right reserved.
   4  * Author: Jason S. McMullan <jason.mcmullan@gmail.com>
   5  *
   6  * Licensed under the AROS PUBLIC LICENSE (APL) Version 1.1
   7  */
   8
   9 #ifndef KERNEL_CPU_H
  10 #define KERNEL_CPU_H
  11
  12 #include <asm/amcc440.h>
  13 #include "kernel_syscall.h"
  14
  15 #define EXCEPTIONS_COUNT        16
  16
  17 typedef uint32_t cpumode_t;
  18
  19 #define goSuper() 0
  20 #define goUser() do { } while (0)
  21 #define goBack(val) do { } while (0)
  22
  23 #define krnSysCall(n) \
  24     asm volatile("li %%r3,%0; sc"::"i"(n):"memory","r3");
  25
  26 /* Architecture specific syscalls */
  27 #define SC_IRQ_ENABLE   0x201
  28 #define SC_IRQ_DISABLE  0x202
  29
  30 #define krnSysCall(n) \
  31     asm volatile("li %%r3,%0; sc"::"i"(n):"memory","r3");
  32
  33 #define krnSysCall1(n, arg) \
  34     asm volatile("lwz %%r4,%1; li %%r3,%0; sc"::"i"(n),"m"(arg):"memory","r3","r4");
  35
  36 typedef context_t regs_t;
  37
  38 #endif /* KERNEL_CPU_H */