target-ppc/exec.h

   1 /*
   2  *  PowerPC emulation definitions for qemu.
   3  *
   4  *  Copyright (c) 2003-2007 Jocelyn Mayer
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20 #if !defined (__PPC_H__)
  21 #define __PPC_H__
  22
  23 #include "config.h"
  24
  25 #include "dyngen-exec.h"
  26
  27 #include "cpu.h"
  28 #include "exec-all.h"
  29
  30 /* For normal operations, precise emulation should not be needed */
  31 //#define USE_PRECISE_EMULATION 1
  32 #define USE_PRECISE_EMULATION 0
  33
  34 register struct CPUPPCState *env asm(AREG0);
  35 #if TARGET_LONG_BITS > HOST_LONG_BITS
  36 /* no registers can be used */
  37 #define T0 (env->t0)
  38 #define TDX "%016" PRIx64
  39 #else
  40 register target_ulong T0 asm(AREG1);
  41 #define TDX "%016lx"
  42 #endif
  43
  44 #if defined (DEBUG_OP)
  45 # define RETURN() __asm__ __volatile__("nop" : : : "memory");
  46 #else
  47 # define RETURN() __asm__ __volatile__("" : : : "memory");
  48 #endif
  49
  50 #if !defined(CONFIG_USER_ONLY)
  51 #include "softmmu_exec.h"
  52 #endif /* !defined(CONFIG_USER_ONLY) */
  53
  54 void raise_exception_err (CPUState *env, int exception, int error_code);
  55 void raise_exception (CPUState *env, int exception);
  56
  57 int get_physical_address (CPUState *env, mmu_ctx_t *ctx, target_ulong vaddr,
  58                           int rw, int access_type);
  59
  60 void ppc6xx_tlb_store (CPUState *env, target_ulong EPN, int way, int is_code,
  61                        target_ulong pte0, target_ulong pte1);
  62
  63 static always_inline void env_to_regs (void)
  64 {
  65 }
  66
  67 static always_inline void regs_to_env (void)
  68 {
  69 }
  70
  71 int cpu_ppc_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
  72                               int mmu_idx, int is_softmmu);
  73
  74 static always_inline int cpu_halted (CPUState *env)
  75 {
  76     if (!env->halted)
  77         return 0;
  78     if (msr_ee && (env->interrupt_request & CPU_INTERRUPT_HARD)) {
  79         env->halted = 0;
  80         return 0;
  81     }
  82     return EXCP_HALTED;
  83 }
  84
  85 #endif /* !defined (__PPC_H__) */