Replace is_user variable with mmu_idx in softmmu core,

  allowing support of more than 2 mmu access modes.
Add backward compatibility is_user variable in targets code when needed.
Implement per target cpu_mmu_index function, avoiding duplicated code
  and #ifdef TARGET_xxx in softmmu core functions.
Implement per target mmu modes definitions. As an example, add PowerPC
  hypervisor mode definition and Alpha executive and kernel modes definitions.
Optimize PowerPC case, precomputing mmu_idx when MSR register changes
  and using the same definition in code translation code.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3384 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 10 insertions, 30 deletions

diff --git a/exec-all.h b/exec-all.h
index a01494b03d..57086f3def 100644
--- a/exec-all.h
+++ b/exec-all.h
@@ -117,14 +117,14 @@ void tlb_flush_page(CPUState *env, target_ulong addr);
 void tlb_flush(CPUState *env, int flush_global);
 int tlb_set_page_exec(CPUState *env, target_ulong vaddr,
                       target_phys_addr_t paddr, int prot,
-                      int is_user, int is_softmmu);
+                      int mmu_idx, int is_softmmu);
 static inline int tlb_set_page(CPUState *env, target_ulong vaddr,
                                target_phys_addr_t paddr, int prot,
-                               int is_user, int is_softmmu)
+                               int mmu_idx, int is_softmmu)
 {
     if (prot & PAGE_READ)
         prot |= PAGE_EXEC;
-    return tlb_set_page_exec(env, vaddr, paddr, prot, is_user, is_softmmu);
+    return tlb_set_page_exec(env, vaddr, paddr, prot, mmu_idx, is_softmmu);
 }
 
 #define CODE_GEN_MAX_SIZE        65536
@@ -562,10 +562,10 @@ extern int tb_invalidated_flag;
 
 #if !defined(CONFIG_USER_ONLY)
 
-void tlb_fill(target_ulong addr, int is_write, int is_user,
+void tlb_fill(target_ulong addr, int is_write, int mmu_idx,
               void *retaddr);
 
-#define ACCESS_TYPE 3
+#define ACCESS_TYPE (NB_MMU_MODES + 1)
 #define MEMSUFFIX _code
 #define env cpu_single_env
 
@@ -598,35 +598,15 @@ static inline target_ulong get_phys_addr_code(CPUState *env, target_ulong addr)
    is the offset relative to phys_ram_base */
 static inline target_ulong get_phys_addr_code(CPUState *env, target_ulong addr)
 {
-    int is_user, index, pd;
+    int mmu_idx, index, pd;
 
     index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
-#if defined(TARGET_I386)
-    is_user = ((env->hflags & HF_CPL_MASK) == 3);
-#elif defined (TARGET_PPC)
-    is_user = msr_pr;
-#elif defined (TARGET_MIPS)
-    is_user = ((env->hflags & MIPS_HFLAG_MODE) == MIPS_HFLAG_UM);
-#elif defined (TARGET_SPARC)
-    is_user = (env->psrs == 0);
-#elif defined (TARGET_ARM)
-    is_user = ((env->uncached_cpsr & CPSR_M) == ARM_CPU_MODE_USR);
-#elif defined (TARGET_SH4)
-    is_user = ((env->sr & SR_MD) == 0);
-#elif defined (TARGET_ALPHA)
-    is_user = ((env->ps >> 3) & 3);
-#elif defined (TARGET_M68K)
-    is_user = ((env->sr & SR_S) == 0);
-#elif defined (TARGET_CRIS)
-    is_user = (0);
-#else
-#error unimplemented CPU
-#endif
-    if (__builtin_expect(env->tlb_table[is_user][index].addr_code !=
+    mmu_idx = cpu_mmu_index(env);
+    if (__builtin_expect(env->tlb_table[mmu_idx][index].addr_code !=
                          (addr & TARGET_PAGE_MASK), 0)) {
         ldub_code(addr);
     }
-    pd = env->tlb_table[is_user][index].addr_code & ~TARGET_PAGE_MASK;
+    pd = env->tlb_table[mmu_idx][index].addr_code & ~TARGET_PAGE_MASK;
     if (pd > IO_MEM_ROM && !(pd & IO_MEM_ROMD)) {
 #ifdef TARGET_SPARC
         do_unassigned_access(addr, 0, 1, 0);
@@ -634,7 +614,7 @@ static inline target_ulong get_phys_addr_code(CPUState *env, target_ulong addr)
         cpu_abort(env, "Trying to execute code outside RAM or ROM at 0x" TARGET_FMT_lx "\n", addr);
 #endif
     }
-    return addr + env->tlb_table[is_user][index].addend - (unsigned long)phys_ram_base;
+    return addr + env->tlb_table[mmu_idx][index].addend - (unsigned long)phys_ram_base;
 }
 #endif