/[qemu]/qemu/target-sparc/helper.c
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revision 1.16 by bellard, Sat Jul 2 14:31:34 2005 UTC revision 1.17 by bellard, Mon Jul 4 22:18:23 2005 UTC
# Line 17  Line 17 
17   * License along with this library; if not, write to the Free Software   * 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   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19   */   */
20  #include "exec.h"  #include <stdarg.h>
21    #include <stdlib.h>
22    #include <stdio.h>
23    #include <string.h>
24    #include <inttypes.h>
25    #include <signal.h>
26    #include <assert.h>
27    
28    #include "cpu.h"
29    #include "exec-all.h"
30    
31  //#define DEBUG_PCALL  //#define DEBUG_PCALL
32  //#define DEBUG_MMU  //#define DEBUG_MMU
# Line 52  int cpu_sparc_handle_mmu_fault(CPUState Line 61  int cpu_sparc_handle_mmu_fault(CPUState
61    
62  #else  #else
63    
 #define MMUSUFFIX _mmu  
 #define GETPC() (__builtin_return_address(0))  
   
 #define SHIFT 0  
 #include "softmmu_template.h"  
   
 #define SHIFT 1  
 #include "softmmu_template.h"  
   
 #define SHIFT 2  
 #include "softmmu_template.h"  
   
 #define SHIFT 3  
 #include "softmmu_template.h"  
   
   
 /* try to fill the TLB and return an exception if error. If retaddr is  
    NULL, it means that the function was called in C code (i.e. not  
    from generated code or from helper.c) */  
 /* XXX: fix it to restore all registers */  
 void tlb_fill(target_ulong addr, int is_write, int is_user, void *retaddr)  
 {  
     TranslationBlock *tb;  
     int ret;  
     unsigned long pc;  
     CPUState *saved_env;  
   
     /* XXX: hack to restore env in all cases, even if not called from  
        generated code */  
     saved_env = env;  
     env = cpu_single_env;  
   
     ret = cpu_sparc_handle_mmu_fault(env, addr, is_write, is_user, 1);  
     if (ret) {  
         if (retaddr) {  
             /* now we have a real cpu fault */  
             pc = (unsigned long)retaddr;  
             tb = tb_find_pc(pc);  
             if (tb) {  
                 /* the PC is inside the translated code. It means that we have  
                    a virtual CPU fault */  
                 cpu_restore_state(tb, env, pc, (void *)T2);  
             }  
         }  
         cpu_loop_exit();  
     }  
     env = saved_env;  
 }  
   
64  #ifndef TARGET_SPARC64  #ifndef TARGET_SPARC64
65  static const int access_table[8][8] = {  static const int access_table[8][8] = {
66      { 0, 0, 0, 0, 2, 0, 3, 3 },      { 0, 0, 0, 0, 2, 0, 3, 3 },
# Line 412  void memcpy32(target_ulong *dst, const t Line 372  void memcpy32(target_ulong *dst, const t
372      dst[7] = src[7];      dst[7] = src[7];
373  }  }
374    
375  void set_cwp(int new_cwp)  #if !defined(TARGET_SPARC64)
376  {  target_ulong mmu_probe(CPUState *env, target_ulong address, int mmulev)
     /* put the modified wrap registers at their proper location */  
     if (env->cwp == (NWINDOWS - 1))  
         memcpy32(env->regbase, env->regbase + NWINDOWS * 16);  
     env->cwp = new_cwp;  
     /* put the wrap registers at their temporary location */  
     if (new_cwp == (NWINDOWS - 1))  
         memcpy32(env->regbase + NWINDOWS * 16, env->regbase);  
     env->regwptr = env->regbase + (new_cwp * 16);  
     REGWPTR = env->regwptr;  
 }  
   
 void cpu_set_cwp(CPUState *env1, int new_cwp)  
 {  
     CPUState *saved_env;  
 #ifdef reg_REGWPTR  
     target_ulong *saved_regwptr;  
 #endif  
   
     saved_env = env;  
 #ifdef reg_REGWPTR  
     saved_regwptr = REGWPTR;  
 #endif  
     env = env1;  
     set_cwp(new_cwp);  
     env = saved_env;  
 #ifdef reg_REGWPTR  
     REGWPTR = saved_regwptr;  
 #endif  
 }  
   
 #ifdef TARGET_SPARC64  
 void do_interrupt(int intno)  
 {  
 #ifdef DEBUG_PCALL  
     if (loglevel & CPU_LOG_INT) {  
         static int count;  
         fprintf(logfile, "%6d: v=%02x pc=%08x npc=%08x SP=%08x\n",  
                 count, intno,  
                 env->pc,  
                 env->npc, env->regwptr[6]);  
         cpu_dump_state(env, logfile, fprintf, 0);  
 #if 0  
         {  
             int i;  
             uint8_t *ptr;  
   
             fprintf(logfile, "       code=");  
             ptr = (uint8_t *)env->pc;  
             for(i = 0; i < 16; i++) {  
                 fprintf(logfile, " %02x", ldub(ptr + i));  
             }  
             fprintf(logfile, "\n");  
         }  
 #endif  
         count++;  
     }  
 #endif  
 #if !defined(CONFIG_USER_ONLY)  
     if (env->pstate & PS_IE) {  
         cpu_abort(cpu_single_env, "Trap 0x%02x while interrupts disabled, Error state", env->exception_index);  
         return;  
     }  
 #endif  
     env->tstate[env->tl] = ((uint64_t)GET_CCR(env) << 32) | ((env->asi & 0xff) << 24) |  
         ((env->pstate & 0xfff) << 8) | (env->cwp & 0xff);  
     env->tpc[env->tl] = env->pc;  
     env->tnpc[env->tl] = env->npc;  
     env->tt[env->tl] = intno;  
     env->tbr = env->tbr | (env->tl > 1) ? 1 << 14 : 0 | (intno << 4);  
     env->tl++;  
     env->pc = env->tbr;  
     env->npc = env->pc + 4;  
     env->exception_index = 0;  
 }  
 #else  
 void do_interrupt(int intno)  
 {  
     int cwp;  
   
 #ifdef DEBUG_PCALL  
     if (loglevel & CPU_LOG_INT) {  
         static int count;  
         fprintf(logfile, "%6d: v=%02x pc=%08x npc=%08x SP=%08x\n",  
                 count, intno,  
                 env->pc,  
                 env->npc, env->regwptr[6]);  
         cpu_dump_state(env, logfile, fprintf, 0);  
 #if 0  
         {  
             int i;  
             uint8_t *ptr;  
   
             fprintf(logfile, "       code=");  
             ptr = (uint8_t *)env->pc;  
             for(i = 0; i < 16; i++) {  
                 fprintf(logfile, " %02x", ldub(ptr + i));  
             }  
             fprintf(logfile, "\n");  
         }  
 #endif  
         count++;  
     }  
 #endif  
 #if !defined(CONFIG_USER_ONLY)  
     if (env->psret == 0) {  
         cpu_abort(cpu_single_env, "Trap 0x%02x while interrupts disabled, Error state", env->exception_index);  
         return;  
     }  
 #endif  
     env->psret = 0;  
     cwp = (env->cwp - 1) & (NWINDOWS - 1);  
     set_cwp(cwp);  
     env->regwptr[9] = env->pc;  
     env->regwptr[10] = env->npc;  
     env->psrps = env->psrs;  
     env->psrs = 1;  
     env->tbr = (env->tbr & TBR_BASE_MASK) | (intno << 4);  
     env->pc = env->tbr;  
     env->npc = env->pc + 4;  
     env->exception_index = 0;  
 }  
   
 target_ulong mmu_probe(target_ulong address, int mmulev)  
377  {  {
378      target_phys_addr_t pde_ptr;      target_phys_addr_t pde_ptr;
379      uint32_t pde;      uint32_t pde;
# Line 599  target_ulong mmu_probe(target_ulong addr Line 436  target_ulong mmu_probe(target_ulong addr
436  }  }
437    
438  #ifdef DEBUG_MMU  #ifdef DEBUG_MMU
439  void dump_mmu(void)  void dump_mmu(CPUState *env)
440  {  {
441       target_ulong va, va1, va2;       target_ulong va, va1, va2;
442       unsigned int n, m, o;       unsigned int n, m, o;
# Line 611  void dump_mmu(void) Line 448  void dump_mmu(void)
448      pde = ldl_phys(pde_ptr);      pde = ldl_phys(pde_ptr);
449      printf("Root ptr: " TARGET_FMT_lx ", ctx: %d\n", env->mmuregs[1] << 4, env->mmuregs[2]);      printf("Root ptr: " TARGET_FMT_lx ", ctx: %d\n", env->mmuregs[1] << 4, env->mmuregs[2]);
450      for (n = 0, va = 0; n < 256; n++, va += 16 * 1024 * 1024) {      for (n = 0, va = 0; n < 256; n++, va += 16 * 1024 * 1024) {
451          pde_ptr = mmu_probe(va, 2);          pde_ptr = mmu_probe(env, va, 2);
452          if (pde_ptr) {          if (pde_ptr) {
453              pa = cpu_get_phys_page_debug(env, va);              pa = cpu_get_phys_page_debug(env, va);
454              printf("VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_lx " PDE: " TARGET_FMT_lx "\n", va, pa, pde_ptr);              printf("VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_lx " PDE: " TARGET_FMT_lx "\n", va, pa, pde_ptr);
455              for (m = 0, va1 = va; m < 64; m++, va1 += 256 * 1024) {              for (m = 0, va1 = va; m < 64; m++, va1 += 256 * 1024) {
456                  pde_ptr = mmu_probe(va1, 1);                  pde_ptr = mmu_probe(env, va1, 1);
457                  if (pde_ptr) {                  if (pde_ptr) {
458                      pa = cpu_get_phys_page_debug(env, va1);                      pa = cpu_get_phys_page_debug(env, va1);
459                      printf(" VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_lx " PDE: " TARGET_FMT_lx "\n", va1, pa, pde_ptr);                      printf(" VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_lx " PDE: " TARGET_FMT_lx "\n", va1, pa, pde_ptr);
460                      for (o = 0, va2 = va1; o < 64; o++, va2 += 4 * 1024) {                      for (o = 0, va2 = va1; o < 64; o++, va2 += 4 * 1024) {
461                          pde_ptr = mmu_probe(va2, 0);                          pde_ptr = mmu_probe(env, va2, 0);
462                          if (pde_ptr) {                          if (pde_ptr) {
463                              pa = cpu_get_phys_page_debug(env, va2);                              pa = cpu_get_phys_page_debug(env, va2);
464                              printf("  VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_lx " PTE: " TARGET_FMT_lx "\n", va2, pa, pde_ptr);                              printf("  VA: " TARGET_FMT_lx ", PA: " TARGET_FMT_lx " PTE: " TARGET_FMT_lx "\n", va2, pa, pde_ptr);

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