diff mbox series

[v3,11/33] target/ppc/mmu_common.c: Move some debug logging

Message ID 0a55610186f38c9dbbad8cc948af3986d945e796.1715125376.git.balaton@eik.bme.hu (mailing list archive)
State New, archived
Headers show
Series Misc PPC exception and BookE MMU clean ups | expand

Commit Message

BALATON Zoltan May 8, 2024, 12:15 a.m. UTC 
Move the debug logging within ppc6xx_tlb_check() from after its only
call to simplify the caller.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
---
 target/ppc/mmu_common.c | 55 +++++++++++++++++++----------------------
 1 file changed, 26 insertions(+), 29 deletions(-)

Comments

Nicholas Piggin May 8, 2024, 12:47 p.m. UTC | #1 
On Wed May 8, 2024 at 10:15 AM AEST, BALATON Zoltan wrote:
> Move the debug logging within ppc6xx_tlb_check() from after its only
> call to simplify the caller.
>

I *think* the logic looks right.

> Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
> ---
>  target/ppc/mmu_common.c | 55 +++++++++++++++++++----------------------
>  1 file changed, 26 insertions(+), 29 deletions(-)
>
> diff --git a/target/ppc/mmu_common.c b/target/ppc/mmu_common.c
> index 9d337a73ba..b2f2cee1a8 100644
> --- a/target/ppc/mmu_common.c
> +++ b/target/ppc/mmu_common.c
> @@ -225,17 +225,14 @@ static int ppc6xx_tlb_check(CPUPPCState *env, mmu_ctx_t *ctx,
>                        access_type == MMU_INST_FETCH ? 'I' : 'D');
>          switch (ppc6xx_tlb_pte_check(ctx, tlb->pte0, tlb->pte1,
>                                       0, access_type)) {
> -        case -3:
> -            /* TLB inconsistency */
> -            return -1;
>          case -2:
>              /* Access violation */
>              ret = -2;
>              best = nr;
>              break;
> -        case -1:
> +        case -1: /* No match */
> +        case -3: /* TLB inconsistency */
>          default:
> -            /* No match */
>              break;
>          case 0:
>              /* access granted */
> @@ -251,14 +248,37 @@ static int ppc6xx_tlb_check(CPUPPCState *env, mmu_ctx_t *ctx,
>          }
>      }
>      if (best != -1) {
> -    done:
> +done:
>          qemu_log_mask(CPU_LOG_MMU, "found TLB at addr " HWADDR_FMT_plx
>                        " prot=%01x ret=%d\n",
>                        ctx->raddr & TARGET_PAGE_MASK, ctx->prot, ret);
>          /* Update page flags */
>          pte_update_flags(ctx, &env->tlb.tlb6[best].pte1, ret, access_type);
>      }
> +#if defined(DUMP_PAGE_TABLES)
> +        if (qemu_loglevel_mask(CPU_LOG_MMU)) {
> +            CPUState *cs = env_cpu(env);
> +            PowerPCCPU *cpu = env_archcpu(env);

Do you need to de-indent this one level?

Otherwise, 

Reviewed-by: Nicholas Piggin <npiggin@gmail.com>

Thanks,
Nick

> +            hwaddr curaddr;
> +            uint32_t a0, a1, a2, a3;
>  
> +            qemu_log("Page table: " HWADDR_FMT_plx " len " HWADDR_FMT_plx "\n",
> +                     ppc_hash32_hpt_base(cpu), ppc_hash32_hpt_mask(cpu) + 0x80);
> +            for (curaddr = ppc_hash32_hpt_base(cpu);
> +                 curaddr < (ppc_hash32_hpt_base(cpu)
> +                            + ppc_hash32_hpt_mask(cpu) + 0x80);
> +                 curaddr += 16) {
> +                a0 = ldl_phys(cs->as, curaddr);
> +                a1 = ldl_phys(cs->as, curaddr + 4);
> +                a2 = ldl_phys(cs->as, curaddr + 8);
> +                a3 = ldl_phys(cs->as, curaddr + 12);
> +                if (a0 != 0 || a1 != 0 || a2 != 0 || a3 != 0) {
> +                    qemu_log(HWADDR_FMT_plx ": %08x %08x %08x %08x\n",
> +                             curaddr, a0, a1, a2, a3);
> +                }
> +            }
> +        }
> +#endif
>      return ret;
>  }
>  
> @@ -420,29 +440,6 @@ static int mmu6xx_get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx,
>          ctx->raddr = (hwaddr)-1ULL;
>          /* Software TLB search */
>          ret = ppc6xx_tlb_check(env, ctx, eaddr, access_type);
> -#if defined(DUMP_PAGE_TABLES)
> -        if (qemu_loglevel_mask(CPU_LOG_MMU)) {
> -            CPUState *cs = env_cpu(env);
> -            hwaddr curaddr;
> -            uint32_t a0, a1, a2, a3;
> -
> -            qemu_log("Page table: " HWADDR_FMT_plx " len " HWADDR_FMT_plx "\n",
> -                     ppc_hash32_hpt_base(cpu), ppc_hash32_hpt_mask(cpu) + 0x80);
> -            for (curaddr = ppc_hash32_hpt_base(cpu);
> -                 curaddr < (ppc_hash32_hpt_base(cpu)
> -                            + ppc_hash32_hpt_mask(cpu) + 0x80);
> -                 curaddr += 16) {
> -                a0 = ldl_phys(cs->as, curaddr);
> -                a1 = ldl_phys(cs->as, curaddr + 4);
> -                a2 = ldl_phys(cs->as, curaddr + 8);
> -                a3 = ldl_phys(cs->as, curaddr + 12);
> -                if (a0 != 0 || a1 != 0 || a2 != 0 || a3 != 0) {
> -                    qemu_log(HWADDR_FMT_plx ": %08x %08x %08x %08x\n",
> -                             curaddr, a0, a1, a2, a3);
> -                }
> -            }
> -        }
> -#endif
>      } else {
>          qemu_log_mask(CPU_LOG_MMU, "direct store...\n");
>          /* Direct-store segment : absolutely *BUGGY* for now */
diff mbox series

Patch

diff --git a/target/ppc/mmu_common.c b/target/ppc/mmu_common.c
index 9d337a73ba..b2f2cee1a8 100644
--- a/target/ppc/mmu_common.c
+++ b/target/ppc/mmu_common.c
@@ -225,17 +225,14 @@  static int ppc6xx_tlb_check(CPUPPCState *env, mmu_ctx_t *ctx,
                       access_type == MMU_INST_FETCH ? 'I' : 'D');
         switch (ppc6xx_tlb_pte_check(ctx, tlb->pte0, tlb->pte1,
                                      0, access_type)) {
-        case -3:
-            /* TLB inconsistency */
-            return -1;
         case -2:
             /* Access violation */
             ret = -2;
             best = nr;
             break;
-        case -1:
+        case -1: /* No match */
+        case -3: /* TLB inconsistency */
         default:
-            /* No match */
             break;
         case 0:
             /* access granted */
@@ -251,14 +248,37 @@  static int ppc6xx_tlb_check(CPUPPCState *env, mmu_ctx_t *ctx,
         }
     }
     if (best != -1) {
-    done:
+done:
         qemu_log_mask(CPU_LOG_MMU, "found TLB at addr " HWADDR_FMT_plx
                       " prot=%01x ret=%d\n",
                       ctx->raddr & TARGET_PAGE_MASK, ctx->prot, ret);
         /* Update page flags */
         pte_update_flags(ctx, &env->tlb.tlb6[best].pte1, ret, access_type);
     }
+#if defined(DUMP_PAGE_TABLES)
+        if (qemu_loglevel_mask(CPU_LOG_MMU)) {
+            CPUState *cs = env_cpu(env);
+            PowerPCCPU *cpu = env_archcpu(env);
+            hwaddr curaddr;
+            uint32_t a0, a1, a2, a3;
 
+            qemu_log("Page table: " HWADDR_FMT_plx " len " HWADDR_FMT_plx "\n",
+                     ppc_hash32_hpt_base(cpu), ppc_hash32_hpt_mask(cpu) + 0x80);
+            for (curaddr = ppc_hash32_hpt_base(cpu);
+                 curaddr < (ppc_hash32_hpt_base(cpu)
+                            + ppc_hash32_hpt_mask(cpu) + 0x80);
+                 curaddr += 16) {
+                a0 = ldl_phys(cs->as, curaddr);
+                a1 = ldl_phys(cs->as, curaddr + 4);
+                a2 = ldl_phys(cs->as, curaddr + 8);
+                a3 = ldl_phys(cs->as, curaddr + 12);
+                if (a0 != 0 || a1 != 0 || a2 != 0 || a3 != 0) {
+                    qemu_log(HWADDR_FMT_plx ": %08x %08x %08x %08x\n",
+                             curaddr, a0, a1, a2, a3);
+                }
+            }
+        }
+#endif
     return ret;
 }
 
@@ -420,29 +440,6 @@  static int mmu6xx_get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx,
         ctx->raddr = (hwaddr)-1ULL;
         /* Software TLB search */
         ret = ppc6xx_tlb_check(env, ctx, eaddr, access_type);
-#if defined(DUMP_PAGE_TABLES)
-        if (qemu_loglevel_mask(CPU_LOG_MMU)) {
-            CPUState *cs = env_cpu(env);
-            hwaddr curaddr;
-            uint32_t a0, a1, a2, a3;
-
-            qemu_log("Page table: " HWADDR_FMT_plx " len " HWADDR_FMT_plx "\n",
-                     ppc_hash32_hpt_base(cpu), ppc_hash32_hpt_mask(cpu) + 0x80);
-            for (curaddr = ppc_hash32_hpt_base(cpu);
-                 curaddr < (ppc_hash32_hpt_base(cpu)
-                            + ppc_hash32_hpt_mask(cpu) + 0x80);
-                 curaddr += 16) {
-                a0 = ldl_phys(cs->as, curaddr);
-                a1 = ldl_phys(cs->as, curaddr + 4);
-                a2 = ldl_phys(cs->as, curaddr + 8);
-                a3 = ldl_phys(cs->as, curaddr + 12);
-                if (a0 != 0 || a1 != 0 || a2 != 0 || a3 != 0) {
-                    qemu_log(HWADDR_FMT_plx ": %08x %08x %08x %08x\n",
-                             curaddr, a0, a1, a2, a3);
-                }
-            }
-        }
-#endif
     } else {
         qemu_log_mask(CPU_LOG_MMU, "direct store...\n");
         /* Direct-store segment : absolutely *BUGGY* for now */