Changeset 8cee705 in mainline for kernel/arch/sparc64/src/mm/tlb.c

Timestamp:

2006-10-19T22:58:53Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

deb14fb

Parents:

f0450658

Message:

sparc64 work.

• Improve panic screen on data_access_exception by dumping contents of DSFSR and DSFAR.
• Change the FHC enable interrupt code to only set the IMAP_V bit.

File:

• kernel/arch/sparc64/src/mm/tlb.c (modified) (2 diffs)

kernel/arch/sparc64/src/mm/tlb.c

@@ -75 +75 @@
          */
         tlb_invalidate_all();
+
+        /*
+         * Clear both SFSRs.
+         */
+        dtlb_sfsr_write(0);
+        itlb_sfsr_write(0);
 }
 
@@ -354 +360 @@
 }
 
+void dump_sfsr_and_sfar(void)
+{
+        tlb_sfsr_reg_t sfsr;
+        uintptr_t sfar;
+
+        sfsr.value = dtlb_sfsr_read();
+        sfar = dtlb_sfar_read();
+        
+        printf("DTLB SFSR: asi=%#x, ft=%#x, e=%d, ct=%d, pr=%d, w=%d, ow=%d, fv=%d\n",
+                sfsr.asi, sfsr.ft, sfsr.e, sfsr.ct, sfsr.pr, sfsr.w, sfsr.ow, sfsr.fv);
+        printf("DTLB SFAR: address=%p\n", sfar);
+        
+        dtlb_sfsr_write(0);
+}
+
 /** Invalidate all unlocked ITLB and DTLB entries. */
 void tlb_invalidate_all(void)