[PATCH 2.6] tlbwr hazard for NEC VR4100

[Yoichi Yuasa <yuasa@xxxxxxxxxxxxxx>]

Hi Ralf,

This patch had added tlbwr hazard for NEC VR4100.
Please apply this patch to 2.6.

Yoichi

Signed-off-by: Yoichi Yuasa <yuasa@xxxxxxxxxxxxxx>

diff -urN -X dontdiff a-orig/arch/mips/mm/tlbex.c a/arch/mips/mm/tlbex.c
--- a-orig/arch/mips/mm/tlbex.c	Tue Nov 30 20:42:08 2004
+++ a/arch/mips/mm/tlbex.c	Wed Dec  1 23:23:11 2004
@@ -820,6 +820,25 @@
 		i_ssnop(p);
 		break;
 
+	case CPU_VR4111:
+	case CPU_VR4121:
+	case CPU_VR4122:
+	case CPU_VR4181:
+	case CPU_VR4181A:
+		i_nop(p);
+		i_nop(p);
+		i_tlbwr(p);
+		i_nop(p);
+		i_nop(p);
+		break;
+
+	case CPU_VR4131:
+	case CPU_VR4133:
+		i_nop(p);
+		i_nop(p);
+		i_tlbwr(p);
+		break;
+
 	default:
 		panic("No TLB refill handler yet (CPU type: %d)",
 		      current_cpu_data.cputype);