Avoid tlbw* hazards for the R4600/R4700/R5000.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Avoid tlbw* hazards for the R4600/R4700/R5000.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2c93e12c · Maciej W. Rozycki · Ralf Baechle · c3455b0e · 2c93e12c
Commit 2c93e12c authored Jun 30, 2005 by Maciej W. Rozycki Committed by Ralf Baechle Oct 29, 2005
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arch/mips/mm/tlbex.c arch/mips/mm/tlbex.c +6 -1

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--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -827,11 +827,16 @@ static __init void build_tlb_write_entry(u32 **p, struct label **l,
 		i_nop(p);
 		break;

-	case CPU_R4300:
 	case CPU_R4600:
 	case CPU_R4700:
 	case CPU_R5000:
 	case CPU_R5000A:
+		i_nop(p);
+		tlbw(p);
+		i_nop(p);
+		break;
+
+	case CPU_R4300:
 	case CPU_5KC:
 	case CPU_TX49XX:
 	case CPU_AU1000: