Module Name: src
Committed By: maya
Date: Sun Aug 20 09:21:54 UTC 2017
Modified Files:
src/sys/arch/mips/mips: mipsX_subr.S
Log Message:
Don't need the errata workaround on user return
It's reported that the MMU will block such invalid reads in userland,
and it's only needed on entry.
To generate a diff of this commit:
cvs rdiff -u -r1.102 -r1.103 src/sys/arch/mips/mips/mipsX_subr.S
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/mips/mips/mipsX_subr.S
diff -u src/sys/arch/mips/mips/mipsX_subr.S:1.102 src/sys/arch/mips/mips/mipsX_subr.S:1.103
--- src/sys/arch/mips/mips/mipsX_subr.S:1.102 Tue Aug 8 09:34:59 2017
+++ src/sys/arch/mips/mips/mipsX_subr.S Sun Aug 20 09:21:54 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: mipsX_subr.S,v 1.102 2017/08/08 09:34:59 maya Exp $ */
+/* $NetBSD: mipsX_subr.S,v 1.103 2017/08/20 09:21:54 maya Exp $ */
/*
* Copyright 2002 Wasabi Systems, Inc.
@@ -2655,10 +2655,6 @@ MIPSX(user_return):
REG_L s6, CALLFRAME_SIZ+TF_REG_S6(sp) # $22
REG_L s7, CALLFRAME_SIZ+TF_REG_S7(sp) # $23
REG_L s8, CALLFRAME_SIZ+TF_REG_S8(sp) # $30
-#ifdef MIPS3_LOONGSON2
- li t0, (MIPS_DIAG_ITLB_CLEAR | MIPS_DIAG_BTB_CLEAR | MIPS_DIAG_RAS_DISABLE)
- mtc0 t0, MIPS_COP_0_DIAG
-#endif
MIPSX(user_intr_return):
#ifdef PARANOIA
PTR_L t0, L_CPU(MIPS_CURLWP)
