This is a note to let you know that I've just added the patch titled
MIPS: CPS: Initialize EVA before bringing up VPEs from secondary cores
to the 3.16-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mips-cps-initialize-eva-before-bringing-up-vpes-from-secondary-cores.patch
and it can be found in the queue-3.16 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 6521d9a436a62e83ce57d6be6e5484e1098c1380 Mon Sep 17 00:00:00 2001
From: Markos Chandras <markos.chandras@xxxxxxxxxx>
Date: Mon, 21 Jul 2014 14:35:56 +0100
Subject: MIPS: CPS: Initialize EVA before bringing up VPEs from secondary cores
From: Markos Chandras <markos.chandras@xxxxxxxxxx>
commit 6521d9a436a62e83ce57d6be6e5484e1098c1380 upstream.
The CPS code is doing several memory loads when configuring the VPEs
from secondary cores, so the segmentation control registers must be
initialized in time otherwise the kernel will crash with strange
TLB exceptions.
Reviewed-by: Paul Burton <paul.burton@xxxxxxxxxx>
Signed-off-by: Markos Chandras <markos.chandras@xxxxxxxxxx>
Patchwork: http://patchwork.linux-mips.org/patch/7424/
Signed-off-by: James Hogan <james.hogan@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/mips/kernel/cps-vec.S | 4 ++++
1 file changed, 4 insertions(+)
--- a/arch/mips/kernel/cps-vec.S
+++ b/arch/mips/kernel/cps-vec.S
@@ -13,6 +13,7 @@
#include <asm/asm-offsets.h>
#include <asm/asmmacro.h>
#include <asm/cacheops.h>
+#include <asm/eva.h>
#include <asm/mipsregs.h>
#include <asm/mipsmtregs.h>
#include <asm/pm.h>
@@ -166,6 +167,9 @@ dcache_done:
1: jal mips_cps_core_init
nop
+ /* Do any EVA initialization if necessary */
+ eva_init
+
/*
* Boot any other VPEs within this core that should be online, and
* deactivate this VPE if it should be offline.
Patches currently in stable-queue which might be from markos.chandras@xxxxxxxxxx are
queue-3.16/mips-smp-mt-fix-link-error-when-proc_fs-n.patch
queue-3.16/mips-malta-improve-system-memory-detection-for-e-memsize-2g.patch
queue-3.16/mips-malta-eva-rename-eva_entry-to-platform_eva_init.patch
queue-3.16/mips-syscall-fix-audit-value-for-o32-processes-on-mips64.patch
queue-3.16/mips-eva-add-new-eva-header.patch
queue-3.16/mips-cps-initialize-eva-before-bringing-up-vpes-from-secondary-cores.patch
queue-3.16/mips-scall64-o32-fix-indirect-syscall-detection.patch
queue-3.16/mips-octeon-make-get_system_type-thread-safe.patch
queue-3.16/mips-gic-prevent-array-overrun.patch
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