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Date: Mon, 15 Sep 2014 12:25:15 -0700 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Paul Burton <paul.burton@...tec.com>, Markos Chandras <markos.chandras@...tec.com>, James Hogan <james.hogan@...tec.com> Subject: [PATCH 3.16 076/158] MIPS: CPS: Initialize EVA before bringing up VPEs from secondary cores 3.16-stable review patch. If anyone has any objections, please let me know. ------------------ From: Markos Chandras <markos.chandras@...tec.com> 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@...tec.com> Signed-off-by: Markos Chandras <markos.chandras@...tec.com> Patchwork: http://patchwork.linux-mips.org/patch/7424/ Signed-off-by: James Hogan <james.hogan@...tec.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- 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. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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