Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 08/24] mips: cm: reprime error cause | Date | Wed, 13 Feb 2019 19:38:05 +0100 |
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4.9-stable review patch. If anyone has any objections, please let me know.
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From: Vladimir Kondratiev <vladimir.kondratiev@linux.intel.com>
commit 05dc6001af0630e200ad5ea08707187fe5537e6d upstream.
Accordingly to the documentation ---cut--- The GCR_ERROR_CAUSE.ERR_TYPE field and the GCR_ERROR_MULT.ERR_TYPE fields can be cleared by either a reset or by writing the current value of GCR_ERROR_CAUSE.ERR_TYPE to the GCR_ERROR_CAUSE.ERR_TYPE register. ---cut--- Do exactly this. Original value of cm_error may be safely written back; it clears error cause and keeps other bits untouched.
Fixes: 3885c2b463f6 ("MIPS: CM: Add support for reporting CM cache errors") Signed-off-by: Vladimir Kondratiev <vladimir.kondratiev@linux.intel.com> Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: stable@vger.kernel.org # v4.3+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- arch/mips/kernel/mips-cm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/mips/kernel/mips-cm.c +++ b/arch/mips/kernel/mips-cm.c @@ -424,5 +424,5 @@ void mips_cm_error_report(void) } /* reprime cause register */ - write_gcr_error_cause(0); + write_gcr_error_cause(cm_error); }
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