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mips: cm: reprime error cause

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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: 3885c2b463 ("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+
This commit is contained in:
Vladimir Kondratiev 2019-02-06 13:46:17 +02:00 committed by Paul Burton
parent 8a96669d77
commit 05dc6001af
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1 changed files with 1 additions and 1 deletions
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arch/mips/kernel/mips-cm.c
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@ -457,5 +457,5 @@ void mips_cm_error_report(void)
} }
/* reprime cause register */ /* reprime cause register */
write_gcr_error_cause(0); write_gcr_error_cause(cm_error);
} }