From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org,
Vladimir Kondratiev <vladimir.kondratiev@linux.intel.com>,
Paul Burton <paul.burton@mips.com>,
Ralf Baechle <ralf@linux-mips.org>,
James Hogan <jhogan@kernel.org>,
linux-mips@vger.kernel.org
Subject: [PATCH 4.20 23/50] mips: cm: reprime error cause
Date: Wed, 13 Feb 2019 19:38:28 +0100 [thread overview]
Message-ID: <20190213183657.605430699@linuxfoundation.org> (raw)
In-Reply-To: <20190213183655.747168774@linuxfoundation.org>
4.20-stable review patch. If anyone has any objections, please let me know.
------------------
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
@@ -457,5 +457,5 @@ void mips_cm_error_report(void)
}
/* reprime cause register */
- write_gcr_error_cause(0);
+ write_gcr_error_cause(cm_error);
}
next parent reply other threads:[~2019-02-13 18:49 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190213183655.747168774@linuxfoundation.org>
2019-02-13 18:38 ` Greg Kroah-Hartman [this message]
2019-02-13 18:38 ` [PATCH 4.20 24/50] MIPS: Use lower case for addresses in nexys4ddr.dts Greg Kroah-Hartman
2019-02-13 18:38 ` [PATCH 4.20 25/50] MIPS: OCTEON: dont set octeon_dma_bar_type if PCI is disabled Greg Kroah-Hartman
2019-02-13 18:38 ` [PATCH 4.20 26/50] MIPS: VDSO: Use same -m%-float cflag as the kernel proper Greg Kroah-Hartman
2019-02-13 18:38 ` [PATCH 4.20 27/50] mips: loongson64: remove unreachable(), fix loongson_poweroff() Greg Kroah-Hartman
2019-02-13 18:38 ` [PATCH 4.20 28/50] MIPS: VDSO: Include $(ccflags-vdso) in o32,n32 .lds builds Greg Kroah-Hartman
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