linux-edac.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Serge Semin <Sergey.Semin@baikalelectronics.ru>
To: Rob Herring <robh@kernel.org>,
	Michal Simek <michal.simek@xilinx.com>,
	Borislav Petkov <bp@alien8.de>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Tony Luck <tony.luck@intel.com>,
	James Morse <james.morse@arm.com>,
	Robert Richter <rric@kernel.org>,
	Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Cc: Serge Semin <Sergey.Semin@baikalelectronics.ru>,
	Serge Semin <fancer.lancer@gmail.com>,
	Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>,
	Michail Ivanov <Michail.Ivanov@baikalelectronics.ru>,
	Pavel Parkhomenko <Pavel.Parkhomenko@baikalelectronics.ru>,
	Punnaiah Choudary Kalluri  <punnaiah.choudary.kalluri@xilinx.com>,
	Manish Narani <manish.narani@xilinx.com>,
	Dinh Nguyen <dinguyen@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	<devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-edac@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	Borislav Petkov <bp@suse.de>
Subject: [PATCH 05/20] EDAC/synopsys: Fix reading errors count before ECC status
Date: Mon, 22 Aug 2022 22:07:15 +0300	[thread overview]
Message-ID: <20220822190730.27277-6-Sergey.Semin@baikalelectronics.ru> (raw)
In-Reply-To: <20220822190730.27277-1-Sergey.Semin@baikalelectronics.ru>

Aside with fixing the errors count CSR usage the commit e2932d1f6f05
("EDAC/synopsys: Read the error count from the correct register") all of
the sudden has also changed the order of the errors status check
procedure. So now the errors handler method first reads the number of CE
and UE and only then makes sure that any of these errors have actually
happened. It doesn't make much sense. Let's fix that by getting back the
procedures order: first check the ECC status, then read the number of
errors.

Fixes: e2932d1f6f05 ("EDAC/synopsys: Read the error count from the correct register")
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
---
 drivers/edac/synopsys_edac.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/edac/synopsys_edac.c b/drivers/edac/synopsys_edac.c
index 873dbc684fe6..14653b799901 100644
--- a/drivers/edac/synopsys_edac.c
+++ b/drivers/edac/synopsys_edac.c
@@ -422,18 +422,18 @@ static int zynqmp_get_error_info(struct synps_edac_priv *priv)
 	base = priv->baseaddr;
 	p = &priv->stat;
 
-	regval = readl(base + ECC_ERRCNT_OFST);
-	p->ce_cnt = regval & ECC_ERRCNT_CECNT_MASK;
-	p->ue_cnt = (regval & ECC_ERRCNT_UECNT_MASK) >> ECC_ERRCNT_UECNT_SHIFT;
-	if (!p->ce_cnt)
-		goto ue_err;
-
 	regval = readl(base + ECC_STAT_OFST);
 	if (!regval)
 		return 1;
 
 	p->ceinfo.bitpos = (regval & ECC_STAT_BITNUM_MASK);
 
+	regval = readl(base + ECC_ERRCNT_OFST);
+	p->ce_cnt = regval & ECC_ERRCNT_CECNT_MASK;
+	p->ue_cnt = (regval & ECC_ERRCNT_UECNT_MASK) >> ECC_ERRCNT_UECNT_SHIFT;
+	if (!p->ce_cnt)
+		goto ue_err;
+
 	regval = readl(base + ECC_CEADDR0_OFST);
 	p->ceinfo.row = (regval & ECC_CEADDR0_RW_MASK);
 	regval = readl(base + ECC_CEADDR1_OFST);
-- 
2.35.1


  parent reply	other threads:[~2022-08-22 19:08 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-22 19:07 [PATCH 00/20] EDAC/mc/synopsys: Various fixes and cleanups Serge Semin
2022-08-22 19:07 ` [PATCH 01/20] EDAC/synopsys: Fix native uMCTL2 IRQs handling procedure Serge Semin
2022-08-22 19:07 ` [PATCH 02/20] EDAC/synopsys: Fix generic device type detection procedure Serge Semin
2022-08-22 19:07 ` [PATCH 03/20] EDAC/synopsys: Fix mci->scrub_cap field setting Serge Semin
2022-08-22 19:07 ` [PATCH 04/20] EDAC/synopsys: Drop erroneous ADDRMAP4.addrmap_col_b10 parse Serge Semin
2022-08-22 19:07 ` Serge Semin [this message]
2022-08-22 19:07 ` [PATCH 06/20] EDAC/synopsys: Use platform device devm ioremap method Serge Semin
2022-08-22 19:07 ` [PATCH 07/20] EDAC/synopsys: Drop internal CE and UE counters Serge Semin
2022-08-22 19:07 ` [PATCH 08/20] EDAC/synopsys: Drop local to_mci macro implementation Serge Semin
2022-08-22 19:07 ` [PATCH 09/20] EDAC/synopsys: Drop struct ecc_error_info.blknr field Serge Semin
2022-08-22 19:07 ` [PATCH 10/20] EDAC/synopsys: Shorten out struct ecc_error_info.bankgrpnr field name Serge Semin
2022-08-22 19:07 ` [PATCH 11/20] EDAC/synopsys: Drop redundant info from error message Serge Semin
2022-08-22 19:07 ` [PATCH 12/20] EDAC/mc: Replace spaces with tabs in memtype flags definition Serge Semin
2022-09-01  6:59   ` Borislav Petkov
2022-08-22 19:07 ` [PATCH 13/20] EDAC/mc: Drop duplicated dimm->nr_pages debug printout Serge Semin
2022-09-01  7:00   ` Borislav Petkov
2022-08-22 19:07 ` [PATCH 14/20] EDAC/mc: Init DIMM labels in MC registration method Serge Semin
2022-08-22 19:07 ` [PATCH 15/20] EDAC/mc: Add MC unique index allocation procedure Serge Semin
2022-08-22 19:07 ` [PATCH 16/20] dt-bindings: memory: snps: Detach Zynq DDRC controller support Serge Semin
2022-08-23  8:17   ` Krzysztof Kozlowski
2022-08-23  8:22     ` Krzysztof Kozlowski
2022-08-23  8:27       ` Serge Semin
2022-08-23  8:30         ` Krzysztof Kozlowski
2022-08-23  8:36           ` Serge Semin
2022-08-23  8:25     ` Serge Semin
2022-08-23  8:32     ` Serge Semin
2022-08-23  8:44       ` Krzysztof Kozlowski
2022-08-23 11:45         ` Serge Semin
2022-08-23 12:03           ` Krzysztof Kozlowski
2022-08-24 17:27             ` Serge Semin
2022-08-25  6:06               ` Krzysztof Kozlowski
2022-08-25 13:23                 ` Serge Semin
2022-08-23  8:26   ` Krzysztof Kozlowski
2022-08-22 19:07 ` [PATCH 17/20] EDAC/synopsys: " Serge Semin
2022-08-22 19:07 ` [PATCH 18/20] EDAC/synopsys: Drop unused platform-specific setup API Serge Semin
2022-08-23 23:42   ` kernel test robot
2022-08-22 19:07 ` [PATCH 19/20] EDAC/synopsys: Unify the driver entities naming Serge Semin
2022-08-24  1:15   ` kernel test robot
2022-08-22 19:07 ` [PATCH 20/20] EDAC/synopsys: Convert to using BIT/GENMASK/FIELD_x macros Serge Semin

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20220822190730.27277-6-Sergey.Semin@baikalelectronics.ru \
    --to=sergey.semin@baikalelectronics.ru \
    --cc=Alexey.Malahov@baikalelectronics.ru \
    --cc=Michail.Ivanov@baikalelectronics.ru \
    --cc=Pavel.Parkhomenko@baikalelectronics.ru \
    --cc=bp@alien8.de \
    --cc=bp@suse.de \
    --cc=devicetree@vger.kernel.org \
    --cc=dinguyen@kernel.org \
    --cc=fancer.lancer@gmail.com \
    --cc=james.morse@arm.com \
    --cc=krzysztof.kozlowski+dt@linaro.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-edac@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=manish.narani@xilinx.com \
    --cc=mchehab@kernel.org \
    --cc=michal.simek@xilinx.com \
    --cc=punnaiah.choudary.kalluri@xilinx.com \
    --cc=robh+dt@kernel.org \
    --cc=robh@kernel.org \
    --cc=rric@kernel.org \
    --cc=shubhrajyoti.datta@xilinx.com \
    --cc=tony.luck@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).