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Message-ID: <AS8PR04MB840489588D0DA46B8FFECFFF92F59@AS8PR04MB8404.eurprd04.prod.outlook.com>
Date: Wed, 20 Apr 2022 06:23:59 +0000
From: Sherry Sun <sherry.sun@....com>
To: Michal Simek <michal.simek@...inx.com>,
"bp@...en8.de" <bp@...en8.de>,
"mchehab@...nel.org" <mchehab@...nel.org>,
"tony.luck@...el.com" <tony.luck@...el.com>,
"james.morse@....com" <james.morse@....com>,
"rric@...nel.org" <rric@...nel.org>
CC: "linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH 2/2] EDAC: synopsys: re-enable the interrupts in
intr_handler for V3.X Synopsys EDAC DDR
> > Since zynqmp_get_error_info() is called during CE/UE interrupt, at the
> > end of zynqmp_get_error_info(), it wirtes 0 to ECC_CLR_OFST, which cause
> > the CE/UE interrupts of V3.X Synopsys EDAC DDR been disabled, then the
> > interrupt handler will be called only once, so need to re-enable the
> > interrupts at the end of intr_handler for V3.X Synopsys EDAC DDR.
> >
> > Signed-off-by: Sherry Sun <sherry.sun@....com>
> > ---
> > drivers/edac/synopsys_edac.c | 4 ++++
> > 1 file changed, 4 insertions(+)
> >
> > diff --git a/drivers/edac/synopsys_edac.c b/drivers/edac/synopsys_edac.c
> > index 1b630f0be119..3a1db34a8546 100644
> > --- a/drivers/edac/synopsys_edac.c
> > +++ b/drivers/edac/synopsys_edac.c
> > @@ -521,6 +521,8 @@ static void handle_error(struct mem_ctl_info *mci,
> struct synps_ecc_status *p)
> > memset(p, 0, sizeof(*p));
> > }
> >
> > +static void enable_intr(struct synps_edac_priv *priv);
> > +
> > /**
> > * intr_handler - Interrupt Handler for ECC interrupts.
> > * @irq: IRQ number.
> > @@ -562,6 +564,8 @@ static irqreturn_t intr_handler(int irq, void *dev_id)
> > /* v3.0 of the controller does not have this register */
> > if (!(priv->p_data->quirks & DDR_ECC_INTR_SELF_CLEAR))
> > writel(regval, priv->baseaddr + DDR_QOS_IRQ_STAT_OFST);
> > + else
> > + enable_intr(priv);
>
> nit: newline here would be good.
Hi Michal, thanks for your comments, I will add the newline here in V2.
Best regards
Sherry
>
> > return IRQ_HANDLED;
> > }
> >
>
> Acked-by: Michal Simek <michal.simek@...inx.com>
>
> Thanks,
> Michal
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