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From: Benjamin Herrenschmidt <benh@au1.ibm.com>
To: Michael Ellerman <mpe@ellerman.id.au>, bsingharora@gmail.com
Cc: linuxppc-dev@ozlabs.org
Subject: Re: [PATCH v3] powerpc/xics: Work around limitations of OPAL XICS priority handling
Date: Mon, 06 Mar 2017 10:10:02 +1100	[thread overview]
Message-ID: <1488755402.2870.118.camel@au1.ibm.com> (raw)
In-Reply-To: <1488629006-17180-1-git-send-email-mpe@ellerman.id.au>

On Sat, 2017-03-04 at 23:03 +1100, Michael Ellerman wrote:
> +
> +       /* Allow "sufficient" time to drop any inflight IRQ's */
> +       mdelay(1);
> +

According to the HW guys, that should be 5ms in case the powerbus is
really really busy.

Cheers,
Ben.

  reply	other threads:[~2017-03-05 23:11 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-04 12:03 [PATCH v3] powerpc/xics: Work around limitations of OPAL XICS priority handling Michael Ellerman
2017-03-05 23:10 ` Benjamin Herrenschmidt [this message]
2017-03-06  9:36   ` Michael Ellerman
2017-03-06 10:52     ` Benjamin Herrenschmidt

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