From: Scot Doyle <lkml14@scotdoyle.com>
To: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Cc: Michael Mullin <masmullin@gmail.com>,
Peter Huewe <peterhuewe@gmx.de>,
Ashley Lai <ashley@ashleylai.com>,
Marcel Selhorst <tpmdd@selhorst.net>,
Luigi Semenzato <semenzato@google.com>,
tpmdd-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH v8] tpm_tis: verify interrupt during init
Date: Tue, 23 Sep 2014 02:44:51 +0000 (UTC) [thread overview]
Message-ID: <alpine.DEB.2.11.1409230232080.3995@localhost.localdomain> (raw)
In-Reply-To: <20140922171338.GB28082@obsidianresearch.com>
On Mon, 22 Sep 2014, Jason Gunthorpe wrote:
> On Thu, Sep 11, 2014 at 12:50:00AM +0000, Scot Doyle wrote:
>> + if (!priv->irq_tested) {
>
> I think the sleep and check is still needed here, the IRQ delivery
> could race relative to the MMIO read of completion, a sleep is the
> only way we could attempt to synchronize them..
>
>> + disable_interrupts(chip);
>> + dev_err(chip->dev,
>> + FW_BUG "TPM interrupt not working, polling instead\n");
>> + }
>> + priv->irq_tested = true;
>> + return rc;
>> +}
We re-tested this v9 patch. It has the msleep(1) added just above this
section for better formatting, as well as a devm_kzalloc check in
tpm_tis_init. Thanks!
next prev parent reply other threads:[~2014-09-23 2:45 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-22 0:58 [PATCH] tpm_tis: Verify ACPI-specified interrupt Scot Doyle
2014-08-22 16:06 ` Jason Gunthorpe
2014-08-22 20:17 ` Scot Doyle
2014-08-22 20:32 ` Jason Gunthorpe
2014-08-22 22:48 ` Peter Hüwe
2014-08-25 6:38 ` Scot Doyle
2014-08-25 18:24 ` Jason Gunthorpe
2014-08-27 4:31 ` [RFC PATCH v2] tpm_tis: verify interrupt during init Scot Doyle
2014-08-27 17:31 ` Jason Gunthorpe
2014-08-27 21:32 ` [RFC PATCH v3] " Scot Doyle
2014-08-27 21:47 ` Jason Gunthorpe
2014-08-28 0:35 ` Scot Doyle
2014-08-28 16:53 ` Jason Gunthorpe
2014-08-29 23:59 ` [RFC PATCH v4] " Scot Doyle
2014-08-30 17:49 ` Jason Gunthorpe
2014-08-30 23:23 ` [RFC PATCH v5] " Scot Doyle
2014-09-02 17:20 ` Jason Gunthorpe
2014-09-02 20:22 ` [RFC PATCH v6] " Scot Doyle
2014-09-08 22:02 ` Jason Gunthorpe
2014-09-09 2:13 ` [PATCH v7] " Scot Doyle
2014-09-09 3:12 ` Scot Doyle
2014-09-11 0:50 ` [RFC PATCH v8] " Scot Doyle
2014-09-16 23:36 ` Scot Doyle
2014-09-22 17:13 ` Jason Gunthorpe
2014-09-22 19:01 ` Peter Hüwe
2014-10-19 20:08 ` Scot Doyle
2014-09-23 2:44 ` Scot Doyle [this message]
2014-09-23 2:51 ` [PATCH v9] " Scot Doyle
2014-09-23 11:55 ` Scot Doyle
2014-09-23 17:12 ` [tpmdd-devel] " Stefan Berger
2014-09-24 19:38 ` Scot Doyle
2014-09-24 19:41 ` Stefan Berger
2014-09-24 22:41 ` [PATCH v10] " Scot Doyle
2014-09-29 17:24 ` Jason Gunthorpe
2014-11-30 14:24 ` Peter Hüwe
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