From: Dan Williams <dan.j.williams@intel.com>
To: Jerry Snitselaar <jsnitsel@redhat.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Christian Bundy <christianbundy@fraction.io>,
Peter Huewe <peterhuewe@gmx.de>,
Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
Jason Gunthorpe <jgg@ziepe.ca>,
Stefan Berger <stefanb@linux.vnet.ibm.com>,
stable <stable@vger.kernel.org>,
linux-integrity@vger.kernel.org
Subject: Re: [PATCH v2] tpm_tis: reserve chip for duration of tpm_tis_core_init
Date: Wed, 11 Dec 2019 18:15:50 -0800 [thread overview]
Message-ID: <CAPcyv4j_FJ9teSyfodCjXs5Wz2Pj7BjqKX6Mx53OtPnVu0mjGA@mail.gmail.com> (raw)
In-Reply-To: <20191211235455.24424-1-jsnitsel@redhat.com>
On Wed, Dec 11, 2019 at 3:56 PM Jerry Snitselaar <jsnitsel@redhat.com> wrote:
>
> Instead of repeatedly calling tpm_chip_start/tpm_chip_stop when
> issuing commands to the tpm during initialization, just reserve the
> chip after wait_startup, and release it when we are ready to call
> tpm_chip_register.
>
> Cc: Christian Bundy <christianbundy@fraction.io>
> Cc: Dan Williams <dan.j.williams@intel.com>
> Cc: Peter Huewe <peterhuewe@gmx.de>
> Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
> Cc: Jason Gunthorpe <jgg@ziepe.ca>
> Cc: Stefan Berger <stefanb@linux.vnet.ibm.com>
> Cc: stable@vger.kernel.org
> Cc: linux-integrity@vger.kernel.org
> Fixes: a3fbfae82b4c ("tpm: take TPM chip power gating out of tpm_transmit()")
> Fixes: 5b359c7c4372 ("tpm_tis_core: Turn on the TPM before probing IRQ's")
Ugh, sorry, I guess this jinxed it. This patch does not address the
IRQ storm on the platform I reported earlier.
next prev parent reply other threads:[~2019-12-12 2:16 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20191211231758.22263-1-jsnitsel@redhat.com>
2019-12-11 23:26 ` [PATCH] tpm_tis: reserve chip for duration of tpm_tis_core_init Jerry Snitselaar
2019-12-11 23:30 ` Dan Williams
2019-12-11 23:49 ` Jerry Snitselaar
2019-12-11 23:54 ` [PATCH v2] " Jerry Snitselaar
2019-12-12 2:15 ` Dan Williams [this message]
2019-12-12 2:18 ` Dan Williams
2019-12-17 1:25 ` Jarkko Sakkinen
2019-12-17 0:58 ` Jarkko Sakkinen
2019-12-17 1:18 ` Dan Williams
2019-12-17 2:00 ` Jerry Snitselaar
2019-12-17 2:14 ` Dan Williams
2019-12-17 12:05 ` Jarkko Sakkinen
2019-12-17 17:18 ` Jerry Snitselaar
2019-12-17 17:26 ` Jerry Snitselaar
2019-12-18 23:09 ` Jarkko Sakkinen
2019-12-18 23:06 ` Jarkko Sakkinen
2019-12-18 23:31 ` Dan Williams
2019-12-19 10:07 ` Jerry Snitselaar
2019-12-27 5:09 ` Jarkko Sakkinen
2019-12-27 5:42 ` Jarkko Sakkinen
2019-12-27 6:03 ` Jarkko Sakkinen
2019-12-17 20:29 ` Jerry Snitselaar
2019-12-18 23:12 ` Jarkko Sakkinen
2019-12-17 1:19 ` Jarkko Sakkinen
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