From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 10BB59443 for ; Sun, 13 Aug 2023 21:24:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8B715C433C7; Sun, 13 Aug 2023 21:24:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1691961861; bh=HXglDCR0bXRO0+kfU3gmDgzDz5YsPpMcER/unWMgpKw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jgMZHiWdlW9E6xizzZLyVwm6aSy+tf74A4MC1rcRbF5WepsVZtvpWnws++Dbl9w2K iEp3H9HbYGeGc0R/s66vMQhi9ofXiK7k7PhleBu5zQwFmPBsLrOEYe1NvjCEhCz3Vg sWwCaYVD0P+YFtLhBg+LNtM9IszqyPKM2kekH0JM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jonathan McDowell , Jarkko Sakkinen Subject: [PATCH 6.4 003/206] tpm/tpm_tis: Disable interrupts for Lenovo P620 devices Date: Sun, 13 Aug 2023 23:16:13 +0200 Message-ID: <20230813211725.072395309@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230813211724.969019629@linuxfoundation.org> References: <20230813211724.969019629@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Jonathan McDowell commit e117e7adc637e364b599dc766f1d740698e7e027 upstream. The Lenovo ThinkStation P620 suffers from an irq storm issue like various other Lenovo machines, so add an entry for it to tpm_tis_dmi_table and force polling. It is worth noting that 481c2d14627d (tpm,tpm_tis: Disable interrupts after 1000 unhandled IRQs) does not seem to fix the problem on this machine, but setting 'tpm_tis.interrupts=0' on the kernel command line does. [jarkko@kernel.org: truncated the commit ID in the description to 12 characters] Cc: stable@vger.kernel.org # v6.4+ Fixes: e644b2f498d2 ("tpm, tpm_tis: Enable interrupt test") Signed-off-by: Jonathan McDowell Reviewed-by: Jarkko Sakkinen Signed-off-by: Jarkko Sakkinen Signed-off-by: Greg Kroah-Hartman --- drivers/char/tpm/tpm_tis.c | 8 ++++++++ 1 file changed, 8 insertions(+) --- a/drivers/char/tpm/tpm_tis.c +++ b/drivers/char/tpm/tpm_tis.c @@ -164,6 +164,14 @@ static const struct dmi_system_id tpm_ti }, { .callback = tpm_tis_disable_irq, + .ident = "ThinkStation P620", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkStation P620"), + }, + }, + { + .callback = tpm_tis_disable_irq, .ident = "TUXEDO InfinityBook S 15/17 Gen7", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"),