From patchwork Thu Sep 14 17:10:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anand Balagopalakrishnan X-Patchwork-Id: 30455 X-Patchwork-Delegate: reatmon@ti.com Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 754EEEEAA5B for ; Thu, 14 Sep 2023 17:10:51 +0000 (UTC) Received: from lelv0142.ext.ti.com (lelv0142.ext.ti.com [198.47.23.249]) by mx.groups.io with SMTP id smtpd.web11.258.1694711446787205220 for ; Thu, 14 Sep 2023 10:10:47 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=bjBkvYqK; spf=pass (domain: ti.com, ip: 198.47.23.249, mailfrom: anandb@ti.com) Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 38EHAkHa026750 for ; Thu, 14 Sep 2023 12:10:46 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1694711446; bh=9olvn4GVRXc3ML6JDf5HG0Ha20gEKrX46A/zjHgtVNw=; h=From:To:CC:Subject:Date; b=bjBkvYqKBaC17SBs83PMmnlMDBLkMEoL0iOX/wdyD8xnyxl7ywlrFGgJPqVj4FbnD RDwBStMz52nXuEiwsdA2TU/sbu1lfLtk+o61Uk3NIFaprz7BPCHRXOJ0ngYPVDRqYE QpvVjigEPwXvSM+TibMmV2j7A7KgqtLvrpG10H/Q= Received: from DLEE113.ent.ti.com (dlee113.ent.ti.com [157.170.170.24]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 38EHAkra094728 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Thu, 14 Sep 2023 12:10:46 -0500 Received: from DLEE108.ent.ti.com (157.170.170.38) by DLEE113.ent.ti.com (157.170.170.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Thu, 14 Sep 2023 12:10:44 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE108.ent.ti.com (157.170.170.38) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Thu, 14 Sep 2023 12:10:44 -0500 Received: from uda0876520.dhcp.ti.com (ileaxei01-snat.itg.ti.com [10.180.69.5]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 38EHAfsp027244; Thu, 14 Sep 2023 12:10:42 -0500 From: Anand Balagopalakrishnan To: CC: , , , , , , Anand Balagopalakrishnan Subject: [RFC|kirkstone] linux-ti-staging: add config preempt for am335x and am437x Date: Thu, 14 Sep 2023 22:40:26 +0530 Message-ID: <20230914171026.3014887-1-anandb@ti.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Thu, 14 Sep 2023 17:10:51 -0000 X-Groupsio-URL: https://lists.yoctoproject.org/g/meta-ti/message/16968 SGX needs a preemptible kernel. CONFIG_PREEMPT has always been enabled on TI Linux kernels upto K5.1. This is enabled on AM65x by default but missed out AM335x and AM437x. Add a kernel config fragment to enable config preempt. Signed-off-by: Anand Balagopalakrishnan --- .../linux/files/configs/config-preempt.cfg | 12 ++++++++++++ .../recipes-kernel/linux/linux-ti-staging_6.1.bb | 1 + 2 files changed, 13 insertions(+) create mode 100644 meta-ti-bsp/recipes-kernel/linux/files/configs/config-preempt.cfg diff --git a/meta-ti-bsp/recipes-kernel/linux/files/configs/config-preempt.cfg b/meta-ti-bsp/recipes-kernel/linux/files/configs/config-preempt.cfg new file mode 100644 index 00000000..c1e5ad7d --- /dev/null +++ b/meta-ti-bsp/recipes-kernel/linux/files/configs/config-preempt.cfg @@ -0,0 +1,12 @@ +CONFIG_PREEMPT_BUILD=y +# CONFIG_PREEMPT_NONE is not set +CONFIG_PREEMPT=y +CONFIG_PREEMPT_COUNT=y +CONFIG_PREEMPTION=y +CONFIG_PREEMPT_RCU=y +CONFIG_TASKS_RCU_GENERIC=y +CONFIG_TASKS_RCU=y +CONFIG_UNINLINE_SPIN_UNLOCK=y +# CONFIG_CEC_GPIO is not set +CONFIG_DEBUG_PREEMPT=y +# CONFIG_PREEMPT_TRACER is not set diff --git a/meta-ti-bsp/recipes-kernel/linux/linux-ti-staging_6.1.bb b/meta-ti-bsp/recipes-kernel/linux/linux-ti-staging_6.1.bb index 8a883878..0ee63358 100644 --- a/meta-ti-bsp/recipes-kernel/linux/linux-ti-staging_6.1.bb +++ b/meta-ti-bsp/recipes-kernel/linux/linux-ti-staging_6.1.bb @@ -33,6 +33,7 @@ PR = "${MACHINE_KERNEL_PR}" KERNEL_GIT_URI ?= "git://git.ti.com/git/ti-linux-kernel/ti-linux-kernel.git" KERNEL_GIT_PROTOCOL = "https" +KERNEL_CONFIG_FRAGMENTS += "${WORKDIR}/config-preempt.cfg" SRC_URI += "${KERNEL_GIT_URI};protocol=${KERNEL_GIT_PROTOCOL};branch=${BRANCH} \ file://defconfig"