Praneeth, srcrev in kernel recipe for kirkstone branch needs to be bumped. The last CICD build was 6-Sep - also a good idea to trigger another full build.
Regards, Anand -----Original Message----- From: Bajjuri, Praneeth <[email protected]> Sent: Friday, September 15, 2023 9:47 PM To: Balagopalakrishnan, Anand <[email protected]>; Denys Dmytriyenko <[email protected]> Cc: [email protected]; Eatmon, Ryan <[email protected]>; Adivi, Sai Sree Kartheek <[email protected]>; Gupta, Gyan <[email protected]>; Khasim, Syed Mohammed <[email protected]>; Pothukuchi, Vijay <[email protected]> Subject: Re: [EXTERNAL] Re: [meta-ti] [RFC|kirkstone] linux-ti-staging: add config preempt for am335x and am437x On 9/14/2023 8:47 PM, Balagopalakrishnan, Anand wrote: > Hi Denys, > > This is only needed for v7 platforms like AM3 / AM4 and possibly AM57x also. > CONFIG_PREEMPT is enabled by default on arm64 platforms like AM65x. > > Praneeth will send a kernel patch for TI kernel. This meta-ti patch is meant > to unblock anyone who wants to enable SGX drive in the meanwhile. This patch can be abandoned . https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/commit/?h=ti-linux-6.1.y-cicd&id=e025e31126fff01ded59d901af916abe87646ca6 enables CONFIG_PREEMPT > > Regards, > Anand > > -----Original Message----- > From: Denys Dmytriyenko <[email protected]> > Sent: Friday, September 15, 2023 1:25 AM > To: Balagopalakrishnan, Anand <[email protected]> > Cc: [email protected]; Eatmon, Ryan <[email protected]>; Adivi, Sai > Sree Kartheek <[email protected]>; Gupta, Gyan <[email protected]>; Khasim, Syed > Mohammed <[email protected]>; Pothukuchi, Vijay <[email protected]>; Bajjuri, > Praneeth <[email protected]> > Subject: [EXTERNAL] Re: [meta-ti] [RFC|kirkstone] linux-ti-staging: add > config preempt for am335x and am437x > > On Thu, Sep 14, 2023 at 03:36:18PM -0400, Denys Dmytriyenko wrote: >> On Thu, Sep 14, 2023 at 10:40:26PM +0530, Anand Balagopalakrishnan via >> lists.yoctoproject.org wrote: >>> 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. >> >> Hi, Anand, >> >> Is this only needed for am335x and am437x, as the subject suggests? If >> so, why the code adds the config fragment to all platforms? >> >> Second question - historically this has been enabled in the TI kernel itself. >> Why not do it like that again, why add the fragment to the OE metadata >> instead of keeping it in-tree? How the distro-agnostic approach would be >> handled? >> >> >>> Signed-off-by: Anand Balagopalakrishnan <[email protected]> >>> --- >>> .../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 >> >> This is not the right location for the file. You want to add to the >> linux-ti-staging-rt-6.1/ directory, since you are only using it from >> the corresponding linux-ti-staging_6.1.bb recipe. > > Sorry, typo here - linux-ti-staging-6.1/ directory, if it's not RT-specific. > >> >>> @@ -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" >> >> Since this file is out-of-tree and in the OE metadata, it would also >> require listing it in SRC_URI. >> >> >>> SRC_URI += >>> "${KERNEL_GIT_URI};protocol=${KERNEL_GIT_PROTOCOL};branch=${BRANCH} \ >>> file://defconfig" >>> >>> -- >>> 2.34.1
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