diff options
| author | Max Krummenacher <max.krummenacher@toradex.com> | 2024-03-01 10:56:05 +0100 |
|---|---|---|
| committer | Max Krummenacher <max.krummenacher@toradex.com> | 2024-03-13 15:56:59 +0100 |
| commit | 8c80d93720e79cf6d6c4668211585a834d24822e (patch) | |
| tree | 45cc7e21651df7803f4cb8d1537362ddb654a6b5 | |
| parent | be05799626a370455cdf9cc60bf273858dd71c33 (diff) | |
linux-toradex-ti: add variant building with rt patch applied
If preempt-rt is in overrides apply the RT patch on top of our regular
kernel tree and configure the kernel for PREEMPT-RT.
Related-to: ELB-5243
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
(cherry picked from commit f4a2c0c228eaeb15c399e7341068da3f7d375d10)
5 files changed, 46 insertions, 0 deletions
diff --git a/recipes-kernel/linux/linux-toradex-ti-6.1/preempt-rt-less-latency.cfg b/recipes-kernel/linux/linux-toradex-ti-6.1/preempt-rt-less-latency.cfg new file mode 100644 index 0000000..a9c88bd --- /dev/null +++ b/recipes-kernel/linux/linux-toradex-ti-6.1/preempt-rt-less-latency.cfg @@ -0,0 +1,14 @@ +# CONFIG_PM_DEBUG is not set +# CONFIG_6LOWPAN_DEBUGFS is not set +# CONFIG_BT_DEBUGFS is not set +# CONFIG_ATH9K_DEBUGFS is not set +# CONFIG_ATH9K_HTC_DEBUGFS is not set +# CONFIG_ATH10K_DEBUGFS is not set +# CONFIG_RTLWIFI_DEBUG is not set +# CONFIG_IEEE802154_AT86RF230_DEBUGFS is not set +# CONFIG_DYNAMIC_DEBUG is not set +# CONFIG_DETECT_HUNG_TASK is not set +# CONFIG_SCHEDSTATS is not set +# CONFIG_SCHED_DEBUG is not set +# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_CORESIGHT is not set diff --git a/recipes-kernel/linux/linux-toradex-ti-6.1/preempt-rt-less-latency.scc b/recipes-kernel/linux/linux-toradex-ti-6.1/preempt-rt-less-latency.scc new file mode 100644 index 0000000..edd1519 --- /dev/null +++ b/recipes-kernel/linux/linux-toradex-ti-6.1/preempt-rt-less-latency.scc @@ -0,0 +1,4 @@ +define KFEATURE_DESCRIPTION "Disable configs that could lead to preempt-rt latency" +define KFEATURE_COMPATIBILITY board + +kconf non-hardware preempt-rt-less-latency.cfg diff --git a/recipes-kernel/linux/linux-toradex-ti-6.1/preempt-rt.cfg b/recipes-kernel/linux/linux-toradex-ti-6.1/preempt-rt.cfg new file mode 100644 index 0000000..17b06b1 --- /dev/null +++ b/recipes-kernel/linux/linux-toradex-ti-6.1/preempt-rt.cfg @@ -0,0 +1,6 @@ +CONFIG_EXPERT=y +# CONFIG_KVM is not set +# CONFIG_PREEMPT_NONE is not set +# CONFIG_PREEMPT_VOLUNTARY is not set +# CONFIG_PREEMPT is not set +CONFIG_PREEMPT_RT=y diff --git a/recipes-kernel/linux/linux-toradex-ti-6.1/preempt-rt.scc b/recipes-kernel/linux/linux-toradex-ti-6.1/preempt-rt.scc new file mode 100644 index 0000000..82d27dc --- /dev/null +++ b/recipes-kernel/linux/linux-toradex-ti-6.1/preempt-rt.scc @@ -0,0 +1,4 @@ +define KFEATURE_DESCRIPTION "Enable Features needed by preempt-rt" +define KFEATURE_COMPATIBILITY board + +kconf non-hardware preempt-rt.cfg diff --git a/recipes-kernel/linux/linux-toradex-ti_6.1.bb b/recipes-kernel/linux/linux-toradex-ti_6.1.bb index b7d5957..bfb25aa 100644 --- a/recipes-kernel/linux/linux-toradex-ti_6.1.bb +++ b/recipes-kernel/linux/linux-toradex-ti_6.1.bb @@ -3,6 +3,8 @@ SUMMARY = "Linux kernel for Toradex TI based modules" LICENSE = "GPL-2.0-only" LIC_FILES_CHKSUM = "file://COPYING;md5=6bc538ed5bd9a7fc9398086aedcd7e46" +FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}-${PV}:" + SRC_URI = " \ git://git.toradex.com/linux-toradex.git;protocol=https;branch=${SRCBRANCH};name=machine \ " @@ -53,3 +55,19 @@ KBUILD_DEFCONFIG ?= "toradex_defconfig" # We need to pass it as param since kernel might support more then one # machine, with different entry points KERNEL_EXTRA_ARGS += "LOADADDR=${UBOOT_ENTRYPOINT}" + +############################################################################### +# Apply the RT patch and change the configuration to use PREMPT_RT when the +# preempt-rt override is set. +############################################################################### + +# patches get moved into the 'older' directory when superseeded, so provide +# both possible storage locations. +MIRRORS:append:preempt-rt = "${KERNELORG_MIRROR}/linux/kernel/projects/rt/5.15/older/ ${KERNELORG_MIRROR}/linux/kernel/projects/rt/5.15/" +SRC_URI:append:preempt-rt = " \ + ${KERNELORG_MIRROR}/linux/kernel/projects/rt/6.1/older/patch-6.1.46-rt13.patch.xz;name=rt-patch \ + file://preempt-rt.scc \ + file://preempt-rt-less-latency.scc \ +" + +SRC_URI[rt-patch.sha256sum] = "df29cf27bb7ef0b7750f541d959b791905a5d41a322896f9a4bb57b5ab00f202" |