diff options
author | Ming Liu <ming.liu@toradex.com> | 2020-11-10 20:14:11 +0100 |
---|---|---|
committer | Ming Liu <ming.liu@toradex.com> | 2020-11-12 19:16:55 +0100 |
commit | 2fb9cca9965e345915488b5693d63c0e137ae3ce (patch) | |
tree | 3cd6a50b44159298610963aac0535fbafe6e7d28 /recipes-kernel | |
parent | 8c080afc33399c39e8c11691f8b1339a54231093 (diff) |
linux-toradex-mainline: disable configs that lead to latency
Explicitly disable kernel configs that could lead to latency on
preempt-rt kernel.
Also explicitly enable CONFIG_EXPERT which is being depended by
CONFIG_PREEMPT_RT.
Related-to: TOR-1354
Signed-off-by: Ming Liu <ming.liu@toradex.com>
Diffstat (limited to 'recipes-kernel')
4 files changed, 20 insertions, 0 deletions
diff --git a/recipes-kernel/linux/linux-toradex-mainline-5.4/preempt-rt-less-latency.cfg b/recipes-kernel/linux/linux-toradex-mainline-5.4/preempt-rt-less-latency.cfg new file mode 100644 index 0000000..a9c88bd --- /dev/null +++ b/recipes-kernel/linux/linux-toradex-mainline-5.4/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-mainline-5.4/preempt-rt-less-latency.scc b/recipes-kernel/linux/linux-toradex-mainline-5.4/preempt-rt-less-latency.scc new file mode 100644 index 0000000..edd1519 --- /dev/null +++ b/recipes-kernel/linux/linux-toradex-mainline-5.4/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-mainline-5.4/preempt-rt.cfg b/recipes-kernel/linux/linux-toradex-mainline-5.4/preempt-rt.cfg index 93e05af..f76e447 100644 --- a/recipes-kernel/linux/linux-toradex-mainline-5.4/preempt-rt.cfg +++ b/recipes-kernel/linux/linux-toradex-mainline-5.4/preempt-rt.cfg @@ -1,3 +1,4 @@ +CONFIG_EXPERT=y # CONFIG_PREEMPT_NONE is not set # CONFIG_PREEMPT_VOLUNTARY is not set # CONFIG_PREEMPT is not set diff --git a/recipes-kernel/linux/linux-toradex-mainline_5.4.bb b/recipes-kernel/linux/linux-toradex-mainline_5.4.bb index b3643bb..594819f 100644 --- a/recipes-kernel/linux/linux-toradex-mainline_5.4.bb +++ b/recipes-kernel/linux/linux-toradex-mainline_5.4.bb @@ -15,6 +15,7 @@ require recipes-kernel/linux/linux-toradex-mainline.inc SRC_URI_append_preempt-rt = " \ ${KERNELORG_MIRROR}/linux/kernel/projects/rt/5.4/older/patch-5.4.61-rt37.patch.xz;name=rt-patch \ file://preempt-rt.scc \ + file://preempt-rt-less-latency.scc \ " SRC_URI[rt-patch.md5sum] = "5a72e4f56ffdd79c8c668197f989f8d1" SRC_URI[rt-patch.sha256sum] = "b2b52be0ef8b56a44a898ffc6a54515508e3cc9b2faece7a7d9f5d617a29ede1" |