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62ec8e470d
Integrating the latest 4.19-rt to the preempt-rt branches, the -rt
release announcements summarize the changes:
Changes since v4.19.25-rt15:
- The "preserve task state" change in cpu_chill() in the previous
release is responsible for missing a wake up. Reported by Mike
Galbraith.
- The x86-32 lazy preempt code was broken. Reported by Andri Yngvason.
Changes since v4.19.23-rt13:
- Use the specified preempt mask in should_resched() on x86. Otherwise
a scheduling opportunity of non RT tasks could be missed.
- Preserve the task state in cpu_chill()
- Add two more cases to consider before warning about pending
softirqs.
(From OE-Core rev: 3efbde7738efd3b69f86d4cb4b08e4e11190f75d)
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
44 lines
1.7 KiB
BlitzBasic
44 lines
1.7 KiB
BlitzBasic
KBRANCH ?= "v4.19/standard/preempt-rt/base"
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require recipes-kernel/linux/linux-yocto.inc
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# Skip processing of this recipe if it is not explicitly specified as the
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# PREFERRED_PROVIDER for virtual/kernel. This avoids errors when trying
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# to build multiple virtual/kernel providers, e.g. as dependency of
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# core-image-rt-sdk, core-image-rt.
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python () {
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if d.getVar("KERNEL_PACKAGE_NAME") == "kernel" and d.getVar("PREFERRED_PROVIDER_virtual/kernel") != "linux-yocto-rt":
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raise bb.parse.SkipRecipe("Set PREFERRED_PROVIDER_virtual/kernel to linux-yocto-rt to enable it")
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}
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SRCREV_machine ?= "2c6e44e476bd297d65d5cb1b5f5538d303fc05a0"
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SRCREV_meta ?= "d85f07e03c980eca5ffd5ba058985d6ed3a83801"
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SRC_URI = "git://git.yoctoproject.org/linux-yocto.git;branch=${KBRANCH};name=machine \
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git://git.yoctoproject.org/yocto-kernel-cache;type=kmeta;name=meta;branch=yocto-4.19;destsuffix=${KMETA}"
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LINUX_VERSION ?= "4.19.30"
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LIC_FILES_CHKSUM = "file://COPYING;md5=bbea815ee2795b2f4230826c0c6b8814"
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DEPENDS += "${@bb.utils.contains('ARCH', 'x86', 'elfutils-native', '', d)}"
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DEPENDS += "openssl-native util-linux-native"
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PV = "${LINUX_VERSION}+git${SRCPV}"
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KMETA = "kernel-meta"
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KCONF_BSP_AUDIT_LEVEL = "2"
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LINUX_KERNEL_TYPE = "preempt-rt"
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COMPATIBLE_MACHINE = "(qemux86|qemux86-64|qemuarm|qemuarmv5|qemuarm64|qemuppc|qemumips)"
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KERNEL_DEVICETREE_qemuarm = "versatile-pb.dtb"
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# Functionality flags
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KERNEL_EXTRA_FEATURES ?= "features/netfilter/netfilter.scc features/taskstats/taskstats.scc"
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KERNEL_FEATURES_append = " ${KERNEL_EXTRA_FEATURES}"
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KERNEL_FEATURES_append_qemuall=" cfg/virtio.scc"
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KERNEL_FEATURES_append_qemux86=" cfg/sound.scc cfg/paravirt_kvm.scc"
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KERNEL_FEATURES_append_qemux86-64=" cfg/sound.scc cfg/paravirt_kvm.scc"
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