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ARM: dts: msm: Add qcom,initial-movable-zone-size property

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"qcom,initial-movable-zone-size" creates a movable zone of the given size
before userspace starts. This is useful in a system where a userspace
component (psi-daemon) is used to hotplug in memory on a on-demand basis.

With swap disabled, the current tvm carveout size (68 Mb) hits
out-of-memory condition before psi-deamon is started.

Once psi-daemon is running, it detects the number of blocks added to the
movable zone via "qti_virtio_mem/kernel_plugged" sysfs file, and
can reduce or increment the number as necessary.

Change-Id: I5b62b6227e8a357ba3012979ed4bf937f1810437
Signed-off-by: Patrick Daly <quic_pdaly@quicinc.com>
This commit is contained in:
Patrick Daly
2024-07-08 22:20:03 -07:00
committed by Bruce Levy
parent 18f2c74330
commit c0fc43c3f7
1 changed files with 1 additions and 0 deletions
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qcom/sun-vm.dtsi
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@@ -719,6 +719,7 @@
qcom,max-size = <0x0 0x10000000>; qcom,max-size = <0x0 0x10000000>;
qcom,ipa-range = <0x0 0x0 0xf 0xffffffff>; qcom,ipa-range = <0x0 0x0 0xf 0xffffffff>;
qcom,block-size = <0x400000>; qcom,block-size = <0x400000>;
qcom,initial-movable-zone-size = <0x2000000>;
}; };
qcom,gunyah-panic-notifier { qcom,gunyah-panic-notifier {