30 lines
1.1 KiB
Plaintext
30 lines
1.1 KiB
Plaintext
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* RPM Master Stats
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RPM maintains each master data in RPM message RAM at a specific
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offset. It tells about the individual masters information at
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any given time like "number of active cores in sub system",
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"number of shutdowns" and "wakeup reason for SS" etc. These stats
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can be show to the user using the debugfs interface of the kernel.
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To achieve this device tree node has been added and it will hold
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the address of the RPM RAM from where master stats are read.
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Added version number to distinguish the type of data structure
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being read from the RAM for different targets.
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The required properties for rpm-master-stats are:
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- compatible: "qcom,rpm-master-stats".
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- reg: The address on the RPM RAM from where stats are read.
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- qcom,masters: Each master name.
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- qcom,master-offset: Offset required to access each master stats area.
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- qcom,master-stats-version: Version number.
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Example:
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qcom,rpm-stats@fc428150 {
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compatible = "qcom,rpm-stats";
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reg = <0xfc428150 0x1000>;
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qcom,masters = "APSS", "MPSS", "LPSS", "PRONTO";
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qcom,master-offset = <2560>;
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qcom,master-stats-version = <2>;
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};
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