32 lines
876 B
Plaintext
32 lines
876 B
Plaintext
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* ARMv8.2 RAS Driver
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==============================
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RAS are three aspects of the dependability of a system:
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Reliability: continuity of correct service
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Availability: readiness for correct service
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Serviceability: ability to undergo modifications and repairs
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ARMv8.2 provides RAS extensions to achieve the above features in a system.
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arm64_ras driver allows you to handle Correctable errors using
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Fault Handling Interrupt (or FHI).
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The driver provides an API for CPU sepcific RAS drivers to
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register callbacks in case of FHI. When FHI occurs, the FHI
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ISR goes through the list of registered callbacks and executes
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them.
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Required Properties:
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- compatible : Should be "arm,armv8.2-ras"
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- interrupts : Represents the Fault Handling Interrupt
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Example:
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=========
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arm64_ras: arm64_ras {
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compatible = "arm,armv8.2ras";
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interrupts = <0 400 0x04>;
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status = "disabled";
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};
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