CONFIG_RISCV_ISA_SSQOSID: Ssqosid extension support for supervisor mode Quality of Service ID

General informations

The Linux kernel configuration item CONFIG_RISCV_ISA_SSQOSID:

• prompt: Ssqosid extension support for supervisor mode Quality of Service ID
• type: bool
• depends on: CONFIG_64BIT
• defined in arch/riscv/Kconfig
• found in Linux kernels: 7.3-rc+HEAD

Help text

Adds support for the Ssqosid ISA extension (Supervisor-mode Quality of Service ID).

Ssqosid defines the srmcfg CSR which allows the system to tag the running process with an RCID (Resource Control ID) and MCID (Monitoring Counter ID). The RCID is used to determine resource allocation. The MCID is used to track resource usage in event counters.

For example, a cache controller may use the RCID to apply a cache partitioning scheme and use the MCID to track how much cache a process, or a group of processes, is using.

Hardware

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Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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