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The Distributor is the main communication point between all GIC-600 blocks. It performs SPI management and LPI caching, and all communications with other blocks and chips.

The following figure shows the Distributor and its interfaces.

Figure 2-1 GIC-600 Distributor

The Distributor is the main hub of the GIC and it implements most of the GICv3 architecture including:

  • Programming, forwarding, and prioritization of SPIs, see SPIs.
  • Caching and forwarding of LPIs, see LPIs.
  • SGI routing and forwarding.
  • Register programming of all registers apart from GITS_TRANSLATER.
  • Power control of cores and Redistributor blocks.

This section contains the following subsections:

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