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Data cache disabled behavior

If the data cache is disabled, loads and store instructions do not access any of the L2 or L1 Data cache arrays. An exception to this rule is the CP15 data cache operations. If the data cache is disabled, the data cache maintenance operations can still execute normally.

If the data cache is disabled, all loads and store instructions to cacheable memory are treated as if they were non-cacheable. This means that they are not coherent with the caches in this core or the caches in other cores, and software must take account of this.

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