Nios® V Processor Software Developer Handbook

ID 743810
Date 10/31/2022
Public

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Document Table of Contents

12.1.1.3. alt_dcache_flush()

Prototype

void alt_dcache_flush (void* start, alt_u32 len)

Commonly Called By

C/C++ programs

Device drivers

Thread-safe

Yes.

Available from ISR

Yes.

Include

<sys/alt_cache.h>

Description

The alt_dcache_flush() function flushes the data cache for a memory region of length len bytes, starting at address start. Flushing the cache consists of writing back dirty data and then invalidating the cache.

In processors without data caches, it has no effect.

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