Invalidating cache line
A request to invalidate a cache line that is caching a particular memory block is sent from a first node.The request is a request to invalidate a cache line in another nodes without...Except that using void Xil_DCache Invalidate Range(unsigned int adr, unsigned len) invalidates a cache line but not necessarily where the packet information starts.
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This leads to varying parts of my packet information being "chopped off". A solution to this, as stated in the Xilinxs documentation seems to be to cache align the... I don't know if it is my attempt that doesn't work, or if it simply doesn't fix the problem.
A method of invalidating cache a line in a system having a plurality of nodes that include a processor and a cache memory.
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Please upgrade to a supported browser: Chrome, Firefox, Internet Explorer 11, Safari. According to ARM references, an invalidate should be done before a memory range affected by an incoming DMA transfer is accessed. topic=/doc.dai0228a/Is it recommended to do an invalidate before/after initiating a DMA transfer?In a further embodiment, new data is written to a cache line in the first node that is caching the particular memory block without writing old data that was stored in that cache line back to a memory. A method of invalidating a cache line in a system having a plurality of nodes that include a processor and a cache memory, the method comprising sending from a first node a request to invalidate a cache line that is caching a particular memory block, wherein said request is a request to invalidate the cache line in another node without returning to the first node data stored in the cache line to be invalidated.