Pergunta de entrevista da empresa NVIDIA

How do you keep hardware registers from being cached?

Respostas da entrevista

Sigiloso

5 de mai. de 2017

Use the volatile keyword when memory mapping the hardware register to a variable. This way software always 'sees' the unchached value of the register.

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Sigiloso

12 de set. de 2014

There is a map register that excludes some memory regions.

1