在TMS320C6678中,有这样对cache的描述:“L1D memory cannot be cached within L1D cache, L1P cache, or L2 cache within the same C66x CorePac.”这段话如何理解?
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在TMS320C6678中,有这样对cache的描述:“L1D memory cannot be cached within L1D cache, L1P cache, or L2 cache within the same C66x CorePac.”这段话如何理解?
L1D可以配置成cache和memory的模式,当其配置成memory时,你可以通过地址访问它,但是它不会被当前核的任何一级cache缓存,当前核可以直接访问L1D内存。但是当其他核访问该核L1D memory时,则视其为外存,可以被L1D,L2 cache 缓存。