< snip> > I guess the semantics of a framebuffer are not strictly defined, but > the current reality is that it is expected to have memory semantics > (by Linux/glibc) > > Matt is saying fundamental properties of the underlying interconnects > (AMBA) make that impossible on ARM, but I'd like to understand better > if that is universally the case, and whether such a system is still > PCIe compliant.
I don't know that side of the architecture enough to make any definitive statements. > > The discussion about whether memcpy() should rely on unaligned > accesses, and whether you should use it on device memory is orthogonal > to that, and not the heart of the matter IMO Then maybe take libc-alpha off if it isn't relevant. regards Ramana
