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NV20/NV30 is partially educated guesswork at this point, based on any information around about available memory types and a horribly unspeakable amount of vbios image scouring. I'm not entirely certain the GDDR3 define is correct, I have not spotted a single vbios with that value yet (though it is mentioned in some 1218-using nv4x vbios), but there are reports that some nv3x did use it.. NV40(100914) confirmed by switching an NV49 to DDR1/DDR2 values and making sure that the binary driver behaviour showed it had detected DDR1/DDR2 instead of GDDR3 before dying horribly. NV40(100474) confirmed by doing much the same task as above on an NV44, except this was *much* easier as changing the values didn't seem to have any noticable effect on the memory controller aside from changing the binary driver's behaviour. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> |
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