Zhao Ke 赵 可 <ke.zhao@xxxxxxxxxxxx> writes: > On 2023/11/22 9:46, Michael Ellerman wrote: >> Zhao Ke <ke.zhao@xxxxxxxxxxxx> writes: >>> HeXin Tech Co. has applied for a new PVN from the OpenPower Community >>> for its new processor C2000. The OpenPower has assigned a new PVN >>> and this newly assigned PVN is 0x0066, add pvr register related >>> support for this PVN. >>> >>> Signed-off-by: Zhao Ke <ke.zhao@xxxxxxxxxxxx> >>> Link: https://discuss.openpower.foundation/t/how-to-get-a-new-pvr-for-processors-follow-power-isa/477/10 >> >> Hi Zhao Ke, >> >> Thanks for the patch. Just a few questions. >> >> Are you able to provide any further detail on the processor? >> >> Your cputable entry claims that it's identical to the original Power8 >> core, can you comment at all on how true that is in practice? > > Basically, we made lots of design change for the new processor. > > For example: > > 1. redesign the interconnect of the fabric, from crossbar to mesh > > 2. redesign the memory subsystem, including the modification of L2 > and L3 architecture > > 3. redesign the SMP bus > > 4. upgrade PCIe to gen5 and increase the number of lanes > > 5. upgrade ddr to DDR5, dimm direct connected, and the number of > channels > > 6. redesign the pervasive architecture, including debug/trace, > clock&power management, etc. OK thanks for the detail. Given all those changes I think you should not use "Power8" as the CPU name. Whatever the lineage of the core design is, it's no longer a literal "Power8", not even the same design using a different process node. So I think you should call it "HeXin C2000" or similar. cheers
