Re: [PATCH V3 1/2] powerpc: Define new ISA v3.00 logical PVR value and PCR register value

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Suraj Jitindar Singh <sjitindarsingh@xxxxxxxxx> writes:

> ISA 3.00 adds the logical PVR value 0x0f000005, so add a definition for
> this.
>
> Define PCR_ARCH_207 to reflect ISA 2.07 compatibility mode in the processor
> compatibility register (PCR). Also define a dummy ISA 3.00 compatibility
> mode PCR_ARCH_300 to be used in the next patch to help with determining the
> PCR value.

What's "dummy" about the PCR value?

AFAICS that value is reserved in the ISA.

Are we assuming/hoping that ISA 4.0 will use 0x10 to mean ISA 3.0 ?

cheers
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