Memory segments

In the macros PHYSADDR, KSEG0ADDR, KSEG1ADDR, KSEG2ADDR and KSEG3ADDR in include/asm-mips64/addrspace.h the addresses are and'ed with 0x000000ffffffffffUL, instead of and'ed with 0x000000001fffffffUL why is that ?
I do understand the address space is extended in 64 bit mode, but the macros is used to manipulate KSEG0 and KSEG1 addresses, which is located between 0xffffffff80000000-0xffffffffbfffffff. So the macros are broken if you change an address from KSEG1 to KSEG0.

/Carsten

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