When compiling for _STANDALONE, omit a bunch of headers which aren't really
needed and which trigger build problems.

(These two files should probably be unified and put under common/...)

__asm__ -> __asm

Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

export size_t __getcachelinesize(void) for memset()

Need <stdlib.h> for abort() prototype.

Add sync before isync since the MPC74xx require it.

Use size_t in prototype (so this will be LP64 clean for PPC64 someday).
Calculate len separately for icache & dcache in case each has different
cacheline widths. Make the code for both loops the sam

Use size_t in prototype (so this will be LP64 clean for PPC64 someday).
Calculate len separately for icache & dcache in case each has different
cacheline widths. Make the code for both loops the same except for the
dcbst/icbi. Deal with sizes >=2GB properly (like that'll happen but ...)

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make compile with _STANDALONE

Remove leftover debug code. Oops.

Use new CPU_CACHEINFO sysctl to get more detailed information about
cache layout.

Ansi'fy. (to make this compile under -Wstrict-prototypes)

delint (variable is only used for size, so make if size_t instead of int).

sync with libkern version; <vm/vm.h> -> <uvm/uvm_extern.h>

* Add getcachelinesize() prototype.
* Make this compile with -D_STANDALONE.

Modify syncicache on PowerPC from an inline to a real function.
Support different cache line sizes with the same object code in userland.
While here, move the function to implementation name space.