src/sys/powerpc/include/param.h, branch releng/8.0

Cleanup ALIGNED_POINTER:

2009-07-05T17:45:48+00:00

o add to platforms where it was missing (arm, i386, powerpc, sparc64, sun4v)
o define as "1" on amd64 and i386 where there is no restriction
o make the type returned consistent with ALIGN
o remove _ALIGNED_POINTER
o make associated comments consistent

Reviewed by:	bde, imp, marcel
Approved by:	re (kensmith)

Don't conditionally define CACHE_LINE_SHIFT, as we anticipate sizing

2009-04-20T12:59:23+00:00

a fair number of static data structures, making this an unlikely
option to try to change without also changing source code. [1]

Change default cache line size on ia64, sparc64, and sun4v to 128
bytes, as this was what rtld-elf was already using on those
platforms. [2]

Suggested by:	bde [1], jhb [2]
MFC after:	2 weeks

Add description and cautionary note regarding CACHE_LINE_SIZE.

2009-04-19T21:26:36+00:00

MFC after:	2 weeks
Suggested by:	alc

For each architecture, define CACHE_LINE_SHIFT and a derived

2009-04-19T20:19:13+00:00

CACHE_LINE_SIZE constant.  These constants are intended to
over-estimate the cache line size, and be used at compile-time
when a run-time tuning alternative isn't appropriate or
available.

Defaults for all architectures are 64 bytes, except powerpc
where it is 128 bytes (used on G5 systems).

MFC after:	2 weeks
Discussed on:   arch@

Adapt parts of the sparc64 Open Firmware bus enumeration code (in particular,

2008-12-15T15:31:10+00:00

the code for parsing interrupt maps) to PowerPC and reflect their new MI
status by moving them to the shared dev/ofw directory.

This commit also modifies the OFW PCI enumeration procedure on PowerPC to
allow the bus to find non-firmware-enumerated devices that Apple likes to add,
and adds some useful Open Firmware properties (compat and name) to the pnpinfo
string of children on OFW SBus, EBus, PCI, and MacIO links. Because of the
change to PCI enumeration on PowerPC, X has started working again on PPC
machines with Grackle hostbridges.

Reviewed by:	marius
Obtained from:	sparc64

When building a kernel module, define MAXCPU the same as SMP so

2008-03-27T05:03:26+00:00

that modules work with and without SMP.

Drop _MACHINE_ARCH and _MACHINE defines (not to be confused with

2005-12-06T13:27:21+00:00

MACHINE_ARCH and MACHINE).  Their purpose was to be able to test
in cpp(1), but cpp(1) only understands integer type expressions.
Using such unsupported expressions introduced a number of subtle
bugs, which were discovered by compiling with -Wundef.

Remove UAREA_PAGES.

2004-11-20T02:29:50+00:00

Reviewed by:	arch@

has no business being here. Finally exposed by F77 build

2004-04-21T22:58:39+00:00

failure.

Cleaned up param.h:

2004-02-11T07:27:34+00:00

 - culled long-dead #define's
 - segment register defs moved to sr.h
 - NPMAPS moved to pmap.h
 - KERNBASE moved to vmparam.h
 - removed include of  and fixed src files that
   relied on this.

Modifying segment register code no longer causes gcc rebuilds :-)