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freebsd/sys/powerpc
John Baldwin 798a45964d - Split cpu_mp_probe() into two parts. cpu_mp_setmaxid() is still called
very early (SI_SUB_TUNABLES - 1) and is responsible for setting mp_maxid.
  cpu_mp_probe() is now called at SI_SUB_CPU and determines if SMP is
  actually present and sets mp_ncpus and all_cpus.  Splitting these up
  allows an architecture to probe CPUs later than SI_SUB_TUNABLES by just
  setting mp_maxid to MAXCPU in cpu_mp_setmaxid().  This could allow the
  CPU probing code to live in a module, for example, since modules
  sysinit's in modules cannot be invoked prior to SI_SUB_KLD.  This is
  needed to re-enable the ACPI module on i386.
- For the alpha SMP probing code, use LOCATE_PCS() instead of duplicating
  its contents in a few places.  Also, add a smp_cpu_enabled() function
  to avoid duplicating some code.  There is room for further code
  reduction later since much of this code is also present in cpu_mp_start().
- All archs besides i386 still set mp_maxid to the same values they set it
  to before this change.  i386 now sets mp_maxid to MAXCPU.

Tested on:	alpha, amd64, i386, ia64, sparc64
Approved by:	re (scottl)
2003-11-21 22:23:26 +00:00
..
aim - Remove unnecessary synchronization from sf_buf_init(). (There is only 2003-11-16 23:40:06 +00:00
compile
conf Note that scbus is required for SCSI, not just "required" in general. 2003-06-08 02:03:02 +00:00
include Widen the enable/disable helper function's argument in line with the 2003-11-17 06:10:15 +00:00
ofw Prefer new location of pci include files (which have only been in the 2003-08-22 07:39:05 +00:00
powermac Widen the enable/disable helper function's argument in line with the 2003-11-17 06:10:15 +00:00
powerpc - Split cpu_mp_probe() into two parts. cpu_mp_setmaxid() is still called 2003-11-21 22:23:26 +00:00
psim ATAng requires <sys/taskqueue.h> 2003-09-22 11:55:02 +00:00