[RTEMS Project] #2805: Use SPRG0 on PowerPC for current per-CPU control (SMP only)

[RTEMS trac]

#2805: Use SPRG0 on PowerPC for current per-CPU control (SMP only)
-----------------------------+------------------------------
 Reporter:  sebastian.huber  |       Owner:  sebastian.huber
     Type:  enhancement      |      Status:  new
 Priority:  normal           |   Milestone:  4.12
Component:  SMP              |     Version:  4.12
 Severity:  normal           |  Resolution:
 Keywords:                   |
-----------------------------+------------------------------

Comment (by Sebastian Huber <sebastian.huber@…>):

 In [changeset:"38a1449fd47be848cc40593abd40262e9ad2030d/rtems"]:
 {{{
 #!CommitTicketReference repository="rtems"
 revision="38a1449fd47be848cc40593abd40262e9ad2030d"
 powerpc: Add _CPU_Get_current_per_CPU_control()

 Add _CPU_Get_current_per_CPU_control() on SMP configurations.  Use SPRG0
 for the current per-CPU control.  This reduces the code size by three
 instructions and is slightly faster.

 Update #2805.
 }}}

--
Ticket URL: <http://devel.rtems.org/ticket/2805#comment:1>
RTEMS Project <http://www.rtems.org/>
RTEMS Project