RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

score: _CPU_Context_switch_to_first_task_smp()

Browse Source 
Delete _CPU_Context_switch_to_first_task_smp() and use
_CPU_Context_restore() instead.
This commit is contained in:
Sebastian Huber
2014-02-05 15:41:00 +01:00
parent 1c1c2a04c3
commit 558cc8ddb7
7 changed files with 1 additions and 69 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
c/src/lib/libbsp/sparc/shared/irq_asm.S
View File

@@ -239,34 +239,6 @@ SYM(_CPU_Context_restore):
GET_SELF_CPU_CONTROL %o3, %o4
ba SYM(_CPU_Context_restore_heir)
mov %i0, %o1 ! in the delay slot
.align 4
#if defined(RTEMS_SMP)
/*
* void _CPU_Context_switch_to_first_task_smp(
* Context_Control *new_context
* )
*
* This routine is only used to switch to the first task on a
* secondary core in an SMP configuration. We do not need to
* flush any windows and, in fact, this can be dangerous
* as they may or may not be initialized properly. So we just
* reinitialize the PSR and WIM.
*/
PUBLIC(_CPU_Context_switch_to_first_task_smp)
SYM(_CPU_Context_switch_to_first_task_smp):
mov %psr, %g1 ! Turn of traps when modifying WIM
andn %g1, SPARC_PSR_ET_MASK, %g1
mov %g1, %psr
/* WIM and PSR will be set in done_flushing, it need args:
* g1=PSR, g3=CWP, o1=Context
*/
and %g1, SPARC_NUMBER_OF_REGISTER_WINDOWS - 1, %g3
nop
mov %o0, %o1 ! in the delay slot
GET_SELF_CPU_CONTROL %o3, %o4
ba,a done_flushing
#endif
/*
* void _ISR_Handler()