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Minor extensions to some comments

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This commit is contained in:
Gregory Nutt 2016-11-29 10:01:38 -06:00
parent 137586f50a
commit f06d521c10
1 changed files with 10 additions and 3 deletions
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13
arch/arm/src/armv7-a/arm_cpupause.c
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@ -144,13 +144,20 @@ int up_cpu_paused(int cpu)
up_savestate(tcb->xcp.regs);
/* Wait for the spinlock to be released */
/* Release the g_cpu_puased spinlock to synchronize with the
* requesting CPU.
*/
spin_unlock(&g_cpu_paused[cpu]);
/* Wait for the spinlock to be released. The requesting CPU will release
* the spinlcok when the CPU is resumed.
*/
spin_lock(&g_cpu_wait[cpu]);
/* Restore the exception context of the tcb at the (new) head of the
* assigned task list.
/* This CPU has been resumed. Restore the exception context of the TCB at
* the (new) head of the assigned task list.
*/
tcb = this_task();