Update arch/arm/src/common/arm_interruptcontext.c

Add a comment discussing the limitation of this solution for the case of the ARMv7-A with the GIC
2026-06-07 01:05:54 +08:00 · 2020-09-30 08:03:52 -06:00
parent 68f102055a
commit 9142deeb10
1 changed files with 6 additions and 0 deletions
@@ -60,6 +60,12 @@
 bool up_interrupt_context(void)
 {
 #ifdef CONFIG_SMP
+  /* REVISIT:  Currently up_irq_save() will not disable the Software
+   * Generated Interrupts (SGIs) for the case of ARMv7-A architecture using
+   * the GIC.  So this will not be sufficient in that case, at least not
+   * until we add support for the ICCMPR.
+   */
+
  irqstate_t flags = up_irq_save();
 #endif