anchao commented on code in PR #6286:
URL: https://github.com/apache/incubator-nuttx/pull/6286#discussion_r881937210
##########
arch/mips/include/irq.h:
##########
@@ -54,26 +59,67 @@
****************************************************************************/
#ifndef __ASSEMBLY__
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
/****************************************************************************
- * Inline functions
+ * Public Data
****************************************************************************/
+/* g_current_regs holds a references to the current interrupt level
+ * register storage structure. It is non-NULL only during interrupt
+ * processing. Access to g_current_regs must be through the macro
+ * CURRENT_REGS for portability.
+ */
+
+/* For the case of architectures with multiple CPUs, then there must be one
+ * such value for each processor that can receive an interrupt.
+ */
+
+EXTERN volatile uint32_t *g_current_regs[CONFIG_SMP_NCPUS];
+#define CURRENT_REGS (g_current_regs[up_cpu_index()])
+
/****************************************************************************
- * Public Data
+ * Public Function Prototypes
****************************************************************************/
/****************************************************************************
- * Public Function Prototypes
+ * Name: up_cpu_index
+ *
+ * Description:
+ * Return an index in the range of 0 through (CONFIG_SMP_NCPUS-1) that
+ * corresponds to the currently executing CPU.
+ *
+ * Input Parameters:
+ * None
+ *
+ * Returned Value:
+ * An integer index in the range of 0 through (CONFIG_SMP_NCPUS-1) that
+ * corresponds to the currently executing CPU.
+ *
****************************************************************************/
-#ifdef __cplusplus
-#define EXTERN extern "C"
-extern "C"
-{
-#else
-#define EXTERN extern
-#endif
+#define up_cpu_index() (0)
+
+/****************************************************************************
+ * Inline functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_interrupt_context
+ *
+ * Description:
+ * Return true is we are currently executing in the interrupt
+ * handler context.
+ *
+ ****************************************************************************/
+
+#define up_interrupt_context() (CURRENT_REGS != NULL)
Review Comment:
Done
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