68 static uint32_t kcpc_intrctx_count;    /* # overflows in an interrupt handler */
98  * cross-call or from high-PIL interrupt
913  * Generic interrupt handler used on hardware that generates
916  * Note: executed at high-level interrupt context!
928 	 * interrupt in kernel mode, just after we've started to run an  in kcpc_overflow_intr()
929 	 * interrupt thread.  (That's because the hardware helpfully  in kcpc_overflow_intr()
930 	 * delivers the overflow interrupt some random number of cycles  in kcpc_overflow_intr()
936 	 * that was running when the interrupt went off.  in kcpc_overflow_intr()
959 		 * "shared" mode, for example, and an overflow interrupt  in kcpc_overflow_intr()
970 			 * the interrupt handler so that it can synchronously  in kcpc_overflow_intr()
977 		 * As long as the overflow interrupt really is delivered early  in kcpc_overflow_intr()
981 		 * running a passivated interrupt thread, a kernel  in kcpc_overflow_intr()
995 		 * interrupt the overflow handler before the handler has  in kcpc_overflow_intr()
1031 				 * so freeze the context. The interrupt handler  in kcpc_overflow_intr()
1052  * The current thread context had an overflow interrupt; we're
1053  * executing here in high-level interrupt context.
1078 		 * processing an interrupt if it is currently free. Drop the  in kcpc_hw_overflow_intr()
1079 		 * interrupt if the state isn't free (i.e. a configuration  in kcpc_hw_overflow_intr()
1115 			 * We've finished processing the interrupt so set  in kcpc_hw_overflow_intr()
1128 	 * If the interrupt has occurred in the context of an lwp owning  in kcpc_hw_overflow_intr()
1161  * interrupt handler.
1171 	ASSERT(ctx != NULL);	/* Beware of interrupt skid. */  in kcpc_overflow_ast()
1186 	 * The interrupt handler has marked any pics with KCPC_PIC_OVERFLOWED  in kcpc_overflow_ast()
1484 		 * here so the system isn't surprised by an overflow interrupt  in kcpc_free()