Lines Matching refs:L1
169 ; if L2 IRQ interrupted a L1 ISR, disable preemption
171 ; This is to avoid a potential L1-L2-L1 scenario
172 ; -L1 IRQ taken
173 ; -L2 interrupts L1 (before L1 ISR could run)
177 ; But both L1 and L2 re-enabled, so another L1 can be taken
178 ; while prev L1 is still unserviced
182 ; L2 interrupting L1 implies both L2 and L1 active
184 ; need to check STATUS32_L2 to determine if L1 was active
187 bbit0 r9, STATUS_A1_BIT, 1f ; L1 not active when L2 IRQ, so normal
349 ; use the same priorty as rtie: EXCPN, L2 IRQ, L1 IRQ, None
372 ; if L2 IRQ interrupted an L1 ISR, we'd disabled preemption earlier
373 ; so that sched doesn't move to new task, causing L1 to be delayed
379 bbit0 r9, STATUS_A1_BIT, 149f ; L1 not active when L2 IRQ, so normal