diff options
Diffstat (limited to 'cpukit/score/cpu/arm/arm_exc_interrupt.S')
| -rw-r--r-- | cpukit/score/cpu/arm/arm_exc_interrupt.S | 35 |
1 files changed, 33 insertions, 2 deletions
diff --git a/cpukit/score/cpu/arm/arm_exc_interrupt.S b/cpukit/score/cpu/arm/arm_exc_interrupt.S index 708af229f1..8bcd03e8a6 100644 --- a/cpukit/score/cpu/arm/arm_exc_interrupt.S +++ b/cpukit/score/cpu/arm/arm_exc_interrupt.S @@ -90,6 +90,38 @@ _ARMV4_Exception_interrupt: str r0, [r1] #endif +#ifdef RTEMS_SMP + /* ISR enter */ + blx _ISR_SMP_Enter + + /* Remember INT stack pointer */ + mov r1, EXCHANGE_INT_SP + + /* Restore exchange registers from exchange area */ + ldmia r1, EXCHANGE_LIST + + /* Switch stack if necessary and save original stack pointer */ + mov r2, sp + cmp r0, #0 + moveq sp, r1 + stmdb sp!, {r2} + + /* Call BSP dependent interrupt dispatcher */ + blx bsp_interrupt_dispatch + + /* Restore stack pointer */ + ldr sp, [sp] + + /* ISR exit */ + blx _ISR_SMP_Exit + cmp r0, #0 + beq thread_dispatch_done + + /* Thread dispatch */ + blx _Thread_Dispatch + +thread_dispatch_done: +#else /* RTEMS_SMP */ /* Remember INT stack pointer */ mov r1, EXCHANGE_INT_SP @@ -150,8 +182,6 @@ _ARMV4_Exception_interrupt: nop #endif /* __thumb__ */ -do_thread_dispatch: - /* Thread dispatch */ bl _Thread_Dispatch @@ -159,6 +189,7 @@ thread_dispatch_done: /* Switch to ARM instructions if necessary */ SWITCH_FROM_THUMB_TO_ARM +#endif /* RTEMS_SMP */ #ifdef ARM_MULTILIB_VFP_D32 /* Restore VFP context */ |