diff options
Diffstat (limited to 'c/src/lib/libcpu/powerpc/new-exceptions/bspsupport/ppc_exc_async_normal.S')
| -rw-r--r-- | c/src/lib/libcpu/powerpc/new-exceptions/bspsupport/ppc_exc_async_normal.S | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/c/src/lib/libcpu/powerpc/new-exceptions/bspsupport/ppc_exc_async_normal.S b/c/src/lib/libcpu/powerpc/new-exceptions/bspsupport/ppc_exc_async_normal.S index f123166b0d..399c227ad3 100644 --- a/c/src/lib/libcpu/powerpc/new-exceptions/bspsupport/ppc_exc_async_normal.S +++ b/c/src/lib/libcpu/powerpc/new-exceptions/bspsupport/ppc_exc_async_normal.S @@ -152,6 +152,7 @@ ppc_exc_wrap_async_normal: evstdd SCRATCH_1_REGISTER, PPC_EXC_ACC_OFFSET(r1) #endif +#ifndef RTEMS_SMP /* Increment ISR nest level and thread dispatch disable level */ cmpwi ISR_NEST_REGISTER, 0 addi ISR_NEST_REGISTER, ISR_NEST_REGISTER, 1 @@ -196,6 +197,28 @@ ppc_exc_wrap_async_normal: subic. DISPATCH_LEVEL_REGISTER, DISPATCH_LEVEL_REGISTER, 1 stw ISR_NEST_REGISTER, ISR_NEST_LEVEL@l(ISR_NEST_HADDR_REGISTER) stw DISPATCH_LEVEL_REGISTER, _Thread_Dispatch_disable_level@sdarel(r13) +#else /* RTEMS_SMP */ + /* ISR Enter */ + bl _ISR_SMP_Enter + cmpwi r3, 0 + + /* Switch stack if necessary */ + mfspr SCRATCH_0_REGISTER, SPRG1 + iselgt r1, r1, SCRATCH_0_REGISTER + + bl bsp_interrupt_dispatch + + /* + * Switch back to original stack (FRAME_REGISTER == r1 if we are still + * on the IRQ stack) and restore FRAME_REGISTER. + */ + mr r1, FRAME_REGISTER + lwz FRAME_REGISTER, FRAME_OFFSET(r1) + + /* ISR Leave */ + bl _ISR_SMP_Exit + cmpwi r3, 1 +#endif /* RTEMS_SMP */ /* Call thread dispatcher if necessary */ bne thread_dispatching_done |