diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/gen83xx/irq/ipic.c')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/gen83xx/irq/ipic.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/powerpc/gen83xx/irq/ipic.c b/c/src/lib/libbsp/powerpc/gen83xx/irq/ipic.c index ca782d4f9d..77b179cbd5 100644 --- a/c/src/lib/libbsp/powerpc/gen83xx/irq/ipic.c +++ b/c/src/lib/libbsp/powerpc/gen83xx/irq/ipic.c @@ -272,6 +272,13 @@ rtems_status_code BSP_irq_handle_at_ipic(uint32_t excNum) mpc83xx.ipic.simsr[1] &= mask_ptr->simsr_mask[1]; mpc83xx.ipic.semsr &= mask_ptr->semsr_mask ; mpc83xx.ipic.sermr &= mask_ptr->sermr_mask ; + + /* + * make sure, that the masking operations in + * ICTL and MSR are executed in order + */ + asm volatile("sync":::"memory"); + /* * reenable msr_ee */ @@ -293,6 +300,13 @@ rtems_status_code BSP_irq_handle_at_ipic(uint32_t excNum) * disable msr_enable */ _CPU_MSR_SET(msr_save); + + /* + * make sure, that the masking operations in + * ICTL and MSR are executed in order + */ + asm volatile("sync":::"memory"); + /* * restore initial masks */ |