diff options
| -rw-r--r-- | os/nil/ports/e200/compilers/GCC/ivor.s | 18 | ||||
| -rw-r--r-- | os/rt/ports/e200/compilers/GCC/ivor.s | 18 | ||||
| -rw-r--r-- | readme.txt | 2 |
3 files changed, 26 insertions, 12 deletions
diff --git a/os/nil/ports/e200/compilers/GCC/ivor.s b/os/nil/ports/e200/compilers/GCC/ivor.s index 28d54962a..8bd687c0a 100644 --- a/os/nil/ports/e200/compilers/GCC/ivor.s +++ b/os/nil/ports/e200/compilers/GCC/ivor.s @@ -93,10 +93,13 @@ _IVOR10: lis %r3, 0x0800 /* DIS bit mask. */
mtspr 336, %r3 /* TSR register. */
-#if PPC_USE_IRQ_PREEMPTION
- /* Allows preemption while executing the software handler.*/
- wrteei 1
+ /* Restoring pre-IRQ MSR register value.*/
+ mfSRR1 %r0
+#if !PPC_USE_IRQ_PREEMPTION
+ /* No preemption, keeping EE disabled.*/
+ se_bclri %r0, 16 /* EE = bit 16. */
#endif
+ mtMSR %r0
/* System tick handler invocation.*/
bl chSysTimerHandlerI
@@ -161,10 +164,13 @@ _IVOR4: lwz %r3, 0(%r3)
mtCTR %r3 /* Software handler address. */
-#if PPC_USE_IRQ_PREEMPTION
- /* Allows preemption while executing the software handler.*/
- wrteei 1
+ /* Restoring pre-IRQ MSR register value.*/
+ mfSRR1 %r0
+#if !PPC_USE_IRQ_PREEMPTION
+ /* No preemption, keeping EE disabled.*/
+ se_bclri %r0, 16 /* EE = bit 16. */
#endif
+ mtMSR %r0
/* Exectes the software handler.*/
bctrl
diff --git a/os/rt/ports/e200/compilers/GCC/ivor.s b/os/rt/ports/e200/compilers/GCC/ivor.s index acdb6af58..ff43a21df 100644 --- a/os/rt/ports/e200/compilers/GCC/ivor.s +++ b/os/rt/ports/e200/compilers/GCC/ivor.s @@ -98,10 +98,13 @@ _IVOR10: lis %r3, 0x0800 /* DIS bit mask. */
mtspr 336, %r3 /* TSR register. */
-#if PPC_USE_IRQ_PREEMPTION
- /* Allows preemption while executing the software handler.*/
- wrteei 1
+ /* Restoring pre-IRQ MSR register value.*/
+ mfSRR1 %r0
+#if !PPC_USE_IRQ_PREEMPTION
+ /* No preemption, keeping EE disabled.*/
+ se_bclri %r0, 16 /* EE = bit 16. */
#endif
+ mtMSR %r0
#if CH_DBG_SYSTEM_STATE_CHECK
bl _dbg_check_enter_isr
@@ -174,10 +177,13 @@ _IVOR4: lwz %r3, 0(%r3)
mtCTR %r3 /* Software handler address. */
-#if PPC_USE_IRQ_PREEMPTION
- /* Allows preemption while executing the software handler.*/
- wrteei 1
+ /* Restoring pre-IRQ MSR register value.*/
+ mfSRR1 %r0
+#if !PPC_USE_IRQ_PREEMPTION
+ /* No preemption, keeping EE disabled.*/
+ se_bclri %r0, 16 /* EE = bit 16. */
#endif
+ mtMSR %r0
/* Exectes the software handler.*/
bctrl
diff --git a/readme.txt b/readme.txt index 4cd7437cd..3b20a0a1d 100644 --- a/readme.txt +++ b/readme.txt @@ -80,6 +80,8 @@ - NIL: Added INTC priorities check to the e200z port.
- RT: Added INTC priorities check to the e200z port.
- HAL: Added support for extra DMA channels in STM32F072 devices.
+- RT: SPE-related issue in e200z ports (bug #607).
+- NIL: SPE-related issue in e200z ports (bug #607).
- HAL: Fixed dependency between STM32 MAC driver and RT (bug #606).
- HAL: Fixed wrong macro names in STM32F0xx HAL driver (bug #605).
- HAL: Fixed wrong check on ADC3 in STM32F3xx ADC driver (bug #604).
|