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score: Remove _SMP_Before_multitasking_action()

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Use _SMP_Multicast_action() instead.
This commit is contained in:
Sebastian Huber
2019-04-12 07:55:31 +02:00
parent f410b31be4
commit ad40d05eba
6 changed files with 14 additions and 164 deletions
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15
bsps/arm/shared/clock/clock-a9mpcore.c
View File

@@ -102,11 +102,13 @@ typedef struct {
static void a9mpcore_clock_secondary_action(void *arg)
{
volatile a9mpcore_gt *gt = A9MPCORE_GT;
a9mpcore_clock_init_data *init_data = arg;
if (!_Per_CPU_Is_boot_processor(_Per_CPU_Get())) {
volatile a9mpcore_gt *gt = A9MPCORE_GT;
a9mpcore_clock_init_data *init_data = arg;
a9mpcore_clock_gt_init(gt, init_data->cmpval, init_data->interval);
bsp_interrupt_vector_enable(A9MPCORE_IRQ_GT);
a9mpcore_clock_gt_init(gt, init_data->cmpval, init_data->interval);
bsp_interrupt_vector_enable(A9MPCORE_IRQ_GT);
}
}
#endif
@@ -122,10 +124,7 @@ static void a9mpcore_clock_secondary_initialization(
.interval = interval
};
_SMP_Before_multitasking_action_broadcast(
a9mpcore_clock_secondary_action,
&init_data
);
_SMP_Multicast_action(NULL, a9mpcore_clock_secondary_action, &init_data);
if (cmpval - a9mpcore_clock_get_counter(gt) >= interval) {
bsp_fatal(BSP_ARM_A9MPCORE_FATAL_CLOCK_SMP_INIT);

15
bsps/arm/shared/clock/clock-generic-timer.c
View File

@@ -122,21 +122,20 @@ static void arm_gt_clock_gt_init(uint64_t cval)
#if defined(RTEMS_SMP) && !defined(CLOCK_DRIVER_USE_ONLY_BOOT_PROCESSOR)
static void arm_gt_clock_secondary_action(void *arg)
{
uint64_t *cval;
if (!_Per_CPU_Is_boot_processor(_Per_CPU_Get())) {
uint64_t *cval;
cval = arg;
arm_gt_clock_gt_init(*cval);
bsp_interrupt_vector_enable(arm_gt_clock_instance.irq);
cval = arg;
arm_gt_clock_gt_init(*cval);
bsp_interrupt_vector_enable(arm_gt_clock_instance.irq);
}
}
#endif
static void arm_gt_clock_secondary_initialization(uint64_t cval)
{
#if defined(RTEMS_SMP) && !defined(CLOCK_DRIVER_USE_ONLY_BOOT_PROCESSOR)
_SMP_Before_multitasking_action_broadcast(
arm_gt_clock_secondary_action,
&cval
);
_SMP_Multicast_action(NULL, arm_gt_clock_secondary_action, &cval);
#endif
}

8
cpukit/include/rtems/score/percpu.h
View File

@@ -488,14 +488,6 @@ typedef struct Per_CPU_Control {
*/
Per_CPU_State state;
/**
* @brief Action to be executed by this processor in the
* SYSTEM_STATE_BEFORE_MULTITASKING state on behalf of the boot processor.
*
* @see _SMP_Before_multitasking_action().
*/
Atomic_Uintptr before_multitasking_action;
/**
* @brief FIFO list of jobs to be performed by this processor.
*

44
cpukit/include/rtems/score/smpimpl.h
View File

@@ -260,50 +260,6 @@ void _SMP_Multicast_action(
void *arg
);
/**
* @brief Executes a handler with argument on the specified processor on behalf
* of the boot processor.
*
* The calling processor must be the boot processor. In case the specified
* processor is not online or not in the
* PER_CPU_STATE_READY_TO_START_MULTITASKING state, then no action is
* performed.
*
* @param cpu The processor to execute the action.
* @param handler The handler of the action.
* @param arg The argument of the action.
*
* @retval true The handler executed on the specified processor.
* @retval false Otherwise.
*
* @see _SMP_Before_multitasking_action_broadcast().
*/
bool _SMP_Before_multitasking_action(
Per_CPU_Control *cpu,
SMP_Action_handler handler,
void *arg
);
/**
* @brief Executes a handler with argument on all online processors except the
* boot processor on behalf of the boot processor.
*
* The calling processor must be the boot processor.
*
* @param handler The handler of the action.
* @param arg The argument of the action.
*
* @retval true The handler executed on all online processors except the boot
* processor.
* @retval false Otherwise.
*
* @see _SMP_Before_multitasking_action().
*/
bool _SMP_Before_multitasking_action_broadcast(
SMP_Action_handler handler,
void *arg
);
#endif /* defined( RTEMS_SMP ) */
/**

70
cpukit/score/src/percpu.c
View File

@@ -36,11 +36,6 @@ RTEMS_STATIC_ASSERT(
#if defined(RTEMS_SMP)
typedef struct {
SMP_Action_handler handler;
void *arg;
} SMP_Before_multicast_action;
ISR_LOCK_DEFINE( static, _Per_CPU_State_lock, "Per-CPU State" )
static void _Per_CPU_State_acquire( ISR_lock_Context *lock_context )
@@ -53,29 +48,6 @@ static void _Per_CPU_State_release( ISR_lock_Context *lock_context )
_ISR_lock_Release_and_ISR_enable( &_Per_CPU_State_lock, lock_context );
}
static void _Per_CPU_State_before_multitasking_action( Per_CPU_Control *cpu )
{
uintptr_t action_value;
action_value = _Atomic_Load_uintptr(
&cpu->before_multitasking_action,
ATOMIC_ORDER_ACQUIRE
);
if ( action_value != 0 ) {
SMP_Before_multicast_action *action =
(SMP_Before_multicast_action *) action_value;
( *action->handler )( action->arg );
_Atomic_Store_uintptr(
&cpu->before_multitasking_action,
0,
ATOMIC_ORDER_RELEASE
);
}
}
static void _Per_CPU_State_busy_wait(
Per_CPU_Control *cpu,
Per_CPU_State new_state
@@ -99,7 +71,6 @@ static void _Per_CPU_State_busy_wait(
state != PER_CPU_STATE_REQUEST_START_MULTITASKING
&& state != PER_CPU_STATE_SHUTDOWN
) {
_Per_CPU_State_before_multitasking_action( cpu );
_Per_CPU_Perform_jobs( cpu );
_CPU_SMP_Processor_event_receive();
state = cpu->state;
@@ -206,47 +177,6 @@ void _Per_CPU_State_change(
_SMP_Fatal( SMP_FATAL_SHUTDOWN );
}
}
bool _SMP_Before_multitasking_action(
Per_CPU_Control *cpu,
SMP_Action_handler handler,
void *arg
)
{
bool done;
_Assert( _Per_CPU_Is_boot_processor( _Per_CPU_Get() ) );
if ( _Per_CPU_Is_processor_online( cpu ) ) {
SMP_Before_multicast_action action = {
.handler = handler,
.arg = arg
};
Per_CPU_State expected_state = PER_CPU_STATE_READY_TO_START_MULTITASKING;
_Atomic_Store_uintptr(
&cpu->before_multitasking_action,
(uintptr_t) &action,
ATOMIC_ORDER_RELEASE
);
_CPU_SMP_Processor_event_broadcast();
_Per_CPU_State_busy_wait( cpu, expected_state );
do {
done = _Atomic_Load_uintptr(
&cpu->before_multitasking_action,
ATOMIC_ORDER_ACQUIRE
) == 0;
} while ( !done && cpu->state == expected_state );
} else {
done = false;
}
return done;
}
#else
/*
* On single core systems, we can efficiently directly access a single

26
cpukit/score/src/smp.c
View File

@@ -253,30 +253,4 @@ void _SMP_Send_message_multicast(
}
}
bool _SMP_Before_multitasking_action_broadcast(
SMP_Action_handler handler,
void *arg
)
{
bool done;
uint32_t cpu_max;
uint32_t cpu_index;
done = true;
cpu_max = _SMP_Get_processor_maximum();
for ( cpu_index = 0 ; done && cpu_index < cpu_max ; ++cpu_index ) {
Per_CPU_Control *cpu = _Per_CPU_Get_by_index( cpu_index );
if (
!_Per_CPU_Is_boot_processor( cpu )
&& _Per_CPU_Is_processor_online( cpu )
) {
done = _SMP_Before_multitasking_action( cpu, handler, arg );
}
}
return done;
}
SMP_Test_message_handler _SMP_Test_message_handler;