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/*
*
* (C) COPYRIGHT 2014 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the
* GNU General Public License version 2 as published by the Free Software
* Foundation, and any use by you of this program is subject to the terms
* of such GNU licence.
*
* A copy of the licence is included with the program, and can also be obtained
* from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
/*
* Base kernel disjoint events helper functions
*/
#include <mali_kbase.h>
void kbase_disjoint_init(struct kbase_device *kbdev)
{
KBASE_DEBUG_ASSERT(kbdev != NULL);
atomic_set(&kbdev->disjoint_event.count, 0);
atomic_set(&kbdev->disjoint_event.state, 0);
}
/* increment the disjoint event count */
void kbase_disjoint_event(struct kbase_device *kbdev)
{
KBASE_DEBUG_ASSERT(kbdev != NULL);
atomic_inc(&kbdev->disjoint_event.count);
}
/* increment the state and the event counter */
void kbase_disjoint_state_up(struct kbase_device *kbdev)
{
KBASE_DEBUG_ASSERT(kbdev != NULL);
atomic_inc(&kbdev->disjoint_event.state);
kbase_disjoint_event(kbdev);
}
/* decrement the state */
void kbase_disjoint_state_down(struct kbase_device *kbdev)
{
KBASE_DEBUG_ASSERT(kbdev != NULL);
KBASE_DEBUG_ASSERT(atomic_read(&kbdev->disjoint_event.state) > 0);
kbase_disjoint_event(kbdev);
atomic_dec(&kbdev->disjoint_event.state);
}
/* increments the count only if the state is > 0 */
void kbase_disjoint_event_potential(struct kbase_device *kbdev)
{
KBASE_DEBUG_ASSERT(kbdev != NULL);
if (atomic_read(&kbdev->disjoint_event.state))
kbase_disjoint_event(kbdev);
}
u32 kbase_disjoint_event_get(struct kbase_device *kbdev)
{
KBASE_DEBUG_ASSERT(kbdev != NULL);
return atomic_read(&kbdev->disjoint_event.count);
}
KBASE_EXPORT_TEST_API(kbase_disjoint_event_get);
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