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