80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
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/*
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*
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* (C) COPYRIGHT 2014-2023 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 license.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you can access it online at
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* http://www.gnu.org/licenses/gpl-2.0.html.
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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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/* disjoiont_event is already zero-initialized by kzalloc. */
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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 (u32)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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