/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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*
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* (C) COPYRIGHT 2020-2021 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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#ifndef _KBASE_TRACE_GPU_MEM_H_
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#define _KBASE_TRACE_GPU_MEM_H_
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#if IS_ENABLED(CONFIG_TRACE_GPU_MEM)
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#include <trace/events/gpu_mem.h>
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#endif
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#define DEVICE_TGID ((u32) 0U)
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static void kbase_trace_gpu_mem_usage(struct kbase_device *kbdev,
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struct kbase_context *kctx)
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{
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#if IS_ENABLED(CONFIG_TRACE_GPU_MEM)
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lockdep_assert_held(&kbdev->gpu_mem_usage_lock);
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trace_gpu_mem_total(kbdev->id, DEVICE_TGID,
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kbdev->total_gpu_pages << PAGE_SHIFT);
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if (likely(kctx))
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trace_gpu_mem_total(kbdev->id, kctx->kprcs->tgid,
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kctx->kprcs->total_gpu_pages << PAGE_SHIFT);
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#endif
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}
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static inline void kbase_trace_gpu_mem_usage_dec(struct kbase_device *kbdev,
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struct kbase_context *kctx, size_t pages)
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{
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spin_lock(&kbdev->gpu_mem_usage_lock);
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if (likely(kctx))
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kctx->kprcs->total_gpu_pages -= pages;
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kbdev->total_gpu_pages -= pages;
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kbase_trace_gpu_mem_usage(kbdev, kctx);
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spin_unlock(&kbdev->gpu_mem_usage_lock);
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}
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static inline void kbase_trace_gpu_mem_usage_inc(struct kbase_device *kbdev,
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struct kbase_context *kctx, size_t pages)
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{
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spin_lock(&kbdev->gpu_mem_usage_lock);
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if (likely(kctx))
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kctx->kprcs->total_gpu_pages += pages;
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kbdev->total_gpu_pages += pages;
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kbase_trace_gpu_mem_usage(kbdev, kctx);
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spin_unlock(&kbdev->gpu_mem_usage_lock);
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}
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/**
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* kbase_remove_dma_buf_usage - Remove a dma-buf entry captured.
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*
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* @kctx: Pointer to the kbase context
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* @alloc: Pointer to the alloc to unmap
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*
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* Remove reference to dma buf been unmapped from kbase_device level
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* rb_tree and Kbase_process level dma buf rb_tree.
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*/
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void kbase_remove_dma_buf_usage(struct kbase_context *kctx,
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struct kbase_mem_phy_alloc *alloc);
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/**
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* kbase_add_dma_buf_usage - Add a dma-buf entry captured.
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*
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* @kctx: Pointer to the kbase context
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* @alloc: Pointer to the alloc to map in
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*
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* Add reference to dma buf been mapped to kbase_device level
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* rb_tree and Kbase_process level dma buf rb_tree.
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*/
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void kbase_add_dma_buf_usage(struct kbase_context *kctx,
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struct kbase_mem_phy_alloc *alloc);
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#endif /* _KBASE_TRACE_GPU_MEM_H_ */
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