/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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*
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* (C) COPYRIGHT 2019-2021 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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#include <mali_kbase.h>
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#ifndef _KBASE_CSF_HEAP_CONTEXT_ALLOC_H_
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#define _KBASE_CSF_HEAP_CONTEXT_ALLOC_H_
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/**
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* kbase_csf_heap_context_allocator_init - Initialize an allocator for heap
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* contexts
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* @ctx_alloc: Pointer to the heap context allocator to initialize.
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* @kctx: Pointer to the kbase context.
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*
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* Return: 0 if successful or a negative error code on failure.
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*/
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int kbase_csf_heap_context_allocator_init(
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struct kbase_csf_heap_context_allocator *const ctx_alloc,
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struct kbase_context *const kctx);
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/**
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* kbase_csf_heap_context_allocator_term - Terminate an allocator for heap
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* contexts
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* @ctx_alloc: Pointer to the heap context allocator to terminate.
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*/
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void kbase_csf_heap_context_allocator_term(
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struct kbase_csf_heap_context_allocator *const ctx_alloc);
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/**
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* kbase_csf_heap_context_allocator_alloc - Allocate a heap context structure
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*
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* @ctx_alloc: Pointer to the heap context allocator.
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*
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* If this function is successful then it returns the address of a
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* zero-initialized heap context structure for use by the firmware.
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*
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* Return: GPU virtual address of the allocated heap context or 0 on failure.
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*/
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u64 kbase_csf_heap_context_allocator_alloc(
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struct kbase_csf_heap_context_allocator *const ctx_alloc);
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/**
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* kbase_csf_heap_context_allocator_free - Free a heap context structure
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*
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* @ctx_alloc: Pointer to the heap context allocator.
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* @heap_gpu_va: The GPU virtual address of a heap context structure that
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* was allocated for the firmware.
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*
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* This function returns a heap context structure to the free pool of unused
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* contexts for possible reuse by a future call to
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* @kbase_csf_heap_context_allocator_alloc.
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*/
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void kbase_csf_heap_context_allocator_free(
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struct kbase_csf_heap_context_allocator *const ctx_alloc,
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u64 const heap_gpu_va);
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#endif /* _KBASE_CSF_HEAP_CONTEXT_ALLOC_H_ */
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