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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
*
* (C) COPYRIGHT 2019-2023 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 license.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you can access it online at
* http://www.gnu.org/licenses/gpl-2.0.html.
*
*/
#include <mali_kbase.h>
#ifndef _KBASE_CSF_HEAP_CONTEXT_ALLOC_H_
#define _KBASE_CSF_HEAP_CONTEXT_ALLOC_H_
/**
* kbase_csf_heap_context_allocator_init - Initialize an allocator for heap
* contexts
* @ctx_alloc: Pointer to the heap context allocator to initialize.
* @kctx: Pointer to the kbase context.
*
* This function must be called only when a kbase context is instantiated.
*
* Return: 0 if successful or a negative error code on failure.
*/
int kbase_csf_heap_context_allocator_init(struct kbase_csf_heap_context_allocator *const ctx_alloc,
struct kbase_context *const kctx);
/**
* kbase_csf_heap_context_allocator_term - Terminate an allocator for heap
* contexts
* @ctx_alloc: Pointer to the heap context allocator to terminate.
*/
void kbase_csf_heap_context_allocator_term(struct kbase_csf_heap_context_allocator *const ctx_alloc);
/**
* kbase_csf_heap_context_allocator_alloc - Allocate a heap context structure
*
* @ctx_alloc: Pointer to the heap context allocator.
*
* If this function is successful then it returns the address of a
* zero-initialized heap context structure for use by the firmware.
*
* Return: GPU virtual address of the allocated heap context or 0 on failure.
*/
u64 kbase_csf_heap_context_allocator_alloc(struct kbase_csf_heap_context_allocator *const ctx_alloc);
/**
* kbase_csf_heap_context_allocator_free - Free a heap context structure
*
* @ctx_alloc: Pointer to the heap context allocator.
* @heap_gpu_va: The GPU virtual address of a heap context structure that
* was allocated for the firmware.
*
* This function returns a heap context structure to the free pool of unused
* contexts for possible reuse by a future call to
* @kbase_csf_heap_context_allocator_alloc.
*/
void kbase_csf_heap_context_allocator_free(struct kbase_csf_heap_context_allocator *const ctx_alloc,
u64 const heap_gpu_va);
#endif /* _KBASE_CSF_HEAP_CONTEXT_ALLOC_H_ */
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