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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
*
* (C) COPYRIGHT 2014-2021 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.
*
*/
#ifndef _KBASE_MEM_POOL_DEBUGFS_H_
#define _KBASE_MEM_POOL_DEBUGFS_H_
#include <mali_kbase.h>
/**
* kbase_mem_pool_debugfs_init - add debugfs knobs for @pool
* @parent: Parent debugfs dentry
* @kctx: The kbase context
*
* Adds four debugfs files under @parent:
* - mem_pool_size: get/set the current sizes of @kctx: mem_pools
* - mem_pool_max_size: get/set the max sizes of @kctx: mem_pools
* - lp_mem_pool_size: get/set the current sizes of @kctx: lp_mem_pool
* - lp_mem_pool_max_size: get/set the max sizes of @kctx:lp_mem_pool
*/
void kbase_mem_pool_debugfs_init(struct dentry *parent,
struct kbase_context *kctx);
/**
* kbase_mem_pool_debugfs_trim - Grow or shrink a memory pool to a new size
*
* @array: Address of the first in an array of physical memory pools.
* @index: A memory group ID to be used as an index into the array of memory
* pools. Valid range is 0..(MEMORY_GROUP_MANAGER_NR_GROUPS-1).
* @value: New number of pages in the pool.
*
* If @value > current size, fill the pool with new pages from the kernel, but
* not above the max_size for the pool.
* If @value < current size, shrink the pool by freeing pages to the kernel.
*/
void kbase_mem_pool_debugfs_trim(void *array, size_t index, size_t value);
/**
* kbase_mem_pool_debugfs_set_max_size - Set maximum number of free pages in
* memory pool
*
* @array: Address of the first in an array of physical memory pools.
* @index: A memory group ID to be used as an index into the array of memory
* pools. Valid range is 0..(MEMORY_GROUP_MANAGER_NR_GROUPS-1).
* @value: Maximum number of free pages the pool can hold.
*
* If the maximum size is reduced, the pool will be shrunk to adhere to the
* new limit. For details see kbase_mem_pool_shrink().
*/
void kbase_mem_pool_debugfs_set_max_size(void *array, size_t index,
size_t value);
/**
* kbase_mem_pool_debugfs_size - Get number of free pages in a memory pool
*
* @array: Address of the first in an array of physical memory pools.
* @index: A memory group ID to be used as an index into the array of memory
* pools. Valid range is 0..(MEMORY_GROUP_MANAGER_NR_GROUPS-1).
*
* Note: the size of the pool may in certain corner cases exceed @max_size!
*
* Return: Number of free pages in the pool
*/
size_t kbase_mem_pool_debugfs_size(void *array, size_t index);
/**
* kbase_mem_pool_debugfs_max_size - Get maximum number of free pages in a
* memory pool
*
* @array: Address of the first in an array of physical memory pools.
* @index: A memory group ID to be used as an index into the array of memory
* pools. Valid range is 0..(MEMORY_GROUP_MANAGER_NR_GROUPS-1).
*
* Return: Maximum number of free pages in the pool
*/
size_t kbase_mem_pool_debugfs_max_size(void *array, size_t index);
/**
* kbase_mem_pool_config_debugfs_set_max_size - Set maximum number of free pages
* in initial configuration of pool
*
* @array: Array of initial configurations for a set of physical memory pools.
* @index: A memory group ID to be used as an index into the array.
* Valid range is 0..(MEMORY_GROUP_MANAGER_NR_GROUPS-1).
* @value : Maximum number of free pages that a memory pool created from the
* selected configuration can hold.
*/
void kbase_mem_pool_config_debugfs_set_max_size(void *array, size_t index,
size_t value);
/**
* kbase_mem_pool_config_debugfs_max_size - Get maximum number of free pages
* from initial configuration of pool
*
* @array: Array of initial configurations for a set of physical memory pools.
* @index: A memory group ID to be used as an index into the array.
* Valid range is 0..(MEMORY_GROUP_MANAGER_NR_GROUPS-1).
*
* Return: Maximum number of free pages that a memory pool created from the
* selected configuration can hold.
*/
size_t kbase_mem_pool_config_debugfs_max_size(void *array, size_t index);
#endif /*_KBASE_MEM_POOL_DEBUGFS_H_ */
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