#include <linux/slab.h>
#include <linux/mm.h>
-#include "hmm/hmm_pool.h"
+#include "hmm_common.h"
+#include "hmm/hmm_bo.h"
#include "ia_css_types.h"
#define mmgr_NULL ((ia_css_ptr)0)
int hmm_bo_mmap(struct vm_area_struct *vma,
struct hmm_buffer_object *bo);
-extern struct hmm_pool dynamic_pool;
-extern struct hmm_pool reserved_pool;
-
/*
* find the buffer object by its virtual address vaddr.
* return NULL if no such buffer object found.
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Support for Medifield PNW Camera Imaging ISP subsystem.
- *
- * Copyright (c) 2010 Intel Corporation. All Rights Reserved.
- *
- * Copyright (c) 2010 Silicon Hive www.siliconhive.com.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * 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.
- *
- *
- */
-#ifndef __HMM_POOL_H__
-#define __HMM_POOL_H__
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/list.h>
-#include <linux/spinlock.h>
-#include <linux/mutex.h>
-#include <linux/kref.h>
-#include "hmm_common.h"
-#include "hmm/hmm_bo.h"
-
-#define ALLOC_PAGE_FAIL_NUM 5
-
-enum hmm_pool_type {
- HMM_POOL_TYPE_RESERVED,
- HMM_POOL_TYPE_DYNAMIC,
-};
-
-/**
- * struct hmm_pool_ops - memory pool callbacks.
- *
- * @pool_init: initialize the memory pool.
- * @pool_exit: uninitialize the memory pool.
- * @pool_alloc_pages: allocate pages from memory pool.
- * @pool_free_pages: free pages to memory pool.
- * @pool_inited: check whether memory pool is initialized.
- */
-struct hmm_pool_ops {
- int (*pool_init)(void **pool, unsigned int pool_size);
- void (*pool_exit)(void **pool);
- unsigned int (*pool_alloc_pages)(void *pool,
- struct hmm_page_object *page_obj,
- unsigned int size, bool cached);
- void (*pool_free_pages)(void *pool,
- struct hmm_page_object *page_obj);
- int (*pool_inited)(void *pool);
-};
-
-struct hmm_pool {
- struct hmm_pool_ops *pops;
-
- void *pool_info;
-};
-
-/**
- * struct hmm_reserved_pool_info - represents reserved pool private data.
- * @pages: a array that store physical pages.
- * The array is as reserved memory pool.
- * @index: to indicate the first blank page number
- * in reserved memory pool(pages array).
- * @pgnr: the valid page amount in reserved memory
- * pool.
- * @list_lock: list lock is used to protect the operation
- * to reserved memory pool.
- * @flag: reserved memory pool state flag.
- */
-struct hmm_reserved_pool_info {
- struct page **pages;
-
- unsigned int index;
- unsigned int pgnr;
- spinlock_t list_lock;
- bool initialized;
-};
-
-/**
- * struct hmm_dynamic_pool_info - represents dynamic pool private data.
- * @pages_list: a list that store physical pages.
- * The pages list is as dynamic memory pool.
- * @list_lock: list lock is used to protect the operation
- * to dynamic memory pool.
- * @flag: dynamic memory pool state flag.
- * @pgptr_cache: struct kmem_cache, manages a cache.
- */
-struct hmm_dynamic_pool_info {
- struct list_head pages_list;
-
- /* list lock is used to protect the free pages block lists */
- spinlock_t list_lock;
-
- struct kmem_cache *pgptr_cache;
- bool initialized;
-
- unsigned int pool_size;
- unsigned int pgnr;
-};
-
-struct hmm_page {
- struct page *page;
- struct list_head list;
-};
-
-extern struct hmm_pool_ops reserved_pops;
-extern struct hmm_pool_ops dynamic_pops;
-
-#endif
#include <linux/sysfs.h>
#include "hmm/hmm.h"
-#include "hmm/hmm_pool.h"
#include "hmm/hmm_bo.h"
#include "atomisp_internal.h"
#include "mmu/sh_mmu_mrfld.h"
struct hmm_bo_device bo_device;
-struct hmm_pool dynamic_pool;
-struct hmm_pool reserved_pool;
static ia_css_ptr dummy_ptr = mmgr_EXCEPTION;
static bool hmm_initialized;
struct _hmm_mem_stat hmm_mem_stat;
return bo_show(dev, attr, buf, &bo_device.entire_bo_list, false);
}
-static ssize_t reserved_pool_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- ssize_t ret = 0;
-
- struct hmm_reserved_pool_info *pinfo = reserved_pool.pool_info;
- unsigned long flags;
-
- if (!pinfo || !pinfo->initialized)
- return 0;
-
- spin_lock_irqsave(&pinfo->list_lock, flags);
- ret = scnprintf(buf, PAGE_SIZE, "%d out of %d pages available\n",
- pinfo->index, pinfo->pgnr);
- spin_unlock_irqrestore(&pinfo->list_lock, flags);
-
- if (ret > 0)
- ret++; /* Add trailing zero, not included by scnprintf */
-
- return ret;
-};
-
-static ssize_t dynamic_pool_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- ssize_t ret = 0;
-
- struct hmm_dynamic_pool_info *pinfo = dynamic_pool.pool_info;
- unsigned long flags;
-
- if (!pinfo || !pinfo->initialized)
- return 0;
-
- spin_lock_irqsave(&pinfo->list_lock, flags);
- ret = scnprintf(buf, PAGE_SIZE, "%d (max %d) pages available\n",
- pinfo->pgnr, pinfo->pool_size);
- spin_unlock_irqrestore(&pinfo->list_lock, flags);
-
- if (ret > 0)
- ret++; /* Add trailing zero, not included by scnprintf */
-
- return ret;
-};
static DEVICE_ATTR_RO(active_bo);
static DEVICE_ATTR_RO(free_bo);
-static DEVICE_ATTR_RO(reserved_pool);
-static DEVICE_ATTR_RO(dynamic_pool);
static struct attribute *sysfs_attrs_ctrl[] = {
&dev_attr_active_bo.attr,
&dev_attr_free_bo.attr,
- &dev_attr_reserved_pool.attr,
- &dev_attr_dynamic_pool.attr,
NULL
};
#include "atomisp_internal.h"
#include "hmm/hmm_common.h"
-#include "hmm/hmm_pool.h"
#include "hmm/hmm_bo.h"
static unsigned int order_to_nr(unsigned int order)
}
static void free_private_bo_pages(struct hmm_buffer_object *bo,
- struct hmm_pool *dypool,
- struct hmm_pool *repool,
int free_pgnr)
{
int i, ret;
for (i = 0; i < free_pgnr; i++) {
switch (bo->page_obj[i].type) {
case HMM_PAGE_TYPE_RESERVED:
- if (repool->pops
- && repool->pops->pool_free_pages) {
- repool->pops->pool_free_pages(repool->pool_info,
- &bo->page_obj[i]);
- hmm_mem_stat.res_cnt--;
- }
break;
- /*
- * HMM_PAGE_TYPE_GENERAL indicates that pages are from system
- * memory, so when free them, they should be put into dynamic
- * pool.
- */
case HMM_PAGE_TYPE_DYNAMIC:
case HMM_PAGE_TYPE_GENERAL:
- if (dypool->pops
- && dypool->pops->pool_inited
- && dypool->pops->pool_inited(dypool->pool_info)) {
- if (dypool->pops->pool_free_pages)
- dypool->pops->pool_free_pages(
- dypool->pool_info,
- &bo->page_obj[i]);
- break;
- }
-
- fallthrough;
-
- /*
- * if dynamic memory pool doesn't exist, need to free
- * pages to system directly.
- */
default:
ret = set_pages_wb(bo->page_obj[i].page, 1);
if (ret)
/*Allocate pages which will be used only by ISP*/
static int alloc_private_pages(struct hmm_buffer_object *bo,
int from_highmem,
- bool cached,
- struct hmm_pool *dypool,
- struct hmm_pool *repool)
+ bool cached)
{
int ret;
unsigned int pgnr, order, blk_pgnr, alloc_pgnr;
i = 0;
alloc_pgnr = 0;
- /*
- * get physical pages from dynamic pages pool.
- */
- if (dypool->pops && dypool->pops->pool_alloc_pages) {
- alloc_pgnr = dypool->pops->pool_alloc_pages(dypool->pool_info,
- bo->page_obj, pgnr,
- cached);
- hmm_mem_stat.dyc_size -= alloc_pgnr;
-
- if (alloc_pgnr == pgnr)
- return 0;
- }
-
- pgnr -= alloc_pgnr;
- i += alloc_pgnr;
-
- /*
- * get physical pages from reserved pages pool for atomisp.
- */
- if (repool->pops && repool->pops->pool_alloc_pages) {
- alloc_pgnr = repool->pops->pool_alloc_pages(repool->pool_info,
- &bo->page_obj[i], pgnr,
- cached);
- hmm_mem_stat.res_cnt += alloc_pgnr;
- if (alloc_pgnr == pgnr)
- return 0;
- }
-
- pgnr -= alloc_pgnr;
- i += alloc_pgnr;
-
while (pgnr) {
order = nr_to_order_bottom(pgnr);
/*
return 0;
cleanup:
alloc_pgnr = i;
- free_private_bo_pages(bo, dypool, repool, alloc_pgnr);
+ free_private_bo_pages(bo, alloc_pgnr);
kfree(bo->page_obj);
return -ENOMEM;
}
-static void free_private_pages(struct hmm_buffer_object *bo,
- struct hmm_pool *dypool,
- struct hmm_pool *repool)
+static void free_private_pages(struct hmm_buffer_object *bo)
{
- free_private_bo_pages(bo, dypool, repool, bo->pgnr);
-
+ free_private_bo_pages(bo, bo->pgnr);
kfree(bo->page_obj);
}
* add HMM_BO_USER type
*/
if (type == HMM_BO_PRIVATE) {
- ret = alloc_private_pages(bo, from_highmem,
- cached, &dynamic_pool, &reserved_pool);
+ ret = alloc_private_pages(bo, from_highmem, cached);
} else if (type == HMM_BO_USER) {
ret = alloc_user_pages(bo, userptr, cached);
} else {
bo->status &= (~HMM_BO_PAGE_ALLOCED);
if (bo->type == HMM_BO_PRIVATE)
- free_private_pages(bo, &dynamic_pool, &reserved_pool);
+ free_private_pages(bo);
else if (bo->type == HMM_BO_USER)
free_user_pages(bo, bo->pgnr);
else
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