mirror of
https://github.com/hardkernel/kernel_common_drivers.git
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wanwei.jiang
249f5a941a
PD#SWPL-87897 Problem: build error Solution: 1. add config 2. fix memory build error Verify: s4d sc2 a1 c2 c3 Change-Id: If8f5575461fa5da65f2c8d941eaba70508016b89 Signed-off-by: wanwei.jiang <wanwei.jiang@amlogic.com>
74 lines
2.0 KiB
C
74 lines
2.0 KiB
C
/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
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/*
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* Copyright (c) 2019 Amlogic, Inc. All rights reserved.
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*/
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#ifndef __SLAB_TRACE_H__
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#define __SLAB_TRACE_H__
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#include <asm/memory.h>
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#include <asm/stacktrace.h>
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#include <asm/sections.h>
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/*
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* @entry: rb tree for quick search/insert/delete
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* @s_addr: start address for this slab object
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* @e_addr: end address for this slab object
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* @object_count: how many objects in this slab obj
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* @object_ip: a array stores ip for each slab object
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*/
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struct slab_trace {
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struct rb_node entry;
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unsigned long s_addr;
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unsigned long e_addr;
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unsigned int object_count;
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unsigned int *object_ip;
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};
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/*
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* @trace_count: how many slab_trace object we have used
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* @total_obj_size: total object size according obj size
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* @lock: protection for rb tree update
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* @list: link to root list
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* @root: root for rb tree
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*/
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struct slab_trace_group {
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unsigned long trace_count;
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unsigned long total_obj_size;
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unsigned int object_size;
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spinlock_t lock; /* protection for rb tree update */
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struct list_head list;
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struct kmem_cache *ip_cache;
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struct rb_root root;
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};
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#define SLAB_STACK_DEP 7
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/*
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* @hash: hash value for stack
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* @entry: rb tree for quick search
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* @stack: stack for object
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*/
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struct slab_stack {
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unsigned int hash;
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unsigned int use_cnt;
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struct rb_node entry;
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unsigned long stack[SLAB_STACK_DEP];
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};
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struct slab_stack_master {
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int stack_cnt;
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spinlock_t stack_lock; /* protection for rb tree update */
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struct kmem_cache *slab_stack_cache;
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struct rb_root stack_root;
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};
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int slab_trace_init(void);
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int slab_trace_add_page(struct page *page, unsigned int order,
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struct kmem_cache *s, gfp_t flags);
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int slab_trace_remove_page(struct page *page, unsigned int order, struct kmem_cache *s);
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int slab_trace_mark_object(void *object, unsigned long ip,
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struct kmem_cache *s);
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int slab_trace_remove_object(void *object, struct kmem_cache *s);
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int get_cache_max_order(struct kmem_cache *s);
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#endif /* __SLAB_TRACE_H__ */
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