mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
synced 2024-12-29 09:12:07 +00:00
cbe280ddfc
Prefer 'unsigned int' over plain 'unsigned'. Also make it consistent with mm/cma.c Link: https://lkml.kernel.org/r/tencent_1E5E3AA25C261196D8C1F7097F130E382008@qq.com Signed-off-by: Jiale Yang <295107659@qq.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __MM_CMA_H__
|
|
#define __MM_CMA_H__
|
|
|
|
#include <linux/debugfs.h>
|
|
#include <linux/kobject.h>
|
|
|
|
struct cma_kobject {
|
|
struct kobject kobj;
|
|
struct cma *cma;
|
|
};
|
|
|
|
struct cma {
|
|
unsigned long base_pfn;
|
|
unsigned long count;
|
|
unsigned long *bitmap;
|
|
unsigned int order_per_bit; /* Order of pages represented by one bit */
|
|
spinlock_t lock;
|
|
#ifdef CONFIG_CMA_DEBUGFS
|
|
struct hlist_head mem_head;
|
|
spinlock_t mem_head_lock;
|
|
struct debugfs_u32_array dfs_bitmap;
|
|
#endif
|
|
char name[CMA_MAX_NAME];
|
|
#ifdef CONFIG_CMA_SYSFS
|
|
/* the number of CMA page successful allocations */
|
|
atomic64_t nr_pages_succeeded;
|
|
/* the number of CMA page allocation failures */
|
|
atomic64_t nr_pages_failed;
|
|
/* the number of CMA page released */
|
|
atomic64_t nr_pages_released;
|
|
/* kobject requires dynamic object */
|
|
struct cma_kobject *cma_kobj;
|
|
#endif
|
|
bool reserve_pages_on_error;
|
|
};
|
|
|
|
extern struct cma cma_areas[MAX_CMA_AREAS];
|
|
extern unsigned int cma_area_count;
|
|
|
|
static inline unsigned long cma_bitmap_maxno(struct cma *cma)
|
|
{
|
|
return cma->count >> cma->order_per_bit;
|
|
}
|
|
|
|
#ifdef CONFIG_CMA_SYSFS
|
|
void cma_sysfs_account_success_pages(struct cma *cma, unsigned long nr_pages);
|
|
void cma_sysfs_account_fail_pages(struct cma *cma, unsigned long nr_pages);
|
|
void cma_sysfs_account_release_pages(struct cma *cma, unsigned long nr_pages);
|
|
#else
|
|
static inline void cma_sysfs_account_success_pages(struct cma *cma,
|
|
unsigned long nr_pages) {};
|
|
static inline void cma_sysfs_account_fail_pages(struct cma *cma,
|
|
unsigned long nr_pages) {};
|
|
static inline void cma_sysfs_account_release_pages(struct cma *cma,
|
|
unsigned long nr_pages) {};
|
|
#endif
|
|
#endif
|