提交 b0d017e8 编写于 作者: S Shuah Khan 提交者: Greg Kroah-Hartman

Staging: android: Remove pmem driver

Addroid pmem driver is no longer used in any of the Android products.
This patch removes pmem driver from Android staging area

Reference: https://lkml.org/lkml/2012/1/23/183Signed-off-by: NShuah Khan <shuahkhan@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
上级 3589e745
......@@ -99,10 +99,6 @@ config ANDROID_LOW_MEMORY_KILLER
---help---
Register processes to be killed when memory is low
config ANDROID_PMEM
bool "Android pmem allocator"
depends on ARM
source "drivers/staging/android/switch/Kconfig"
endif # if ANDROID
......
......@@ -5,5 +5,4 @@ obj-$(CONFIG_ANDROID_RAM_CONSOLE) += ram_console.o
obj-$(CONFIG_ANDROID_TIMED_OUTPUT) += timed_output.o
obj-$(CONFIG_ANDROID_TIMED_GPIO) += timed_gpio.o
obj-$(CONFIG_ANDROID_LOW_MEMORY_KILLER) += lowmemorykiller.o
obj-$(CONFIG_ANDROID_PMEM) += pmem.o
obj-$(CONFIG_ANDROID_SWITCH) += switch/
/* include/linux/android_pmem.h
*
* Copyright (C) 2007 Google, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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 _ANDROID_PMEM_H_
#define _ANDROID_PMEM_H_
#define PMEM_IOCTL_MAGIC 'p'
#define PMEM_GET_PHYS _IOW(PMEM_IOCTL_MAGIC, 1, unsigned int)
#define PMEM_MAP _IOW(PMEM_IOCTL_MAGIC, 2, unsigned int)
#define PMEM_GET_SIZE _IOW(PMEM_IOCTL_MAGIC, 3, unsigned int)
#define PMEM_UNMAP _IOW(PMEM_IOCTL_MAGIC, 4, unsigned int)
/* This ioctl will allocate pmem space, backing the file, it will fail
* if the file already has an allocation, pass it the len as the argument
* to the ioctl */
#define PMEM_ALLOCATE _IOW(PMEM_IOCTL_MAGIC, 5, unsigned int)
/* This will connect a one pmem file to another, pass the file that is already
* backed in memory as the argument to the ioctl
*/
#define PMEM_CONNECT _IOW(PMEM_IOCTL_MAGIC, 6, unsigned int)
/* Returns the total size of the pmem region it is sent to as a pmem_region
* struct (with offset set to 0).
*/
#define PMEM_GET_TOTAL_SIZE _IOW(PMEM_IOCTL_MAGIC, 7, unsigned int)
#define PMEM_CACHE_FLUSH _IOW(PMEM_IOCTL_MAGIC, 8, unsigned int)
struct android_pmem_platform_data
{
const char* name;
/* starting physical address of memory region */
unsigned long start;
/* size of memory region */
unsigned long size;
/* set to indicate the region should not be managed with an allocator */
unsigned no_allocator;
/* set to indicate maps of this region should be cached, if a mix of
* cached and uncached is desired, set this and open the device with
* O_SYNC to get an uncached region */
unsigned cached;
/* The MSM7k has bits to enable a write buffer in the bus controller*/
unsigned buffered;
};
struct pmem_region {
unsigned long offset;
unsigned long len;
};
#ifdef CONFIG_ANDROID_PMEM
int is_pmem_file(struct file *file);
int get_pmem_file(int fd, unsigned long *start, unsigned long *vstart,
unsigned long *end, struct file **filp);
int get_pmem_user_addr(struct file *file, unsigned long *start,
unsigned long *end);
void put_pmem_file(struct file* file);
void flush_pmem_file(struct file *file, unsigned long start, unsigned long len);
int pmem_setup(struct android_pmem_platform_data *pdata,
long (*ioctl)(struct file *, unsigned int, unsigned long),
int (*release)(struct inode *, struct file *));
int pmem_remap(struct pmem_region *region, struct file *file,
unsigned operation);
#else
static inline int is_pmem_file(struct file *file) { return 0; }
static inline int get_pmem_file(int fd, unsigned long *start,
unsigned long *vstart, unsigned long *end,
struct file **filp) { return -ENOSYS; }
static inline int get_pmem_user_addr(struct file *file, unsigned long *start,
unsigned long *end) { return -ENOSYS; }
static inline void put_pmem_file(struct file* file) { return; }
static inline void flush_pmem_file(struct file *file, unsigned long start,
unsigned long len) { return; }
static inline int pmem_setup(struct android_pmem_platform_data *pdata,
long (*ioctl)(struct file *, unsigned int, unsigned long),
int (*release)(struct inode *, struct file *)) { return -ENOSYS; }
static inline int pmem_remap(struct pmem_region *region, struct file *file,
unsigned operation) { return -ENOSYS; }
#endif
#endif //_ANDROID_PPP_H_
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