1menu "Android"
2
3if ANDROID
4
5config ASHMEM
6	bool "Enable the Anonymous Shared Memory Subsystem"
7	default n
8	depends on SHMEM
9	---help---
10	  The ashmem subsystem is a new shared memory allocator, similar to
11	  POSIX SHM but with different behavior and sporting a simpler
12	  file-based API.
13
14	  It is, in theory, a good memory allocator for low-memory devices,
15	  because it can discard shared memory units when under memory pressure.
16
17config ANDROID_TIMED_OUTPUT
18	bool "Timed output class driver"
19	default y
20
21config ANDROID_TIMED_GPIO
22	tristate "Android timed gpio driver"
23	depends on GPIOLIB || COMPILE_TEST
24	depends on ANDROID_TIMED_OUTPUT
25	default n
26        ---help---
27	  Unlike generic gpio is to allow programs to access and manipulate gpio
28	  registers from user space, timed output/gpio is a system to allow changing
29	  a gpio pin and restore it automatically after a specified timeout.
30
31config ANDROID_LOW_MEMORY_KILLER
32	bool "Android Low Memory Killer"
33	---help---
34	  Registers processes to be killed when low memory conditions, this is useful
35	  as there is no particular swap space on android.
36
37	  The registered process will kills according to the priorities in android init
38	  scripts (/init.rc), and it defines priority values with minimum free memory size
39	  for each priority.
40
41config SYNC
42	bool "Synchronization framework"
43	default n
44	select ANON_INODES
45	select DMA_SHARED_BUFFER
46	---help---
47	  This option enables the framework for synchronization between multiple
48	  drivers.  Sync implementations can take advantage of hardware
49	  synchronization built into devices like GPUs.
50
51config SW_SYNC
52	bool "Software synchronization objects"
53	default n
54	depends on SYNC
55	---help---
56	  A sync object driver that uses a 32bit counter to coordinate
57	  synchronization.  Useful when there is no hardware primitive backing
58	  the synchronization.
59
60config SW_SYNC_USER
61	bool "Userspace API for SW_SYNC"
62	default n
63	depends on SW_SYNC
64	---help---
65	  Provides a user space API to the sw sync object.
66	  *WARNING* improper use of this can result in deadlocking kernel
67	  drivers from userspace.
68
69source "drivers/staging/android/ion/Kconfig"
70
71endif # if ANDROID
72
73endmenu
74