| Greg Kroah-Hartman | 355b050 | 2011-11-30 20:18:14 +0900 | [diff] [blame] | 1 | menu "Android" |
| 2 | |
| Greg Kroah-Hartman | 355b050 | 2011-11-30 20:18:14 +0900 | [diff] [blame] | 3 | if ANDROID |
| 4 | |
| Robert Love | 11980c2 | 2011-12-20 16:49:48 -0800 | [diff] [blame] | 5 | config ASHMEM |
| 6 | bool "Enable the Anonymous Shared Memory Subsystem" |
| 7 | default n |
| Paul Bolle | 2c0fb1c | 2013-03-14 10:41:39 +0100 | [diff] [blame] | 8 | depends on SHMEM |
| Cruz Julian Bishop | d7f9729 | 2012-12-22 09:00:46 +1000 | [diff] [blame] | 9 | ---help--- |
| Robert Love | 11980c2 | 2011-12-20 16:49:48 -0800 | [diff] [blame] | 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 | |
| Cruz Julian Bishop | d7f9729 | 2012-12-22 09:00:46 +1000 | [diff] [blame] | 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 | |
| Greg Kroah-Hartman | 355b050 | 2011-11-30 20:18:14 +0900 | [diff] [blame] | 17 | config ANDROID_TIMED_OUTPUT |
| 18 | bool "Timed output class driver" |
| 19 | default y |
| 20 | |
| 21 | config ANDROID_TIMED_GPIO |
| 22 | tristate "Android timed gpio driver" |
| Alexandre Courbot | 76ec9d1 | 2013-03-28 04:34:56 -0700 | [diff] [blame] | 23 | depends on GPIOLIB && ANDROID_TIMED_OUTPUT |
| Greg Kroah-Hartman | 355b050 | 2011-11-30 20:18:14 +0900 | [diff] [blame] | 24 | default n |
| 25 | |
| 26 | config ANDROID_LOW_MEMORY_KILLER |
| 27 | bool "Android Low Memory Killer" |
| Greg Kroah-Hartman | 355b050 | 2011-11-30 20:18:14 +0900 | [diff] [blame] | 28 | ---help--- |
| Cruz Julian Bishop | d7f9729 | 2012-12-22 09:00:46 +1000 | [diff] [blame] | 29 | Registers processes to be killed when memory is low |
| Greg Kroah-Hartman | 355b050 | 2011-11-30 20:18:14 +0900 | [diff] [blame] | 30 | |
| Erik Gilling | 7ad530b | 2013-02-28 16:42:57 -0800 | [diff] [blame] | 31 | config SYNC |
| 32 | bool "Synchronization framework" |
| 33 | default n |
| 34 | select ANON_INODES |
| Maarten Lankhorst | 0f0d840 | 2014-07-01 12:57:31 +0200 | [diff] [blame] | 35 | select DMA_SHARED_BUFFER |
| Cruz Julian Bishop | fb51b50 | 2013-09-03 22:05:05 +1000 | [diff] [blame] | 36 | ---help--- |
| Erik Gilling | 7ad530b | 2013-02-28 16:42:57 -0800 | [diff] [blame] | 37 | This option enables the framework for synchronization between multiple |
| 38 | drivers. Sync implementations can take advantage of hardware |
| 39 | synchronization built into devices like GPUs. |
| 40 | |
| Erik Gilling | 9d1906e | 2013-02-28 16:42:58 -0800 | [diff] [blame] | 41 | config SW_SYNC |
| 42 | bool "Software synchronization objects" |
| 43 | default n |
| 44 | depends on SYNC |
| Cruz Julian Bishop | fb51b50 | 2013-09-03 22:05:05 +1000 | [diff] [blame] | 45 | ---help--- |
| Erik Gilling | 9d1906e | 2013-02-28 16:42:58 -0800 | [diff] [blame] | 46 | A sync object driver that uses a 32bit counter to coordinate |
| 47 | syncrhronization. Useful when there is no hardware primitive backing |
| 48 | the synchronization. |
| 49 | |
| 50 | config SW_SYNC_USER |
| 51 | bool "Userspace API for SW_SYNC" |
| 52 | default n |
| 53 | depends on SW_SYNC |
| Cruz Julian Bishop | fb51b50 | 2013-09-03 22:05:05 +1000 | [diff] [blame] | 54 | ---help--- |
| Erik Gilling | 9d1906e | 2013-02-28 16:42:58 -0800 | [diff] [blame] | 55 | Provides a user space API to the sw sync object. |
| 56 | *WARNING* improper use of this can result in deadlocking kernel |
| 57 | drivers from userspace. |
| 58 | |
| Rebecca Schultz Zavin | c30707b | 2013-12-13 19:38:38 -0800 | [diff] [blame] | 59 | source "drivers/staging/android/ion/Kconfig" |
| 60 | |
| Greg Kroah-Hartman | 355b050 | 2011-11-30 20:18:14 +0900 | [diff] [blame] | 61 | endif # if ANDROID |
| 62 | |
| 63 | endmenu |