drivers/staging/android/Kconfig

   1 menu "Android"
   2
   3 if ANDROID
   4
   5 config 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
  17 config ANDROID_LOGGER
  18         tristate "Android log driver"
  19         default n
  20         ---help---
  21           This adds support for system-wide logging using four log buffers.
  22
  23           These are:
  24
  25               1: main
  26               2: events
  27               3: radio
  28               4: system
  29
  30           Log reading and writing is performed via normal Linux reads and
  31           optimized writes. This optimization avoids logging having too
  32           much overhead in the system.
  33
  34 config ANDROID_TIMED_OUTPUT
  35         bool "Timed output class driver"
  36         default y
  37
  38 config ANDROID_TIMED_GPIO
  39         tristate "Android timed gpio driver"
  40         depends on GPIOLIB && ANDROID_TIMED_OUTPUT
  41         default n
  42
  43 config ANDROID_LOW_MEMORY_KILLER
  44         bool "Android Low Memory Killer"
  45         ---help---
  46           Registers processes to be killed when memory is low
  47
  48 config ANDROID_INTF_ALARM_DEV
  49         tristate "Android alarm driver"
  50         depends on RTC_CLASS
  51         default n
  52         ---help---
  53           Provides non-wakeup and rtc backed wakeup alarms based on rtc or
  54           elapsed realtime, and a non-wakeup alarm on the monotonic clock.
  55           Also exports the alarm interface to user-space.
  56
  57 config SYNC
  58         bool "Synchronization framework"
  59         default n
  60         select ANON_INODES
  61         select DMA_SHARED_BUFFER
  62         ---help---
  63           This option enables the framework for synchronization between multiple
  64           drivers.  Sync implementations can take advantage of hardware
  65           synchronization built into devices like GPUs.
  66
  67 config SW_SYNC
  68         bool "Software synchronization objects"
  69         default n
  70         depends on SYNC
  71         ---help---
  72           A sync object driver that uses a 32bit counter to coordinate
  73           syncrhronization.  Useful when there is no hardware primitive backing
  74           the synchronization.
  75
  76 config SW_SYNC_USER
  77         bool "Userspace API for SW_SYNC"
  78         default n
  79         depends on SW_SYNC
  80         ---help---
  81           Provides a user space API to the sw sync object.
  82           *WARNING* improper use of this can result in deadlocking kernel
  83           drivers from userspace.
  84
  85 source "drivers/staging/android/ion/Kconfig"
  86
  87 endif # if ANDROID
  88
  89 endmenu