linux/drivers/staging/android/Makefile, branch v4.19

staging: Android: Add 'vsoc' driver for cuttlefish.

2018-04-23T12:51:37Z

The cuttlefish system is a virtual SoC architecture based on QEMU. It uses the QEMU ivshmem feature to share memory regions between guest and host with a custom protocol. Cc: Greg Kroah-Hartman Cc: Arve Hjønnevåg Cc: Todd Kjos Cc: Martijn Coenen Cc: Dan Carpenter Cc: devel@driverdev.osuosl.org Cc: kernel-team@android.com Signed-off-by: Greg Hartman [astrachan: rebased against 4.16, added TODO, fixed checkpatch issues] Signed-off-by: Alistair Strachan Signed-off-by: Greg Kroah-Hartman

staging, android: remove lowmemory killer from the tree

2017-03-09T12:47:03Z

Lowmemory killer is sitting in the staging tree since 2008 without any serious interest for fixing issues brought up by the MM folks. The main objection is that the implementation is basically broken by design: - it hooks into slab shrinker API which is not suitable for this purpose. lowmem_count implementation just shows this nicely. There is no scaling based on the memory pressure and no feedback to the generic shrinker infrastructure. Moreover lowmem_scan is called way too often for the heavy work it performs. - it is not reclaim context aware - no NUMA and/or memcg awareness. As the code stands right now it just adds a maintenance overhead when core MM changes have to update lowmemorykiller.c as well. It also seems that the alternative LMK implementation will be solely in the userspace so this code has no perspective it seems. The staging tree is supposed to be for a code which needs to be put in shape before it can be merged which is not the case here obviously. Signed-off-by: Michal Hocko Signed-off-by: Greg Kroah-Hartman

dma-buf/sw_sync: de-stage SW_SYNC

2016-08-15T14:41:46Z

SW_SYNC allows to run tests on the sync_file framework via debugfs on /sync/sw_sync Opening and closing the file triggers creation and release of a sync timeline. To create fences on this timeline the SW_SYNC_IOC_CREATE_FENCE ioctl should be used. To increment the timeline value use SW_SYNC_IOC_INC. Also it exports Sync information on /sync/info Signed-off-by: Gustavo Padovan Reviewed-by: Eric Engestrom Signed-off-by: Greg Kroah-Hartman

staging/android: make sync_timeline internal to sw_sync

2016-06-18T04:17:40Z

The only use sync_timeline will have in upstream kernel is for debugging through the SW_SYNC interface. So make it internal to SW_SYNC to avoid people use it in the future. Signed-off-by: Gustavo Padovan Reviewed-by: Daniel Vetter Reviewed-by: Sumit Semwal Signed-off-by: Greg Kroah-Hartman

staging/android: move sw_sync related code to sw_sync.c

2016-06-18T04:17:40Z

Split sync_debug and sw_sync in two different files. Signed-off-by: Gustavo Padovan Reviewed-by: Daniel Vetter Reviewed-by: Sumit Semwal Signed-off-by: Greg Kroah-Hartman

staging/android: remove sw_sync.[ch] files

2016-06-18T04:17:40Z

We can glue the sw_sync file operations directly on the sync framework without the need to pass through sw_sync wrappers. It only builds sw_sync debugfs file support if CONFIG_SW_SYNC is enabled. Signed-off-by: Gustavo Padovan Reviewed-by: Daniel Vetter Reviewed-by: Sumit Semwal Signed-off-by: Greg Kroah-Hartman

dma-buf/sync_file: de-stage sync_file

2016-04-30T00:37:10Z

sync_file is useful to connect one or more fences to the file. The file is used by userspace to track fences between drivers that share DMA bufs. Signed-off-by: Gustavo Padovan Reviewed-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman

staging/android: prepare sync_file for de-staging

2016-04-30T00:37:10Z

Move its functions and structs to their own file. Also moves function's docs to the .c file. Signed-off-by: Gustavo Padovan Reviewed-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman

android: remove timed output/gpio driver

2016-03-31T01:31:37Z

timed_output was only used by the Android vibrator HAL which has now learned how to use LED triggers instead[1]. Any users of it in AOSP are on ancient kernels. Adding support for LED triggers is purely DT changes and proper kernel config. [1] https://android.googlesource.com/platform%2Fhardware%2Flibhardware/+/61701df363310a5cbd95e3e1638baa9526e42c9b Cc: John Stultz Cc: "Arve Hjønnevåg" Cc: Riley Andrews Signed-off-by: Rob Herring Acked-by: John Stultz Signed-off-by: Greg Kroah-Hartman

staging: Remove logger and alarm-dev from android Makefile

2015-01-28T19:32:39Z

My previous patches deleting logger and alarm-dev from staging missed the android Makefile. This patch cleans up the Makefile to remove the now non-existent files. Cc: Rom Lemarchand , Cc: Mark Salyzyn , Cc: Kees Cook , Cc: Android Kernel Team , Cc: Valentin Rothberg , Cc: Greg Hackmann , Cc: Elliott Hughes , Cc: Todd Poynor , Reported-by: Paul Bolle Signed-off-by: John Stultz Acked-by: Kees Cook Signed-off-by: Greg Kroah-Hartman