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authorGreg Hartman <ghartman@google.com>2018-04-12 22:17:22 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-04-23 14:51:37 +0200
commit3d2ec9dcd5539d421a6814ded10a1a3008e70548 (patch)
tree13a04a91565fea190b1ebaa8896a2e1f80282140 /drivers/staging/android/TODO
parent7954c88408ca0c49689e75347739c2d5785bf5e0 (diff)
staging: Android: Add 'vsoc' driver for cuttlefish.
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 <gregkh@linuxfoundation.org> Cc: Arve Hjønnevåg <arve@android.com> Cc: Todd Kjos <tkjos@android.com> Cc: Martijn Coenen <maco@android.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: devel@driverdev.osuosl.org Cc: kernel-team@android.com Signed-off-by: Greg Hartman <ghartman@google.com> [astrachan: rebased against 4.16, added TODO, fixed checkpatch issues] Signed-off-by: Alistair Strachan <astrachan@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/android/TODO')
-rw-r--r--drivers/staging/android/TODO10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/staging/android/TODO b/drivers/staging/android/TODO
index 687e0eac85bf..6aab759efa48 100644
--- a/drivers/staging/android/TODO
+++ b/drivers/staging/android/TODO
@@ -11,5 +11,15 @@ ion/
- Split /dev/ion up into multiple nodes (e.g. /dev/ion/heap0)
- Better test framework (integration with VGEM was suggested)
+vsoc.c, uapi/vsoc_shm.h
+ - The current driver uses the same wait queue for all of the futexes in a
+ region. This will cause false wakeups in regions with a large number of
+ waiting threads. We should eventually use multiple queues and select the
+ queue based on the region.
+ - Add debugfs support for examining the permissions of regions.
+ - Use ioremap_wc instead of ioremap_nocache.
+ - Remove VSOC_WAIT_FOR_INCOMING_INTERRUPT ioctl. This functionality has been
+ superseded by the futex and is there for legacy reasons.
+
Please send patches to Greg Kroah-Hartman <greg@kroah.com> and Cc:
Arve Hjønnevåg <arve@android.com> and Riley Andrews <riandrews@android.com>