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The ION android code has long been marked to be removed, now that we
dma-buf support merged into the real part of the kernel.
It was thought that we could wait to remove the ion kernel at a later
time, but as the out-of-tree Android fork of the ion code has diverged
quite a bit, and any Android device using the ion interface uses that
forked version and not this in-tree version, the in-tree copy of the
code is abandonded and not used by anyone.
Combine this abandoned codebase with the need to make changes to it in
order to keep the kernel building properly, which then causes merge
issues when merging those changes into the out-of-tree Android code, and
you end up with two different groups of people (the in-kernel-tree
developers, and the Android kernel developers) who are both annoyed at
the current situation. Because of this problem, just drop the in-kernel
copy of the ion code now, as it's not used, and is only causing problems
for everyone involved.
Cc: "Arve Hjønnevåg" <arve@android.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: Christian Brauner <christian@brauner.io>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Hridya Valsaraju <hridya@google.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Laura Abbott <laura@labbott.name>
Cc: Martijn Coenen <maco@android.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Todd Kjos <tkjos@android.com>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20200827123627.538189-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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ionmap_test compile rule is missing ipcsocket.c dependency. Add it to
fix the following compile errors:
..android/ion/ionutils.c:221: undefined reference to `sendtosocket'
..android/ion/ionutils.c:243: undefined reference to `receivefromsocket'
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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If the kernel headers aren't installed we can't build all the tests.
Add a new make target rule 'khdr' in the file lib.mk to generate the
kernel headers and that gets include for every test-dir Makefile that
includes lib.mk If the testdir in turn have its own sub-dirs the
top_srcdir needs to be set to the linux-rootdir to be able to generate
the kernel headers.
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Reviewed-by: Fathi Boudra <fathi.boudra@linaro.org>
Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
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Fails to build iomap_test.c due to missing include
gcc -I. -I../../../../../drivers/staging/android/uapi/ -Wall -O2 -g
ionmap_test.c ipcsocket.c ionutils.c -o ionmap_test
ionmap_test.c:12:27: fatal error: linux/dma-buf.h: No such file or
directory
#include <linux/dma-buf.h>
^
compilation terminated.
<builtin>: recipe for target 'ionmap_test' failed
make[2]: *** [ionmap_test] Error 1
In the current code, we add a new -I ../../../../../usr/include/ to the
INCLUDEDIR variable. Also add ionmap_test to the .gitignore file.
Fixes: ac93f7046a53 ("selftests: ion: Add simple test with the vgem driver")
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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Ion is designed to be a framework used by other clients who perform
operations on the buffer. Use the DRM vgem client as a simple consumer.
In conjunction with the dma-buf sync ioctls, this tests the full attach/map
path for the system heap.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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This is a test utility to verify ION buffer sharing in user space
between 2 independent processes.
It uses unix domain socket (with SCM_RIGHTS) as IPC to transfer an FD to
another process to share the same buffer.
This utility demonstrates how ION buffer sharing can be implemented between
two user space processes, using various heap types.
This utility is made to be run as part of kselftest framework in kernel.
The utility is verified on Ubuntu-32 bit system with Linux Kernel 4.14,
using ION system heap.
For more information about the utility please check the README file.
Signed-off-by: Pintu Agarwal <pintu.ping@gmail.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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