| Commit message (Collapse) | Author | Age | Files | Lines |
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Map the region shm as write-combining instead of uncachable.
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: Greg Hartman <ghartman@google.com>
Cc: devel@driverdev.osuosl.org
Cc: kernel-team@android.com
Signed-off-by: Alistair Strachan <astrachan@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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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>
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The first line of TODO is invalid because no file
has an error or warning when running checkpatch.pl
Signed-off-by: Joaquin Garmendia Cabrera <joaquingc123@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Most of the items have been taken care of by a clean up series. Remove
the completed items and add a few new ones.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The destaging work is now fully complete.
Cc: Arve Hjønnevåg <arve@android.com>
Cc: Riley Andrews <riandrews@android.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- remove CONFIG_SW_SYNC_USER, it is used only for testing/debugging and
should not be upstreamed.
- port CONFIG_SW_SYNC_USER tests interfaces to use debugfs somehow
- port libsync tests to kselftest
- clean up and ABI check for security issues
- move the sync framework to drivers/base/dma-buf
Cc: Arve Hjønnevåg <arve@android.com>
Cc: Riley Andrews <riandrews@android.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Greg Hackmann <ghackmann@google.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We discussed a bit with the folks on the Cc: list below what to do
with ION. Two big take-aways:
- High-performance drivers (like gpus) always want to play tricks with
coherency and will lie to the dma api (radeon, nouveau, i915 gpu
drivers all do so in upstream). What needs to be done here is fill
gaps in dma-buf so that we can do this without breaking the dma-api
expections of other clients like v4l. The consesus is that hw won't
stop needing these tricks anytime soon.
- Placement constraints for shared buffers won't be solved any other
way than through something platform-specific like ion with
platform-specific knowledge in userspace in something like gralloc.
For general-purpose devices where this assumption would be painful
for userspace (like servers) the consensus is that such devices will
have proper MMUs where placement constraint handling is fairly
irrelevant.
Hence it is reasonable to destage ion as-is without changing the
overall design to enable these use-cases and just fixing up a these
few fairly minor things. Since there won't relly be an open-source
userspace for ion (and hence drm maintainers won't take it) the
proposal is to eventually move it to drivers/android/ion.[hc]. Laura
would be ok with being maintainer once this is all done and ion is
destaged.
Note that Thiago is working on exposing the cpu cache flushing for
cpu access from userspace through mmaps so this is alread in progress.
Also adding him to the Cc: list.
v2: Add ION_IOC_IMPORT to the list of ioctl that probably should go.
Cc: Laura Abbott <labbott@redhat.com>
Cc: sumit.semwal@linaro.org
Cc: laurent.pinchart@ideasonboard.com
Cc: ghackmann@google.com
Cc: robdclark@gmail.com
Cc: david.brown@arm.com
Cc: romlem@google.com
Cc: Tiago Vignatti <tiago.vignatti@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- remove "make sure things build as modules properly"
- remove kuid_t related remarks, they were relevant for logger, but it
is gone half year ago
- remove dead e-mail address of Brian Swetland
- add e-mail addresses of Arve Hjønnevåg and Riley Andrews
Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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A comment about a pre-existing bug data structure definition is added.
This bug was evidently introduced by Xiong Zhou in the patch
bd471258f2e09 ("staging: android: logger: use kuid_t instead of uid_t")
where the code was changed to hide a valid build warning instead of
solving the bug that was identified by it.
Signed-off-by: Somya Anand <somyaanand214@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Below is a patch that fixes some typos in some comments.
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit b0a0ccfad85b3657fe999805df65f5cfe634ab8a.
Turns out I was wrong, we want these in the tree.
Note, I've disabled the drivers from the build at the moment, so other
patches can be applied to fix some build issues due to internal api
changes since the code was removed from the tree.
Cc: Arve Hjønnevåg <arve@android.com>
Cc: Brian Swetland <swetland@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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These drivers are no longer being developed and the original authors
seem to have abandonded them and hence, do not want them in the mainline
kernel tree.
So sad :(
Cc: Brian Swetland <swetland@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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There are files now in the drivers/staging/android/ directory, so the
dummy android.c file can be safely removed.
Cc: Robert Love <rlove@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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