Create a test for the robust list mechanism.
Signed-off-by: André Almeida
---
Changes from v1:
- Change futex type from int to _Atomic(unsigned int)
- Use old futex(FUTEX_WAIT) instead of the new sys_futex_wait()
---
.../selftests/futex/functional/.gitignore | 1 +
.../selftests/futex
2
not ok 1 futex_requeue simple returned: 0
not ok 2 futex_requeue simple returned: 0
not ok 3 futex_requeue many returned: 0
not ok 4 futex_requeue many returned: 0
Instead, replace the sleep with barriers to make the sequencing
explicit.
Reviewed-by: André Almeida
t;simple" futex interface, that doesn't use PI or robust. Do we want
to have this complexity at futex2() and if so, should it be part of
this patchset or can it be future work?
Thanks,
André
André Almeida (13):
futex2: Implement wait and wake functions
futex2: Add support fo
`timo` argument
As per the Y2038 work done in the kernel, new interfaces shouldn't add
timeout options known to be buggy. Given that, `timo` should be a 64bit
timeout at all platforms, using an absolute timeout value.
Signed-off-by: André Almeida
---
MAINTAINERS
r name or type that matches
the original data, we only need to care about the bitsize of each
component and make both private and shared data fit in the same memory
space.
Signed-off-by: André Almeida
---
fs/inode.c | 1 +
include/linux/fs.h | 1
it
(if it’s the first awakened, if it is of the smaller index...).
Signed-off-by: André Almeida
---
arch/arm/tools/syscall.tbl| 1 +
arch/arm64/include/asm/unistd.h | 2 +-
arch/x86/entry/syscalls/syscall_32.tbl| 1 +
arch/x86/entry/syscalls
de otherwise.
Signed-off-by: André Almeida
---
The original FUTEX_CMP_REQUEUE interfaces is such as follows:
futex(*uaddr1, FUTEX_CMP_REQUEUE, nr_wake, nr_requeue, *uaddr2, cmpval);
Given that when this interface was created they was only one type of
futex (as opposed to futex2, where there is s
Adapt existing futex wait timeout file to test the same mechanism for
futex2. futex2 accepts only absolute 64bit timers, but supports both
monotonic and realtime clocks.
Signed-off-by: André Almeida
---
.../futex/functional/futex_wait_timeout.c | 58 ---
1 file changed, 49
Add a new documentation file specifying both userspace API and internal
implementation details of futex2 syscalls.
Signed-off-by: André Almeida
---
Documentation/locking/futex2.rst | 198 +++
Documentation/locking/index.rst | 1 +
2 files changed, 199 insertions
more tests can evaluate futex2. While 32bit ABIs
from glibc aren't yet able to use 64 bit sized time variables, add a
temporary workaround that implements the required types and calls the
appropriated syscalls, since futex2 doesn't supports 32 bit sized time.
Signed-off-by: And
New syscalls should use the same entry point for x86_64 and x86_x32
paths. Add a wrapper for x32 calls to use parse functions that assumes
32bit pointers.
Signed-off-by: André Almeida
---
kernel/futex2.c | 42 +++---
1 file changed, 35 insertions(+), 7
Create a new file to test the waitv mechanism. Test both private and
shared futexes. Wake the last futex in the array, and check if the
return value from futex_waitv() is the right index.
Signed-off-by: André Almeida
---
.../selftests/futex/functional/.gitignore | 1 +
.../selftests/futex
Add testing for futex_requeue(). The first test just requeue from one
waiter to another one, and wake it. The second performs both wake and
requeue, and we check return values to see if the operation
woke/requeued the expected number of waiters.
Signed-off-by: André Almeida
---
.../selftests
Add support at the existing futex benchmarking code base to enable
futex2 calls. `perf bench` tests can be used not only as a way to
measure the performance of implementation, but also as stress testing
for the kernel infrastructure.
Signed-off-by: André Almeida
---
tools/arch/x86/include/asm
Adapt existing futex wait wouldblock file to test the same mechanism for
futex2.
Signed-off-by: André Almeida
---
.../futex/functional/futex_wait_wouldblock.c | 33 ---
1 file changed, 29 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/futex/functional
will trigger a harmless noop wakeup on the interface
that it isn't using.
Signed-off-by: André Almeida
---
This commit is here for the intend to show what we need to do in order
to get a full NPTL working on top of futex2. It should be merged after
we talk to glibc folks on the details aroun
On 3/15/19 1:43 PM, André Almeida wrote:
Hello,
This series implements support for multiplane pixel formats at vimc.
A lot of changes were required since vimc support for singleplane
was "hardcoded". The code has been adapted in order to support both
formats. When was possible, the
Hi Gabriel,
Às 16:59 de 15/02/21, Gabriel Krisman Bertazi escreveu:
André Almeida writes:
+/**
+ * struct futexv_head - List of futexes to be waited
+ * @task:Task to be awaken
+ * @hint:Was someone on this list awakened?
+ * @objects: List of futexes
+ */
+struct futexv_head
Hi Randy,
Thanks for the feedback. All suggestions/fixes were applied for next
version.
Às 15:34 de 16/02/21, Randy Dunlap escreveu:
On 2/15/21 7:23 AM, André Almeida wrote:
Add a new documentation file specifying both userspace API and internal
implementation details of futex2 syscalls
Hi Peter,
Às 06:02 de 16/02/21, Peter Zijlstra escreveu:
On Mon, Feb 15, 2021 at 12:23:52PM -0300, André Almeida wrote:
+static int __futex_wait(struct futexv_head *futexv, unsigned int nr_futexes,
+ struct hrtimer_sleeper *timeout)
+{
+ int ret;
+
+ while (1
Since commit 9bba03d4473d ("kconfig: remove 'kvmconfig' and 'xenconfig'
shorthands") kvm/xen config shortcuts are not available anymore. Update
the file to reflect how they should be used, with the full filename.
Signed-off-by: André Almeida
---
Documentat
on to reflect this.
Cc: Dominik Brodowski
Fixes: 819671ff849b ("syscalls: define and explain goal to not call syscalls in
the kernel")
Signed-off-by: André Almeida
---
Documentation/process/adding-syscalls.rst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Docume
Hi Matthew,
Às 17:15 de 23/03/21, Matthew Wilcox escreveu:
On Tue, Mar 23, 2021 at 04:59:38PM -0300, André Almeida wrote:
This reverts commit 794c43f716845e2d48ce195ed5c4179a4e05ce5f.
For implementing casefolding support at tmpfs, it needs to set dentry
operations at superblock level, given
Às 17:18 de 23/03/21, Gabriel Krisman Bertazi escreveu:
André Almeida writes:
opt = fs_parse(fc, shmem_fs_parameters, param, &result);
if (opt < 0)
@@ -3468,6 +3519,23 @@ static int shmem_parse_one(struct fs_context *fc, struct
fs_parameter *param)
Hi Al Viro,
Às 20:19 de 23/03/21, Al Viro escreveu:
On Tue, Mar 23, 2021 at 04:59:39PM -0300, André Almeida wrote:
* dcache handling:
For now, negative lookups are not inserted in the dcache, since they
would need to be invalidated anyway, because we can't trust missing file
dentries.
Hi Gabriel,
Às 19:19 de 23/03/21, Gabriel Krisman Bertazi escreveu:
André Almeida writes:
Document mounting options to enable casefold support in tmpfs.
Signed-off-by: André Almeida
---
Documentation/filesystems/tmpfs.rst | 26 ++
1 file changed, 26 insertions
Às 18:58 de 23/03/21, Randy Dunlap escreveu:
Hi--
On 3/23/21 12:59 PM, André Almeida wrote:
Document mounting options to enable casefold support in tmpfs.
Signed-off-by: André Almeida
---
Documentation/filesystems/tmpfs.rst | 26 ++
1 file changed, 26 insertions
setup!
Casefold support in tmpfs is disabled by default.
Thanks,
André
André Almeida (4):
Revert "libfs: unexport generic_ci_d_compare() and
generic_ci_d_hash()"
mm: shmem: Support case-insensitive file name lookups
mm: shmem: Add IOCTL support for tmpfs
docs: tmpfs
e can access those exported function from tmpfs
code.
Signed-off-by: André Almeida
---
fs/libfs.c | 8 +---
include/linux/fs.h | 5 +
2 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/fs/libfs.c b/fs/libfs.c
index e2de5401abca..d1d06494463a 100644
--- a/fs/libfs.c
+++
uments telling the filesystem
code and userspace tools to enforce the encoding. When that optional
flag is set, any attempt to create a file name using an invalid UTF-8
sequence will fail and return an error to userspace.
Signed-off-by: André Almeida
---
include/linux/shmem_fs.h | 1 +
mm/shmem.c
Document mounting options to enable casefold support in tmpfs.
Signed-off-by: André Almeida
---
Documentation/filesystems/tmpfs.rst | 26 ++
1 file changed, 26 insertions(+)
diff --git a/Documentation/filesystems/tmpfs.rst
b/Documentation/filesystems/tmpfs.rst
index
Implement IOCTL operations for files to set/get file flags. Implement
the only supported flag by now, that is S_CASEFOLD.
Signed-off-by: André Almeida
---
include/linux/shmem_fs.h | 4 ++
mm/shmem.c | 84 +++-
2 files changed, 87 insertions
Hi Peter,
Às 02:44 de 04/03/21, Peter Oskolkov escreveu:
On Wed, Mar 3, 2021 at 5:22 PM André Almeida wrote:
Hi,
This patch series introduces the futex2 syscalls.
* FAQ
** "And what's about FUTEX_64?"
By supporting 64 bit futexes, the kernel structure for futex would
Hi Ted,
Às 12:01 de 04/03/21, Theodore Ts'o escreveu:
On Wed, Mar 03, 2021 at 09:42:06PM -0300, André Almeida wrote:
** Performance
- For comparing futex() and futex2() performance, I used the artificial
benchmarks implemented at perf (wake, wake-parallel, hash and
requeue)
Hi Eric,
Às 22:48 de 29/03/21, Eric Biggers escreveu:
On Sun, Mar 28, 2021 at 11:43:54AM -0300, André Almeida wrote:
For directories with negative dentries that are becoming case-insensitive
dirs, we need to remove all those negative dentries, otherwise they will
become dangling dentries
ropped _carefull from linked list function calls
- Fixed typos on docs patch
- uAPI flags are now added as features are introduced, instead of all flags
in patch 1
- Removed struct futex_single_waiter in favor of an anon struct
v1:
https://lore.kernel.org/lkml/20210215152404.250281-1-and
`timo` argument
As per the Y2038 work done in the kernel, new interfaces shouldn't add
timeout options known to be buggy. Given that, `timo` should be a 64bit
timeout at all platforms, using an absolute timeout value.
Signed-off-by: André Almeida
---
MAINTAINERS
it
(if it’s the first awakened, if it is of the smaller index...).
Signed-off-by: André Almeida
---
arch/arm/tools/syscall.tbl| 1 +
arch/arm64/include/asm/unistd.h | 2 +-
arch/arm64/include/asm/unistd32.h | 2 +
arch/x86/entry/syscalls
de otherwise.
Signed-off-by: André Almeida
---
The original FUTEX_CMP_REQUEUE interfaces is such as follows:
futex(*uaddr1, FUTEX_CMP_REQUEUE, nr_wake, nr_requeue, *uaddr2, cmpval);
Given that when this interface was created they was only one type of
futex (as opposed to futex2, where there is s
Add a new documentation file specifying both userspace API and internal
implementation details of futex2 syscalls.
Signed-off-by: André Almeida
---
Documentation/locking/futex2.rst | 198 +++
Documentation/locking/index.rst | 1 +
2 files changed, 199 insertions
Adapt existing futex wait timeout file to test the same mechanism for
futex2. futex2 accepts only absolute 64bit timers, but supports both
monotonic and realtime clocks.
Signed-off-by: André Almeida
---
.../futex/functional/futex_wait_timeout.c | 58 ---
1 file changed, 49
more tests can evaluate futex2. While 32bit ABIs
from glibc aren't yet able to use 64 bit sized time variables, add a
temporary workaround that implements the required types and calls the
appropriated syscalls, since futex2 doesn't supports 32 bit sized time.
Signed-off-by: And
r name or type that matches
the original data, we only need to care about the bitsize of each
component and make both private and shared data fit in the same memory
space.
Signed-off-by: André Almeida
---
fs/inode.c | 1 +
include/linux/fs.h | 1 +
include/uapi/linux/fut
Create a new file to test the waitv mechanism. Test both private and
shared futexes. Wake the last futex in the array, and check if the
return value from futex_waitv() is the right index.
Signed-off-by: André Almeida
---
.../selftests/futex/functional/.gitignore | 1 +
.../selftests/futex
Adapt existing futex wait wouldblock file to test the same mechanism for
futex2.
Signed-off-by: André Almeida
---
.../futex/functional/futex_wait_wouldblock.c | 33 ---
1 file changed, 29 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/futex/functional
New syscalls should use the same entry point for x86_64 and x86_x32
paths. Add a wrapper for x32 calls to use parse functions that assumes
32bit pointers.
Signed-off-by: André Almeida
---
kernel/futex2.c | 42 +++---
1 file changed, 35 insertions(+), 7
Add testing for futex_requeue(). The first test just requeue from one
waiter to another one, and wake it. The second performs both wake and
requeue, and we check return values to see if the operation
woke/requeued the expected number of waiters.
Signed-off-by: André Almeida
---
.../selftests
Add support at the existing futex benchmarking code base to enable
futex2 calls. `perf bench` tests can be used not only as a way to
measure the performance of implementation, but also as stress testing
for the kernel infrastructure.
Signed-off-by: André Almeida
---
tools/arch/x86/include/asm
will trigger a harmless noop wakeup on the interface
that it isn't using.
Signed-off-by: André Almeida
---
This commit is here for the intend to show what we need to do in order
to get a full NPTL working on top of futex2. It should be merged after
we talk to glibc folks on the details aroun
210323195941.69720-1-andrealm...@collabora.com/T/#m3265579197095b792ee8b8e8b7f84a58c25c456b
André Almeida (3):
fs/dcache: Add d_clear_dir_neg_dentries()
ext4: Prevent dangling dentries on casefold directories
f2fs: Prevent dangling dentries on casefold directories
fs/dcache.c| 27 +
be negative.
Create a function to remove all negative dentries from a directory, to
be used as explained above by filesystems that support case-insensitive
lookups.
Signed-off-by: André Almeida
---
fs/dcache.c| 27 +++
include/linux/dcache.h | 1 +
2 files
t;)
Signed-off-by: André Almeida
---
fs/ext4/ioctl.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index a2cf35066f46..0eede4c93c22 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -381,6 +381,9 @@ static int ext4_ioctl_setflags(struct in
t;)
Signed-off-by: André Almeida
---
fs/f2fs/file.c | 4
1 file changed, 4 insertions(+)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index d26ff2ae3f5e..616b7eb43795 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1826,6 +1826,10 @@ static int f2fs_setflags_common(struct inode *
Às 12:07 de 28/03/21, Matthew Wilcox escreveu:
On Sun, Mar 28, 2021 at 11:43:54AM -0300, André Almeida wrote:
+/**
+ * d_clear_dir_neg_dentries - Remove negative dentries in an inode
+ * @dir: Directory to clear negative dentries
+ *
+ * For directories with negative dentries that are becoming
Hello Arthur and Laís,
Thanks for your patch!
On 9/1/19 4:40 PM, Arthur Moraes do Lago wrote:
> Add mean window size parameter for debayer filter as a control in
> vimc-debayer.
>
> vimc-debayer was patched to allow changing mean windows parameter
> of the filter without needing to reload the dr
On 9/30/19 6:54 PM, Minwoo Im wrote:
> Hi André,
>
>> -/*
>> +/**
>> + * blk_mq_rq_from_pdu - cast a PDU to a request
>> + * @pdu: the PDU (protocol unit request) to be casted
>
> It makes sense, but it looks like PDU stands for protocol unit request.
> Could we have it "PDU(Protocol Data Unit)"
On 9/30/19 7:01 PM, Bart Van Assche wrote:
> On 9/30/19 12:48 PM, André Almeida wrote:
>> Insert documentation for structs, enums and functions at header file.
>> Format existing and new comments at struct blk_mq_ops as
>> kernel-doc comments.
>
> Hi André,
>
&g
Hi Helen,
On 10/5/19 10:36 PM, Helen Koike wrote:
> Hi Carlos,
>
> On 10/5/19 9:28 PM, kbuild test robot wrote:
>> Fixes: 4d124d159dff ("media: vimc: get pixformat info from v4l2_format_info
>> to avoid code repetition")
> Usually, the Fixes flag is used for something that is already accepted in
Insert documentation for structs, enums and functions at header file.
Format existing and new comments at struct blk_mq_ops as
kernel-doc comments.
Signed-off-by: André Almeida
---
Hello,
This patch is an effort to enhance the documentation of the multiqueue
API. To check if the comments are
Hello,
On 7/10/19 4:33 AM, Hans Verkuil wrote:
> On 7/10/19 12:19 AM, Helen Koike wrote:
>> Hi André,
>>
>> Thanks for the patches.
>>
>> On 7/2/19 12:47 PM, André Almeida wrote:
>>> Hello,
>>>
>>> This patch adds a V4L2 output device
Hi Shuah,
On 8/12/19 11:08 AM, Shuah Khan wrote:
> On 8/9/19 9:51 PM, Helen Koike wrote:
>> Hi Andre,
>>
>> Thanks for testing this.
>>
>> On 8/9/19 9:24 PM, André Almeida wrote:
>>> On 8/9/19 9:17 PM, Shuah Khan wrote:
>>>> Hi Andre,
>>
Hello Shuah,
Thanks for the patch, I did some comments below.
On 8/9/19 6:45 PM, Shuah Khan wrote:
> vimc uses Component API to split the driver into functional components.
> The real hardware resembles a monolith structure than component and
> component structure added a level of complexity maki
On 8/9/19 9:17 PM, Shuah Khan wrote:
> Hi Andre,
>
> On 8/9/19 5:52 PM, André Almeida wrote:
>> Hello Shuah,
>>
>> Thanks for the patch, I did some comments below.
>>
>> On 8/9/19 6:45 PM, Shuah Khan wrote:
>>> vimc uses Component API to split the
On 7/13/19 7:03 AM, Hans Verkuil wrote:
> On 7/12/19 5:38 PM, André Almeida wrote:
>> Hello,
>>
>> On 7/10/19 4:33 AM, Hans Verkuil wrote:
>>> On 7/10/19 12:19 AM, Helen Koike wrote:
>>>> Hi André,
>>>>
>>>> Thanks for the patch
Hello Mauro,
On 6/21/19 6:17 PM, Mauro Carvalho Chehab wrote:
> Em Mon, 17 Jun 2019 10:32:20 -0300
> André Almeida escreveu:
>
>> Add comments at vimc_streamer_s_stream and vimc_streamer_thread, making
>> the vimc-stream totally documented.
> I'm applying it right n
Signed-off-by: André Almeida
---
Documentation/media/v4l-drivers/vimc.rst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/media/v4l-drivers/vimc.rst
b/Documentation/media/v4l-drivers/vimc.rst
index 4628b12d417f..bece85867424 100644
--- a/Documentation/media/v4l-d
As a more complete version of vimc_streamer_s_streamer comment was added
at "media: vimc: stream: add missing function documentation" commit in
.c file, remove the old documentation from .h file.
Signed-off-by: André Almeida
---
drivers/media/platform/vimc/vimc-streamer.h | 8 --
Since vimc-streamer.{c, h} are fully documented and conforming with the
kernel-doc syntax, add those files to vimc.rst
Signed-off-by: André Almeida
Suggested-by: Mauro Carvalho Chehab
---
Documentation/media/v4l-drivers/vimc.rst | 11 +++
1 file changed, 11 insertions(+)
diff --git a
Format the current existing comments as kernel-doc comments, to be
reused at kernel documention. Add opening marks (/**) and return values.
Signed-off-by: André Almeida
---
drivers/media/platform/vimc/vimc-streamer.c | 38 +
1 file changed, 24 insertions(+), 14 deletions
As in "Function parameters" at doc-guide/kernel-doc.rst, "the
continuation of the description should start at the same column as the
previous line". Make the @producer_pixfmt comply with that.
Signed-off-by: André Almeida
---
drivers/media/platform/vimc/vimc-streamer.h | 1
On 6/23/19 1:40 PM, André Almeida wrote:
> Format the current existing comments as kernel-doc comments, to be
> reused at kernel documention. Add opening marks (/**) and return values.
>
> Signed-off-by: André Almeida
> ---
> drivers/media/platform/vimc/vi
On 6/24/19 6:40 AM, Mauro Carvalho Chehab wrote:
> Em Sun, 23 Jun 2019 18:27:22 -0300
> André Almeida escreveu:
>
>> On 6/23/19 1:40 PM, André Almeida wrote:
>>> - * Calls s_stream to enable stream in all entities of the pipeline.
>>> + * Calls ``vimc_streamer_s
As a more complete version of vimc_streamer_s_streamer comment was added
at "media: vimc: stream: add missing function documentation" commit in
.c file, remove the old documentation from .h file.
Signed-off-by: André Almeida
---
Changes in v2: none
drivers/media/platform/vimc/vimc-
As in "Function parameters" at doc-guide/kernel-doc.rst, "the
continuation of the description should start at the same column as the
previous line". Make the @producer_pixfmt comply with that.
Signed-off-by: André Almeida
---
Changes in v2: none
drivers/media/platform/
Since vimc-streamer.{c, h} are fully documented and conforming with the
kernel-doc syntax, add those files to vimc.rst
Signed-off-by: André Almeida
Suggested-by: Mauro Carvalho Chehab
---
Changes in v2: none
Documentation/media/v4l-drivers/vimc.rst | 11 +++
1 file changed, 11
Signed-off-by: André Almeida
---
Changes in v2: none
Documentation/media/v4l-drivers/vimc.rst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/media/v4l-drivers/vimc.rst
b/Documentation/media/v4l-drivers/vimc.rst
index 4628b12d417f..bece85867424 100644
--- a/Docu
Format the current existing comments as kernel-doc comments, to be
reused at kernel documention. Add opening marks (/**) and return values.
Signed-off-by: André Almeida
---
Changes in v2: replace ``vimc_streamer_s_stream`` for
vimc_streamer_s_stream().
drivers/media/platform/vimc/vimc
Add comments at vimc_streamer_s_stream and vimc_streamer_thread, making
the vimc-stream totally documented.
Signed-off-by: André Almeida
---
Changes in v3: replace "streaming" by "stream" at vimc_streamer_thread().
Changes in v2: fix typos
drivers/media/platform/vimc/
Create vimc documentation file to explain it basics features, it's
topology, how to configure it and to document vimc's subdevices.
Signed-off-by: André Almeida
Suggested-by: Helen Koike
---
Changes in v3: none
Changes in v2:
- Fix typos
- Make clear what does means sc
error value if vimc_cap_try_fmt_vid_cap() has failed.
Signed-off-by: André Almeida
Suggested-by: Helen Koike
---
Hello,
This commit was suggest by Helen at "[v3,05/14] media: vimc: cap:
refactor singleplanar as a subset of multiplanar"
drivers/media/platform/vimc/vimc-capture.c | 5 +++
0 ! videoconvert ! ximagesink
2.b qv4l2 (requires v4l-utils):
Open the output device:
$ qv4l2 -d2
Open the capture device:
$ qv4l2 -d3
Start the streaming at both, at any order. You can change the frame
content at "Test Pattern Generator" -> "Test Pattern" on the output.
a video output device in vimc, as it will make easier for code
reuse and simplicity.
Signed-off-by: André Almeida
---
drivers/media/platform/vimc/Makefile | 2 +-
drivers/media/platform/vimc/vimc-capture.c | 341 ++---
drivers/media/platform/vimc/vimc-video.c | 264
Add write on the list of vb2 file operations. This is required to
create a V4L2 output device.
Signed-off-by: André Almeida
---
drivers/media/platform/vimc/vimc-video.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/media/platform/vimc/vimc-video.h
b/drivers/media/platform/vimc
ces in the pipeline.
Add a vb2 buffer validate function. This is required to
create a V4L2 output device.
Signed-off-by: André Almeida
---
drivers/media/platform/vimc/Makefile| 4 +-
drivers/media/platform/vimc/vimc-common.h | 5 +-
drivers/media/platform/vimc/vimc-debayer.c | 11 +-
dri
Send a NULL buffer through the video pipeline. If the Capture device
gets a NULL buffer, it uses it default fallback frame. Make the capture
device behave more like real devices when there's no frame to show.
Signed-off-by: André Almeida
---
drivers/media/platform/vimc/vimc-capture.c
Add information about the output device. Remove wrong information about
what the capture exposes.
Signed-off-by: André Almeida
---
Documentation/media/v4l-drivers/vimc.rst | 12 ++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/Documentation/media/v4l-drivers/vimc.rst
Update the default topology diagram to reflect the current state of the
driver.
Signed-off-by: André Almeida
---
Documentation/media/v4l-drivers/vimc.dot | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/Documentation/media/v4l-drivers/vimc.dot
b/Documentation/media/v4l
Add the output video device on the hardcoded pipeline. Change the link
to it be enabled by default.
Signed-off-by: André Almeida
---
drivers/media/platform/vimc/vimc-core.c | 7 +++
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/media/platform/vimc/vimc-core.c
b
Hello Helen,
On 7/3/19 4:08 PM, Helen Koike wrote:
> From: Jacob Chen
>
> This commit add document for rkisp1 meta buffer format
>
> Signed-off-by: Jacob Chen
> Acked-by: Hans Verkuil
> [update for upstream]
> Signed-off-by: Helen Koike
>
> ---
>
> Changes in v7:
> - s/correspond/corresponding
Hello Helen,
On 7/3/19 4:09 PM, Helen Koike wrote:
> From: Jacob Chen
>
> Add DT bindings documentation for Rockchip ISP1
>
> Signed-off-by: Jacob Chen
> Reviewed-by: Rob Herring
> [update for upstream]
> Signed-off-by: Helen Koike
>
> ---
>
> Changes in v7:
> - update document with new design
Hello Helen,
On 7/3/19 4:09 PM, Helen Koike wrote:
> From: Jacob Chen
>
> Add DT bindings documentation for Rockchip MIPI D-PHY RX
>
> Signed-off-by: Jacob Chen
> Reviewed-by: Rob Herring
> [update for upstream]
> Signed-off-by: Helen Koike
>
> ---
>
> Changes in v7:
> - updated doc with new d
Hello Helen,
On 7/3/19 4:09 PM, Helen Koike wrote:
> From: Jacob Chen
>
> This is the capture device interface driver that provides the v4l2
> user interface. Frames can be received from ISP1.
>
> Signed-off-by: Jacob Chen
> Signed-off-by: Shunqian Zheng
> Signed-off-by: Yichong Zhong
> Signed
uot;Revert...", not sure if this is relevant.
I've applied this changes at media-master and `test-media vimc` (from
v4l-utils) got 0 errors and 0 warnings. I've also tested with qv4l2, and
the streaming went as expected for all capture devices.
Tested-by: André Almeida
and with v4l2-compliance --streaming=5 -d /dev/videoX and no regressions
where found.
On 3/6/19 7:42 PM, Helen Koike wrote:
There is no need to have the frame field in the vimc_stream struct.
Signed-off-by: Helen Koike
Tested-by: André Almeida
---
drivers/media/platform/vimc/vimc-strea
=5 -d /dev/videoX and no regressions
where found.
Tested-by: André Almeida
---
drivers/media/platform/vimc/vimc-streamer.c | 25 -
1 file changed, 15 insertions(+), 10 deletions(-)
diff --git a/drivers/media/platform/vimc/vimc-streamer.c
b/drivers/media/platform/vimc
ideoX and no regressions
where found.
Tested-by: André Almeida
---
drivers/media/platform/vimc/vimc-capture.c | 76 +++--
drivers/media/platform/vimc/vimc-common.c | 307
drivers/media/platform/vimc/vimc-common.h | 13 +
drivers/media/platform/vimc/vimc-deba
Hello,
This series aims to make some small code improvements that I found in
futex.c, removing some lines and trying to make the code easier to read
and understand.
All commits tested with futex tests from kselftest.
André Almeida (4):
futex: Remove put_futex_key()
futex: Remove needless
Since 4b39f99c ("futex: Remove {get,drop}_futex_key_refs()"),
function put_futex_key() is empty. Remove all references for this
function and redundant labels.
Signed-off-by: André Almeida
---
kernel/futex.c | 61 ++
1 file changed, 12
ed
includes.
Signed-off-by: André Almeida
---
To test this code, I compiled with different configurations (x86_64,
i386, with x32 ABI supported enabled/disabled), and ran futex selftests.
---
kernel/futex.c | 19 ---
1 file changed, 19 deletions(-)
diff --git a/kernel/futex.c b/
Since fshared is meant to true/false values, declare it as bool. If the
code ever reaches the code beneath again label, we are sure that the
futex is shared, so we can use the true value instead of the variable.
Signed-off-by: André Almeida
---
kernel/futex.c | 9 +
1 file changed, 5
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