linux-toradex.git/drivers/gpu/host1x/syncpt.c, branch v4.4.93 Linux kernel for Apalis and Colibri modules gpu: host1x: Export host1x_syncpt_read() 2015-04-02T16:46:20+00:00 Thierry Reding treding@nvidia.com 2015-01-28T13:29:02+00:00 b4a20144e0c0a45431695fa5968ce2ed8c9ce6ca This function is used to read the current value of the syncpt and is useful in situations where drivers don't schedule work and wait for the syncpoint to increment. One particular use-case is using the syncpoint as a VBLANK counter. Signed-off-by: Thierry Reding <treding@nvidia.com> 
This function is used to read the current value of the syncpt and is
useful in situations where drivers don't schedule work and wait for the
syncpoint to increment. One particular use-case is using the syncpoint
as a VBLANK counter.

Signed-off-by: Thierry Reding <treding@nvidia.com>
gpu: host1x: export host1x_syncpt_incr_max() function 2014-04-04T07:12:49+00:00 Bryan Wu pengw@nvidia.com 2014-02-19T22:48:36+00:00 64400c3791d9fcebf23318a289f9da964547a6f3 Tegra V4L2 camera driver needs this function to do frame capture. Signed-off-by: Bryan Wu <pengw@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> 
Tegra V4L2 camera driver needs this function to do frame capture.

Signed-off-by: Bryan Wu <pengw@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
gpu: host1x: Export public API 2013-12-19T08:29:50+00:00 Thierry Reding treding@nvidia.com 2013-11-08T10:41:42+00:00 fae798a156f84d0d835b5d18480abbcad902fe0e Make the public API symbols visible so that depending drivers can be built as a module. Signed-off-by: Thierry Reding <treding@nvidia.com> 
Make the public API symbols visible so that depending drivers can be
built as a module.

Signed-off-by: Thierry Reding <treding@nvidia.com>
gpu: host1x: Add syncpoint base support 2013-10-31T08:55:48+00:00 Arto Merilainen amerilainen@nvidia.com 2013-10-14T12:21:53+00:00 f5a954fed9b3eb04973ede72c50c66157fa9e15b This patch adds support for hardware syncpoint bases. This creates a simple mechanism to stall the command FIFO until an operation is completed. Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> 
This patch adds support for hardware syncpoint bases. This creates
a simple mechanism to stall the command FIFO until an operation is
completed.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
gpu: host1x: Add 'flags' field to syncpt request 2013-10-31T08:55:47+00:00 Arto Merilainen amerilainen@nvidia.com 2013-10-14T12:21:52+00:00 8736fe81532182ba0086a371fae0708ea42a2cdf Functions host1x_syncpt_request() and _host1x_syncpt_alloc() have been taking a separate boolean flag ('client_managed') for indicating if the syncpoint value should be tracked by the host1x driver. This patch converts the field into generic 'flags' field so that we can easily add more information while requesting a syncpoint. Clients are adapted to use the new interface accordingly. Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> 
Functions host1x_syncpt_request() and _host1x_syncpt_alloc() have
been taking a separate boolean flag ('client_managed') for indicating
if the syncpoint value should be tracked by the host1x driver.

This patch converts the field into generic 'flags' field so that
we can easily add more information while requesting a syncpoint.
Clients are adapted to use the new interface accordingly.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
gpu: host1x: Expose syncpt and channel functionality 2013-10-31T08:20:11+00:00 Thierry Reding treding@nvidia.com 2013-09-24T14:30:32+00:00 35d747a81d7eb824bd0c3476cd0c564b52ad5353 Expose the buffer objects, syncpoint and channel functionality in the public public header so that drivers can use them. Signed-off-by: Thierry Reding <treding@nvidia.com> 
Expose the buffer objects, syncpoint and channel functionality in the
public public header so that drivers can use them.

Signed-off-by: Thierry Reding <treding@nvidia.com>
gpu: host1x: Rework CPU syncpoint increment 2013-06-22T10:43:55+00:00 Arto Merilainen amerilainen@nvidia.com 2013-05-29T10:26:08+00:00 ebae30b1fbcc2cc991ce705cc82e16d1e5ddbf51 This patch merges host1x_syncpt_cpu_incr to host1x_syncpt_incr() as they are in practise doing the same thing. host1x_syncpt_incr() is also modified to return error codes. User space interface is modified accordingly to pass return values. Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Acked-By: Terje Bergstrom <tbergstrom@nvidia.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com> 
This patch merges host1x_syncpt_cpu_incr to host1x_syncpt_incr() as
they are in practise doing the same thing. host1x_syncpt_incr() is
also modified to return error codes. User space interface is modified
accordingly to pass return values.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Acked-By: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
gpu: host1x: Fix client_managed type 2013-06-22T10:43:54+00:00 Arto Merilainen amerilainen@nvidia.com 2013-05-29T10:26:07+00:00 ece66891ff452d5643ac5a61649f632984d83c10 client_managed field in syncpoint structure was defined as an integer. The field holds, however, only a boolean value. This patch modifies the type to boolean. Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Acked-By: Terje Bergstrom <tbergstrom@nvidia.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com> 
client_managed field in syncpoint structure was defined as an
integer. The field holds, however, only a boolean value. This patch
modifies the type to boolean.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Acked-By: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
gpu: host1x: Fix memory access in syncpt request 2013-06-22T10:43:54+00:00 Arto Merilainen amerilainen@nvidia.com 2013-05-29T10:26:06+00:00 edeabfcbc150a48e56dd411195ef812134983d6f This patch fixes a bad memory access in syncpoint request code. If no syncpoints were available, the code accessed unreserved memory area causing unexpected behaviour. Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Acked-By: Terje Bergstrom <tbergstrom@nvidia.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com> 
This patch fixes a bad memory access in syncpoint request code. If
no syncpoints were available, the code accessed unreserved memory
area causing unexpected behaviour.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Acked-By: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
gpu: host1x: Add debug support 2013-04-22T10:32:46+00:00 Terje Bergstrom tbergstrom@nvidia.com 2013-03-22T14:34:04+00:00 6236451d83a720072053855fa63d51934024a707 Add support for host1x debugging. Adds debugfs entries, and dumps channel state to UART in case of stuck job. Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de> Tested-by: Thierry Reding <thierry.reding@avionic-design.de> Tested-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> 
Add support for host1x debugging. Adds debugfs entries, and dumps
channel state to UART in case of stuck job.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>