linux-stable.git/drivers/gpu/drm/tegra/submit.c, branch v6.2.2 Linux kernel stable tree drm/tegra: Make gather_bo_ops static 2022-11-25T15:14:59+00:00 ruanjinjie ruanjinjie@huawei.com 2022-09-26T02:29:59+00:00 2a1a310c0cfeabbbf4a9109ce9563e1059731413 The symbol is not used outside of the file, so mark it static. Fixes the following warning: ./drivers/gpu/drm/tegra/submit.c:136:28: warning: symbol 'gather_bo_ops' was not declared. Should it be static? Signed-off-by: ruanjinjie <ruanjinjie@huawei.com> Signed-off-by: Thierry Reding <treding@nvidia.com> 
The symbol is not used outside of the file, so mark it static.

Fixes the following warning:

./drivers/gpu/drm/tegra/submit.c:136:28: warning: symbol 'gather_bo_ops'
was not declared. Should it be static?

Signed-off-by: ruanjinjie <ruanjinjie@huawei.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
drm/tegra: Switch over to vmemdup_user() 2022-11-25T15:14:58+00:00 Qing Wang wangqing@vivo.com 2021-10-18T11:31:26+00:00 bbdca2d41b6c9e2ca8e26ad65ec3d7a1fc7ec8db This patch fixes the following Coccinelle warning: drivers/gpu/drm/tegra/submit.c:173: WARNING opportunity for vmemdup_user Use vmemdup_user() rather than duplicating its implementation. This is a little bit restricted to reduce false positives. Signed-off-by: Qing Wang <wangqing@vivo.com> Signed-off-by: Thierry Reding <treding@nvidia.com> 
This patch fixes the following Coccinelle warning:

drivers/gpu/drm/tegra/submit.c:173: WARNING opportunity for vmemdup_user

Use vmemdup_user() rather than duplicating its implementation.
This is a little bit restricted to reduce false positives.

Signed-off-by: Qing Wang <wangqing@vivo.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
drm/tegra: Support context isolation 2022-07-08T14:27:52+00:00 Mikko Perttunen mperttunen@nvidia.com 2022-06-27T14:19:53+00:00 e09db97889ec647ad373f7a7422c83099c6120c5 For engines that support context isolation, allocate a context when opening a channel, and set up stream ID offset and context fields when submitting a job. As of this commit, the stream ID offset and fallback stream ID are not used when context isolation is disabled. However, with upcoming patches that enable a full featured job opcode sequence, these will be necessary. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> 
For engines that support context isolation, allocate a context when
opening a channel, and set up stream ID offset and context fields
when submitting a job.

As of this commit, the stream ID offset and fallback stream ID
are not used when context isolation is disabled. However, with
upcoming patches that enable a full featured job opcode sequence,
these will be necessary.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
drm/tegra: submit: Remove pm_runtime_enabled() checks 2021-12-16T13:07:08+00:00 Dmitry Osipenko digetx@gmail.com 2021-11-30T23:23:24+00:00 555ae37a5dd2a2703a83965dc26bc99a5db2ecbe Runtime PM is now universally available, make it mandatory by removing the pm_runtime_enabled() checks. Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com> 
Runtime PM is now universally available, make it mandatory by removing
the pm_runtime_enabled() checks.

Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
drm/tegra: submit: Add missing pm_runtime_mark_last_busy() 2021-12-16T13:07:07+00:00 Dmitry Osipenko digetx@gmail.com 2021-11-30T23:23:17+00:00 a21115dd38c6cf396ba39aefd561e7903ca6149d Runtime PM auto-suspension doesn't work without pm_runtime_mark_last_busy(), add it. Cc: <stable@vger.kernel.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com> 
Runtime PM auto-suspension doesn't work without pm_runtime_mark_last_busy(),
add it.

Cc: <stable@vger.kernel.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
drm/tegra: Implement buffer object cache 2021-12-16T13:07:06+00:00 Thierry Reding treding@nvidia.com 2020-02-07T15:50:52+00:00 1f39b1dfa53c84b56d7ad37fed44afda7004959d This cache is used to avoid mapping and unmapping buffer objects unnecessarily. Mappings are cached per client and stay hot until the buffer object is destroyed. Signed-off-by: Thierry Reding <treding@nvidia.com> 
This cache is used to avoid mapping and unmapping buffer objects
unnecessarily. Mappings are cached per client and stay hot until
the buffer object is destroyed.

Signed-off-by: Thierry Reding <treding@nvidia.com>
drm/tegra: Implement correct DMA-BUF semantics 2021-12-16T13:07:06+00:00 Thierry Reding treding@nvidia.com 2021-09-09T13:51:24+00:00 c6aeaf56f468a565f6d2f27325fc07d35cdcd3cb DMA-BUF requires that each device that accesses a DMA-BUF attaches to it separately. To do so the host1x_bo_pin() and host1x_bo_unpin() functions need to be reimplemented so that they can return a mapping, which either represents an attachment or a map of the driver's own GEM object. Signed-off-by: Thierry Reding <treding@nvidia.com> 
DMA-BUF requires that each device that accesses a DMA-BUF attaches to it
separately. To do so the host1x_bo_pin() and host1x_bo_unpin() functions
need to be reimplemented so that they can return a mapping, which either
represents an attachment or a map of the driver's own GEM object.

Signed-off-by: Thierry Reding <treding@nvidia.com>
drm/tegra: Add job firewall 2021-08-10T15:04:05+00:00 Mikko Perttunen mperttunen@nvidia.com 2021-06-10T11:04:55+00:00 8cc95f3fd35e1de3495d9e2acb051162c739cd25 Add a firewall that validates jobs before submission to ensure they don't do anything they aren't allowed to do, like accessing memory they should not access. The firewall is functionality-wise a copy of the firewall already implemented in gpu/host1x. It is copied here as it makes more sense for it to live on the DRM side, as it is only needed for userspace job submissions, and generally the data it needs to do its job is easier to access here. In the future, the other implementation will be removed. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> 
Add a firewall that validates jobs before submission to ensure
they don't do anything they aren't allowed to do, like accessing
memory they should not access.

The firewall is functionality-wise a copy of the firewall already
implemented in gpu/host1x. It is copied here as it makes more
sense for it to live on the DRM side, as it is only needed for
userspace job submissions, and generally the data it needs to
do its job is easier to access here.

In the future, the other implementation will be removed.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
drm/tegra: Implement job submission part of new UAPI 2021-08-10T15:04:05+00:00 Mikko Perttunen mperttunen@nvidia.com 2021-06-10T11:04:54+00:00 13abe0bb15ceac2fb8e8853bd30c278426d95ad0 Implement the job submission IOCTL with a minimum feature set. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> 
Implement the job submission IOCTL with a minimum feature set.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>