linux-toradex.git/drivers/gpu/host1x/dev.h, branch v5.3-rc8

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201

2019-05-30T18:29:52+00:00

Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms and conditions of the gnu general public license
  version 2 as published by the free software foundation this program
  is distributed in the hope it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details you should have received a copy of the gnu general
  public license along with this program if not see http www gnu org
  licenses

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 228 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Allison Randal 
Reviewed-by: Steve Winslow 
Reviewed-by: Richard Fontana 
Reviewed-by: Alexios Zavras 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528171438.107155473@linutronix.de
Signed-off-by: Greg Kroah-Hartman

gpu: host1x: Set up stream ID table

2019-02-04T07:35:55+00:00

In order to enable the MMIO path stream ID protection provided by the
incarnation of host1x found in Tegra186 and later, the host1x must be
provided with the list of stream ID register offsets for each of its
clients. Some clients (such as VIC) have multiple stream ID registers
that are assumed to be contiguous. The host1x is programmed with the
base offset and a limit which provide the range of registers that the
host1x needs to monitor for writes.

Signed-off-by: Thierry Reding

gpu: host1x: Remove wait check support

2018-05-18T19:50:04+00:00

The job submission userspace ABI doesn't support this and there are no
plans to implement it, so all of this code is dead and can be removed.

Reviewed-by: Dmitry Osipenko 
Tested-by: Dmitry Osipenko 
Signed-off-by: Thierry Reding

gpu: host1x: Use IOMMU groups

2017-12-21T13:52:36+00:00

Use IOMMU groups to attach the host1x device to its IOMMU domain. This
is not strictly necessary because the domain isn't shared with any other
device, but it makes the code consistent with how IOMMU is handled in
other drivers and provides an easy way to detect when no IOMMU has been
attached via device tree.

Signed-off-by: Thierry Reding

gpu: host1x: Enable Tegra186 syncpoint protection

2017-10-20T12:19:52+00:00

Since Tegra186 the Host1x hardware allows syncpoints to be assigned to
specific channels, preventing any other channels from incrementing
them.

Enable this feature where available and assign syncpoints to channels
when submitting a job. Syncpoints are currently never unassigned from
channels since that would require extra work and is unnecessary with
the current channel allocation model.

Signed-off-by: Mikko Perttunen 
Reviewed-by: Dmitry Osipenko 
Signed-off-by: Thierry Reding

gpu: host1x: Add Tegra186 support

2017-10-20T12:19:51+00:00

Add support for the implementation of Host1x present on the Tegra186.
The register space has been shuffled around a little bit, requiring
addition of some chip-specific code sections. Tegra186 also adds
several new features, most importantly the hypervisor, but those are
not yet supported with this commit.

Signed-off-by: Mikko Perttunen 
Reviewed-by: Dmitry Osipenko 
Tested-by: Dmitry Osipenko 
Signed-off-by: Thierry Reding

gpu: host1x: Refactor channel allocation code

2017-06-15T12:25:38+00:00

This is largely a rewrite of the Host1x channel allocation code, bringing
several changes:

- The previous code could deadlock due to an interaction
  between the 'reflock' mutex and CDMA timeout handling.
  This gets rid of the mutex.
- Support for more than 32 channels, required for Tegra186
- General refactoring, including better encapsulation
  of channel ownership handling into channel.c

Signed-off-by: Mikko Perttunen 
Reviewed-by: Dmitry Osipenko 
Tested-by: Dmitry Osipenko 
Signed-off-by: Thierry Reding

gpu: host1x: Support module reset

2017-04-05T16:11:50+00:00

Newer versions of Tegra come with early boot software that aggressively
puts various modules in reset. Add support to the host1x driver to take
the module out of reset on probe, and assert reset on removal.

Signed-off-by: Thierry Reding

gpu: host1x: Sort includes alphabetically

2017-04-05T16:11:49+00:00

Sorting includes alphabetically makes it easier and less conflict-prone
to add new includes subsequently.

Signed-off-by: Thierry Reding

gpu: host1x: Add IOMMU support

2017-04-05T16:11:43+00:00

Add support for the Host1x unit to be located behind
an IOMMU. This is required when gather buffers may be
allocated non-contiguously in physical memory, as can
be the case when TegraDRM is also using the IOMMU.

Signed-off-by: Mikko Perttunen 
Signed-off-by: Thierry Reding