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authorThierry Reding <thierry.reding@gmail.com>2014-05-28 00:36:48 +0200
committerThierry Reding <treding@nvidia.com>2018-03-09 11:48:22 +0100
commit1755f608f5201e0a23f00cc3ea1b01edd07eb6ef (patch)
tree895ac31c09458ff34fa74690b18399ff6607b180 /src/gallium/drivers/tegra/meson.build
parent2052dbdae363f4fd184842733ff9c96bd6e7f08c (diff)
tegra: Initial support
Tegra K1 and later use a GPU that can be driven by the Nouveau driver. But the GPU is a pure render node and has no display engine, hence the scanout needs to happen on the Tegra display hardware. The GPU and the display engine each have a separate DRM device node exposed by the kernel. To make the setup appear as a single device, this driver instantiates a Nouveau screen with each instance of a Tegra screen and forwards GPU requests to the Nouveau screen. For purposes of scanout it will import buffers created on the GPU into the display driver. Handles that userspace requests are those of the display driver so that they can be used to create framebuffers. This has been tested with some GBM test programs, as well as kmscube and weston. All of those run without modifications, but I'm sure there is a lot that can be improved. Some fixes contributed by Hector Martin <marcan@marcan.st>. Changes in v2: - duplicate file descriptor in winsys to avoid potential issues - require nouveau when building the tegra driver - check for nouveau driver name on render node - remove unneeded dependency on libdrm_tegra - remove zombie references to libudev - add missing headers to C_SOURCES variable - drop unneeded tegra/ prefix for includes - open device files with O_CLOEXEC - update copyrights Changes in v3: - properly unwrap resources in ->resource_copy_region() - support vertex buffers passed by user pointer - allocate custom stream and const uploader - silence error message on pre-Tegra124 - support X without explicit PRIME Changes in v4: - ship Meson build files in distribution tarball - drop duplicate driver_tegra dependency Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Acked-by: Emil Velikov <emil.velikov@collabora.com> Tested-by: Andre Heider <a.heider@gmail.com> Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Dylan Baker <dylan@pnwbakers.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'src/gallium/drivers/tegra/meson.build')
-rw-r--r--src/gallium/drivers/tegra/meson.build41
1 files changed, 41 insertions, 0 deletions
diff --git a/src/gallium/drivers/tegra/meson.build b/src/gallium/drivers/tegra/meson.build
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+++ b/src/gallium/drivers/tegra/meson.build
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+# Copyright © 2018 NVIDIA CORPORATION
+
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+files_tegra = files(
+ 'tegra_context.c',
+ 'tegra_context.h',
+ 'tegra_resource.h',
+ 'tegra_screen.c',
+)
+
+libtegra = static_library(
+ 'tegra',
+ files_tegra,
+ c_args : [c_vis_args],
+ include_directories : [
+ inc_include, inc_src, inc_gallium, inc_gallium_aux, inc_gallium_drivers,
+ inc_gallium_winsys, inc_drm_uapi
+ ],
+)
+
+driver_tegra = declare_dependency(
+ compile_args : '-DGALLIUM_TEGRA',
+ link_with : [libtegra, libtegradrm],
+)