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This is a collection of tools for development and testing of the Intel DRM
driver. There are many macro-level test suites that get used against our
driver, including xtest, rendercheck, piglit, and oglconform, but failures
from those can be difficult to track down to kernel changes, and many require
complicated build procedures or specific testing environments to get useful
results.
Thus, intel-graphics-tools was a project I started to collect some low-level
tools I intended to build.
benchmarks/
This should be a collection of useful microbenchmarks. The hope is
that people can use these to tune some pieces of DRM code in relevant
ways.
The benchmarks require KMS to be enabled. When run with an X Server
running, they must be run as root to avoid the authentication
requirement.
Note that a few other microbenchmarks are in tests (like gem_gtt_speed).
tests/
This is a set of automated tests to run against the DRM to validate
changes. Hopefully this can cover the relevant cases we need to
worry about, including backwards compatibility.
The test suite can be run using the run-tests.sh script available in
the scripts directory. Piglit is used to run the tests and can either
be installed from your distribution (if available), or can be
downloaded locally for use with the script by running:
./scripts/run-tests.sh -d
run-tests.sh has options for filtering and excluding tests from test
runs:
-t <regex> only include tests that match the regular expression
-x <regex> exclude tests that match the regular expression
Useful patterns for test filtering are described in
tests/NAMING-CONVENTION and the full list of tests and subtests can be
produced by passing -l to the run-tests.sh script.
Results are written to a JSON file and an HTML summary can also be
created by passing -s to the run-tests.sh script. Further options are
are detailed by using the -h option.
If not using the script, piglit can be obtained from:
git://anongit.freedesktop.org/piglit
There is no need to build and install piglit if it is only going to be
used for running i-g-t tests.
Set the IGT_TEST_ROOT environment variable to point to the tests
directory, or set the path key in the "igt" section of piglit.conf to
the intel-gpu-tools root directory.
The tests in the i-g-t sources need to have been built already. Then we
can run the testcases with (as usual as root, no other drm clients
running):
piglit-sources # ./piglit run igt <results-file>
The testlist is built at runtime, so no need to update anything in
piglit when adding new tests. See
piglit-sources $ ./piglit run -h
for some useful options.
Piglit only runs a default set of tests and is useful for regression
testing. Other tests not run are:
- tests that might hang the gpu, see HANG in Makefile.am
- gem_stress, a stress test suite. Look at the source for all the
various options.
- testdisplay is only run in the default mode. testdisplay has tons of
options to test different kms functionality, again read the source for
the details.
lib/
Common helper functions and headers used by the other tools.
man/
Manpages, unfortunately rather incomplete.
tools/
This is a collection of debugging tools that had previously been
built with the 2D driver but not shipped. Some distros were hacking
up the 2D build to ship them. Instead, here's a separate package for
people debugging the driver.
These tools generally must be run as root, safe for the ones that just
decode dumps.
tools/quick_dump
Quick dumper is a python tool built with SWIG bindings to
important libraries exported by the rest of the tool suite. The tool
itself is quite straight forward, and should also be a useful example
for others wishing to write python based i915 tools.
Note to package maintainers: It is not recommended to package
this directory, as the tool is not yet designed for wide usage. If the
package is installed via "make install" the users will have to set
their python library path appropriately. Use --disable-dumper
debugger/
This tool is to be used to do shader debugging. It acts like a
debug server accepting connections from debug clients such as
mesa. The connections is made with unix domain sockets, and at some
point it would be nice if this directory contained a library for
initiating connections with debug clients..
The debugger must be run as root: "sudo debugger/eudb"
docs/
Thus far just contains the autogenerated intel-gpu-tools libraries
reference documenation in docs/reference/ You need to have the gtk doc
tools installed to generate this API documentation.
To regenerate the html files when updating documentation, use:
$ make clean -C docs && make -C docs
If you've added/changed/removed a symbol or anything else that changes
the overall structure or indexes, this needs to be reflected in
intel-gpu-tools-sections.txt. Entirely new sections will also need to be
added to intel-gpu-tools-docs.xml in the appropriate place.
DEPENDENCIES
This is a non-exchaustive list of package dependencies required for
building everything:
libpciaccess-dev
libdrm-dev
xutils-dev
libcairo2-dev
swig2.0
libpython3.3-dev
x11proto-dri2-dev
gtk-doc-tools
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