| Intel GPU Tools |
| =============== |
| |
| Description |
| ----------- |
| |
| Intel GPU Tools 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 |
| the 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. Therefore, Intel GPU Tools includes low-level tools and tests |
| specifically for development and testing of the Intel DRM Driver. |
| |
| Intel GPU Tools is split into several sections: |
| |
| benchmarks/ |
| This is a collection of useful microbenchmarks that can be used to tune |
| 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. Many of the tests have subtests, which can be listed by using |
| the --list-subtests command line option and then run using the |
| --run-subtest option. If --run-subtest is not used, all subtests will |
| be run. Some tests have futher options and these are detailed by using |
| the --help option. |
| |
| 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 the API |
| documentation 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. |
| |
| 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/ |
| Contains the automatically generated intel-gpu-tools libraries |
| reference documentation in docs/reference/. You need to have the |
| gtk-doc tools installed and use the "--enable-gtk-doc" configure flag |
| 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. |
| |
| |
| Requirements |
| ------------ |
| |
| This is a non-exhaustive list of package dependencies required for building |
| everything (package names may vary): |
| |
| gtk-doc-tools |
| libcairo2-dev |
| libdrm-dev |
| libpciaccess-dev |
| libunwind-dev |
| python-docutils |
| x11proto-dri2-dev |
| xutils-dev |
| |
| Releases for maintainers |
| ------------------------ |
| |
| (1.14) |
| |
| http://www.x.org/wiki/Development/Documentation/ReleaseHOWTO/ |