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path: root/tests/kms_pwrite_crc.c
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2016-01-08lib: Extract some common fb create+fill methods into helpersVille Syrjälä
Several tests do one or more of the following: * igt_create_fb() + igt_paint_test_pattern() * igt_create_color_fb() + igt_paint_test_pattern() * igt_create_fb() + igt_paint_image() Extract them into new helpers: igt_create_pattern_fb(), igt_create_color_pattern_fb(), igt_create_image_fb(). v2: Fix typos, and improve API docs (Thomas) Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
2015-09-11convert drm_open_any*() calls to drm_open_driver*(DRIVER_INTEL) calls with cocciMicah Fedke
Apply the new API to all call sites within the test suite using the following semantic patch: // Semantic patch for replacing drm_open_any* with arch-specific drm_open_driver* calls @@ identifier i =~ "\bdrm_open_any\b"; @@ - i() + drm_open_driver(DRIVER_INTEL) @@ identifier i =~ "\bdrm_open_any_master\b"; @@ - i() + drm_open_driver_master(DRIVER_INTEL) @@ identifier i =~ "\bdrm_open_any_render\b"; @@ - i() + drm_open_driver_render(DRIVER_INTEL) @@ identifier i =~ "\b__drm_open_any\b"; @@ - i() + __drm_open_driver(DRIVER_INTEL) Signed-off-by: Micah Fedke <micah.fedke@collabora.co.uk> Signed-off-by: Thomas Wood <thomas.wood@intel.com>
2015-08-21lib: add a single include headerThomas Wood
Add a header that includes all the headers for the library. This allows reorganisation of the library without affecting programs using it and also simplifies the headers that need to be included to use the library. Signed-off-by: Thomas Wood <thomas.wood@intel.com>
2015-08-12tests/kms_pwrite_crc: Use drmModeSetPlane() instead of igt_plane_set_fb()Ville Syrjälä
igt_plane_set_fb()+igt_display_commit() have too much overhead, and that causes the cache to get flushed before we flip, making the test useless, at least on machines with small LLC. Switch to drmModeSetPlane() to reduce the chance that the cache gets flushed before we grab the crc. Still nowhere near 100% reliable on my IVB laptop with 3 MiB LLC, but at least it can now hit the problem occasioanally. My desktop IVB with 8 MiB LLC seems to hit it rather reliably. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
2015-03-23tests: Remove usage of igt_crc_equal and _non_nullDaniel Vetter
Tests should positively check for crc matches, not for mismatches. Enforce this by only exposing and igt_assert function for comparing crcs. For the few tests which didn't just do this as consistency checks but to do functional tests add FIXME comments that some reference crc values are missing. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-03-23lib/debugfs: Add igt_assert_crc_equalDaniel Vetter
Because of hash collisions tests should only ever compare crc checksums for equality. Checking for inequality can result in random failures. To ensure this only expose and igt_assert function and use that. Follow-up patches will rework the code for tests which don't follow this requirement and try to compare for CRC inequality. v2: Rebase on top of Matt's kms_plane changes. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-03-12tiling: Convert framebuffer helpers to use fb modifiersTvrtko Ursulin
This converts the IGT API only, underneath legacy set_tiling is still used. v2: One got away in kms_flip. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
2014-11-24lib/igt_debugfs: Don't setup crc in _newDaniel Vetter
The problem is that this causes writes to registers, and if the pipe is off they might go nowhere (e.g. when runtime pm is enabled). Furthermore we can only really check once the modeset setup is done, but again most tests set up the CRC structure before calling igt_commit and friends. We could add crc restore support to the kernel's rpm code, but that will end up being rather invasive and fragile hard-to-test code. Now originally this was needed back when CRC support wasn't available everywhere. But that's fixed now. So given all this just drop that sanity check and make sure that we only touch the debugfs file (and so the hw state) when we know the pipe is running in the desired configuration. A complementary kernel patch will try to catch offenders by returning -EIO if the pipe is off. v2: Forgot to git add one hunk. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=86092 Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2014-11-13tests/kms_pwrite_crc: Add pwrite vs display coherency testVille Syrjälä
Add a test to verify that pwriting to a future scanout buffer works correctly. The specific problem occurs when the buffer is already UC/WT before the pwrite, not the current scanout buffer, and not currently in the CPU write domain. With the buggy kernel no clflush will be performed after the pwrite, and hence we end up with cache dirt on the display. The problem only affects LLC platforms (non-LLC would clflush anyway after pwrite), but we can let the test run on all platforms. v2: Fix typos in commit message and add to .gitignore Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>