kernel/linux.git/drivers/gpu/drm/tests, branch v6.1.168

drm/tests: Fix incorrect argument in drm_test_mm_insert_range

2023-10-06T12:57:03+00:00

commit 2ba157983974ae1b6aaef7d4953812020d6f1eb5 upstream. While drm_mm test was converted form igt selftest to kunit, unexpected value of "end" argument equal "start" was introduced to one of calls to a function that executes the drm_test_mm_insert_range for specific start/end pair of arguments. As a consequence, DRM_MM_BUG_ON(end <= start) is triggered. Fix it by restoring the original value. Fixes: fc8d29e298cf ("drm: selftest: convert drm_mm selftest to KUnit") Signed-off-by: Janusz Krzysztofik Cc: "Maíra Canal" Cc: Arthur Grillo Cc: Javier Martinez Canillas Cc: Daniel Latypov Cc: stable@vger.kernel.org # v6.1+ Reviewed-by: Maíra Canal Signed-off-by: Maíra Canal Link: https://patchwork.freedesktop.org/patch/msgid/20230911130323.7037-2-janusz.krzysztofik@linux.intel.com Signed-off-by: Greg Kroah-Hartman

drm: test: Fix 32-bit issue in drm_buddy_test

2023-04-26T12:28:36+00:00

[ Upstream commit 25bbe844ef5c4fb4d7d8dcaa0080f922b7cd3a16 ] The drm_buddy_test KUnit tests verify that returned blocks have sizes which are powers of two using is_power_of_2(). However, is_power_of_2() operations on a 'long', but the block size is a u64. So on systems where long is 32-bit, this can sometimes fail even on correctly sized blocks. This only reproduces randomly, as the parameters passed to the buddy allocator in this test are random. The seed 0xb2e06022 reproduced it fine here. For now, just hardcode an is_power_of_2() implementation using x & (x - 1). Signed-off-by: David Gow Acked-by: Christian König Reviewed-by: Maíra Canal Reviewed-by: Arunpravin Paneer Selvam Link: https://patchwork.freedesktop.org/patch/msgid/20230329065532.2122295-2-davidgow@google.com Signed-off-by: Christian König Signed-off-by: Sasha Levin

drm: tests: Fix a buffer overflow in format_helper_test

2022-10-20T07:56:05+00:00

The xrgb2101010 format conversion test (unlike for other formats) does an endianness conversion on the results. However, it always converts TEST_BUF_SIZE 32-bit integers, which results in reading from (and writing to) more memory than in present in the result buffer. Instead, use the buffer size, divided by sizeof(u32). The issue could be reproduced with KASAN: ./tools/testing/kunit/kunit.py run --kunitconfig drivers/gpu/drm/tests \ --kconfig_add CONFIG_KASAN=y --kconfig_add CONFIG_KASAN_VMALLOC=y \ --kconfig_add CONFIG_KASAN_KUNIT_TEST=y \ drm_format_helper_test.*xrgb2101010 Reported-by: Linux Kernel Functional Testing Fixes: 453114319699 ("drm/format-helper: Add KUnit tests for drm_fb_xrgb8888_to_xrgb2101010()") Signed-off-by: David Gow Reviewed-by: Maíra Canal Reviewed-by: Javier Martinez Canillas Reviewed-by: José Expósito Signed-off-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20221019073239.3779180-1-davidgow@google.com

treewide: use get_random_u32() when possible

2022-10-11T23:42:58+00:00

The prandom_u32() function has been a deprecated inline wrapper around get_random_u32() for several releases now, and compiles down to the exact same code. Replace the deprecated wrapper with a direct call to the real function. The same also applies to get_random_int(), which is just a wrapper around get_random_u32(). This was done as a basic find and replace. Reviewed-by: Greg Kroah-Hartman Reviewed-by: Kees Cook Reviewed-by: Yury Norov Reviewed-by: Jan Kara # for ext4 Acked-by: Toke Høiland-Jørgensen # for sch_cake Acked-by: Chuck Lever # for nfsd Acked-by: Jakub Kicinski Acked-by: Mika Westerberg # for thunderbolt Acked-by: Darrick J. Wong # for xfs Acked-by: Helge Deller # for parisc Acked-by: Heiko Carstens # for s390 Signed-off-by: Jason A. Donenfeld

drm/format-helper: Add KUnit tests for drm_fb_xrgb8888_to_gray8()

2022-09-27T17:41:52+00:00

Extend the existing test cases to test the conversion from XRGB8888 to grayscale. Tested-by: Maíra Canal Reviewed-by: David Gow Acked-by: Maxime Ripard Signed-off-by: José Expósito Link: https://patchwork.freedesktop.org/patch/msgid/20220926080837.65734-4-jose.exposito89@gmail.com

drm/format-helper: Add KUnit tests for drm_fb_xrgb8888_to_xrgb2101010()

2022-09-27T17:41:51+00:00

Extend the existing test cases to test the conversion from XRGB8888 to XRGB2101010. In order to be able to call drm_fb_xrgb8888_to_xrgb2101010() when compiling CONFIG_DRM_KMS_HELPER as a module export the symbol. Tested-by: Maíra Canal Reviewed-by: David Gow Acked-by: Maxime Ripard Signed-off-by: José Expósito Link: https://patchwork.freedesktop.org/patch/msgid/20220926080837.65734-3-jose.exposito89@gmail.com

drm/format-helper: Add KUnit tests for drm_fb_xrgb8888_to_rgb888()

2022-09-27T17:41:50+00:00

Extend the existing test cases to test the conversion from XRGB8888 to RGB888. Tested-by: Maíra Canal Reviewed-by: David Gow Acked-by: Maxime Ripard Signed-off-by: José Expósito Link: https://patchwork.freedesktop.org/patch/msgid/20220926080837.65734-2-jose.exposito89@gmail.com

drm/tests: Change "igt_" prefix to "drm_test_"

2022-09-14T16:53:33+00:00

With the introduction of KUnit, IGT is no longer the only option to run the DRM unit tests, as the tests can be run through kunit-tool or on real hardware with CONFIG_KUNIT. Therefore, remove the "igt_" prefix from the tests and replace it with the "drm_test_" prefix, making the tests' names independent from the tool used. Signed-off-by: Maíra Canal Acked-by: David Gow Acked-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20220911191756.203118-2-mairacanal@riseup.net

drm/tests: Split drm_framebuffer_create_test into parameterized tests

2022-09-14T16:53:33+00:00

The igt_check_drm_framebuffer_create is based on a loop that executes tests for all createbuffer_tests test cases. This could be better represented by parameterized tests, provided by KUnit. So, convert the igt_check_drm_framebuffer_create into parameterized tests. Signed-off-by: Maíra Canal Reviewed-by: Michał Winiarski Reviewed-by: David Gow Link: https://patchwork.freedesktop.org/patch/msgid/20220911191756.203118-1-mairacanal@riseup.net

drm/tests: Set also mock plane src_x, src_y, src_w and src_h

2022-09-13T11:38:54+00:00

We need to set also src_x, src_y, src_w and src_h for the mock plane. After fix for drm_atomic_helper_damage_iter_init we are using these when iterating damage_clips. Signed-off-by: Jouni Högander Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20220823112920.352563-5-jouni.hogander@intel.com Reviewed-by: Mika Kahola Tested-by: Maíra Canal