drm: selftest: convert drm_mm selftest to KUnit

Considering the current adoption of the KUnit framework, convert the
DRM mm selftest to the KUnit API.

Signed-off-by: Arthur Grillo <arthur.grillo@usp.br>
Tested-by: David Gow <davidgow@google.com>
Acked-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Maíra Canal <maira.canal@usp.br>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220708203052.236290-10-maira.canal@usp.br
This commit is contained in:
Arthur Grillo 2022-07-08 17:30:52 -03:00 committed by Javier Martinez Canillas
parent 932da86195
commit fc8d29e298
No known key found for this signature in database
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9 changed files with 509 additions and 953 deletions

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@ -617,17 +617,6 @@ Contact: Javier Martinez Canillas <javierm@redhat.com>
Level: Intermediate
Convert Kernel Selftests (kselftest) to KUnit tests when appropriate
--------------------------------------------------------------------
Many of the `Kselftest <https://www.kernel.org/doc/html/latest/dev-tools/kselftest.html>`_
tests in DRM could be converted to Kunit tests instead, since that framework
is more suitable for unit testing.
Contact: Javier Martinez Canillas <javierm@redhat.com>
Level: Starter
Enable trinity for DRM
----------------------

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@ -50,26 +50,6 @@ config DRM_DEBUG_MM
If in doubt, say "N".
config DRM_DEBUG_SELFTEST
tristate "kselftests for DRM"
depends on DRM
depends on DEBUG_KERNEL
select PRIME_NUMBERS
select DRM_DISPLAY_DP_HELPER
select DRM_DISPLAY_HELPER
select DRM_LIB_RANDOM
select DRM_KMS_HELPER
select DRM_BUDDY
select DRM_EXPORT_FOR_TESTS if m
default n
help
This option provides kernel modules that can be used to run
various selftests on parts of the DRM api. This option is not
useful for distributions or general kernels, but only for kernel
developers working on DRM and associated drivers.
If in doubt, say "N".
config DRM_KUNIT_TEST
tristate "KUnit tests for DRM" if !KUNIT_ALL_TESTS
depends on DRM && KUNIT

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@ -75,7 +75,6 @@ obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o
# Drivers and the rest
#
obj-$(CONFIG_DRM_DEBUG_SELFTEST) += selftests/
obj-$(CONFIG_DRM_KUNIT_TEST) += tests/
obj-$(CONFIG_DRM_MIPI_DBI) += drm_mipi_dbi.o

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@ -1,2 +0,0 @@
# SPDX-License-Identifier: GPL-2.0-only
obj-$(CONFIG_DRM_DEBUG_SELFTEST) += test-drm_mm.o

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@ -1,28 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* List each unit test as selftest(name, function)
*
* The name is used as both an enum and expanded as igt__name to create
* a module parameter. It must be unique and legal for a C identifier.
*
* Tests are executed in order by igt/drm_mm
*/
selftest(sanitycheck, igt_sanitycheck) /* keep first (selfcheck for igt) */
selftest(init, igt_init)
selftest(debug, igt_debug)
selftest(reserve, igt_reserve)
selftest(insert, igt_insert)
selftest(replace, igt_replace)
selftest(insert_range, igt_insert_range)
selftest(align, igt_align)
selftest(frag, igt_frag)
selftest(align32, igt_align32)
selftest(align64, igt_align64)
selftest(evict, igt_evict)
selftest(evict_range, igt_evict_range)
selftest(bottomup, igt_bottomup)
selftest(lowest, igt_lowest)
selftest(topdown, igt_topdown)
selftest(highest, igt_highest)
selftest(color, igt_color)
selftest(color_evict, igt_color_evict)
selftest(color_evict_range, igt_color_evict_range)

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@ -1,109 +0,0 @@
/*
* Copyright © 2016 Intel 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 (including the next
* paragraph) 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.
*/
#include <linux/compiler.h>
#define selftest(name, func) __idx_##name,
enum {
#include TESTS
};
#undef selftest
#define selftest(n, f) [__idx_##n] = { .name = #n, .func = f },
static struct drm_selftest {
bool enabled;
const char *name;
int (*func)(void *);
} selftests[] = {
#include TESTS
};
#undef selftest
/* Embed the line number into the parameter name so that we can order tests */
#define param(n) __PASTE(igt__, __PASTE(__PASTE(__LINE__, __), n))
#define selftest_0(n, func, id) \
module_param_named(id, selftests[__idx_##n].enabled, bool, 0400);
#define selftest(n, func) selftest_0(n, func, param(n))
#include TESTS
#undef selftest
static void set_default_test_all(struct drm_selftest *st, unsigned long count)
{
unsigned long i;
for (i = 0; i < count; i++)
if (st[i].enabled)
return;
for (i = 0; i < count; i++)
st[i].enabled = true;
}
static int run_selftests(struct drm_selftest *st,
unsigned long count,
void *data)
{
int err = 0;
set_default_test_all(st, count);
/* Tests are listed in natural order in drm_*_selftests.h */
for (; count--; st++) {
if (!st->enabled)
continue;
pr_debug("drm: Running %s\n", st->name);
err = st->func(data);
if (err)
break;
}
if (WARN(err > 0 || err == -ENOTTY,
"%s returned %d, conflicting with selftest's magic values!\n",
st->name, err))
err = -1;
rcu_barrier();
return err;
}
static int __maybe_unused
__drm_subtests(const char *caller,
const struct drm_subtest *st,
int count,
void *data)
{
int err;
for (; count--; st++) {
pr_debug("Running %s/%s\n", caller, st->name);
err = st->func(data);
if (err) {
pr_err("%s: %s failed with error %d\n",
caller, st->name, err);
return err;
}
}
return 0;
}

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@ -1,41 +0,0 @@
/*
* Copyright © 2016 Intel 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 (including the next
* paragraph) 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.
*/
#ifndef __DRM_SELFTEST_H__
#define __DRM_SELFTEST_H__
struct drm_subtest {
int (*func)(void *data);
const char *name;
};
static int __drm_subtests(const char *caller,
const struct drm_subtest *st,
int count,
void *data);
#define drm_subtests(T, data) \
__drm_subtests(__func__, T, ARRAY_SIZE(T), data)
#define SUBTEST(x) { x, #x }
#endif /* __DRM_SELFTEST_H__ */

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@ -2,4 +2,4 @@
obj-$(CONFIG_DRM_KUNIT_TEST) += drm_format_helper_test.o drm_damage_helper_test.o \
drm_cmdline_parser_test.o drm_rect_test.o drm_format_test.o drm_plane_helper_test.o \
drm_dp_mst_helper_test.o drm_framebuffer_test.o drm_buddy_test.o
drm_dp_mst_helper_test.o drm_framebuffer_test.o drm_buddy_test.o drm_mm_test.o