[PATCH v4 9/9] drm: selftest: convert drm_mm selftest to KUnit

From: Maíra Canal
Date: Sat Jul 02 2022 - 09:13:39 EST

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From: Arthur Grillo <arthur.grillo@xxxxxx>

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

Signed-off-by: Arthur Grillo <arthur.grillo@xxxxxx>
Tested-by: David Gow <davidgow@xxxxxxxxxx>
Acked-by: Daniel Latypov <dlatypov@xxxxxxxxxx>
Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
Signed-off-by: Maíra Canal <maira.canal@xxxxxx>
---
Documentation/gpu/todo.rst | 11 -
drivers/gpu/drm/Kconfig | 20 -
drivers/gpu/drm/Makefile | 1 -
drivers/gpu/drm/selftests/Makefile | 2 -
drivers/gpu/drm/selftests/drm_mm_selftests.h | 28 -
drivers/gpu/drm/selftests/drm_selftest.c | 109 --
drivers/gpu/drm/selftests/drm_selftest.h | 41 -
drivers/gpu/drm/tests/Makefile | 2 +-
.../test-drm_mm.c => tests/drm_mm_test.c} | 1136 +++++++----------
9 files changed, 453 insertions(+), 897 deletions(-)
delete mode 100644 drivers/gpu/drm/selftests/Makefile
delete mode 100644 drivers/gpu/drm/selftests/drm_mm_selftests.h
delete mode 100644 drivers/gpu/drm/selftests/drm_selftest.c
delete mode 100644 drivers/gpu/drm/selftests/drm_selftest.h
rename drivers/gpu/drm/{selftests/test-drm_mm.c => tests/drm_mm_test.c} (58%)

diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
index 513b20ccef1e..10bfb50908d1 100644
--- a/Documentation/gpu/todo.rst
+++ b/Documentation/gpu/todo.rst
@@ -617,17 +617,6 @@ Contact: Javier Martinez Canillas <javierm@xxxxxxxxxx>

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@xxxxxxxxxx>
-
-Level: Starter
-
Enable trinity for DRM
----------------------

diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 06822ecf51c6..1c91e1e861a5 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -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
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index e7af358e6dda..25016dcab55e 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -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-$(CONFIG_DRM_MIPI_DBI) += drm_mipi_dbi.o
diff --git a/drivers/gpu/drm/selftests/Makefile b/drivers/gpu/drm/selftests/Makefile
deleted file mode 100644
index a4ebecb8146b..000000000000
--- a/drivers/gpu/drm/selftests/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-obj-$(CONFIG_DRM_DEBUG_SELFTEST) += test-drm_mm.o
diff --git a/drivers/gpu/drm/selftests/drm_mm_selftests.h b/drivers/gpu/drm/selftests/drm_mm_selftests.h
deleted file mode 100644
index 8c87c964176b..000000000000
--- a/drivers/gpu/drm/selftests/drm_mm_selftests.h
+++ /dev/null
@@ -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)
diff --git a/drivers/gpu/drm/selftests/drm_selftest.c b/drivers/gpu/drm/selftests/drm_selftest.c
deleted file mode 100644
index e29ed9faef5b..000000000000
--- a/drivers/gpu/drm/selftests/drm_selftest.c
+++ /dev/null
@@ -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;
-}
diff --git a/drivers/gpu/drm/selftests/drm_selftest.h b/drivers/gpu/drm/selftests/drm_selftest.h
deleted file mode 100644
index c784ec02ff53..000000000000
--- a/drivers/gpu/drm/selftests/drm_selftest.h
+++ /dev/null
@@ -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__ */
diff --git a/drivers/gpu/drm/tests/Makefile b/drivers/gpu/drm/tests/Makefile
index cff59189598f..91b70f7d2769 100644
--- a/drivers/gpu/drm/tests/Makefile
+++ b/drivers/gpu/drm/tests/Makefile
@@ -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
diff --git a/drivers/gpu/drm/selftests/test-drm_mm.c b/drivers/gpu/drm/tests/drm_mm_test.c
similarity index 58%
rename from drivers/gpu/drm/selftests/test-drm_mm.c
rename to drivers/gpu/drm/tests/drm_mm_test.c
index b768b53c4aee..e5bd8a35168c 100644
--- a/drivers/gpu/drm/selftests/test-drm_mm.c
+++ b/drivers/gpu/drm/tests/drm_mm_test.c
@@ -1,11 +1,12 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Test cases for the drm_mm range manager
+ *
+ * Copyright (c) 2022 Arthur Grillo <arthur.grillo@xxxxxx>
*/

-#define pr_fmt(fmt) "drm_mm: " fmt
+#include <kunit/test.h>

-#include <linux/module.h>
#include <linux/prime_numbers.h>
#include <linux/slab.h>
#include <linux/random.h>
@@ -16,9 +17,6 @@

#include "../lib/drm_random.h"

-#define TESTS "drm_mm_selftests.h"
-#include "drm_selftest.h"
-
static unsigned int random_seed;
static unsigned int max_iterations = 8192;
static unsigned int max_prime = 128;
@@ -45,13 +43,7 @@ static const struct insert_mode {
{}
};

-static int igt_sanitycheck(void *ignored)
-{
- pr_info("%s - ok!\n", __func__);
- return 0;
-}
-
-static bool assert_no_holes(const struct drm_mm *mm)
+static bool assert_no_holes(struct kunit *test, const struct drm_mm *mm)
{
struct drm_mm_node *hole;
u64 hole_start, __always_unused hole_end;
@@ -61,13 +53,14 @@ static bool assert_no_holes(const struct drm_mm *mm)
drm_mm_for_each_hole(hole, mm, hole_start, hole_end)
count++;
if (count) {
- pr_err("Expected to find no holes (after reserve), found %lu instead\n", count);
+ KUNIT_FAIL(test,
+ "Expected to find no holes (after reserve), found %lu instead\n", count);
return false;
}

drm_mm_for_each_node(hole, mm) {
if (drm_mm_hole_follows(hole)) {
- pr_err("Hole follows node, expected none!\n");
+ KUNIT_FAIL(test, "Hole follows node, expected none!\n");
return false;
}
}
@@ -75,7 +68,7 @@ static bool assert_no_holes(const struct drm_mm *mm)
return true;
}

-static bool assert_one_hole(const struct drm_mm *mm, u64 start, u64 end)
+static bool assert_one_hole(struct kunit *test, const struct drm_mm *mm, u64 start, u64 end)
{
struct drm_mm_node *hole;
u64 hole_start, hole_end;
@@ -89,62 +82,62 @@ static bool assert_one_hole(const struct drm_mm *mm, u64 start, u64 end)
drm_mm_for_each_hole(hole, mm, hole_start, hole_end) {
if (start != hole_start || end != hole_end) {
if (ok)
- pr_err("empty mm has incorrect hole, found (%llx, %llx), expect (%llx, %llx)\n",
- hole_start, hole_end,
- start, end);
+ KUNIT_FAIL(test,
+ "empty mm has incorrect hole, found (%llx, %llx), expect (%llx, %llx)\n",
+ hole_start, hole_end, start, end);
ok = false;
}
count++;
}
if (count != 1) {
- pr_err("Expected to find one hole, found %lu instead\n", count);
+ KUNIT_FAIL(test, "Expected to find one hole, found %lu instead\n", count);
ok = false;
}

return ok;
}

-static bool assert_continuous(const struct drm_mm *mm, u64 size)
+static bool assert_continuous(struct kunit *test, const struct drm_mm *mm, u64 size)
{
struct drm_mm_node *node, *check, *found;
unsigned long n;
u64 addr;

- if (!assert_no_holes(mm))
+ if (!assert_no_holes(test, mm))
return false;

n = 0;
addr = 0;
drm_mm_for_each_node(node, mm) {
if (node->start != addr) {
- pr_err("node[%ld] list out of order, expected %llx found %llx\n",
+ KUNIT_FAIL(test, "node[%ld] list out of order, expected %llx found %llx\n",
n, addr, node->start);
return false;
}

if (node->size != size) {
- pr_err("node[%ld].size incorrect, expected %llx, found %llx\n",
+ KUNIT_FAIL(test, "node[%ld].size incorrect, expected %llx, found %llx\n",
n, size, node->size);
return false;
}

if (drm_mm_hole_follows(node)) {
- pr_err("node[%ld] is followed by a hole!\n", n);
+ KUNIT_FAIL(test, "node[%ld] is followed by a hole!\n", n);
return false;
}

found = NULL;
drm_mm_for_each_node_in_range(check, mm, addr, addr + size) {
if (node != check) {
- pr_err("lookup return wrong node, expected start %llx, found %llx\n",
- node->start, check->start);
+ KUNIT_FAIL(test,
+ "lookup return wrong node, expected start %llx, found %llx\n",
+ node->start, check->start);
return false;
}
found = check;
}
if (!found) {
- pr_err("lookup failed for node %llx + %llx\n",
- addr, size);
+ KUNIT_FAIL(test, "lookup failed for node %llx + %llx\n", addr, size);
return false;
}

@@ -166,30 +159,31 @@ static u64 misalignment(struct drm_mm_node *node, u64 alignment)
return rem;
}

-static bool assert_node(struct drm_mm_node *node, struct drm_mm *mm,
+static bool assert_node(struct kunit *test, struct drm_mm_node *node, struct drm_mm *mm,
u64 size, u64 alignment, unsigned long color)
{
bool ok = true;

if (!drm_mm_node_allocated(node) || node->mm != mm) {
- pr_err("node not allocated\n");
+ KUNIT_FAIL(test, "node not allocated\n");
ok = false;
}

if (node->size != size) {
- pr_err("node has wrong size, found %llu, expected %llu\n",
+ KUNIT_FAIL(test, "node has wrong size, found %llu, expected %llu\n",
node->size, size);
ok = false;
}

if (misalignment(node, alignment)) {
- pr_err("node is misaligned, start %llx rem %llu, expected alignment %llu\n",
- node->start, misalignment(node, alignment), alignment);
+ KUNIT_FAIL(test,
+ "node is misaligned, start %llx rem %llu, expected alignment %llu\n",
+ node->start, misalignment(node, alignment), alignment);
ok = false;
}

if (node->color != color) {
- pr_err("node has wrong color, found %lu, expected %lu\n",
+ KUNIT_FAIL(test, "node has wrong color, found %lu, expected %lu\n",
node->color, color);
ok = false;
}
@@ -197,76 +191,64 @@ static bool assert_node(struct drm_mm_node *node, struct drm_mm *mm,
return ok;
}

-#define show_mm(mm) do { \
- struct drm_printer __p = drm_debug_printer(__func__); \
- drm_mm_print((mm), &__p); } while (0)
-
-static int igt_init(void *ignored)
+static void igt_mm_init(struct kunit *test)
{
const unsigned int size = 4096;
struct drm_mm mm;
struct drm_mm_node tmp;
- int ret = -EINVAL;

/* Start with some simple checks on initialising the struct drm_mm */
memset(&mm, 0, sizeof(mm));
- if (drm_mm_initialized(&mm)) {
- pr_err("zeroed mm claims to be initialized\n");
- return ret;
- }
+ KUNIT_ASSERT_FALSE_MSG(test, drm_mm_initialized(&mm),
+ "zeroed mm claims to be initialized\n");

memset(&mm, 0xff, sizeof(mm));
drm_mm_init(&mm, 0, size);
if (!drm_mm_initialized(&mm)) {
- pr_err("mm claims not to be initialized\n");
+ KUNIT_FAIL(test, "mm claims not to be initialized\n");
goto out;
}

if (!drm_mm_clean(&mm)) {
- pr_err("mm not empty on creation\n");
+ KUNIT_FAIL(test, "mm not empty on creation\n");
goto out;
}

/* After creation, it should all be one massive hole */
- if (!assert_one_hole(&mm, 0, size)) {
- ret = -EINVAL;
+ if (!assert_one_hole(test, &mm, 0, size)) {
+ KUNIT_FAIL(test, "");
goto out;
}

memset(&tmp, 0, sizeof(tmp));
tmp.start = 0;
tmp.size = size;
- ret = drm_mm_reserve_node(&mm, &tmp);
- if (ret) {
- pr_err("failed to reserve whole drm_mm\n");
+ if (drm_mm_reserve_node(&mm, &tmp)) {
+ KUNIT_FAIL(test, "failed to reserve whole drm_mm\n");
goto out;
}

/* After filling the range entirely, there should be no holes */
- if (!assert_no_holes(&mm)) {
- ret = -EINVAL;
+ if (!assert_no_holes(test, &mm)) {
+ KUNIT_FAIL(test, "");
goto out;
}

/* And then after emptying it again, the massive hole should be back */
drm_mm_remove_node(&tmp);
- if (!assert_one_hole(&mm, 0, size)) {
- ret = -EINVAL;
+ if (!assert_one_hole(test, &mm, 0, size)) {
+ KUNIT_FAIL(test, "");
goto out;
}

out:
- if (ret)
- show_mm(&mm);
drm_mm_takedown(&mm);
- return ret;
}

-static int igt_debug(void *ignored)
+static void igt_mm_debug(struct kunit *test)
{
struct drm_mm mm;
struct drm_mm_node nodes[2];
- int ret;

/* Create a small drm_mm with a couple of nodes and a few holes, and
* check that the debug iterator doesn't explode over a trivial drm_mm.
@@ -277,24 +259,16 @@ static int igt_debug(void *ignored)
memset(nodes, 0, sizeof(nodes));
nodes[0].start = 512;
nodes[0].size = 1024;
- ret = drm_mm_reserve_node(&mm, &nodes[0]);
- if (ret) {
- pr_err("failed to reserve node[0] {start=%lld, size=%lld)\n",
- nodes[0].start, nodes[0].size);
- return ret;
- }
+ KUNIT_ASSERT_FALSE_MSG(test, drm_mm_reserve_node(&mm, &nodes[0]),
+ "failed to reserve node[0] {start=%lld, size=%lld)\n",
+ nodes[0].start, nodes[0].size);

nodes[1].size = 1024;
nodes[1].start = 4096 - 512 - nodes[1].size;
- ret = drm_mm_reserve_node(&mm, &nodes[1]);
- if (ret) {
- pr_err("failed to reserve node[1] {start=%lld, size=%lld)\n",
- nodes[1].start, nodes[1].size);
- return ret;
- }
+ KUNIT_ASSERT_FALSE_MSG(test, drm_mm_reserve_node(&mm, &nodes[1]),
+ "failed to reserve node[0] {start=%lld, size=%lld)\n",
+ nodes[0].start, nodes[0].size);

- show_mm(&mm);
- return 0;
}

static struct drm_mm_node *set_node(struct drm_mm_node *node,
@@ -305,7 +279,7 @@ static struct drm_mm_node *set_node(struct drm_mm_node *node,
return node;
}

-static bool expect_reserve_fail(struct drm_mm *mm, struct drm_mm_node *node)
+static bool expect_reserve_fail(struct kunit *test, struct drm_mm *mm, struct drm_mm_node *node)
{
int err;

@@ -314,17 +288,18 @@ static bool expect_reserve_fail(struct drm_mm *mm, struct drm_mm_node *node)
return true;

if (!err) {
- pr_err("impossible reserve succeeded, node %llu + %llu\n",
- node->start, node->size);
+ KUNIT_FAIL(test, "impossible reserve succeeded, node %llu + %llu\n",
+ node->start, node->size);
drm_mm_remove_node(node);
} else {
- pr_err("impossible reserve failed with wrong error %d [expected %d], node %llu + %llu\n",
+ KUNIT_FAIL(test,
+ "impossible reserve failed with wrong error %d [expected %d], node %llu + %llu\n",
err, -ENOSPC, node->start, node->size);
}
return false;
}

-static bool check_reserve_boundaries(struct drm_mm *mm,
+static bool check_reserve_boundaries(struct kunit *test, struct drm_mm *mm,
unsigned int count,
u64 size)
{
@@ -356,11 +331,9 @@ static bool check_reserve_boundaries(struct drm_mm *mm,
int n;

for (n = 0; n < ARRAY_SIZE(boundaries); n++) {
- if (!expect_reserve_fail(mm,
- set_node(&tmp,
- boundaries[n].start,
+ if (!expect_reserve_fail(test, mm, set_node(&tmp, boundaries[n].start,
boundaries[n].size))) {
- pr_err("boundary[%d:%s] failed, count=%u, size=%lld\n",
+ KUNIT_FAIL(test, "boundary[%d:%s] failed, count=%u, size=%lld\n",
n, boundaries[n].name, count, size);
return false;
}
@@ -369,7 +342,7 @@ static bool check_reserve_boundaries(struct drm_mm *mm,
return true;
}

-static int __igt_reserve(unsigned int count, u64 size)
+static int __igt_reserve(struct kunit *test, unsigned int count, u64 size)
{
DRM_RND_STATE(prng, random_seed);
struct drm_mm mm;
@@ -377,7 +350,7 @@ static int __igt_reserve(unsigned int count, u64 size)
unsigned int *order, n, m, o = 0;
int ret, err;

- /* For exercising drm_mm_reserve_node(), we want to check that
+ /* For exercising drm_mm_reserve_node(struct kunit *test, ), we want to check that
* reservations outside of the drm_mm range are rejected, and to
* overlapping and otherwise already occupied ranges. Afterwards,
* the tree and nodes should be intact.
@@ -392,13 +365,12 @@ static int __igt_reserve(unsigned int count, u64 size)
goto err;

nodes = vzalloc(array_size(count, sizeof(*nodes)));
- if (!nodes)
- goto err_order;
+ KUNIT_ASSERT_TRUE(test, nodes);

ret = -EINVAL;
drm_mm_init(&mm, 0, count * size);

- if (!check_reserve_boundaries(&mm, count, size))
+ if (!check_reserve_boundaries(test, &mm, count, size))
goto out;

for (n = 0; n < count; n++) {
@@ -407,57 +379,53 @@ static int __igt_reserve(unsigned int count, u64 size)

err = drm_mm_reserve_node(&mm, &nodes[n]);
if (err) {
- pr_err("reserve failed, step %d, start %llu\n",
+ KUNIT_FAIL(test, "reserve failed, step %d, start %llu\n",
n, nodes[n].start);
ret = err;
goto out;
}

if (!drm_mm_node_allocated(&nodes[n])) {
- pr_err("reserved node not allocated! step %d, start %llu\n",
+ KUNIT_FAIL(test, "reserved node not allocated! step %d, start %llu\n",
n, nodes[n].start);
goto out;
}

- if (!expect_reserve_fail(&mm, &nodes[n]))
+ if (!expect_reserve_fail(test, &mm, &nodes[n]))
goto out;
}

/* After random insertion the nodes should be in order */
- if (!assert_continuous(&mm, size))
+ if (!assert_continuous(test, &mm, size))
goto out;

/* Repeated use should then fail */
drm_random_reorder(order, count, &prng);
for (n = 0; n < count; n++) {
- if (!expect_reserve_fail(&mm,
- set_node(&tmp, order[n] * size, 1)))
+ if (!expect_reserve_fail(test, &mm, set_node(&tmp, order[n] * size, 1)))
goto out;

/* Remove and reinsert should work */
drm_mm_remove_node(&nodes[order[n]]);
err = drm_mm_reserve_node(&mm, &nodes[order[n]]);
if (err) {
- pr_err("reserve failed, step %d, start %llu\n",
+ KUNIT_FAIL(test, "reserve failed, step %d, start %llu\n",
n, nodes[n].start);
ret = err;
goto out;
}
}

- if (!assert_continuous(&mm, size))
+ if (!assert_continuous(test, &mm, size))
goto out;

/* Overlapping use should then fail */
for (n = 0; n < count; n++) {
- if (!expect_reserve_fail(&mm, set_node(&tmp, 0, size*count)))
+ if (!expect_reserve_fail(test, &mm, set_node(&tmp, 0, size*count)))
goto out;
}
for (n = 0; n < count; n++) {
- if (!expect_reserve_fail(&mm,
- set_node(&tmp,
- size * n,
- size * (count - n))))
+ if (!expect_reserve_fail(test, &mm, set_node(&tmp, size * n, size * (count - n))))
goto out;
}

@@ -472,7 +440,7 @@ static int __igt_reserve(unsigned int count, u64 size)
node = &nodes[order[(o + m) % count]];
err = drm_mm_reserve_node(&mm, node);
if (err) {
- pr_err("reserve failed, step %d/%d, start %llu\n",
+ KUNIT_FAIL(test, "reserve failed, step %d/%d, start %llu\n",
m, n, node->start);
ret = err;
goto out;
@@ -481,7 +449,7 @@ static int __igt_reserve(unsigned int count, u64 size)

o += n;

- if (!assert_continuous(&mm, size))
+ if (!assert_continuous(test, &mm, size))
goto out;
}

@@ -491,41 +459,29 @@ static int __igt_reserve(unsigned int count, u64 size)
drm_mm_remove_node(node);
drm_mm_takedown(&mm);
vfree(nodes);
-err_order:
kfree(order);
err:
return ret;
}

-static int igt_reserve(void *ignored)
+static void igt_mm_reserve(struct kunit *test)
{
const unsigned int count = min_t(unsigned int, BIT(10), max_iterations);
- int n, ret;
+ int n;

for_each_prime_number_from(n, 1, 54) {
u64 size = BIT_ULL(n);

- ret = __igt_reserve(count, size - 1);
- if (ret)
- return ret;
-
- ret = __igt_reserve(count, size);
- if (ret)
- return ret;
-
- ret = __igt_reserve(count, size + 1);
- if (ret)
- return ret;
+ KUNIT_ASSERT_FALSE(test, __igt_reserve(test, count, size - 1));
+ KUNIT_ASSERT_FALSE(test, __igt_reserve(test, count, size));
+ KUNIT_ASSERT_FALSE(test, __igt_reserve(test, count, size + 1));

cond_resched();
}
-
- return 0;
}

-static bool expect_insert(struct drm_mm *mm, struct drm_mm_node *node,
- u64 size, u64 alignment, unsigned long color,
- const struct insert_mode *mode)
+static bool expect_insert(struct kunit *test, struct drm_mm *mm, struct drm_mm_node *node,
+ u64 size, u64 alignment, unsigned long color, const struct insert_mode *mode)
{
int err;

@@ -533,12 +489,13 @@ static bool expect_insert(struct drm_mm *mm, struct drm_mm_node *node,
size, alignment, color,
mode->mode);
if (err) {
- pr_err("insert (size=%llu, alignment=%llu, color=%lu, mode=%s) failed with err=%d\n",
- size, alignment, color, mode->name, err);
+ KUNIT_FAIL(test,
+ "insert (size=%llu, alignment=%llu, color=%lu, mode=%s) failed with err=%d\n",
+ size, alignment, color, mode->name, err);
return false;
}

- if (!assert_node(node, mm, size, alignment, color)) {
+ if (!assert_node(test, node, mm, size, alignment, color)) {
drm_mm_remove_node(node);
return false;
}
@@ -546,7 +503,7 @@ static bool expect_insert(struct drm_mm *mm, struct drm_mm_node *node,
return true;
}

-static bool expect_insert_fail(struct drm_mm *mm, u64 size)
+static bool expect_insert_fail(struct kunit *test, struct drm_mm *mm, u64 size)
{
struct drm_mm_node tmp = {};
int err;
@@ -556,17 +513,18 @@ static bool expect_insert_fail(struct drm_mm *mm, u64 size)
return true;

if (!err) {
- pr_err("impossible insert succeeded, node %llu + %llu\n",
+ KUNIT_FAIL(test, "impossible insert succeeded, node %llu + %llu\n",
tmp.start, tmp.size);
drm_mm_remove_node(&tmp);
} else {
- pr_err("impossible insert failed with wrong error %d [expected %d], size %llu\n",
- err, -ENOSPC, size);
+ KUNIT_FAIL(test,
+ "impossible insert failed with wrong error %d [expected %d], size %llu\n",
+ err, -ENOSPC, size);
}
return false;
}

-static int __igt_insert(unsigned int count, u64 size, bool replace)
+static int __igt_insert(struct kunit *test, unsigned int count, u64 size, bool replace)
{
DRM_RND_STATE(prng, random_seed);
const struct insert_mode *mode;
@@ -582,8 +540,7 @@ static int __igt_insert(unsigned int count, u64 size, bool replace)

ret = -ENOMEM;
nodes = vmalloc(array_size(count, sizeof(*nodes)));
- if (!nodes)
- goto err;
+ KUNIT_ASSERT_TRUE(test, nodes);

order = drm_random_order(count, &prng);
if (!order)
@@ -598,8 +555,8 @@ static int __igt_insert(unsigned int count, u64 size, bool replace)

node = replace ? &tmp : &nodes[n];
memset(node, 0, sizeof(*node));
- if (!expect_insert(&mm, node, size, 0, n, mode)) {
- pr_err("%s insert failed, size %llu step %d\n",
+ if (!expect_insert(test, &mm, node, size, 0, n, mode)) {
+ KUNIT_FAIL(test, "%s insert failed, size %llu step %d\n",
mode->name, size, n);
goto out;
}
@@ -607,32 +564,34 @@ static int __igt_insert(unsigned int count, u64 size, bool replace)
if (replace) {
drm_mm_replace_node(&tmp, &nodes[n]);
if (drm_mm_node_allocated(&tmp)) {
- pr_err("replaced old-node still allocated! step %d\n",
- n);
+ KUNIT_FAIL(test,
+ "replaced old-node still allocated! step %d\n",
+ n);
goto out;
}

- if (!assert_node(&nodes[n], &mm, size, 0, n)) {
- pr_err("replaced node did not inherit parameters, size %llu step %d\n",
- size, n);
+ if (!assert_node(test, &nodes[n], &mm, size, 0, n)) {
+ KUNIT_FAIL(test,
+ "replaced node did not inherit parameters, size %llu step %d\n",
+ size, n);
goto out;
}

if (tmp.start != nodes[n].start) {
- pr_err("replaced node mismatch location expected [%llx + %llx], found [%llx + %llx]\n",
- tmp.start, size,
- nodes[n].start, nodes[n].size);
+ KUNIT_FAIL(test,
+ "replaced node mismatch location expected [%llx + %llx], found [%llx + %llx]\n",
+ tmp.start, size, nodes[n].start, nodes[n].size);
goto out;
}
}
}

/* After random insertion the nodes should be in order */
- if (!assert_continuous(&mm, size))
+ if (!assert_continuous(test, &mm, size))
goto out;

/* Repeated use should then fail */
- if (!expect_insert_fail(&mm, size))
+ if (!expect_insert_fail(test, &mm, size))
goto out;

/* Remove one and reinsert, as the only hole it should refill itself */
@@ -640,19 +599,20 @@ static int __igt_insert(unsigned int count, u64 size, bool replace)
u64 addr = nodes[n].start;

drm_mm_remove_node(&nodes[n]);
- if (!expect_insert(&mm, &nodes[n], size, 0, n, mode)) {
- pr_err("%s reinsert failed, size %llu step %d\n",
+ if (!expect_insert(test, &mm, &nodes[n], size, 0, n, mode)) {
+ KUNIT_FAIL(test, "%s reinsert failed, size %llu step %d\n",
mode->name, size, n);
goto out;
}

if (nodes[n].start != addr) {
- pr_err("%s reinsert node moved, step %d, expected %llx, found %llx\n",
- mode->name, n, addr, nodes[n].start);
+ KUNIT_FAIL(test,
+ "%s reinsert node moved, step %d, expected %llx, found %llx\n",
+ mode->name, n, addr, nodes[n].start);
goto out;
}

- if (!assert_continuous(&mm, size))
+ if (!assert_continuous(test, &mm, size))
goto out;
}

@@ -665,19 +625,20 @@ static int __igt_insert(unsigned int count, u64 size, bool replace)

for (m = 0; m < n; m++) {
node = &nodes[order[(o + m) % count]];
- if (!expect_insert(&mm, node, size, 0, n, mode)) {
- pr_err("%s multiple reinsert failed, size %llu step %d\n",
- mode->name, size, n);
+ if (!expect_insert(test, &mm, node, size, 0, n, mode)) {
+ KUNIT_FAIL(test,
+ "%s multiple reinsert failed, size %llu step %d\n",
+ mode->name, size, n);
goto out;
}
}

o += n;

- if (!assert_continuous(&mm, size))
+ if (!assert_continuous(test, &mm, size))
goto out;

- if (!expect_insert_fail(&mm, size))
+ if (!expect_insert_fail(test, &mm, size))
goto out;
}

@@ -696,42 +657,30 @@ static int __igt_insert(unsigned int count, u64 size, bool replace)
kfree(order);
err_nodes:
vfree(nodes);
-err:
return ret;
}

-static int igt_insert(void *ignored)
+static void igt_mm_insert(struct kunit *test)
{
const unsigned int count = min_t(unsigned int, BIT(10), max_iterations);
unsigned int n;
- int ret;

for_each_prime_number_from(n, 1, 54) {
u64 size = BIT_ULL(n);

- ret = __igt_insert(count, size - 1, false);
- if (ret)
- return ret;
-
- ret = __igt_insert(count, size, false);
- if (ret)
- return ret;
-
- ret = __igt_insert(count, size + 1, false);
- if (ret)
- return ret;
+ KUNIT_ASSERT_FALSE(test, __igt_insert(test, count, size - 1, false));
+ KUNIT_ASSERT_FALSE(test, __igt_insert(test, count, size, false));
+ KUNIT_ASSERT_FALSE(test, __igt_insert(test, count, size + 1, false));

cond_resched();
}

- return 0;
}

-static int igt_replace(void *ignored)
+static void igt_mm_replace(struct kunit *test)
{
const unsigned int count = min_t(unsigned int, BIT(10), max_iterations);
unsigned int n;
- int ret;

/* Reuse igt_insert to exercise replacement by inserting a dummy node,
* then replacing it with the intended node. We want to check that
@@ -742,28 +691,17 @@ static int igt_replace(void *ignored)
for_each_prime_number_from(n, 1, 54) {
u64 size = BIT_ULL(n);

- ret = __igt_insert(count, size - 1, true);
- if (ret)
- return ret;
-
- ret = __igt_insert(count, size, true);
- if (ret)
- return ret;
-
- ret = __igt_insert(count, size + 1, true);
- if (ret)
- return ret;
+ KUNIT_ASSERT_FALSE(test, __igt_insert(test, count, size - 1, true));
+ KUNIT_ASSERT_FALSE(test, __igt_insert(test, count, size, true));
+ KUNIT_ASSERT_FALSE(test, __igt_insert(test, count, size + 1, true));

cond_resched();
}
-
- return 0;
}

-static bool expect_insert_in_range(struct drm_mm *mm, struct drm_mm_node *node,
+static bool expect_insert_in_range(struct kunit *test, struct drm_mm *mm, struct drm_mm_node *node,
u64 size, u64 alignment, unsigned long color,
- u64 range_start, u64 range_end,
- const struct insert_mode *mode)
+ u64 range_start, u64 range_end, const struct insert_mode *mode)
{
int err;

@@ -772,13 +710,14 @@ static bool expect_insert_in_range(struct drm_mm *mm, struct drm_mm_node *node,
range_start, range_end,
mode->mode);
if (err) {
- pr_err("insert (size=%llu, alignment=%llu, color=%lu, mode=%s) nto range [%llx, %llx] failed with err=%d\n",
- size, alignment, color, mode->name,
- range_start, range_end, err);
+ KUNIT_FAIL(test,
+ "insert (size=%llu, alignment=%llu, color=%lu, mode=%s) nto range [%llx, %llx] failed with err=%d\n",
+ size, alignment, color, mode->name,
+ range_start, range_end, err);
return false;
}

- if (!assert_node(node, mm, size, alignment, color)) {
+ if (!assert_node(test, node, mm, size, alignment, color)) {
drm_mm_remove_node(node);
return false;
}
@@ -786,67 +725,63 @@ static bool expect_insert_in_range(struct drm_mm *mm, struct drm_mm_node *node,
return true;
}

-static bool expect_insert_in_range_fail(struct drm_mm *mm,
- u64 size,
- u64 range_start,
- u64 range_end)
+static bool expect_insert_in_range_fail(struct kunit *test, struct drm_mm *mm,
+ u64 size, u64 range_start, u64 range_end)
{
struct drm_mm_node tmp = {};
int err;

- err = drm_mm_insert_node_in_range(mm, &tmp,
- size, 0, 0,
- range_start, range_end,
+ err = drm_mm_insert_node_in_range(mm, &tmp, size, 0, 0, range_start, range_end,
0);
if (likely(err == -ENOSPC))
return true;

if (!err) {
- pr_err("impossible insert succeeded, node %llx + %llu, range [%llx, %llx]\n",
- tmp.start, tmp.size, range_start, range_end);
+ KUNIT_FAIL(test,
+ "impossible insert succeeded, node %llx + %llu, range [%llx, %llx]\n",
+ tmp.start, tmp.size, range_start, range_end);
drm_mm_remove_node(&tmp);
} else {
- pr_err("impossible insert failed with wrong error %d [expected %d], size %llu, range [%llx, %llx]\n",
- err, -ENOSPC, size, range_start, range_end);
+ KUNIT_FAIL(test,
+ "impossible insert failed with wrong error %d [expected %d], size %llu, range [%llx, %llx]\n",
+ err, -ENOSPC, size, range_start, range_end);
}

return false;
}

-static bool assert_contiguous_in_range(struct drm_mm *mm,
- u64 size,
- u64 start,
- u64 end)
+static bool assert_contiguous_in_range(struct kunit *test, struct drm_mm *mm,
+ u64 size, u64 start, u64 end)
{
struct drm_mm_node *node;
unsigned int n;

- if (!expect_insert_in_range_fail(mm, size, start, end))
+ if (!expect_insert_in_range_fail(test, mm, size, start, end))
return false;

n = div64_u64(start + size - 1, size);
drm_mm_for_each_node(node, mm) {
if (node->start < start || node->start + node->size > end) {
- pr_err("node %d out of range, address [%llx + %llu], range [%llx, %llx]\n",
- n, node->start, node->start + node->size, start, end);
+ KUNIT_FAIL(test,
+ "node %d out of range, address [%llx + %llu], range [%llx, %llx]\n",
+ n, node->start, node->start + node->size, start, end);
return false;
}

if (node->start != n * size) {
- pr_err("node %d out of order, expected start %llx, found %llx\n",
+ KUNIT_FAIL(test, "node %d out of order, expected start %llx, found %llx\n",
n, n * size, node->start);
return false;
}

if (node->size != size) {
- pr_err("node %d has wrong size, expected size %llx, found %llx\n",
+ KUNIT_FAIL(test, "node %d has wrong size, expected size %llx, found %llx\n",
n, size, node->size);
return false;
}

- if (drm_mm_hole_follows(node) &&
- drm_mm_hole_node_end(node) < end) {
- pr_err("node %d is followed by a hole!\n", n);
+ if (drm_mm_hole_follows(node) && drm_mm_hole_node_end(node) < end) {
+ KUNIT_FAIL(test, "node %d is followed by a hole!\n", n);
return false;
}

@@ -856,7 +791,7 @@ static bool assert_contiguous_in_range(struct drm_mm *mm,
if (start > 0) {
node = __drm_mm_interval_first(mm, 0, start - 1);
if (drm_mm_node_allocated(node)) {
- pr_err("node before start: node=%llx+%llu, start=%llx\n",
+ KUNIT_FAIL(test, "node before start: node=%llx+%llu, start=%llx\n",
node->start, node->size, start);
return false;
}
@@ -865,7 +800,7 @@ static bool assert_contiguous_in_range(struct drm_mm *mm,
if (end < U64_MAX) {
node = __drm_mm_interval_first(mm, end, U64_MAX);
if (drm_mm_node_allocated(node)) {
- pr_err("node after end: node=%llx+%llu, end=%llx\n",
+ KUNIT_FAIL(test, "node after end: node=%llx+%llu, end=%llx\n",
node->start, node->size, end);
return false;
}
@@ -874,7 +809,7 @@ static bool assert_contiguous_in_range(struct drm_mm *mm,
return true;
}

-static int __igt_insert_range(unsigned int count, u64 size, u64 start, u64 end)
+static int __igt_insert_range(struct kunit *test, unsigned int count, u64 size, u64 start, u64 end)
{
const struct insert_mode *mode;
struct drm_mm mm;
@@ -886,14 +821,13 @@ static int __igt_insert_range(unsigned int count, u64 size, u64 start, u64 end)
DRM_MM_BUG_ON(!size);
DRM_MM_BUG_ON(end <= start);

- /* Very similar to __igt_insert(), but now instead of populating the
+ /* Very similar to __igt_insert(struct kunit *test, ), but now instead of populating the
* full range of the drm_mm, we try to fill a small portion of it.
*/

ret = -ENOMEM;
nodes = vzalloc(array_size(count, sizeof(*nodes)));
- if (!nodes)
- goto err;
+ KUNIT_ASSERT_TRUE(test, nodes);

ret = -EINVAL;
drm_mm_init(&mm, 0, count * size);
@@ -903,20 +837,19 @@ static int __igt_insert_range(unsigned int count, u64 size, u64 start, u64 end)

for (mode = insert_modes; mode->name; mode++) {
for (n = start_n; n <= end_n; n++) {
- if (!expect_insert_in_range(&mm, &nodes[n],
- size, size, n,
- start, end, mode)) {
- pr_err("%s insert failed, size %llu, step %d [%d, %d], range [%llx, %llx]\n",
- mode->name, size, n,
- start_n, end_n,
- start, end);
+ if (!expect_insert_in_range(test, &mm, &nodes[n], size, size, n,
+ start, end, mode)) {
+ KUNIT_FAIL(test,
+ "%s insert failed, size %llu, step %d [%d, %d], range [%llx, %llx]\n",
+ mode->name, size, n, start_n, end_n, start, end);
goto out;
}
}

- if (!assert_contiguous_in_range(&mm, size, start, end)) {
- pr_err("%s: range [%llx, %llx] not full after initialisation, size=%llu\n",
- mode->name, start, end, size);
+ if (!assert_contiguous_in_range(test, &mm, size, start, end)) {
+ KUNIT_FAIL(test,
+ "%s: range [%llx, %llx] not full after initialisation, size=%llu\n",
+ mode->name, start, end, size);
goto out;
}

@@ -925,23 +858,24 @@ static int __igt_insert_range(unsigned int count, u64 size, u64 start, u64 end)
u64 addr = nodes[n].start;

drm_mm_remove_node(&nodes[n]);
- if (!expect_insert_in_range(&mm, &nodes[n],
- size, size, n,
+ if (!expect_insert_in_range(test, &mm, &nodes[n], size, size, n,
start, end, mode)) {
- pr_err("%s reinsert failed, step %d\n", mode->name, n);
+ KUNIT_FAIL(test, "%s reinsert failed, step %d\n", mode->name, n);
goto out;
}

if (nodes[n].start != addr) {
- pr_err("%s reinsert node moved, step %d, expected %llx, found %llx\n",
- mode->name, n, addr, nodes[n].start);
+ KUNIT_FAIL(test,
+ "%s reinsert node moved, step %d, expected %llx, found %llx\n",
+ mode->name, n, addr, nodes[n].start);
goto out;
}
}

- if (!assert_contiguous_in_range(&mm, size, start, end)) {
- pr_err("%s: range [%llx, %llx] not full after reinsertion, size=%llu\n",
- mode->name, start, end, size);
+ if (!assert_contiguous_in_range(test, &mm, size, start, end)) {
+ KUNIT_FAIL(test,
+ "%s: range [%llx, %llx] not full after reinsertion, size=%llu\n",
+ mode->name, start, end, size);
goto out;
}

@@ -958,11 +892,10 @@ static int __igt_insert_range(unsigned int count, u64 size, u64 start, u64 end)
drm_mm_remove_node(node);
drm_mm_takedown(&mm);
vfree(nodes);
-err:
return ret;
}

-static int insert_outside_range(void)
+static int insert_outside_range(struct kunit *test)
{
struct drm_mm mm;
const unsigned int start = 1024;
@@ -971,81 +904,57 @@ static int insert_outside_range(void)

drm_mm_init(&mm, start, size);

- if (!expect_insert_in_range_fail(&mm, 1, 0, start))
+ if (!expect_insert_in_range_fail(test, &mm, 1, 0, start))
return -EINVAL;

- if (!expect_insert_in_range_fail(&mm, size,
+ if (!expect_insert_in_range_fail(test, &mm, size,
start - size/2, start + (size+1)/2))
return -EINVAL;

- if (!expect_insert_in_range_fail(&mm, size,
+ if (!expect_insert_in_range_fail(test, &mm, size,
end - (size+1)/2, end + size/2))
return -EINVAL;

- if (!expect_insert_in_range_fail(&mm, 1, end, end + size))
+ if (!expect_insert_in_range_fail(test, &mm, 1, end, end + size))
return -EINVAL;

drm_mm_takedown(&mm);
return 0;
}

-static int igt_insert_range(void *ignored)
+static void igt_mm_insert_range(struct kunit *test)
{
const unsigned int count = min_t(unsigned int, BIT(13), max_iterations);
unsigned int n;
- int ret;

/* Check that requests outside the bounds of drm_mm are rejected. */
- ret = insert_outside_range();
- if (ret)
- return ret;
+ KUNIT_ASSERT_FALSE(test, insert_outside_range(test));

for_each_prime_number_from(n, 1, 50) {
const u64 size = BIT_ULL(n);
const u64 max = count * size;

- ret = __igt_insert_range(count, size, 0, max);
- if (ret)
- return ret;
-
- ret = __igt_insert_range(count, size, 1, max);
- if (ret)
- return ret;
-
- ret = __igt_insert_range(count, size, 0, max - 1);
- if (ret)
- return ret;
-
- ret = __igt_insert_range(count, size, 0, max/2);
- if (ret)
- return ret;
-
- ret = __igt_insert_range(count, size, max/2, max);
- if (ret)
- return ret;
-
- ret = __igt_insert_range(count, size, max/4+1, 3*max/4-1);
- if (ret)
- return ret;
+ KUNIT_ASSERT_FALSE(test, __igt_insert_range(test, count, size, 0, max));
+ KUNIT_ASSERT_FALSE(test, __igt_insert_range(test, count, size, 1, max));
+ KUNIT_ASSERT_FALSE(test, __igt_insert_range(test, count, size, 0, max - 1));
+ KUNIT_ASSERT_FALSE(test, __igt_insert_range(test, count, size, 0, max/2));
+ KUNIT_ASSERT_FALSE(test, __igt_insert_range(test, count, size, max/2, max/2));
+ KUNIT_ASSERT_FALSE(test, __igt_insert_range(test, count, size, max/4+1, 3*max/4-1));

cond_resched();
}
-
- return 0;
}

-static int prepare_igt_frag(struct drm_mm *mm,
- struct drm_mm_node *nodes,
- unsigned int num_insert,
+static int prepare_igt_frag(struct kunit *test, struct drm_mm *mm,
+ struct drm_mm_node *nodes, unsigned int num_insert,
const struct insert_mode *mode)
{
unsigned int size = 4096;
unsigned int i;

for (i = 0; i < num_insert; i++) {
- if (!expect_insert(mm, &nodes[i], size, 0, i,
- mode) != 0) {
- pr_err("%s insert failed\n", mode->name);
+ if (!expect_insert(test, mm, &nodes[i], size, 0, i, mode) != 0) {
+ KUNIT_FAIL(test, "%s insert failed\n", mode->name);
return -EINVAL;
}
}
@@ -1060,9 +969,8 @@ static int prepare_igt_frag(struct drm_mm *mm,

}

-static u64 get_insert_time(struct drm_mm *mm,
- unsigned int num_insert,
- struct drm_mm_node *nodes,
+static u64 get_insert_time(struct kunit *test, struct drm_mm *mm,
+ unsigned int num_insert, struct drm_mm_node *nodes,
const struct insert_mode *mode)
{
unsigned int size = 8192;
@@ -1071,8 +979,8 @@ static u64 get_insert_time(struct drm_mm *mm,

start = ktime_get();
for (i = 0; i < num_insert; i++) {
- if (!expect_insert(mm, &nodes[i], size, 0, i, mode) != 0) {
- pr_err("%s insert failed\n", mode->name);
+ if (!expect_insert(test, mm, &nodes[i], size, 0, i, mode) != 0) {
+ KUNIT_FAIL(test, "%s insert failed\n", mode->name);
return 0;
}
}
@@ -1080,27 +988,25 @@ static u64 get_insert_time(struct drm_mm *mm,
return ktime_to_ns(ktime_sub(ktime_get(), start));
}

-static int igt_frag(void *ignored)
+static void igt_mm_frag(struct kunit *test)
{
struct drm_mm mm;
const struct insert_mode *mode;
struct drm_mm_node *nodes, *node, *next;
unsigned int insert_size = 10000;
unsigned int scale_factor = 4;
- int ret = -EINVAL;

/* We need 4 * insert_size nodes to hold intermediate allocated
* drm_mm nodes.
- * 1 times for prepare_igt_frag()
- * 1 times for get_insert_time()
- * 2 times for get_insert_time()
+ * 1 times for prepare_igt_frag(struct kunit *test, )
+ * 1 times for get_insert_time(struct kunit *test, )
+ * 2 times for get_insert_time(struct kunit *test, )
*/
nodes = vzalloc(array_size(insert_size * 4, sizeof(*nodes)));
- if (!nodes)
- return -ENOMEM;
+ KUNIT_ASSERT_TRUE(test, nodes);

/* For BOTTOMUP and TOPDOWN, we first fragment the
- * address space using prepare_igt_frag() and then try to verify
+ * address space using prepare_igt_frag(struct kunit *test, ) and then try to verify
* that that insertions scale quadratically from 10k to 20k insertions
*/
drm_mm_init(&mm, 1, U64_MAX - 2);
@@ -1111,28 +1017,25 @@ static int igt_frag(void *ignored)
mode->mode != DRM_MM_INSERT_HIGH)
continue;

- ret = prepare_igt_frag(&mm, nodes, insert_size, mode);
- if (ret)
+ if (prepare_igt_frag(test, &mm, nodes, insert_size, mode))
goto err;

- insert_time1 = get_insert_time(&mm, insert_size,
+ insert_time1 = get_insert_time(test, &mm, insert_size,
nodes + insert_size, mode);
if (insert_time1 == 0)
goto err;

- insert_time2 = get_insert_time(&mm, (insert_size * 2),
+ insert_time2 = get_insert_time(test, &mm, (insert_size * 2),
nodes + insert_size * 2, mode);
if (insert_time2 == 0)
goto err;

- pr_info("%s fragmented insert of %u and %u insertions took %llu and %llu nsecs\n",
- mode->name, insert_size, insert_size * 2,
- insert_time1, insert_time2);
+ kunit_info(test, "%s fragmented insert of %u and %u insertions took %llu and %llu nsecs\n",
+ mode->name, insert_size, insert_size * 2, insert_time1, insert_time2);

if (insert_time2 > (scale_factor * insert_time1)) {
- pr_err("%s fragmented insert took %llu nsecs more\n",
- mode->name,
- insert_time2 - (scale_factor * insert_time1));
+ KUNIT_FAIL(test, "%s fragmented insert took %llu nsecs more\n",
+ mode->name, insert_time2 - (scale_factor * insert_time1));
goto err;
}

@@ -1140,24 +1043,20 @@ static int igt_frag(void *ignored)
drm_mm_remove_node(node);
}

- ret = 0;
err:
drm_mm_for_each_node_safe(node, next, &mm)
drm_mm_remove_node(node);
drm_mm_takedown(&mm);
vfree(nodes);
-
- return ret;
}

-static int igt_align(void *ignored)
+static void igt_mm_align(struct kunit *test)
{
const struct insert_mode *mode;
const unsigned int max_count = min(8192u, max_prime);
struct drm_mm mm;
struct drm_mm_node *nodes, *node, *next;
unsigned int prime;
- int ret = -EINVAL;

/* For each of the possible insertion modes, we pick a few
* arbitrary alignments and check that the inserted node
@@ -1165,8 +1064,7 @@ static int igt_align(void *ignored)
*/

nodes = vzalloc(array_size(max_count, sizeof(*nodes)));
- if (!nodes)
- goto err;
+ KUNIT_ASSERT_TRUE(test, nodes);

drm_mm_init(&mm, 1, U64_MAX - 2);

@@ -1176,10 +1074,8 @@ static int igt_align(void *ignored)
for_each_prime_number_from(prime, 1, max_count) {
u64 size = next_prime_number(prime);

- if (!expect_insert(&mm, &nodes[i],
- size, prime, i,
- mode)) {
- pr_err("%s insert failed with alignment=%d",
+ if (!expect_insert(test, &mm, &nodes[i], size, prime, i, mode)) {
+ KUNIT_FAIL(test, "%s insert failed with alignment=%d",
mode->name, prime);
goto out;
}
@@ -1194,22 +1090,18 @@ static int igt_align(void *ignored)
cond_resched();
}

- ret = 0;
out:
drm_mm_for_each_node_safe(node, next, &mm)
drm_mm_remove_node(node);
drm_mm_takedown(&mm);
vfree(nodes);
-err:
- return ret;
}

-static int igt_align_pot(int max)
+static void igt_align_pot(struct kunit *test, int max)
{
struct drm_mm mm;
struct drm_mm_node *node, *next;
int bit;
- int ret = -EINVAL;

/* Check that we can align to the full u64 address space */

@@ -1220,51 +1112,45 @@ static int igt_align_pot(int max)

node = kzalloc(sizeof(*node), GFP_KERNEL);
if (!node) {
- ret = -ENOMEM;
+ KUNIT_FAIL(test, "failed to allocate node");
goto out;
}

align = BIT_ULL(bit);
size = BIT_ULL(bit-1) + 1;
- if (!expect_insert(&mm, node,
- size, align, bit,
- &insert_modes[0])) {
- pr_err("insert failed with alignment=%llx [%d]",
- align, bit);
+ if (!expect_insert(test, &mm, node, size, align, bit, &insert_modes[0])) {
+ KUNIT_FAIL(test, "insert failed with alignment=%llx [%d]", align, bit);
goto out;
}

cond_resched();
}

- ret = 0;
out:
drm_mm_for_each_node_safe(node, next, &mm) {
drm_mm_remove_node(node);
kfree(node);
}
drm_mm_takedown(&mm);
- return ret;
}

-static int igt_align32(void *ignored)
+static void igt_mm_align32(struct kunit *test)
{
- return igt_align_pot(32);
+ igt_align_pot(test, 32);
}

-static int igt_align64(void *ignored)
+static void igt_mm_align64(struct kunit *test)
{
- return igt_align_pot(64);
+ igt_align_pot(test, 64);
}

-static void show_scan(const struct drm_mm_scan *scan)
+static void show_scan(struct kunit *test, const struct drm_mm_scan *scan)
{
- pr_info("scan: hit [%llx, %llx], size=%lld, align=%lld, color=%ld\n",
- scan->hit_start, scan->hit_end,
- scan->size, scan->alignment, scan->color);
+ kunit_info(test, "scan: hit [%llx, %llx], size=%lld, align=%lld, color=%ld\n",
+ scan->hit_start, scan->hit_end, scan->size, scan->alignment, scan->color);
}

-static void show_holes(const struct drm_mm *mm, int count)
+static void show_holes(struct kunit *test, const struct drm_mm *mm, int count)
{
u64 hole_start, hole_end;
struct drm_mm_node *hole;
@@ -1274,19 +1160,15 @@ static void show_holes(const struct drm_mm *mm, int count)
const char *node1 = NULL, *node2 = NULL;

if (drm_mm_node_allocated(hole))
- node1 = kasprintf(GFP_KERNEL,
- "[%llx + %lld, color=%ld], ",
+ node1 = kasprintf(GFP_KERNEL, "[%llx + %lld, color=%ld], ",
hole->start, hole->size, hole->color);

if (drm_mm_node_allocated(next))
- node2 = kasprintf(GFP_KERNEL,
- ", [%llx + %lld, color=%ld]",
+ node2 = kasprintf(GFP_KERNEL, ", [%llx + %lld, color=%ld]",
next->start, next->size, next->color);

- pr_info("%sHole [%llx - %llx, size %lld]%s\n",
- node1,
- hole_start, hole_end, hole_end - hole_start,
- node2);
+ kunit_info(test, "%sHole [%llx - %llx, size %lld]%s\n", node1,
+ hole_start, hole_end, hole_end - hole_start, node2);

kfree(node2);
kfree(node1);
@@ -1301,12 +1183,9 @@ struct evict_node {
struct list_head link;
};

-static bool evict_nodes(struct drm_mm_scan *scan,
- struct evict_node *nodes,
- unsigned int *order,
- unsigned int count,
- bool use_color,
- struct list_head *evict_list)
+static bool evict_nodes(struct kunit *test, struct drm_mm_scan *scan,
+ struct evict_node *nodes, unsigned int *order, unsigned int count,
+ bool use_color, struct list_head *evict_list)
{
struct evict_node *e, *en;
unsigned int i;
@@ -1322,8 +1201,9 @@ static bool evict_nodes(struct drm_mm_scan *scan,
list_del(&e->link);
}
if (list_empty(evict_list)) {
- pr_err("Failed to find eviction: size=%lld [avail=%d], align=%lld (color=%lu)\n",
- scan->size, count, scan->alignment, scan->color);
+ KUNIT_FAIL(test,
+ "Failed to find eviction: size=%lld [avail=%d], align=%lld (color=%lu)\n",
+ scan->size, count, scan->alignment, scan->color);
return false;
}

@@ -1340,7 +1220,8 @@ static bool evict_nodes(struct drm_mm_scan *scan,
}
} else {
if (drm_mm_scan_color_evict(scan)) {
- pr_err("drm_mm_scan_color_evict unexpectedly reported overlapping nodes!\n");
+ KUNIT_FAIL(test,
+ "drm_mm_scan_color_evict unexpectedly reported overlapping nodes!\n");
return false;
}
}
@@ -1348,9 +1229,8 @@ static bool evict_nodes(struct drm_mm_scan *scan,
return true;
}

-static bool evict_nothing(struct drm_mm *mm,
- unsigned int total_size,
- struct evict_node *nodes)
+static bool evict_nothing(struct kunit *test, struct drm_mm *mm,
+ unsigned int total_size, struct evict_node *nodes)
{
struct drm_mm_scan scan;
LIST_HEAD(evict_list);
@@ -1371,7 +1251,7 @@ static bool evict_nothing(struct drm_mm *mm,
e = &nodes[n];

if (!drm_mm_node_allocated(&e->node)) {
- pr_err("node[%d] no longer allocated!\n", n);
+ KUNIT_FAIL(test, "node[%d] no longer allocated!\n", n);
return false;
}

@@ -1387,17 +1267,16 @@ static bool evict_nothing(struct drm_mm *mm,
e = &nodes[n];

if (!e->link.next) {
- pr_err("node[%d] no longer connected!\n", n);
+ KUNIT_FAIL(test, "node[%d] no longer connected!\n", n);
return false;
}
}

- return assert_continuous(mm, nodes[0].node.size);
+ return assert_continuous(test, mm, nodes[0].node.size);
}

-static bool evict_everything(struct drm_mm *mm,
- unsigned int total_size,
- struct evict_node *nodes)
+static bool evict_everything(struct kunit *test, struct drm_mm *mm,
+ unsigned int total_size, struct evict_node *nodes)
{
struct drm_mm_scan scan;
LIST_HEAD(evict_list);
@@ -1417,7 +1296,7 @@ static bool evict_everything(struct drm_mm *mm,
list_for_each_entry(e, &evict_list, link) {
if (!drm_mm_scan_remove_block(&scan, &e->node)) {
if (!err) {
- pr_err("Node %lld not marked for eviction!\n",
+ KUNIT_FAIL(test, "Node %lld not marked for eviction!\n",
e->node.start);
err = -EINVAL;
}
@@ -1429,29 +1308,25 @@ static bool evict_everything(struct drm_mm *mm,
list_for_each_entry(e, &evict_list, link)
drm_mm_remove_node(&e->node);

- if (!assert_one_hole(mm, 0, total_size))
+ if (!assert_one_hole(test, mm, 0, total_size))
return false;

list_for_each_entry(e, &evict_list, link) {
err = drm_mm_reserve_node(mm, &e->node);
if (err) {
- pr_err("Failed to reinsert node after eviction: start=%llx\n",
+ KUNIT_FAIL(test, "Failed to reinsert node after eviction: start=%llx\n",
e->node.start);
return false;
}
}

- return assert_continuous(mm, nodes[0].node.size);
+ return assert_continuous(test, mm, nodes[0].node.size);
}

-static int evict_something(struct drm_mm *mm,
- u64 range_start, u64 range_end,
- struct evict_node *nodes,
- unsigned int *order,
- unsigned int count,
- unsigned int size,
- unsigned int alignment,
- const struct insert_mode *mode)
+static int evict_something(struct kunit *test, struct drm_mm *mm,
+ u64 range_start, u64 range_end, struct evict_node *nodes,
+ unsigned int *order, unsigned int count, unsigned int size,
+ unsigned int alignment, const struct insert_mode *mode)
{
struct drm_mm_scan scan;
LIST_HEAD(evict_list);
@@ -1459,38 +1334,35 @@ static int evict_something(struct drm_mm *mm,
struct drm_mm_node tmp;
int err;

- drm_mm_scan_init_with_range(&scan, mm,
- size, alignment, 0,
- range_start, range_end,
- mode->mode);
- if (!evict_nodes(&scan,
- nodes, order, count, false,
- &evict_list))
+ drm_mm_scan_init_with_range(&scan, mm, size, alignment, 0, range_start,
+ range_end, mode->mode);
+ if (!evict_nodes(test, &scan, nodes, order, count, false, &evict_list))
return -EINVAL;

memset(&tmp, 0, sizeof(tmp));
err = drm_mm_insert_node_generic(mm, &tmp, size, alignment, 0,
DRM_MM_INSERT_EVICT);
if (err) {
- pr_err("Failed to insert into eviction hole: size=%d, align=%d\n",
+ KUNIT_FAIL(test, "Failed to insert into eviction hole: size=%d, align=%d\n",
size, alignment);
- show_scan(&scan);
- show_holes(mm, 3);
+ show_scan(test, &scan);
+ show_holes(test, mm, 3);
return err;
}

if (tmp.start < range_start || tmp.start + tmp.size > range_end) {
- pr_err("Inserted [address=%llu + %llu] did not fit into the request range [%llu, %llu]\n",
- tmp.start, tmp.size, range_start, range_end);
+ KUNIT_FAIL(test,
+ "Inserted [address=%llu + %llu] did not fit into the request range [%llu, %llu]\n",
+ tmp.start, tmp.size, range_start, range_end);
err = -EINVAL;
}

- if (!assert_node(&tmp, mm, size, alignment, 0) ||
+ if (!assert_node(test, &tmp, mm, size, alignment, 0) ||
drm_mm_hole_follows(&tmp)) {
- pr_err("Inserted did not fill the eviction hole: size=%lld [%d], align=%d [rem=%lld], start=%llx, hole-follows?=%d\n",
- tmp.size, size,
- alignment, misalignment(&tmp, alignment),
- tmp.start, drm_mm_hole_follows(&tmp));
+ KUNIT_FAIL(test,
+ "Inserted did not fill the eviction hole: size=%lld [%d], align=%d [rem=%lld], start=%llx, hole-follows?=%d\n",
+ tmp.size, size, alignment, misalignment(&tmp, alignment),
+ tmp.start, drm_mm_hole_follows(&tmp));
err = -EINVAL;
}

@@ -1501,21 +1373,21 @@ static int evict_something(struct drm_mm *mm,
list_for_each_entry(e, &evict_list, link) {
err = drm_mm_reserve_node(mm, &e->node);
if (err) {
- pr_err("Failed to reinsert node after eviction: start=%llx\n",
+ KUNIT_FAIL(test, "Failed to reinsert node after eviction: start=%llx\n",
e->node.start);
return err;
}
}

- if (!assert_continuous(mm, nodes[0].node.size)) {
- pr_err("range is no longer continuous\n");
+ if (!assert_continuous(test, mm, nodes[0].node.size)) {
+ KUNIT_FAIL(test, "range is no longer continuous\n");
return -EINVAL;
}

return 0;
}

-static int igt_evict(void *ignored)
+static void igt_mm_evict(struct kunit *test)
{
DRM_RND_STATE(prng, random_seed);
const unsigned int size = 8192;
@@ -1524,7 +1396,6 @@ static int igt_evict(void *ignored)
struct evict_node *nodes;
struct drm_mm_node *node, *next;
unsigned int *order, n;
- int ret, err;

/* Here we populate a full drm_mm and then try and insert a new node
* by evicting other nodes in a random order. The drm_mm_scan should
@@ -1533,61 +1404,48 @@ static int igt_evict(void *ignored)
* sizes to try and stress the hole finder.
*/

- ret = -ENOMEM;
nodes = vzalloc(array_size(size, sizeof(*nodes)));
- if (!nodes)
- goto err;
+ KUNIT_ASSERT_TRUE(test, nodes);

order = drm_random_order(size, &prng);
if (!order)
goto err_nodes;

- ret = -EINVAL;
drm_mm_init(&mm, 0, size);
for (n = 0; n < size; n++) {
- err = drm_mm_insert_node(&mm, &nodes[n].node, 1);
- if (err) {
- pr_err("insert failed, step %d\n", n);
- ret = err;
+ if (drm_mm_insert_node(&mm, &nodes[n].node, 1)) {
+ KUNIT_FAIL(test, "insert failed, step %d\n", n);
goto out;
}
}

/* First check that using the scanner doesn't break the mm */
- if (!evict_nothing(&mm, size, nodes)) {
- pr_err("evict_nothing() failed\n");
+ if (!evict_nothing(test, &mm, size, nodes)) {
+ KUNIT_FAIL(test, "evict_nothing() failed\n");
goto out;
}
- if (!evict_everything(&mm, size, nodes)) {
- pr_err("evict_everything() failed\n");
+ if (!evict_everything(test, &mm, size, nodes)) {
+ KUNIT_FAIL(test, "evict_everything() failed\n");
goto out;
}

for (mode = evict_modes; mode->name; mode++) {
for (n = 1; n <= size; n <<= 1) {
drm_random_reorder(order, size, &prng);
- err = evict_something(&mm, 0, U64_MAX,
- nodes, order, size,
- n, 1,
- mode);
- if (err) {
- pr_err("%s evict_something(size=%u) failed\n",
+ if (evict_something(test, &mm, 0, U64_MAX, nodes, order, size, n, 1, mode)) {
+ KUNIT_FAIL(test, "%s evict_something(size=%u) failed\n",
mode->name, n);
- ret = err;
goto out;
}
}

for (n = 1; n < size; n <<= 1) {
drm_random_reorder(order, size, &prng);
- err = evict_something(&mm, 0, U64_MAX,
- nodes, order, size,
- size/2, n,
- mode);
- if (err) {
- pr_err("%s evict_something(size=%u, alignment=%u) failed\n",
- mode->name, size/2, n);
- ret = err;
+ if (evict_something(test, &mm, 0, U64_MAX, nodes, order, size,
+ size/2, n, mode)) {
+ KUNIT_FAIL(test,
+ "%s evict_something(size=%u, alignment=%u) failed\n",
+ mode->name, size/2, n);
goto out;
}
}
@@ -1598,14 +1456,10 @@ static int igt_evict(void *ignored)
DRM_MM_BUG_ON(!nsize);

drm_random_reorder(order, size, &prng);
- err = evict_something(&mm, 0, U64_MAX,
- nodes, order, size,
- nsize, n,
- mode);
- if (err) {
- pr_err("%s evict_something(size=%u, alignment=%u) failed\n",
- mode->name, nsize, n);
- ret = err;
+ if (evict_something(test, &mm, 0, U64_MAX, nodes, order, size,
+ nsize, n, mode)) {
+ KUNIT_FAIL(test, "%s evict_something(size=%u, alignment=%u) failed\n",
+ mode->name, nsize, n);
goto out;
}
}
@@ -1613,7 +1467,6 @@ static int igt_evict(void *ignored)
cond_resched();
}

- ret = 0;
out:
drm_mm_for_each_node_safe(node, next, &mm)
drm_mm_remove_node(node);
@@ -1621,11 +1474,9 @@ static int igt_evict(void *ignored)
kfree(order);
err_nodes:
vfree(nodes);
-err:
- return ret;
}

-static int igt_evict_range(void *ignored)
+static void igt_mm_evict_range(struct kunit *test)
{
DRM_RND_STATE(prng, random_seed);
const unsigned int size = 8192;
@@ -1637,28 +1488,22 @@ static int igt_evict_range(void *ignored)
struct evict_node *nodes;
struct drm_mm_node *node, *next;
unsigned int *order, n;
- int ret, err;

/* Like igt_evict() but now we are limiting the search to a
* small portion of the full drm_mm.
*/

- ret = -ENOMEM;
nodes = vzalloc(array_size(size, sizeof(*nodes)));
- if (!nodes)
- goto err;
+ KUNIT_ASSERT_TRUE(test, nodes);

order = drm_random_order(size, &prng);
if (!order)
goto err_nodes;

- ret = -EINVAL;
drm_mm_init(&mm, 0, size);
for (n = 0; n < size; n++) {
- err = drm_mm_insert_node(&mm, &nodes[n].node, 1);
- if (err) {
- pr_err("insert failed, step %d\n", n);
- ret = err;
+ if (drm_mm_insert_node(&mm, &nodes[n].node, 1)) {
+ KUNIT_FAIL(test, "insert failed, step %d\n", n);
goto out;
}
}
@@ -1666,26 +1511,22 @@ static int igt_evict_range(void *ignored)
for (mode = evict_modes; mode->name; mode++) {
for (n = 1; n <= range_size; n <<= 1) {
drm_random_reorder(order, size, &prng);
- err = evict_something(&mm, range_start, range_end,
- nodes, order, size,
- n, 1,
- mode);
- if (err) {
- pr_err("%s evict_something(size=%u) failed with range [%u, %u]\n",
- mode->name, n, range_start, range_end);
+ if (evict_something(test, &mm, range_start, range_end, nodes,
+ order, size, n, 1, mode)) {
+ KUNIT_FAIL(test,
+ "%s evict_something(size=%u) failed with range [%u, %u]\n",
+ mode->name, n, range_start, range_end);
goto out;
}
}

for (n = 1; n <= range_size; n <<= 1) {
drm_random_reorder(order, size, &prng);
- err = evict_something(&mm, range_start, range_end,
- nodes, order, size,
- range_size/2, n,
- mode);
- if (err) {
- pr_err("%s evict_something(size=%u, alignment=%u) failed with range [%u, %u]\n",
- mode->name, range_size/2, n, range_start, range_end);
+ if (evict_something(test, &mm, range_start, range_end, nodes,
+ order, size, range_size/2, n, mode)) {
+ KUNIT_FAIL(test,
+ "%s evict_something(size=%u, alignment=%u) failed with range [%u, %u]\n",
+ mode->name, range_size/2, n, range_start, range_end);
goto out;
}
}
@@ -1696,13 +1537,11 @@ static int igt_evict_range(void *ignored)
DRM_MM_BUG_ON(!nsize);

drm_random_reorder(order, size, &prng);
- err = evict_something(&mm, range_start, range_end,
- nodes, order, size,
- nsize, n,
- mode);
- if (err) {
- pr_err("%s evict_something(size=%u, alignment=%u) failed with range [%u, %u]\n",
- mode->name, nsize, n, range_start, range_end);
+ if (evict_something(test, &mm, range_start, range_end, nodes,
+ order, size, nsize, n, mode)) {
+ KUNIT_FAIL(test,
+ "%s evict_something(size=%u, alignment=%u) failed with range [%u, %u]\n",
+ mode->name, nsize, n, range_start, range_end);
goto out;
}
}
@@ -1710,7 +1549,6 @@ static int igt_evict_range(void *ignored)
cond_resched();
}

- ret = 0;
out:
drm_mm_for_each_node_safe(node, next, &mm)
drm_mm_remove_node(node);
@@ -1718,8 +1556,6 @@ static int igt_evict_range(void *ignored)
kfree(order);
err_nodes:
vfree(nodes);
-err:
- return ret;
}

static unsigned int node_index(const struct drm_mm_node *node)
@@ -1727,7 +1563,7 @@ static unsigned int node_index(const struct drm_mm_node *node)
return div64_u64(node->start, node->size);
}

-static int igt_topdown(void *ignored)
+static void igt_mm_topdown(struct kunit *test)
{
const struct insert_mode *topdown = &insert_modes[TOPDOWN];
DRM_RND_STATE(prng, random_seed);
@@ -1737,17 +1573,14 @@ static int igt_topdown(void *ignored)
struct drm_mm mm;
struct drm_mm_node *nodes, *node, *next;
unsigned int *order, n, m, o = 0;
- int ret;

/* When allocating top-down, we expect to be returned a node
* from a suitable hole at the top of the drm_mm. We check that
* the returned node does match the highest available slot.
*/

- ret = -ENOMEM;
nodes = vzalloc(array_size(count, sizeof(*nodes)));
- if (!nodes)
- goto err;
+ KUNIT_ASSERT_TRUE(test, nodes);

bitmap = bitmap_zalloc(count, GFP_KERNEL);
if (!bitmap)
@@ -1757,28 +1590,26 @@ static int igt_topdown(void *ignored)
if (!order)
goto err_bitmap;

- ret = -EINVAL;
for (size = 1; size <= 64; size <<= 1) {
drm_mm_init(&mm, 0, size*count);
for (n = 0; n < count; n++) {
- if (!expect_insert(&mm, &nodes[n],
- size, 0, n,
- topdown)) {
- pr_err("insert failed, size %u step %d\n", size, n);
+ if (!expect_insert(test, &mm, &nodes[n], size, 0, n, topdown)) {
+ KUNIT_FAIL(test, "insert failed, size %u step %d\n", size, n);
goto out;
}

if (drm_mm_hole_follows(&nodes[n])) {
- pr_err("hole after topdown insert %d, start=%llx\n, size=%u",
- n, nodes[n].start, size);
+ KUNIT_FAIL(test,
+ "hole after topdown insert %d, start=%llx\n, size=%u",
+ n, nodes[n].start, size);
goto out;
}

- if (!assert_one_hole(&mm, 0, size*(count - n - 1)))
+ if (!assert_one_hole(test, &mm, 0, size*(count - n - 1)))
goto out;
}

- if (!assert_continuous(&mm, size))
+ if (!assert_continuous(test, &mm, size))
goto out;

drm_random_reorder(order, count, &prng);
@@ -1793,23 +1624,23 @@ static int igt_topdown(void *ignored)
unsigned int last;

node = &nodes[order[(o + m) % count]];
- if (!expect_insert(&mm, node,
- size, 0, 0,
- topdown)) {
- pr_err("insert failed, step %d/%d\n", m, n);
+ if (!expect_insert(test, &mm, node, size, 0, 0, topdown)) {
+ KUNIT_FAIL(test, "insert failed, step %d/%d\n", m, n);
goto out;
}

if (drm_mm_hole_follows(node)) {
- pr_err("hole after topdown insert %d/%d, start=%llx\n",
- m, n, node->start);
+ KUNIT_FAIL(test,
+ "hole after topdown insert %d/%d, start=%llx\n",
+ m, n, node->start);
goto out;
}

last = find_last_bit(bitmap, count);
if (node_index(node) != last) {
- pr_err("node %d/%d, size %d, not inserted into upmost hole, expected %d, found %d\n",
- m, n, size, last, node_index(node));
+ KUNIT_FAIL(test,
+ "node %d/%d, size %d, not inserted into upmost hole, expected %d, found %d\n",
+ m, n, size, last, node_index(node));
goto out;
}

@@ -1827,7 +1658,6 @@ static int igt_topdown(void *ignored)
cond_resched();
}

- ret = 0;
out:
drm_mm_for_each_node_safe(node, next, &mm)
drm_mm_remove_node(node);
@@ -1837,11 +1667,9 @@ static int igt_topdown(void *ignored)
bitmap_free(bitmap);
err_nodes:
vfree(nodes);
-err:
- return ret;
}

-static int igt_bottomup(void *ignored)
+static void igt_mm_bottomup(struct kunit *test)
{
const struct insert_mode *bottomup = &insert_modes[BOTTOMUP];
DRM_RND_STATE(prng, random_seed);
@@ -1851,16 +1679,13 @@ static int igt_bottomup(void *ignored)
struct drm_mm mm;
struct drm_mm_node *nodes, *node, *next;
unsigned int *order, n, m, o = 0;
- int ret;

/* Like igt_topdown, but instead of searching for the last hole,
* we search for the first.
*/

- ret = -ENOMEM;
nodes = vzalloc(array_size(count, sizeof(*nodes)));
- if (!nodes)
- goto err;
+ KUNIT_ASSERT_TRUE(test, nodes);

bitmap = bitmap_zalloc(count, GFP_KERNEL);
if (!bitmap)
@@ -1870,22 +1695,20 @@ static int igt_bottomup(void *ignored)
if (!order)
goto err_bitmap;

- ret = -EINVAL;
for (size = 1; size <= 64; size <<= 1) {
drm_mm_init(&mm, 0, size*count);
for (n = 0; n < count; n++) {
- if (!expect_insert(&mm, &nodes[n],
- size, 0, n,
- bottomup)) {
- pr_err("bottomup insert failed, size %u step %d\n", size, n);
+ if (!expect_insert(test, &mm, &nodes[n], size, 0, n, bottomup)) {
+ KUNIT_FAIL(test,
+ "bottomup insert failed, size %u step %d\n", size, n);
goto out;
}

- if (!assert_one_hole(&mm, size*(n + 1), size*count))
+ if (!assert_one_hole(test, &mm, size*(n + 1), size*count))
goto out;
}

- if (!assert_continuous(&mm, size))
+ if (!assert_continuous(test, &mm, size))
goto out;

drm_random_reorder(order, count, &prng);
@@ -1900,17 +1723,16 @@ static int igt_bottomup(void *ignored)
unsigned int first;

node = &nodes[order[(o + m) % count]];
- if (!expect_insert(&mm, node,
- size, 0, 0,
- bottomup)) {
- pr_err("insert failed, step %d/%d\n", m, n);
+ if (!expect_insert(test, &mm, node, size, 0, 0, bottomup)) {
+ KUNIT_FAIL(test, "insert failed, step %d/%d\n", m, n);
goto out;
}

first = find_first_bit(bitmap, count);
if (node_index(node) != first) {
- pr_err("node %d/%d not inserted into bottom hole, expected %d, found %d\n",
- m, n, first, node_index(node));
+ KUNIT_FAIL(test,
+ "node %d/%d not inserted into bottom hole, expected %d, found %d\n",
+ m, n, first, node_index(node));
goto out;
}
__clear_bit(first, bitmap);
@@ -1927,7 +1749,6 @@ static int igt_bottomup(void *ignored)
cond_resched();
}

- ret = 0;
out:
drm_mm_for_each_node_safe(node, next, &mm)
drm_mm_remove_node(node);
@@ -1937,47 +1758,39 @@ static int igt_bottomup(void *ignored)
bitmap_free(bitmap);
err_nodes:
vfree(nodes);
-err:
- return ret;
}

-static int __igt_once(unsigned int mode)
+static void __igt_once(struct kunit *test, unsigned int mode)
{
struct drm_mm mm;
struct drm_mm_node rsvd_lo, rsvd_hi, node;
- int err;

drm_mm_init(&mm, 0, 7);

memset(&rsvd_lo, 0, sizeof(rsvd_lo));
rsvd_lo.start = 1;
rsvd_lo.size = 1;
- err = drm_mm_reserve_node(&mm, &rsvd_lo);
- if (err) {
- pr_err("Could not reserve low node\n");
+ if (drm_mm_reserve_node(&mm, &rsvd_lo)) {
+ KUNIT_FAIL(test, "Could not reserve low node\n");
goto err;
}

memset(&rsvd_hi, 0, sizeof(rsvd_hi));
rsvd_hi.start = 5;
rsvd_hi.size = 1;
- err = drm_mm_reserve_node(&mm, &rsvd_hi);
- if (err) {
- pr_err("Could not reserve low node\n");
+ if (drm_mm_reserve_node(&mm, &rsvd_hi)) {
+ KUNIT_FAIL(test, "Could not reserve low node\n");
goto err_lo;
}

if (!drm_mm_hole_follows(&rsvd_lo) || !drm_mm_hole_follows(&rsvd_hi)) {
- pr_err("Expected a hole after lo and high nodes!\n");
- err = -EINVAL;
+ KUNIT_FAIL(test, "Expected a hole after lo and high nodes!\n");
goto err_hi;
}

memset(&node, 0, sizeof(node));
- err = drm_mm_insert_node_generic(&mm, &node, 2, 0, 0, mode);
- if (err) {
- pr_err("Could not insert the node into the available hole!\n");
- err = -EINVAL;
+ if (drm_mm_insert_node_generic(&mm, &node, 2, 0, 0, mode)) {
+ KUNIT_FAIL(test, "Could not insert the node into the available hole!\n");
goto err_hi;
}

@@ -1988,23 +1801,20 @@ static int __igt_once(unsigned int mode)
drm_mm_remove_node(&rsvd_lo);
err:
drm_mm_takedown(&mm);
- return err;
}

-static int igt_lowest(void *ignored)
+static void igt_mm_lowest(struct kunit *test)
{
- return __igt_once(DRM_MM_INSERT_LOW);
+ __igt_once(test, DRM_MM_INSERT_LOW);
}

-static int igt_highest(void *ignored)
+static void igt_mm_highest(struct kunit *test)
{
- return __igt_once(DRM_MM_INSERT_HIGH);
+ __igt_once(test, DRM_MM_INSERT_HIGH);
}

static void separate_adjacent_colors(const struct drm_mm_node *node,
- unsigned long color,
- u64 *start,
- u64 *end)
+ unsigned long color, u64 *start, u64 *end)
{
if (drm_mm_node_allocated(node) && node->color != color)
++*start;
@@ -2014,11 +1824,11 @@ static void separate_adjacent_colors(const struct drm_mm_node *node,
--*end;
}

-static bool colors_abutt(const struct drm_mm_node *node)
+static bool colors_abutt(struct kunit *test, const struct drm_mm_node *node)
{
if (!drm_mm_hole_follows(node) &&
drm_mm_node_allocated(list_next_entry(node, node_list))) {
- pr_err("colors abutt; %ld [%llx + %llx] is next to %ld [%llx + %llx]!\n",
+ KUNIT_FAIL(test, "colors abutt; %ld [%llx + %llx] is next to %ld [%llx + %llx]!\n",
node->color, node->start, node->size,
list_next_entry(node, node_list)->color,
list_next_entry(node, node_list)->start,
@@ -2029,14 +1839,13 @@ static bool colors_abutt(const struct drm_mm_node *node)
return false;
}

-static int igt_color(void *ignored)
+static void igt_mm_color(struct kunit *test)
{
const unsigned int count = min(4096u, max_iterations);
const struct insert_mode *mode;
struct drm_mm mm;
struct drm_mm_node *node, *nn;
unsigned int n;
- int ret = -EINVAL, err;

/* Color adjustment complicates everything. First we just check
* that when we insert a node we apply any color_adjustment callback.
@@ -2050,14 +1859,11 @@ static int igt_color(void *ignored)
for (n = 1; n <= count; n++) {
node = kzalloc(sizeof(*node), GFP_KERNEL);
if (!node) {
- ret = -ENOMEM;
goto out;
}

- if (!expect_insert(&mm, node,
- n, 0, n,
- &insert_modes[0])) {
- pr_err("insert failed, step %d\n", n);
+ if (!expect_insert(test, &mm, node, n, 0, n, &insert_modes[0])) {
+ KUNIT_FAIL(test, "insert failed, step %d\n", n);
kfree(node);
goto out;
}
@@ -2065,7 +1871,7 @@ static int igt_color(void *ignored)

drm_mm_for_each_node_safe(node, nn, &mm) {
if (node->color != node->size) {
- pr_err("invalid color stored: expected %lld, found %ld\n",
+ KUNIT_FAIL(test, "invalid color stored: expected %lld, found %ld\n",
node->size, node->color);

goto out;
@@ -2082,17 +1888,14 @@ static int igt_color(void *ignored)

node = kzalloc(sizeof(*node), GFP_KERNEL);
if (!node) {
- ret = -ENOMEM;
goto out;
}

node->size = 1 + 2*count;
node->color = node->size;

- err = drm_mm_reserve_node(&mm, node);
- if (err) {
- pr_err("initial reserve failed!\n");
- ret = err;
+ if (drm_mm_reserve_node(&mm, node)) {
+ KUNIT_FAIL(test, "initial reserve failed!\n");
goto out;
}

@@ -2103,7 +1906,6 @@ static int igt_color(void *ignored)

node = kzalloc(sizeof(*node), GFP_KERNEL);
if (!node) {
- ret = -ENOMEM;
goto out;
}

@@ -2111,10 +1913,8 @@ static int igt_color(void *ignored)
node->size = n + count;
node->color = node->size;

- err = drm_mm_reserve_node(&mm, node);
- if (err != -ENOSPC) {
- pr_err("reserve %d did not report color overlap! err=%d\n",
- n, err);
+ if (drm_mm_reserve_node(&mm, node) != -ENOSPC) {
+ KUNIT_FAIL(test, "reserve %d did not report color overlap!", n);
goto out;
}

@@ -2122,10 +1922,8 @@ static int igt_color(void *ignored)
rem = misalignment(node, n + count);
node->start += n + count - rem;

- err = drm_mm_reserve_node(&mm, node);
- if (err) {
- pr_err("reserve %d failed, err=%d\n", n, err);
- ret = err;
+ if (drm_mm_reserve_node(&mm, node)) {
+ KUNIT_FAIL(test, "reserve %d failed", n);
goto out;
}

@@ -2135,15 +1933,11 @@ static int igt_color(void *ignored)
for (n = 1; n <= count; n++) {
node = kzalloc(sizeof(*node), GFP_KERNEL);
if (!node) {
- ret = -ENOMEM;
goto out;
}

- if (!expect_insert(&mm, node,
- n, n, n,
- mode)) {
- pr_err("%s insert failed, step %d\n",
- mode->name, n);
+ if (!expect_insert(test, &mm, node, n, n, n, mode)) {
+ KUNIT_FAIL(test, "%s insert failed, step %d\n", mode->name, n);
kfree(node);
goto out;
}
@@ -2153,19 +1947,21 @@ static int igt_color(void *ignored)
u64 rem;

if (node->color != node->size) {
- pr_err("%s invalid color stored: expected %lld, found %ld\n",
- mode->name, node->size, node->color);
+ KUNIT_FAIL(test,
+ "%s invalid color stored: expected %lld, found %ld\n",
+ mode->name, node->size, node->color);

goto out;
}

- if (colors_abutt(node))
+ if (colors_abutt(test, node))
goto out;

div64_u64_rem(node->start, node->size, &rem);
if (rem) {
- pr_err("%s colored node misaligned, start=%llx expected alignment=%lld [rem=%lld]\n",
- mode->name, node->start, node->size, rem);
+ KUNIT_FAIL(test,
+ "%s colored node misaligned, start=%llx expected alignment=%lld [rem=%lld]\n",
+ mode->name, node->start, node->size, rem);
goto out;
}

@@ -2176,25 +1972,18 @@ static int igt_color(void *ignored)
cond_resched();
}

- ret = 0;
out:
drm_mm_for_each_node_safe(node, nn, &mm) {
drm_mm_remove_node(node);
kfree(node);
}
drm_mm_takedown(&mm);
- return ret;
}

-static int evict_color(struct drm_mm *mm,
- u64 range_start, u64 range_end,
- struct evict_node *nodes,
- unsigned int *order,
- unsigned int count,
- unsigned int size,
- unsigned int alignment,
- unsigned long color,
- const struct insert_mode *mode)
+static int evict_color(struct kunit *test, struct drm_mm *mm, u64 range_start,
+ u64 range_end, struct evict_node *nodes, unsigned int *order,
+ unsigned int count, unsigned int size, unsigned int alignment,
+ unsigned long color, const struct insert_mode *mode)
{
struct drm_mm_scan scan;
LIST_HEAD(evict_list);
@@ -2202,39 +1991,37 @@ static int evict_color(struct drm_mm *mm,
struct drm_mm_node tmp;
int err;

- drm_mm_scan_init_with_range(&scan, mm,
- size, alignment, color,
- range_start, range_end,
- mode->mode);
- if (!evict_nodes(&scan,
- nodes, order, count, true,
- &evict_list))
+ drm_mm_scan_init_with_range(&scan, mm, size, alignment, color, range_start,
+ range_end, mode->mode);
+ if (!evict_nodes(test, &scan, nodes, order, count, true, &evict_list))
return -EINVAL;

memset(&tmp, 0, sizeof(tmp));
err = drm_mm_insert_node_generic(mm, &tmp, size, alignment, color,
DRM_MM_INSERT_EVICT);
if (err) {
- pr_err("Failed to insert into eviction hole: size=%d, align=%d, color=%lu, err=%d\n",
- size, alignment, color, err);
- show_scan(&scan);
- show_holes(mm, 3);
+ KUNIT_FAIL(test,
+ "Failed to insert into eviction hole: size=%d, align=%d, color=%lu, err=%d\n",
+ size, alignment, color, err);
+ show_scan(test, &scan);
+ show_holes(test, mm, 3);
return err;
}

if (tmp.start < range_start || tmp.start + tmp.size > range_end) {
- pr_err("Inserted [address=%llu + %llu] did not fit into the request range [%llu, %llu]\n",
- tmp.start, tmp.size, range_start, range_end);
+ KUNIT_FAIL(test,
+ "Inserted [address=%llu + %llu] did not fit into the request range [%llu, %llu]\n",
+ tmp.start, tmp.size, range_start, range_end);
err = -EINVAL;
}

- if (colors_abutt(&tmp))
+ if (colors_abutt(test, &tmp))
err = -EINVAL;

- if (!assert_node(&tmp, mm, size, alignment, color)) {
- pr_err("Inserted did not fit the eviction hole: size=%lld [%d], align=%d [rem=%lld], start=%llx\n",
- tmp.size, size,
- alignment, misalignment(&tmp, alignment), tmp.start);
+ if (!assert_node(test, &tmp, mm, size, alignment, color)) {
+ KUNIT_FAIL(test,
+ "Inserted did not fit the eviction hole: size=%lld [%d], align=%d [rem=%lld], start=%llx\n",
+ tmp.size, size, alignment, misalignment(&tmp, alignment), tmp.start);
err = -EINVAL;
}

@@ -2245,7 +2032,7 @@ static int evict_color(struct drm_mm *mm,
list_for_each_entry(e, &evict_list, link) {
err = drm_mm_reserve_node(mm, &e->node);
if (err) {
- pr_err("Failed to reinsert node after eviction: start=%llx\n",
+ KUNIT_FAIL(test, "Failed to reinsert node after eviction: start=%llx\n",
e->node.start);
return err;
}
@@ -2255,7 +2042,7 @@ static int evict_color(struct drm_mm *mm,
return 0;
}

-static int igt_color_evict(void *ignored)
+static void igt_mm_color_evict(struct kunit *test)
{
DRM_RND_STATE(prng, random_seed);
const unsigned int total_size = min(8192u, max_iterations);
@@ -2265,7 +2052,6 @@ static int igt_color_evict(void *ignored)
struct evict_node *nodes;
struct drm_mm_node *node, *next;
unsigned int *order, n;
- int ret, err;

/* Check that the drm_mm_scan also honours color adjustment when
* choosing its victims to create a hole. Our color_adjust does not
@@ -2273,23 +2059,20 @@ static int igt_color_evict(void *ignored)
* enlarging the set of victims that must be evicted.
*/

- ret = -ENOMEM;
nodes = vzalloc(array_size(total_size, sizeof(*nodes)));
- if (!nodes)
- goto err;
+ KUNIT_ASSERT_TRUE(test, nodes);

order = drm_random_order(total_size, &prng);
if (!order)
goto err_nodes;

- ret = -EINVAL;
drm_mm_init(&mm, 0, 2*total_size - 1);
mm.color_adjust = separate_adjacent_colors;
for (n = 0; n < total_size; n++) {
- if (!expect_insert(&mm, &nodes[n].node,
+ if (!expect_insert(test, &mm, &nodes[n].node,
1, 0, color++,
&insert_modes[0])) {
- pr_err("insert failed, step %d\n", n);
+ KUNIT_FAIL(test, "insert failed, step %d\n", n);
goto out;
}
}
@@ -2297,25 +2080,18 @@ static int igt_color_evict(void *ignored)
for (mode = evict_modes; mode->name; mode++) {
for (n = 1; n <= total_size; n <<= 1) {
drm_random_reorder(order, total_size, &prng);
- err = evict_color(&mm, 0, U64_MAX,
- nodes, order, total_size,
- n, 1, color++,
- mode);
- if (err) {
- pr_err("%s evict_color(size=%u) failed\n",
- mode->name, n);
+ if (evict_color(test, &mm, 0, U64_MAX, nodes, order, total_size,
+ n, 1, color++, mode)) {
+ KUNIT_FAIL(test, "%s evict_color(size=%u) failed\n", mode->name, n);
goto out;
}
}

for (n = 1; n < total_size; n <<= 1) {
drm_random_reorder(order, total_size, &prng);
- err = evict_color(&mm, 0, U64_MAX,
- nodes, order, total_size,
- total_size/2, n, color++,
- mode);
- if (err) {
- pr_err("%s evict_color(size=%u, alignment=%u) failed\n",
+ if (evict_color(test, &mm, 0, U64_MAX, nodes, order, total_size,
+ total_size/2, n, color++, mode)) {
+ KUNIT_FAIL(test, "%s evict_color(size=%u, alignment=%u) failed\n",
mode->name, total_size/2, n);
goto out;
}
@@ -2327,12 +2103,9 @@ static int igt_color_evict(void *ignored)
DRM_MM_BUG_ON(!nsize);

drm_random_reorder(order, total_size, &prng);
- err = evict_color(&mm, 0, U64_MAX,
- nodes, order, total_size,
- nsize, n, color++,
- mode);
- if (err) {
- pr_err("%s evict_color(size=%u, alignment=%u) failed\n",
+ if (evict_color(test, &mm, 0, U64_MAX, nodes, order, total_size,
+ nsize, n, color++, mode)) {
+ KUNIT_FAIL(test, "%s evict_color(size=%u, alignment=%u) failed\n",
mode->name, nsize, n);
goto out;
}
@@ -2341,21 +2114,16 @@ static int igt_color_evict(void *ignored)
cond_resched();
}

- ret = 0;
out:
- if (ret)
- show_mm(&mm);
drm_mm_for_each_node_safe(node, next, &mm)
drm_mm_remove_node(node);
drm_mm_takedown(&mm);
kfree(order);
err_nodes:
vfree(nodes);
-err:
- return ret;
}

-static int igt_color_evict_range(void *ignored)
+static void igt_mm_color_evict_range(struct kunit *test)
{
DRM_RND_STATE(prng, random_seed);
const unsigned int total_size = 8192;
@@ -2368,29 +2136,25 @@ static int igt_color_evict_range(void *ignored)
struct evict_node *nodes;
struct drm_mm_node *node, *next;
unsigned int *order, n;
- int ret, err;

/* Like igt_color_evict(), but limited to small portion of the full
* drm_mm range.
*/

- ret = -ENOMEM;
nodes = vzalloc(array_size(total_size, sizeof(*nodes)));
- if (!nodes)
- goto err;
+ KUNIT_ASSERT_TRUE(test, nodes);

order = drm_random_order(total_size, &prng);
if (!order)
goto err_nodes;

- ret = -EINVAL;
drm_mm_init(&mm, 0, 2*total_size - 1);
mm.color_adjust = separate_adjacent_colors;
for (n = 0; n < total_size; n++) {
- if (!expect_insert(&mm, &nodes[n].node,
+ if (!expect_insert(test, &mm, &nodes[n].node,
1, 0, color++,
&insert_modes[0])) {
- pr_err("insert failed, step %d\n", n);
+ KUNIT_FAIL(test, "insert failed, step %d\n", n);
goto out;
}
}
@@ -2398,26 +2162,21 @@ static int igt_color_evict_range(void *ignored)
for (mode = evict_modes; mode->name; mode++) {
for (n = 1; n <= range_size; n <<= 1) {
drm_random_reorder(order, range_size, &prng);
- err = evict_color(&mm, range_start, range_end,
- nodes, order, total_size,
- n, 1, color++,
- mode);
- if (err) {
- pr_err("%s evict_color(size=%u) failed for range [%x, %x]\n",
- mode->name, n, range_start, range_end);
+ if (evict_color(test, &mm, range_start, range_end, nodes, order,
+ total_size, n, 1, color++, mode)) {
+ KUNIT_FAIL(test, "%s evict_color(size=%u) failed for range [%x, %x]\n",
+ mode->name, n, range_start, range_end);
goto out;
}
}

for (n = 1; n < range_size; n <<= 1) {
drm_random_reorder(order, total_size, &prng);
- err = evict_color(&mm, range_start, range_end,
- nodes, order, total_size,
- range_size/2, n, color++,
- mode);
- if (err) {
- pr_err("%s evict_color(size=%u, alignment=%u) failed for range [%x, %x]\n",
- mode->name, total_size/2, n, range_start, range_end);
+ if (evict_color(test, &mm, range_start, range_end, nodes, order,
+ total_size, range_size/2, n, color++, mode)) {
+ KUNIT_FAIL(test,
+ "%s evict_color(size=%u, alignment=%u) failed for range [%x, %x]\n",
+ mode->name, total_size/2, n, range_start, range_end);
goto out;
}
}
@@ -2428,13 +2187,11 @@ static int igt_color_evict_range(void *ignored)
DRM_MM_BUG_ON(!nsize);

drm_random_reorder(order, total_size, &prng);
- err = evict_color(&mm, range_start, range_end,
- nodes, order, total_size,
- nsize, n, color++,
- mode);
- if (err) {
- pr_err("%s evict_color(size=%u, alignment=%u) failed for range [%x, %x]\n",
- mode->name, nsize, n, range_start, range_end);
+ if (evict_color(test, &mm, range_start, range_end, nodes, order,
+ total_size, nsize, n, color++, mode)) {
+ KUNIT_FAIL(test,
+ "%s evict_color(size=%u, alignment=%u) failed for range [%x, %x]\n",
+ mode->name, nsize, n, range_start, range_end);
goto out;
}
}
@@ -2442,46 +2199,57 @@ static int igt_color_evict_range(void *ignored)
cond_resched();
}

- ret = 0;
out:
- if (ret)
- show_mm(&mm);
drm_mm_for_each_node_safe(node, next, &mm)
drm_mm_remove_node(node);
drm_mm_takedown(&mm);
kfree(order);
err_nodes:
vfree(nodes);
-err:
- return ret;
}

-#include "drm_selftest.c"
-
-static int __init test_drm_mm_init(void)
+static int drm_mm_init_test(struct kunit *test)
{
- int err;
-
while (!random_seed)
random_seed = get_random_int();

- pr_info("Testing DRM range manager (struct drm_mm), with random_seed=0x%x max_iterations=%u max_prime=%u\n",
- random_seed, max_iterations, max_prime);
- err = run_selftests(selftests, ARRAY_SIZE(selftests), NULL);
-
- return err > 0 ? 0 : err;
-}
-
-static void __exit test_drm_mm_exit(void)
-{
+ return 0;
}

-module_init(test_drm_mm_init);
-module_exit(test_drm_mm_exit);
-
module_param(random_seed, uint, 0400);
module_param(max_iterations, uint, 0400);
module_param(max_prime, uint, 0400);

+static struct kunit_case drm_mm_tests[] = {
+ KUNIT_CASE(igt_mm_init),
+ KUNIT_CASE(igt_mm_debug),
+ KUNIT_CASE(igt_mm_reserve),
+ KUNIT_CASE(igt_mm_insert),
+ KUNIT_CASE(igt_mm_replace),
+ KUNIT_CASE(igt_mm_insert_range),
+ KUNIT_CASE(igt_mm_frag),
+ KUNIT_CASE(igt_mm_align),
+ KUNIT_CASE(igt_mm_align32),
+ KUNIT_CASE(igt_mm_align64),
+ KUNIT_CASE(igt_mm_evict),
+ KUNIT_CASE(igt_mm_evict_range),
+ KUNIT_CASE(igt_mm_topdown),
+ KUNIT_CASE(igt_mm_bottomup),
+ KUNIT_CASE(igt_mm_lowest),
+ KUNIT_CASE(igt_mm_highest),
+ KUNIT_CASE(igt_mm_color),
+ KUNIT_CASE(igt_mm_color_evict),
+ KUNIT_CASE(igt_mm_color_evict_range),
+ {}
+};
+
+static struct kunit_suite drm_mm_test_suite = {
+ .name = "drm_mm",
+ .init = drm_mm_init_test,
+ .test_cases = drm_mm_tests,
+};
+
+kunit_test_suite(drm_mm_test_suite);
+
MODULE_AUTHOR("Intel Corporation");
MODULE_LICENSE("GPL");
--
2.36.1

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