From f4cdf7ca9a1fdcca413157df19753f388a5a224e Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 19 Aug 2026 10:09:22 -0700 Subject: Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ... --- lib/tests/cpumask_kunit.c | 156 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 156 insertions(+) create mode 100644 lib/tests/cpumask_kunit.c (limited to 'lib/tests/cpumask_kunit.c') diff --git a/lib/tests/cpumask_kunit.c b/lib/tests/cpumask_kunit.c new file mode 100644 index 000000000..6b62a6bdd --- /dev/null +++ b/lib/tests/cpumask_kunit.c @@ -0,0 +1,156 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * KUnit tests for cpumask. + * + * Author: Sander Vanheule + */ + +#include +#include +#include + +#define MASK_MSG(m) \ + "%s contains %sCPUs %*pbl", #m, (cpumask_weight(m) ? "" : "no "), \ + nr_cpumask_bits, cpumask_bits(m) + +#define EXPECT_FOR_EACH_CPU_EQ(test, mask) \ + do { \ + const cpumask_t *m = (mask); \ + int mask_weight = cpumask_weight(m); \ + int cpu, iter = 0; \ + for_each_cpu(cpu, m) \ + iter++; \ + KUNIT_EXPECT_EQ_MSG((test), mask_weight, iter, MASK_MSG(mask)); \ + } while (0) + +#define EXPECT_FOR_EACH_CPU_OP_EQ(test, op, mask1, mask2) \ + do { \ + const cpumask_t *m1 = (mask1); \ + const cpumask_t *m2 = (mask2); \ + int weight; \ + int cpu, iter = 0; \ + cpumask_##op(&mask_tmp, m1, m2); \ + weight = cpumask_weight(&mask_tmp); \ + for_each_cpu_##op(cpu, mask1, mask2) \ + iter++; \ + KUNIT_EXPECT_EQ((test), weight, iter); \ + } while (0) + +#define EXPECT_FOR_EACH_CPU_WRAP_EQ(test, mask) \ + do { \ + const cpumask_t *m = (mask); \ + int mask_weight = cpumask_weight(m); \ + int cpu, iter = 0; \ + for_each_cpu_wrap(cpu, m, nr_cpu_ids / 2) \ + iter++; \ + KUNIT_EXPECT_EQ_MSG((test), mask_weight, iter, MASK_MSG(mask)); \ + } while (0) + +#define EXPECT_FOR_EACH_CPU_BUILTIN_EQ(test, name) \ + do { \ + int mask_weight = num_##name##_cpus(); \ + int cpu, iter = 0; \ + for_each_##name##_cpu(cpu) \ + iter++; \ + KUNIT_EXPECT_EQ_MSG((test), mask_weight, iter, MASK_MSG(cpu_##name##_mask)); \ + } while (0) + +static cpumask_t mask_empty; +static cpumask_t mask_all; +static cpumask_t mask_tmp; + +static void test_cpumask_weight(struct kunit *test) +{ + KUNIT_EXPECT_TRUE_MSG(test, cpumask_empty(&mask_empty), MASK_MSG(&mask_empty)); + KUNIT_EXPECT_TRUE_MSG(test, cpumask_full(&mask_all), MASK_MSG(&mask_all)); + + KUNIT_EXPECT_EQ_MSG(test, 0, cpumask_weight(&mask_empty), MASK_MSG(&mask_empty)); + KUNIT_EXPECT_EQ_MSG(test, nr_cpu_ids, cpumask_weight(cpu_possible_mask), + MASK_MSG(cpu_possible_mask)); + KUNIT_EXPECT_EQ_MSG(test, nr_cpu_ids, cpumask_weight(&mask_all), MASK_MSG(&mask_all)); +} + +static void test_cpumask_first(struct kunit *test) +{ + KUNIT_EXPECT_LE_MSG(test, nr_cpu_ids, cpumask_first(&mask_empty), MASK_MSG(&mask_empty)); + KUNIT_EXPECT_EQ_MSG(test, 0, cpumask_first(cpu_possible_mask), MASK_MSG(cpu_possible_mask)); + + KUNIT_EXPECT_EQ_MSG(test, 0, cpumask_first_zero(&mask_empty), MASK_MSG(&mask_empty)); + KUNIT_EXPECT_LE_MSG(test, nr_cpu_ids, cpumask_first_zero(cpu_possible_mask), + MASK_MSG(cpu_possible_mask)); +} + +static void test_cpumask_last(struct kunit *test) +{ + KUNIT_EXPECT_LE_MSG(test, nr_cpumask_bits, cpumask_last(&mask_empty), + MASK_MSG(&mask_empty)); + KUNIT_EXPECT_EQ_MSG(test, nr_cpu_ids - 1, cpumask_last(cpu_possible_mask), + MASK_MSG(cpu_possible_mask)); +} + +static void test_cpumask_next(struct kunit *test) +{ + KUNIT_EXPECT_EQ_MSG(test, 0, cpumask_next_zero(-1, &mask_empty), MASK_MSG(&mask_empty)); + KUNIT_EXPECT_LE_MSG(test, nr_cpu_ids, cpumask_next_zero(-1, cpu_possible_mask), + MASK_MSG(cpu_possible_mask)); + + KUNIT_EXPECT_LE_MSG(test, nr_cpu_ids, cpumask_next(-1, &mask_empty), + MASK_MSG(&mask_empty)); + KUNIT_EXPECT_EQ_MSG(test, 0, cpumask_next(-1, cpu_possible_mask), + MASK_MSG(cpu_possible_mask)); +} + +static void test_cpumask_iterators(struct kunit *test) +{ + EXPECT_FOR_EACH_CPU_EQ(test, &mask_empty); + EXPECT_FOR_EACH_CPU_WRAP_EQ(test, &mask_empty); + EXPECT_FOR_EACH_CPU_OP_EQ(test, and, &mask_empty, &mask_empty); + EXPECT_FOR_EACH_CPU_OP_EQ(test, and, cpu_possible_mask, &mask_empty); + EXPECT_FOR_EACH_CPU_OP_EQ(test, andnot, &mask_empty, &mask_empty); + + EXPECT_FOR_EACH_CPU_EQ(test, cpu_possible_mask); + EXPECT_FOR_EACH_CPU_WRAP_EQ(test, cpu_possible_mask); + EXPECT_FOR_EACH_CPU_OP_EQ(test, and, cpu_possible_mask, cpu_possible_mask); + EXPECT_FOR_EACH_CPU_OP_EQ(test, andnot, cpu_possible_mask, &mask_empty); +} + +static void test_cpumask_iterators_builtin(struct kunit *test) +{ + EXPECT_FOR_EACH_CPU_BUILTIN_EQ(test, possible); + + /* Ensure the dynamic masks are stable while running the tests */ + cpu_hotplug_disable(); + + EXPECT_FOR_EACH_CPU_BUILTIN_EQ(test, online); + EXPECT_FOR_EACH_CPU_BUILTIN_EQ(test, present); + + cpu_hotplug_enable(); +} + +static int test_cpumask_init(struct kunit *test) +{ + cpumask_clear(&mask_empty); + cpumask_setall(&mask_all); + + return 0; +} + +static struct kunit_case test_cpumask_cases[] = { + KUNIT_CASE(test_cpumask_weight), + KUNIT_CASE(test_cpumask_first), + KUNIT_CASE(test_cpumask_last), + KUNIT_CASE(test_cpumask_next), + KUNIT_CASE(test_cpumask_iterators), + KUNIT_CASE(test_cpumask_iterators_builtin), + {} +}; + +static struct kunit_suite test_cpumask_suite = { + .name = "cpumask", + .init = test_cpumask_init, + .test_cases = test_cpumask_cases, +}; +kunit_test_suite(test_cpumask_suite); + +MODULE_DESCRIPTION("KUnit tests for cpumask"); +MODULE_LICENSE("GPL"); -- cgit v1.3.1