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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
commitf4cdf7ca9a1fdcca413157df19753f388a5a224e (patch)
tree60a31895b2446cd7fa27514e8c2843534a0de0da /lib/tests/shdi3_kunit.c
downloadlinux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz
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Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
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 ...
Diffstat (limited to 'lib/tests/shdi3_kunit.c')
-rw-r--r--lib/tests/shdi3_kunit.c175
1 files changed, 175 insertions, 0 deletions
diff --git a/lib/tests/shdi3_kunit.c b/lib/tests/shdi3_kunit.c
new file mode 100644
index 000000000..44f65e665
--- /dev/null
+++ b/lib/tests/shdi3_kunit.c
@@ -0,0 +1,175 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR Apache-2.0
+/*
+ * Test cases for __ashldi3(), __ashrdi3(), and __lshrdi3().
+ */
+
+#include <linux/array_size.h>
+#include <linux/module.h>
+#include <linux/libgcc.h>
+#include <kunit/test.h>
+
+struct shdi3_test_entry {
+ long long input;
+ int shift;
+ long long result;
+};
+
+static const struct shdi3_test_entry ashldi3_testdata[] = {
+ /* https://github.com/llvm/llvm-project/compiler-rt/test/builtins/Unit/ashldi3_test.c */
+ { 0x0123456789ABCDEFLL, 0, 0x123456789ABCDEFLL },
+ { 0x0123456789ABCDEFLL, 1, 0x2468ACF13579BDELL },
+ { 0x0123456789ABCDEFLL, 2, 0x48D159E26AF37BCLL },
+ { 0x0123456789ABCDEFLL, 3, 0x91A2B3C4D5E6F78LL },
+ { 0x0123456789ABCDEFLL, 4, 0x123456789ABCDEF0LL },
+ { 0x0123456789ABCDEFLL, 28, 0x789ABCDEF0000000LL },
+ { 0x0123456789ABCDEFLL, 29, 0xF13579BDE0000000LL },
+ { 0x0123456789ABCDEFLL, 30, 0xE26AF37BC0000000LL },
+ { 0x0123456789ABCDEFLL, 31, 0xC4D5E6F780000000LL },
+ { 0x0123456789ABCDEFLL, 32, 0x89ABCDEF00000000LL },
+ { 0x0123456789ABCDEFLL, 33, 0x13579BDE00000000LL },
+ { 0x0123456789ABCDEFLL, 34, 0x26AF37BC00000000LL },
+ { 0x0123456789ABCDEFLL, 35, 0x4D5E6F7800000000LL },
+ { 0x0123456789ABCDEFLL, 36, 0x9ABCDEF000000000LL },
+ { 0x0123456789ABCDEFLL, 60, 0xF000000000000000LL },
+ { 0x0123456789ABCDEFLL, 61, 0xE000000000000000LL },
+ { 0x0123456789ABCDEFLL, 62, 0xC000000000000000LL },
+ { 0x0123456789ABCDEFLL, 63, 0x8000000000000000LL },
+};
+
+static void shdi3_test_ashldi3(struct kunit *test)
+{
+ const struct shdi3_test_entry *e;
+ long long ret;
+
+ for (e = ashldi3_testdata;
+ e < ashldi3_testdata + ARRAY_SIZE(ashldi3_testdata); e++) {
+ ret = __ashldi3(e->input, e->shift);
+ KUNIT_EXPECT_EQ_MSG(test, ret, e->result,
+ " when evaluating __ashldi3(%lld, %d)",
+ e->input, e->shift);
+ }
+}
+
+static const struct shdi3_test_entry ashrdi3_testdata[] = {
+ /* https://github.com/llvm/llvm-project/compiler-rt/test/builtins/Unit/ashrdi3_test.c */
+ { 0x0123456789ABCDEFLL, 0, 0x123456789ABCDEFLL },
+ { 0x0123456789ABCDEFLL, 1, 0x91A2B3C4D5E6F7LL },
+ { 0x0123456789ABCDEFLL, 2, 0x48D159E26AF37BLL },
+ { 0x0123456789ABCDEFLL, 3, 0x2468ACF13579BDLL },
+ { 0x0123456789ABCDEFLL, 4, 0x123456789ABCDELL },
+ { 0x0123456789ABCDEFLL, 28, 0x12345678LL },
+ { 0x0123456789ABCDEFLL, 29, 0x91A2B3CLL },
+ { 0x0123456789ABCDEFLL, 30, 0x48D159ELL },
+ { 0x0123456789ABCDEFLL, 31, 0x2468ACFLL },
+ { 0x0123456789ABCDEFLL, 32, 0x1234567LL },
+ { 0x0123456789ABCDEFLL, 33, 0x91A2B3LL },
+ { 0x0123456789ABCDEFLL, 34, 0x48D159LL },
+ { 0x0123456789ABCDEFLL, 35, 0x2468ACLL },
+ { 0x0123456789ABCDEFLL, 36, 0x123456LL },
+ { 0x0123456789ABCDEFLL, 60, 0 },
+ { 0x0123456789ABCDEFLL, 61, 0 },
+ { 0x0123456789ABCDEFLL, 62, 0 },
+ { 0x0123456789ABCDEFLL, 63, 0 },
+ { 0xFEDCBA9876543210LL, 0, 0xFEDCBA9876543210LL },
+ { 0xFEDCBA9876543210LL, 1, 0xFF6E5D4C3B2A1908LL },
+ { 0xFEDCBA9876543210LL, 2, 0xFFB72EA61D950C84LL },
+ { 0xFEDCBA9876543210LL, 3, 0xFFDB97530ECA8642LL },
+ { 0xFEDCBA9876543210LL, 4, 0xFFEDCBA987654321LL },
+ { 0xFEDCBA9876543210LL, 28, 0xFFFFFFFFEDCBA987LL },
+ { 0xFEDCBA9876543210LL, 29, 0xFFFFFFFFF6E5D4C3LL },
+ { 0xFEDCBA9876543210LL, 30, 0xFFFFFFFFFB72EA61LL },
+ { 0xFEDCBA9876543210LL, 31, 0xFFFFFFFFFDB97530LL },
+ { 0xFEDCBA9876543210LL, 32, 0xFFFFFFFFFEDCBA98LL },
+ { 0xFEDCBA9876543210LL, 33, 0xFFFFFFFFFF6E5D4CLL },
+ { 0xFEDCBA9876543210LL, 34, 0xFFFFFFFFFFB72EA6LL },
+ { 0xFEDCBA9876543210LL, 35, 0xFFFFFFFFFFDB9753LL },
+ { 0xFEDCBA9876543210LL, 36, 0xFFFFFFFFFFEDCBA9LL },
+ { 0xAEDCBA9876543210LL, 60, 0xFFFFFFFFFFFFFFFALL },
+ { 0xAEDCBA9876543210LL, 61, 0xFFFFFFFFFFFFFFFDLL },
+ { 0xAEDCBA9876543210LL, 62, 0xFFFFFFFFFFFFFFFELL },
+ { 0xAEDCBA9876543210LL, 63, 0xFFFFFFFFFFFFFFFFLL },
+};
+
+static void shdi3_test_ashrdi3(struct kunit *test)
+{
+ const struct shdi3_test_entry *e;
+ long long ret;
+
+ for (e = ashrdi3_testdata;
+ e < ashrdi3_testdata + ARRAY_SIZE(ashrdi3_testdata); e++) {
+ ret = __ashrdi3(e->input, e->shift);
+ KUNIT_EXPECT_EQ_MSG(test, ret, e->result,
+ " when evaluating __ashrdi3(%lld, %d)",
+ e->input, e->shift);
+ }
+}
+
+static const struct shdi3_test_entry lshrdi3_testdata[] = {
+ /* https://github.com/llvm/llvm-project/compiler-rt/test/builtins/Unit/lshrdi3_test.c */
+ { 0x0123456789ABCDEFLL, 0, 0x123456789ABCDEFLL },
+ { 0x0123456789ABCDEFLL, 1, 0x91A2B3C4D5E6F7LL },
+ { 0x0123456789ABCDEFLL, 2, 0x48D159E26AF37BLL },
+ { 0x0123456789ABCDEFLL, 3, 0x2468ACF13579BDLL },
+ { 0x0123456789ABCDEFLL, 4, 0x123456789ABCDELL },
+ { 0x0123456789ABCDEFLL, 28, 0x12345678LL },
+ { 0x0123456789ABCDEFLL, 29, 0x91A2B3CLL },
+ { 0x0123456789ABCDEFLL, 30, 0x48D159ELL },
+ { 0x0123456789ABCDEFLL, 31, 0x2468ACFLL },
+ { 0x0123456789ABCDEFLL, 32, 0x1234567LL },
+ { 0x0123456789ABCDEFLL, 33, 0x91A2B3LL },
+ { 0x0123456789ABCDEFLL, 34, 0x48D159LL },
+ { 0x0123456789ABCDEFLL, 35, 0x2468ACLL },
+ { 0x0123456789ABCDEFLL, 36, 0x123456LL },
+ { 0x0123456789ABCDEFLL, 60, 0 },
+ { 0x0123456789ABCDEFLL, 61, 0 },
+ { 0x0123456789ABCDEFLL, 62, 0 },
+ { 0x0123456789ABCDEFLL, 63, 0 },
+ { 0xFEDCBA9876543210LL, 0, 0xFEDCBA9876543210LL },
+ { 0xFEDCBA9876543210LL, 1, 0x7F6E5D4C3B2A1908LL },
+ { 0xFEDCBA9876543210LL, 2, 0x3FB72EA61D950C84LL },
+ { 0xFEDCBA9876543210LL, 3, 0x1FDB97530ECA8642LL },
+ { 0xFEDCBA9876543210LL, 4, 0xFEDCBA987654321LL },
+ { 0xFEDCBA9876543210LL, 28, 0xFEDCBA987LL },
+ { 0xFEDCBA9876543210LL, 29, 0x7F6E5D4C3LL },
+ { 0xFEDCBA9876543210LL, 30, 0x3FB72EA61LL },
+ { 0xFEDCBA9876543210LL, 31, 0x1FDB97530LL },
+ { 0xFEDCBA9876543210LL, 32, 0xFEDCBA98LL },
+ { 0xFEDCBA9876543210LL, 33, 0x7F6E5D4CLL },
+ { 0xFEDCBA9876543210LL, 34, 0x3FB72EA6LL },
+ { 0xFEDCBA9876543210LL, 35, 0x1FDB9753LL },
+ { 0xFEDCBA9876543210LL, 36, 0xFEDCBA9LL },
+ { 0xAEDCBA9876543210LL, 60, 0xALL },
+ { 0xAEDCBA9876543210LL, 61, 0x5LL },
+ { 0xAEDCBA9876543210LL, 62, 0x2LL },
+ { 0xAEDCBA9876543210LL, 63, 0x1LL },
+};
+
+static void shdi3_test_lshrdi3(struct kunit *test)
+{
+ const struct shdi3_test_entry *e;
+ long long ret;
+
+ for (e = lshrdi3_testdata;
+ e < lshrdi3_testdata + ARRAY_SIZE(lshrdi3_testdata); e++) {
+ ret = __lshrdi3(e->input, e->shift);
+ KUNIT_EXPECT_EQ_MSG(test, ret, e->result,
+ " when evaluating __lshrdi3(%lld, %d)",
+ e->input, e->shift);
+ }
+}
+
+static struct kunit_case shdi3_test_cases[] = {
+ KUNIT_CASE(shdi3_test_ashldi3),
+ KUNIT_CASE(shdi3_test_ashrdi3),
+ KUNIT_CASE(shdi3_test_lshrdi3),
+ {}
+};
+
+static struct kunit_suite shdi3_test_suite = {
+ .name = "shdi3",
+ .test_cases = shdi3_test_cases,
+};
+kunit_test_suite(shdi3_test_suite);
+
+MODULE_DESCRIPTION("Test cases for __ashldi3(), __ashrdi3(), and __lshrdi3()");
+MODULE_LICENSE("GPL");