linux-kselftest-4.5-rc1
This 14 patch update: - adds a new test for intel_pstate driver - adds empty string and async test cases to firmware class tests - fixes and cleans up several existing tests -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJWmVN1AAoJEAsCRMQNDUMcZk4QAMCJFy4z5d7yuS9yLiIzNwrJ QVitTu82EwTpFD0FLDbv2E2ENseu7LHC99AyP0rlKtDwU8SWo4ZH1WYIjeZQ8O/M VRqJY0dENbha0oD/JyMGa0nsRTBpu0cPuV+IoazjcIvg8582WD+VgI/0uwj0pjgm H5XDTYNE3qe24Izgv7nKWLATpI6+naC7Za8Of/3bvDUoAhIlPHeNazKIbfI4tWT5 i6x3gN3mKarqxWimCFYJVdZ2ldlarlKdkCMoRK/fCo9mq3qd6EH1LO4CqQqZ9axZ MC6h7Cdf4kdCcl2j59nKg8lNfFcMCMCAG48tLA+F76YJedhazXASs4uoN0ggypPz W1Spw8PAgQp5A7c2/2ZygbdmGFPY0j7G6sXZfv5i8mwe3oArseyPk8s0C0tUIDW5 vTjKQssjs2K6XonUMSw/i/Cz/dWijgoudXxr1WlxXtmq64jHQcE53b3ybkkkXCRY Z8Qifuw6RnpCeuUU3DFX6X4dJxQCwzRQ1VzKktrY/dMwFBflSQLVH3tuGEZuUltq EpT86baPJBDPLujx+v7PB6xh1tz2LwpSDq52c12FsBaeHpX1NzshnHVB27Pml5VS x4M6zucLkR5fWeZgSG75RPhus7aQ656BE6cESyRU9nvLdxibnAZeH5DNMWKIC/1f iK2AO+QMeBK4Y9cnxUyk =Vt32 -----END PGP SIGNATURE----- Merge tag 'linux-kselftest-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest updates from Shuah Khan: "This 14 patch update: - adds a new test for intel_pstate driver - adds empty string and async test cases to firmware class tests - fixes and cleans up several existing tests" * tag 'linux-kselftest-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: firmware: add empty string and async tests firmware: actually return NULL on failed request_firmware_nowait() test: firmware_class: add asynchronous request trigger test: firmware_class: use kstrndup() where appropriate test: firmware_class: report errors properly on failure selftests/seccomp: fix 32-bit build warnings add breakpoints/.gitignore add ptrace/.gitignore update .gitignore in selftests/timers update .gitignore in selftests/vm tools, testing, add test for intel_pstate driver selftest/ipc: actually test it selftests/capabilities: actually test it selftests/capabilities: clean up for Makefile
This commit is contained in:
commit
12768c1e2c
|
@ -1118,15 +1118,17 @@ static int
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_request_firmware(const struct firmware **firmware_p, const char *name,
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struct device *device, unsigned int opt_flags)
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{
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struct firmware *fw;
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struct firmware *fw = NULL;
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long timeout;
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int ret;
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if (!firmware_p)
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return -EINVAL;
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if (!name || name[0] == '\0')
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return -EINVAL;
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if (!name || name[0] == '\0') {
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ret = -EINVAL;
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goto out;
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}
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ret = _request_firmware_prepare(&fw, name, device);
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if (ret <= 0) /* error or already assigned */
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@ -12,6 +12,7 @@
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/printk.h>
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#include <linux/completion.h>
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#include <linux/firmware.h>
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#include <linux/device.h>
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#include <linux/fs.h>
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@ -54,10 +55,9 @@ static ssize_t trigger_request_store(struct device *dev,
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int rc;
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char *name;
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name = kzalloc(count + 1, GFP_KERNEL);
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name = kstrndup(buf, count, GFP_KERNEL);
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if (!name)
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return -ENOSPC;
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memcpy(name, buf, count);
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pr_info("loading '%s'\n", name);
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@ -65,17 +65,73 @@ static ssize_t trigger_request_store(struct device *dev,
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release_firmware(test_firmware);
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test_firmware = NULL;
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rc = request_firmware(&test_firmware, name, dev);
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if (rc)
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if (rc) {
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pr_info("load of '%s' failed: %d\n", name, rc);
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pr_info("loaded: %zu\n", test_firmware ? test_firmware->size : 0);
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goto out;
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}
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pr_info("loaded: %zu\n", test_firmware->size);
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rc = count;
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out:
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mutex_unlock(&test_fw_mutex);
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kfree(name);
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return count;
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return rc;
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}
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static DEVICE_ATTR_WO(trigger_request);
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static DECLARE_COMPLETION(async_fw_done);
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static void trigger_async_request_cb(const struct firmware *fw, void *context)
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{
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test_firmware = fw;
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complete(&async_fw_done);
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}
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static ssize_t trigger_async_request_store(struct device *dev,
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struct device_attribute *attr,
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const char *buf, size_t count)
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{
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int rc;
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char *name;
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name = kstrndup(buf, count, GFP_KERNEL);
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if (!name)
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return -ENOSPC;
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pr_info("loading '%s'\n", name);
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mutex_lock(&test_fw_mutex);
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release_firmware(test_firmware);
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test_firmware = NULL;
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rc = request_firmware_nowait(THIS_MODULE, 1, name, dev, GFP_KERNEL,
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NULL, trigger_async_request_cb);
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if (rc) {
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pr_info("async load of '%s' failed: %d\n", name, rc);
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kfree(name);
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goto out;
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}
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/* Free 'name' ASAP, to test for race conditions */
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kfree(name);
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wait_for_completion(&async_fw_done);
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if (test_firmware) {
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pr_info("loaded: %zu\n", test_firmware->size);
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rc = count;
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} else {
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pr_err("failed to async load firmware\n");
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rc = -ENODEV;
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}
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out:
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mutex_unlock(&test_fw_mutex);
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return rc;
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}
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static DEVICE_ATTR_WO(trigger_async_request);
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static int __init test_firmware_init(void)
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{
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int rc;
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@ -92,9 +148,20 @@ static int __init test_firmware_init(void)
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goto dereg;
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}
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rc = device_create_file(test_fw_misc_device.this_device,
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&dev_attr_trigger_async_request);
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if (rc) {
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pr_err("could not create async sysfs interface: %d\n", rc);
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goto remove_file;
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}
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pr_warn("interface ready\n");
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return 0;
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remove_file:
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device_remove_file(test_fw_misc_device.this_device,
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&dev_attr_trigger_async_request);
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dereg:
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misc_deregister(&test_fw_misc_device);
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return rc;
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@ -105,6 +172,8 @@ module_init(test_firmware_init);
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static void __exit test_firmware_exit(void)
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{
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release_firmware(test_firmware);
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device_remove_file(test_fw_misc_device.this_device,
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&dev_attr_trigger_async_request);
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device_remove_file(test_fw_misc_device.this_device,
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&dev_attr_trigger_request);
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misc_deregister(&test_fw_misc_device);
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|
|
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@ -1,10 +1,12 @@
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TARGETS = breakpoints
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TARGETS += capabilities
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TARGETS += cpu-hotplug
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TARGETS += efivarfs
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TARGETS += exec
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TARGETS += firmware
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TARGETS += ftrace
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TARGETS += futex
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TARGETS += ipc
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TARGETS += kcmp
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TARGETS += lib
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TARGETS += membarrier
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@ -0,0 +1 @@
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breakpoint_test
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@ -1,18 +1,15 @@
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all:
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TEST_FILES := validate_cap
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TEST_PROGS := test_execve
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BINARIES := $(TEST_FILES) $(TEST_PROGS)
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CFLAGS += -O2 -g -std=gnu99 -Wall
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LDLIBS += -lcap-ng -lrt -ldl
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all: $(BINARIES)
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clean:
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$(RM) $(BINARIES)
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include ../lib.mk
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.PHONY: all clean
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TARGETS := validate_cap test_execve
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TEST_PROGS := test_execve
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CFLAGS := -O2 -g -std=gnu99 -Wall -lcap-ng
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all: $(TARGETS)
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clean:
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$(RM) $(TARGETS)
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$(TARGETS): %: %.c
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$(CC) -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
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@ -48,8 +48,21 @@ echo "ABCD0123" >"$FW"
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NAME=$(basename "$FW")
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if printf '\000' >"$DIR"/trigger_request; then
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echo "$0: empty filename should not succeed" >&2
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exit 1
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fi
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if printf '\000' >"$DIR"/trigger_async_request; then
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echo "$0: empty filename should not succeed (async)" >&2
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exit 1
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fi
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# Request a firmware that doesn't exist, it should fail.
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echo -n "nope-$NAME" >"$DIR"/trigger_request
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if echo -n "nope-$NAME" >"$DIR"/trigger_request; then
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echo "$0: firmware shouldn't have loaded" >&2
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exit 1
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fi
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if diff -q "$FW" /dev/test_firmware >/dev/null ; then
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echo "$0: firmware was not expected to match" >&2
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exit 1
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@ -74,4 +87,18 @@ else
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echo "$0: filesystem loading works"
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fi
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# Try the asynchronous version too
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if ! echo -n "$NAME" >"$DIR"/trigger_async_request ; then
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echo "$0: could not trigger async request" >&2
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exit 1
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fi
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# Verify the contents are what we expect.
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if ! diff -q "$FW" /dev/test_firmware >/dev/null ; then
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echo "$0: firmware was not loaded (async)" >&2
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exit 1
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else
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echo "$0: async filesystem loading works"
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fi
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exit 0
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@ -0,0 +1,15 @@
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CC := $(CROSS_COMPILE)gcc
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CFLAGS := $(CFLAGS) -Wall -D_GNU_SOURCE
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LDFLAGS := $(LDFLAGS) -lm
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TARGETS := msr aperf
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TEST_PROGS := $(TARGETS) run.sh
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.PHONY: all clean
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all: $(TARGETS)
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$(TARGETS): $(HEADERS)
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clean:
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rm -f $(TARGETS)
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@ -0,0 +1,80 @@
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#include <math.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <sys/timeb.h>
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#include <sched.h>
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#include <errno.h>
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void usage(char *name) {
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printf ("Usage: %s cpunum\n", name);
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}
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int main(int argc, char **argv) {
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int i, cpu, fd;
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char msr_file_name[64];
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long long tsc, old_tsc, new_tsc;
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long long aperf, old_aperf, new_aperf;
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long long mperf, old_mperf, new_mperf;
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struct timeb before, after;
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long long int start, finish, total;
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cpu_set_t cpuset;
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if (argc != 2) {
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usage(argv[0]);
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return 1;
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}
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errno = 0;
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cpu = strtol(argv[1], (char **) NULL, 10);
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|
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if (errno) {
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usage(argv[0]);
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return 1;
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}
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|
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sprintf(msr_file_name, "/dev/cpu/%d/msr", cpu);
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fd = open(msr_file_name, O_RDONLY);
|
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|
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if (fd == -1) {
|
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perror("Failed to open");
|
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return 1;
|
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}
|
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|
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CPU_ZERO(&cpuset);
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CPU_SET(cpu, &cpuset);
|
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|
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if (sched_setaffinity(0, sizeof(cpu_set_t), &cpuset)) {
|
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perror("Failed to set cpu affinity");
|
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return 1;
|
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}
|
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|
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ftime(&before);
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pread(fd, &old_tsc, sizeof(old_tsc), 0x10);
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pread(fd, &old_aperf, sizeof(old_mperf), 0xe7);
|
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pread(fd, &old_mperf, sizeof(old_aperf), 0xe8);
|
||||
|
||||
for (i=0; i<0x8fffffff; i++) {
|
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sqrt(i);
|
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}
|
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|
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ftime(&after);
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pread(fd, &new_tsc, sizeof(new_tsc), 0x10);
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pread(fd, &new_aperf, sizeof(new_mperf), 0xe7);
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pread(fd, &new_mperf, sizeof(new_aperf), 0xe8);
|
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|
||||
tsc = new_tsc-old_tsc;
|
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aperf = new_aperf-old_aperf;
|
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mperf = new_mperf-old_mperf;
|
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|
||||
start = before.time*1000 + before.millitm;
|
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finish = after.time*1000 + after.millitm;
|
||||
total = finish - start;
|
||||
|
||||
printf("runTime: %4.2f\n", 1.0*total/1000);
|
||||
printf("freq: %7.0f\n", tsc / (1.0*aperf / (1.0 * mperf)) / total);
|
||||
return 0;
|
||||
}
|
|
@ -0,0 +1,39 @@
|
|||
#include <math.h>
|
||||
#include <unistd.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <fcntl.h>
|
||||
#include <sys/timeb.h>
|
||||
#include <sched.h>
|
||||
#include <errno.h>
|
||||
|
||||
|
||||
int main(int argc, char **argv) {
|
||||
int cpu, fd;
|
||||
long long msr;
|
||||
char msr_file_name[64];
|
||||
|
||||
if (argc != 2)
|
||||
return 1;
|
||||
|
||||
errno = 0;
|
||||
cpu = strtol(argv[1], (char **) NULL, 10);
|
||||
|
||||
if (errno)
|
||||
return 1;
|
||||
|
||||
sprintf(msr_file_name, "/dev/cpu/%d/msr", cpu);
|
||||
fd = open(msr_file_name, O_RDONLY);
|
||||
|
||||
if (fd == -1) {
|
||||
perror("Failed to open");
|
||||
return 1;
|
||||
}
|
||||
|
||||
pread(fd, &msr, sizeof(msr), 0x199);
|
||||
|
||||
printf("msr 0x199: 0x%llx\n", msr);
|
||||
return 0;
|
||||
}
|
|
@ -0,0 +1,113 @@
|
|||
#!/bin/bash
|
||||
#
|
||||
# This test runs on Intel x86 based hardware which support the intel_pstate
|
||||
# driver. The test checks the frequency settings from the maximum turbo
|
||||
# state to the minimum supported frequency, in decrements of 100MHz. The
|
||||
# test runs the aperf.c program to put load on each processor.
|
||||
#
|
||||
# The results are displayed in a table which indicate the "Target" state,
|
||||
# or the requested frequency in MHz, the Actual frequency, as read from
|
||||
# /proc/cpuinfo, the difference between the Target and Actual frequencies,
|
||||
# and the value of MSR 0x199 (MSR_IA32_PERF_CTL) which indicates what
|
||||
# pstate the cpu is in, and the value of
|
||||
# /sys/devices/system/cpu/intel_pstate/max_perf_pct X maximum turbo state
|
||||
#
|
||||
# Notes: In some cases several frequency values may be placed in the
|
||||
# /tmp/result.X files. This is done on purpose in order to catch cases
|
||||
# where the pstate driver may not be working at all. There is the case
|
||||
# where, for example, several "similar" frequencies are in the file:
|
||||
#
|
||||
#
|
||||
#/tmp/result.3100:1:cpu MHz : 2899.980
|
||||
#/tmp/result.3100:2:cpu MHz : 2900.000
|
||||
#/tmp/result.3100:3:msr 0x199: 0x1e00
|
||||
#/tmp/result.3100:4:max_perf_pct 94
|
||||
#
|
||||
# and the test will error out in those cases. The result.X file can be checked
|
||||
# for consistency and modified to remove the extra MHz values. The result.X
|
||||
# files can be re-evaluated by setting EVALUATE_ONLY to 1 below.
|
||||
|
||||
EVALUATE_ONLY=0
|
||||
|
||||
max_cpus=$(($(nproc)-1))
|
||||
|
||||
# compile programs
|
||||
gcc -o aperf aperf.c -lm
|
||||
[ $? -ne 0 ] && echo "Problem compiling aperf.c." && exit 1
|
||||
gcc -o msr msr.c -lm
|
||||
[ $? -ne 0 ] && echo "Problem compiling msr.c." && exit 1
|
||||
|
||||
function run_test () {
|
||||
|
||||
file_ext=$1
|
||||
for cpu in `seq 0 $max_cpus`
|
||||
do
|
||||
echo "launching aperf load on $cpu"
|
||||
./aperf $cpu &
|
||||
done
|
||||
|
||||
echo "sleeping for 5 seconds"
|
||||
sleep 5
|
||||
num_freqs=$(cat /proc/cpuinfo | grep MHz | sort -u | wc -l)
|
||||
if [ $num_freqs -le 2 ]; then
|
||||
cat /proc/cpuinfo | grep MHz | sort -u | tail -1 > /tmp/result.$1
|
||||
else
|
||||
cat /proc/cpuinfo | grep MHz | sort -u > /tmp/result.$1
|
||||
fi
|
||||
./msr 0 >> /tmp/result.$1
|
||||
|
||||
max_perf_pct=$(cat /sys/devices/system/cpu/intel_pstate/max_perf_pct)
|
||||
echo "max_perf_pct $max_perf_pct" >> /tmp/result.$1
|
||||
|
||||
for job in `jobs -p`
|
||||
do
|
||||
echo "waiting for job id $job"
|
||||
wait $job
|
||||
done
|
||||
}
|
||||
|
||||
#
|
||||
# MAIN (ALL UNITS IN MHZ)
|
||||
#
|
||||
|
||||
# Get the marketing frequency
|
||||
_mkt_freq=$(cat /proc/cpuinfo | grep -m 1 "model name" | awk '{print $NF}')
|
||||
_mkt_freq=$(echo $_mkt_freq | tr -d [:alpha:][:punct:])
|
||||
mkt_freq=${_mkt_freq}0
|
||||
|
||||
# Get the ranges from cpupower
|
||||
_min_freq=$(cpupower frequency-info -l | tail -1 | awk ' { print $1 } ')
|
||||
min_freq=$(($_min_freq / 1000))
|
||||
_max_freq=$(cpupower frequency-info -l | tail -1 | awk ' { print $2 } ')
|
||||
max_freq=$(($_max_freq / 1000))
|
||||
|
||||
|
||||
for freq in `seq $max_freq -100 $min_freq`
|
||||
do
|
||||
echo "Setting maximum frequency to $freq"
|
||||
cpupower frequency-set -g powersave --max=${freq}MHz >& /dev/null
|
||||
[ $EVALUATE_ONLY -eq 0 ] && run_test $freq
|
||||
done
|
||||
|
||||
echo "=============================================================================="
|
||||
|
||||
echo "The marketing frequency of the cpu is $mkt_freq MHz"
|
||||
echo "The maximum frequency of the cpu is $max_freq MHz"
|
||||
echo "The minimum frequency of the cpu is $min_freq MHz"
|
||||
|
||||
cpupower frequency-set -g powersave --max=${max_freq}MHz >& /dev/null
|
||||
|
||||
# make a pretty table
|
||||
echo "Target Actual Difference MSR(0x199) max_perf_pct"
|
||||
for freq in `seq $max_freq -100 $min_freq`
|
||||
do
|
||||
result_freq=$(cat /tmp/result.${freq} | grep "cpu MHz" | awk ' { print $4 } ' | awk -F "." ' { print $1 } ')
|
||||
msr=$(cat /tmp/result.${freq} | grep "msr" | awk ' { print $3 } ')
|
||||
max_perf_pct=$(cat /tmp/result.${freq} | grep "max_perf_pct" | awk ' { print $2 } ' )
|
||||
if [ $result_freq -eq $freq ]; then
|
||||
echo " $freq $result_freq 0 $msr $(($max_perf_pct*3300))"
|
||||
else
|
||||
echo " $freq $result_freq $(($result_freq-$freq)) $msr $(($max_perf_pct*$max_freq))"
|
||||
fi
|
||||
done
|
||||
exit 0
|
|
@ -0,0 +1 @@
|
|||
peeksiginfo
|
|
@ -42,6 +42,7 @@
|
|||
#define TEST_HARNESS_H_
|
||||
|
||||
#define _GNU_SOURCE
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
@ -370,8 +371,8 @@
|
|||
__typeof__(_expected) __exp = (_expected); \
|
||||
__typeof__(_seen) __seen = (_seen); \
|
||||
if (!(__exp _t __seen)) { \
|
||||
unsigned long long __exp_print = (unsigned long long)__exp; \
|
||||
unsigned long long __seen_print = (unsigned long long)__seen; \
|
||||
unsigned long long __exp_print = (uintptr_t)__exp; \
|
||||
unsigned long long __seen_print = (uintptr_t)__seen; \
|
||||
__TH_LOG("Expected %s (%llu) %s %s (%llu)", \
|
||||
#_expected, __exp_print, #_t, \
|
||||
#_seen, __seen_print); \
|
||||
|
|
|
@ -16,3 +16,4 @@ set-timer-lat
|
|||
skew_consistency
|
||||
threadtest
|
||||
valid-adjtimex
|
||||
adjtick
|
||||
|
|
|
@ -2,3 +2,8 @@ hugepage-mmap
|
|||
hugepage-shm
|
||||
map_hugetlb
|
||||
thuge-gen
|
||||
compaction_test
|
||||
mlock2-tests
|
||||
on-fault-limit
|
||||
transhuge-stress
|
||||
userfaultfd
|
||||
|
|
Loading…
Reference in New Issue