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![Rob Herring](/assets/img/avatar_default.png)
of_unittest_pci_node test depends on both CONFIG_PCI_DYNAMIC_OF_NODES
and CONFIG_OF_OVERLAY. Move the test into the existing
CONFIG_OF_OVERLAY ifdef and rework the CONFIG_PCI_DYNAMIC_OF_NODES
dependency to use IS_ENABLED() instead. This reduces the combinations to
build.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202308241954.oRNfVqmB-lkp@intel.com/
Fixes: 26409dd045
("of: unittest: Add pci_dt_testdrv pci driver")
Cc: Lizhi Hou <lizhi.hou@amd.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20230824221743.1581707-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
4053 lines
115 KiB
C
4053 lines
115 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Self tests for device tree subsystem
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*/
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#define pr_fmt(fmt) "### dt-test ### " fmt
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#include <linux/memblock.h>
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#include <linux/clk.h>
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#include <linux/dma-direct.h> /* to test phys_to_dma/dma_to_phys */
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#include <linux/err.h>
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#include <linux/errno.h>
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#include <linux/hashtable.h>
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#include <linux/libfdt.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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#include <linux/of_fdt.h>
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#include <linux/of_irq.h>
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#include <linux/of_platform.h>
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#include <linux/list.h>
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#include <linux/mutex.h>
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#include <linux/slab.h>
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#include <linux/device.h>
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#include <linux/platform_device.h>
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#include <linux/pci.h>
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#include <linux/kernel.h>
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#include <linux/i2c.h>
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#include <linux/i2c-mux.h>
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#include <linux/gpio/driver.h>
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#include <linux/bitops.h>
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#include "of_private.h"
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static struct unittest_results {
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int passed;
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int failed;
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} unittest_results;
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#define unittest(result, fmt, ...) ({ \
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bool failed = !(result); \
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if (failed) { \
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unittest_results.failed++; \
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pr_err("FAIL %s():%i " fmt, __func__, __LINE__, ##__VA_ARGS__); \
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} else { \
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unittest_results.passed++; \
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pr_info("pass %s():%i\n", __func__, __LINE__); \
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} \
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failed; \
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})
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/*
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* Expected message may have a message level other than KERN_INFO.
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* Print the expected message only if the current loglevel will allow
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* the actual message to print.
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*
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* Do not use EXPECT_BEGIN(), EXPECT_END(), EXPECT_NOT_BEGIN(), or
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* EXPECT_NOT_END() to report messages expected to be reported or not
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* reported by pr_debug().
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*/
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#define EXPECT_BEGIN(level, fmt, ...) \
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printk(level pr_fmt("EXPECT \\ : ") fmt, ##__VA_ARGS__)
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#define EXPECT_END(level, fmt, ...) \
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printk(level pr_fmt("EXPECT / : ") fmt, ##__VA_ARGS__)
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#define EXPECT_NOT_BEGIN(level, fmt, ...) \
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printk(level pr_fmt("EXPECT_NOT \\ : ") fmt, ##__VA_ARGS__)
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#define EXPECT_NOT_END(level, fmt, ...) \
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printk(level pr_fmt("EXPECT_NOT / : ") fmt, ##__VA_ARGS__)
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static void __init of_unittest_find_node_by_name(void)
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{
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struct device_node *np;
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const char *options, *name;
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np = of_find_node_by_path("/testcase-data");
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name = kasprintf(GFP_KERNEL, "%pOF", np);
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unittest(np && name && !strcmp("/testcase-data", name),
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"find /testcase-data failed\n");
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of_node_put(np);
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kfree(name);
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/* Test if trailing '/' works */
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np = of_find_node_by_path("/testcase-data/");
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unittest(!np, "trailing '/' on /testcase-data/ should fail\n");
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np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a");
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name = kasprintf(GFP_KERNEL, "%pOF", np);
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unittest(np && name && !strcmp("/testcase-data/phandle-tests/consumer-a", name),
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"find /testcase-data/phandle-tests/consumer-a failed\n");
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of_node_put(np);
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kfree(name);
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np = of_find_node_by_path("testcase-alias");
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name = kasprintf(GFP_KERNEL, "%pOF", np);
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unittest(np && name && !strcmp("/testcase-data", name),
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"find testcase-alias failed\n");
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of_node_put(np);
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kfree(name);
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/* Test if trailing '/' works on aliases */
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np = of_find_node_by_path("testcase-alias/");
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unittest(!np, "trailing '/' on testcase-alias/ should fail\n");
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np = of_find_node_by_path("testcase-alias/phandle-tests/consumer-a");
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name = kasprintf(GFP_KERNEL, "%pOF", np);
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unittest(np && name && !strcmp("/testcase-data/phandle-tests/consumer-a", name),
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"find testcase-alias/phandle-tests/consumer-a failed\n");
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of_node_put(np);
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kfree(name);
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np = of_find_node_by_path("/testcase-data/missing-path");
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unittest(!np, "non-existent path returned node %pOF\n", np);
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of_node_put(np);
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np = of_find_node_by_path("missing-alias");
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unittest(!np, "non-existent alias returned node %pOF\n", np);
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of_node_put(np);
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np = of_find_node_by_path("testcase-alias/missing-path");
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unittest(!np, "non-existent alias with relative path returned node %pOF\n", np);
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of_node_put(np);
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np = of_find_node_opts_by_path("/testcase-data:testoption", &options);
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unittest(np && !strcmp("testoption", options),
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"option path test failed\n");
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of_node_put(np);
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np = of_find_node_opts_by_path("/testcase-data:test/option", &options);
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unittest(np && !strcmp("test/option", options),
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"option path test, subcase #1 failed\n");
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of_node_put(np);
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np = of_find_node_opts_by_path("/testcase-data/testcase-device1:test/option", &options);
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unittest(np && !strcmp("test/option", options),
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"option path test, subcase #2 failed\n");
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of_node_put(np);
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np = of_find_node_opts_by_path("/testcase-data:testoption", NULL);
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unittest(np, "NULL option path test failed\n");
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of_node_put(np);
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np = of_find_node_opts_by_path("testcase-alias:testaliasoption",
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&options);
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unittest(np && !strcmp("testaliasoption", options),
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"option alias path test failed\n");
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of_node_put(np);
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np = of_find_node_opts_by_path("testcase-alias:test/alias/option",
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&options);
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unittest(np && !strcmp("test/alias/option", options),
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"option alias path test, subcase #1 failed\n");
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of_node_put(np);
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np = of_find_node_opts_by_path("testcase-alias:testaliasoption", NULL);
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unittest(np, "NULL option alias path test failed\n");
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of_node_put(np);
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options = "testoption";
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np = of_find_node_opts_by_path("testcase-alias", &options);
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unittest(np && !options, "option clearing test failed\n");
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of_node_put(np);
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options = "testoption";
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np = of_find_node_opts_by_path("/", &options);
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unittest(np && !options, "option clearing root node test failed\n");
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of_node_put(np);
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}
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static void __init of_unittest_dynamic(void)
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{
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struct device_node *np;
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struct property *prop;
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np = of_find_node_by_path("/testcase-data");
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if (!np) {
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pr_err("missing testcase data\n");
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return;
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}
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/* Array of 4 properties for the purpose of testing */
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prop = kcalloc(4, sizeof(*prop), GFP_KERNEL);
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if (!prop) {
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unittest(0, "kzalloc() failed\n");
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return;
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}
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/* Add a new property - should pass*/
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prop->name = "new-property";
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prop->value = "new-property-data";
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prop->length = strlen(prop->value) + 1;
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unittest(of_add_property(np, prop) == 0, "Adding a new property failed\n");
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/* Try to add an existing property - should fail */
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prop++;
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prop->name = "new-property";
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prop->value = "new-property-data-should-fail";
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prop->length = strlen(prop->value) + 1;
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unittest(of_add_property(np, prop) != 0,
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"Adding an existing property should have failed\n");
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/* Try to modify an existing property - should pass */
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prop->value = "modify-property-data-should-pass";
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prop->length = strlen(prop->value) + 1;
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unittest(of_update_property(np, prop) == 0,
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"Updating an existing property should have passed\n");
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/* Try to modify non-existent property - should pass*/
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prop++;
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prop->name = "modify-property";
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prop->value = "modify-missing-property-data-should-pass";
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prop->length = strlen(prop->value) + 1;
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unittest(of_update_property(np, prop) == 0,
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"Updating a missing property should have passed\n");
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/* Remove property - should pass */
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unittest(of_remove_property(np, prop) == 0,
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"Removing a property should have passed\n");
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/* Adding very large property - should pass */
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prop++;
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prop->name = "large-property-PAGE_SIZEx8";
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prop->length = PAGE_SIZE * 8;
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prop->value = kzalloc(prop->length, GFP_KERNEL);
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unittest(prop->value != NULL, "Unable to allocate large buffer\n");
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if (prop->value)
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unittest(of_add_property(np, prop) == 0,
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"Adding a large property should have passed\n");
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}
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static int __init of_unittest_check_node_linkage(struct device_node *np)
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{
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struct device_node *child;
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int count = 0, rc;
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for_each_child_of_node(np, child) {
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if (child->parent != np) {
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pr_err("Child node %pOFn links to wrong parent %pOFn\n",
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child, np);
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rc = -EINVAL;
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goto put_child;
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}
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rc = of_unittest_check_node_linkage(child);
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if (rc < 0)
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goto put_child;
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count += rc;
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}
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return count + 1;
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put_child:
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of_node_put(child);
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return rc;
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}
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static void __init of_unittest_check_tree_linkage(void)
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{
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struct device_node *np;
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int allnode_count = 0, child_count;
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if (!of_root)
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return;
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for_each_of_allnodes(np)
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allnode_count++;
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child_count = of_unittest_check_node_linkage(of_root);
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unittest(child_count > 0, "Device node data structure is corrupted\n");
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unittest(child_count == allnode_count,
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"allnodes list size (%i) doesn't match sibling lists size (%i)\n",
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allnode_count, child_count);
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pr_debug("allnodes list size (%i); sibling lists size (%i)\n", allnode_count, child_count);
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}
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static void __init of_unittest_printf_one(struct device_node *np, const char *fmt,
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const char *expected)
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{
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unsigned char *buf;
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int buf_size;
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int size, i;
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buf_size = strlen(expected) + 10;
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buf = kmalloc(buf_size, GFP_KERNEL);
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if (!buf)
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return;
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/* Baseline; check conversion with a large size limit */
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memset(buf, 0xff, buf_size);
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size = snprintf(buf, buf_size - 2, fmt, np);
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/* use strcmp() instead of strncmp() here to be absolutely sure strings match */
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unittest((strcmp(buf, expected) == 0) && (buf[size+1] == 0xff),
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"sprintf failed; fmt='%s' expected='%s' rslt='%s'\n",
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fmt, expected, buf);
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/* Make sure length limits work */
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size++;
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for (i = 0; i < 2; i++, size--) {
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/* Clear the buffer, and make sure it works correctly still */
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memset(buf, 0xff, buf_size);
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snprintf(buf, size+1, fmt, np);
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unittest(strncmp(buf, expected, size) == 0 && (buf[size+1] == 0xff),
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"snprintf failed; size=%i fmt='%s' expected='%s' rslt='%s'\n",
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size, fmt, expected, buf);
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}
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kfree(buf);
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}
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static void __init of_unittest_printf(void)
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{
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struct device_node *np;
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const char *full_name = "/testcase-data/platform-tests/test-device@1/dev@100";
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char phandle_str[16] = "";
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np = of_find_node_by_path(full_name);
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if (!np) {
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unittest(np, "testcase data missing\n");
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return;
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}
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num_to_str(phandle_str, sizeof(phandle_str), np->phandle, 0);
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of_unittest_printf_one(np, "%pOF", full_name);
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of_unittest_printf_one(np, "%pOFf", full_name);
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of_unittest_printf_one(np, "%pOFn", "dev");
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of_unittest_printf_one(np, "%2pOFn", "dev");
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of_unittest_printf_one(np, "%5pOFn", " dev");
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of_unittest_printf_one(np, "%pOFnc", "dev:test-sub-device");
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of_unittest_printf_one(np, "%pOFp", phandle_str);
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of_unittest_printf_one(np, "%pOFP", "dev@100");
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of_unittest_printf_one(np, "ABC %pOFP ABC", "ABC dev@100 ABC");
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of_unittest_printf_one(np, "%10pOFP", " dev@100");
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of_unittest_printf_one(np, "%-10pOFP", "dev@100 ");
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of_unittest_printf_one(of_root, "%pOFP", "/");
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of_unittest_printf_one(np, "%pOFF", "----");
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of_unittest_printf_one(np, "%pOFPF", "dev@100:----");
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of_unittest_printf_one(np, "%pOFPFPc", "dev@100:----:dev@100:test-sub-device");
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of_unittest_printf_one(np, "%pOFc", "test-sub-device");
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of_unittest_printf_one(np, "%pOFC",
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"\"test-sub-device\",\"test-compat2\",\"test-compat3\"");
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}
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struct node_hash {
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struct hlist_node node;
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struct device_node *np;
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};
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static DEFINE_HASHTABLE(phandle_ht, 8);
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static void __init of_unittest_check_phandles(void)
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{
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struct device_node *np;
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struct node_hash *nh;
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struct hlist_node *tmp;
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int i, dup_count = 0, phandle_count = 0;
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for_each_of_allnodes(np) {
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if (!np->phandle)
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continue;
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hash_for_each_possible(phandle_ht, nh, node, np->phandle) {
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if (nh->np->phandle == np->phandle) {
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pr_info("Duplicate phandle! %i used by %pOF and %pOF\n",
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np->phandle, nh->np, np);
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dup_count++;
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break;
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}
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}
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nh = kzalloc(sizeof(*nh), GFP_KERNEL);
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if (!nh)
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return;
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nh->np = np;
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hash_add(phandle_ht, &nh->node, np->phandle);
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phandle_count++;
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}
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unittest(dup_count == 0, "Found %i duplicates in %i phandles\n",
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dup_count, phandle_count);
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|
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/* Clean up */
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hash_for_each_safe(phandle_ht, i, tmp, nh, node) {
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hash_del(&nh->node);
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kfree(nh);
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}
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}
|
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static void __init of_unittest_parse_phandle_with_args(void)
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{
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struct device_node *np;
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struct of_phandle_args args;
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int i, rc;
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np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a");
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if (!np) {
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pr_err("missing testcase data\n");
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return;
|
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}
|
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rc = of_count_phandle_with_args(np, "phandle-list", "#phandle-cells");
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unittest(rc == 7, "of_count_phandle_with_args() returned %i, expected 7\n", rc);
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|
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for (i = 0; i < 8; i++) {
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bool passed = true;
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|
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memset(&args, 0, sizeof(args));
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rc = of_parse_phandle_with_args(np, "phandle-list",
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"#phandle-cells", i, &args);
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|
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/* Test the values from tests-phandle.dtsi */
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switch (i) {
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case 0:
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passed &= !rc;
|
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passed &= (args.args_count == 1);
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passed &= (args.args[0] == (i + 1));
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break;
|
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case 1:
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passed &= !rc;
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passed &= (args.args_count == 2);
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passed &= (args.args[0] == (i + 1));
|
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passed &= (args.args[1] == 0);
|
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break;
|
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case 2:
|
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passed &= (rc == -ENOENT);
|
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break;
|
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case 3:
|
|
passed &= !rc;
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passed &= (args.args_count == 3);
|
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passed &= (args.args[0] == (i + 1));
|
|
passed &= (args.args[1] == 4);
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passed &= (args.args[2] == 3);
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break;
|
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case 4:
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passed &= !rc;
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passed &= (args.args_count == 2);
|
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passed &= (args.args[0] == (i + 1));
|
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passed &= (args.args[1] == 100);
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break;
|
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case 5:
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passed &= !rc;
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passed &= (args.args_count == 0);
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break;
|
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case 6:
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passed &= !rc;
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passed &= (args.args_count == 1);
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passed &= (args.args[0] == (i + 1));
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break;
|
|
case 7:
|
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passed &= (rc == -ENOENT);
|
|
break;
|
|
default:
|
|
passed = false;
|
|
}
|
|
|
|
unittest(passed, "index %i - data error on node %pOF rc=%i\n",
|
|
i, args.np, rc);
|
|
}
|
|
|
|
/* Check for missing list property */
|
|
memset(&args, 0, sizeof(args));
|
|
rc = of_parse_phandle_with_args(np, "phandle-list-missing",
|
|
"#phandle-cells", 0, &args);
|
|
unittest(rc == -ENOENT, "expected:%i got:%i\n", -ENOENT, rc);
|
|
rc = of_count_phandle_with_args(np, "phandle-list-missing",
|
|
"#phandle-cells");
|
|
unittest(rc == -ENOENT, "expected:%i got:%i\n", -ENOENT, rc);
|
|
|
|
/* Check for missing cells property */
|
|
memset(&args, 0, sizeof(args));
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1");
|
|
|
|
rc = of_parse_phandle_with_args(np, "phandle-list",
|
|
"#phandle-cells-missing", 0, &args);
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1");
|
|
|
|
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1");
|
|
|
|
rc = of_count_phandle_with_args(np, "phandle-list",
|
|
"#phandle-cells-missing");
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1");
|
|
|
|
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
|
|
|
|
/* Check for bad phandle in list */
|
|
memset(&args, 0, sizeof(args));
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: /testcase-data/phandle-tests/consumer-a: could not find phandle");
|
|
|
|
rc = of_parse_phandle_with_args(np, "phandle-list-bad-phandle",
|
|
"#phandle-cells", 0, &args);
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: /testcase-data/phandle-tests/consumer-a: could not find phandle");
|
|
|
|
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: /testcase-data/phandle-tests/consumer-a: could not find phandle");
|
|
|
|
rc = of_count_phandle_with_args(np, "phandle-list-bad-phandle",
|
|
"#phandle-cells");
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: /testcase-data/phandle-tests/consumer-a: could not find phandle");
|
|
|
|
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
|
|
|
|
/* Check for incorrectly formed argument list */
|
|
memset(&args, 0, sizeof(args));
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found 1");
|
|
|
|
rc = of_parse_phandle_with_args(np, "phandle-list-bad-args",
|
|
"#phandle-cells", 1, &args);
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found 1");
|
|
|
|
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found 1");
|
|
|
|
rc = of_count_phandle_with_args(np, "phandle-list-bad-args",
|
|
"#phandle-cells");
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found 1");
|
|
|
|
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
|
|
}
|
|
|
|
static void __init of_unittest_parse_phandle_with_args_map(void)
|
|
{
|
|
struct device_node *np, *p0, *p1, *p2, *p3;
|
|
struct of_phandle_args args;
|
|
int i, rc;
|
|
|
|
np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-b");
|
|
if (!np) {
|
|
pr_err("missing testcase data\n");
|
|
return;
|
|
}
|
|
|
|
p0 = of_find_node_by_path("/testcase-data/phandle-tests/provider0");
|
|
if (!p0) {
|
|
pr_err("missing testcase data\n");
|
|
return;
|
|
}
|
|
|
|
p1 = of_find_node_by_path("/testcase-data/phandle-tests/provider1");
|
|
if (!p1) {
|
|
pr_err("missing testcase data\n");
|
|
return;
|
|
}
|
|
|
|
p2 = of_find_node_by_path("/testcase-data/phandle-tests/provider2");
|
|
if (!p2) {
|
|
pr_err("missing testcase data\n");
|
|
return;
|
|
}
|
|
|
|
p3 = of_find_node_by_path("/testcase-data/phandle-tests/provider3");
|
|
if (!p3) {
|
|
pr_err("missing testcase data\n");
|
|
return;
|
|
}
|
|
|
|
rc = of_count_phandle_with_args(np, "phandle-list", "#phandle-cells");
|
|
unittest(rc == 7, "of_count_phandle_with_args() returned %i, expected 7\n", rc);
|
|
|
|
for (i = 0; i < 8; i++) {
|
|
bool passed = true;
|
|
|
|
memset(&args, 0, sizeof(args));
|
|
rc = of_parse_phandle_with_args_map(np, "phandle-list",
|
|
"phandle", i, &args);
|
|
|
|
/* Test the values from tests-phandle.dtsi */
|
|
switch (i) {
|
|
case 0:
|
|
passed &= !rc;
|
|
passed &= (args.np == p1);
|
|
passed &= (args.args_count == 1);
|
|
passed &= (args.args[0] == 1);
|
|
break;
|
|
case 1:
|
|
passed &= !rc;
|
|
passed &= (args.np == p3);
|
|
passed &= (args.args_count == 3);
|
|
passed &= (args.args[0] == 2);
|
|
passed &= (args.args[1] == 5);
|
|
passed &= (args.args[2] == 3);
|
|
break;
|
|
case 2:
|
|
passed &= (rc == -ENOENT);
|
|
break;
|
|
case 3:
|
|
passed &= !rc;
|
|
passed &= (args.np == p0);
|
|
passed &= (args.args_count == 0);
|
|
break;
|
|
case 4:
|
|
passed &= !rc;
|
|
passed &= (args.np == p1);
|
|
passed &= (args.args_count == 1);
|
|
passed &= (args.args[0] == 3);
|
|
break;
|
|
case 5:
|
|
passed &= !rc;
|
|
passed &= (args.np == p0);
|
|
passed &= (args.args_count == 0);
|
|
break;
|
|
case 6:
|
|
passed &= !rc;
|
|
passed &= (args.np == p2);
|
|
passed &= (args.args_count == 2);
|
|
passed &= (args.args[0] == 15);
|
|
passed &= (args.args[1] == 0x20);
|
|
break;
|
|
case 7:
|
|
passed &= (rc == -ENOENT);
|
|
break;
|
|
default:
|
|
passed = false;
|
|
}
|
|
|
|
unittest(passed, "index %i - data error on node %s rc=%i\n",
|
|
i, args.np->full_name, rc);
|
|
}
|
|
|
|
/* Check for missing list property */
|
|
memset(&args, 0, sizeof(args));
|
|
rc = of_parse_phandle_with_args_map(np, "phandle-list-missing",
|
|
"phandle", 0, &args);
|
|
unittest(rc == -ENOENT, "expected:%i got:%i\n", -ENOENT, rc);
|
|
|
|
/* Check for missing cells,map,mask property */
|
|
memset(&args, 0, sizeof(args));
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: /testcase-data/phandle-tests/consumer-b: could not get #phandle-missing-cells for /testcase-data/phandle-tests/provider1");
|
|
|
|
rc = of_parse_phandle_with_args_map(np, "phandle-list",
|
|
"phandle-missing", 0, &args);
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: /testcase-data/phandle-tests/consumer-b: could not get #phandle-missing-cells for /testcase-data/phandle-tests/provider1");
|
|
|
|
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
|
|
|
|
/* Check for bad phandle in list */
|
|
memset(&args, 0, sizeof(args));
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: /testcase-data/phandle-tests/consumer-b: could not find phandle 12345678");
|
|
|
|
rc = of_parse_phandle_with_args_map(np, "phandle-list-bad-phandle",
|
|
"phandle", 0, &args);
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: /testcase-data/phandle-tests/consumer-b: could not find phandle 12345678");
|
|
|
|
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
|
|
|
|
/* Check for incorrectly formed argument list */
|
|
memset(&args, 0, sizeof(args));
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: /testcase-data/phandle-tests/consumer-b: #phandle-cells = 2 found 1");
|
|
|
|
rc = of_parse_phandle_with_args_map(np, "phandle-list-bad-args",
|
|
"phandle", 1, &args);
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: /testcase-data/phandle-tests/consumer-b: #phandle-cells = 2 found 1");
|
|
|
|
unittest(rc == -EINVAL, "expected:%i got:%i\n", -EINVAL, rc);
|
|
}
|
|
|
|
static void __init of_unittest_property_string(void)
|
|
{
|
|
const char *strings[4];
|
|
struct device_node *np;
|
|
int rc;
|
|
|
|
np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a");
|
|
if (!np) {
|
|
pr_err("No testcase data in device tree\n");
|
|
return;
|
|
}
|
|
|
|
rc = of_property_match_string(np, "phandle-list-names", "first");
|
|
unittest(rc == 0, "first expected:0 got:%i\n", rc);
|
|
rc = of_property_match_string(np, "phandle-list-names", "second");
|
|
unittest(rc == 1, "second expected:1 got:%i\n", rc);
|
|
rc = of_property_match_string(np, "phandle-list-names", "third");
|
|
unittest(rc == 2, "third expected:2 got:%i\n", rc);
|
|
rc = of_property_match_string(np, "phandle-list-names", "fourth");
|
|
unittest(rc == -ENODATA, "unmatched string; rc=%i\n", rc);
|
|
rc = of_property_match_string(np, "missing-property", "blah");
|
|
unittest(rc == -EINVAL, "missing property; rc=%i\n", rc);
|
|
rc = of_property_match_string(np, "empty-property", "blah");
|
|
unittest(rc == -ENODATA, "empty property; rc=%i\n", rc);
|
|
rc = of_property_match_string(np, "unterminated-string", "blah");
|
|
unittest(rc == -EILSEQ, "unterminated string; rc=%i\n", rc);
|
|
|
|
/* of_property_count_strings() tests */
|
|
rc = of_property_count_strings(np, "string-property");
|
|
unittest(rc == 1, "Incorrect string count; rc=%i\n", rc);
|
|
rc = of_property_count_strings(np, "phandle-list-names");
|
|
unittest(rc == 3, "Incorrect string count; rc=%i\n", rc);
|
|
rc = of_property_count_strings(np, "unterminated-string");
|
|
unittest(rc == -EILSEQ, "unterminated string; rc=%i\n", rc);
|
|
rc = of_property_count_strings(np, "unterminated-string-list");
|
|
unittest(rc == -EILSEQ, "unterminated string array; rc=%i\n", rc);
|
|
|
|
/* of_property_read_string_index() tests */
|
|
rc = of_property_read_string_index(np, "string-property", 0, strings);
|
|
unittest(rc == 0 && !strcmp(strings[0], "foobar"), "of_property_read_string_index() failure; rc=%i\n", rc);
|
|
strings[0] = NULL;
|
|
rc = of_property_read_string_index(np, "string-property", 1, strings);
|
|
unittest(rc == -ENODATA && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc);
|
|
rc = of_property_read_string_index(np, "phandle-list-names", 0, strings);
|
|
unittest(rc == 0 && !strcmp(strings[0], "first"), "of_property_read_string_index() failure; rc=%i\n", rc);
|
|
rc = of_property_read_string_index(np, "phandle-list-names", 1, strings);
|
|
unittest(rc == 0 && !strcmp(strings[0], "second"), "of_property_read_string_index() failure; rc=%i\n", rc);
|
|
rc = of_property_read_string_index(np, "phandle-list-names", 2, strings);
|
|
unittest(rc == 0 && !strcmp(strings[0], "third"), "of_property_read_string_index() failure; rc=%i\n", rc);
|
|
strings[0] = NULL;
|
|
rc = of_property_read_string_index(np, "phandle-list-names", 3, strings);
|
|
unittest(rc == -ENODATA && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc);
|
|
strings[0] = NULL;
|
|
rc = of_property_read_string_index(np, "unterminated-string", 0, strings);
|
|
unittest(rc == -EILSEQ && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc);
|
|
rc = of_property_read_string_index(np, "unterminated-string-list", 0, strings);
|
|
unittest(rc == 0 && !strcmp(strings[0], "first"), "of_property_read_string_index() failure; rc=%i\n", rc);
|
|
strings[0] = NULL;
|
|
rc = of_property_read_string_index(np, "unterminated-string-list", 2, strings); /* should fail */
|
|
unittest(rc == -EILSEQ && strings[0] == NULL, "of_property_read_string_index() failure; rc=%i\n", rc);
|
|
strings[1] = NULL;
|
|
|
|
/* of_property_read_string_array() tests */
|
|
rc = of_property_read_string_array(np, "string-property", strings, 4);
|
|
unittest(rc == 1, "Incorrect string count; rc=%i\n", rc);
|
|
rc = of_property_read_string_array(np, "phandle-list-names", strings, 4);
|
|
unittest(rc == 3, "Incorrect string count; rc=%i\n", rc);
|
|
rc = of_property_read_string_array(np, "unterminated-string", strings, 4);
|
|
unittest(rc == -EILSEQ, "unterminated string; rc=%i\n", rc);
|
|
/* -- An incorrectly formed string should cause a failure */
|
|
rc = of_property_read_string_array(np, "unterminated-string-list", strings, 4);
|
|
unittest(rc == -EILSEQ, "unterminated string array; rc=%i\n", rc);
|
|
/* -- parsing the correctly formed strings should still work: */
|
|
strings[2] = NULL;
|
|
rc = of_property_read_string_array(np, "unterminated-string-list", strings, 2);
|
|
unittest(rc == 2 && strings[2] == NULL, "of_property_read_string_array() failure; rc=%i\n", rc);
|
|
strings[1] = NULL;
|
|
rc = of_property_read_string_array(np, "phandle-list-names", strings, 1);
|
|
unittest(rc == 1 && strings[1] == NULL, "Overwrote end of string array; rc=%i, str='%s'\n", rc, strings[1]);
|
|
}
|
|
|
|
#define propcmp(p1, p2) (((p1)->length == (p2)->length) && \
|
|
(p1)->value && (p2)->value && \
|
|
!memcmp((p1)->value, (p2)->value, (p1)->length) && \
|
|
!strcmp((p1)->name, (p2)->name))
|
|
static void __init of_unittest_property_copy(void)
|
|
{
|
|
#ifdef CONFIG_OF_DYNAMIC
|
|
struct property p1 = { .name = "p1", .length = 0, .value = "" };
|
|
struct property p2 = { .name = "p2", .length = 5, .value = "abcd" };
|
|
struct property *new;
|
|
|
|
new = __of_prop_dup(&p1, GFP_KERNEL);
|
|
unittest(new && propcmp(&p1, new), "empty property didn't copy correctly\n");
|
|
kfree(new->value);
|
|
kfree(new->name);
|
|
kfree(new);
|
|
|
|
new = __of_prop_dup(&p2, GFP_KERNEL);
|
|
unittest(new && propcmp(&p2, new), "non-empty property didn't copy correctly\n");
|
|
kfree(new->value);
|
|
kfree(new->name);
|
|
kfree(new);
|
|
#endif
|
|
}
|
|
|
|
static void __init of_unittest_changeset(void)
|
|
{
|
|
#ifdef CONFIG_OF_DYNAMIC
|
|
int ret;
|
|
struct property *ppadd, padd = { .name = "prop-add", .length = 1, .value = "" };
|
|
struct property *ppname_n1, pname_n1 = { .name = "name", .length = 3, .value = "n1" };
|
|
struct property *ppname_n2, pname_n2 = { .name = "name", .length = 3, .value = "n2" };
|
|
struct property *ppname_n21, pname_n21 = { .name = "name", .length = 3, .value = "n21" };
|
|
struct property *ppupdate, pupdate = { .name = "prop-update", .length = 5, .value = "abcd" };
|
|
struct property *ppremove;
|
|
struct device_node *n1, *n2, *n21, *n22, *nchangeset, *nremove, *parent, *np;
|
|
static const char * const str_array[] = { "str1", "str2", "str3" };
|
|
const u32 u32_array[] = { 1, 2, 3 };
|
|
struct of_changeset chgset;
|
|
const char *propstr = NULL;
|
|
|
|
n1 = __of_node_dup(NULL, "n1");
|
|
unittest(n1, "testcase setup failure\n");
|
|
|
|
n2 = __of_node_dup(NULL, "n2");
|
|
unittest(n2, "testcase setup failure\n");
|
|
|
|
n21 = __of_node_dup(NULL, "n21");
|
|
unittest(n21, "testcase setup failure %p\n", n21);
|
|
|
|
nchangeset = of_find_node_by_path("/testcase-data/changeset");
|
|
nremove = of_get_child_by_name(nchangeset, "node-remove");
|
|
unittest(nremove, "testcase setup failure\n");
|
|
|
|
ppadd = __of_prop_dup(&padd, GFP_KERNEL);
|
|
unittest(ppadd, "testcase setup failure\n");
|
|
|
|
ppname_n1 = __of_prop_dup(&pname_n1, GFP_KERNEL);
|
|
unittest(ppname_n1, "testcase setup failure\n");
|
|
|
|
ppname_n2 = __of_prop_dup(&pname_n2, GFP_KERNEL);
|
|
unittest(ppname_n2, "testcase setup failure\n");
|
|
|
|
ppname_n21 = __of_prop_dup(&pname_n21, GFP_KERNEL);
|
|
unittest(ppname_n21, "testcase setup failure\n");
|
|
|
|
ppupdate = __of_prop_dup(&pupdate, GFP_KERNEL);
|
|
unittest(ppupdate, "testcase setup failure\n");
|
|
|
|
parent = nchangeset;
|
|
n1->parent = parent;
|
|
n2->parent = parent;
|
|
n21->parent = n2;
|
|
|
|
ppremove = of_find_property(parent, "prop-remove", NULL);
|
|
unittest(ppremove, "failed to find removal prop");
|
|
|
|
of_changeset_init(&chgset);
|
|
|
|
unittest(!of_changeset_attach_node(&chgset, n1), "fail attach n1\n");
|
|
unittest(!of_changeset_add_property(&chgset, n1, ppname_n1), "fail add prop name\n");
|
|
|
|
unittest(!of_changeset_attach_node(&chgset, n2), "fail attach n2\n");
|
|
unittest(!of_changeset_add_property(&chgset, n2, ppname_n2), "fail add prop name\n");
|
|
|
|
unittest(!of_changeset_detach_node(&chgset, nremove), "fail remove node\n");
|
|
unittest(!of_changeset_add_property(&chgset, n21, ppname_n21), "fail add prop name\n");
|
|
|
|
unittest(!of_changeset_attach_node(&chgset, n21), "fail attach n21\n");
|
|
|
|
unittest(!of_changeset_add_property(&chgset, parent, ppadd), "fail add prop prop-add\n");
|
|
unittest(!of_changeset_update_property(&chgset, parent, ppupdate), "fail update prop\n");
|
|
unittest(!of_changeset_remove_property(&chgset, parent, ppremove), "fail remove prop\n");
|
|
n22 = of_changeset_create_node(&chgset, n2, "n22");
|
|
unittest(n22, "fail create n22\n");
|
|
unittest(!of_changeset_add_prop_string(&chgset, n22, "prop-str", "abcd"),
|
|
"fail add prop prop-str");
|
|
unittest(!of_changeset_add_prop_string_array(&chgset, n22, "prop-str-array",
|
|
(const char **)str_array,
|
|
ARRAY_SIZE(str_array)),
|
|
"fail add prop prop-str-array");
|
|
unittest(!of_changeset_add_prop_u32_array(&chgset, n22, "prop-u32-array",
|
|
u32_array, ARRAY_SIZE(u32_array)),
|
|
"fail add prop prop-u32-array");
|
|
|
|
unittest(!of_changeset_apply(&chgset), "apply failed\n");
|
|
|
|
of_node_put(nchangeset);
|
|
|
|
/* Make sure node names are constructed correctly */
|
|
unittest((np = of_find_node_by_path("/testcase-data/changeset/n2/n21")),
|
|
"'%pOF' not added\n", n21);
|
|
of_node_put(np);
|
|
unittest((np = of_find_node_by_path("/testcase-data/changeset/n2/n22")),
|
|
"'%pOF' not added\n", n22);
|
|
of_node_put(np);
|
|
|
|
unittest(!of_changeset_revert(&chgset), "revert failed\n");
|
|
|
|
unittest(!of_find_node_by_path("/testcase-data/changeset/n2/n21"),
|
|
"'%pOF' still present after revert\n", n21);
|
|
|
|
ppremove = of_find_property(parent, "prop-remove", NULL);
|
|
unittest(ppremove, "failed to find removed prop after revert\n");
|
|
|
|
ret = of_property_read_string(parent, "prop-update", &propstr);
|
|
unittest(!ret, "failed to find updated prop after revert\n");
|
|
if (!ret)
|
|
unittest(strcmp(propstr, "hello") == 0, "original value not in updated property after revert");
|
|
|
|
of_changeset_destroy(&chgset);
|
|
|
|
of_node_put(n1);
|
|
of_node_put(n2);
|
|
of_node_put(n21);
|
|
of_node_put(n22);
|
|
#endif
|
|
}
|
|
|
|
static void __init of_unittest_dma_get_max_cpu_address(void)
|
|
{
|
|
struct device_node *np;
|
|
phys_addr_t cpu_addr;
|
|
|
|
if (!IS_ENABLED(CONFIG_OF_ADDRESS))
|
|
return;
|
|
|
|
np = of_find_node_by_path("/testcase-data/address-tests");
|
|
if (!np) {
|
|
pr_err("missing testcase data\n");
|
|
return;
|
|
}
|
|
|
|
cpu_addr = of_dma_get_max_cpu_address(np);
|
|
unittest(cpu_addr == 0x4fffffff,
|
|
"of_dma_get_max_cpu_address: wrong CPU addr %pad (expecting %x)\n",
|
|
&cpu_addr, 0x4fffffff);
|
|
}
|
|
|
|
static void __init of_unittest_dma_ranges_one(const char *path,
|
|
u64 expect_dma_addr, u64 expect_paddr)
|
|
{
|
|
#ifdef CONFIG_HAS_DMA
|
|
struct device_node *np;
|
|
const struct bus_dma_region *map = NULL;
|
|
int rc;
|
|
|
|
np = of_find_node_by_path(path);
|
|
if (!np) {
|
|
pr_err("missing testcase data\n");
|
|
return;
|
|
}
|
|
|
|
rc = of_dma_get_range(np, &map);
|
|
|
|
unittest(!rc, "of_dma_get_range failed on node %pOF rc=%i\n", np, rc);
|
|
|
|
if (!rc) {
|
|
phys_addr_t paddr;
|
|
dma_addr_t dma_addr;
|
|
struct device *dev_bogus;
|
|
|
|
dev_bogus = kzalloc(sizeof(struct device), GFP_KERNEL);
|
|
if (!dev_bogus) {
|
|
unittest(0, "kzalloc() failed\n");
|
|
kfree(map);
|
|
return;
|
|
}
|
|
|
|
dev_bogus->dma_range_map = map;
|
|
paddr = dma_to_phys(dev_bogus, expect_dma_addr);
|
|
dma_addr = phys_to_dma(dev_bogus, expect_paddr);
|
|
|
|
unittest(paddr == expect_paddr,
|
|
"of_dma_get_range: wrong phys addr %pap (expecting %llx) on node %pOF\n",
|
|
&paddr, expect_paddr, np);
|
|
unittest(dma_addr == expect_dma_addr,
|
|
"of_dma_get_range: wrong DMA addr %pad (expecting %llx) on node %pOF\n",
|
|
&dma_addr, expect_dma_addr, np);
|
|
|
|
kfree(map);
|
|
kfree(dev_bogus);
|
|
}
|
|
of_node_put(np);
|
|
#endif
|
|
}
|
|
|
|
static void __init of_unittest_parse_dma_ranges(void)
|
|
{
|
|
of_unittest_dma_ranges_one("/testcase-data/address-tests/device@70000000",
|
|
0x0, 0x20000000);
|
|
if (IS_ENABLED(CONFIG_ARCH_DMA_ADDR_T_64BIT))
|
|
of_unittest_dma_ranges_one("/testcase-data/address-tests/bus@80000000/device@1000",
|
|
0x100000000, 0x20000000);
|
|
of_unittest_dma_ranges_one("/testcase-data/address-tests/pci@90000000",
|
|
0x80000000, 0x20000000);
|
|
}
|
|
|
|
static void __init of_unittest_pci_dma_ranges(void)
|
|
{
|
|
struct device_node *np;
|
|
struct of_pci_range range;
|
|
struct of_pci_range_parser parser;
|
|
int i = 0;
|
|
|
|
if (!IS_ENABLED(CONFIG_PCI))
|
|
return;
|
|
|
|
np = of_find_node_by_path("/testcase-data/address-tests/pci@90000000");
|
|
if (!np) {
|
|
pr_err("missing testcase data\n");
|
|
return;
|
|
}
|
|
|
|
if (of_pci_dma_range_parser_init(&parser, np)) {
|
|
pr_err("missing dma-ranges property\n");
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Get the dma-ranges from the device tree
|
|
*/
|
|
for_each_of_pci_range(&parser, &range) {
|
|
if (!i) {
|
|
unittest(range.size == 0x10000000,
|
|
"for_each_of_pci_range wrong size on node %pOF size=%llx\n",
|
|
np, range.size);
|
|
unittest(range.cpu_addr == 0x20000000,
|
|
"for_each_of_pci_range wrong CPU addr (%llx) on node %pOF",
|
|
range.cpu_addr, np);
|
|
unittest(range.pci_addr == 0x80000000,
|
|
"for_each_of_pci_range wrong DMA addr (%llx) on node %pOF",
|
|
range.pci_addr, np);
|
|
} else {
|
|
unittest(range.size == 0x10000000,
|
|
"for_each_of_pci_range wrong size on node %pOF size=%llx\n",
|
|
np, range.size);
|
|
unittest(range.cpu_addr == 0x40000000,
|
|
"for_each_of_pci_range wrong CPU addr (%llx) on node %pOF",
|
|
range.cpu_addr, np);
|
|
unittest(range.pci_addr == 0xc0000000,
|
|
"for_each_of_pci_range wrong DMA addr (%llx) on node %pOF",
|
|
range.pci_addr, np);
|
|
}
|
|
i++;
|
|
}
|
|
|
|
of_node_put(np);
|
|
}
|
|
|
|
static void __init of_unittest_bus_ranges(void)
|
|
{
|
|
struct device_node *np;
|
|
struct of_range range;
|
|
struct of_range_parser parser;
|
|
struct resource res;
|
|
int ret, count, i = 0;
|
|
|
|
np = of_find_node_by_path("/testcase-data/address-tests");
|
|
if (!np) {
|
|
pr_err("missing testcase data\n");
|
|
return;
|
|
}
|
|
|
|
if (of_range_parser_init(&parser, np)) {
|
|
pr_err("missing ranges property\n");
|
|
return;
|
|
}
|
|
|
|
ret = of_range_to_resource(np, 1, &res);
|
|
unittest(!ret, "of_range_to_resource returned error (%d) node %pOF\n",
|
|
ret, np);
|
|
unittest(resource_type(&res) == IORESOURCE_MEM,
|
|
"of_range_to_resource wrong resource type on node %pOF res=%pR\n",
|
|
np, &res);
|
|
unittest(res.start == 0xd0000000,
|
|
"of_range_to_resource wrong resource start address on node %pOF res=%pR\n",
|
|
np, &res);
|
|
unittest(resource_size(&res) == 0x20000000,
|
|
"of_range_to_resource wrong resource start address on node %pOF res=%pR\n",
|
|
np, &res);
|
|
|
|
count = of_range_count(&parser);
|
|
unittest(count == 2,
|
|
"of_range_count wrong size on node %pOF count=%d\n",
|
|
np, count);
|
|
|
|
/*
|
|
* Get the "ranges" from the device tree
|
|
*/
|
|
for_each_of_range(&parser, &range) {
|
|
unittest(range.flags == IORESOURCE_MEM,
|
|
"for_each_of_range wrong flags on node %pOF flags=%x (expected %x)\n",
|
|
np, range.flags, IORESOURCE_MEM);
|
|
if (!i) {
|
|
unittest(range.size == 0x50000000,
|
|
"for_each_of_range wrong size on node %pOF size=%llx\n",
|
|
np, range.size);
|
|
unittest(range.cpu_addr == 0x70000000,
|
|
"for_each_of_range wrong CPU addr (%llx) on node %pOF",
|
|
range.cpu_addr, np);
|
|
unittest(range.bus_addr == 0x70000000,
|
|
"for_each_of_range wrong bus addr (%llx) on node %pOF",
|
|
range.pci_addr, np);
|
|
} else {
|
|
unittest(range.size == 0x20000000,
|
|
"for_each_of_range wrong size on node %pOF size=%llx\n",
|
|
np, range.size);
|
|
unittest(range.cpu_addr == 0xd0000000,
|
|
"for_each_of_range wrong CPU addr (%llx) on node %pOF",
|
|
range.cpu_addr, np);
|
|
unittest(range.bus_addr == 0x00000000,
|
|
"for_each_of_range wrong bus addr (%llx) on node %pOF",
|
|
range.pci_addr, np);
|
|
}
|
|
i++;
|
|
}
|
|
|
|
of_node_put(np);
|
|
}
|
|
|
|
static void __init of_unittest_bus_3cell_ranges(void)
|
|
{
|
|
struct device_node *np;
|
|
struct of_range range;
|
|
struct of_range_parser parser;
|
|
int i = 0;
|
|
|
|
np = of_find_node_by_path("/testcase-data/address-tests/bus@a0000000");
|
|
if (!np) {
|
|
pr_err("missing testcase data\n");
|
|
return;
|
|
}
|
|
|
|
if (of_range_parser_init(&parser, np)) {
|
|
pr_err("missing ranges property\n");
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Get the "ranges" from the device tree
|
|
*/
|
|
for_each_of_range(&parser, &range) {
|
|
if (!i) {
|
|
unittest(range.flags == 0xf00baa,
|
|
"for_each_of_range wrong flags on node %pOF flags=%x\n",
|
|
np, range.flags);
|
|
unittest(range.size == 0x100000,
|
|
"for_each_of_range wrong size on node %pOF size=%llx\n",
|
|
np, range.size);
|
|
unittest(range.cpu_addr == 0xa0000000,
|
|
"for_each_of_range wrong CPU addr (%llx) on node %pOF",
|
|
range.cpu_addr, np);
|
|
unittest(range.bus_addr == 0x0,
|
|
"for_each_of_range wrong bus addr (%llx) on node %pOF",
|
|
range.pci_addr, np);
|
|
} else {
|
|
unittest(range.flags == 0xf00bee,
|
|
"for_each_of_range wrong flags on node %pOF flags=%x\n",
|
|
np, range.flags);
|
|
unittest(range.size == 0x200000,
|
|
"for_each_of_range wrong size on node %pOF size=%llx\n",
|
|
np, range.size);
|
|
unittest(range.cpu_addr == 0xb0000000,
|
|
"for_each_of_range wrong CPU addr (%llx) on node %pOF",
|
|
range.cpu_addr, np);
|
|
unittest(range.bus_addr == 0x100000000,
|
|
"for_each_of_range wrong bus addr (%llx) on node %pOF",
|
|
range.pci_addr, np);
|
|
}
|
|
i++;
|
|
}
|
|
|
|
of_node_put(np);
|
|
}
|
|
|
|
static void __init of_unittest_reg(void)
|
|
{
|
|
struct device_node *np;
|
|
int ret;
|
|
u64 addr, size;
|
|
|
|
np = of_find_node_by_path("/testcase-data/address-tests/bus@80000000/device@1000");
|
|
if (!np) {
|
|
pr_err("missing testcase data\n");
|
|
return;
|
|
}
|
|
|
|
ret = of_property_read_reg(np, 0, &addr, &size);
|
|
unittest(!ret, "of_property_read_reg(%pOF) returned error %d\n",
|
|
np, ret);
|
|
unittest(addr == 0x1000, "of_property_read_reg(%pOF) untranslated address (%llx) incorrect\n",
|
|
np, addr);
|
|
|
|
of_node_put(np);
|
|
}
|
|
|
|
static void __init of_unittest_parse_interrupts(void)
|
|
{
|
|
struct device_node *np;
|
|
struct of_phandle_args args;
|
|
int i, rc;
|
|
|
|
if (of_irq_workarounds & OF_IMAP_OLDWORLD_MAC)
|
|
return;
|
|
|
|
np = of_find_node_by_path("/testcase-data/interrupts/interrupts0");
|
|
if (!np) {
|
|
pr_err("missing testcase data\n");
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
bool passed = true;
|
|
|
|
memset(&args, 0, sizeof(args));
|
|
rc = of_irq_parse_one(np, i, &args);
|
|
|
|
passed &= !rc;
|
|
passed &= (args.args_count == 1);
|
|
passed &= (args.args[0] == (i + 1));
|
|
|
|
unittest(passed, "index %i - data error on node %pOF rc=%i\n",
|
|
i, args.np, rc);
|
|
}
|
|
of_node_put(np);
|
|
|
|
np = of_find_node_by_path("/testcase-data/interrupts/interrupts1");
|
|
if (!np) {
|
|
pr_err("missing testcase data\n");
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
bool passed = true;
|
|
|
|
memset(&args, 0, sizeof(args));
|
|
rc = of_irq_parse_one(np, i, &args);
|
|
|
|
/* Test the values from tests-phandle.dtsi */
|
|
switch (i) {
|
|
case 0:
|
|
passed &= !rc;
|
|
passed &= (args.args_count == 1);
|
|
passed &= (args.args[0] == 9);
|
|
break;
|
|
case 1:
|
|
passed &= !rc;
|
|
passed &= (args.args_count == 3);
|
|
passed &= (args.args[0] == 10);
|
|
passed &= (args.args[1] == 11);
|
|
passed &= (args.args[2] == 12);
|
|
break;
|
|
case 2:
|
|
passed &= !rc;
|
|
passed &= (args.args_count == 2);
|
|
passed &= (args.args[0] == 13);
|
|
passed &= (args.args[1] == 14);
|
|
break;
|
|
case 3:
|
|
passed &= !rc;
|
|
passed &= (args.args_count == 2);
|
|
passed &= (args.args[0] == 15);
|
|
passed &= (args.args[1] == 16);
|
|
break;
|
|
default:
|
|
passed = false;
|
|
}
|
|
unittest(passed, "index %i - data error on node %pOF rc=%i\n",
|
|
i, args.np, rc);
|
|
}
|
|
of_node_put(np);
|
|
}
|
|
|
|
static void __init of_unittest_parse_interrupts_extended(void)
|
|
{
|
|
struct device_node *np;
|
|
struct of_phandle_args args;
|
|
int i, rc;
|
|
|
|
if (of_irq_workarounds & OF_IMAP_OLDWORLD_MAC)
|
|
return;
|
|
|
|
np = of_find_node_by_path("/testcase-data/interrupts/interrupts-extended0");
|
|
if (!np) {
|
|
pr_err("missing testcase data\n");
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < 7; i++) {
|
|
bool passed = true;
|
|
|
|
memset(&args, 0, sizeof(args));
|
|
rc = of_irq_parse_one(np, i, &args);
|
|
|
|
/* Test the values from tests-phandle.dtsi */
|
|
switch (i) {
|
|
case 0:
|
|
passed &= !rc;
|
|
passed &= (args.args_count == 1);
|
|
passed &= (args.args[0] == 1);
|
|
break;
|
|
case 1:
|
|
passed &= !rc;
|
|
passed &= (args.args_count == 3);
|
|
passed &= (args.args[0] == 2);
|
|
passed &= (args.args[1] == 3);
|
|
passed &= (args.args[2] == 4);
|
|
break;
|
|
case 2:
|
|
passed &= !rc;
|
|
passed &= (args.args_count == 2);
|
|
passed &= (args.args[0] == 5);
|
|
passed &= (args.args[1] == 6);
|
|
break;
|
|
case 3:
|
|
passed &= !rc;
|
|
passed &= (args.args_count == 1);
|
|
passed &= (args.args[0] == 9);
|
|
break;
|
|
case 4:
|
|
passed &= !rc;
|
|
passed &= (args.args_count == 3);
|
|
passed &= (args.args[0] == 10);
|
|
passed &= (args.args[1] == 11);
|
|
passed &= (args.args[2] == 12);
|
|
break;
|
|
case 5:
|
|
passed &= !rc;
|
|
passed &= (args.args_count == 2);
|
|
passed &= (args.args[0] == 13);
|
|
passed &= (args.args[1] == 14);
|
|
break;
|
|
case 6:
|
|
/*
|
|
* Tests child node that is missing property
|
|
* #address-cells. See the comments in
|
|
* drivers/of/unittest-data/tests-interrupts.dtsi
|
|
* nodes intmap1 and interrupts-extended0
|
|
*/
|
|
passed &= !rc;
|
|
passed &= (args.args_count == 1);
|
|
passed &= (args.args[0] == 15);
|
|
break;
|
|
default:
|
|
passed = false;
|
|
}
|
|
|
|
unittest(passed, "index %i - data error on node %pOF rc=%i\n",
|
|
i, args.np, rc);
|
|
}
|
|
of_node_put(np);
|
|
}
|
|
|
|
static const struct of_device_id match_node_table[] = {
|
|
{ .data = "A", .name = "name0", }, /* Name alone is lowest priority */
|
|
{ .data = "B", .type = "type1", }, /* followed by type alone */
|
|
|
|
{ .data = "Ca", .name = "name2", .type = "type1", }, /* followed by both together */
|
|
{ .data = "Cb", .name = "name2", }, /* Only match when type doesn't match */
|
|
{ .data = "Cc", .name = "name2", .type = "type2", },
|
|
|
|
{ .data = "E", .compatible = "compat3" },
|
|
{ .data = "G", .compatible = "compat2", },
|
|
{ .data = "H", .compatible = "compat2", .name = "name5", },
|
|
{ .data = "I", .compatible = "compat2", .type = "type1", },
|
|
{ .data = "J", .compatible = "compat2", .type = "type1", .name = "name8", },
|
|
{ .data = "K", .compatible = "compat2", .name = "name9", },
|
|
{}
|
|
};
|
|
|
|
static struct {
|
|
const char *path;
|
|
const char *data;
|
|
} match_node_tests[] = {
|
|
{ .path = "/testcase-data/match-node/name0", .data = "A", },
|
|
{ .path = "/testcase-data/match-node/name1", .data = "B", },
|
|
{ .path = "/testcase-data/match-node/a/name2", .data = "Ca", },
|
|
{ .path = "/testcase-data/match-node/b/name2", .data = "Cb", },
|
|
{ .path = "/testcase-data/match-node/c/name2", .data = "Cc", },
|
|
{ .path = "/testcase-data/match-node/name3", .data = "E", },
|
|
{ .path = "/testcase-data/match-node/name4", .data = "G", },
|
|
{ .path = "/testcase-data/match-node/name5", .data = "H", },
|
|
{ .path = "/testcase-data/match-node/name6", .data = "G", },
|
|
{ .path = "/testcase-data/match-node/name7", .data = "I", },
|
|
{ .path = "/testcase-data/match-node/name8", .data = "J", },
|
|
{ .path = "/testcase-data/match-node/name9", .data = "K", },
|
|
};
|
|
|
|
static void __init of_unittest_match_node(void)
|
|
{
|
|
struct device_node *np;
|
|
const struct of_device_id *match;
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(match_node_tests); i++) {
|
|
np = of_find_node_by_path(match_node_tests[i].path);
|
|
if (!np) {
|
|
unittest(0, "missing testcase node %s\n",
|
|
match_node_tests[i].path);
|
|
continue;
|
|
}
|
|
|
|
match = of_match_node(match_node_table, np);
|
|
if (!match) {
|
|
unittest(0, "%s didn't match anything\n",
|
|
match_node_tests[i].path);
|
|
continue;
|
|
}
|
|
|
|
if (strcmp(match->data, match_node_tests[i].data) != 0) {
|
|
unittest(0, "%s got wrong match. expected %s, got %s\n",
|
|
match_node_tests[i].path, match_node_tests[i].data,
|
|
(const char *)match->data);
|
|
continue;
|
|
}
|
|
unittest(1, "passed");
|
|
}
|
|
}
|
|
|
|
static struct resource test_bus_res = DEFINE_RES_MEM(0xfffffff8, 2);
|
|
static const struct platform_device_info test_bus_info = {
|
|
.name = "unittest-bus",
|
|
};
|
|
static void __init of_unittest_platform_populate(void)
|
|
{
|
|
int irq, rc;
|
|
struct device_node *np, *child, *grandchild;
|
|
struct platform_device *pdev, *test_bus;
|
|
const struct of_device_id match[] = {
|
|
{ .compatible = "test-device", },
|
|
{}
|
|
};
|
|
|
|
np = of_find_node_by_path("/testcase-data");
|
|
of_platform_default_populate(np, NULL, NULL);
|
|
|
|
/* Test that a missing irq domain returns -EPROBE_DEFER */
|
|
np = of_find_node_by_path("/testcase-data/testcase-device1");
|
|
pdev = of_find_device_by_node(np);
|
|
unittest(pdev, "device 1 creation failed\n");
|
|
|
|
if (!(of_irq_workarounds & OF_IMAP_OLDWORLD_MAC)) {
|
|
irq = platform_get_irq(pdev, 0);
|
|
unittest(irq == -EPROBE_DEFER,
|
|
"device deferred probe failed - %d\n", irq);
|
|
|
|
/* Test that a parsing failure does not return -EPROBE_DEFER */
|
|
np = of_find_node_by_path("/testcase-data/testcase-device2");
|
|
pdev = of_find_device_by_node(np);
|
|
unittest(pdev, "device 2 creation failed\n");
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"platform testcase-data:testcase-device2: error -ENXIO: IRQ index 0 not found");
|
|
|
|
irq = platform_get_irq(pdev, 0);
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"platform testcase-data:testcase-device2: error -ENXIO: IRQ index 0 not found");
|
|
|
|
unittest(irq < 0 && irq != -EPROBE_DEFER,
|
|
"device parsing error failed - %d\n", irq);
|
|
}
|
|
|
|
np = of_find_node_by_path("/testcase-data/platform-tests");
|
|
unittest(np, "No testcase data in device tree\n");
|
|
if (!np)
|
|
return;
|
|
|
|
test_bus = platform_device_register_full(&test_bus_info);
|
|
rc = PTR_ERR_OR_ZERO(test_bus);
|
|
unittest(!rc, "testbus registration failed; rc=%i\n", rc);
|
|
if (rc) {
|
|
of_node_put(np);
|
|
return;
|
|
}
|
|
test_bus->dev.of_node = np;
|
|
|
|
/*
|
|
* Add a dummy resource to the test bus node after it is
|
|
* registered to catch problems with un-inserted resources. The
|
|
* DT code doesn't insert the resources, and it has caused the
|
|
* kernel to oops in the past. This makes sure the same bug
|
|
* doesn't crop up again.
|
|
*/
|
|
platform_device_add_resources(test_bus, &test_bus_res, 1);
|
|
|
|
of_platform_populate(np, match, NULL, &test_bus->dev);
|
|
for_each_child_of_node(np, child) {
|
|
for_each_child_of_node(child, grandchild) {
|
|
pdev = of_find_device_by_node(grandchild);
|
|
unittest(pdev,
|
|
"Could not create device for node '%pOFn'\n",
|
|
grandchild);
|
|
platform_device_put(pdev);
|
|
}
|
|
}
|
|
|
|
of_platform_depopulate(&test_bus->dev);
|
|
for_each_child_of_node(np, child) {
|
|
for_each_child_of_node(child, grandchild)
|
|
unittest(!of_find_device_by_node(grandchild),
|
|
"device didn't get destroyed '%pOFn'\n",
|
|
grandchild);
|
|
}
|
|
|
|
platform_device_unregister(test_bus);
|
|
of_node_put(np);
|
|
}
|
|
|
|
/**
|
|
* update_node_properties - adds the properties
|
|
* of np into dup node (present in live tree) and
|
|
* updates parent of children of np to dup.
|
|
*
|
|
* @np: node whose properties are being added to the live tree
|
|
* @dup: node present in live tree to be updated
|
|
*/
|
|
static void update_node_properties(struct device_node *np,
|
|
struct device_node *dup)
|
|
{
|
|
struct property *prop;
|
|
struct property *save_next;
|
|
struct device_node *child;
|
|
int ret;
|
|
|
|
for_each_child_of_node(np, child)
|
|
child->parent = dup;
|
|
|
|
/*
|
|
* "unittest internal error: unable to add testdata property"
|
|
*
|
|
* If this message reports a property in node '/__symbols__' then
|
|
* the respective unittest overlay contains a label that has the
|
|
* same name as a label in the live devicetree. The label will
|
|
* be in the live devicetree only if the devicetree source was
|
|
* compiled with the '-@' option. If you encounter this error,
|
|
* please consider renaming __all__ of the labels in the unittest
|
|
* overlay dts files with an odd prefix that is unlikely to be
|
|
* used in a real devicetree.
|
|
*/
|
|
|
|
/*
|
|
* open code for_each_property_of_node() because of_add_property()
|
|
* sets prop->next to NULL
|
|
*/
|
|
for (prop = np->properties; prop != NULL; prop = save_next) {
|
|
save_next = prop->next;
|
|
ret = of_add_property(dup, prop);
|
|
if (ret) {
|
|
if (ret == -EEXIST && !strcmp(prop->name, "name"))
|
|
continue;
|
|
pr_err("unittest internal error: unable to add testdata property %pOF/%s",
|
|
np, prop->name);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* attach_node_and_children - attaches nodes
|
|
* and its children to live tree.
|
|
* CAUTION: misleading function name - if node @np already exists in
|
|
* the live tree then children of @np are *not* attached to the live
|
|
* tree. This works for the current test devicetree nodes because such
|
|
* nodes do not have child nodes.
|
|
*
|
|
* @np: Node to attach to live tree
|
|
*/
|
|
static void attach_node_and_children(struct device_node *np)
|
|
{
|
|
struct device_node *next, *dup, *child;
|
|
unsigned long flags;
|
|
const char *full_name;
|
|
|
|
full_name = kasprintf(GFP_KERNEL, "%pOF", np);
|
|
if (!full_name)
|
|
return;
|
|
|
|
if (!strcmp(full_name, "/__local_fixups__") ||
|
|
!strcmp(full_name, "/__fixups__")) {
|
|
kfree(full_name);
|
|
return;
|
|
}
|
|
|
|
dup = of_find_node_by_path(full_name);
|
|
kfree(full_name);
|
|
if (dup) {
|
|
update_node_properties(np, dup);
|
|
return;
|
|
}
|
|
|
|
child = np->child;
|
|
np->child = NULL;
|
|
|
|
mutex_lock(&of_mutex);
|
|
raw_spin_lock_irqsave(&devtree_lock, flags);
|
|
np->sibling = np->parent->child;
|
|
np->parent->child = np;
|
|
of_node_clear_flag(np, OF_DETACHED);
|
|
raw_spin_unlock_irqrestore(&devtree_lock, flags);
|
|
|
|
__of_attach_node_sysfs(np);
|
|
mutex_unlock(&of_mutex);
|
|
|
|
while (child) {
|
|
next = child->sibling;
|
|
attach_node_and_children(child);
|
|
child = next;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* unittest_data_add - Reads, copies data from
|
|
* linked tree and attaches it to the live tree
|
|
*/
|
|
static int __init unittest_data_add(void)
|
|
{
|
|
void *unittest_data;
|
|
void *unittest_data_align;
|
|
struct device_node *unittest_data_node = NULL, *np;
|
|
/*
|
|
* __dtbo_testcases_begin[] and __dtbo_testcases_end[] are magically
|
|
* created by cmd_dt_S_dtbo in scripts/Makefile.lib
|
|
*/
|
|
extern uint8_t __dtbo_testcases_begin[];
|
|
extern uint8_t __dtbo_testcases_end[];
|
|
const int size = __dtbo_testcases_end - __dtbo_testcases_begin;
|
|
int rc;
|
|
void *ret;
|
|
|
|
if (!size) {
|
|
pr_warn("%s: testcases is empty\n", __func__);
|
|
return -ENODATA;
|
|
}
|
|
|
|
/* creating copy */
|
|
unittest_data = kmalloc(size + FDT_ALIGN_SIZE, GFP_KERNEL);
|
|
if (!unittest_data)
|
|
return -ENOMEM;
|
|
|
|
unittest_data_align = PTR_ALIGN(unittest_data, FDT_ALIGN_SIZE);
|
|
memcpy(unittest_data_align, __dtbo_testcases_begin, size);
|
|
|
|
ret = of_fdt_unflatten_tree(unittest_data_align, NULL, &unittest_data_node);
|
|
if (!ret) {
|
|
pr_warn("%s: unflatten testcases tree failed\n", __func__);
|
|
kfree(unittest_data);
|
|
return -ENODATA;
|
|
}
|
|
if (!unittest_data_node) {
|
|
pr_warn("%s: testcases tree is empty\n", __func__);
|
|
kfree(unittest_data);
|
|
return -ENODATA;
|
|
}
|
|
|
|
/*
|
|
* This lock normally encloses of_resolve_phandles()
|
|
*/
|
|
of_overlay_mutex_lock();
|
|
|
|
rc = of_resolve_phandles(unittest_data_node);
|
|
if (rc) {
|
|
pr_err("%s: Failed to resolve phandles (rc=%i)\n", __func__, rc);
|
|
of_overlay_mutex_unlock();
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!of_root) {
|
|
of_root = unittest_data_node;
|
|
for_each_of_allnodes(np)
|
|
__of_attach_node_sysfs(np);
|
|
of_aliases = of_find_node_by_path("/aliases");
|
|
of_chosen = of_find_node_by_path("/chosen");
|
|
of_overlay_mutex_unlock();
|
|
return 0;
|
|
}
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"Duplicate name in testcase-data, renamed to \"duplicate-name#1\"");
|
|
|
|
/* attach the sub-tree to live tree */
|
|
np = unittest_data_node->child;
|
|
while (np) {
|
|
struct device_node *next = np->sibling;
|
|
|
|
np->parent = of_root;
|
|
/* this will clear OF_DETACHED in np and children */
|
|
attach_node_and_children(np);
|
|
np = next;
|
|
}
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"Duplicate name in testcase-data, renamed to \"duplicate-name#1\"");
|
|
|
|
of_overlay_mutex_unlock();
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_OF_OVERLAY
|
|
static int __init overlay_data_apply(const char *overlay_name, int *ovcs_id);
|
|
|
|
static int unittest_probe(struct platform_device *pdev)
|
|
{
|
|
struct device *dev = &pdev->dev;
|
|
struct device_node *np = dev->of_node;
|
|
|
|
if (np == NULL) {
|
|
dev_err(dev, "No OF data for device\n");
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
dev_dbg(dev, "%s for node @%pOF\n", __func__, np);
|
|
|
|
of_platform_populate(np, NULL, NULL, &pdev->dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void unittest_remove(struct platform_device *pdev)
|
|
{
|
|
struct device *dev = &pdev->dev;
|
|
struct device_node *np = dev->of_node;
|
|
|
|
dev_dbg(dev, "%s for node @%pOF\n", __func__, np);
|
|
}
|
|
|
|
static const struct of_device_id unittest_match[] = {
|
|
{ .compatible = "unittest", },
|
|
{},
|
|
};
|
|
|
|
static struct platform_driver unittest_driver = {
|
|
.probe = unittest_probe,
|
|
.remove_new = unittest_remove,
|
|
.driver = {
|
|
.name = "unittest",
|
|
.of_match_table = unittest_match,
|
|
},
|
|
};
|
|
|
|
/* get the platform device instantiated at the path */
|
|
static struct platform_device *of_path_to_platform_device(const char *path)
|
|
{
|
|
struct device_node *np;
|
|
struct platform_device *pdev;
|
|
|
|
np = of_find_node_by_path(path);
|
|
if (np == NULL)
|
|
return NULL;
|
|
|
|
pdev = of_find_device_by_node(np);
|
|
of_node_put(np);
|
|
|
|
return pdev;
|
|
}
|
|
|
|
/* find out if a platform device exists at that path */
|
|
static int of_path_platform_device_exists(const char *path)
|
|
{
|
|
struct platform_device *pdev;
|
|
|
|
pdev = of_path_to_platform_device(path);
|
|
platform_device_put(pdev);
|
|
return pdev != NULL;
|
|
}
|
|
|
|
#ifdef CONFIG_OF_GPIO
|
|
|
|
struct unittest_gpio_dev {
|
|
struct gpio_chip chip;
|
|
};
|
|
|
|
static int unittest_gpio_chip_request_count;
|
|
static int unittest_gpio_probe_count;
|
|
static int unittest_gpio_probe_pass_count;
|
|
|
|
static int unittest_gpio_chip_request(struct gpio_chip *chip, unsigned int offset)
|
|
{
|
|
unittest_gpio_chip_request_count++;
|
|
|
|
pr_debug("%s(): %s %d %d\n", __func__, chip->label, offset,
|
|
unittest_gpio_chip_request_count);
|
|
return 0;
|
|
}
|
|
|
|
static int unittest_gpio_probe(struct platform_device *pdev)
|
|
{
|
|
struct unittest_gpio_dev *devptr;
|
|
int ret;
|
|
|
|
unittest_gpio_probe_count++;
|
|
|
|
devptr = kzalloc(sizeof(*devptr), GFP_KERNEL);
|
|
if (!devptr)
|
|
return -ENOMEM;
|
|
|
|
platform_set_drvdata(pdev, devptr);
|
|
|
|
devptr->chip.fwnode = dev_fwnode(&pdev->dev);
|
|
devptr->chip.label = "of-unittest-gpio";
|
|
devptr->chip.base = -1; /* dynamic allocation */
|
|
devptr->chip.ngpio = 5;
|
|
devptr->chip.request = unittest_gpio_chip_request;
|
|
|
|
ret = gpiochip_add_data(&devptr->chip, NULL);
|
|
|
|
unittest(!ret,
|
|
"gpiochip_add_data() for node @%pfw failed, ret = %d\n", devptr->chip.fwnode, ret);
|
|
|
|
if (!ret)
|
|
unittest_gpio_probe_pass_count++;
|
|
return ret;
|
|
}
|
|
|
|
static void unittest_gpio_remove(struct platform_device *pdev)
|
|
{
|
|
struct unittest_gpio_dev *devptr = platform_get_drvdata(pdev);
|
|
struct device *dev = &pdev->dev;
|
|
|
|
dev_dbg(dev, "%s for node @%pfw\n", __func__, devptr->chip.fwnode);
|
|
|
|
if (devptr->chip.base != -1)
|
|
gpiochip_remove(&devptr->chip);
|
|
|
|
kfree(devptr);
|
|
}
|
|
|
|
static const struct of_device_id unittest_gpio_id[] = {
|
|
{ .compatible = "unittest-gpio", },
|
|
{}
|
|
};
|
|
|
|
static struct platform_driver unittest_gpio_driver = {
|
|
.probe = unittest_gpio_probe,
|
|
.remove_new = unittest_gpio_remove,
|
|
.driver = {
|
|
.name = "unittest-gpio",
|
|
.of_match_table = unittest_gpio_id,
|
|
},
|
|
};
|
|
|
|
static void __init of_unittest_overlay_gpio(void)
|
|
{
|
|
int chip_request_count;
|
|
int probe_pass_count;
|
|
int ret;
|
|
|
|
/*
|
|
* tests: apply overlays before registering driver
|
|
* Similar to installing a driver as a module, the
|
|
* driver is registered after applying the overlays.
|
|
*
|
|
* The overlays are applied by overlay_data_apply()
|
|
* instead of of_unittest_apply_overlay() so that they
|
|
* will not be tracked. Thus they will not be removed
|
|
* by of_unittest_remove_tracked_overlays().
|
|
*
|
|
* - apply overlay_gpio_01
|
|
* - apply overlay_gpio_02a
|
|
* - apply overlay_gpio_02b
|
|
* - register driver
|
|
*
|
|
* register driver will result in
|
|
* - probe and processing gpio hog for overlay_gpio_01
|
|
* - probe for overlay_gpio_02a
|
|
* - processing gpio for overlay_gpio_02b
|
|
*/
|
|
|
|
probe_pass_count = unittest_gpio_probe_pass_count;
|
|
chip_request_count = unittest_gpio_chip_request_count;
|
|
|
|
/*
|
|
* overlay_gpio_01 contains gpio node and child gpio hog node
|
|
* overlay_gpio_02a contains gpio node
|
|
* overlay_gpio_02b contains child gpio hog node
|
|
*/
|
|
|
|
unittest(overlay_data_apply("overlay_gpio_01", NULL),
|
|
"Adding overlay 'overlay_gpio_01' failed\n");
|
|
|
|
unittest(overlay_data_apply("overlay_gpio_02a", NULL),
|
|
"Adding overlay 'overlay_gpio_02a' failed\n");
|
|
|
|
unittest(overlay_data_apply("overlay_gpio_02b", NULL),
|
|
"Adding overlay 'overlay_gpio_02b' failed\n");
|
|
|
|
ret = platform_driver_register(&unittest_gpio_driver);
|
|
if (unittest(ret == 0, "could not register unittest gpio driver\n"))
|
|
return;
|
|
|
|
unittest(probe_pass_count + 2 == unittest_gpio_probe_pass_count,
|
|
"unittest_gpio_probe() failed or not called\n");
|
|
|
|
unittest(chip_request_count + 2 == unittest_gpio_chip_request_count,
|
|
"unittest_gpio_chip_request() called %d times (expected 1 time)\n",
|
|
unittest_gpio_chip_request_count - chip_request_count);
|
|
|
|
/*
|
|
* tests: apply overlays after registering driver
|
|
*
|
|
* Similar to a driver built-in to the kernel, the
|
|
* driver is registered before applying the overlays.
|
|
*
|
|
* overlay_gpio_03 contains gpio node and child gpio hog node
|
|
*
|
|
* - apply overlay_gpio_03
|
|
*
|
|
* apply overlay will result in
|
|
* - probe and processing gpio hog.
|
|
*/
|
|
|
|
probe_pass_count = unittest_gpio_probe_pass_count;
|
|
chip_request_count = unittest_gpio_chip_request_count;
|
|
|
|
/* overlay_gpio_03 contains gpio node and child gpio hog node */
|
|
|
|
unittest(overlay_data_apply("overlay_gpio_03", NULL),
|
|
"Adding overlay 'overlay_gpio_03' failed\n");
|
|
|
|
unittest(probe_pass_count + 1 == unittest_gpio_probe_pass_count,
|
|
"unittest_gpio_probe() failed or not called\n");
|
|
|
|
unittest(chip_request_count + 1 == unittest_gpio_chip_request_count,
|
|
"unittest_gpio_chip_request() called %d times (expected 1 time)\n",
|
|
unittest_gpio_chip_request_count - chip_request_count);
|
|
|
|
/*
|
|
* overlay_gpio_04a contains gpio node
|
|
*
|
|
* - apply overlay_gpio_04a
|
|
*
|
|
* apply the overlay will result in
|
|
* - probe for overlay_gpio_04a
|
|
*/
|
|
|
|
probe_pass_count = unittest_gpio_probe_pass_count;
|
|
chip_request_count = unittest_gpio_chip_request_count;
|
|
|
|
/* overlay_gpio_04a contains gpio node */
|
|
|
|
unittest(overlay_data_apply("overlay_gpio_04a", NULL),
|
|
"Adding overlay 'overlay_gpio_04a' failed\n");
|
|
|
|
unittest(probe_pass_count + 1 == unittest_gpio_probe_pass_count,
|
|
"unittest_gpio_probe() failed or not called\n");
|
|
|
|
/*
|
|
* overlay_gpio_04b contains child gpio hog node
|
|
*
|
|
* - apply overlay_gpio_04b
|
|
*
|
|
* apply the overlay will result in
|
|
* - processing gpio for overlay_gpio_04b
|
|
*/
|
|
|
|
/* overlay_gpio_04b contains child gpio hog node */
|
|
|
|
unittest(overlay_data_apply("overlay_gpio_04b", NULL),
|
|
"Adding overlay 'overlay_gpio_04b' failed\n");
|
|
|
|
unittest(chip_request_count + 1 == unittest_gpio_chip_request_count,
|
|
"unittest_gpio_chip_request() called %d times (expected 1 time)\n",
|
|
unittest_gpio_chip_request_count - chip_request_count);
|
|
}
|
|
|
|
#else
|
|
|
|
static void __init of_unittest_overlay_gpio(void)
|
|
{
|
|
/* skip tests */
|
|
}
|
|
|
|
#endif
|
|
|
|
#if IS_BUILTIN(CONFIG_I2C)
|
|
|
|
/* get the i2c client device instantiated at the path */
|
|
static struct i2c_client *of_path_to_i2c_client(const char *path)
|
|
{
|
|
struct device_node *np;
|
|
struct i2c_client *client;
|
|
|
|
np = of_find_node_by_path(path);
|
|
if (np == NULL)
|
|
return NULL;
|
|
|
|
client = of_find_i2c_device_by_node(np);
|
|
of_node_put(np);
|
|
|
|
return client;
|
|
}
|
|
|
|
/* find out if a i2c client device exists at that path */
|
|
static int of_path_i2c_client_exists(const char *path)
|
|
{
|
|
struct i2c_client *client;
|
|
|
|
client = of_path_to_i2c_client(path);
|
|
if (client)
|
|
put_device(&client->dev);
|
|
return client != NULL;
|
|
}
|
|
#else
|
|
static int of_path_i2c_client_exists(const char *path)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
enum overlay_type {
|
|
PDEV_OVERLAY,
|
|
I2C_OVERLAY
|
|
};
|
|
|
|
static int of_path_device_type_exists(const char *path,
|
|
enum overlay_type ovtype)
|
|
{
|
|
switch (ovtype) {
|
|
case PDEV_OVERLAY:
|
|
return of_path_platform_device_exists(path);
|
|
case I2C_OVERLAY:
|
|
return of_path_i2c_client_exists(path);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static const char *unittest_path(int nr, enum overlay_type ovtype)
|
|
{
|
|
const char *base;
|
|
static char buf[256];
|
|
|
|
switch (ovtype) {
|
|
case PDEV_OVERLAY:
|
|
base = "/testcase-data/overlay-node/test-bus";
|
|
break;
|
|
case I2C_OVERLAY:
|
|
base = "/testcase-data/overlay-node/test-bus/i2c-test-bus";
|
|
break;
|
|
default:
|
|
buf[0] = '\0';
|
|
return buf;
|
|
}
|
|
snprintf(buf, sizeof(buf) - 1, "%s/test-unittest%d", base, nr);
|
|
buf[sizeof(buf) - 1] = '\0';
|
|
return buf;
|
|
}
|
|
|
|
static int of_unittest_device_exists(int unittest_nr, enum overlay_type ovtype)
|
|
{
|
|
const char *path;
|
|
|
|
path = unittest_path(unittest_nr, ovtype);
|
|
|
|
switch (ovtype) {
|
|
case PDEV_OVERLAY:
|
|
return of_path_platform_device_exists(path);
|
|
case I2C_OVERLAY:
|
|
return of_path_i2c_client_exists(path);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static const char *overlay_name_from_nr(int nr)
|
|
{
|
|
static char buf[256];
|
|
|
|
snprintf(buf, sizeof(buf) - 1,
|
|
"overlay_%d", nr);
|
|
buf[sizeof(buf) - 1] = '\0';
|
|
|
|
return buf;
|
|
}
|
|
|
|
static const char *bus_path = "/testcase-data/overlay-node/test-bus";
|
|
|
|
#define MAX_TRACK_OVCS_IDS 256
|
|
|
|
static int track_ovcs_id[MAX_TRACK_OVCS_IDS];
|
|
static int track_ovcs_id_overlay_nr[MAX_TRACK_OVCS_IDS];
|
|
static int track_ovcs_id_cnt;
|
|
|
|
static void of_unittest_track_overlay(int ovcs_id, int overlay_nr)
|
|
{
|
|
if (WARN_ON(track_ovcs_id_cnt >= MAX_TRACK_OVCS_IDS))
|
|
return;
|
|
|
|
track_ovcs_id[track_ovcs_id_cnt] = ovcs_id;
|
|
track_ovcs_id_overlay_nr[track_ovcs_id_cnt] = overlay_nr;
|
|
track_ovcs_id_cnt++;
|
|
}
|
|
|
|
static void of_unittest_untrack_overlay(int ovcs_id)
|
|
{
|
|
if (WARN_ON(track_ovcs_id_cnt < 1))
|
|
return;
|
|
|
|
track_ovcs_id_cnt--;
|
|
|
|
/* If out of synch then test is broken. Do not try to recover. */
|
|
WARN_ON(track_ovcs_id[track_ovcs_id_cnt] != ovcs_id);
|
|
}
|
|
|
|
static void of_unittest_remove_tracked_overlays(void)
|
|
{
|
|
int ret, ovcs_id, overlay_nr, save_ovcs_id;
|
|
const char *overlay_name;
|
|
|
|
while (track_ovcs_id_cnt > 0) {
|
|
|
|
ovcs_id = track_ovcs_id[track_ovcs_id_cnt - 1];
|
|
overlay_nr = track_ovcs_id_overlay_nr[track_ovcs_id_cnt - 1];
|
|
save_ovcs_id = ovcs_id;
|
|
ret = of_overlay_remove(&ovcs_id);
|
|
if (ret == -ENODEV) {
|
|
overlay_name = overlay_name_from_nr(overlay_nr);
|
|
pr_warn("%s: of_overlay_remove() for overlay \"%s\" failed, ret = %d\n",
|
|
__func__, overlay_name, ret);
|
|
}
|
|
of_unittest_untrack_overlay(save_ovcs_id);
|
|
}
|
|
|
|
}
|
|
|
|
static int __init of_unittest_apply_overlay(int overlay_nr, int *ovcs_id)
|
|
{
|
|
/*
|
|
* The overlay will be tracked, thus it will be removed
|
|
* by of_unittest_remove_tracked_overlays().
|
|
*/
|
|
|
|
const char *overlay_name;
|
|
|
|
overlay_name = overlay_name_from_nr(overlay_nr);
|
|
|
|
if (!overlay_data_apply(overlay_name, ovcs_id)) {
|
|
unittest(0, "could not apply overlay \"%s\"\n", overlay_name);
|
|
return -EFAULT;
|
|
}
|
|
of_unittest_track_overlay(*ovcs_id, overlay_nr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __init __of_unittest_apply_overlay_check(int overlay_nr,
|
|
int unittest_nr, int before, int after,
|
|
enum overlay_type ovtype)
|
|
{
|
|
int ret, ovcs_id;
|
|
|
|
/* unittest device must be in before state */
|
|
if (of_unittest_device_exists(unittest_nr, ovtype) != before) {
|
|
unittest(0, "%s with device @\"%s\" %s\n",
|
|
overlay_name_from_nr(overlay_nr),
|
|
unittest_path(unittest_nr, ovtype),
|
|
!before ? "enabled" : "disabled");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* apply the overlay */
|
|
ovcs_id = 0;
|
|
ret = of_unittest_apply_overlay(overlay_nr, &ovcs_id);
|
|
if (ret != 0) {
|
|
/* of_unittest_apply_overlay already called unittest() */
|
|
return ret;
|
|
}
|
|
|
|
/* unittest device must be in after state */
|
|
if (of_unittest_device_exists(unittest_nr, ovtype) != after) {
|
|
unittest(0, "%s with device @\"%s\" %s\n",
|
|
overlay_name_from_nr(overlay_nr),
|
|
unittest_path(unittest_nr, ovtype),
|
|
!after ? "enabled" : "disabled");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return ovcs_id;
|
|
}
|
|
|
|
/* apply an overlay while checking before and after states */
|
|
static int __init of_unittest_apply_overlay_check(int overlay_nr,
|
|
int unittest_nr, int before, int after,
|
|
enum overlay_type ovtype)
|
|
{
|
|
int ovcs_id = __of_unittest_apply_overlay_check(overlay_nr,
|
|
unittest_nr, before, after, ovtype);
|
|
if (ovcs_id < 0)
|
|
return ovcs_id;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* apply an overlay and then revert it while checking before, after states */
|
|
static int __init of_unittest_apply_revert_overlay_check(int overlay_nr,
|
|
int unittest_nr, int before, int after,
|
|
enum overlay_type ovtype)
|
|
{
|
|
int ret, ovcs_id, save_ovcs_id;
|
|
|
|
ovcs_id = __of_unittest_apply_overlay_check(overlay_nr, unittest_nr,
|
|
before, after, ovtype);
|
|
if (ovcs_id < 0)
|
|
return ovcs_id;
|
|
|
|
/* remove the overlay */
|
|
save_ovcs_id = ovcs_id;
|
|
ret = of_overlay_remove(&ovcs_id);
|
|
if (ret != 0) {
|
|
unittest(0, "%s failed to be destroyed @\"%s\"\n",
|
|
overlay_name_from_nr(overlay_nr),
|
|
unittest_path(unittest_nr, ovtype));
|
|
return ret;
|
|
}
|
|
of_unittest_untrack_overlay(save_ovcs_id);
|
|
|
|
/* unittest device must be again in before state */
|
|
if (of_unittest_device_exists(unittest_nr, ovtype) != before) {
|
|
unittest(0, "%s with device @\"%s\" %s\n",
|
|
overlay_name_from_nr(overlay_nr),
|
|
unittest_path(unittest_nr, ovtype),
|
|
!before ? "enabled" : "disabled");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* test activation of device */
|
|
static void __init of_unittest_overlay_0(void)
|
|
{
|
|
int ret;
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest0/status");
|
|
|
|
/* device should enable */
|
|
ret = of_unittest_apply_overlay_check(0, 0, 0, 1, PDEV_OVERLAY);
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest0/status");
|
|
|
|
if (ret)
|
|
return;
|
|
|
|
unittest(1, "overlay test %d passed\n", 0);
|
|
}
|
|
|
|
/* test deactivation of device */
|
|
static void __init of_unittest_overlay_1(void)
|
|
{
|
|
int ret;
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest1/status");
|
|
|
|
/* device should disable */
|
|
ret = of_unittest_apply_overlay_check(1, 1, 1, 0, PDEV_OVERLAY);
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest1/status");
|
|
|
|
if (ret)
|
|
return;
|
|
|
|
unittest(1, "overlay test %d passed\n", 1);
|
|
|
|
}
|
|
|
|
/* test activation of device */
|
|
static void __init of_unittest_overlay_2(void)
|
|
{
|
|
int ret;
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest2/status");
|
|
|
|
/* device should enable */
|
|
ret = of_unittest_apply_overlay_check(2, 2, 0, 1, PDEV_OVERLAY);
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest2/status");
|
|
|
|
if (ret)
|
|
return;
|
|
unittest(1, "overlay test %d passed\n", 2);
|
|
}
|
|
|
|
/* test deactivation of device */
|
|
static void __init of_unittest_overlay_3(void)
|
|
{
|
|
int ret;
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest3/status");
|
|
|
|
/* device should disable */
|
|
ret = of_unittest_apply_overlay_check(3, 3, 1, 0, PDEV_OVERLAY);
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest3/status");
|
|
|
|
if (ret)
|
|
return;
|
|
|
|
unittest(1, "overlay test %d passed\n", 3);
|
|
}
|
|
|
|
/* test activation of a full device node */
|
|
static void __init of_unittest_overlay_4(void)
|
|
{
|
|
/* device should disable */
|
|
if (of_unittest_apply_overlay_check(4, 4, 0, 1, PDEV_OVERLAY))
|
|
return;
|
|
|
|
unittest(1, "overlay test %d passed\n", 4);
|
|
}
|
|
|
|
/* test overlay apply/revert sequence */
|
|
static void __init of_unittest_overlay_5(void)
|
|
{
|
|
int ret;
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest5/status");
|
|
|
|
/* device should disable */
|
|
ret = of_unittest_apply_revert_overlay_check(5, 5, 0, 1, PDEV_OVERLAY);
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest5/status");
|
|
|
|
if (ret)
|
|
return;
|
|
|
|
unittest(1, "overlay test %d passed\n", 5);
|
|
}
|
|
|
|
/* test overlay application in sequence */
|
|
static void __init of_unittest_overlay_6(void)
|
|
{
|
|
int i, save_ovcs_id[2], ovcs_id;
|
|
int overlay_nr = 6, unittest_nr = 6;
|
|
int before = 0, after = 1;
|
|
const char *overlay_name;
|
|
|
|
int ret;
|
|
|
|
/* unittest device must be in before state */
|
|
for (i = 0; i < 2; i++) {
|
|
if (of_unittest_device_exists(unittest_nr + i, PDEV_OVERLAY)
|
|
!= before) {
|
|
unittest(0, "%s with device @\"%s\" %s\n",
|
|
overlay_name_from_nr(overlay_nr + i),
|
|
unittest_path(unittest_nr + i,
|
|
PDEV_OVERLAY),
|
|
!before ? "enabled" : "disabled");
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* apply the overlays */
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest6/status");
|
|
|
|
overlay_name = overlay_name_from_nr(overlay_nr + 0);
|
|
|
|
ret = overlay_data_apply(overlay_name, &ovcs_id);
|
|
|
|
if (!ret) {
|
|
unittest(0, "could not apply overlay \"%s\"\n", overlay_name);
|
|
return;
|
|
}
|
|
save_ovcs_id[0] = ovcs_id;
|
|
of_unittest_track_overlay(ovcs_id, overlay_nr + 0);
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest6/status");
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest7/status");
|
|
|
|
overlay_name = overlay_name_from_nr(overlay_nr + 1);
|
|
|
|
ret = overlay_data_apply(overlay_name, &ovcs_id);
|
|
|
|
if (!ret) {
|
|
unittest(0, "could not apply overlay \"%s\"\n", overlay_name);
|
|
return;
|
|
}
|
|
save_ovcs_id[1] = ovcs_id;
|
|
of_unittest_track_overlay(ovcs_id, overlay_nr + 1);
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest7/status");
|
|
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
/* unittest device must be in after state */
|
|
if (of_unittest_device_exists(unittest_nr + i, PDEV_OVERLAY)
|
|
!= after) {
|
|
unittest(0, "overlay @\"%s\" failed @\"%s\" %s\n",
|
|
overlay_name_from_nr(overlay_nr + i),
|
|
unittest_path(unittest_nr + i,
|
|
PDEV_OVERLAY),
|
|
!after ? "enabled" : "disabled");
|
|
return;
|
|
}
|
|
}
|
|
|
|
for (i = 1; i >= 0; i--) {
|
|
ovcs_id = save_ovcs_id[i];
|
|
if (of_overlay_remove(&ovcs_id)) {
|
|
unittest(0, "%s failed destroy @\"%s\"\n",
|
|
overlay_name_from_nr(overlay_nr + i),
|
|
unittest_path(unittest_nr + i,
|
|
PDEV_OVERLAY));
|
|
return;
|
|
}
|
|
of_unittest_untrack_overlay(save_ovcs_id[i]);
|
|
}
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
/* unittest device must be again in before state */
|
|
if (of_unittest_device_exists(unittest_nr + i, PDEV_OVERLAY)
|
|
!= before) {
|
|
unittest(0, "%s with device @\"%s\" %s\n",
|
|
overlay_name_from_nr(overlay_nr + i),
|
|
unittest_path(unittest_nr + i,
|
|
PDEV_OVERLAY),
|
|
!before ? "enabled" : "disabled");
|
|
return;
|
|
}
|
|
}
|
|
|
|
unittest(1, "overlay test %d passed\n", 6);
|
|
|
|
}
|
|
|
|
/* test overlay application in sequence */
|
|
static void __init of_unittest_overlay_8(void)
|
|
{
|
|
int i, save_ovcs_id[2], ovcs_id;
|
|
int overlay_nr = 8, unittest_nr = 8;
|
|
const char *overlay_name;
|
|
int ret;
|
|
|
|
/* we don't care about device state in this test */
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/status");
|
|
|
|
overlay_name = overlay_name_from_nr(overlay_nr + 0);
|
|
|
|
ret = overlay_data_apply(overlay_name, &ovcs_id);
|
|
if (!ret)
|
|
unittest(0, "could not apply overlay \"%s\"\n", overlay_name);
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/status");
|
|
|
|
if (!ret)
|
|
return;
|
|
|
|
save_ovcs_id[0] = ovcs_id;
|
|
of_unittest_track_overlay(ovcs_id, overlay_nr + 0);
|
|
|
|
overlay_name = overlay_name_from_nr(overlay_nr + 1);
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/property-foo");
|
|
|
|
/* apply the overlays */
|
|
ret = overlay_data_apply(overlay_name, &ovcs_id);
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/property-foo");
|
|
|
|
if (!ret) {
|
|
unittest(0, "could not apply overlay \"%s\"\n", overlay_name);
|
|
return;
|
|
}
|
|
|
|
save_ovcs_id[1] = ovcs_id;
|
|
of_unittest_track_overlay(ovcs_id, overlay_nr + 1);
|
|
|
|
/* now try to remove first overlay (it should fail) */
|
|
ovcs_id = save_ovcs_id[0];
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: overlay: node_overlaps_later_cs: #6 overlaps with #7 @/testcase-data/overlay-node/test-bus/test-unittest8");
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: overlay: overlay #6 is not topmost");
|
|
|
|
ret = of_overlay_remove(&ovcs_id);
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: overlay: overlay #6 is not topmost");
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: overlay: node_overlaps_later_cs: #6 overlaps with #7 @/testcase-data/overlay-node/test-bus/test-unittest8");
|
|
|
|
if (!ret) {
|
|
/*
|
|
* Should never get here. If we do, expect a lot of
|
|
* subsequent tracking and overlay removal related errors.
|
|
*/
|
|
unittest(0, "%s was destroyed @\"%s\"\n",
|
|
overlay_name_from_nr(overlay_nr + 0),
|
|
unittest_path(unittest_nr,
|
|
PDEV_OVERLAY));
|
|
return;
|
|
}
|
|
|
|
/* removing them in order should work */
|
|
for (i = 1; i >= 0; i--) {
|
|
ovcs_id = save_ovcs_id[i];
|
|
if (of_overlay_remove(&ovcs_id)) {
|
|
unittest(0, "%s not destroyed @\"%s\"\n",
|
|
overlay_name_from_nr(overlay_nr + i),
|
|
unittest_path(unittest_nr,
|
|
PDEV_OVERLAY));
|
|
return;
|
|
}
|
|
of_unittest_untrack_overlay(save_ovcs_id[i]);
|
|
}
|
|
|
|
unittest(1, "overlay test %d passed\n", 8);
|
|
}
|
|
|
|
/* test insertion of a bus with parent devices */
|
|
static void __init of_unittest_overlay_10(void)
|
|
{
|
|
int ret;
|
|
char *child_path;
|
|
|
|
/* device should disable */
|
|
ret = of_unittest_apply_overlay_check(10, 10, 0, 1, PDEV_OVERLAY);
|
|
|
|
if (unittest(ret == 0,
|
|
"overlay test %d failed; overlay application\n", 10))
|
|
return;
|
|
|
|
child_path = kasprintf(GFP_KERNEL, "%s/test-unittest101",
|
|
unittest_path(10, PDEV_OVERLAY));
|
|
if (unittest(child_path, "overlay test %d failed; kasprintf\n", 10))
|
|
return;
|
|
|
|
ret = of_path_device_type_exists(child_path, PDEV_OVERLAY);
|
|
kfree(child_path);
|
|
|
|
unittest(ret, "overlay test %d failed; no child device\n", 10);
|
|
}
|
|
|
|
/* test insertion of a bus with parent devices (and revert) */
|
|
static void __init of_unittest_overlay_11(void)
|
|
{
|
|
int ret;
|
|
|
|
/* device should disable */
|
|
ret = of_unittest_apply_revert_overlay_check(11, 11, 0, 1,
|
|
PDEV_OVERLAY);
|
|
|
|
unittest(ret == 0, "overlay test %d failed; overlay apply\n", 11);
|
|
}
|
|
|
|
#if IS_BUILTIN(CONFIG_I2C) && IS_ENABLED(CONFIG_OF_OVERLAY)
|
|
|
|
struct unittest_i2c_bus_data {
|
|
struct platform_device *pdev;
|
|
struct i2c_adapter adap;
|
|
};
|
|
|
|
static int unittest_i2c_master_xfer(struct i2c_adapter *adap,
|
|
struct i2c_msg *msgs, int num)
|
|
{
|
|
struct unittest_i2c_bus_data *std = i2c_get_adapdata(adap);
|
|
|
|
(void)std;
|
|
|
|
return num;
|
|
}
|
|
|
|
static u32 unittest_i2c_functionality(struct i2c_adapter *adap)
|
|
{
|
|
return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
|
|
}
|
|
|
|
static const struct i2c_algorithm unittest_i2c_algo = {
|
|
.master_xfer = unittest_i2c_master_xfer,
|
|
.functionality = unittest_i2c_functionality,
|
|
};
|
|
|
|
static int unittest_i2c_bus_probe(struct platform_device *pdev)
|
|
{
|
|
struct device *dev = &pdev->dev;
|
|
struct device_node *np = dev->of_node;
|
|
struct unittest_i2c_bus_data *std;
|
|
struct i2c_adapter *adap;
|
|
int ret;
|
|
|
|
if (np == NULL) {
|
|
dev_err(dev, "No OF data for device\n");
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
dev_dbg(dev, "%s for node @%pOF\n", __func__, np);
|
|
|
|
std = devm_kzalloc(dev, sizeof(*std), GFP_KERNEL);
|
|
if (!std)
|
|
return -ENOMEM;
|
|
|
|
/* link them together */
|
|
std->pdev = pdev;
|
|
platform_set_drvdata(pdev, std);
|
|
|
|
adap = &std->adap;
|
|
i2c_set_adapdata(adap, std);
|
|
adap->nr = -1;
|
|
strscpy(adap->name, pdev->name, sizeof(adap->name));
|
|
adap->class = I2C_CLASS_DEPRECATED;
|
|
adap->algo = &unittest_i2c_algo;
|
|
adap->dev.parent = dev;
|
|
adap->dev.of_node = dev->of_node;
|
|
adap->timeout = 5 * HZ;
|
|
adap->retries = 3;
|
|
|
|
ret = i2c_add_numbered_adapter(adap);
|
|
if (ret != 0) {
|
|
dev_err(dev, "Failed to add I2C adapter\n");
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void unittest_i2c_bus_remove(struct platform_device *pdev)
|
|
{
|
|
struct device *dev = &pdev->dev;
|
|
struct device_node *np = dev->of_node;
|
|
struct unittest_i2c_bus_data *std = platform_get_drvdata(pdev);
|
|
|
|
dev_dbg(dev, "%s for node @%pOF\n", __func__, np);
|
|
i2c_del_adapter(&std->adap);
|
|
}
|
|
|
|
static const struct of_device_id unittest_i2c_bus_match[] = {
|
|
{ .compatible = "unittest-i2c-bus", },
|
|
{},
|
|
};
|
|
|
|
static struct platform_driver unittest_i2c_bus_driver = {
|
|
.probe = unittest_i2c_bus_probe,
|
|
.remove_new = unittest_i2c_bus_remove,
|
|
.driver = {
|
|
.name = "unittest-i2c-bus",
|
|
.of_match_table = unittest_i2c_bus_match,
|
|
},
|
|
};
|
|
|
|
static int unittest_i2c_dev_probe(struct i2c_client *client)
|
|
{
|
|
struct device *dev = &client->dev;
|
|
struct device_node *np = client->dev.of_node;
|
|
|
|
if (!np) {
|
|
dev_err(dev, "No OF node\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
dev_dbg(dev, "%s for node @%pOF\n", __func__, np);
|
|
|
|
return 0;
|
|
};
|
|
|
|
static void unittest_i2c_dev_remove(struct i2c_client *client)
|
|
{
|
|
struct device *dev = &client->dev;
|
|
struct device_node *np = client->dev.of_node;
|
|
|
|
dev_dbg(dev, "%s for node @%pOF\n", __func__, np);
|
|
}
|
|
|
|
static const struct i2c_device_id unittest_i2c_dev_id[] = {
|
|
{ .name = "unittest-i2c-dev" },
|
|
{ }
|
|
};
|
|
|
|
static struct i2c_driver unittest_i2c_dev_driver = {
|
|
.driver = {
|
|
.name = "unittest-i2c-dev",
|
|
},
|
|
.probe = unittest_i2c_dev_probe,
|
|
.remove = unittest_i2c_dev_remove,
|
|
.id_table = unittest_i2c_dev_id,
|
|
};
|
|
|
|
#if IS_BUILTIN(CONFIG_I2C_MUX)
|
|
|
|
static int unittest_i2c_mux_select_chan(struct i2c_mux_core *muxc, u32 chan)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int unittest_i2c_mux_probe(struct i2c_client *client)
|
|
{
|
|
int i, nchans;
|
|
struct device *dev = &client->dev;
|
|
struct i2c_adapter *adap = client->adapter;
|
|
struct device_node *np = client->dev.of_node, *child;
|
|
struct i2c_mux_core *muxc;
|
|
u32 reg, max_reg;
|
|
|
|
dev_dbg(dev, "%s for node @%pOF\n", __func__, np);
|
|
|
|
if (!np) {
|
|
dev_err(dev, "No OF node\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
max_reg = (u32)-1;
|
|
for_each_child_of_node(np, child) {
|
|
if (of_property_read_u32(child, "reg", ®))
|
|
continue;
|
|
if (max_reg == (u32)-1 || reg > max_reg)
|
|
max_reg = reg;
|
|
}
|
|
nchans = max_reg == (u32)-1 ? 0 : max_reg + 1;
|
|
if (nchans == 0) {
|
|
dev_err(dev, "No channels\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
muxc = i2c_mux_alloc(adap, dev, nchans, 0, 0,
|
|
unittest_i2c_mux_select_chan, NULL);
|
|
if (!muxc)
|
|
return -ENOMEM;
|
|
for (i = 0; i < nchans; i++) {
|
|
if (i2c_mux_add_adapter(muxc, 0, i, 0)) {
|
|
dev_err(dev, "Failed to register mux #%d\n", i);
|
|
i2c_mux_del_adapters(muxc);
|
|
return -ENODEV;
|
|
}
|
|
}
|
|
|
|
i2c_set_clientdata(client, muxc);
|
|
|
|
return 0;
|
|
};
|
|
|
|
static void unittest_i2c_mux_remove(struct i2c_client *client)
|
|
{
|
|
struct device *dev = &client->dev;
|
|
struct device_node *np = client->dev.of_node;
|
|
struct i2c_mux_core *muxc = i2c_get_clientdata(client);
|
|
|
|
dev_dbg(dev, "%s for node @%pOF\n", __func__, np);
|
|
i2c_mux_del_adapters(muxc);
|
|
}
|
|
|
|
static const struct i2c_device_id unittest_i2c_mux_id[] = {
|
|
{ .name = "unittest-i2c-mux" },
|
|
{ }
|
|
};
|
|
|
|
static struct i2c_driver unittest_i2c_mux_driver = {
|
|
.driver = {
|
|
.name = "unittest-i2c-mux",
|
|
},
|
|
.probe = unittest_i2c_mux_probe,
|
|
.remove = unittest_i2c_mux_remove,
|
|
.id_table = unittest_i2c_mux_id,
|
|
};
|
|
|
|
#endif
|
|
|
|
static int of_unittest_overlay_i2c_init(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = i2c_add_driver(&unittest_i2c_dev_driver);
|
|
if (unittest(ret == 0,
|
|
"could not register unittest i2c device driver\n"))
|
|
return ret;
|
|
|
|
ret = platform_driver_register(&unittest_i2c_bus_driver);
|
|
|
|
if (unittest(ret == 0,
|
|
"could not register unittest i2c bus driver\n"))
|
|
return ret;
|
|
|
|
#if IS_BUILTIN(CONFIG_I2C_MUX)
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"i2c i2c-1: Added multiplexed i2c bus 2");
|
|
|
|
ret = i2c_add_driver(&unittest_i2c_mux_driver);
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"i2c i2c-1: Added multiplexed i2c bus 2");
|
|
|
|
if (unittest(ret == 0,
|
|
"could not register unittest i2c mux driver\n"))
|
|
return ret;
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void of_unittest_overlay_i2c_cleanup(void)
|
|
{
|
|
#if IS_BUILTIN(CONFIG_I2C_MUX)
|
|
i2c_del_driver(&unittest_i2c_mux_driver);
|
|
#endif
|
|
platform_driver_unregister(&unittest_i2c_bus_driver);
|
|
i2c_del_driver(&unittest_i2c_dev_driver);
|
|
}
|
|
|
|
static void __init of_unittest_overlay_i2c_12(void)
|
|
{
|
|
int ret;
|
|
|
|
/* device should enable */
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest12/status");
|
|
|
|
ret = of_unittest_apply_overlay_check(12, 12, 0, 1, I2C_OVERLAY);
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest12/status");
|
|
|
|
if (ret)
|
|
return;
|
|
|
|
unittest(1, "overlay test %d passed\n", 12);
|
|
}
|
|
|
|
/* test deactivation of device */
|
|
static void __init of_unittest_overlay_i2c_13(void)
|
|
{
|
|
int ret;
|
|
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest13/status");
|
|
|
|
/* device should disable */
|
|
ret = of_unittest_apply_overlay_check(13, 13, 1, 0, I2C_OVERLAY);
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest13/status");
|
|
|
|
if (ret)
|
|
return;
|
|
|
|
unittest(1, "overlay test %d passed\n", 13);
|
|
}
|
|
|
|
/* just check for i2c mux existence */
|
|
static void of_unittest_overlay_i2c_14(void)
|
|
{
|
|
}
|
|
|
|
static void __init of_unittest_overlay_i2c_15(void)
|
|
{
|
|
int ret;
|
|
|
|
/* device should enable */
|
|
EXPECT_BEGIN(KERN_INFO,
|
|
"i2c i2c-1: Added multiplexed i2c bus 3");
|
|
|
|
ret = of_unittest_apply_overlay_check(15, 15, 0, 1, I2C_OVERLAY);
|
|
|
|
EXPECT_END(KERN_INFO,
|
|
"i2c i2c-1: Added multiplexed i2c bus 3");
|
|
|
|
if (ret)
|
|
return;
|
|
|
|
unittest(1, "overlay test %d passed\n", 15);
|
|
}
|
|
|
|
#else
|
|
|
|
static inline void of_unittest_overlay_i2c_14(void) { }
|
|
static inline void of_unittest_overlay_i2c_15(void) { }
|
|
|
|
#endif
|
|
|
|
static int of_notify(struct notifier_block *nb, unsigned long action,
|
|
void *arg)
|
|
{
|
|
struct of_overlay_notify_data *nd = arg;
|
|
struct device_node *found;
|
|
int ret;
|
|
|
|
/*
|
|
* For overlay_16 .. overlay_19, check that returning an error
|
|
* works for each of the actions by setting an arbitrary return
|
|
* error number that matches the test number. e.g. for unittest16,
|
|
* ret = -EBUSY which is -16.
|
|
*
|
|
* OVERLAY_INFO() for the overlays is declared to expect the same
|
|
* error number, so overlay_data_apply() will return no error.
|
|
*
|
|
* overlay_20 will return NOTIFY_DONE
|
|
*/
|
|
|
|
ret = 0;
|
|
of_node_get(nd->overlay);
|
|
|
|
switch (action) {
|
|
|
|
case OF_OVERLAY_PRE_APPLY:
|
|
found = of_find_node_by_name(nd->overlay, "test-unittest16");
|
|
if (found) {
|
|
of_node_put(found);
|
|
ret = -EBUSY;
|
|
}
|
|
break;
|
|
|
|
case OF_OVERLAY_POST_APPLY:
|
|
found = of_find_node_by_name(nd->overlay, "test-unittest17");
|
|
if (found) {
|
|
of_node_put(found);
|
|
ret = -EEXIST;
|
|
}
|
|
break;
|
|
|
|
case OF_OVERLAY_PRE_REMOVE:
|
|
found = of_find_node_by_name(nd->overlay, "test-unittest18");
|
|
if (found) {
|
|
of_node_put(found);
|
|
ret = -EXDEV;
|
|
}
|
|
break;
|
|
|
|
case OF_OVERLAY_POST_REMOVE:
|
|
found = of_find_node_by_name(nd->overlay, "test-unittest19");
|
|
if (found) {
|
|
of_node_put(found);
|
|
ret = -ENODEV;
|
|
}
|
|
break;
|
|
|
|
default: /* should not happen */
|
|
of_node_put(nd->overlay);
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
if (ret)
|
|
return notifier_from_errno(ret);
|
|
|
|
return NOTIFY_DONE;
|
|
}
|
|
|
|
static struct notifier_block of_nb = {
|
|
.notifier_call = of_notify,
|
|
};
|
|
|
|
static void __init of_unittest_overlay_notify(void)
|
|
{
|
|
int ovcs_id;
|
|
int ret;
|
|
|
|
ret = of_overlay_notifier_register(&of_nb);
|
|
unittest(!ret,
|
|
"of_overlay_notifier_register() failed, ret = %d\n", ret);
|
|
if (ret)
|
|
return;
|
|
|
|
/*
|
|
* The overlays are applied by overlay_data_apply()
|
|
* instead of of_unittest_apply_overlay() so that they
|
|
* will not be tracked. Thus they will not be removed
|
|
* by of_unittest_remove_tracked_overlays().
|
|
*
|
|
* Applying overlays 16 - 19 will each trigger an error for a
|
|
* different action in of_notify().
|
|
*
|
|
* Applying overlay 20 will not trigger any error in of_notify().
|
|
*/
|
|
|
|
/* --- overlay 16 --- */
|
|
|
|
EXPECT_BEGIN(KERN_INFO, "OF: overlay: overlay changeset pre-apply notifier error -16, target: /testcase-data/overlay-node/test-bus");
|
|
|
|
unittest(overlay_data_apply("overlay_16", &ovcs_id),
|
|
"test OF_OVERLAY_PRE_APPLY notify injected error\n");
|
|
|
|
EXPECT_END(KERN_INFO, "OF: overlay: overlay changeset pre-apply notifier error -16, target: /testcase-data/overlay-node/test-bus");
|
|
|
|
unittest(ovcs_id, "ovcs_id not created for overlay_16\n");
|
|
|
|
/* --- overlay 17 --- */
|
|
|
|
EXPECT_BEGIN(KERN_INFO, "OF: overlay: overlay changeset post-apply notifier error -17, target: /testcase-data/overlay-node/test-bus");
|
|
|
|
unittest(overlay_data_apply("overlay_17", &ovcs_id),
|
|
"test OF_OVERLAY_POST_APPLY notify injected error\n");
|
|
|
|
EXPECT_END(KERN_INFO, "OF: overlay: overlay changeset post-apply notifier error -17, target: /testcase-data/overlay-node/test-bus");
|
|
|
|
unittest(ovcs_id, "ovcs_id not created for overlay_17\n");
|
|
|
|
/* --- overlay 18 --- */
|
|
|
|
unittest(overlay_data_apply("overlay_18", &ovcs_id),
|
|
"OF_OVERLAY_PRE_REMOVE notify injected error\n");
|
|
|
|
unittest(ovcs_id, "ovcs_id not created for overlay_18\n");
|
|
|
|
if (ovcs_id) {
|
|
EXPECT_BEGIN(KERN_INFO, "OF: overlay: overlay changeset pre-remove notifier error -18, target: /testcase-data/overlay-node/test-bus");
|
|
|
|
ret = of_overlay_remove(&ovcs_id);
|
|
EXPECT_END(KERN_INFO, "OF: overlay: overlay changeset pre-remove notifier error -18, target: /testcase-data/overlay-node/test-bus");
|
|
if (ret == -EXDEV) {
|
|
/*
|
|
* change set ovcs_id should still exist
|
|
*/
|
|
unittest(1, "overlay_18 of_overlay_remove() injected error for OF_OVERLAY_PRE_REMOVE\n");
|
|
} else {
|
|
unittest(0, "overlay_18 of_overlay_remove() injected error for OF_OVERLAY_PRE_REMOVE not returned\n");
|
|
}
|
|
} else {
|
|
unittest(1, "ovcs_id not created for overlay_18\n");
|
|
}
|
|
|
|
unittest(ovcs_id, "ovcs_id removed for overlay_18\n");
|
|
|
|
/* --- overlay 19 --- */
|
|
|
|
unittest(overlay_data_apply("overlay_19", &ovcs_id),
|
|
"OF_OVERLAY_POST_REMOVE notify injected error\n");
|
|
|
|
unittest(ovcs_id, "ovcs_id not created for overlay_19\n");
|
|
|
|
if (ovcs_id) {
|
|
EXPECT_BEGIN(KERN_INFO, "OF: overlay: overlay changeset post-remove notifier error -19, target: /testcase-data/overlay-node/test-bus");
|
|
ret = of_overlay_remove(&ovcs_id);
|
|
EXPECT_END(KERN_INFO, "OF: overlay: overlay changeset post-remove notifier error -19, target: /testcase-data/overlay-node/test-bus");
|
|
if (ret == -ENODEV)
|
|
unittest(1, "overlay_19 of_overlay_remove() injected error for OF_OVERLAY_POST_REMOVE\n");
|
|
else
|
|
unittest(0, "overlay_19 of_overlay_remove() injected error for OF_OVERLAY_POST_REMOVE not returned\n");
|
|
} else {
|
|
unittest(1, "ovcs_id removed for overlay_19\n");
|
|
}
|
|
|
|
unittest(!ovcs_id, "changeset ovcs_id = %d not removed for overlay_19\n",
|
|
ovcs_id);
|
|
|
|
/* --- overlay 20 --- */
|
|
|
|
unittest(overlay_data_apply("overlay_20", &ovcs_id),
|
|
"overlay notify no injected error\n");
|
|
|
|
if (ovcs_id) {
|
|
ret = of_overlay_remove(&ovcs_id);
|
|
if (ret)
|
|
unittest(1, "overlay_20 failed to be destroyed, ret = %d\n",
|
|
ret);
|
|
} else {
|
|
unittest(1, "ovcs_id not created for overlay_20\n");
|
|
}
|
|
|
|
unittest(!of_overlay_notifier_unregister(&of_nb),
|
|
"of_overlay_notifier_unregister() failed, ret = %d\n", ret);
|
|
}
|
|
|
|
static void __init of_unittest_overlay(void)
|
|
{
|
|
struct device_node *bus_np = NULL;
|
|
unsigned int i;
|
|
|
|
if (platform_driver_register(&unittest_driver)) {
|
|
unittest(0, "could not register unittest driver\n");
|
|
goto out;
|
|
}
|
|
|
|
bus_np = of_find_node_by_path(bus_path);
|
|
if (bus_np == NULL) {
|
|
unittest(0, "could not find bus_path \"%s\"\n", bus_path);
|
|
goto out;
|
|
}
|
|
|
|
if (of_platform_default_populate(bus_np, NULL, NULL)) {
|
|
unittest(0, "could not populate bus @ \"%s\"\n", bus_path);
|
|
goto out;
|
|
}
|
|
|
|
if (!of_unittest_device_exists(100, PDEV_OVERLAY)) {
|
|
unittest(0, "could not find unittest0 @ \"%s\"\n",
|
|
unittest_path(100, PDEV_OVERLAY));
|
|
goto out;
|
|
}
|
|
|
|
if (of_unittest_device_exists(101, PDEV_OVERLAY)) {
|
|
unittest(0, "unittest1 @ \"%s\" should not exist\n",
|
|
unittest_path(101, PDEV_OVERLAY));
|
|
goto out;
|
|
}
|
|
|
|
unittest(1, "basic infrastructure of overlays passed");
|
|
|
|
/* tests in sequence */
|
|
of_unittest_overlay_0();
|
|
of_unittest_overlay_1();
|
|
of_unittest_overlay_2();
|
|
of_unittest_overlay_3();
|
|
of_unittest_overlay_4();
|
|
for (i = 0; i < 3; i++)
|
|
of_unittest_overlay_5();
|
|
of_unittest_overlay_6();
|
|
of_unittest_overlay_8();
|
|
|
|
of_unittest_overlay_10();
|
|
of_unittest_overlay_11();
|
|
|
|
#if IS_BUILTIN(CONFIG_I2C)
|
|
if (unittest(of_unittest_overlay_i2c_init() == 0, "i2c init failed\n"))
|
|
goto out;
|
|
|
|
of_unittest_overlay_i2c_12();
|
|
of_unittest_overlay_i2c_13();
|
|
of_unittest_overlay_i2c_14();
|
|
of_unittest_overlay_i2c_15();
|
|
|
|
of_unittest_overlay_i2c_cleanup();
|
|
#endif
|
|
|
|
of_unittest_overlay_gpio();
|
|
|
|
of_unittest_remove_tracked_overlays();
|
|
|
|
of_unittest_overlay_notify();
|
|
|
|
out:
|
|
of_node_put(bus_np);
|
|
}
|
|
|
|
#else
|
|
static inline void __init of_unittest_overlay(void) { }
|
|
#endif
|
|
|
|
static void __init of_unittest_lifecycle(void)
|
|
{
|
|
#ifdef CONFIG_OF_DYNAMIC
|
|
unsigned int refcount;
|
|
int found_refcount_one = 0;
|
|
int put_count = 0;
|
|
struct device_node *np;
|
|
struct device_node *prev_sibling, *next_sibling;
|
|
const char *refcount_path = "/testcase-data/refcount-node";
|
|
const char *refcount_parent_path = "/testcase-data";
|
|
|
|
/*
|
|
* Node lifecycle tests, non-dynamic node:
|
|
*
|
|
* - Decrementing refcount to zero via of_node_put() should cause the
|
|
* attempt to free the node memory by of_node_release() to fail
|
|
* because the node is not a dynamic node.
|
|
*
|
|
* - Decrementing refcount past zero should result in additional
|
|
* errors reported.
|
|
*/
|
|
|
|
np = of_find_node_by_path(refcount_path);
|
|
unittest(np, "find refcount_path \"%s\"\n", refcount_path);
|
|
if (np == NULL)
|
|
goto out_skip_tests;
|
|
|
|
while (!found_refcount_one) {
|
|
|
|
if (put_count++ > 10) {
|
|
unittest(0, "guardrail to avoid infinite loop\n");
|
|
goto out_skip_tests;
|
|
}
|
|
|
|
refcount = kref_read(&np->kobj.kref);
|
|
if (refcount == 1)
|
|
found_refcount_one = 1;
|
|
else
|
|
of_node_put(np);
|
|
}
|
|
|
|
EXPECT_BEGIN(KERN_INFO, "OF: ERROR: of_node_release() detected bad of_node_put() on /testcase-data/refcount-node");
|
|
|
|
/*
|
|
* refcount is now one, decrementing to zero will result in a call to
|
|
* of_node_release() to free the node's memory, which should result
|
|
* in an error
|
|
*/
|
|
unittest(1, "/testcase-data/refcount-node is one");
|
|
of_node_put(np);
|
|
|
|
EXPECT_END(KERN_INFO, "OF: ERROR: of_node_release() detected bad of_node_put() on /testcase-data/refcount-node");
|
|
|
|
|
|
/*
|
|
* expect stack trace for subsequent of_node_put():
|
|
* __refcount_sub_and_test() calls:
|
|
* refcount_warn_saturate(r, REFCOUNT_SUB_UAF)
|
|
*
|
|
* Not capturing entire WARN_ONCE() trace with EXPECT_*(), just
|
|
* the first three lines, and the last line.
|
|
*/
|
|
EXPECT_BEGIN(KERN_INFO, "------------[ cut here ]------------");
|
|
EXPECT_BEGIN(KERN_INFO, "WARNING: <<all>>");
|
|
EXPECT_BEGIN(KERN_INFO, "refcount_t: underflow; use-after-free.");
|
|
EXPECT_BEGIN(KERN_INFO, "---[ end trace <<int>> ]---");
|
|
|
|
/* refcount is now zero, this should fail */
|
|
unittest(1, "/testcase-data/refcount-node is zero");
|
|
of_node_put(np);
|
|
|
|
EXPECT_END(KERN_INFO, "---[ end trace <<int>> ]---");
|
|
EXPECT_END(KERN_INFO, "refcount_t: underflow; use-after-free.");
|
|
EXPECT_END(KERN_INFO, "WARNING: <<all>>");
|
|
EXPECT_END(KERN_INFO, "------------[ cut here ]------------");
|
|
|
|
/*
|
|
* Q. do we expect to get yet another warning?
|
|
* A. no, the WARNING is from WARN_ONCE()
|
|
*/
|
|
EXPECT_NOT_BEGIN(KERN_INFO, "------------[ cut here ]------------");
|
|
EXPECT_NOT_BEGIN(KERN_INFO, "WARNING: <<all>>");
|
|
EXPECT_NOT_BEGIN(KERN_INFO, "refcount_t: underflow; use-after-free.");
|
|
EXPECT_NOT_BEGIN(KERN_INFO, "---[ end trace <<int>> ]---");
|
|
|
|
unittest(1, "/testcase-data/refcount-node is zero, second time");
|
|
of_node_put(np);
|
|
|
|
EXPECT_NOT_END(KERN_INFO, "---[ end trace <<int>> ]---");
|
|
EXPECT_NOT_END(KERN_INFO, "refcount_t: underflow; use-after-free.");
|
|
EXPECT_NOT_END(KERN_INFO, "WARNING: <<all>>");
|
|
EXPECT_NOT_END(KERN_INFO, "------------[ cut here ]------------");
|
|
|
|
/*
|
|
* refcount of zero will trigger stack traces from any further
|
|
* attempt to of_node_get() node "refcount-node". One example of
|
|
* this is where of_unittest_check_node_linkage() will recursively
|
|
* scan the tree, with 'for_each_child_of_node()' doing an
|
|
* of_node_get() of the children of a node.
|
|
*
|
|
* Prevent the stack trace by removing node "refcount-node" from
|
|
* its parent's child list.
|
|
*
|
|
* WARNING: EVIL, EVIL, EVIL:
|
|
*
|
|
* Directly manipulate the child list of node /testcase-data to
|
|
* remove child refcount-node. This is ignoring all proper methods
|
|
* of removing a child and will leak a small amount of memory.
|
|
*/
|
|
|
|
np = of_find_node_by_path(refcount_parent_path);
|
|
unittest(np, "find refcount_parent_path \"%s\"\n", refcount_parent_path);
|
|
unittest(np, "ERROR: devicetree live tree left in a 'bad state' if test fail\n");
|
|
if (np == NULL)
|
|
return;
|
|
|
|
prev_sibling = np->child;
|
|
next_sibling = prev_sibling->sibling;
|
|
if (!strcmp(prev_sibling->full_name, "refcount-node")) {
|
|
np->child = next_sibling;
|
|
next_sibling = next_sibling->sibling;
|
|
}
|
|
while (next_sibling) {
|
|
if (!strcmp(next_sibling->full_name, "refcount-node"))
|
|
prev_sibling->sibling = next_sibling->sibling;
|
|
prev_sibling = next_sibling;
|
|
next_sibling = next_sibling->sibling;
|
|
}
|
|
of_node_put(np);
|
|
|
|
return;
|
|
|
|
out_skip_tests:
|
|
#endif
|
|
unittest(0, "One or more lifecycle tests skipped\n");
|
|
}
|
|
|
|
#ifdef CONFIG_OF_OVERLAY
|
|
|
|
/*
|
|
* __dtbo_##overlay_name##_begin[] and __dtbo_##overlay_name##_end[] are
|
|
* created by cmd_dt_S_dtbo in scripts/Makefile.lib
|
|
*/
|
|
|
|
#define OVERLAY_INFO_EXTERN(overlay_name) \
|
|
extern uint8_t __dtbo_##overlay_name##_begin[]; \
|
|
extern uint8_t __dtbo_##overlay_name##_end[]
|
|
|
|
#define OVERLAY_INFO(overlay_name, expected, expected_remove) \
|
|
{ .dtbo_begin = __dtbo_##overlay_name##_begin, \
|
|
.dtbo_end = __dtbo_##overlay_name##_end, \
|
|
.expected_result = expected, \
|
|
.expected_result_remove = expected_remove, \
|
|
.name = #overlay_name, \
|
|
}
|
|
|
|
struct overlay_info {
|
|
uint8_t *dtbo_begin;
|
|
uint8_t *dtbo_end;
|
|
int expected_result;
|
|
int expected_result_remove; /* if apply failed */
|
|
int ovcs_id;
|
|
char *name;
|
|
};
|
|
|
|
OVERLAY_INFO_EXTERN(overlay_base);
|
|
OVERLAY_INFO_EXTERN(overlay);
|
|
OVERLAY_INFO_EXTERN(overlay_0);
|
|
OVERLAY_INFO_EXTERN(overlay_1);
|
|
OVERLAY_INFO_EXTERN(overlay_2);
|
|
OVERLAY_INFO_EXTERN(overlay_3);
|
|
OVERLAY_INFO_EXTERN(overlay_4);
|
|
OVERLAY_INFO_EXTERN(overlay_5);
|
|
OVERLAY_INFO_EXTERN(overlay_6);
|
|
OVERLAY_INFO_EXTERN(overlay_7);
|
|
OVERLAY_INFO_EXTERN(overlay_8);
|
|
OVERLAY_INFO_EXTERN(overlay_9);
|
|
OVERLAY_INFO_EXTERN(overlay_10);
|
|
OVERLAY_INFO_EXTERN(overlay_11);
|
|
OVERLAY_INFO_EXTERN(overlay_12);
|
|
OVERLAY_INFO_EXTERN(overlay_13);
|
|
OVERLAY_INFO_EXTERN(overlay_15);
|
|
OVERLAY_INFO_EXTERN(overlay_16);
|
|
OVERLAY_INFO_EXTERN(overlay_17);
|
|
OVERLAY_INFO_EXTERN(overlay_18);
|
|
OVERLAY_INFO_EXTERN(overlay_19);
|
|
OVERLAY_INFO_EXTERN(overlay_20);
|
|
OVERLAY_INFO_EXTERN(overlay_gpio_01);
|
|
OVERLAY_INFO_EXTERN(overlay_gpio_02a);
|
|
OVERLAY_INFO_EXTERN(overlay_gpio_02b);
|
|
OVERLAY_INFO_EXTERN(overlay_gpio_03);
|
|
OVERLAY_INFO_EXTERN(overlay_gpio_04a);
|
|
OVERLAY_INFO_EXTERN(overlay_gpio_04b);
|
|
OVERLAY_INFO_EXTERN(overlay_pci_node);
|
|
OVERLAY_INFO_EXTERN(overlay_bad_add_dup_node);
|
|
OVERLAY_INFO_EXTERN(overlay_bad_add_dup_prop);
|
|
OVERLAY_INFO_EXTERN(overlay_bad_phandle);
|
|
OVERLAY_INFO_EXTERN(overlay_bad_symbol);
|
|
OVERLAY_INFO_EXTERN(overlay_bad_unresolved);
|
|
|
|
/* entries found by name */
|
|
static struct overlay_info overlays[] = {
|
|
OVERLAY_INFO(overlay_base, -9999, 0),
|
|
OVERLAY_INFO(overlay, 0, 0),
|
|
OVERLAY_INFO(overlay_0, 0, 0),
|
|
OVERLAY_INFO(overlay_1, 0, 0),
|
|
OVERLAY_INFO(overlay_2, 0, 0),
|
|
OVERLAY_INFO(overlay_3, 0, 0),
|
|
OVERLAY_INFO(overlay_4, 0, 0),
|
|
OVERLAY_INFO(overlay_5, 0, 0),
|
|
OVERLAY_INFO(overlay_6, 0, 0),
|
|
OVERLAY_INFO(overlay_7, 0, 0),
|
|
OVERLAY_INFO(overlay_8, 0, 0),
|
|
OVERLAY_INFO(overlay_9, 0, 0),
|
|
OVERLAY_INFO(overlay_10, 0, 0),
|
|
OVERLAY_INFO(overlay_11, 0, 0),
|
|
OVERLAY_INFO(overlay_12, 0, 0),
|
|
OVERLAY_INFO(overlay_13, 0, 0),
|
|
OVERLAY_INFO(overlay_15, 0, 0),
|
|
OVERLAY_INFO(overlay_16, -EBUSY, 0),
|
|
OVERLAY_INFO(overlay_17, -EEXIST, 0),
|
|
OVERLAY_INFO(overlay_18, 0, 0),
|
|
OVERLAY_INFO(overlay_19, 0, 0),
|
|
OVERLAY_INFO(overlay_20, 0, 0),
|
|
OVERLAY_INFO(overlay_gpio_01, 0, 0),
|
|
OVERLAY_INFO(overlay_gpio_02a, 0, 0),
|
|
OVERLAY_INFO(overlay_gpio_02b, 0, 0),
|
|
OVERLAY_INFO(overlay_gpio_03, 0, 0),
|
|
OVERLAY_INFO(overlay_gpio_04a, 0, 0),
|
|
OVERLAY_INFO(overlay_gpio_04b, 0, 0),
|
|
OVERLAY_INFO(overlay_pci_node, 0, 0),
|
|
OVERLAY_INFO(overlay_bad_add_dup_node, -EINVAL, -ENODEV),
|
|
OVERLAY_INFO(overlay_bad_add_dup_prop, -EINVAL, -ENODEV),
|
|
OVERLAY_INFO(overlay_bad_phandle, -EINVAL, 0),
|
|
OVERLAY_INFO(overlay_bad_symbol, -EINVAL, -ENODEV),
|
|
OVERLAY_INFO(overlay_bad_unresolved, -EINVAL, 0),
|
|
/* end marker */
|
|
{ }
|
|
};
|
|
|
|
static struct device_node *overlay_base_root;
|
|
|
|
static void * __init dt_alloc_memory(u64 size, u64 align)
|
|
{
|
|
void *ptr = memblock_alloc(size, align);
|
|
|
|
if (!ptr)
|
|
panic("%s: Failed to allocate %llu bytes align=0x%llx\n",
|
|
__func__, size, align);
|
|
|
|
return ptr;
|
|
}
|
|
|
|
/*
|
|
* Create base device tree for the overlay unittest.
|
|
*
|
|
* This is called from very early boot code.
|
|
*
|
|
* Do as much as possible the same way as done in __unflatten_device_tree
|
|
* and other early boot steps for the normal FDT so that the overlay base
|
|
* unflattened tree will have the same characteristics as the real tree
|
|
* (such as having memory allocated by the early allocator). The goal
|
|
* is to test "the real thing" as much as possible, and test "test setup
|
|
* code" as little as possible.
|
|
*
|
|
* Have to stop before resolving phandles, because that uses kmalloc.
|
|
*/
|
|
void __init unittest_unflatten_overlay_base(void)
|
|
{
|
|
struct overlay_info *info;
|
|
u32 data_size;
|
|
void *new_fdt;
|
|
u32 size;
|
|
int found = 0;
|
|
const char *overlay_name = "overlay_base";
|
|
|
|
for (info = overlays; info && info->name; info++) {
|
|
if (!strcmp(overlay_name, info->name)) {
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (!found) {
|
|
pr_err("no overlay data for %s\n", overlay_name);
|
|
return;
|
|
}
|
|
|
|
info = &overlays[0];
|
|
|
|
if (info->expected_result != -9999) {
|
|
pr_err("No dtb 'overlay_base' to attach\n");
|
|
return;
|
|
}
|
|
|
|
data_size = info->dtbo_end - info->dtbo_begin;
|
|
if (!data_size) {
|
|
pr_err("No dtb 'overlay_base' to attach\n");
|
|
return;
|
|
}
|
|
|
|
size = fdt_totalsize(info->dtbo_begin);
|
|
if (size != data_size) {
|
|
pr_err("dtb 'overlay_base' header totalsize != actual size");
|
|
return;
|
|
}
|
|
|
|
new_fdt = dt_alloc_memory(size, roundup_pow_of_two(FDT_V17_SIZE));
|
|
if (!new_fdt) {
|
|
pr_err("alloc for dtb 'overlay_base' failed");
|
|
return;
|
|
}
|
|
|
|
memcpy(new_fdt, info->dtbo_begin, size);
|
|
|
|
__unflatten_device_tree(new_fdt, NULL, &overlay_base_root,
|
|
dt_alloc_memory, true);
|
|
}
|
|
|
|
/*
|
|
* The purpose of of_unittest_overlay_data_add is to add an
|
|
* overlay in the normal fashion. This is a test of the whole
|
|
* picture, instead of testing individual elements.
|
|
*
|
|
* A secondary purpose is to be able to verify that the contents of
|
|
* /proc/device-tree/ contains the updated structure and values from
|
|
* the overlay. That must be verified separately in user space.
|
|
*
|
|
* Return 0 on unexpected error.
|
|
*/
|
|
static int __init overlay_data_apply(const char *overlay_name, int *ovcs_id)
|
|
{
|
|
struct overlay_info *info;
|
|
int passed = 1;
|
|
int found = 0;
|
|
int ret, ret2;
|
|
u32 size;
|
|
|
|
for (info = overlays; info && info->name; info++) {
|
|
if (!strcmp(overlay_name, info->name)) {
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (!found) {
|
|
pr_err("no overlay data for %s\n", overlay_name);
|
|
return 0;
|
|
}
|
|
|
|
size = info->dtbo_end - info->dtbo_begin;
|
|
if (!size)
|
|
pr_err("no overlay data for %s\n", overlay_name);
|
|
|
|
ret = of_overlay_fdt_apply(info->dtbo_begin, size, &info->ovcs_id,
|
|
NULL);
|
|
if (ovcs_id)
|
|
*ovcs_id = info->ovcs_id;
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
pr_debug("%s applied\n", overlay_name);
|
|
|
|
out:
|
|
if (ret != info->expected_result) {
|
|
pr_err("of_overlay_fdt_apply() expected %d, ret=%d, %s\n",
|
|
info->expected_result, ret, overlay_name);
|
|
passed = 0;
|
|
}
|
|
|
|
if (ret < 0) {
|
|
/* changeset may be partially applied */
|
|
ret2 = of_overlay_remove(&info->ovcs_id);
|
|
if (ret2 != info->expected_result_remove) {
|
|
pr_err("of_overlay_remove() expected %d, ret=%d, %s\n",
|
|
info->expected_result_remove, ret2,
|
|
overlay_name);
|
|
passed = 0;
|
|
}
|
|
}
|
|
|
|
return passed;
|
|
}
|
|
|
|
/*
|
|
* The purpose of of_unittest_overlay_high_level is to add an overlay
|
|
* in the normal fashion. This is a test of the whole picture,
|
|
* instead of individual elements.
|
|
*
|
|
* The first part of the function is _not_ normal overlay usage; it is
|
|
* finishing splicing the base overlay device tree into the live tree.
|
|
*/
|
|
static __init void of_unittest_overlay_high_level(void)
|
|
{
|
|
struct device_node *last_sibling;
|
|
struct device_node *np;
|
|
struct device_node *of_symbols;
|
|
struct device_node *overlay_base_symbols;
|
|
struct device_node **pprev;
|
|
struct property *prop;
|
|
int ret;
|
|
|
|
if (!overlay_base_root) {
|
|
unittest(0, "overlay_base_root not initialized\n");
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Could not fixup phandles in unittest_unflatten_overlay_base()
|
|
* because kmalloc() was not yet available.
|
|
*/
|
|
of_overlay_mutex_lock();
|
|
of_resolve_phandles(overlay_base_root);
|
|
of_overlay_mutex_unlock();
|
|
|
|
|
|
/*
|
|
* do not allow overlay_base to duplicate any node already in
|
|
* tree, this greatly simplifies the code
|
|
*/
|
|
|
|
/*
|
|
* remove overlay_base_root node "__local_fixups", after
|
|
* being used by of_resolve_phandles()
|
|
*/
|
|
pprev = &overlay_base_root->child;
|
|
for (np = overlay_base_root->child; np; np = np->sibling) {
|
|
if (of_node_name_eq(np, "__local_fixups__")) {
|
|
*pprev = np->sibling;
|
|
break;
|
|
}
|
|
pprev = &np->sibling;
|
|
}
|
|
|
|
/* remove overlay_base_root node "__symbols__" if in live tree */
|
|
of_symbols = of_get_child_by_name(of_root, "__symbols__");
|
|
if (of_symbols) {
|
|
/* will have to graft properties from node into live tree */
|
|
pprev = &overlay_base_root->child;
|
|
for (np = overlay_base_root->child; np; np = np->sibling) {
|
|
if (of_node_name_eq(np, "__symbols__")) {
|
|
overlay_base_symbols = np;
|
|
*pprev = np->sibling;
|
|
break;
|
|
}
|
|
pprev = &np->sibling;
|
|
}
|
|
}
|
|
|
|
for_each_child_of_node(overlay_base_root, np) {
|
|
struct device_node *base_child;
|
|
for_each_child_of_node(of_root, base_child) {
|
|
if (!strcmp(np->full_name, base_child->full_name)) {
|
|
unittest(0, "illegal node name in overlay_base %pOFn",
|
|
np);
|
|
of_node_put(np);
|
|
of_node_put(base_child);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* overlay 'overlay_base' is not allowed to have root
|
|
* properties, so only need to splice nodes into main device tree.
|
|
*
|
|
* root node of *overlay_base_root will not be freed, it is lost
|
|
* memory.
|
|
*/
|
|
|
|
for (np = overlay_base_root->child; np; np = np->sibling)
|
|
np->parent = of_root;
|
|
|
|
mutex_lock(&of_mutex);
|
|
|
|
for (last_sibling = np = of_root->child; np; np = np->sibling)
|
|
last_sibling = np;
|
|
|
|
if (last_sibling)
|
|
last_sibling->sibling = overlay_base_root->child;
|
|
else
|
|
of_root->child = overlay_base_root->child;
|
|
|
|
for_each_of_allnodes_from(overlay_base_root, np)
|
|
__of_attach_node_sysfs(np);
|
|
|
|
if (of_symbols) {
|
|
struct property *new_prop;
|
|
for_each_property_of_node(overlay_base_symbols, prop) {
|
|
|
|
new_prop = __of_prop_dup(prop, GFP_KERNEL);
|
|
if (!new_prop) {
|
|
unittest(0, "__of_prop_dup() of '%s' from overlay_base node __symbols__",
|
|
prop->name);
|
|
goto err_unlock;
|
|
}
|
|
if (__of_add_property(of_symbols, new_prop)) {
|
|
kfree(new_prop->name);
|
|
kfree(new_prop->value);
|
|
kfree(new_prop);
|
|
/* "name" auto-generated by unflatten */
|
|
if (!strcmp(prop->name, "name"))
|
|
continue;
|
|
unittest(0, "duplicate property '%s' in overlay_base node __symbols__",
|
|
prop->name);
|
|
goto err_unlock;
|
|
}
|
|
if (__of_add_property_sysfs(of_symbols, new_prop)) {
|
|
unittest(0, "unable to add property '%s' in overlay_base node __symbols__ to sysfs",
|
|
prop->name);
|
|
goto err_unlock;
|
|
}
|
|
}
|
|
}
|
|
|
|
mutex_unlock(&of_mutex);
|
|
|
|
|
|
/* now do the normal overlay usage test */
|
|
|
|
/* --- overlay --- */
|
|
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/status");
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/status");
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@30/incline-up");
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@40/incline-up");
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/status");
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/color");
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/rate");
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/hvac_2");
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200");
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_left");
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_right");
|
|
|
|
ret = overlay_data_apply("overlay", NULL);
|
|
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_right");
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_left");
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200");
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/hvac_2");
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/rate");
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/color");
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/status");
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@40/incline-up");
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@30/incline-up");
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/status");
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/status");
|
|
|
|
unittest(ret, "Adding overlay 'overlay' failed\n");
|
|
|
|
/* --- overlay_bad_add_dup_node --- */
|
|
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/controller");
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/controller/name");
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: changeset: apply failed: REMOVE_PROPERTY /testcase-data-2/substation@100/motor-1/controller:name");
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: Error reverting changeset (-19)");
|
|
|
|
unittest(overlay_data_apply("overlay_bad_add_dup_node", NULL),
|
|
"Adding overlay 'overlay_bad_add_dup_node' failed\n");
|
|
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: Error reverting changeset (-19)");
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: changeset: apply failed: REMOVE_PROPERTY /testcase-data-2/substation@100/motor-1/controller:name");
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/controller/name");
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/controller");
|
|
|
|
/* --- overlay_bad_add_dup_prop --- */
|
|
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/electric");
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/rpm_avail");
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/name");
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: changeset: apply failed: REMOVE_PROPERTY /testcase-data-2/substation@100/motor-1/electric:name");
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: Error reverting changeset (-19)");
|
|
|
|
unittest(overlay_data_apply("overlay_bad_add_dup_prop", NULL),
|
|
"Adding overlay 'overlay_bad_add_dup_prop' failed\n");
|
|
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: Error reverting changeset (-19)");
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: changeset: apply failed: REMOVE_PROPERTY /testcase-data-2/substation@100/motor-1/electric:name");
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/name");
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/rpm_avail");
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/electric");
|
|
|
|
/* --- overlay_bad_phandle --- */
|
|
|
|
unittest(overlay_data_apply("overlay_bad_phandle", NULL),
|
|
"Adding overlay 'overlay_bad_phandle' failed\n");
|
|
|
|
/* --- overlay_bad_symbol --- */
|
|
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: changeset: apply failed: REMOVE_PROPERTY /testcase-data-2/substation@100/hvac-medium-2:name");
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: Error reverting changeset (-19)");
|
|
|
|
unittest(overlay_data_apply("overlay_bad_symbol", NULL),
|
|
"Adding overlay 'overlay_bad_symbol' failed\n");
|
|
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: Error reverting changeset (-19)");
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: changeset: apply failed: REMOVE_PROPERTY /testcase-data-2/substation@100/hvac-medium-2:name");
|
|
|
|
/* --- overlay_bad_unresolved --- */
|
|
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: resolver: node label 'this_label_does_not_exist' not found in live devicetree symbols table");
|
|
EXPECT_BEGIN(KERN_ERR,
|
|
"OF: resolver: overlay phandle fixup failed: -22");
|
|
|
|
unittest(overlay_data_apply("overlay_bad_unresolved", NULL),
|
|
"Adding overlay 'overlay_bad_unresolved' failed\n");
|
|
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: resolver: overlay phandle fixup failed: -22");
|
|
EXPECT_END(KERN_ERR,
|
|
"OF: resolver: node label 'this_label_does_not_exist' not found in live devicetree symbols table");
|
|
|
|
return;
|
|
|
|
err_unlock:
|
|
mutex_unlock(&of_mutex);
|
|
}
|
|
|
|
static int of_unittest_pci_dev_num;
|
|
static int of_unittest_pci_child_num;
|
|
|
|
/*
|
|
* PCI device tree node test driver
|
|
*/
|
|
static const struct pci_device_id testdrv_pci_ids[] = {
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_REDHAT, 0x5), }, /* PCI_VENDOR_ID_REDHAT */
|
|
{ 0, }
|
|
};
|
|
|
|
static int testdrv_probe(struct pci_dev *pdev, const struct pci_device_id *id)
|
|
{
|
|
struct overlay_info *info;
|
|
struct device_node *dn;
|
|
int ret, ovcs_id;
|
|
u32 size;
|
|
|
|
dn = pdev->dev.of_node;
|
|
if (!dn) {
|
|
dev_err(&pdev->dev, "does not find bus endpoint");
|
|
return -EINVAL;
|
|
}
|
|
|
|
for (info = overlays; info && info->name; info++) {
|
|
if (!strcmp(info->name, "overlay_pci_node"))
|
|
break;
|
|
}
|
|
if (!info || !info->name) {
|
|
dev_err(&pdev->dev, "no overlay data for overlay_pci_node");
|
|
return -ENODEV;
|
|
}
|
|
|
|
size = info->dtbo_end - info->dtbo_begin;
|
|
ret = of_overlay_fdt_apply(info->dtbo_begin, size, &ovcs_id, dn);
|
|
of_node_put(dn);
|
|
if (ret)
|
|
return ret;
|
|
|
|
of_platform_default_populate(dn, NULL, &pdev->dev);
|
|
pci_set_drvdata(pdev, (void *)(uintptr_t)ovcs_id);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void testdrv_remove(struct pci_dev *pdev)
|
|
{
|
|
int ovcs_id = (int)(uintptr_t)pci_get_drvdata(pdev);
|
|
|
|
of_platform_depopulate(&pdev->dev);
|
|
of_overlay_remove(&ovcs_id);
|
|
}
|
|
|
|
static struct pci_driver testdrv_driver = {
|
|
.name = "pci_dt_testdrv",
|
|
.id_table = testdrv_pci_ids,
|
|
.probe = testdrv_probe,
|
|
.remove = testdrv_remove,
|
|
};
|
|
|
|
static int unittest_pci_probe(struct platform_device *pdev)
|
|
{
|
|
struct resource *res;
|
|
struct device *dev;
|
|
u64 exp_addr;
|
|
|
|
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
if (!res)
|
|
return -ENODEV;
|
|
|
|
dev = &pdev->dev;
|
|
while (dev && !dev_is_pci(dev))
|
|
dev = dev->parent;
|
|
if (!dev) {
|
|
pr_err("unable to find parent device\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
exp_addr = pci_resource_start(to_pci_dev(dev), 0) + 0x100;
|
|
unittest(res->start == exp_addr, "Incorrect translated address %llx, expected %llx\n",
|
|
(u64)res->start, exp_addr);
|
|
|
|
of_unittest_pci_child_num++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct of_device_id unittest_pci_of_match[] = {
|
|
{ .compatible = "unittest-pci" },
|
|
{ }
|
|
};
|
|
|
|
static struct platform_driver unittest_pci_driver = {
|
|
.probe = unittest_pci_probe,
|
|
.driver = {
|
|
.name = "unittest-pci",
|
|
.of_match_table = unittest_pci_of_match,
|
|
},
|
|
};
|
|
|
|
static int of_unittest_pci_node_verify(struct pci_dev *pdev, bool add)
|
|
{
|
|
struct device_node *pnp, *np = NULL;
|
|
struct device *child_dev;
|
|
char *path = NULL;
|
|
const __be32 *reg;
|
|
int rc = 0;
|
|
|
|
pnp = pdev->dev.of_node;
|
|
unittest(pnp, "Failed creating PCI dt node\n");
|
|
if (!pnp)
|
|
return -ENODEV;
|
|
|
|
if (add) {
|
|
path = kasprintf(GFP_KERNEL, "%pOF/pci-ep-bus@0/unittest-pci@100", pnp);
|
|
np = of_find_node_by_path(path);
|
|
unittest(np, "Failed to get unittest-pci node under PCI node\n");
|
|
if (!np) {
|
|
rc = -ENODEV;
|
|
goto failed;
|
|
}
|
|
|
|
reg = of_get_property(np, "reg", NULL);
|
|
unittest(reg, "Failed to get reg property\n");
|
|
if (!reg)
|
|
rc = -ENODEV;
|
|
} else {
|
|
path = kasprintf(GFP_KERNEL, "%pOF/pci-ep-bus@0", pnp);
|
|
np = of_find_node_by_path(path);
|
|
unittest(!np, "Child device tree node is not removed\n");
|
|
child_dev = device_find_any_child(&pdev->dev);
|
|
unittest(!child_dev, "Child device is not removed\n");
|
|
}
|
|
|
|
failed:
|
|
kfree(path);
|
|
if (np)
|
|
of_node_put(np);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void __init of_unittest_pci_node(void)
|
|
{
|
|
struct pci_dev *pdev = NULL;
|
|
int rc;
|
|
|
|
if (!IS_ENABLED(CONFIG_PCI_DYNAMIC_OF_NODES))
|
|
return;
|
|
|
|
rc = pci_register_driver(&testdrv_driver);
|
|
unittest(!rc, "Failed to register pci test driver; rc = %d\n", rc);
|
|
if (rc)
|
|
return;
|
|
|
|
rc = platform_driver_register(&unittest_pci_driver);
|
|
if (unittest(!rc, "Failed to register unittest pci driver\n")) {
|
|
pci_unregister_driver(&testdrv_driver);
|
|
return;
|
|
}
|
|
|
|
while ((pdev = pci_get_device(PCI_VENDOR_ID_REDHAT, 0x5, pdev)) != NULL) {
|
|
of_unittest_pci_node_verify(pdev, true);
|
|
of_unittest_pci_dev_num++;
|
|
}
|
|
if (pdev)
|
|
pci_dev_put(pdev);
|
|
|
|
unittest(of_unittest_pci_dev_num,
|
|
"No test PCI device been found. Please run QEMU with '-device pci-testdev'\n");
|
|
unittest(of_unittest_pci_dev_num == of_unittest_pci_child_num,
|
|
"Child device number %d is not expected %d", of_unittest_pci_child_num,
|
|
of_unittest_pci_dev_num);
|
|
|
|
platform_driver_unregister(&unittest_pci_driver);
|
|
pci_unregister_driver(&testdrv_driver);
|
|
|
|
while ((pdev = pci_get_device(PCI_VENDOR_ID_REDHAT, 0x5, pdev)) != NULL)
|
|
of_unittest_pci_node_verify(pdev, false);
|
|
if (pdev)
|
|
pci_dev_put(pdev);
|
|
}
|
|
#else
|
|
|
|
static inline __init void of_unittest_overlay_high_level(void) {}
|
|
static inline __init void of_unittest_pci_node(void) { }
|
|
|
|
#endif
|
|
|
|
static int __init of_unittest(void)
|
|
{
|
|
struct device_node *np;
|
|
int res;
|
|
|
|
pr_info("start of unittest - you will see error messages\n");
|
|
|
|
/* Taint the kernel so we know we've run tests. */
|
|
add_taint(TAINT_TEST, LOCKDEP_STILL_OK);
|
|
|
|
/* adding data for unittest */
|
|
|
|
if (IS_ENABLED(CONFIG_UML))
|
|
unittest_unflatten_overlay_base();
|
|
|
|
res = unittest_data_add();
|
|
if (res)
|
|
return res;
|
|
if (!of_aliases)
|
|
of_aliases = of_find_node_by_path("/aliases");
|
|
|
|
np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a");
|
|
if (!np) {
|
|
pr_info("No testcase data in device tree; not running tests\n");
|
|
return 0;
|
|
}
|
|
of_node_put(np);
|
|
|
|
of_unittest_check_tree_linkage();
|
|
of_unittest_check_phandles();
|
|
of_unittest_find_node_by_name();
|
|
of_unittest_dynamic();
|
|
of_unittest_parse_phandle_with_args();
|
|
of_unittest_parse_phandle_with_args_map();
|
|
of_unittest_printf();
|
|
of_unittest_property_string();
|
|
of_unittest_property_copy();
|
|
of_unittest_changeset();
|
|
of_unittest_parse_interrupts();
|
|
of_unittest_parse_interrupts_extended();
|
|
of_unittest_dma_get_max_cpu_address();
|
|
of_unittest_parse_dma_ranges();
|
|
of_unittest_pci_dma_ranges();
|
|
of_unittest_bus_ranges();
|
|
of_unittest_bus_3cell_ranges();
|
|
of_unittest_reg();
|
|
of_unittest_match_node();
|
|
of_unittest_platform_populate();
|
|
of_unittest_overlay();
|
|
of_unittest_lifecycle();
|
|
of_unittest_pci_node();
|
|
|
|
/* Double check linkage after removing testcase data */
|
|
of_unittest_check_tree_linkage();
|
|
|
|
of_unittest_overlay_high_level();
|
|
|
|
pr_info("end of unittest - %i passed, %i failed\n",
|
|
unittest_results.passed, unittest_results.failed);
|
|
|
|
return 0;
|
|
}
|
|
late_initcall(of_unittest);
|