| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Self tests for device tree subsystem |
| */ |
| |
| #define pr_fmt(fmt) "### dt-test ### " fmt |
| |
| #include <linux/memblock.h> |
| #include <linux/clk.h> |
| #include <linux/dma-direct.h> /* to test phys_to_dma/dma_to_phys */ |
| #include <linux/err.h> |
| #include <linux/errno.h> |
| #include <linux/hashtable.h> |
| #include <linux/libfdt.h> |
| #include <linux/of.h> |
| #include <linux/of_address.h> |
| #include <linux/of_fdt.h> |
| #include <linux/of_irq.h> |
| #include <linux/of_platform.h> |
| #include <linux/list.h> |
| #include <linux/mutex.h> |
| #include <linux/slab.h> |
| #include <linux/device.h> |
| #include <linux/platform_device.h> |
| #include <linux/pci.h> |
| #include <linux/kernel.h> |
| |
| #include <linux/i2c.h> |
| #include <linux/i2c-mux.h> |
| #include <linux/gpio/driver.h> |
| |
| #include <linux/bitops.h> |
| |
| #include "of_private.h" |
| |
| static struct unittest_results { |
| int passed; |
| int failed; |
| } unittest_results; |
| |
| #define unittest(result, fmt, ...) ({ \ |
| bool failed = !(result); \ |
| if (failed) { \ |
| unittest_results.failed++; \ |
| pr_err("FAIL %s():%i " fmt, __func__, __LINE__, ##__VA_ARGS__); \ |
| } else { \ |
| unittest_results.passed++; \ |
| pr_info("pass %s():%i\n", __func__, __LINE__); \ |
| } \ |
| failed; \ |
| }) |
| |
| #ifdef CONFIG_OF_KOBJ |
| #define OF_KREF_READ(NODE) kref_read(&(NODE)->kobj.kref) |
| #else |
| #define OF_KREF_READ(NODE) 1 |
| #endif |
| |
| /* |
| * Expected message may have a message level other than KERN_INFO. |
| * Print the expected message only if the current loglevel will allow |
| * the actual message to print. |
| * |
| * Do not use EXPECT_BEGIN(), EXPECT_END(), EXPECT_NOT_BEGIN(), or |
| * EXPECT_NOT_END() to report messages expected to be reported or not |
| * reported by pr_debug(). |
| */ |
| #define EXPECT_BEGIN(level, fmt, ...) \ |
| printk(level pr_fmt("EXPECT \\ : ") fmt, ##__VA_ARGS__) |
| |
| #define EXPECT_END(level, fmt, ...) \ |
| printk(level pr_fmt("EXPECT / : ") fmt, ##__VA_ARGS__) |
| |
| #define EXPECT_NOT_BEGIN(level, fmt, ...) \ |
| printk(level pr_fmt("EXPECT_NOT \\ : ") fmt, ##__VA_ARGS__) |
| |
| #define EXPECT_NOT_END(level, fmt, ...) \ |
| printk(level pr_fmt("EXPECT_NOT / : ") fmt, ##__VA_ARGS__) |
| |
| static void __init of_unittest_find_node_by_name(void) |
| { |
| struct device_node *np; |
| const char *options, *name; |
| |
| np = of_find_node_by_path("/testcase-data"); |
| name = kasprintf(GFP_KERNEL, "%pOF", np); |
| unittest(np && name && !strcmp("/testcase-data", name), |
| "find /testcase-data failed\n"); |
| of_node_put(np); |
| kfree(name); |
| |
| /* Test if trailing '/' works */ |
| np = of_find_node_by_path("/testcase-data/"); |
| unittest(!np, "trailing '/' on /testcase-data/ should fail\n"); |
| |
| np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a"); |
| name = kasprintf(GFP_KERNEL, "%pOF", np); |
| unittest(np && name && !strcmp("/testcase-data/phandle-tests/consumer-a", name), |
| "find /testcase-data/phandle-tests/consumer-a failed\n"); |
| of_node_put(np); |
| kfree(name); |
| |
| np = of_find_node_by_path("testcase-alias"); |
| name = kasprintf(GFP_KERNEL, "%pOF", np); |
| unittest(np && name && !strcmp("/testcase-data", name), |
| "find testcase-alias failed\n"); |
| of_node_put(np); |
| kfree(name); |
| |
| /* Test if trailing '/' works on aliases */ |
| np = of_find_node_by_path("testcase-alias/"); |
| unittest(!np, "trailing '/' on testcase-alias/ should fail\n"); |
| |
| np = of_find_node_by_path("testcase-alias/phandle-tests/consumer-a"); |
| name = kasprintf(GFP_KERNEL, "%pOF", np); |
| unittest(np && name && !strcmp("/testcase-data/phandle-tests/consumer-a", name), |
| "find testcase-alias/phandle-tests/consumer-a failed\n"); |
| of_node_put(np); |
| kfree(name); |
| |
| np = of_find_node_by_path("/testcase-data/missing-path"); |
| unittest(!np, "non-existent path returned node %pOF\n", np); |
| of_node_put(np); |
| |
| np = of_find_node_by_path("missing-alias"); |
| unittest(!np, "non-existent alias returned node %pOF\n", np); |
| of_node_put(np); |
| |
| np = of_find_node_by_path("testcase-alias/missing-path"); |
| unittest(!np, "non-existent alias with relative path returned node %pOF\n", np); |
| of_node_put(np); |
| |
| np = of_find_node_opts_by_path("/testcase-data:testoption", &options); |
| unittest(np && !strcmp("testoption", options), |
| "option path test failed\n"); |
| of_node_put(np); |
| |
| np = of_find_node_opts_by_path("/testcase-data:test/option", &options); |
| unittest(np && !strcmp("test/option", options), |
| "option path test, subcase #1 failed\n"); |
| of_node_put(np); |
| |
| np = of_find_node_opts_by_path("/testcase-data/testcase-device1:test/option", &options); |
| unittest(np && !strcmp("test/option", options), |
| "option path test, subcase #2 failed\n"); |
| of_node_put(np); |
| |
| np = of_find_node_opts_by_path("/testcase-data:testoption", NULL); |
| unittest(np, "NULL option path test failed\n"); |
| of_node_put(np); |
| |
| np = of_find_node_opts_by_path("testcase-alias:testaliasoption", |
| &options); |
| unittest(np && !strcmp("testaliasoption", options), |
| "option alias path test failed\n"); |
| of_node_put(np); |
| |
| np = of_find_node_opts_by_path("testcase-alias:test/alias/option", |
| &options); |
| unittest(np && !strcmp("test/alias/option", options), |
| "option alias path test, subcase #1 failed\n"); |
| of_node_put(np); |
| |
| np = of_find_node_opts_by_path("testcase-alias:testaliasoption", NULL); |
| unittest(np, "NULL option alias path test failed\n"); |
| of_node_put(np); |
| |
| options = "testoption"; |
| np = of_find_node_opts_by_path("testcase-alias", &options); |
| unittest(np && !options, "option clearing test failed\n"); |
| of_node_put(np); |
| |
| options = "testoption"; |
| np = of_find_node_opts_by_path("/", &options); |
| unittest(np && !options, "option clearing root node test failed\n"); |
| of_node_put(np); |
| } |
| |
| static void __init of_unittest_dynamic(void) |
| { |
| struct device_node *np; |
| struct property *prop; |
| |
| np = of_find_node_by_path("/testcase-data"); |
| if (!np) { |
| pr_err("missing testcase data\n"); |
| return; |
| } |
| |
| /* Array of 4 properties for the purpose of testing */ |
| prop = kcalloc(4, sizeof(*prop), GFP_KERNEL); |
| if (!prop) { |
| unittest(0, "kzalloc() failed\n"); |
| return; |
| } |
| |
| /* Add a new property - should pass*/ |
| prop->name = "new-property"; |
| prop->value = "new-property-data"; |
| prop->length = strlen(prop->value) + 1; |
| unittest(of_add_property(np, prop) == 0, "Adding a new property failed\n"); |
| |
| /* Try to add an existing property - should fail */ |
| prop++; |
| prop->name = "new-property"; |
| prop->value = "new-property-data-should-fail"; |
| prop->length = strlen(prop->value) + 1; |
| unittest(of_add_property(np, prop) != 0, |
| "Adding an existing property should have failed\n"); |
| |
| /* Try to modify an existing property - should pass */ |
| prop->value = "modify-property-data-should-pass"; |
| prop->length = strlen(prop->value) + 1; |
| unittest(of_update_property(np, prop) == 0, |
| "Updating an existing property should have passed\n"); |
| |
| /* Try to modify non-existent property - should pass*/ |
| prop++; |
| prop->name = "modify-property"; |
| prop->value = "modify-missing-property-data-should-pass"; |
| prop->length = strlen(prop->value) + 1; |
| unittest(of_update_property(np, prop) == 0, |
| "Updating a missing property should have passed\n"); |
| |
| /* Remove property - should pass */ |
| unittest(of_remove_property(np, prop) == 0, |
| "Removing a property should have passed\n"); |
| |
| /* Adding very large property - should pass */ |
| prop++; |
| prop->name = "large-property-PAGE_SIZEx8"; |
| prop->length = PAGE_SIZE * 8; |
| prop->value = kzalloc(prop->length, GFP_KERNEL); |
| unittest(prop->value != NULL, "Unable to allocate large buffer\n"); |
| if (prop->value) |
| unittest(of_add_property(np, prop) == 0, |
| "Adding a large property should have passed\n"); |
| } |
| |
| static int __init of_unittest_check_node_linkage(struct device_node *np) |
| { |
| int count = 0, rc; |
| |
| for_each_child_of_node_scoped(np, child) { |
| if (child->parent != np) { |
| pr_err("Child node %pOFn links to wrong parent %pOFn\n", |
| child, np); |
| return -EINVAL; |
| } |
| |
| rc = of_unittest_check_node_linkage(child); |
| if (rc < 0) |
| return rc; |
| count += rc; |
| } |
| |
| return count + 1; |
| } |
| |
| static void __init of_unittest_check_tree_linkage(void) |
| { |
| struct device_node *np; |
| int allnode_count = 0, child_count; |
| |
| if (!of_root) |
| return; |
| |
| for_each_of_allnodes(np) |
| allnode_count++; |
| child_count = of_unittest_check_node_linkage(of_root); |
| |
| unittest(child_count > 0, "Device node data structure is corrupted\n"); |
| unittest(child_count == allnode_count, |
| "allnodes list size (%i) doesn't match sibling lists size (%i)\n", |
| allnode_count, child_count); |
| pr_debug("allnodes list size (%i); sibling lists size (%i)\n", allnode_count, child_count); |
| } |
| |
| static void __init of_unittest_printf_one(struct device_node *np, const char *fmt, |
| const char *expected) |
| { |
| unsigned char *buf; |
| int buf_size; |
| int size, i; |
| |
| buf_size = strlen(expected) + 10; |
| buf = kmalloc(buf_size, GFP_KERNEL); |
| if (!buf) |
| return; |
| |
| /* Baseline; check conversion with a large size limit */ |
| memset(buf, 0xff, buf_size); |
| size = snprintf(buf, buf_size - 2, fmt, np); |
| |
| /* use strcmp() instead of strncmp() here to be absolutely sure strings match */ |
| unittest((strcmp(buf, expected) == 0) && (buf[size+1] == 0xff), |
| "sprintf failed; fmt='%s' expected='%s' rslt='%s'\n", |
| fmt, expected, buf); |
| |
| /* Make sure length limits work */ |
| size++; |
| for (i = 0; i < 2; i++, size--) { |
| /* Clear the buffer, and make sure it works correctly still */ |
| memset(buf, 0xff, buf_size); |
| snprintf(buf, size+1, fmt, np); |
| unittest(strncmp(buf, expected, size) == 0 && (buf[size+1] == 0xff), |
| "snprintf failed; size=%i fmt='%s' expected='%s' rslt='%s'\n", |
| size, fmt, expected, buf); |
| } |
| kfree(buf); |
| } |
| |
| static void __init of_unittest_printf(void) |
| { |
| struct device_node *np; |
| const char *full_name = "/testcase-data/platform-tests/test-device@1/dev@100"; |
| char phandle_str[16] = ""; |
| |
| np = of_find_node_by_path(full_name); |
| if (!np) { |
| unittest(np, "testcase data missing\n"); |
| return; |
| } |
| |
| num_to_str(phandle_str, sizeof(phandle_str), np->phandle, 0); |
| |
| of_unittest_printf_one(np, "%pOF", full_name); |
| of_unittest_printf_one(np, "%pOFf", full_name); |
| of_unittest_printf_one(np, "%pOFn", "dev"); |
| of_unittest_printf_one(np, "%2pOFn", "dev"); |
| of_unittest_printf_one(np, "%5pOFn", " dev"); |
| of_unittest_printf_one(np, "%pOFnc", "dev:test-sub-device"); |
| of_unittest_printf_one(np, "%pOFp", phandle_str); |
| of_unittest_printf_one(np, "%pOFP", "dev@100"); |
| of_unittest_printf_one(np, "ABC %pOFP ABC", "ABC dev@100 ABC"); |
| of_unittest_printf_one(np, "%10pOFP", " dev@100"); |
| of_unittest_printf_one(np, "%-10pOFP", "dev@100 "); |
| of_unittest_printf_one(of_root, "%pOFP", "/"); |
| of_unittest_printf_one(np, "%pOFF", "----"); |
| of_unittest_printf_one(np, "%pOFPF", "dev@100:----"); |
| of_unittest_printf_one(np, "%pOFPFPc", "dev@100:----:dev@100:test-sub-device"); |
| of_unittest_printf_one(np, "%pOFc", "test-sub-device"); |
| of_unittest_printf_one(np, "%pOFC", |
| "\"test-sub-device\",\"test-compat2\",\"test-compat3\""); |
| } |
| |
| struct node_hash { |
| struct hlist_node node; |
| struct device_node *np; |
| }; |
| |
| static DEFINE_HASHTABLE(phandle_ht, 8); |
| static void __init of_unittest_check_phandles(void) |
| { |
| struct device_node *np; |
| struct node_hash *nh; |
| struct hlist_node *tmp; |
| int i, dup_count = 0, phandle_count = 0; |
| |
| for_each_of_allnodes(np) { |
| if (!np->phandle) |
| continue; |
| |
| hash_for_each_possible(phandle_ht, nh, node, np->phandle) { |
| if (nh->np->phandle == np->phandle) { |
| pr_info("Duplicate phandle! %i used by %pOF and %pOF\n", |
| np->phandle, nh->np, np); |
| dup_count++; |
| break; |
| } |
| } |
| |
| nh = kzalloc(sizeof(*nh), GFP_KERNEL); |
| if (!nh) |
| return; |
| |
| nh->np = np; |
| hash_add(phandle_ht, &nh->node, np->phandle); |
| phandle_count++; |
| } |
| unittest(dup_count == 0, "Found %i duplicates in %i phandles\n", |
| dup_count, phandle_count); |
| |
| /* Clean up */ |
| hash_for_each_safe(phandle_ht, i, tmp, nh, node) { |
| hash_del(&nh->node); |
| kfree(nh); |
| } |
| } |
| |
| static void __init of_unittest_parse_phandle_with_args(void) |
| { |
| struct device_node *np; |
| struct of_phandle_args args; |
| int i, rc; |
| |
| np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a"); |
| if (!np) { |
| 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(np, "phandle-list", |
| "#phandle-cells", i, &args); |
| |
| /* Test the values from tests-phandle.dtsi */ |
| switch (i) { |
| case 0: |
| passed &= !rc; |
| passed &= (args.args_count == 1); |
| passed &= (args.args[0] == (i + 1)); |
| break; |
| case 1: |
| passed &= !rc; |
| passed &= (args.args_count == 2); |
| passed &= (args.args[0] == (i + 1)); |
| passed &= (args.args[1] == 0); |
| break; |
| case 2: |
| passed &= (rc == -ENOENT); |
| break; |
| case 3: |
| passed &= !rc; |
| passed &= (args.args_count == 3); |
| passed &= (args.args[0] == (i + 1)); |
| passed &= (args.args[1] == 4); |
| passed &= (args.args[2] == 3); |
| break; |
| case 4: |
| passed &= !rc; |
| passed &= (args.args_count == 2); |
| passed &= (args.args[0] == (i + 1)); |
| passed &= (args.args[1] == 100); |
| break; |
| case 5: |
| passed &= !rc; |
| passed &= (args.args_count == 0); |
| break; |
| case 6: |
| passed &= !rc; |
| passed &= (args.args_count == 1); |
| passed &= (args.args[0] == (i + 1)); |
| break; |
| case 7: |
| passed &= (rc == -ENOENT); |
| break; |
| default: |
| passed = false; |
| } |
| |
| unittest(passed, "index %i - data error on node %pOF rc=%i\n", |
| i, args.np, rc); |
| |
| if (rc == 0) |
| of_node_put(args.np); |
| } |
| |
| /* 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, *p[6] = {}; |
| struct of_phandle_args args; |
| unsigned int prefs[6]; |
| int i, rc; |
| |
| np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-b"); |
| if (!np) { |
| pr_err("missing testcase data\n"); |
| return; |
| } |
| |
| p[0] = of_find_node_by_path("/testcase-data/phandle-tests/provider0"); |
| p[1] = of_find_node_by_path("/testcase-data/phandle-tests/provider1"); |
| p[2] = of_find_node_by_path("/testcase-data/phandle-tests/provider2"); |
| p[3] = of_find_node_by_path("/testcase-data/phandle-tests/provider3"); |
| p[4] = of_find_node_by_path("/testcase-data/phandle-tests/provider4"); |
| p[5] = of_find_node_by_path("/testcase-data/phandle-tests/provider5"); |
| for (i = 0; i < ARRAY_SIZE(p); ++i) { |
| if (!p[i]) { |
| pr_err("missing testcase data\n"); |
| return; |
| } |
| prefs[i] = OF_KREF_READ(p[i]); |
| } |
| |
| rc = of_count_phandle_with_args(np, "phandle-list", "#phandle-cells"); |
| unittest(rc == 8, "of_count_phandle_with_args() returned %i, expected 8\n", rc); |
| |
| for (i = 0; i < 9; 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 == p[1]); |
| passed &= (args.args_count == 1); |
| passed &= (args.args[0] == 1); |
| break; |
| case 1: |
| passed &= !rc; |
| passed &= (args.np == p[3]); |
| 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 == p[0]); |
| passed &= (args.args_count == 0); |
| break; |
| case 4: |
| passed &= !rc; |
| passed &= (args.np == p[1]); |
| passed &= (args.args_count == 1); |
| passed &= (args.args[0] == 3); |
| break; |
| case 5: |
| passed &= !rc; |
| passed &= (args.np == p[0]); |
| passed &= (args.args_count == 0); |
| break; |
| case 6: |
| passed &= !rc; |
| passed &= (args.np == p[2]); |
| passed &= (args.args_count == 2); |
| passed &= (args.args[0] == 15); |
| passed &= (args.args[1] == 0x20); |
| break; |
| case 7: |
| passed &= !rc; |
| passed &= (args.np == p[3]); |
| passed &= (args.args_count == 3); |
| passed &= (args.args[0] == 2); |
| passed &= (args.args[1] == 5); |
| passed &= (args.args[2] == 3); |
| break; |
| case 8: |
| 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); |
| |
| if (rc == 0) |
| of_node_put(args.np); |
| } |
| |
| /* 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); |
| |
| for (i = 0; i < ARRAY_SIZE(p); ++i) { |
| unittest(prefs[i] == OF_KREF_READ(p[i]), |
| "provider%d: expected:%d got:%d\n", |
| i, prefs[i], OF_KREF_READ(p[i])); |
| of_node_put(p[i]); |
| } |
| } |
| |
| 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"); |
| __of_prop_free(new); |
| |
| new = __of_prop_dup(&p2, GFP_KERNEL); |
| unittest(new && propcmp(&p2, new), "non-empty property didn't copy correctly\n"); |
| __of_prop_free(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 __maybe_unused changeset_check_string(struct device_node *np, |
| const char *prop_name, |
| const char *expected_str) |
| { |
| const char *str; |
| int ret; |
| |
| ret = of_property_read_string(np, prop_name, &str); |
| if (unittest(ret == 0, "failed to read %s\n", prop_name)) |
| return; |
| |
| unittest(strcmp(str, expected_str) == 0, |
| "%s value mismatch (read '%s', exp '%s')\n", |
| prop_name, str, expected_str); |
| } |
| |
| static void __init __maybe_unused changeset_check_string_array(struct device_node *np, |
| const char *prop_name, |
| const char * const *expected_array, |
| unsigned int count) |
| { |
| const char *str; |
| unsigned int i; |
| int ret; |
| int cnt; |
| |
| cnt = of_property_count_strings(np, prop_name); |
| if (unittest(cnt >= 0, "failed to get %s count\n", prop_name)) |
| return; |
| |
| if (unittest(cnt == count, |
| "%s count mismatch (read %d, exp %u)\n", |
| prop_name, cnt, count)) |
| return; |
| |
| for (i = 0; i < count; i++) { |
| ret = of_property_read_string_index(np, prop_name, i, &str); |
| if (unittest(ret == 0, "failed to read %s[%d]\n", prop_name, i)) |
| continue; |
| |
| unittest(strcmp(str, expected_array[i]) == 0, |
| "%s[%d] value mismatch (read '%s', exp '%s')\n", |
| prop_name, i, str, expected_array[i]); |
| } |
| } |
| |
| static void __init __maybe_unused changeset_check_u32(struct device_node *np, |
| const char *prop_name, |
| u32 expected_u32) |
| { |
| u32 val32; |
| int ret; |
| |
| ret = of_property_read_u32(np, prop_name, &val32); |
| if (unittest(ret == 0, "failed to read %s\n", prop_name)) |
| return; |
| |
| unittest(val32 == expected_u32, |
| "%s value mismatch (read '%u', exp '%u')\n", |
| prop_name, val32, expected_u32); |
| } |
| |
| static void __init __maybe_unused changeset_check_u32_array(struct device_node *np, |
| const char *prop_name, |
| const u32 *expected_array, |
| unsigned int count) |
| { |
| unsigned int i; |
| u32 val32; |
| int ret; |
| int cnt; |
| |
| cnt = of_property_count_u32_elems(np, prop_name); |
| if (unittest(cnt >= 0, "failed to get %s count\n", prop_name)) |
| return; |
| |
| if (unittest(cnt == count, |
| "%s count mismatch (read %d, exp %u)\n", |
| prop_name, cnt, count)) |
| return; |
| |
| for (i = 0; i < count; i++) { |
| ret = of_property_read_u32_index(np, prop_name, i, &val32); |
| if (unittest(ret == 0, "failed to read %s[%d]\n", prop_name, i)) |
| continue; |
| |
| unittest(val32 == expected_array[i], |
| "%s[%d] value mismatch (read '%u', exp '%u')\n", |
| prop_name, i, val32, expected_array[i]); |
| } |
| } |
| |
| static void __init __maybe_unused changeset_check_bool(struct device_node *np, |
| const char *prop_name) |
| { |
| unittest(of_property_read_bool(np, prop_name), |
| "%s value mismatch (read 'false', exp 'true')\n", prop_name); |
| } |
| |
| static void __init of_unittest_changeset_prop(void) |
| { |
| #ifdef CONFIG_OF_DYNAMIC |
| static const char * const str_array[] = { "abc", "defg", "hij" }; |
| static const u32 u32_array[] = { 123, 4567, 89, 10, 11 }; |
| struct device_node *nchangeset, *np; |
| struct of_changeset chgset; |
| int ret; |
| |
| nchangeset = of_find_node_by_path("/testcase-data/changeset"); |
| if (!nchangeset) { |
| pr_err("missing testcase data\n"); |
| return; |
| } |
| |
| of_changeset_init(&chgset); |
| |
| np = of_changeset_create_node(&chgset, nchangeset, "test-prop"); |
| if (unittest(np, "failed to create test-prop node\n")) |
| goto end_changeset_destroy; |
| |
| ret = of_changeset_add_prop_string(&chgset, np, "prop-string", "abcde"); |
| unittest(ret == 0, "failed to add prop-string\n"); |
| |
| ret = of_changeset_add_prop_string_array(&chgset, np, "prop-string-array", |
| str_array, ARRAY_SIZE(str_array)); |
| unittest(ret == 0, "failed to add prop-string-array\n"); |
| |
| ret = of_changeset_add_prop_u32(&chgset, np, "prop-u32", 1234); |
| unittest(ret == 0, "failed to add prop-u32\n"); |
| |
| ret = of_changeset_add_prop_u32_array(&chgset, np, "prop-u32-array", |
| u32_array, ARRAY_SIZE(u32_array)); |
| unittest(ret == 0, "failed to add prop-u32-array\n"); |
| |
| ret = of_changeset_add_prop_bool(&chgset, np, "prop-bool"); |
| unittest(ret == 0, "failed to add prop-bool\n"); |
| |
| of_node_put(np); |
| |
| ret = of_changeset_apply(&chgset); |
| if (unittest(ret == 0, "failed to apply changeset\n")) |
| goto end_changeset_destroy; |
| |
| np = of_find_node_by_path("/testcase-data/changeset/test-prop"); |
| if (unittest(np, "failed to find test-prop node\n")) |
| goto end_revert_changeset; |
| |
| changeset_check_string(np, "prop-string", "abcde"); |
| changeset_check_string_array(np, "prop-string-array", str_array, ARRAY_SIZE(str_array)); |
| changeset_check_u32(np, "prop-u32", 1234); |
| changeset_check_u32_array(np, "prop-u32-array", u32_array, ARRAY_SIZE(u32_array)); |
| changeset_check_bool(np, "prop-bool"); |
| |
| of_node_put(np); |
| |
| end_revert_changeset: |
| ret = of_changeset_revert(&chgset); |
| unittest(ret == 0, "failed to revert changeset\n"); |
| |
| end_changeset_destroy: |
| of_changeset_destroy(&chgset); |
| of_node_put(nchangeset); |
| #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); |
| } |
| |
| struct of_unittest_expected_res { |
| int index; |
| struct resource res; |
| }; |
| |
| static void __init of_unittest_check_addr(const char *node_path, |
| const struct of_unittest_expected_res *tab_exp, |
| unsigned int tab_exp_count) |
| { |
| const struct of_unittest_expected_res *expected; |
| struct device_node *np; |
| struct resource res; |
| unsigned int count; |
| int ret; |
| |
| if (!IS_ENABLED(CONFIG_OF_ADDRESS)) |
| return; |
| |
| np = of_find_node_by_path(node_path); |
| if (!np) { |
| pr_err("missing testcase data (%s)\n", node_path); |
| return; |
| } |
| |
| expected = tab_exp; |
| count = tab_exp_count; |
| while (count--) { |
| ret = of_address_to_resource(np, expected->index, &res); |
| unittest(!ret, "of_address_to_resource(%pOF, %d) returned error %d\n", |
| np, expected->index, ret); |
| unittest(resource_type(&res) == resource_type(&expected->res) && |
| res.start == expected->res.start && |
| resource_size(&res) == resource_size(&expected->res), |
| "of_address_to_resource(%pOF, %d) wrong resource %pR, expected %pR\n", |
| np, expected->index, &res, &expected->res); |
| expected++; |
| } |
| |
| of_node_put(np); |
| } |
| |
| static const struct of_unittest_expected_res of_unittest_reg_2cell_expected_res[] = { |
| {.index = 0, .res = DEFINE_RES_MEM(0xa0a01000, 0x100) }, |
| {.index = 1, .res = DEFINE_RES_MEM(0xa0a02000, 0x100) }, |
| {.index = 2, .res = DEFINE_RES_MEM(0xc0c01000, 0x100) }, |
| {.index = 3, .res = DEFINE_RES_MEM(0xd0d01000, 0x100) }, |
| }; |
| |
| static const struct of_unittest_expected_res of_unittest_reg_3cell_expected_res[] = { |
| {.index = 0, .res = DEFINE_RES_MEM(0xa0a01000, 0x100) }, |
| {.index = 1, .res = DEFINE_RES_MEM(0xa0b02000, 0x100) }, |
| {.index = 2, .res = DEFINE_RES_MEM(0xc0c01000, 0x100) }, |
| {.index = 3, .res = DEFINE_RES_MEM(0xc0c09000, 0x100) }, |
| {.index = 4, .res = DEFINE_RES_MEM(0xd0d01000, 0x100) }, |
| }; |
| |
| static const struct of_unittest_expected_res of_unittest_reg_pci_expected_res[] = { |
| {.index = 0, .res = DEFINE_RES_MEM(0xe8001000, 0x1000) }, |
| {.index = 1, .res = DEFINE_RES_MEM(0xea002000, 0x2000) }, |
| }; |
| |
| static void __init of_unittest_translate_addr(void) |
| { |
| of_unittest_check_addr("/testcase-data/address-tests2/bus-2cell@10000000/device@100000", |
| of_unittest_reg_2cell_expected_res, |
| ARRAY_SIZE(of_unittest_reg_2cell_expected_res)); |
| |
| of_unittest_check_addr("/testcase-data/address-tests2/bus-3cell@20000000/local-bus@100000/device@f1001000", |
| of_unittest_reg_3cell_expected_res, |
| ARRAY_SIZE(of_unittest_reg_3cell_expected_res)); |
| |
| of_unittest_check_addr("/testcase-data/address-tests2/pcie@d1070000/pci@0,0/dev@0,0/local-bus@0/dev@e0000000", |
| of_unittest_reg_pci_expected_res, |
| ARRAY_SIZE(of_unittest_reg_pci_expected_res)); |
| } |
| |
| 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; |
| } |
| |
| /* attach the sub-tree to live tree */ |
| if (!of_root) { |
| pr_warn("%s: no live tree to attach sub-tree\n", __func__); |
| kfree(unittest_data); |
| return -ENODEV; |
| } |
| |
| EXPECT_BEGIN(KERN_INFO, |
| "Duplicate name in testcase-data, renamed to \"duplicate-name#1\""); |
| |
| 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 |