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path: root/drivers/of/unittest.c
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Diffstat (limited to 'drivers/of/unittest.c')
-rw-r--r--drivers/of/unittest.c460
1 files changed, 369 insertions, 91 deletions
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index b545fcb22536..ad2b7879cc67 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -22,6 +22,7 @@
#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>
@@ -77,7 +78,7 @@ static void __init of_unittest_find_node_by_name(void)
np = of_find_node_by_path("/testcase-data");
name = kasprintf(GFP_KERNEL, "%pOF", np);
- unittest(np && !strcmp("/testcase-data", name),
+ unittest(np && name && !strcmp("/testcase-data", name),
"find /testcase-data failed\n");
of_node_put(np);
kfree(name);
@@ -88,14 +89,14 @@ static void __init of_unittest_find_node_by_name(void)
np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a");
name = kasprintf(GFP_KERNEL, "%pOF", np);
- unittest(np && !strcmp("/testcase-data/phandle-tests/consumer-a", name),
+ 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 && !strcmp("/testcase-data", name),
+ unittest(np && name && !strcmp("/testcase-data", name),
"find testcase-alias failed\n");
of_node_put(np);
kfree(name);
@@ -106,7 +107,7 @@ static void __init of_unittest_find_node_by_name(void)
np = of_find_node_by_path("testcase-alias/phandle-tests/consumer-a");
name = kasprintf(GFP_KERNEL, "%pOF", np);
- unittest(np && !strcmp("/testcase-data/phandle-tests/consumer-a", name),
+ 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);
@@ -796,14 +797,18 @@ static void __init of_unittest_property_copy(void)
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, *nchangeset, *nremove, *parent, *np;
+ 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");
@@ -857,6 +862,17 @@ static void __init of_unittest_changeset(void)
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");
@@ -866,14 +882,29 @@ static void __init of_unittest_changeset(void)
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
}
@@ -1533,6 +1564,8 @@ static void attach_node_and_children(struct device_node *np)
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__")) {
@@ -1694,7 +1727,7 @@ static struct platform_driver unittest_driver = {
.remove_new = unittest_remove,
.driver = {
.name = "unittest",
- .of_match_table = of_match_ptr(unittest_match),
+ .of_match_table = unittest_match,
},
};
@@ -1795,7 +1828,7 @@ static struct platform_driver unittest_gpio_driver = {
.remove_new = unittest_gpio_remove,
.driver = {
.name = "unittest-gpio",
- .of_match_table = of_match_ptr(unittest_gpio_id),
+ .of_match_table = unittest_gpio_id,
},
};
@@ -2101,14 +2134,13 @@ static int __init of_unittest_apply_overlay(int overlay_nr, int *ovcs_id)
return 0;
}
-/* apply an overlay while checking before and after states */
-static int __init of_unittest_apply_overlay_check(int overlay_nr,
+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 not be in before state */
+ /* 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),
@@ -2117,6 +2149,7 @@ static int __init of_unittest_apply_overlay_check(int overlay_nr,
return -EINVAL;
}
+ /* apply the overlay */
ovcs_id = 0;
ret = of_unittest_apply_overlay(overlay_nr, &ovcs_id);
if (ret != 0) {
@@ -2124,15 +2157,28 @@ static int __init of_unittest_apply_overlay_check(int overlay_nr,
return ret;
}
- /* unittest device must be to set to after state */
+ /* unittest device must be in after state */
if (of_unittest_device_exists(unittest_nr, ovtype) != after) {
- unittest(0, "%s failed to create @\"%s\" %s\n",
+ 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;
}
@@ -2143,32 +2189,12 @@ static int __init of_unittest_apply_revert_overlay_check(int overlay_nr,
{
int ret, ovcs_id, save_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 failed to create @\"%s\" %s\n",
- overlay_name_from_nr(overlay_nr),
- unittest_path(unittest_nr, ovtype),
- !after ? "enabled" : "disabled");
- return -EINVAL;
- }
+ 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) {
@@ -2180,7 +2206,7 @@ static int __init of_unittest_apply_revert_overlay_check(int overlay_nr,
of_unittest_untrack_overlay(save_ovcs_id);
/* unittest device must be again in before state */
- if (of_unittest_device_exists(unittest_nr, PDEV_OVERLAY) != before) {
+ 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),
@@ -2622,7 +2648,7 @@ static struct platform_driver unittest_i2c_bus_driver = {
.remove_new = unittest_i2c_bus_remove,
.driver = {
.name = "unittest-i2c-bus",
- .of_match_table = of_match_ptr(unittest_i2c_bus_match),
+ .of_match_table = unittest_i2c_bus_match,
},
};
@@ -2971,12 +2997,6 @@ static void __init of_unittest_overlay_notify(void)
unittest(ovcs_id, "ovcs_id not created for overlay_17\n");
- if (ovcs_id) {
- ret = of_overlay_remove(&ovcs_id);
- unittest(!ret,
- "overlay_17 of_overlay_remove(), ret = %d\n", ret);
- }
-
/* --- overlay 18 --- */
unittest(overlay_data_apply("overlay_18", &ovcs_id),
@@ -3046,6 +3066,7 @@ static void __init of_unittest_overlay_notify(void)
static void __init of_unittest_overlay(void)
{
struct device_node *bus_np = NULL;
+ unsigned int i;
if (platform_driver_register(&unittest_driver)) {
unittest(0, "could not register unittest driver\n");
@@ -3083,7 +3104,8 @@ static void __init of_unittest_overlay(void)
of_unittest_overlay_2();
of_unittest_overlay_3();
of_unittest_overlay_4();
- of_unittest_overlay_5();
+ for (i = 0; i < 3; i++)
+ of_unittest_overlay_5();
of_unittest_overlay_6();
of_unittest_overlay_8();
@@ -3264,17 +3286,19 @@ out_skip_tests:
extern uint8_t __dtbo_##overlay_name##_begin[]; \
extern uint8_t __dtbo_##overlay_name##_end[]
-#define OVERLAY_INFO(overlay_name, expected) \
-{ .dtbo_begin = __dtbo_##overlay_name##_begin, \
- .dtbo_end = __dtbo_##overlay_name##_end, \
- .expected_result = expected, \
- .name = #overlay_name, \
+#define OVERLAY_INFO(overlay_name, expected, expected_remove) \
+{ .dtbo_begin = __dtbo_##overlay_name##_begin, \
+ .dtbo_end = __dtbo_##overlay_name##_end, \
+ .expected_result = expected, \
+ .expected_result_remove = expected_remove, \
+ .name = #overlay_name, \
}
struct overlay_info {
uint8_t *dtbo_begin;
uint8_t *dtbo_end;
int expected_result;
+ int expected_result_remove; /* if apply failed */
int ovcs_id;
char *name;
};
@@ -3307,47 +3331,51 @@ OVERLAY_INFO_EXTERN(overlay_gpio_02b);
OVERLAY_INFO_EXTERN(overlay_gpio_03);
OVERLAY_INFO_EXTERN(overlay_gpio_04a);
OVERLAY_INFO_EXTERN(overlay_gpio_04b);
+OVERLAY_INFO_EXTERN(overlay_pci_node);
OVERLAY_INFO_EXTERN(overlay_bad_add_dup_node);
OVERLAY_INFO_EXTERN(overlay_bad_add_dup_prop);
OVERLAY_INFO_EXTERN(overlay_bad_phandle);
OVERLAY_INFO_EXTERN(overlay_bad_symbol);
+OVERLAY_INFO_EXTERN(overlay_bad_unresolved);
/* entries found by name */
static struct overlay_info overlays[] = {
- OVERLAY_INFO(overlay_base, -9999),
- OVERLAY_INFO(overlay, 0),
- OVERLAY_INFO(overlay_0, 0),
- OVERLAY_INFO(overlay_1, 0),
- OVERLAY_INFO(overlay_2, 0),
- OVERLAY_INFO(overlay_3, 0),
- OVERLAY_INFO(overlay_4, 0),
- OVERLAY_INFO(overlay_5, 0),
- OVERLAY_INFO(overlay_6, 0),
- OVERLAY_INFO(overlay_7, 0),
- OVERLAY_INFO(overlay_8, 0),
- OVERLAY_INFO(overlay_9, 0),
- OVERLAY_INFO(overlay_10, 0),
- OVERLAY_INFO(overlay_11, 0),
- OVERLAY_INFO(overlay_12, 0),
- OVERLAY_INFO(overlay_13, 0),
- OVERLAY_INFO(overlay_15, 0),
- OVERLAY_INFO(overlay_16, -EBUSY),
- OVERLAY_INFO(overlay_17, -EEXIST),
- OVERLAY_INFO(overlay_18, 0),
- OVERLAY_INFO(overlay_19, 0),
- OVERLAY_INFO(overlay_20, 0),
- OVERLAY_INFO(overlay_gpio_01, 0),
- OVERLAY_INFO(overlay_gpio_02a, 0),
- OVERLAY_INFO(overlay_gpio_02b, 0),
- OVERLAY_INFO(overlay_gpio_03, 0),
- OVERLAY_INFO(overlay_gpio_04a, 0),
- OVERLAY_INFO(overlay_gpio_04b, 0),
- OVERLAY_INFO(overlay_bad_add_dup_node, -EINVAL),
- OVERLAY_INFO(overlay_bad_add_dup_prop, -EINVAL),
- OVERLAY_INFO(overlay_bad_phandle, -EINVAL),
- OVERLAY_INFO(overlay_bad_symbol, -EINVAL),
+ OVERLAY_INFO(overlay_base, -9999, 0),
+ OVERLAY_INFO(overlay, 0, 0),
+ OVERLAY_INFO(overlay_0, 0, 0),
+ OVERLAY_INFO(overlay_1, 0, 0),
+ OVERLAY_INFO(overlay_2, 0, 0),
+ OVERLAY_INFO(overlay_3, 0, 0),
+ OVERLAY_INFO(overlay_4, 0, 0),
+ OVERLAY_INFO(overlay_5, 0, 0),
+ OVERLAY_INFO(overlay_6, 0, 0),
+ OVERLAY_INFO(overlay_7, 0, 0),
+ OVERLAY_INFO(overlay_8, 0, 0),
+ OVERLAY_INFO(overlay_9, 0, 0),
+ OVERLAY_INFO(overlay_10, 0, 0),
+ OVERLAY_INFO(overlay_11, 0, 0),
+ OVERLAY_INFO(overlay_12, 0, 0),
+ OVERLAY_INFO(overlay_13, 0, 0),
+ OVERLAY_INFO(overlay_15, 0, 0),
+ OVERLAY_INFO(overlay_16, -EBUSY, 0),
+ OVERLAY_INFO(overlay_17, -EEXIST, 0),
+ OVERLAY_INFO(overlay_18, 0, 0),
+ OVERLAY_INFO(overlay_19, 0, 0),
+ OVERLAY_INFO(overlay_20, 0, 0),
+ OVERLAY_INFO(overlay_gpio_01, 0, 0),
+ OVERLAY_INFO(overlay_gpio_02a, 0, 0),
+ OVERLAY_INFO(overlay_gpio_02b, 0, 0),
+ OVERLAY_INFO(overlay_gpio_03, 0, 0),
+ OVERLAY_INFO(overlay_gpio_04a, 0, 0),
+ OVERLAY_INFO(overlay_gpio_04b, 0, 0),
+ OVERLAY_INFO(overlay_pci_node, 0, 0),
+ OVERLAY_INFO(overlay_bad_add_dup_node, -EINVAL, -ENODEV),
+ OVERLAY_INFO(overlay_bad_add_dup_prop, -EINVAL, -ENODEV),
+ OVERLAY_INFO(overlay_bad_phandle, -EINVAL, 0),
+ OVERLAY_INFO(overlay_bad_symbol, -EINVAL, -ENODEV),
+ OVERLAY_INFO(overlay_bad_unresolved, -EINVAL, 0),
/* end marker */
- {.dtbo_begin = NULL, .dtbo_end = NULL, .expected_result = 0, .name = NULL}
+ { }
};
static struct device_node *overlay_base_root;
@@ -3442,8 +3470,9 @@ void __init unittest_unflatten_overlay_base(void)
static int __init overlay_data_apply(const char *overlay_name, int *ovcs_id)
{
struct overlay_info *info;
+ int passed = 1;
int found = 0;
- int ret;
+ int ret, ret2;
u32 size;
for (info = overlays; info && info->name; info++) {
@@ -3461,7 +3490,8 @@ static int __init overlay_data_apply(const char *overlay_name, int *ovcs_id)
if (!size)
pr_err("no overlay data for %s\n", overlay_name);
- ret = of_overlay_fdt_apply(info->dtbo_begin, size, &info->ovcs_id);
+ ret = of_overlay_fdt_apply(info->dtbo_begin, size, &info->ovcs_id,
+ NULL);
if (ovcs_id)
*ovcs_id = info->ovcs_id;
if (ret < 0)
@@ -3470,11 +3500,24 @@ static int __init overlay_data_apply(const char *overlay_name, int *ovcs_id)
pr_debug("%s applied\n", overlay_name);
out:
- if (ret != info->expected_result)
+ if (ret != info->expected_result) {
pr_err("of_overlay_fdt_apply() expected %d, ret=%d, %s\n",
info->expected_result, ret, overlay_name);
+ passed = 0;
+ }
- return (ret == info->expected_result);
+ if (ret < 0) {
+ /* changeset may be partially applied */
+ ret2 = of_overlay_remove(&info->ovcs_id);
+ if (ret2 != info->expected_result_remove) {
+ pr_err("of_overlay_remove() expected %d, ret=%d, %s\n",
+ info->expected_result_remove, ret2,
+ overlay_name);
+ passed = 0;
+ }
+ }
+
+ return passed;
}
/*
@@ -3613,6 +3656,8 @@ static __init void of_unittest_overlay_high_level(void)
/* now do the normal overlay usage test */
+ /* --- overlay --- */
+
EXPECT_BEGIN(KERN_ERR,
"OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/status");
EXPECT_BEGIN(KERN_ERR,
@@ -3663,51 +3708,283 @@ static __init void of_unittest_overlay_high_level(void)
unittest(ret, "Adding overlay 'overlay' failed\n");
+ /* --- overlay_bad_add_dup_node --- */
+
EXPECT_BEGIN(KERN_ERR,
"OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/controller");
EXPECT_BEGIN(KERN_ERR,
"OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/controller/name");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: changeset: apply failed: REMOVE_PROPERTY /testcase-data-2/substation@100/motor-1/controller:name");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: Error reverting changeset (-19)");
unittest(overlay_data_apply("overlay_bad_add_dup_node", NULL),
"Adding overlay 'overlay_bad_add_dup_node' failed\n");
EXPECT_END(KERN_ERR,
+ "OF: Error reverting changeset (-19)");
+ EXPECT_END(KERN_ERR,
+ "OF: changeset: apply failed: REMOVE_PROPERTY /testcase-data-2/substation@100/motor-1/controller:name");
+ EXPECT_END(KERN_ERR,
"OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/controller/name");
EXPECT_END(KERN_ERR,
"OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/controller");
+ /* --- overlay_bad_add_dup_prop --- */
+
EXPECT_BEGIN(KERN_ERR,
"OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/electric");
EXPECT_BEGIN(KERN_ERR,
"OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/rpm_avail");
EXPECT_BEGIN(KERN_ERR,
"OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/name");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: changeset: apply failed: REMOVE_PROPERTY /testcase-data-2/substation@100/motor-1/electric:name");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: Error reverting changeset (-19)");
unittest(overlay_data_apply("overlay_bad_add_dup_prop", NULL),
"Adding overlay 'overlay_bad_add_dup_prop' failed\n");
EXPECT_END(KERN_ERR,
- "OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/name");
+ "OF: Error reverting changeset (-19)");
EXPECT_END(KERN_ERR,
- "OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/rpm_avail");
+ "OF: changeset: apply failed: REMOVE_PROPERTY /testcase-data-2/substation@100/motor-1/electric:name");
EXPECT_END(KERN_ERR,
- "OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/electric");
+ "OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/name");
+ EXPECT_END(KERN_ERR,
+ "OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/electric/rpm_avail");
+ EXPECT_END(KERN_ERR,
+ "OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/electric");
+
+ /* --- overlay_bad_phandle --- */
unittest(overlay_data_apply("overlay_bad_phandle", NULL),
"Adding overlay 'overlay_bad_phandle' failed\n");
+ /* --- overlay_bad_symbol --- */
+
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: changeset: apply failed: REMOVE_PROPERTY /testcase-data-2/substation@100/hvac-medium-2:name");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: Error reverting changeset (-19)");
+
unittest(overlay_data_apply("overlay_bad_symbol", NULL),
"Adding overlay 'overlay_bad_symbol' failed\n");
+ EXPECT_END(KERN_ERR,
+ "OF: Error reverting changeset (-19)");
+ EXPECT_END(KERN_ERR,
+ "OF: changeset: apply failed: REMOVE_PROPERTY /testcase-data-2/substation@100/hvac-medium-2:name");
+
+ /* --- overlay_bad_unresolved --- */
+
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: resolver: node label 'this_label_does_not_exist' not found in live devicetree symbols table");
+ EXPECT_BEGIN(KERN_ERR,
+ "OF: resolver: overlay phandle fixup failed: -22");
+
+ unittest(overlay_data_apply("overlay_bad_unresolved", NULL),
+ "Adding overlay 'overlay_bad_unresolved' failed\n");
+
+ EXPECT_END(KERN_ERR,
+ "OF: resolver: overlay phandle fixup failed: -22");
+ EXPECT_END(KERN_ERR,
+ "OF: resolver: node label 'this_label_does_not_exist' not found in live devicetree symbols table");
+
return;
err_unlock:
mutex_unlock(&of_mutex);
}
+static int of_unittest_pci_dev_num;
+static int of_unittest_pci_child_num;
+
+/*
+ * PCI device tree node test driver
+ */
+static const struct pci_device_id testdrv_pci_ids[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_REDHAT, 0x5), }, /* PCI_VENDOR_ID_REDHAT */
+ { 0, }
+};
+
+static int testdrv_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ struct overlay_info *info;
+ struct device_node *dn;
+ int ret, ovcs_id;
+ u32 size;
+
+ dn = pdev->dev.of_node;
+ if (!dn) {
+ dev_err(&pdev->dev, "does not find bus endpoint");
+ return -EINVAL;
+ }
+
+ for (info = overlays; info && info->name; info++) {
+ if (!strcmp(info->name, "overlay_pci_node"))
+ break;
+ }
+ if (!info || !info->name) {
+ dev_err(&pdev->dev, "no overlay data for overlay_pci_node");
+ return -ENODEV;
+ }
+
+ size = info->dtbo_end - info->dtbo_begin;
+ ret = of_overlay_fdt_apply(info->dtbo_begin, size, &ovcs_id, dn);
+ of_node_put(dn);
+ if (ret)
+ return ret;
+
+ of_platform_default_populate(dn, NULL, &pdev->dev);
+ pci_set_drvdata(pdev, (void *)(uintptr_t)ovcs_id);
+
+ return 0;
+}
+
+static void testdrv_remove(struct pci_dev *pdev)
+{
+ int ovcs_id = (int)(uintptr_t)pci_get_drvdata(pdev);
+
+ of_platform_depopulate(&pdev->dev);
+ of_overlay_remove(&ovcs_id);
+}
+
+static struct pci_driver testdrv_driver = {
+ .name = "pci_dt_testdrv",
+ .id_table = testdrv_pci_ids,
+ .probe = testdrv_probe,
+ .remove = testdrv_remove,
+};
+
+static int unittest_pci_probe(struct platform_device *pdev)
+{
+ struct resource *res;
+ struct device *dev;
+ u64 exp_addr;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENODEV;
+
+ dev = &pdev->dev;
+ while (dev && !dev_is_pci(dev))
+ dev = dev->parent;
+ if (!dev) {
+ pr_err("unable to find parent device\n");
+ return -ENODEV;
+ }
+
+ exp_addr = pci_resource_start(to_pci_dev(dev), 0) + 0x100;
+ unittest(res->start == exp_addr, "Incorrect translated address %llx, expected %llx\n",
+ (u64)res->start, exp_addr);
+
+ of_unittest_pci_child_num++;
+
+ return 0;
+}
+
+static const struct of_device_id unittest_pci_of_match[] = {
+ { .compatible = "unittest-pci" },
+ { }
+};
+
+static struct platform_driver unittest_pci_driver = {
+ .probe = unittest_pci_probe,
+ .driver = {
+ .name = "unittest-pci",
+ .of_match_table = unittest_pci_of_match,
+ },
+};
+
+static int of_unittest_pci_node_verify(struct pci_dev *pdev, bool add)
+{
+ struct device_node *pnp, *np = NULL;
+ struct device *child_dev;
+ char *path = NULL;
+ const __be32 *reg;
+ int rc = 0;
+
+ pnp = pdev->dev.of_node;
+ unittest(pnp, "Failed creating PCI dt node\n");
+ if (!pnp)
+ return -ENODEV;
+
+ if (add) {
+ path = kasprintf(GFP_KERNEL, "%pOF/pci-ep-bus@0/unittest-pci@100", pnp);
+ np = of_find_node_by_path(path);
+ unittest(np, "Failed to get unittest-pci node under PCI node\n");
+ if (!np) {
+ rc = -ENODEV;
+ goto failed;
+ }
+
+ reg = of_get_property(np, "reg", NULL);
+ unittest(reg, "Failed to get reg property\n");
+ if (!reg)
+ rc = -ENODEV;
+ } else {
+ path = kasprintf(GFP_KERNEL, "%pOF/pci-ep-bus@0", pnp);
+ np = of_find_node_by_path(path);
+ unittest(!np, "Child device tree node is not removed\n");
+ child_dev = device_find_any_child(&pdev->dev);
+ unittest(!child_dev, "Child device is not removed\n");
+ }
+
+failed:
+ kfree(path);
+ if (np)
+ of_node_put(np);
+
+ return rc;
+}
+
+static void __init of_unittest_pci_node(void)
+{
+ struct pci_dev *pdev = NULL;
+ int rc;
+
+ if (!IS_ENABLED(CONFIG_PCI_DYNAMIC_OF_NODES))
+ return;
+
+ rc = pci_register_driver(&testdrv_driver);
+ unittest(!rc, "Failed to register pci test driver; rc = %d\n", rc);
+ if (rc)
+ return;
+
+ rc = platform_driver_register(&unittest_pci_driver);
+ if (unittest(!rc, "Failed to register unittest pci driver\n")) {
+ pci_unregister_driver(&testdrv_driver);
+ return;
+ }
+
+ while ((pdev = pci_get_device(PCI_VENDOR_ID_REDHAT, 0x5, pdev)) != NULL) {
+ of_unittest_pci_node_verify(pdev, true);
+ of_unittest_pci_dev_num++;
+ }
+ if (pdev)
+ pci_dev_put(pdev);
+
+ unittest(of_unittest_pci_dev_num,
+ "No test PCI device been found. Please run QEMU with '-device pci-testdev'\n");
+ unittest(of_unittest_pci_dev_num == of_unittest_pci_child_num,
+ "Child device number %d is not expected %d", of_unittest_pci_child_num,
+ of_unittest_pci_dev_num);
+
+ platform_driver_unregister(&unittest_pci_driver);
+ pci_unregister_driver(&testdrv_driver);
+
+ while ((pdev = pci_get_device(PCI_VENDOR_ID_REDHAT, 0x5, pdev)) != NULL)
+ of_unittest_pci_node_verify(pdev, false);
+ if (pdev)
+ pci_dev_put(pdev);
+}
#else
static inline __init void of_unittest_overlay_high_level(void) {}
+static inline __init void of_unittest_pci_node(void) { }
#endif
@@ -3761,6 +4038,7 @@ static int __init of_unittest(void)
of_unittest_platform_populate();
of_unittest_overlay();
of_unittest_lifecycle();
+ of_unittest_pci_node();
/* Double check linkage after removing testcase data */
of_unittest_check_tree_linkage();
generated by cgit (git 2.34.1) at 2024-06-15 14:45:51 +0000