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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.c300
1 files changed, 148 insertions, 152 deletions
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 8e23b51eead1..1a984586ef5c 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -45,6 +45,8 @@ static struct unittest_results {
failed; \
})
+static int __init overlay_data_apply(const char *overlay_name, int *overlay_id);
+
static void __init of_unittest_find_node_by_name(void)
{
struct device_node *np;
@@ -1116,8 +1118,7 @@ static int __init unittest_data_add(void)
}
/*
- * This lock normally encloses of_overlay_apply() as well as
- * of_resolve_phandles().
+ * This lock normally encloses of_resolve_phandles()
*/
of_overlay_mutex_lock();
@@ -1310,12 +1311,12 @@ static int of_unittest_device_exists(int unittest_nr, enum overlay_type ovtype)
return 0;
}
-static const char *overlay_path(int nr)
+static const char *overlay_name_from_nr(int nr)
{
static char buf[256];
snprintf(buf, sizeof(buf) - 1,
- "/testcase-data/overlay%d", nr);
+ "overlay_%d", nr);
buf[sizeof(buf) - 1] = '\0';
return buf;
@@ -1382,25 +1383,19 @@ static void of_unittest_destroy_tracked_overlays(void)
} while (defers > 0);
}
-static int of_unittest_apply_overlay(int overlay_nr, int unittest_nr,
+static int __init of_unittest_apply_overlay(int overlay_nr, int unittest_nr,
int *overlay_id)
{
struct device_node *np = NULL;
+ const char *overlay_name;
int ret;
- np = of_find_node_by_path(overlay_path(overlay_nr));
- if (np == NULL) {
- unittest(0, "could not find overlay node @\"%s\"\n",
- overlay_path(overlay_nr));
- ret = -EINVAL;
- goto out;
- }
+ overlay_name = overlay_name_from_nr(overlay_nr);
- *overlay_id = 0;
- ret = of_overlay_apply(np, overlay_id);
- if (ret < 0) {
- unittest(0, "could not create overlay from \"%s\"\n",
- overlay_path(overlay_nr));
+ ret = overlay_data_apply(overlay_name, overlay_id);
+ if (!ret) {
+ unittest(0, "could not apply overlay \"%s\"\n",
+ overlay_name);
goto out;
}
of_unittest_track_overlay(*overlay_id);
@@ -1414,15 +1409,16 @@ out:
}
/* apply an overlay while checking before and after states */
-static int of_unittest_apply_overlay_check(int overlay_nr, int unittest_nr,
- int before, int after, enum overlay_type ovtype)
+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 */
if (of_unittest_device_exists(unittest_nr, ovtype) != before) {
- unittest(0, "overlay @\"%s\" with device @\"%s\" %s\n",
- overlay_path(overlay_nr),
+ unittest(0, "%s with device @\"%s\" %s\n",
+ overlay_name_from_nr(overlay_nr),
unittest_path(unittest_nr, ovtype),
!before ? "enabled" : "disabled");
return -EINVAL;
@@ -1437,8 +1433,8 @@ static int of_unittest_apply_overlay_check(int overlay_nr, int unittest_nr,
/* unittest device must be to set to after state */
if (of_unittest_device_exists(unittest_nr, ovtype) != after) {
- unittest(0, "overlay @\"%s\" failed to create @\"%s\" %s\n",
- overlay_path(overlay_nr),
+ 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;
@@ -1448,7 +1444,7 @@ static int of_unittest_apply_overlay_check(int overlay_nr, int unittest_nr,
}
/* apply an overlay and then revert it while checking before, after states */
-static int of_unittest_apply_revert_overlay_check(int overlay_nr,
+static int __init of_unittest_apply_revert_overlay_check(int overlay_nr,
int unittest_nr, int before, int after,
enum overlay_type ovtype)
{
@@ -1456,8 +1452,8 @@ static int of_unittest_apply_revert_overlay_check(int overlay_nr,
/* unittest device must be in before state */
if (of_unittest_device_exists(unittest_nr, ovtype) != before) {
- unittest(0, "overlay @\"%s\" with device @\"%s\" %s\n",
- overlay_path(overlay_nr),
+ unittest(0, "%s with device @\"%s\" %s\n",
+ overlay_name_from_nr(overlay_nr),
unittest_path(unittest_nr, ovtype),
!before ? "enabled" : "disabled");
return -EINVAL;
@@ -1473,8 +1469,8 @@ static int of_unittest_apply_revert_overlay_check(int overlay_nr,
/* unittest device must be in after state */
if (of_unittest_device_exists(unittest_nr, ovtype) != after) {
- unittest(0, "overlay @\"%s\" failed to create @\"%s\" %s\n",
- overlay_path(overlay_nr),
+ 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;
@@ -1482,16 +1478,16 @@ static int of_unittest_apply_revert_overlay_check(int overlay_nr,
ret = of_overlay_remove(&ovcs_id);
if (ret != 0) {
- unittest(0, "overlay @\"%s\" failed to be destroyed @\"%s\"\n",
- overlay_path(overlay_nr),
+ unittest(0, "%s failed to be destroyed @\"%s\"\n",
+ overlay_name_from_nr(overlay_nr),
unittest_path(unittest_nr, ovtype));
return ret;
}
/* unittest device must be again in before state */
if (of_unittest_device_exists(unittest_nr, PDEV_OVERLAY) != before) {
- unittest(0, "overlay @\"%s\" with device @\"%s\" %s\n",
- overlay_path(overlay_nr),
+ unittest(0, "%s with device @\"%s\" %s\n",
+ overlay_name_from_nr(overlay_nr),
unittest_path(unittest_nr, ovtype),
!before ? "enabled" : "disabled");
return -EINVAL;
@@ -1501,7 +1497,7 @@ static int of_unittest_apply_revert_overlay_check(int overlay_nr,
}
/* test activation of device */
-static void of_unittest_overlay_0(void)
+static void __init of_unittest_overlay_0(void)
{
int ret;
@@ -1514,7 +1510,7 @@ static void of_unittest_overlay_0(void)
}
/* test deactivation of device */
-static void of_unittest_overlay_1(void)
+static void __init of_unittest_overlay_1(void)
{
int ret;
@@ -1527,7 +1523,7 @@ static void of_unittest_overlay_1(void)
}
/* test activation of device */
-static void of_unittest_overlay_2(void)
+static void __init of_unittest_overlay_2(void)
{
int ret;
@@ -1540,7 +1536,7 @@ static void of_unittest_overlay_2(void)
}
/* test deactivation of device */
-static void of_unittest_overlay_3(void)
+static void __init of_unittest_overlay_3(void)
{
int ret;
@@ -1553,7 +1549,7 @@ static void of_unittest_overlay_3(void)
}
/* test activation of a full device node */
-static void of_unittest_overlay_4(void)
+static void __init of_unittest_overlay_4(void)
{
int ret;
@@ -1566,7 +1562,7 @@ static void of_unittest_overlay_4(void)
}
/* test overlay apply/revert sequence */
-static void of_unittest_overlay_5(void)
+static void __init of_unittest_overlay_5(void)
{
int ret;
@@ -1579,19 +1575,19 @@ static void of_unittest_overlay_5(void)
}
/* test overlay application in sequence */
-static void of_unittest_overlay_6(void)
+static void __init of_unittest_overlay_6(void)
{
- struct device_node *np;
int ret, i, ov_id[2], ovcs_id;
int overlay_nr = 6, unittest_nr = 6;
int before = 0, after = 1;
+ const char *overlay_name;
/* 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, "overlay @\"%s\" with device @\"%s\" %s\n",
- overlay_path(overlay_nr + i),
+ 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");
@@ -1602,18 +1598,12 @@ static void of_unittest_overlay_6(void)
/* apply the overlays */
for (i = 0; i < 2; i++) {
- np = of_find_node_by_path(overlay_path(overlay_nr + i));
- if (np == NULL) {
- unittest(0, "could not find overlay node @\"%s\"\n",
- overlay_path(overlay_nr + i));
- return;
- }
+ overlay_name = overlay_name_from_nr(overlay_nr + i);
- ovcs_id = 0;
- ret = of_overlay_apply(np, &ovcs_id);
- if (ret < 0) {
- unittest(0, "could not create overlay from \"%s\"\n",
- overlay_path(overlay_nr + i));
+ ret = overlay_data_apply(overlay_name, &ovcs_id);
+ if (!ret) {
+ unittest(0, "could not apply overlay \"%s\"\n",
+ overlay_name);
return;
}
ov_id[i] = ovcs_id;
@@ -1625,7 +1615,7 @@ static void of_unittest_overlay_6(void)
if (of_unittest_device_exists(unittest_nr + i, PDEV_OVERLAY)
!= after) {
unittest(0, "overlay @\"%s\" failed @\"%s\" %s\n",
- overlay_path(overlay_nr + i),
+ overlay_name_from_nr(overlay_nr + i),
unittest_path(unittest_nr + i,
PDEV_OVERLAY),
!after ? "enabled" : "disabled");
@@ -1637,8 +1627,8 @@ static void of_unittest_overlay_6(void)
ovcs_id = ov_id[i];
ret = of_overlay_remove(&ovcs_id);
if (ret != 0) {
- unittest(0, "overlay @\"%s\" failed destroy @\"%s\"\n",
- overlay_path(overlay_nr + i),
+ unittest(0, "%s failed destroy @\"%s\"\n",
+ overlay_name_from_nr(overlay_nr + i),
unittest_path(unittest_nr + i,
PDEV_OVERLAY));
return;
@@ -1650,8 +1640,8 @@ static void of_unittest_overlay_6(void)
/* unittest device must be again in before state */
if (of_unittest_device_exists(unittest_nr + i, PDEV_OVERLAY)
!= before) {
- unittest(0, "overlay @\"%s\" with device @\"%s\" %s\n",
- overlay_path(overlay_nr + i),
+ 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");
@@ -1663,29 +1653,23 @@ static void of_unittest_overlay_6(void)
}
/* test overlay application in sequence */
-static void of_unittest_overlay_8(void)
+static void __init of_unittest_overlay_8(void)
{
- struct device_node *np;
int ret, i, ov_id[2], ovcs_id;
int overlay_nr = 8, unittest_nr = 8;
+ const char *overlay_name;
/* we don't care about device state in this test */
/* apply the overlays */
for (i = 0; i < 2; i++) {
- np = of_find_node_by_path(overlay_path(overlay_nr + i));
- if (np == NULL) {
- unittest(0, "could not find overlay node @\"%s\"\n",
- overlay_path(overlay_nr + i));
- return;
- }
+ overlay_name = overlay_name_from_nr(overlay_nr + i);
- ovcs_id = 0;
- ret = of_overlay_apply(np, &ovcs_id);
+ ret = overlay_data_apply(overlay_name, &ovcs_id);
if (ret < 0) {
- unittest(0, "could not create overlay from \"%s\"\n",
- overlay_path(overlay_nr + i));
+ unittest(0, "could not apply overlay \"%s\"\n",
+ overlay_name);
return;
}
ov_id[i] = ovcs_id;
@@ -1696,8 +1680,8 @@ static void of_unittest_overlay_8(void)
ovcs_id = ov_id[0];
ret = of_overlay_remove(&ovcs_id);
if (ret == 0) {
- unittest(0, "overlay @\"%s\" was destroyed @\"%s\"\n",
- overlay_path(overlay_nr + 0),
+ unittest(0, "%s was destroyed @\"%s\"\n",
+ overlay_name_from_nr(overlay_nr + 0),
unittest_path(unittest_nr,
PDEV_OVERLAY));
return;
@@ -1708,8 +1692,8 @@ static void of_unittest_overlay_8(void)
ovcs_id = ov_id[i];
ret = of_overlay_remove(&ovcs_id);
if (ret != 0) {
- unittest(0, "overlay @\"%s\" not destroyed @\"%s\"\n",
- overlay_path(overlay_nr + i),
+ unittest(0, "%s not destroyed @\"%s\"\n",
+ overlay_name_from_nr(overlay_nr + i),
unittest_path(unittest_nr,
PDEV_OVERLAY));
return;
@@ -1721,7 +1705,7 @@ static void of_unittest_overlay_8(void)
}
/* test insertion of a bus with parent devices */
-static void of_unittest_overlay_10(void)
+static void __init of_unittest_overlay_10(void)
{
int ret;
char *child_path;
@@ -1744,7 +1728,7 @@ static void of_unittest_overlay_10(void)
}
/* test insertion of a bus with parent devices (and revert) */
-static void of_unittest_overlay_11(void)
+static void __init of_unittest_overlay_11(void)
{
int ret;
@@ -2010,7 +1994,7 @@ static void of_unittest_overlay_i2c_cleanup(void)
i2c_del_driver(&unittest_i2c_dev_driver);
}
-static void of_unittest_overlay_i2c_12(void)
+static void __init of_unittest_overlay_i2c_12(void)
{
int ret;
@@ -2023,7 +2007,7 @@ static void of_unittest_overlay_i2c_12(void)
}
/* test deactivation of device */
-static void of_unittest_overlay_i2c_13(void)
+static void __init of_unittest_overlay_i2c_13(void)
{
int ret;
@@ -2040,7 +2024,7 @@ static void of_unittest_overlay_i2c_14(void)
{
}
-static void of_unittest_overlay_i2c_15(void)
+static void __init of_unittest_overlay_i2c_15(void)
{
int ret;
@@ -2142,23 +2126,38 @@ static inline void __init of_unittest_overlay(void) { }
extern uint8_t __dtb_##name##_begin[]; \
extern uint8_t __dtb_##name##_end[]
-#define OVERLAY_INFO(name, expected) \
-{ .dtb_begin = __dtb_##name##_begin, \
- .dtb_end = __dtb_##name##_end, \
- .expected_result = expected, \
+#define OVERLAY_INFO(overlay_name, expected) \
+{ .dtb_begin = __dtb_##overlay_name##_begin, \
+ .dtb_end = __dtb_##overlay_name##_end, \
+ .expected_result = expected, \
+ .name = #overlay_name, \
}
struct overlay_info {
- uint8_t *dtb_begin;
- uint8_t *dtb_end;
- void *data;
- struct device_node *np_overlay;
- int expected_result;
- int overlay_id;
+ uint8_t *dtb_begin;
+ uint8_t *dtb_end;
+ int expected_result;
+ int overlay_id;
+ char *name;
};
OVERLAY_INFO_EXTERN(overlay_base);
OVERLAY_INFO_EXTERN(overlay);
+OVERLAY_INFO_EXTERN(overlay_0);
+OVERLAY_INFO_EXTERN(overlay_1);
+OVERLAY_INFO_EXTERN(overlay_2);
+OVERLAY_INFO_EXTERN(overlay_3);
+OVERLAY_INFO_EXTERN(overlay_4);
+OVERLAY_INFO_EXTERN(overlay_5);
+OVERLAY_INFO_EXTERN(overlay_6);
+OVERLAY_INFO_EXTERN(overlay_7);
+OVERLAY_INFO_EXTERN(overlay_8);
+OVERLAY_INFO_EXTERN(overlay_9);
+OVERLAY_INFO_EXTERN(overlay_10);
+OVERLAY_INFO_EXTERN(overlay_11);
+OVERLAY_INFO_EXTERN(overlay_12);
+OVERLAY_INFO_EXTERN(overlay_13);
+OVERLAY_INFO_EXTERN(overlay_15);
OVERLAY_INFO_EXTERN(overlay_bad_phandle);
OVERLAY_INFO_EXTERN(overlay_bad_symbol);
@@ -2166,6 +2165,21 @@ OVERLAY_INFO_EXTERN(overlay_bad_symbol);
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_bad_phandle, -EINVAL),
OVERLAY_INFO(overlay_bad_symbol, -EINVAL),
{}
@@ -2196,6 +2210,7 @@ void __init unittest_unflatten_overlay_base(void)
{
struct overlay_info *info;
u32 data_size;
+ void *new_fdt;
u32 size;
info = &overlays[0];
@@ -2217,17 +2232,16 @@ void __init unittest_unflatten_overlay_base(void)
return;
}
- info->data = dt_alloc_memory(size, roundup_pow_of_two(FDT_V17_SIZE));
- if (!info->data) {
+ new_fdt = dt_alloc_memory(size, roundup_pow_of_two(FDT_V17_SIZE));
+ if (!new_fdt) {
pr_err("alloc for dtb 'overlay_base' failed");
return;
}
- memcpy(info->data, info->dtb_begin, size);
+ memcpy(new_fdt, info->dtb_begin, size);
- __unflatten_device_tree(info->data, NULL, &info->np_overlay,
+ __unflatten_device_tree(new_fdt, NULL, &overlay_base_root,
dt_alloc_memory, true);
- overlay_base_root = info->np_overlay;
}
/*
@@ -2241,73 +2255,44 @@ void __init unittest_unflatten_overlay_base(void)
*
* Return 0 on unexpected error.
*/
-static int __init overlay_data_add(int onum)
+static int __init overlay_data_apply(const char *overlay_name, int *overlay_id)
{
struct overlay_info *info;
+ int found = 0;
int k;
int ret;
u32 size;
- u32 size_from_header;
- for (k = 0, info = overlays; info; info++, k++) {
- if (k == onum)
+ for (k = 0, info = overlays; info && info->name; info++, k++) {
+ if (!strcmp(overlay_name, info->name)) {
+ found = 1;
break;
+ }
}
- if (onum > k)
+ if (!found) {
+ pr_err("no overlay data for %s\n", overlay_name);
return 0;
+ }
size = info->dtb_end - info->dtb_begin;
if (!size) {
- pr_err("no overlay to attach, %d\n", onum);
+ pr_err("no overlay data for %s\n", overlay_name);
ret = 0;
}
- size_from_header = fdt_totalsize(info->dtb_begin);
- if (size_from_header != size) {
- pr_err("overlay header totalsize != actual size, %d", onum);
- return 0;
- }
-
- /*
- * Must create permanent copy of FDT because of_fdt_unflatten_tree()
- * will create pointers to the passed in FDT in the EDT.
- */
- info->data = kmemdup(info->dtb_begin, size, GFP_KERNEL);
- if (!info->data) {
- pr_err("unable to allocate memory for data, %d\n", onum);
- return 0;
- }
-
- of_fdt_unflatten_tree(info->data, NULL, &info->np_overlay);
- if (!info->np_overlay) {
- pr_err("unable to unflatten overlay, %d\n", onum);
- ret = 0;
- goto out_free_data;
- }
-
- info->overlay_id = 0;
- ret = of_overlay_apply(info->np_overlay, &info->overlay_id);
- if (ret < 0) {
- pr_err("of_overlay_apply() (ret=%d), %d\n", ret, onum);
- goto out_free_np_overlay;
- }
-
- pr_debug("__dtb_overlay_begin applied, overlay id %d\n", ret);
-
- goto out;
-
-out_free_np_overlay:
- /*
- * info->np_overlay is the unflattened device tree
- * It has not been spliced into the live tree.
- */
-
- /* todo: function to free unflattened device tree */
+ ret = of_overlay_fdt_apply(info->dtb_begin, size, &info->overlay_id);
+ if (overlay_id)
+ *overlay_id = info->overlay_id;
+ if (ret < 0)
+ goto out;
-out_free_data:
- kfree(info->data);
+ pr_debug("%s applied\n", overlay_name);
out:
+ if (ret != info->expected_result)
+ pr_err("of_overlay_fdt_apply() expected %d, ret=%d, %s\n",
+ info->expected_result, ret, overlay_name);
+
return (ret == info->expected_result);
}
@@ -2409,18 +2394,29 @@ static __init void of_unittest_overlay_high_level(void)
__of_attach_node_sysfs(np);
if (of_symbols) {
+ struct property *new_prop;
for_each_property_of_node(overlay_base_symbols, prop) {
- ret = __of_add_property(of_symbols, prop);
+
+ new_prop = __of_prop_dup(prop, GFP_KERNEL);
+ if (!new_prop) {
+ unittest(0, "__of_prop_dup() of '%s' from overlay_base node __symbols__",
+ prop->name);
+ goto err_unlock;
+ }
+ ret = __of_add_property(of_symbols, new_prop);
if (ret) {
- unittest(0,
- "duplicate property '%s' in overlay_base node __symbols__",
+ if (!strcmp(new_prop->name, "name")) {
+ /* auto-generated by unflatten */
+ ret = 0;
+ continue;
+ }
+ unittest(0, "duplicate property '%s' in overlay_base node __symbols__",
prop->name);
goto err_unlock;
}
- ret = __of_add_property_sysfs(of_symbols, prop);
+ ret = __of_add_property_sysfs(of_symbols, new_prop);
if (ret) {
- unittest(0,
- "unable to add property '%s' in overlay_base node __symbols__ to sysfs",
+ unittest(0, "unable to add property '%s' in overlay_base node __symbols__ to sysfs",
prop->name);
goto err_unlock;
}
@@ -2432,13 +2428,13 @@ static __init void of_unittest_overlay_high_level(void)
/* now do the normal overlay usage test */
- unittest(overlay_data_add(1),
+ unittest(overlay_data_apply("overlay", NULL),
"Adding overlay 'overlay' failed\n");
- unittest(overlay_data_add(2),
+ unittest(overlay_data_apply("overlay_bad_phandle", NULL),
"Adding overlay 'overlay_bad_phandle' failed\n");
- unittest(overlay_data_add(3),
+ unittest(overlay_data_apply("overlay_bad_symbol", NULL),
"Adding overlay 'overlay_bad_symbol' failed\n");
return;
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-15 08:29:08 +0300