From bedbef8ad3e75a304af6361af235302bcc61d06b Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 14 May 2024 06:39:01 +0000
Subject: [PATCH] 修改内核路径
---
kernel/include/linux/of.h | 76 ++++++++++++++++++++++++++++++++-----
1 files changed, 65 insertions(+), 11 deletions(-)
diff --git a/kernel/include/linux/of.h b/kernel/include/linux/of.h
index 6429f00..16db9ba 100644
--- a/kernel/include/linux/of.h
+++ b/kernel/include/linux/of.h
@@ -50,7 +50,6 @@
struct device_node {
const char *name;
- const char *type;
phandle phandle;
const char *full_name;
struct fwnode_handle fwnode;
@@ -66,7 +65,6 @@
unsigned long _flags;
void *data;
#if defined(CONFIG_SPARC)
- const char *path_component_name;
unsigned int unique_id;
struct of_irq_controller *irq_trans;
#endif
@@ -110,7 +108,7 @@
#if defined(CONFIG_OF_KOBJ)
kobject_init(&node->kobj, &of_node_ktype);
#endif
- node->fwnode.ops = &of_fwnode_ops;
+ fwnode_init(&node->fwnode, &of_fwnode_ops);
}
#if defined(CONFIG_OF_KOBJ)
@@ -252,12 +250,6 @@
#include <asm/prom.h>
#endif
-/* Default #address and #size cells. Allow arch asm/prom.h to override */
-#if !defined(OF_ROOT_NODE_ADDR_CELLS_DEFAULT)
-#define OF_ROOT_NODE_ADDR_CELLS_DEFAULT 1
-#define OF_ROOT_NODE_SIZE_CELLS_DEFAULT 1
-#endif
-
#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
@@ -358,6 +350,10 @@
const char *name,
int *lenp);
extern struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);
+extern struct device_node *of_get_next_cpu_node(struct device_node *prev);
+extern struct device_node *of_get_cpu_state_node(struct device_node *cpu_node,
+ int index);
+
#define for_each_property_of_node(dn, pp) \
for (pp = dn->properties; pp != NULL; pp = pp->next)
@@ -397,6 +393,9 @@
extern void of_alias_scan(void * (*dt_alloc)(u64 size, u64 align));
extern int of_alias_get_id(struct device_node *np, const char *stem);
extern int of_alias_get_highest_id(const char *stem);
+extern int of_alias_get_alias_list(const struct of_device_id *matches,
+ const char *stem, unsigned long *bitmap,
+ unsigned int nbits);
extern int of_machine_is_compatible(const char *compat);
@@ -555,6 +554,12 @@
extern int of_cpu_node_to_id(struct device_node *np);
+int of_map_id(struct device_node *np, u32 id,
+ const char *map_name, const char *map_mask_name,
+ struct device_node **target, u32 *id_out);
+
+phys_addr_t of_dma_get_max_cpu_address(struct device_node *np);
+
#else /* CONFIG_OF */
static inline void of_core_init(void)
@@ -623,6 +628,11 @@
}
static inline struct device_node *of_get_parent(const struct device_node *node)
+{
+ return NULL;
+}
+
+static inline struct device_node *of_get_next_parent(struct device_node *node)
{
return NULL;
}
@@ -755,6 +765,17 @@
static inline struct device_node *of_get_cpu_node(int cpu,
unsigned int *thread)
+{
+ return NULL;
+}
+
+static inline struct device_node *of_get_next_cpu_node(struct device_node *prev)
+{
+ return NULL;
+}
+
+static inline struct device_node *of_get_cpu_state_node(struct device_node *cpu_node,
+ int index)
{
return NULL;
}
@@ -898,7 +919,24 @@
return -ENOSYS;
}
+static inline int of_alias_get_alias_list(const struct of_device_id *matches,
+ const char *stem, unsigned long *bitmap,
+ unsigned int nbits)
+{
+ return -ENOSYS;
+}
+
static inline int of_machine_is_compatible(const char *compat)
+{
+ return 0;
+}
+
+static inline int of_add_property(struct device_node *np, struct property *prop)
+{
+ return 0;
+}
+
+static inline int of_remove_property(struct device_node *np, struct property *prop)
{
return 0;
}
@@ -955,6 +993,18 @@
static inline int of_cpu_node_to_id(struct device_node *np)
{
return -ENODEV;
+}
+
+static inline int of_map_id(struct device_node *np, u32 id,
+ const char *map_name, const char *map_mask_name,
+ struct device_node **target, u32 *id_out)
+{
+ return -EINVAL;
+}
+
+static inline phys_addr_t of_dma_get_max_cpu_address(struct device_node *np)
+{
+ return PHYS_ADDR_MAX;
}
#define of_match_ptr(_ptr) NULL
@@ -1144,7 +1194,7 @@
}
/**
- * of_property_read_bool - Findfrom a property
+ * of_property_read_bool - Find a property
* @np: device node from which the property value is to be read.
* @propname: name of the property to be searched.
*
@@ -1228,6 +1278,10 @@
for (child = of_get_next_available_child(parent, NULL); child != NULL; \
child = of_get_next_available_child(parent, child))
+#define for_each_of_cpu_node(cpu) \
+ for (cpu = of_get_next_cpu_node(NULL); cpu != NULL; \
+ cpu = of_get_next_cpu_node(cpu))
+
#define for_each_node_with_property(dn, prop_name) \
for (dn = of_find_node_with_property(NULL, prop_name); dn; \
dn = of_find_node_with_property(dn, prop_name))
@@ -1257,7 +1311,7 @@
#if defined(CONFIG_OF) && !defined(MODULE)
#define _OF_DECLARE(table, name, compat, fn, fn_type) \
static const struct of_device_id __of_table_##name \
- __used __section(__##table##_of_table) \
+ __used __section("__" #table "_of_table") \
__aligned(__alignof__(struct of_device_id)) \
= { .compatible = compat, \
.data = (fn == (fn_type)NULL) ? fn : fn }
--
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