#define PTRUNRELOC(x) ((typeof(x))((unsigned long)(x) + offset))
#define RELOC(x) (*PTRRELOC(&(x)))
-#define LONG_LSW(X) (((unsigned long)X) & 0xffffffff)
-#define LONG_MSW(X) (((unsigned long)X) >> 32)
+/* Definitions used by the flattened device tree */
+#define OF_DT_HEADER 0xd00dfeed /* 4: version, 4: total size */
+#define OF_DT_BEGIN_NODE 0x1 /* Start node: full name */
+#define OF_DT_END_NODE 0x2 /* End node */
+#define OF_DT_PROP 0x3 /* Property: name off, size, content */
+#define OF_DT_END 0x9
+
+#define OF_DT_VERSION 1
+
+/*
+ * This is what gets passed to the kernel by prom_init or kexec
+ *
+ * The dt struct contains the device tree structure, full pathes and
+ * property contents. The dt strings contain a separate block with just
+ * the strings for the property names, and is fully page aligned and
+ * self contained in a page, so that it can be kept around by the kernel,
+ * each property name appears only once in this page (cheap compression)
+ *
+ * the mem_rsvmap contains a map of reserved ranges of physical memory,
+ * passing it here instead of in the device-tree itself greatly simplifies
+ * the job of everybody. It's just a list of u64 pairs (base/size) that
+ * ends when size is 0
+ */
+struct boot_param_header
+{
+ u32 magic; /* magic word OF_DT_HEADER */
+ u32 totalsize; /* total size of DT block */
+ u32 off_dt_struct; /* offset to structure */
+ u32 off_dt_strings; /* offset to strings */
+ u32 off_mem_rsvmap; /* offset to memory reserve map */
+ u32 version; /* format version */
+ u32 last_comp_version; /* last compatible version */
+ /* version 2 fields below */
+ u32 boot_cpuid_phys; /* Which physical CPU id we're booting on */
+};
+
-typedef u32 phandle;
-typedef void *ihandle;
-typedef u32 phandle32;
-typedef u32 ihandle32;
-extern char *prom_display_paths[];
-extern unsigned int prom_num_displays;
+typedef u32 phandle;
+typedef u32 ihandle;
struct address_range {
unsigned long space;
unsigned int size;
};
-struct pci_range32 {
- struct pci_address child_addr;
- unsigned int parent_addr;
- unsigned long size;
-};
-
-struct pci_range64 {
- struct pci_address child_addr;
- unsigned long parent_addr;
- unsigned long size;
-};
-
-union pci_range {
- struct {
- struct pci_address addr;
- u32 phys;
- u32 size_hi;
- } pci32;
- struct {
- struct pci_address addr;
- u32 phys_hi;
- u32 phys_lo;
- u32 size_hi;
- u32 size_lo;
- } pci64;
-};
-
-struct of_tce_table {
- phandle node;
- unsigned long base;
- unsigned long size;
-};
-extern struct of_tce_table of_tce_table[];
-
struct reg_property {
unsigned long address;
unsigned long size;
unsigned long size;
};
-struct reg_property_pmac {
- unsigned int address_hi;
- unsigned int address_lo;
- unsigned int size;
-};
-
-struct translation_property {
- unsigned long virt;
- unsigned long size;
- unsigned long phys;
- unsigned int flags;
-};
-
struct property {
char *name;
int length;
*/
struct pci_controller;
struct iommu_table;
+
struct device_node {
char *name;
char *type;
int busno; /* for pci devices */
int bussubno; /* for pci devices */
int devfn; /* for pci devices */
-#define DN_STATUS_BIST_FAILED (1<<0)
- int status; /* Current device status (non-zero is bad) */
int eeh_mode; /* See eeh.h for possible EEH_MODEs */
int eeh_config_addr;
+ int pci_ext_config_space; /* for pci devices */
struct pci_controller *phb; /* for pci devices */
struct iommu_table *iommu_table; /* for phb's or bridges */
struct device_node *sibling;
struct device_node *next; /* next device of same type */
struct device_node *allnext; /* next in list of all nodes */
- struct proc_dir_entry *pde; /* this node's proc directory */
- struct proc_dir_entry *name_link; /* name symlink */
- struct proc_dir_entry *addr_link; /* addr symlink */
- atomic_t _users; /* reference count */
+ struct proc_dir_entry *pde; /* this node's proc directory */
+ struct kref kref;
unsigned long _flags;
};
+extern struct device_node *of_chosen;
+
/* flag descriptions */
-#define OF_STALE 0 /* node is slated for deletion */
#define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */
-#define OF_IS_STALE(x) test_bit(OF_STALE, &x->_flags)
-#define OF_MARK_STALE(x) set_bit(OF_STALE, &x->_flags)
#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
dn->pde = de;
}
-static void inline set_node_name_link(struct device_node *dn, struct proc_dir_entry *de)
-{
- dn->name_link = de;
-}
-
-static void inline set_node_addr_link(struct device_node *dn, struct proc_dir_entry *de)
-{
- dn->addr_link = de;
-}
-
-typedef u32 prom_arg_t;
-
-struct prom_args {
- u32 service;
- u32 nargs;
- u32 nret;
- prom_arg_t args[10];
- prom_arg_t *rets; /* Pointer to return values in args[16]. */
-};
-
-struct prom_t {
- unsigned long entry;
- ihandle root;
- ihandle chosen;
- int cpu;
- ihandle stdout;
- ihandle disp_node;
- struct prom_args args;
- unsigned long version;
- unsigned long encode_phys_size;
- struct bi_record *bi_recs;
-};
-
-extern struct prom_t prom;
-extern char *of_stdout_device;
-
-extern int boot_cpuid;
/* OBSOLETE: Old stlye node lookup */
extern struct device_node *find_devices(const char *name);
extern struct device_node *of_find_compatible_node(struct device_node *from,
const char *type, const char *compat);
extern struct device_node *of_find_node_by_path(const char *path);
+extern struct device_node *of_find_node_by_phandle(phandle handle);
extern struct device_node *of_find_all_nodes(struct device_node *prev);
extern struct device_node *of_get_parent(const struct device_node *node);
extern struct device_node *of_get_next_child(const struct device_node *node,
extern void of_node_put(struct device_node *node);
/* For updating the device tree at runtime */
-extern int of_add_node(const char *path, struct property *proplist);
-extern int of_remove_node(struct device_node *np);
+extern void of_attach_node(struct device_node *);
+extern void of_detach_node(const struct device_node *);
/* Other Prototypes */
extern unsigned long prom_init(unsigned long, unsigned long, unsigned long,
unsigned long, unsigned long);
-extern void relocate_nodes(void);
extern void finish_device_tree(void);
extern int device_is_compatible(struct device_node *device, const char *);
extern int machine_is_compatible(const char *compat);
extern void print_properties(struct device_node *node);
extern int prom_n_addr_cells(struct device_node* np);
extern int prom_n_size_cells(struct device_node* np);
+extern int prom_n_intr_cells(struct device_node* np);
extern void prom_get_irq_senses(unsigned char *senses, int off, int max);
extern void prom_add_property(struct device_node* np, struct property* prop);
git://git.onelab.eu / linux-2.6.git / blobdiff