vserver 1.9.3

[linux-2.6.git] / include / asm-ppc64 / prom.h

diff --git a/include/asm-ppc64/prom.h b/include/asm-ppc64/prom.h
index 87db2ec..482f9f6 100644 (file)
--- a/include/asm-ppc64/prom.h
+++ b/include/asm-ppc64/prom.h
@@ -24,14 +24,47 @@
 #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 */
+};
+
+
+
 typedef u32 phandle;
 typedef u32 ihandle;
 typedef u32 phandle32;
 typedef u32 ihandle32;
 
-extern char *prom_display_paths[];
-extern unsigned int prom_num_displays;
-
 struct address_range {
        unsigned long space;
        unsigned long address;
@@ -136,6 +169,7 @@ struct property {
  */
 struct pci_controller;
 struct iommu_table;
+
 struct device_node {
        char    *name;
        char    *type;
@@ -171,6 +205,8 @@ struct device_node {
        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 */
@@ -202,34 +238,6 @@ static void inline set_node_addr_link(struct device_node *dn, struct proc_dir_en
        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 *find_type_devices(const char *type);
@@ -246,6 +254,7 @@ extern struct device_node *of_find_node_by_type(struct device_node *from,
 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,