Changeset 2e672fd in mainline for genarch/ofw.h

Timestamp:

2006-07-10T20:48:40Z (18 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

daab5145

Parents:

822b64e

Message:

Some 32-bit vs. 64-bit fixes.

Make the call to OpenFirmware client interface architecture dependent.
For instance and contrary to my previous experience, the sparc64 version of
'translate' method would not work reliably unless the Address Mask bit in the
PSTATE register is cleared during duration of the call.

sparc64 and ppc32 OpenFirmware seem to differ in details, for example, the above
mentioned method 'translate' signals success by setting the first return value
to -1 on sparc64 while on ppc32 the value is/stays (???) zero.

File:

• genarch/ofw.h (modified) (5 diffs)

genarch/ofw.h

@@ -37 +37 @@
 #define MEMMAP_MAX_RECORDS      32
 
+#define MAX_OFW_ARGS            12
+
+typedef unsigned long ofw_arg_t;
+typedef unsigned int ihandle;
+typedef unsigned int phandle;
+
+/** OpenFirmware command structure
+ *
+ */
+typedef struct {
+        const char *service;            /**< Command name */
+        unsigned long nargs;            /**< Number of in arguments */
+        unsigned long nret;             /**< Number of out arguments */
+        ofw_arg_t args[MAX_OFW_ARGS];   /**< List of arguments */
+} ofw_args_t;
+
 typedef struct {
         void *start;
@@ -49 +65 @@
 
 typedef struct {
-        void *addr;
+        uint32_t addr;
         unsigned int width;
         unsigned int height;
@@ -57 +73 @@
 
 typedef struct {
-        void *addr;
+        uint32_t addr;
         unsigned int size;
 } keyboard_t;
@@ -73 +89 @@
 } pci_reg_t;
 
-typedef unsigned long ofw_arg_t;
-typedef unsigned int ihandle;
-typedef unsigned int phandle;
+extern uintptr_t ofw_cif;
 
 extern phandle ofw_aliases;
@@ -85 +99 @@
 extern phandle ofw_find_device(const char *name);
 
+extern int ofw(ofw_args_t *arg);
 extern void *ofw_translate(const void *virt);
+extern int ofw_translate_failed(ofw_arg_t flag);
+extern void *ofw_claim(const void *virt, const int len);
 extern int ofw_map(const void *phys, const void *virt, const int size, const int mode);
 extern int ofw_memmap(memmap_t *map);