[POWERPC] Add machine initcall macros

The machine initcall macros allow initcalls to be registered which
test machine_is() before executing the initcall.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/include/asm-powerpc/machdep.h b/include/asm-powerpc/machdep.h
index 6968f4300dca..d5cd98214fab 100644
--- a/include/asm-powerpc/machdep.h
+++ b/include/asm-powerpc/machdep.h
@@ -326,5 +326,28 @@ static inline void log_error(char *buf, unsigned int err_type, int fatal)
                 ppc_md.log_error(buf, err_type, fatal);
 }
 
+#define __define_machine_initcall(mach,level,fn,id) \
+        static int __init __machine_initcall_##mach##_##fn(void) { \
+                if (machine_is(mach)) return fn(); \
+                return 0; \
+        } \
+        __define_initcall(level,__machine_initcall_##mach##_##fn,id);
+
+#define machine_core_initcall(mach,fn)          __define_machine_initcall(mach,"1",fn,1)
+#define machine_core_initcall_sync(mach,fn)     __define_machine_initcall(mach,"1s",fn,1s)
+#define machine_postcore_initcall(mach,fn)      __define_machine_initcall(mach,"2",fn,2)
+#define machine_postcore_initcall_sync(mach,fn) __define_machine_initcall(mach,"2s",fn,2s)
+#define machine_arch_initcall(mach,fn)          __define_machine_initcall(mach,"3",fn,3)
+#define machine_arch_initcall_sync(mach,fn)     __define_machine_initcall(mach,"3s",fn,3s)
+#define machine_subsys_initcall(mach,fn)        __define_machine_initcall(mach,"4",fn,4)
+#define machine_subsys_initcall_sync(mach,fn)   __define_machine_initcall(mach,"4s",fn,4s)
+#define machine_fs_initcall(mach,fn)            __define_machine_initcall(mach,"5",fn,5)
+#define machine_fs_initcall_sync(mach,fn)       __define_machine_initcall(mach,"5s",fn,5s)
+#define machine_rootfs_initcall(mach,fn)        __define_machine_initcall(mach,"rootfs",fn,rootfs)
+#define machine_device_initcall(mach,fn)        __define_machine_initcall(mach,"6",fn,6)
+#define machine_device_initcall_sync(mach,fn)   __define_machine_initcall(mach,"6s",fn,6s)
+#define machine_late_initcall(mach,fn)          __define_machine_initcall(mach,"7",fn,7)
+#define machine_late_initcall_sync(mach,fn)     __define_machine_initcall(mach,"7s",fn,7s)
+
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_MACHDEP_H */