Merge master.kernel.org:/pub/scm/linux/kernel/git/paulus/ppc64-2.6

38 files changed, 179 insertions, 310 deletions

diff --git a/include/asm-powerpc/8253pit.h b/include/asm-powerpc/8253pit.h
index 862708a749b0..b70d6e53b303 100644
--- a/include/asm-powerpc/8253pit.h
+++ b/include/asm-powerpc/8253pit.h
@@ -1,10 +1,10 @@
+#ifndef _ASM_POWERPC_8253PIT_H
+#define _ASM_POWERPC_8253PIT_H
+
 /*
  * 8253/8254 Programmable Interval Timer
  */
 
-#ifndef _8253PIT_H
-#define _8253PIT_H
-
 #define PIT_TICK_RATE   1193182UL
 
-#endif
+#endif  /* _ASM_POWERPC_8253PIT_H */
diff --git a/include/asm-powerpc/agp.h b/include/asm-powerpc/agp.h
index ca9e423307f4..885b4631a6cf 100644
--- a/include/asm-powerpc/agp.h
+++ b/include/asm-powerpc/agp.h
@@ -1,10 +1,8 @@
-#ifndef AGP_H
-#define AGP_H 1
+#ifndef _ASM_POWERPC_AGP_H
+#define _ASM_POWERPC_AGP_H
 
 #include <asm/io.h>
 
-/* nothing much needed here */
-
 #define map_page_into_agp(page)
 #define unmap_page_from_agp(page)
 #define flush_agp_mappings()
@@ -20,4 +18,4 @@
 #define free_gatt_pages(table, order)   \
         free_pages((unsigned long)(table), (order))
 
-#endif
+#endif  /* _ASM_POWERPC_AGP_H */
diff --git a/include/asm-powerpc/bugs.h b/include/asm-powerpc/bugs.h
index 310187d0e33a..42fdb73e3068 100644
--- a/include/asm-powerpc/bugs.h
+++ b/include/asm-powerpc/bugs.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_BUGS_H
-#define _POWERPC_BUGS_H
+#ifndef _ASM_POWERPC_BUGS_H
+#define _ASM_POWERPC_BUGS_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -13,6 +13,6 @@
  * architecture-dependent bugs.
  */
 
-extern void check_bugs(void);
+static inline void check_bugs(void) { }
 
-#endif /* _POWERPC_BUGS_H */
+#endif  /* _ASM_POWERPC_BUGS_H */
diff --git a/include/asm-powerpc/errno.h b/include/asm-powerpc/errno.h
index 19f20bd41ae6..8c145fd17d86 100644
--- a/include/asm-powerpc/errno.h
+++ b/include/asm-powerpc/errno.h
@@ -1,5 +1,5 @@
-#ifndef _PPC_ERRNO_H
-#define _PPC_ERRNO_H
+#ifndef _ASM_POWERPC_ERRNO_H
+#define _ASM_POWERPC_ERRNO_H
 
 #include <asm-generic/errno.h>
 
@@ -8,4 +8,4 @@
 
 #define _LAST_ERRNO     516
 
-#endif
+#endif  /* _ASM_POWERPC_ERRNO_H */
diff --git a/include/asm-powerpc/ioctl.h b/include/asm-powerpc/ioctl.h
index 93c6acfdd0fd..8eb99848c402 100644
--- a/include/asm-powerpc/ioctl.h
+++ b/include/asm-powerpc/ioctl.h
@@ -1,5 +1,5 @@
-#ifndef _PPC_IOCTL_H
-#define _PPC_IOCTL_H
+#ifndef _ASM_POWERPC_IOCTL_H
+#define _ASM_POWERPC_IOCTL_H
 
 
 /*
@@ -66,4 +66,4 @@ extern unsigned int __invalid_size_argument_for_IOC;
 #define IOCSIZE_MASK    (_IOC_SIZEMASK << _IOC_SIZESHIFT)
 #define IOCSIZE_SHIFT   (_IOC_SIZESHIFT)
 
-#endif
+#endif  /* _ASM_POWERPC_IOCTL_H */
diff --git a/include/asm-powerpc/ioctls.h b/include/asm-powerpc/ioctls.h
index f5b7f2b055e7..5b94ff489b8b 100644
--- a/include/asm-powerpc/ioctls.h
+++ b/include/asm-powerpc/ioctls.h
@@ -1,5 +1,5 @@
-#ifndef _ASM_PPC_IOCTLS_H
-#define _ASM_PPC_IOCTLS_H
+#ifndef _ASM_POWERPC_IOCTLS_H
+#define _ASM_POWERPC_IOCTLS_H
 
 #include <asm/ioctl.h>
 
@@ -104,4 +104,4 @@
 #define TIOCMIWAIT      0x545C  /* wait for a change on serial input line(s) */
 #define TIOCGICOUNT     0x545D  /* read serial port inline interrupt counts */
 
-#endif /* _ASM_PPC_IOCTLS_H */
+#endif  /* _ASM_POWERPC_IOCTLS_H */
diff --git a/include/asm-powerpc/linkage.h b/include/asm-powerpc/linkage.h
index 291c2d01c44f..e1c4ac1cc4ba 100644
--- a/include/asm-powerpc/linkage.h
+++ b/include/asm-powerpc/linkage.h
@@ -1,6 +1,6 @@
-#ifndef __ASM_LINKAGE_H
-#define __ASM_LINKAGE_H
+#ifndef _ASM_POWERPC_LINKAGE_H
+#define _ASM_POWERPC_LINKAGE_H
 
 /* Nothing to see here... */
 
-#endif
+#endif  /* _ASM_POWERPC_LINKAGE_H */
diff --git a/include/asm-powerpc/mc146818rtc.h b/include/asm-powerpc/mc146818rtc.h
index a5619a2a1393..f2741c8b59a1 100644
--- a/include/asm-powerpc/mc146818rtc.h
+++ b/include/asm-powerpc/mc146818rtc.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_MC146818RTC_H
-#define _POWERPC_MC146818RTC_H
+#ifndef _ASM_POWERPC_MC146818RTC_H
+#define _ASM_POWERPC_MC146818RTC_H
 
 /*
  * Machine dependent access functions for RTC registers.
@@ -33,4 +33,4 @@ outb_p((val),RTC_PORT(1)); \
 })
 
 #endif  /* __KERNEL__ */
-#endif  /* _POWERPC_MC146818RTC_H */
+#endif  /* _ASM_POWERPC_MC146818RTC_H */
diff --git a/include/asm-powerpc/mman.h b/include/asm-powerpc/mman.h
index f2d55988d749..f5e5342fcac5 100644
--- a/include/asm-powerpc/mman.h
+++ b/include/asm-powerpc/mman.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_MMAN_H
-#define _POWERPC_MMAN_H
+#ifndef _ASM_POWERPC_MMAN_H
+#define _ASM_POWERPC_MMAN_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -49,4 +49,4 @@
 #define MAP_ANON        MAP_ANONYMOUS
 #define MAP_FILE        0
 
-#endif /* _POWERPC_MMAN_H */
+#endif  /* _ASM_POWERPC_MMAN_H */
diff --git a/include/asm-powerpc/module.h b/include/asm-powerpc/module.h
index 4438f4fd6524..7ecd05e03051 100644
--- a/include/asm-powerpc/module.h
+++ b/include/asm-powerpc/module.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_MODULE_H
-#define _POWERPC_MODULE_H
+#ifndef _ASM_POWERPC_MODULE_H
+#define _ASM_POWERPC_MODULE_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -74,4 +74,4 @@ struct exception_table_entry;
 void sort_ex_table(struct exception_table_entry *start,
                    struct exception_table_entry *finish);
 
-#endif /* _POWERPC_MODULE_H */
+#endif  /* _ASM_POWERPC_MODULE_H */
diff --git a/include/asm-ppc/msgbuf.h b/include/asm-powerpc/msgbuf.h
index 1053452a9376..dd76743c7537 100644
--- a/include/asm-ppc/msgbuf.h
+++ b/include/asm-powerpc/msgbuf.h
@@ -1,17 +1,25 @@
-#ifndef _PPC_MSGBUF_H
-#define _PPC_MSGBUF_H
+#ifndef _ASM_POWERPC_MSGBUF_H
+#define _ASM_POWERPC_MSGBUF_H
 
 /*
- * The msqid64_ds structure for the PPC architecture.
+ * The msqid64_ds structure for the PowerPC architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
  */
 
 struct msqid64_ds {
         struct ipc64_perm msg_perm;
+#ifndef __powerpc64__
         unsigned int    __unused1;
+#endif
         __kernel_time_t msg_stime;      /* last msgsnd time */
+#ifndef __powerpc64__
         unsigned int    __unused2;
+#endif
         __kernel_time_t msg_rtime;      /* last msgrcv time */
+#ifndef __powerpc64__
         unsigned int    __unused3;
+#endif
         __kernel_time_t msg_ctime;      /* last change time */
         unsigned long  msg_cbytes;      /* current number of bytes on queue */
         unsigned long  msg_qnum;        /* number of messages in queue */
@@ -22,4 +30,4 @@ struct msqid64_ds {
         unsigned long  __unused5;
 };
 
-#endif /* _PPC_MSGBUF_H */
+#endif  /* _ASM_POWERPC_MSGBUF_H */
diff --git a/include/asm-powerpc/namei.h b/include/asm-powerpc/namei.h
index 29c9ec832133..657443474a6a 100644
--- a/include/asm-powerpc/namei.h
+++ b/include/asm-powerpc/namei.h
@@ -1,14 +1,14 @@
+#ifndef _ASM_POWERPC_NAMEI_H
+#define _ASM_POWERPC_NAMEI_H
+
+#ifdef __KERNEL__
+
 /*
- * include/asm-ppc/namei.h
  * Adapted from include/asm-alpha/namei.h
  *
  * Included from fs/namei.c
  */
 
-#ifdef __KERNEL__
-#ifndef __PPC_NAMEI_H
-#define __PPC_NAMEI_H
-
 /* This dummy routine maybe changed to something useful
  * for /usr/gnemul/ emulation stuff.
  * Look at asm-sparc/namei.h for details.
@@ -16,5 +16,5 @@
 
 #define __emul_prefix() NULL
 
-#endif /* __PPC_NAMEI_H */
-#endif /* __KERNEL__ */
+#endif  /* __KERNEL__ */
+#endif  /* _ASM_POWERPC_NAMEI_H */
diff --git a/include/asm-ppc/param.h b/include/asm-powerpc/param.h
index 6198b1657a45..bdc724f70884 100644
--- a/include/asm-ppc/param.h
+++ b/include/asm-powerpc/param.h
@@ -1,10 +1,10 @@
-#ifndef _ASM_PPC_PARAM_H
-#define _ASM_PPC_PARAM_H
+#ifndef _ASM_POWERPC_PARAM_H
+#define _ASM_POWERPC_PARAM_H
 
 #include <linux/config.h>
 
 #ifdef __KERNEL__
-#define HZ              CONFIG_HZ       /* internal timer frequency */
+#define HZ              CONFIG_HZ       /* internal kernel timer frequency */
 #define USER_HZ         100             /* for user interfaces in "ticks" */
 #define CLOCKS_PER_SEC  (USER_HZ)       /* frequency at which times() counts */
 #endif /* __KERNEL__ */
@@ -21,4 +21,4 @@
 
 #define MAXHOSTNAMELEN  64      /* max length of hostname */
 
-#endif
+#endif  /* _ASM_POWERPC_PARAM_H */
diff --git a/include/asm-powerpc/poll.h b/include/asm-powerpc/poll.h
index be5024913c62..edd2054da86b 100644
--- a/include/asm-powerpc/poll.h
+++ b/include/asm-powerpc/poll.h
@@ -1,5 +1,5 @@
-#ifndef __PPC_POLL_H
-#define __PPC_POLL_H
+#ifndef _ASM_POWERPC_POLL_H
+#define _ASM_POWERPC_POLL_H
 
 #define POLLIN          0x0001
 #define POLLPRI         0x0002
@@ -20,4 +20,4 @@ struct pollfd {
         short revents;
 };
 
-#endif
+#endif  /* _ASM_POWERPC_POLL_H */
diff --git a/include/asm-powerpc/sembuf.h b/include/asm-powerpc/sembuf.h
index c98fc18fe805..99a41938ae3d 100644
--- a/include/asm-powerpc/sembuf.h
+++ b/include/asm-powerpc/sembuf.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_SEMBUF_H
-#define _POWERPC_SEMBUF_H
+#ifndef _ASM_POWERPC_SEMBUF_H
+#define _ASM_POWERPC_SEMBUF_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -33,4 +33,4 @@ struct semid64_ds {
         unsigned long   __unused4;
 };
 
-#endif /* _POWERPC_SEMBUF_H */
+#endif  /* _ASM_POWERPC_SEMBUF_H */
diff --git a/include/asm-powerpc/setup.h b/include/asm-powerpc/setup.h
new file mode 100644
index 000000000000..3d9740aae018
--- /dev/null
+++ b/include/asm-powerpc/setup.h
@@ -0,0 +1,9 @@
+#ifndef _ASM_POWERPC_SETUP_H
+#define _ASM_POWERPC_SETUP_H
+
+#ifdef __KERNEL__
+
+#define COMMAND_LINE_SIZE       512
+
+#endif  /* __KERNEL__ */
+#endif  /* _ASM_POWERPC_SETUP_H */
diff --git a/include/asm-powerpc/shmbuf.h b/include/asm-powerpc/shmbuf.h
index 29632db3b178..8efa39698b6c 100644
--- a/include/asm-powerpc/shmbuf.h
+++ b/include/asm-powerpc/shmbuf.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_SHMBUF_H
-#define _POWERPC_SHMBUF_H
+#ifndef _ASM_POWERPC_SHMBUF_H
+#define _ASM_POWERPC_SHMBUF_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -21,19 +21,19 @@
 
 struct shmid64_ds {
         struct ipc64_perm       shm_perm;       /* operation perms */
-#ifndef __power64__
+#ifndef __powerpc64__
         unsigned long           __unused1;
 #endif
         __kernel_time_t         shm_atime;      /* last attach time */
-#ifndef __power64__
+#ifndef __powerpc64__
         unsigned long           __unused2;
 #endif
         __kernel_time_t         shm_dtime;      /* last detach time */
-#ifndef __power64__
+#ifndef __powerpc64__
         unsigned long           __unused3;
 #endif
         __kernel_time_t         shm_ctime;      /* last change time */
-#ifndef __power64__
+#ifndef __powerpc64__
         unsigned long           __unused4;
 #endif
         size_t                  shm_segsz;      /* size of segment (bytes) */
@@ -56,4 +56,4 @@ struct shminfo64 {
         unsigned long   __unused4;
 };
 
-#endif /* _POWERPC_SHMBUF_H */
+#endif  /* _ASM_POWERPC_SHMBUF_H */
diff --git a/include/asm-powerpc/shmparam.h b/include/asm-powerpc/shmparam.h
index d6250602ae64..5cda42a6d39e 100644
--- a/include/asm-powerpc/shmparam.h
+++ b/include/asm-powerpc/shmparam.h
@@ -1,6 +1,6 @@
-#ifndef _PPC_SHMPARAM_H
-#define _PPC_SHMPARAM_H
+#ifndef _ASM_POWERPC_SHMPARAM_H
+#define _ASM_POWERPC_SHMPARAM_H
 
 #define SHMLBA PAGE_SIZE                 /* attach addr a multiple of this */
 
-#endif /* _PPC_SHMPARAM_H */
+#endif  /* _ASM_POWERPC_SHMPARAM_H */
diff --git a/include/asm-powerpc/siginfo.h b/include/asm-powerpc/siginfo.h
index ae70b8010b19..538ea8ef509b 100644
--- a/include/asm-powerpc/siginfo.h
+++ b/include/asm-powerpc/siginfo.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_SIGINFO_H
-#define _POWERPC_SIGINFO_H
+#ifndef _ASM_POWERPC_SIGINFO_H
+#define _ASM_POWERPC_SIGINFO_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -15,4 +15,4 @@
 
 #include <asm-generic/siginfo.h>
 
-#endif /* _POWERPC_SIGINFO_H */
+#endif  /* _ASM_POWERPC_SIGINFO_H */
diff --git a/include/asm-powerpc/socket.h b/include/asm-powerpc/socket.h
index 51a0cf5ee9f0..e4b8177d4acc 100644
--- a/include/asm-powerpc/socket.h
+++ b/include/asm-powerpc/socket.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_SOCKET_H
-#define _POWERPC_SOCKET_H
+#ifndef _ASM_POWERPC_SOCKET_H
+#define _ASM_POWERPC_SOCKET_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -56,4 +56,4 @@
 
 #define SO_PEERSEC              31
 
-#endif /* _POWERPC_SOCKET_H */
+#endif  /* _ASM_POWERPC_SOCKET_H */
diff --git a/include/asm-powerpc/sockios.h b/include/asm-powerpc/sockios.h
index ef7ff664167e..590078d8ed28 100644
--- a/include/asm-powerpc/sockios.h
+++ b/include/asm-powerpc/sockios.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_SOCKIOS_H
-#define _POWERPC_SOCKIOS_H
+#ifndef _ASM_POWERPC_SOCKIOS_H
+#define _ASM_POWERPC_SOCKIOS_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -16,4 +16,4 @@
 #define SIOCATMARK      0x8905
 #define SIOCGSTAMP      0x8906          /* Get stamp */
 
-#endif /* _POWERPC_SOCKIOS_H */
+#endif  /* _ASM_POWERPC_SOCKIOS_H */
diff --git a/include/asm-powerpc/string.h b/include/asm-powerpc/string.h
index 225575997392..8606a696c088 100644
--- a/include/asm-powerpc/string.h
+++ b/include/asm-powerpc/string.h
@@ -1,5 +1,5 @@
-#ifndef _PPC_STRING_H_
-#define _PPC_STRING_H_
+#ifndef _ASM_POWERPC_STRING_H
+#define _ASM_POWERPC_STRING_H
 
 #ifdef __KERNEL__
 
@@ -29,4 +29,4 @@ extern void * memchr(const void *,int,__kernel_size_t);
 
 #endif /* __KERNEL__ */
 
-#endif
+#endif  /* _ASM_POWERPC_STRING_H */
diff --git a/include/asm-powerpc/termbits.h b/include/asm-powerpc/termbits.h
index 2c5bf85a8c3c..ebf6055481dc 100644
--- a/include/asm-powerpc/termbits.h
+++ b/include/asm-powerpc/termbits.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_TERMBITS_H
-#define _POWERPC_TERMBITS_H
+#ifndef _ASM_POWERPC_TERMBITS_H
+#define _ASM_POWERPC_TERMBITS_H
 
 /*
  * This program is free software; you can redistribute it and/or
@@ -188,4 +188,4 @@ struct termios {
 #define TCSADRAIN       1
 #define TCSAFLUSH       2
 
-#endif /* _POWERPC_TERMBITS_H */
+#endif  /* _ASM_POWERPC_TERMBITS_H */
diff --git a/include/asm-powerpc/termios.h b/include/asm-powerpc/termios.h
index 237533bb0e9f..c5b8e5358f83 100644
--- a/include/asm-powerpc/termios.h
+++ b/include/asm-powerpc/termios.h
@@ -1,5 +1,5 @@
-#ifndef _POWERPC_TERMIOS_H
-#define _POWERPC_TERMIOS_H
+#ifndef _ASM_POWERPC_TERMIOS_H
+#define _ASM_POWERPC_TERMIOS_H
 
 /*
  * Liberally adapted from alpha/termios.h.  In particular, the c_cc[]
@@ -233,4 +233,4 @@ struct termio {
 
 #endif  /* __KERNEL__ */
 
-#endif  /* _POWERPC_TERMIOS_H */
+#endif  /* _ASM_POWERPC_TERMIOS_H */
diff --git a/include/asm-ppc/timex.h b/include/asm-powerpc/timex.h
index cffc8712077c..51c5b316be55 100644
--- a/include/asm-ppc/timex.h
+++ b/include/asm-powerpc/timex.h
@@ -1,11 +1,11 @@
+#ifndef _ASM_POWERPC_TIMEX_H
+#define _ASM_POWERPC_TIMEX_H
+
+#ifdef __KERNEL__
+
 /*
- * include/asm-ppc/timex.h
- *
- * ppc architecture timex specifications
+ * PowerPC architecture timex specifications
  */
-#ifdef __KERNEL__
-#ifndef _ASMppc_TIMEX_H
-#define _ASMppc_TIMEX_H
 
 #include <linux/config.h>
 #include <asm/cputable.h>
@@ -14,14 +14,21 @@
 
 typedef unsigned long cycles_t;
 
-/*
- * For the "cycle" counter we use the timebase lower half.
- * Currently only used on SMP.
- */
-
 static inline cycles_t get_cycles(void)
 {
-        cycles_t ret = 0;
+        cycles_t ret;
+
+#ifdef __powerpc64__
+
+        __asm__ __volatile__("mftb %0" : "=r" (ret) : );
+
+#else
+        /*
+         * For the "cycle" counter we use the timebase lower half.
+         * Currently only used on SMP.
+         */
+
+        ret = 0;
 
         __asm__ __volatile__(
                 "98:    mftb %0\n"
@@ -33,8 +40,10 @@ static inline cycles_t get_cycles(void)
                 "       .long 99b\n"
                 ".previous"
                 : "=r" (ret) : "i" (CPU_FTR_601));
+#endif
+
         return ret;
 }
 
-#endif
-#endif /* __KERNEL__ */
+#endif  /* __KERNEL__ */
+#endif  /* _ASM_POWERPC_TIMEX_H */
diff --git a/include/asm-ppc64/topology.h b/include/asm-powerpc/topology.h
index 1e9b19073230..2512e3836bf4 100644
--- a/include/asm-ppc64/topology.h
+++ b/include/asm-powerpc/topology.h
@@ -1,11 +1,12 @@
-#ifndef _ASM_PPC64_TOPOLOGY_H
-#define _ASM_PPC64_TOPOLOGY_H
+#ifndef _ASM_POWERPC_TOPOLOGY_H
+#define _ASM_POWERPC_TOPOLOGY_H
 
 #include <linux/config.h>
-#include <asm/mmzone.h>
 
 #ifdef CONFIG_NUMA
 
+#include <asm/mmzone.h>
+
 static inline int cpu_to_node(int cpu)
 {
         int node;
@@ -66,4 +67,4 @@ static inline int node_to_first_cpu(int node)
 
 #endif /* CONFIG_NUMA */
 
-#endif /* _ASM_PPC64_TOPOLOGY_H */
+#endif  /* _ASM_POWERPC_TOPOLOGY_H */
diff --git a/include/asm-powerpc/unaligned.h b/include/asm-powerpc/unaligned.h
index 45520d9b85d1..6c95dfa2652f 100644
--- a/include/asm-powerpc/unaligned.h
+++ b/include/asm-powerpc/unaligned.h
@@ -1,6 +1,7 @@
+#ifndef _ASM_POWERPC_UNALIGNED_H
+#define _ASM_POWERPC_UNALIGNED_H
+
 #ifdef __KERNEL__
-#ifndef __PPC_UNALIGNED_H
-#define __PPC_UNALIGNED_H
 
 /*
  * The PowerPC can do unaligned accesses itself in big endian mode.
@@ -14,5 +15,5 @@
 
 #define put_unaligned(val, ptr) ((void)( *(ptr) = (val) ))
 
-#endif
-#endif /* __KERNEL__ */
+#endif  /* __KERNEL__ */
+#endif  /* _ASM_POWERPC_UNALIGNED_H */
diff --git a/include/asm-ppc/user.h b/include/asm-powerpc/user.h
index d662b2151370..e59ade4b3dfb 100644
--- a/include/asm-ppc/user.h
+++ b/include/asm-powerpc/user.h
@@ -1,13 +1,14 @@
-#ifdef __KERNEL__
-#ifndef _PPC_USER_H
-#define _PPC_USER_H
+#ifndef _ASM_POWERPC_USER_H
+#define _ASM_POWERPC_USER_H
 
-/* Adapted from <asm-alpha/user.h> */
+#ifdef __KERNEL__
 
-#include <linux/ptrace.h>
+#include <asm/ptrace.h>
 #include <asm/page.h>
 
 /*
+ * Adapted from <asm-alpha/user.h>
+ *
  * Core file format: The core file is written in such a way that gdb
  * can understand it and provide useful information to the user (under
  * linux we use the `trad-core' bfd, NOT the osf-core).  The file contents
@@ -50,5 +51,5 @@ struct user {
 #define HOST_DATA_START_ADDR    (u.start_data)
 #define HOST_STACK_END_ADDR     (u.start_stack + u.u_ssize * NBPG)
 
-#endif /* _PPC_USER_H */
-#endif /* __KERNEL__ */
+#endif  /* __KERNEL__ */
+#endif  /* _ASM_POWERPC_USER_H */
diff --git a/include/asm-ppc/setup.h b/include/asm-ppc/setup.h
deleted file mode 100644
index d2d19ee103df..000000000000
--- a/include/asm-ppc/setup.h
+++ /dev/null
@@ -1,14 +0,0 @@
-#ifdef __KERNEL__
-#ifndef _PPC_SETUP_H
-#define _PPC_SETUP_H
-
-#define m68k_num_memory num_memory
-#define m68k_memory memory
-
-#include <asm-m68k/setup.h>
-/* We have a bigger command line buffer. */
-#undef COMMAND_LINE_SIZE
-#define COMMAND_LINE_SIZE       512
-
-#endif /* _PPC_SETUP_H */
-#endif /* __KERNEL__ */
diff --git a/include/asm-ppc/topology.h b/include/asm-ppc/topology.h
deleted file mode 100644
index 6a029bbba6e1..000000000000
--- a/include/asm-ppc/topology.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_PPC_TOPOLOGY_H
-#define _ASM_PPC_TOPOLOGY_H
-
-#include <asm-generic/topology.h>
-
-#endif /* _ASM_PPC_TOPOLOGY_H */
diff --git a/include/asm-ppc64/msgbuf.h b/include/asm-ppc64/msgbuf.h
deleted file mode 100644
index 31c1cbf133cc..000000000000
--- a/include/asm-ppc64/msgbuf.h
+++ /dev/null
@@ -1,27 +0,0 @@
-#ifndef _PPC64_MSGBUF_H
-#define _PPC64_MSGBUF_H
-
-/* 
- * The msqid64_ds structure for the PPC architecture.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-struct msqid64_ds {
-        struct ipc64_perm msg_perm;
-        __kernel_time_t msg_stime;      /* last msgsnd time */
-        __kernel_time_t msg_rtime;      /* last msgrcv time */
-        __kernel_time_t msg_ctime;      /* last change time */
-        unsigned long  msg_cbytes;      /* current number of bytes on queue */
-        unsigned long  msg_qnum;        /* number of messages in queue */
-        unsigned long  msg_qbytes;      /* max number of bytes on queue */
-        __kernel_pid_t msg_lspid;       /* pid of last msgsnd */
-        __kernel_pid_t msg_lrpid;       /* last receive pid */
-        unsigned long  __unused1;
-        unsigned long  __unused2;
-};
-
-#endif /* _PPC64_MSGBUF_H */
diff --git a/include/asm-ppc64/param.h b/include/asm-ppc64/param.h
deleted file mode 100644
index 76c212d475b3..000000000000
--- a/include/asm-ppc64/param.h
+++ /dev/null
@@ -1,31 +0,0 @@
-#ifndef _ASM_PPC64_PARAM_H
-#define _ASM_PPC64_PARAM_H
-
-#include <linux/config.h>
-
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifdef __KERNEL__
-# define HZ             CONFIG_HZ       /* Internal kernel timer frequency */
-# define USER_HZ        100             /* .. some user interfaces are in "ticks" */
-# define CLOCKS_PER_SEC (USER_HZ)       /* like times() */
-#endif
-
-#ifndef HZ
-#define HZ 100
-#endif
-
-#define EXEC_PAGESIZE   4096
-
-#ifndef NOGROUP
-#define NOGROUP         (-1)
-#endif
-
-#define MAXHOSTNAMELEN  64      /* max length of hostname */
-
-#endif /* _ASM_PPC64_PARAM_H */
diff --git a/include/asm-ppc64/pci-bridge.h b/include/asm-ppc64/pci-bridge.h
index c4f9023ea5ed..6b4a5b1f695e 100644
--- a/include/asm-ppc64/pci-bridge.h
+++ b/include/asm-ppc64/pci-bridge.h
@@ -48,19 +48,52 @@ struct pci_controller {
         unsigned long dma_window_size;
 };
 
+/*
+ * PCI stuff, for nodes representing PCI devices, pointed to
+ * by device_node->data.
+ */
+struct pci_controller;
+struct iommu_table;
+
+struct pci_dn {
+        int     busno;                  /* for pci devices */
+        int     bussubno;               /* for pci devices */
+        int     devfn;                  /* for pci devices */
+        int     eeh_mode;               /* See eeh.h for possible EEH_MODEs */
+        int     eeh_config_addr;
+        int     eeh_capable;            /* from firmware */
+        int     eeh_check_count;        /* # times driver ignored error */
+        int     eeh_freeze_count;       /* # times this device froze up. */
+        int     eeh_is_bridge;          /* device is pci-to-pci bridge */
+
+        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  pci_dev *pcidev;        /* back-pointer to the pci device */
+        struct  device_node *node;      /* back-pointer to the device_node */
+        u32     config_space[16];       /* saved PCI config space */
+};
+
+/* Get the pointer to a device_node's pci_dn */
+#define PCI_DN(dn)      ((struct pci_dn *) (dn)->data)
+
 struct device_node *fetch_dev_dn(struct pci_dev *dev);
 
-/* Get a device_node from a pci_dev.  This code must be fast except in the case
- * where the sysdata is incorrect and needs to be fixed up (hopefully just once)
+/* Get a device_node from a pci_dev.  This code must be fast except
+ * in the case where the sysdata is incorrect and needs to be fixed
+ * up (this will only happen once).
+ * In this case the sysdata will have been inherited from a PCI host
+ * bridge or a PCI-PCI bridge further up the tree, so it will point
+ * to a valid struct pci_dn, just not the one we want.
  */
 static inline struct device_node *pci_device_to_OF_node(struct pci_dev *dev)
 {
         struct device_node *dn = dev->sysdata;
+        struct pci_dn *pdn = dn->data;
 
-        if (dn->devfn == dev->devfn && dn->busno == dev->bus->number)
+        if (pdn && pdn->devfn == dev->devfn && pdn->busno == dev->bus->number)
                 return dn;      /* fast path.  sysdata is good */
-        else
-                return fetch_dev_dn(dev);
+        return fetch_dev_dn(dev);
 }
 
 static inline struct device_node *pci_bus_to_OF_node(struct pci_bus *bus)
@@ -83,7 +116,7 @@ static inline struct pci_controller *pci_bus_to_host(struct pci_bus *bus)
         struct device_node *busdn = bus->sysdata;
 
         BUG_ON(busdn == NULL);
-        return busdn->phb;
+        return PCI_DN(busdn)->phb;
 }
 
 #endif
diff --git a/include/asm-ppc64/prom.h b/include/asm-ppc64/prom.h
index dc5330b39509..c02ec1d6b909 100644
--- a/include/asm-ppc64/prom.h
+++ b/include/asm-ppc64/prom.h
@@ -116,14 +116,6 @@ struct property {
         struct property *next;
 };
 
-/* NOTE: the device_node contains PCI specific info for pci devices.
- * This perhaps could be hung off the device_node with another struct,
- * but for now it is directly in the node.  The phb ptr is a good
- * indication of a real PCI node.  Other nodes leave these fields zeroed.
- */
-struct pci_controller;
-struct iommu_table;
-
 struct device_node {
         char    *name;
         char    *type;
@@ -135,16 +127,6 @@ struct device_node {
         struct  interrupt_info *intrs;
         char    *full_name;
 
-        /* PCI stuff probably doesn't belong here */
-        int     busno;                  /* for pci devices */
-        int     bussubno;               /* for pci devices */
-        int     devfn;                  /* for pci devices */
-        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  property *properties;
         struct  device_node *parent;
         struct  device_node *child;
@@ -154,6 +136,7 @@ struct device_node {
         struct  proc_dir_entry *pde;    /* this node's proc directory */
         struct  kref kref;
         unsigned long _flags;
+        void    *data;
 };
 
 extern struct device_node *of_chosen;
diff --git a/include/asm-ppc64/segment.h b/include/asm-ppc64/segment.h
deleted file mode 100644
index d80fb68cc79e..000000000000
--- a/include/asm-ppc64/segment.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __PPC64_SEGMENT_H
-#define __PPC64_SEGMENT_H
-
-/* Only here because we have some old header files that expect it.. */
-
-#endif /* __PPC64_SEGMENT_H */
diff --git a/include/asm-ppc64/setup.h b/include/asm-ppc64/setup.h
deleted file mode 100644
index b257b8348c73..000000000000
--- a/include/asm-ppc64/setup.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _PPC_SETUP_H
-#define _PPC_SETUP_H
-
-#define COMMAND_LINE_SIZE 512
-
-#endif /* _PPC_SETUP_H */
diff --git a/include/asm-ppc64/timex.h b/include/asm-ppc64/timex.h
deleted file mode 100644
index 8db4da4064cd..000000000000
--- a/include/asm-ppc64/timex.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * linux/include/asm-ppc/timex.h
- *
- * PPC64 architecture timex specifications
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#ifndef _ASMPPC64_TIMEX_H
-#define _ASMPPC64_TIMEX_H
-
-#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
-
-typedef unsigned long cycles_t;
-
-static inline cycles_t get_cycles(void)
-{
-        cycles_t ret;
-
-        __asm__ __volatile__("mftb %0" : "=r" (ret) : );
-        return ret;
-}
-
-#endif
diff --git a/include/asm-ppc64/user.h b/include/asm-ppc64/user.h
deleted file mode 100644
index d7d6554a421f..000000000000
--- a/include/asm-ppc64/user.h
+++ /dev/null
@@ -1,58 +0,0 @@
-#ifndef _PPC_USER_H
-#define _PPC_USER_H
-
-/* Adapted from <asm-alpha/user.h> 
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <asm/ptrace.h>
-#include <asm/page.h>
-
-/*
- * Core file format: The core file is written in such a way that gdb
- * can understand it and provide useful information to the user (under
- * linux we use the `trad-core' bfd, NOT the osf-core).  The file contents
- * are as follows:
- *
- *  upage: 1 page consisting of a user struct that tells gdb
- *      what is present in the file.  Directly after this is a
- *      copy of the task_struct, which is currently not used by gdb,
- *      but it may come in handy at some point.  All of the registers
- *      are stored as part of the upage.  The upage should always be
- *      only one page long.
- *  data: The data segment follows next.  We use current->end_text to
- *      current->brk to pick up all of the user variables, plus any memory
- *      that may have been sbrk'ed.  No attempt is made to determine if a
- *      page is demand-zero or if a page is totally unused, we just cover
- *      the entire range.  All of the addresses are rounded in such a way
- *      that an integral number of pages is written.
- *  stack: We need the stack information in order to get a meaningful
- *      backtrace.  We need to write the data from usp to
- *      current->start_stack, so we round each of these in order to be able
- *      to write an integer number of pages.
- */
-struct user {
-        struct pt_regs  regs;                   /* entire machine state */
-        size_t          u_tsize;                /* text size (pages) */
-        size_t          u_dsize;                /* data size (pages) */
-        size_t          u_ssize;                /* stack size (pages) */
-        unsigned long   start_code;             /* text starting address */
-        unsigned long   start_data;             /* data starting address */
-        unsigned long   start_stack;            /* stack starting address */
-        long int        signal;                 /* signal causing core dump */
-        struct regs *   u_ar0;                  /* help gdb find registers */
-        unsigned long   magic;                  /* identifies a core file */
-        char            u_comm[32];             /* user command name */
-};
-
-#define NBPG                    PAGE_SIZE
-#define UPAGES                  1
-#define HOST_TEXT_START_ADDR    (u.start_code)
-#define HOST_DATA_START_ADDR    (u.start_data)
-#define HOST_STACK_END_ADDR     (u.start_stack + u.u_ssize * NBPG)
-
-#endif /* _PPC_USER_H */