ppc64: Use merged versions of init_task.c and process.c.

These two files are now built in arch/powerpc/kernel instead of
arch/ppc64/kernel.
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/kernel/Makefile

@@ -42,7 +42,7 @@ endif
 
 else
 # stuff used from here for ARCH=ppc or ARCH=ppc64
-obj-$(CONFIG_PPC64)		+= traps.o
+obj-$(CONFIG_PPC64)		+= traps.o process.o init_task.o
 
 fpux-$(CONFIG_PPC32)		+= fpu.o
 extra-$(CONFIG_PPC_FPU)		+= $(fpux-y)

arch/ppc64/kernel/Makefile

@@ -8,10 +8,10 @@ EXTRA_CFLAGS	+= -mno-minimal-toc
 extra-y		:= head.o vmlinux.lds
 
 obj-y               :=	setup.o entry.o irq.o idle.o dma.o \
-			time.o process.o signal.o syscalls.o misc.o ptrace.o \
+			time.o signal.o syscalls.o misc.o ptrace.o \
 			align.o bitops.o pacaData.o \
 			udbg.o binfmt_elf32.o sys_ppc32.o ioctl32.o \
-			ptrace32.o signal32.o rtc.o init_task.o \
+			ptrace32.o signal32.o rtc.o \
 			cputable.o cpu_setup_power4.o \
 			iommu.o sysfs.o vdso.o pmc.o firmware.o prom.o
 obj-y += vdso32/ vdso64/

arch/ppc64/kernel/init_task.c

-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/init_task.h>
-#include <linux/fs.h>
-#include <linux/mqueue.h>
-#include <asm/uaccess.h>
-
-static struct fs_struct init_fs = INIT_FS;
-static struct files_struct init_files = INIT_FILES;
-static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
-static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
-struct mm_struct init_mm = INIT_MM(init_mm);
-
-EXPORT_SYMBOL(init_mm);
-
-/*
- * Initial thread structure.
- *
- * We need to make sure that this is 16384-byte aligned due to the
- * way process stacks are handled. This is done by having a special
- * "init_task" linker map entry..
- */
-union thread_union init_thread_union 
-	__attribute__((__section__(".data.init_task"))) =
-		{ INIT_THREAD_INFO(init_task) };
-
-/*
- * Initial task structure.
- *
- * All other task structs will be allocated on slabs in fork.c
- */
-struct task_struct init_task = INIT_TASK(init_task);
-
-EXPORT_SYMBOL(init_task);

include/asm-ppc64/system.h

@@ -131,6 +131,10 @@ static inline void flush_altivec_to_thread(struct task_struct *t)
 }
 #endif
 
+static inline void flush_spe_to_thread(struct task_struct *t)
+{
+}
+
 extern int mem_init_done;	/* set on boot once kmalloc can be called */
 
 /* EBCDIC -> ASCII conversion for [0-9A-Z] on iSeries */