powerpc: Get 64-bit configs to compile with ARCH=powerpc

This is a bunch of mostly small fixes that are needed to get
ARCH=powerpc to compile for 64-bit.  This adds setup_64.c from
arch/ppc64/kernel/setup.c and locks.c from arch/ppc64/lib/locks.c.

Signed-off-by: Paul Mackerras <paulus@samba.org>

6 files changed, 85 insertions, 27 deletions

diff --git a/include/asm-powerpc/hardirq.h b/include/asm-powerpc/hardirq.h
index 2c0a31b..3b3e3b4 100644
--- a/include/asm-powerpc/hardirq.h
+++ b/include/asm-powerpc/hardirq.h
@@ -1,6 +1,9 @@
 #ifndef _ASM_POWERPC_HARDIRQ_H
 #define _ASM_POWERPC_HARDIRQ_H
 
+#include <asm/irq.h>
+#include <asm/bug.h>
+
 /* The __last_jiffy_stamp field is needed to ensure that no decrementer
  * interrupt is lost on SMP machines. Since on most CPUs it is in the same
  * cache line as local_irq_count, it is cheap to access and is also used on UP
diff --git a/include/asm-powerpc/hw_irq.h b/include/asm-powerpc/hw_irq.h
index 605a65e..c37b31b 100644
--- a/include/asm-powerpc/hw_irq.h
+++ b/include/asm-powerpc/hw_irq.h
@@ -10,7 +10,6 @@
 #include <linux/errno.h>
 #include <asm/ptrace.h>
 #include <asm/processor.h>
-#include <asm/irq.h>
 
 extern void timer_interrupt(struct pt_regs *);
 extern void ppc_irq_dispatch_handler(struct pt_regs *regs, int irq);
diff --git a/include/asm-powerpc/ppc_asm.h b/include/asm-powerpc/ppc_asm.h
index 6cd52c1..e4350e4 100644
--- a/include/asm-powerpc/ppc_asm.h
+++ b/include/asm-powerpc/ppc_asm.h
@@ -1,10 +1,12 @@
 /*
  * Copyright (C) 1995-1999 Gary Thomas, Paul Mackerras, Cort Dougan.
  */
-
 #ifndef _ASM_POWERPC_PPC_ASM_H
 #define _ASM_POWERPC_PPC_ASM_H
 
+#include <linux/stringify.h>
+#include <linux/config.h>
+
 #ifdef __ASSEMBLY__
 
 /*
@@ -87,6 +89,66 @@
 #define RFDI		.long 0x4c00004e	/* rfdi instruction */
 #define RFMCI		.long 0x4c00004c	/* rfmci instruction */
 
+#ifdef CONFIG_PPC64
+
+#define XGLUE(a,b) a##b
+#define GLUE(a,b) XGLUE(a,b)
+
+#define _GLOBAL(name) \
+	.section ".text"; \
+	.align 2 ; \
+	.globl name; \
+	.globl GLUE(.,name); \
+	.section ".opd","aw"; \
+name: \
+	.quad GLUE(.,name); \
+	.quad .TOC.@tocbase; \
+	.quad 0; \
+	.previous; \
+	.type GLUE(.,name),@function; \
+GLUE(.,name):
+
+#define _KPROBE(name) \
+	.section ".kprobes.text","a"; \
+	.align 2 ; \
+	.globl name; \
+	.globl GLUE(.,name); \
+	.section ".opd","aw"; \
+name: \
+	.quad GLUE(.,name); \
+	.quad .TOC.@tocbase; \
+	.quad 0; \
+	.previous; \
+	.type GLUE(.,name),@function; \
+GLUE(.,name):
+
+#define _STATIC(name) \
+	.section ".text"; \
+	.align 2 ; \
+	.section ".opd","aw"; \
+name: \
+	.quad GLUE(.,name); \
+	.quad .TOC.@tocbase; \
+	.quad 0; \
+	.previous; \
+	.type GLUE(.,name),@function; \
+GLUE(.,name):
+
+#else /* 32-bit */
+
+#define _GLOBAL(n)	\
+	.text;		\
+	.stabs __stringify(n:F-1),N_FUN,0,0,n;\
+	.globl n;	\
+n:
+
+#define _KPROBE(n)	\
+	.section ".kprobes.text","a";	\
+	.globl	n;	\
+n:
+
+#endif
+
 /* 
  * LOADADDR( rn, name )
  *   loads the address of 'name' into 'rn'
@@ -251,31 +313,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601)
 	.previous
 #endif
 
-/*
- * On 64-bit cpus, we use the rfid instruction instead of rfi, but
- * we then have to make sure we preserve the top 32 bits except for
- * the 64-bit mode bit, which we clear.
- */
-#if defined(CONFIG_PPC64BRIDGE)
-#define	FIX_SRR1(ra, rb)	\
-	mr	rb,ra;		\
-	mfmsr	ra;		\
-	clrldi	ra,ra,1;		/* turn off 64-bit mode */ \
-	rldimi	ra,rb,0,32
-#define	RFI		.long	0x4c000024	/* rfid instruction */
-#define MTMSRD(r)	.long	(0x7c000164 + ((r) << 21))	/* mtmsrd */
-#define CLR_TOP32(r)	rlwinm	(r),(r),0,0,31	/* clear top 32 bits */
-#elif defined(CONFIG_PPC64)
-/* Insert the high 32 bits of the MSR into what will be the new
-   MSR (via SRR1 and rfid)  This preserves the MSR.SF and MSR.ISF
-   bits. */
-
-#define FIX_SRR1(ra, rb)	\
-	mr	rb,ra;		\
-	mfmsr	ra;		\
-	rldimi	ra,rb,0,32
-
-#define CLR_TOP32(r)	rlwinm	(r),(r),0,0,31	/* clear top 32 bits */
+#ifdef CONFIG_PPC64
+#define RFI		rfid
+#define MTMSRD(r)	mtmsrd	r
 
 #else
 #define FIX_SRR1(ra, rb)
diff --git a/include/asm-powerpc/prom.h b/include/asm-powerpc/prom.h
index 194b56e..efc4098 100644
--- a/include/asm-powerpc/prom.h
+++ b/include/asm-powerpc/prom.h
@@ -196,6 +196,7 @@ extern int prom_n_intr_cells(struct device_node* np);
 extern void prom_get_irq_senses(unsigned char *senses, int off, int max);
 extern void prom_add_property(struct device_node* np, struct property* prop);
 
+#ifdef CONFIG_PPC32
 /*
  * PCI <-> OF matching functions
  * (XXX should these be here?)
@@ -207,6 +208,8 @@ extern int pci_device_from_OF_node(struct device_node *node,
 extern struct device_node* pci_busdev_to_OF_node(struct pci_bus *, int);
 extern struct device_node* pci_device_to_OF_node(struct pci_dev *);
 extern void pci_create_OF_bus_map(void);
+#endif
+
 extern struct resource *request_OF_resource(struct device_node* node,
 				int index, const char* name_postfix);
 extern int release_OF_resource(struct device_node* node, int index);
diff --git a/include/asm-powerpc/system.h b/include/asm-powerpc/system.h
index 66866f7..6463453 100644
--- a/include/asm-powerpc/system.h
+++ b/include/asm-powerpc/system.h
@@ -9,6 +9,7 @@
 
 #include <asm/hw_irq.h>
 #include <asm/ppc_asm.h>
+#include <asm/atomic.h>
 
 /*
  * Memory barrier.
@@ -127,6 +128,7 @@ extern void flush_fp_to_thread(struct task_struct *);
 extern void enable_kernel_altivec(void);
 extern void giveup_altivec(struct task_struct *);
 extern void load_up_altivec(struct task_struct *);
+extern int emulate_altivec(struct pt_regs *);
 extern void giveup_spe(struct task_struct *);
 extern void load_up_spe(struct task_struct *);
 extern int fix_alignment(struct pt_regs *);
@@ -176,6 +178,7 @@ extern struct task_struct *_switch(struct thread_struct *prev,
 				   struct thread_struct *next);
 
 extern unsigned int rtas_data;
+extern int mem_init_done;	/* set on boot once kmalloc can be called */
 
 /*
  * Atomic exchange
diff --git a/include/asm-ppc64/pci-bridge.h b/include/asm-ppc64/pci-bridge.h
index 8ca5fce..c342c9e 100644
--- a/include/asm-ppc64/pci-bridge.h
+++ b/include/asm-ppc64/pci-bridge.h
@@ -106,6 +106,16 @@ static inline struct device_node *pci_device_to_OF_node(struct pci_dev *dev)
 	return fetch_dev_dn(dev);
 }
 
+static inline int pci_device_from_OF_node(struct device_node *np,
+					  u8 *bus, u8 *devfn)
+{
+	if (!PCI_DN(np))
+		return -ENODEV;
+	*bus = PCI_DN(np)->busno;
+	*devfn = PCI_DN(np)->devfn;
+	return 0;
+}
+
 static inline struct device_node *pci_bus_to_OF_node(struct pci_bus *bus)
 {
 	if (bus->self)