Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge

13 files changed, 134 insertions, 165 deletions

diff --git a/include/asm-powerpc/auxvec.h b/include/asm-powerpc/auxvec.h
index 79d8c473230..19a099b62cd 100644
--- a/include/asm-powerpc/auxvec.h
+++ b/include/asm-powerpc/auxvec.h
@@ -14,8 +14,6 @@
 /* The vDSO location. We have to use the same value as x86 for glibc's
  * sake :-)
  */
-#ifdef __powerpc64__
 #define AT_SYSINFO_EHDR		33
-#endif
 
 #endif
diff --git a/include/asm-powerpc/elf.h b/include/asm-powerpc/elf.h
index feac3458d71..3dcd65edf97 100644
--- a/include/asm-powerpc/elf.h
+++ b/include/asm-powerpc/elf.h
@@ -269,14 +269,12 @@ extern int dcache_bsize;
 extern int icache_bsize;
 extern int ucache_bsize;
 
-#ifdef __powerpc64__
+/* vDSO has arch_setup_additional_pages */
+#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
 struct linux_binprm;
-#define ARCH_HAS_SETUP_ADDITIONAL_PAGES	/* vDSO has arch_setup_additional_pages */
-extern int arch_setup_additional_pages(struct linux_binprm *bprm, int executable_stack);
+extern int arch_setup_additional_pages(struct linux_binprm *bprm,
+				       int executable_stack);
 #define VDSO_AUX_ENT(a,b) NEW_AUX_ENT(a,b);
-#else
-#define VDSO_AUX_ENT(a,b)
-#endif /* __powerpc64__ */
 
 /*
  * The requirements here are:
diff --git a/include/asm-powerpc/irq.h b/include/asm-powerpc/irq.h
index c9fbcede0ef..8eb7e857ec4 100644
--- a/include/asm-powerpc/irq.h
+++ b/include/asm-powerpc/irq.h
@@ -389,6 +389,7 @@ extern u64 ppc64_interrupt_controller;
 #define	SIU_INT_TIMER4		((uint)0x0f + CPM_IRQ_OFFSET)
 #define	SIU_INT_TMCNT		((uint)0x10 + CPM_IRQ_OFFSET)
 #define	SIU_INT_PIT		((uint)0x11 + CPM_IRQ_OFFSET)
+#define	SIU_INT_PCI		((uint)0x12 + CPM_IRQ_OFFSET)
 #define	SIU_INT_IRQ1		((uint)0x13 + CPM_IRQ_OFFSET)
 #define	SIU_INT_IRQ2		((uint)0x14 + CPM_IRQ_OFFSET)
 #define	SIU_INT_IRQ3		((uint)0x15 + CPM_IRQ_OFFSET)
diff --git a/include/asm-powerpc/processor.h b/include/asm-powerpc/processor.h
index f6f186b56b0..d12382d292d 100644
--- a/include/asm-powerpc/processor.h
+++ b/include/asm-powerpc/processor.h
@@ -177,8 +177,8 @@ struct thread_struct {
 #ifdef CONFIG_PPC64
 	unsigned long	start_tb;	/* Start purr when proc switched in */
 	unsigned long	accum_tb;	/* Total accumilated purr for process */
-	unsigned long	vdso_base;	/* base of the vDSO library */
 #endif
+	unsigned long	vdso_base;	/* base of the vDSO library */
 	unsigned long	dabr;		/* Data address breakpoint register */
 #ifdef CONFIG_ALTIVEC
 	/* Complete AltiVec register set */
diff --git a/include/asm-powerpc/sparsemem.h b/include/asm-powerpc/sparsemem.h
index 58d2aab416f..ba1b34fdb96 100644
--- a/include/asm-powerpc/sparsemem.h
+++ b/include/asm-powerpc/sparsemem.h
@@ -8,8 +8,8 @@
  * MAX_PHYSMEM_BITS		2^N: how much memory we can have in that space
  */
 #define SECTION_SIZE_BITS       24
-#define MAX_PHYSADDR_BITS       38
-#define MAX_PHYSMEM_BITS        36
+#define MAX_PHYSADDR_BITS       44
+#define MAX_PHYSMEM_BITS        44
 
 #ifdef CONFIG_MEMORY_HOTPLUG
 extern void create_section_mapping(unsigned long start, unsigned long end);
diff --git a/include/asm-powerpc/systemcfg.h b/include/asm-powerpc/systemcfg.h
deleted file mode 100644
index 36b5cbe466f..00000000000
--- a/include/asm-powerpc/systemcfg.h
+++ /dev/null
@@ -1,64 +0,0 @@
-#ifndef _SYSTEMCFG_H
-#define _SYSTEMCFG_H
-
-/*
- * Copyright (C) 2002 Peter Bergner <bergner@vnet.ibm.com>, IBM
- *
- * 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.
- */
-
-/* Change Activity:
- * 2002/09/30 : bergner  : Created
- * End Change Activity
- */
-
-/*
- * If the major version changes we are incompatible.
- * Minor version changes are a hint.
- */
-#define SYSTEMCFG_MAJOR 1
-#define SYSTEMCFG_MINOR 1
-
-#ifndef __ASSEMBLY__
-
-#include <linux/unistd.h>
-
-#define SYSCALL_MAP_SIZE      ((__NR_syscalls + 31) / 32)
-
-struct systemcfg {
-	__u8  eye_catcher[16];		/* Eyecatcher: SYSTEMCFG:PPC64	0x00 */
-	struct {			/* Systemcfg version numbers	     */
-		__u32 major;		/* Major number			0x10 */
-		__u32 minor;		/* Minor number			0x14 */
-	} version;
-
-	__u32 platform;			/* Platform flags		0x18 */
-	__u32 processor;		/* Processor type		0x1C */
-	__u64 processorCount;		/* # of physical processors	0x20 */
-	__u64 physicalMemorySize;	/* Size of real memory(B)	0x28 */
-	__u64 tb_orig_stamp;		/* Timebase at boot		0x30 */
-	__u64 tb_ticks_per_sec;		/* Timebase tics / sec		0x38 */
-	__u64 tb_to_xs;			/* Inverse of TB to 2^20	0x40 */
-	__u64 stamp_xsec;		/*				0x48 */
-	__u64 tb_update_count;		/* Timebase atomicity ctr	0x50 */
-	__u32 tz_minuteswest;		/* Minutes west of Greenwich	0x58 */
-	__u32 tz_dsttime;		/* Type of dst correction	0x5C */
-	/* next four are no longer used except to be exported to /proc */
-	__u32 dcache_size;		/* L1 d-cache size		0x60 */
-	__u32 dcache_line_size;		/* L1 d-cache line size		0x64 */
-	__u32 icache_size;		/* L1 i-cache size		0x68 */
-	__u32 icache_line_size;		/* L1 i-cache line size		0x6C */
-   	__u32 syscall_map_64[SYSCALL_MAP_SIZE]; /* map of available syscalls 0x70 */
-   	__u32 syscall_map_32[SYSCALL_MAP_SIZE]; /* map of available syscalls */
-};
-
-#ifdef __KERNEL__
-extern struct systemcfg *_systemcfg; /* to be renamed */
-#endif
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* _SYSTEMCFG_H */
diff --git a/include/asm-powerpc/topology.h b/include/asm-powerpc/topology.h
index 2512e3836bf..015d28746e1 100644
--- a/include/asm-powerpc/topology.h
+++ b/include/asm-powerpc/topology.h
@@ -9,15 +9,7 @@
 
 static inline int cpu_to_node(int cpu)
 {
-	int node;
-
-	node = numa_cpu_lookup_table[cpu];
-
-#ifdef DEBUG_NUMA
-	BUG_ON(node == -1);
-#endif
-
-	return node;
+	return numa_cpu_lookup_table[cpu];
 }
 
 #define parent_node(node)	(node)
@@ -37,8 +29,6 @@ static inline int node_to_first_cpu(int node)
 #define pcibus_to_node(node)    (-1)
 #define pcibus_to_cpumask(bus)	(cpu_online_map)
 
-#define nr_cpus_node(node)	(nr_cpus_in_node[node])
-
 /* sched_domains SD_NODE_INIT for PPC64 machines */
 #define SD_NODE_INIT (struct sched_domain) {		\
 	.span			= CPU_MASK_NONE,	\
diff --git a/include/asm-ppc64/udbg.h b/include/asm-powerpc/udbg.h
index e3b92799185..a383383bc4d 100644
--- a/include/asm-ppc64/udbg.h
+++ b/include/asm-powerpc/udbg.h
@@ -1,9 +1,3 @@
-#ifndef __UDBG_HDR
-#define __UDBG_HDR
-
-#include <linux/compiler.h>
-#include <linux/init.h>
-
 /*
  * c 2001 PPC 64 Team, IBM Corp
  *
@@ -13,6 +7,12 @@
  * 2 of the License, or (at your option) any later version.
  */
 
+#ifndef _ASM_POWERPC_UDBG_H
+#define _ASM_POWERPC_UDBG_H
+
+#include <linux/compiler.h>
+#include <linux/init.h>
+
 extern void (*udbg_putc)(unsigned char c);
 extern unsigned char (*udbg_getc)(void);
 extern int (*udbg_getc_poll)(void);
@@ -28,4 +28,4 @@ extern void udbg_init_uart(void __iomem *comport, unsigned int speed);
 
 struct device_node;
 extern void udbg_init_scc(struct device_node *np);
-#endif
+#endif /* _ASM_POWERPC_UDBG_H */
diff --git a/include/asm-ppc64/vdso.h b/include/asm-powerpc/vdso.h
index 85d8a7be25c..85d8a7be25c 100644
--- a/include/asm-ppc64/vdso.h
+++ b/include/asm-powerpc/vdso.h
diff --git a/include/asm-powerpc/vdso_datapage.h b/include/asm-powerpc/vdso_datapage.h
new file mode 100644
index 00000000000..fc323b51366
--- /dev/null
+++ b/include/asm-powerpc/vdso_datapage.h
@@ -0,0 +1,108 @@
+#ifndef _VDSO_DATAPAGE_H
+#define _VDSO_DATAPAGE_H
+
+/*
+ * Copyright (C) 2002 Peter Bergner <bergner@vnet.ibm.com>, IBM
+ * Copyright (C) 2005 Benjamin Herrenschmidy <benh@kernel.crashing.org>,
+ * 		      IBM Corp.
+ *
+ * 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.
+ */
+
+
+/*
+ * Note about this structure:
+ *
+ * This structure was historically called systemcfg and exposed to
+ * userland via /proc/ppc64/systemcfg. Unfortunately, this became an
+ * ABI issue as some proprietary software started relying on being able
+ * to mmap() it, thus we have to keep the base layout at least for a
+ * few kernel versions.
+ *
+ * However, since ppc32 doesn't suffer from this backward handicap,
+ * a simpler version of the data structure is used there with only the
+ * fields actually used by the vDSO.
+ *
+ */
+
+/*
+ * If the major version changes we are incompatible.
+ * Minor version changes are a hint.
+ */
+#define SYSTEMCFG_MAJOR 1
+#define SYSTEMCFG_MINOR 1
+
+#ifndef __ASSEMBLY__
+
+#include <linux/unistd.h>
+
+#define SYSCALL_MAP_SIZE      ((__NR_syscalls + 31) / 32)
+
+/*
+ * So here is the ppc64 backward compatible version
+ */
+
+#ifdef CONFIG_PPC64
+
+struct vdso_data {
+	__u8  eye_catcher[16];		/* Eyecatcher: SYSTEMCFG:PPC64	0x00 */
+	struct {			/* Systemcfg version numbers	     */
+		__u32 major;		/* Major number			0x10 */
+		__u32 minor;		/* Minor number			0x14 */
+	} version;
+
+	__u32 platform;			/* Platform flags		0x18 */
+	__u32 processor;		/* Processor type		0x1C */
+	__u64 processorCount;		/* # of physical processors	0x20 */
+	__u64 physicalMemorySize;	/* Size of real memory(B)	0x28 */
+	__u64 tb_orig_stamp;		/* Timebase at boot		0x30 */
+	__u64 tb_ticks_per_sec;		/* Timebase tics / sec		0x38 */
+	__u64 tb_to_xs;			/* Inverse of TB to 2^20	0x40 */
+	__u64 stamp_xsec;		/*				0x48 */
+	__u64 tb_update_count;		/* Timebase atomicity ctr	0x50 */
+	__u32 tz_minuteswest;		/* Minutes west of Greenwich	0x58 */
+	__u32 tz_dsttime;		/* Type of dst correction	0x5C */
+	__u32 dcache_size;		/* L1 d-cache size		0x60 */
+	__u32 dcache_line_size;		/* L1 d-cache line size		0x64 */
+	__u32 icache_size;		/* L1 i-cache size		0x68 */
+	__u32 icache_line_size;		/* L1 i-cache line size		0x6C */
+
+	/* those additional ones don't have to be located anywhere
+	 * special as they were not part of the original systemcfg
+	 */
+	__s64 wtom_clock_sec;			/* Wall to monotonic clock */
+	__s32 wtom_clock_nsec;
+   	__u32 syscall_map_64[SYSCALL_MAP_SIZE]; /* map of syscalls  */
+   	__u32 syscall_map_32[SYSCALL_MAP_SIZE]; /* map of syscalls */
+};
+
+#else /* CONFIG_PPC64 */
+
+/*
+ * And here is the simpler 32 bits version
+ */
+struct vdso_data {
+	__u64 tb_orig_stamp;		/* Timebase at boot		0x30 */
+	__u64 tb_ticks_per_sec;		/* Timebase tics / sec		0x38 */
+	__u64 tb_to_xs;			/* Inverse of TB to 2^20	0x40 */
+	__u64 stamp_xsec;		/*				0x48 */
+	__u32 tb_update_count;		/* Timebase atomicity ctr	0x50 */
+	__u32 tz_minuteswest;		/* Minutes west of Greenwich	0x58 */
+	__u32 tz_dsttime;		/* Type of dst correction	0x5C */
+	__s32 wtom_clock_sec;			/* Wall to monotonic clock */
+	__s32 wtom_clock_nsec;
+   	__u32 syscall_map_32[SYSCALL_MAP_SIZE]; /* map of syscalls */
+};
+
+#endif /* CONFIG_PPC64 */
+
+#ifdef __KERNEL__
+extern struct vdso_data *vdso_data;
+#endif
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _SYSTEMCFG_H */
diff --git a/include/asm-ppc/page.h b/include/asm-ppc/page.h
index fc44f7ca62d..538e0c8ab24 100644
--- a/include/asm-ppc/page.h
+++ b/include/asm-ppc/page.h
@@ -1,9 +1,12 @@
 #ifndef _PPC_PAGE_H
 #define _PPC_PAGE_H
 
+#include <linux/config.h>
+#include <asm/asm-compat.h>
+
 /* PAGE_SHIFT determines the page size */
 #define PAGE_SHIFT	12
-#define PAGE_SIZE	(1UL << PAGE_SHIFT)
+#define PAGE_SIZE	(ASM_CONST(1) << PAGE_SHIFT)
 
 /*
  * Subtle: this is an int (not an unsigned long) and so it
@@ -169,5 +172,8 @@ extern __inline__ int get_order(unsigned long size)
 #define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
 				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
 
+/* We do define AT_SYSINFO_EHDR but don't use the gate mecanism */
+#define __HAVE_ARCH_GATE_AREA		1
+
 #endif /* __KERNEL__ */
 #endif /* _PPC_PAGE_H */
diff --git a/include/asm-ppc64/mmzone.h b/include/asm-ppc64/mmzone.h
index 15e777ce0f4..54958d6cae0 100644
--- a/include/asm-ppc64/mmzone.h
+++ b/include/asm-ppc64/mmzone.h
@@ -8,15 +8,14 @@
 #define _ASM_MMZONE_H_
 
 #include <linux/config.h>
-#include <asm/smp.h>
 
-/* generic non-linear memory support:
+/*
+ * generic non-linear memory support:
  *
  * 1) we will not split memory into more chunks than will fit into the
  *    flags field of the struct page
  */
 
-
 #ifdef CONFIG_NEED_MULTIPLE_NODES
 
 extern struct pglist_data *node_data[];
@@ -30,44 +29,11 @@ extern struct pglist_data *node_data[];
  */
 
 extern int numa_cpu_lookup_table[];
-extern char *numa_memory_lookup_table;
 extern cpumask_t numa_cpumask_lookup_table[];
-extern int nr_cpus_in_node[];
 #ifdef CONFIG_MEMORY_HOTPLUG
 extern unsigned long max_pfn;
 #endif
 
-/* 16MB regions */
-#define MEMORY_INCREMENT_SHIFT 24
-#define MEMORY_INCREMENT (1UL << MEMORY_INCREMENT_SHIFT)
-
-/* NUMA debugging, will not work on a DLPAR machine */
-#undef DEBUG_NUMA
-
-static inline int pa_to_nid(unsigned long pa)
-{
-	int nid;
-
-#ifdef CONFIG_MEMORY_HOTPLUG
-	/* kludge hot added sections default to node 0 */
-	if (pa >= (max_pfn << PAGE_SHIFT))
-		return 0;
-#endif
-	nid = numa_memory_lookup_table[pa >> MEMORY_INCREMENT_SHIFT];
-
-#ifdef DEBUG_NUMA
-	/* the physical address passed in is not in the map for the system */
-	if (nid == -1) {
-		printk("bad address: %lx\n", pa);
-		BUG();
-	}
-#endif
-
-	return nid;
-}
-
-#define node_localnr(pfn, nid)	((pfn) - NODE_DATA(nid)->node_start_pfn)
-
 /*
  * Following are macros that each numa implmentation must define.
  */
@@ -75,39 +41,10 @@ static inline int pa_to_nid(unsigned long pa)
 #define node_start_pfn(nid)	(NODE_DATA(nid)->node_start_pfn)
 #define node_end_pfn(nid)	(NODE_DATA(nid)->node_end_pfn)
 
-#ifdef CONFIG_DISCONTIGMEM
-
-/*
- * Given a kernel address, find the home node of the underlying memory.
- */
-#define kvaddr_to_nid(kaddr)	pa_to_nid(__pa(kaddr))
-
-#define pfn_to_nid(pfn)		pa_to_nid((unsigned long)(pfn) << PAGE_SHIFT)
-
-/* Written this way to avoid evaluating arguments twice */
-#define discontigmem_pfn_to_page(pfn) \
-({ \
-	unsigned long __tmp = pfn; \
-	(NODE_DATA(pfn_to_nid(__tmp))->node_mem_map + \
-	 node_localnr(__tmp, pfn_to_nid(__tmp))); \
-})
-
-#define discontigmem_page_to_pfn(p) \
-({ \
-	struct page *__tmp = p; \
-	(((__tmp) - page_zone(__tmp)->zone_mem_map) + \
-	 page_zone(__tmp)->zone_start_pfn); \
-})
-
-/* XXX fix for discontiguous physical memory */
-#define discontigmem_pfn_valid(pfn)		((pfn) < num_physpages)
-
-#endif /* CONFIG_DISCONTIGMEM */
-
 #endif /* CONFIG_NEED_MULTIPLE_NODES */
 
 #ifdef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
-#define early_pfn_to_nid(pfn)  pa_to_nid(((unsigned long)pfn) << PAGE_SHIFT)
+extern int __init early_pfn_to_nid(unsigned long pfn);
 #endif
 
 #endif /* _ASM_MMZONE_H_ */
diff --git a/include/asm-ppc64/page.h b/include/asm-ppc64/page.h
index e32f1187aa2..3efc3288f7e 100644
--- a/include/asm-ppc64/page.h
+++ b/include/asm-ppc64/page.h
@@ -279,11 +279,6 @@ extern u64 ppc64_pft_size;		/* Log 2 of page table size */
 
 #define __va(x) ((void *)((unsigned long)(x) + KERNELBASE))
 
-#ifdef CONFIG_DISCONTIGMEM
-#define page_to_pfn(page)	discontigmem_page_to_pfn(page)
-#define pfn_to_page(pfn)	discontigmem_pfn_to_page(pfn)
-#define pfn_valid(pfn)		discontigmem_pfn_valid(pfn)
-#endif
 #ifdef CONFIG_FLATMEM
 #define pfn_to_page(pfn)	(mem_map + (pfn))
 #define page_to_pfn(page)	((unsigned long)((page) - mem_map))