Merge x86-64 update from Andi

22 files changed, 86 insertions, 323 deletions

diff --git a/include/asm-x86_64/apic.h b/include/asm-x86_64/apic.h
index 6c5d5ca..5647b7d 100644
--- a/include/asm-x86_64/apic.h
+++ b/include/asm-x86_64/apic.h
@@ -111,6 +111,8 @@ extern unsigned int nmi_watchdog;
 
 extern int disable_timer_pin_1;
 
+extern void setup_threshold_lvt(unsigned long lvt_off);
+
 #endif /* CONFIG_X86_LOCAL_APIC */
 
 extern unsigned boot_cpu_id;
diff --git a/include/asm-x86_64/cache.h b/include/asm-x86_64/cache.h
index eda62ba..33e5342 100644
--- a/include/asm-x86_64/cache.h
+++ b/include/asm-x86_64/cache.h
@@ -9,6 +9,6 @@
 /* L1 cache line size */
 #define L1_CACHE_SHIFT	(CONFIG_X86_L1_CACHE_SHIFT)
 #define L1_CACHE_BYTES	(1 << L1_CACHE_SHIFT)
-#define L1_CACHE_SHIFT_MAX 6	/* largest L1 which this arch supports */
+#define L1_CACHE_SHIFT_MAX 7	/* largest L1 which this arch supports */
 
 #endif
diff --git a/include/asm-x86_64/desc.h b/include/asm-x86_64/desc.h
index b837820..3376486 100644
--- a/include/asm-x86_64/desc.h
+++ b/include/asm-x86_64/desc.h
@@ -98,16 +98,19 @@ static inline void _set_gate(void *adr, unsigned type, unsigned long func, unsig
 
 static inline void set_intr_gate(int nr, void *func) 
 { 
+	BUG_ON((unsigned)nr > 0xFF);
 	_set_gate(&idt_table[nr], GATE_INTERRUPT, (unsigned long) func, 0, 0); 
 } 
 
 static inline void set_intr_gate_ist(int nr, void *func, unsigned ist) 
 { 
+	BUG_ON((unsigned)nr > 0xFF);
 	_set_gate(&idt_table[nr], GATE_INTERRUPT, (unsigned long) func, 0, ist); 
 } 
 
 static inline void set_system_gate(int nr, void *func) 
 { 
+	BUG_ON((unsigned)nr > 0xFF);
 	_set_gate(&idt_table[nr], GATE_INTERRUPT, (unsigned long) func, 3, 0); 
 } 
 
diff --git a/include/asm-x86_64/dma.h b/include/asm-x86_64/dma.h
index 16fa3a0..6f2a817 100644
--- a/include/asm-x86_64/dma.h
+++ b/include/asm-x86_64/dma.h
@@ -72,8 +72,15 @@
 
 #define MAX_DMA_CHANNELS	8
 
-/* The maximum address that we can perform a DMA transfer to on this platform */
-#define MAX_DMA_ADDRESS      (PAGE_OFFSET+0x1000000)
+
+/* 16MB ISA DMA zone */
+#define MAX_DMA_PFN   ((16*1024*1024) >> PAGE_SHIFT)
+
+/* 4GB broken PCI/AGP hardware bus master zone */
+#define MAX_DMA32_PFN ((4UL*1024*1024*1024) >> PAGE_SHIFT)
+
+/* Compat define for old dma zone */
+#define MAX_DMA_ADDRESS ((unsigned long)__va(MAX_DMA_PFN << PAGE_SHIFT))
 
 /* 8237 DMA controllers */
 #define IO_DMA1_BASE	0x00	/* 8 bit slave DMA, channels 0..3 */
diff --git a/include/asm-x86_64/hpet.h b/include/asm-x86_64/hpet.h
index a3877f5..c20c28f 100644
--- a/include/asm-x86_64/hpet.h
+++ b/include/asm-x86_64/hpet.h
@@ -14,18 +14,18 @@
 #define HPET_CFG	0x010
 #define HPET_STATUS	0x020
 #define HPET_COUNTER	0x0f0
-#define HPET_T0_CFG	0x100
-#define HPET_T0_CMP	0x108
-#define HPET_T0_ROUTE	0x110
-#define HPET_T1_CFG	0x120
-#define HPET_T1_CMP	0x128
-#define HPET_T1_ROUTE	0x130
-#define HPET_T2_CFG	0x140
-#define HPET_T2_CMP	0x148
-#define HPET_T2_ROUTE	0x150
+#define HPET_Tn_OFFSET	0x20
+#define HPET_Tn_CFG(n)	 (0x100 + (n) * HPET_Tn_OFFSET)
+#define HPET_Tn_ROUTE(n) (0x104 + (n) * HPET_Tn_OFFSET)
+#define HPET_Tn_CMP(n)	 (0x108 + (n) * HPET_Tn_OFFSET)
+#define HPET_T0_CFG	HPET_Tn_CFG(0)
+#define HPET_T0_CMP	HPET_Tn_CMP(0)
+#define HPET_T1_CFG	HPET_Tn_CFG(1)
+#define HPET_T1_CMP	HPET_Tn_CMP(1)
 
 #define HPET_ID_VENDOR	0xffff0000
 #define HPET_ID_LEGSUP	0x00008000
+#define HPET_ID_64BIT	0x00002000
 #define HPET_ID_NUMBER	0x00001f00
 #define HPET_ID_REV	0x000000ff
 #define	HPET_ID_NUMBER_SHIFT	8
@@ -38,11 +38,18 @@
 #define	HPET_LEGACY_8254	2
 #define	HPET_LEGACY_RTC		8
 
-#define HPET_TN_ENABLE		0x004
-#define HPET_TN_PERIODIC	0x008
-#define HPET_TN_PERIODIC_CAP	0x010
-#define HPET_TN_SETVAL		0x040
-#define HPET_TN_32BIT		0x100
+#define HPET_TN_LEVEL		0x0002
+#define HPET_TN_ENABLE		0x0004
+#define HPET_TN_PERIODIC	0x0008
+#define HPET_TN_PERIODIC_CAP	0x0010
+#define HPET_TN_64BIT_CAP	0x0020
+#define HPET_TN_SETVAL		0x0040
+#define HPET_TN_32BIT		0x0100
+#define HPET_TN_ROUTE		0x3e00
+#define HPET_TN_FSB		0x4000
+#define HPET_TN_FSB_CAP		0x8000
+
+#define HPET_TN_ROUTE_SHIFT	9
 
 extern int is_hpet_enabled(void);
 extern int hpet_rtc_timer_init(void);
diff --git a/include/asm-x86_64/hw_irq.h b/include/asm-x86_64/hw_irq.h
index dc97668..c14a8c7 100644
--- a/include/asm-x86_64/hw_irq.h
+++ b/include/asm-x86_64/hw_irq.h
@@ -55,7 +55,7 @@ struct hw_interrupt_type;
 #define CALL_FUNCTION_VECTOR	0xfc
 #define KDB_VECTOR		0xfb	/* reserved for KDB */
 #define THERMAL_APIC_VECTOR	0xfa
-/* 0xf9 free */
+#define THRESHOLD_APIC_VECTOR   0xf9
 #define INVALIDATE_TLB_VECTOR_END	0xf8
 #define INVALIDATE_TLB_VECTOR_START	0xf0	/* f0-f8 used for TLB flush */
 
diff --git a/include/asm-x86_64/ia32.h b/include/asm-x86_64/ia32.h
index 6efa00f..c7bc9c0 100644
--- a/include/asm-x86_64/ia32.h
+++ b/include/asm-x86_64/ia32.h
@@ -165,6 +165,11 @@ struct siginfo_t;
 int do_get_thread_area(struct thread_struct *t, struct user_desc __user *info);
 int do_set_thread_area(struct thread_struct *t, struct user_desc __user *info);
 int ia32_child_tls(struct task_struct *p, struct pt_regs *childregs);
+
+struct linux_binprm;
+extern int ia32_setup_arg_pages(struct linux_binprm *bprm,
+				unsigned long stack_top, int exec_stack);
+
 #endif
 
 #endif /* !CONFIG_IA32_SUPPORT */
diff --git a/include/asm-x86_64/mce.h b/include/asm-x86_64/mce.h
index 869249d..5d298b7 100644
--- a/include/asm-x86_64/mce.h
+++ b/include/asm-x86_64/mce.h
@@ -67,6 +67,8 @@ struct mce_log {
 /* Software defined banks */
 #define MCE_EXTENDED_BANK	128
 #define MCE_THERMAL_BANK	MCE_EXTENDED_BANK + 0
+#define MCE_THRESHOLD_BASE      MCE_EXTENDED_BANK + 1 /* MCE_AMD */
+#define MCE_THRESHOLD_DRAM_ECC  MCE_THRESHOLD_BASE + 4
 
 void mce_log(struct mce *m);
 #ifdef CONFIG_X86_MCE_INTEL
@@ -77,4 +79,12 @@ static inline void mce_intel_feature_init(struct cpuinfo_x86 *c)
 }
 #endif
 
+#ifdef CONFIG_X86_MCE_AMD
+void mce_amd_feature_init(struct cpuinfo_x86 *c);
+#else
+static inline void mce_amd_feature_init(struct cpuinfo_x86 *c)
+{
+}
+#endif
+
 #endif
diff --git a/include/asm-x86_64/mmzone.h b/include/asm-x86_64/mmzone.h
index b40c661..69baaa8 100644
--- a/include/asm-x86_64/mmzone.h
+++ b/include/asm-x86_64/mmzone.h
@@ -17,16 +17,15 @@
 /* Simple perfect hash to map physical addresses to node numbers */
 extern int memnode_shift; 
 extern u8  memnodemap[NODEMAPSIZE]; 
-extern int maxnode;
 
 extern struct pglist_data *node_data[];
 
 static inline __attribute__((pure)) int phys_to_nid(unsigned long addr) 
 { 
-	int nid; 
+	unsigned nid; 
 	VIRTUAL_BUG_ON((addr >> memnode_shift) >= NODEMAPSIZE);
 	nid = memnodemap[addr >> memnode_shift]; 
-	VIRTUAL_BUG_ON(nid > maxnode); 
+	VIRTUAL_BUG_ON(nid >= MAX_NUMNODES || !node_data[nid]); 
 	return nid; 
 } 
 
@@ -41,9 +40,7 @@ static inline __attribute__((pure)) int phys_to_nid(unsigned long addr)
 #define pfn_to_nid(pfn) phys_to_nid((unsigned long)(pfn) << PAGE_SHIFT)
 #define kvaddr_to_nid(kaddr)	phys_to_nid(__pa(kaddr))
 
-/* AK: this currently doesn't deal with invalid addresses. We'll see 
-   if the 2.5 kernel doesn't pass them
-   (2.4 used to). */
+/* Requires pfn_valid(pfn) to be true */
 #define pfn_to_page(pfn) ({ \
 	int nid = phys_to_nid(((unsigned long)(pfn)) << PAGE_SHIFT); 	\
 	((pfn) - node_start_pfn(nid)) + NODE_DATA(nid)->node_mem_map;	\
diff --git a/include/asm-x86_64/mpspec.h b/include/asm-x86_64/mpspec.h
index f267e10..6f8a17d 100644
--- a/include/asm-x86_64/mpspec.h
+++ b/include/asm-x86_64/mpspec.h
@@ -16,7 +16,7 @@
 /*
  * A maximum of 255 APICs with the current APIC ID architecture.
  */
-#define MAX_APICS 128
+#define MAX_APICS 255
 
 struct intel_mp_floating
 {
@@ -157,7 +157,8 @@ struct mpc_config_lintsrc
  */
 
 #define MAX_MP_BUSSES 256
-#define MAX_IRQ_SOURCES 256
+/* Each PCI slot may be a combo card with its own bus.  4 IRQ pins per slot. */
+#define MAX_IRQ_SOURCES (MAX_MP_BUSSES * 4)
 enum mp_bustype {
 	MP_BUS_ISA = 1,
 	MP_BUS_EISA,
@@ -172,7 +173,7 @@ extern int smp_found_config;
 extern void find_smp_config (void);
 extern void get_smp_config (void);
 extern int nr_ioapics;
-extern int apic_version [MAX_APICS];
+extern unsigned char apic_version [MAX_APICS];
 extern int mp_irq_entries;
 extern struct mpc_config_intsrc mp_irqs [MAX_IRQ_SOURCES];
 extern int mpc_default_type;
diff --git a/include/asm-x86_64/msr.h b/include/asm-x86_64/msr.h
index 5a7fe3c..24dc396 100644
--- a/include/asm-x86_64/msr.h
+++ b/include/asm-x86_64/msr.h
@@ -19,7 +19,7 @@
 			    : "=a" (a__), "=d" (b__) \
 			    : "c" (msr)); \
        val = a__ | (b__<<32); \
-} while(0); 
+} while(0)
 
 #define wrmsr(msr,val1,val2) \
      __asm__ __volatile__("wrmsr" \
diff --git a/include/asm-x86_64/numa.h b/include/asm-x86_64/numa.h
index bcf55c3..d51e56f 100644
--- a/include/asm-x86_64/numa.h
+++ b/include/asm-x86_64/numa.h
@@ -17,6 +17,8 @@ extern void numa_add_cpu(int cpu);
 extern void numa_init_array(void);
 extern int numa_off;
 
+extern void numa_set_node(int cpu, int node);
+
 extern unsigned char apicid_to_node[256];
 
 #define NUMA_NO_NODE 0xff
diff --git a/include/asm-x86_64/page.h b/include/asm-x86_64/page.h
index e5ab4d2..06e489f 100644
--- a/include/asm-x86_64/page.h
+++ b/include/asm-x86_64/page.h
@@ -11,7 +11,7 @@
 #define PAGE_SIZE	(1UL << PAGE_SHIFT)
 #endif
 #define PAGE_MASK	(~(PAGE_SIZE-1))
-#define PHYSICAL_PAGE_MASK	(~(PAGE_SIZE-1) & (__PHYSICAL_MASK << PAGE_SHIFT))
+#define PHYSICAL_PAGE_MASK	(~(PAGE_SIZE-1) & __PHYSICAL_MASK)
 
 #define THREAD_ORDER 1 
 #ifdef __ASSEMBLY__
diff --git a/include/asm-x86_64/pda.h b/include/asm-x86_64/pda.h
index bbf89aa..8733ccf 100644
--- a/include/asm-x86_64/pda.h
+++ b/include/asm-x86_64/pda.h
@@ -15,6 +15,7 @@ struct x8664_pda {
         int irqcount;		    /* Irq nesting counter. Starts with -1 */  	
 	int cpunumber;		    /* Logical CPU number */
 	char *irqstackptr;	/* top of irqstack */
+	int nodenumber;		    /* number of current node */
 	unsigned int __softirq_pending;
 	unsigned int __nmi_count;	/* number of NMI on this CPUs */
 	struct mm_struct *active_mm;
diff --git a/include/asm-x86_64/pgtable.h b/include/asm-x86_64/pgtable.h
index 7309fff..ecf58c7 100644
--- a/include/asm-x86_64/pgtable.h
+++ b/include/asm-x86_64/pgtable.h
@@ -16,6 +16,7 @@ extern pud_t level3_physmem_pgt[512];
 extern pud_t level3_ident_pgt[512];
 extern pmd_t level2_kernel_pgt[512];
 extern pgd_t init_level4_pgt[];
+extern pgd_t boot_level4_pgt[];
 extern unsigned long __supported_pte_mask;
 
 #define swapper_pg_dir init_level4_pgt
@@ -247,7 +248,7 @@ static inline unsigned long pud_bad(pud_t pud)
 #define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT))	/* FIXME: is this
 						   right? */
 #define pte_page(x)	pfn_to_page(pte_pfn(x))
-#define pte_pfn(x)  ((pte_val(x) >> PAGE_SHIFT) & __PHYSICAL_MASK)
+#define pte_pfn(x)  ((pte_val(x) & __PHYSICAL_MASK) >> PAGE_SHIFT)
 
 static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot)
 {
@@ -354,7 +355,7 @@ static inline pud_t *__pud_offset_k(pud_t *pud, unsigned long address)
 #define pmd_clear(xp)	do { set_pmd(xp, __pmd(0)); } while (0)
 #define	pmd_bad(x)	((pmd_val(x) & (~PTE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE )
 #define pfn_pmd(nr,prot) (__pmd(((nr) << PAGE_SHIFT) | pgprot_val(prot)))
-#define pmd_pfn(x)  ((pmd_val(x) >> PAGE_SHIFT) & __PHYSICAL_MASK)
+#define pmd_pfn(x)  ((pmd_val(x) & __PHYSICAL_MASK) >> PAGE_SHIFT)
 
 #define pte_to_pgoff(pte) ((pte_val(pte) & PHYSICAL_PAGE_MASK) >> PAGE_SHIFT)
 #define pgoff_to_pte(off) ((pte_t) { ((off) << PAGE_SHIFT) | _PAGE_FILE })
diff --git a/include/asm-x86_64/processor.h b/include/asm-x86_64/processor.h
index 03837d3..4861246 100644
--- a/include/asm-x86_64/processor.h
+++ b/include/asm-x86_64/processor.h
@@ -61,10 +61,12 @@ struct cpuinfo_x86 {
 	int	x86_cache_alignment;
 	int	x86_tlbsize;	/* number of 4K pages in DTLB/ITLB combined(in pages)*/
         __u8    x86_virt_bits, x86_phys_bits;
-	__u8	x86_num_cores;
+	__u8	x86_max_cores;	/* cpuid returned max cores value */
         __u32   x86_power; 	
 	__u32   extended_cpuid_level;	/* Max extended CPUID function supported */
 	unsigned long loops_per_jiffy;
+	__u8	apicid;
+	__u8	booted_cores;	/* number of cores as seen by OS */
 } ____cacheline_aligned;
 
 #define X86_VENDOR_INTEL 0
diff --git a/include/asm-x86_64/proto.h b/include/asm-x86_64/proto.h
index dbb37b0..3450108 100644
--- a/include/asm-x86_64/proto.h
+++ b/include/asm-x86_64/proto.h
@@ -11,6 +11,8 @@ struct pt_regs;
 extern void start_kernel(void);
 extern void pda_init(int); 
 
+extern void zap_low_mappings(int cpu);
+
 extern void early_idt_handler(void);
 
 extern void mcheck_init(struct cpuinfo_x86 *c);
@@ -22,6 +24,8 @@ extern void mtrr_bp_init(void);
 #define mtrr_bp_init() do {} while (0)
 #endif
 extern void init_memory_mapping(unsigned long start, unsigned long end);
+extern void size_zones(unsigned long *z, unsigned long *h,
+			unsigned long start_pfn, unsigned long end_pfn);
 
 extern void system_call(void); 
 extern int kernel_syscall(void);
diff --git a/include/asm-x86_64/rwsem.h b/include/asm-x86_64/rwsem.h
deleted file mode 100644
index 46077e9..0000000
--- a/include/asm-x86_64/rwsem.h
+++ /dev/null
@@ -1,283 +0,0 @@
-/* rwsem.h: R/W semaphores implemented using XADD/CMPXCHG for x86_64+
- *
- * Written by David Howells (dhowells@redhat.com).
- * Ported by Andi Kleen <ak@suse.de> to x86-64.
- *
- * Derived from asm-i386/semaphore.h and asm-i386/rwsem.h
- *
- *
- * The MSW of the count is the negated number of active writers and waiting
- * lockers, and the LSW is the total number of active locks
- *
- * The lock count is initialized to 0 (no active and no waiting lockers).
- *
- * When a writer subtracts WRITE_BIAS, it'll get 0xffff0001 for the case of an
- * uncontended lock. This can be determined because XADD returns the old value.
- * Readers increment by 1 and see a positive value when uncontended, negative
- * if there are writers (and maybe) readers waiting (in which case it goes to
- * sleep).
- *
- * The value of WAITING_BIAS supports up to 32766 waiting processes. This can
- * be extended to 65534 by manually checking the whole MSW rather than relying
- * on the S flag.
- *
- * The value of ACTIVE_BIAS supports up to 65535 active processes.
- *
- * This should be totally fair - if anything is waiting, a process that wants a
- * lock will go to the back of the queue. When the currently active lock is
- * released, if there's a writer at the front of the queue, then that and only
- * that will be woken up; if there's a bunch of consecutive readers at the
- * front, then they'll all be woken up, but no other readers will be.
- */
-
-#ifndef _X8664_RWSEM_H
-#define _X8664_RWSEM_H
-
-#ifndef _LINUX_RWSEM_H
-#error "please don't include asm/rwsem.h directly, use linux/rwsem.h instead"
-#endif
-
-#ifdef __KERNEL__
-
-#include <linux/list.h>
-#include <linux/spinlock.h>
-
-struct rwsem_waiter;
-
-extern struct rw_semaphore *rwsem_down_read_failed(struct rw_semaphore *sem);
-extern struct rw_semaphore *rwsem_down_write_failed(struct rw_semaphore *sem);
-extern struct rw_semaphore *rwsem_wake(struct rw_semaphore *);
-extern struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem);
-
-/*
- * the semaphore definition
- */
-struct rw_semaphore {
-	signed int		count;
-#define RWSEM_UNLOCKED_VALUE		0x00000000
-#define RWSEM_ACTIVE_BIAS		0x00000001
-#define RWSEM_ACTIVE_MASK		0x0000ffff
-#define RWSEM_WAITING_BIAS		(-0x00010000)
-#define RWSEM_ACTIVE_READ_BIAS		RWSEM_ACTIVE_BIAS
-#define RWSEM_ACTIVE_WRITE_BIAS		(RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)
-	spinlock_t		wait_lock;
-	struct list_head	wait_list;
-#if RWSEM_DEBUG
-	int			debug;
-#endif
-};
-
-/*
- * initialisation
- */
-#if RWSEM_DEBUG
-#define __RWSEM_DEBUG_INIT      , 0
-#else
-#define __RWSEM_DEBUG_INIT	/* */
-#endif
-
-#define __RWSEM_INITIALIZER(name) \
-{ RWSEM_UNLOCKED_VALUE, SPIN_LOCK_UNLOCKED, LIST_HEAD_INIT((name).wait_list) \
-	__RWSEM_DEBUG_INIT }
-
-#define DECLARE_RWSEM(name) \
-	struct rw_semaphore name = __RWSEM_INITIALIZER(name)
-
-static inline void init_rwsem(struct rw_semaphore *sem)
-{
-	sem->count = RWSEM_UNLOCKED_VALUE;
-	spin_lock_init(&sem->wait_lock);
-	INIT_LIST_HEAD(&sem->wait_list);
-#if RWSEM_DEBUG
-	sem->debug = 0;
-#endif
-}
-
-/*
- * lock for reading
- */
-static inline void __down_read(struct rw_semaphore *sem)
-{
-	__asm__ __volatile__(
-		"# beginning down_read\n\t"
-LOCK_PREFIX	"  incl      (%%rdi)\n\t" /* adds 0x00000001, returns the old value */
-		"  js        2f\n\t" /* jump if we weren't granted the lock */
-		"1:\n\t"
-		LOCK_SECTION_START("") \
-		"2:\n\t"
-		"  call      rwsem_down_read_failed_thunk\n\t"
-		"  jmp       1b\n"
-		LOCK_SECTION_END \
-		"# ending down_read\n\t"
-		: "+m"(sem->count)
-		: "D"(sem)
-		: "memory", "cc");
-}
-
-
-/*
- * trylock for reading -- returns 1 if successful, 0 if contention
- */
-static inline int __down_read_trylock(struct rw_semaphore *sem)
-{
-	__s32 result, tmp;
-	__asm__ __volatile__(
-		"# beginning __down_read_trylock\n\t"
-		"  movl      %0,%1\n\t"
-		"1:\n\t"
-		"  movl	     %1,%2\n\t"
-		"  addl      %3,%2\n\t"
-		"  jle	     2f\n\t"
-LOCK_PREFIX	"  cmpxchgl  %2,%0\n\t"
-		"  jnz	     1b\n\t"
-		"2:\n\t"
-		"# ending __down_read_trylock\n\t"
-		: "+m"(sem->count), "=&a"(result), "=&r"(tmp)
-		: "i"(RWSEM_ACTIVE_READ_BIAS)
-		: "memory", "cc");
-	return result>=0 ? 1 : 0;
-}
-
-
-/*
- * lock for writing
- */
-static inline void __down_write(struct rw_semaphore *sem)
-{
-	int tmp;
-
-	tmp = RWSEM_ACTIVE_WRITE_BIAS;
-	__asm__ __volatile__(
-		"# beginning down_write\n\t"
-LOCK_PREFIX	"  xaddl      %0,(%%rdi)\n\t" /* subtract 0x0000ffff, returns the old value */
-		"  testl     %0,%0\n\t" /* was the count 0 before? */
-		"  jnz       2f\n\t" /* jump if we weren't granted the lock */
-		"1:\n\t"
-		LOCK_SECTION_START("")
-		"2:\n\t"
-		"  call      rwsem_down_write_failed_thunk\n\t"
-		"  jmp       1b\n"
-		LOCK_SECTION_END
-		"# ending down_write"
-		: "=&r" (tmp) 
-		: "0"(tmp), "D"(sem)
-		: "memory", "cc");
-}
-
-/*
- * trylock for writing -- returns 1 if successful, 0 if contention
- */
-static inline int __down_write_trylock(struct rw_semaphore *sem)
-{
-	signed long ret = cmpxchg(&sem->count,
-				  RWSEM_UNLOCKED_VALUE, 
-				  RWSEM_ACTIVE_WRITE_BIAS);
-	if (ret == RWSEM_UNLOCKED_VALUE)
-		return 1;
-	return 0;
-}
-
-/*
- * unlock after reading
- */
-static inline void __up_read(struct rw_semaphore *sem)
-{
-	__s32 tmp = -RWSEM_ACTIVE_READ_BIAS;
-	__asm__ __volatile__(
-		"# beginning __up_read\n\t"
-LOCK_PREFIX	"  xaddl      %[tmp],(%%rdi)\n\t" /* subtracts 1, returns the old value */
-		"  js        2f\n\t" /* jump if the lock is being waited upon */
-		"1:\n\t"
-		LOCK_SECTION_START("")
-		"2:\n\t"
-		"  decw      %w[tmp]\n\t" /* do nothing if still outstanding active readers */
-		"  jnz       1b\n\t"
-		"  call      rwsem_wake_thunk\n\t"
-		"  jmp       1b\n"
-		LOCK_SECTION_END
-		"# ending __up_read\n"
-		: "+m"(sem->count), [tmp] "+r" (tmp)
-		: "D"(sem)
-		: "memory", "cc");
-}
-
-/*
- * unlock after writing
- */
-static inline void __up_write(struct rw_semaphore *sem)
-{
-	unsigned tmp; 
-	__asm__ __volatile__(
-		"# beginning __up_write\n\t"
-		"  movl     %[bias],%[tmp]\n\t"
-LOCK_PREFIX	"  xaddl     %[tmp],(%%rdi)\n\t" /* tries to transition 0xffff0001 -> 0x00000000 */
-		"  jnz       2f\n\t" /* jump if the lock is being waited upon */
-		"1:\n\t"
-		LOCK_SECTION_START("")
-		"2:\n\t"
-		"  decw      %w[tmp]\n\t" /* did the active count reduce to 0? */
-		"  jnz       1b\n\t" /* jump back if not */
-		"  call      rwsem_wake_thunk\n\t"
-		"  jmp       1b\n"
-		LOCK_SECTION_END
-		"# ending __up_write\n"
-		: "+m"(sem->count), [tmp] "=r" (tmp)
-		: "D"(sem), [bias] "i"(-RWSEM_ACTIVE_WRITE_BIAS)
-		: "memory", "cc");
-}
-
-/*
- * downgrade write lock to read lock
- */
-static inline void __downgrade_write(struct rw_semaphore *sem)
-{
-	__asm__ __volatile__(
-		"# beginning __downgrade_write\n\t"
-LOCK_PREFIX	"  addl      %[bias],(%%rdi)\n\t" /* transitions 0xZZZZ0001 -> 0xYYYY0001 */
-		"  js        2f\n\t" /* jump if the lock is being waited upon */
-		"1:\n\t"
-		LOCK_SECTION_START("")
-		"2:\n\t"
-		"  call	     rwsem_downgrade_thunk\n"
-		"  jmp       1b\n"
-		LOCK_SECTION_END
-		"# ending __downgrade_write\n"
-		: "=m"(sem->count)
-		: "D"(sem), [bias] "i"(-RWSEM_WAITING_BIAS), "m"(sem->count)
-		: "memory", "cc");
-}
-
-/*
- * implement atomic add functionality
- */
-static inline void rwsem_atomic_add(int delta, struct rw_semaphore *sem)
-{
-	__asm__ __volatile__(
-LOCK_PREFIX	"addl %1,%0"
-		:"=m"(sem->count)
-		:"ir"(delta), "m"(sem->count));
-}
-
-/*
- * implement exchange and add functionality
- */
-static inline int rwsem_atomic_update(int delta, struct rw_semaphore *sem)
-{
-	int tmp = delta;
-
-	__asm__ __volatile__(
-LOCK_PREFIX	"xaddl %0,(%2)"
-		: "=r"(tmp), "=m"(sem->count)
-		: "r"(sem), "m"(sem->count), "0" (tmp)
-		: "memory");
-
-	return tmp+delta;
-}
-
-static inline int rwsem_is_locked(struct rw_semaphore *sem)
-{
-	return (sem->count != 0);
-}
-
-#endif /* __KERNEL__ */
-#endif /* _X8664_RWSEM_H */
diff --git a/include/asm-x86_64/smp.h b/include/asm-x86_64/smp.h
index b9fb217..d030409 100644
--- a/include/asm-x86_64/smp.h
+++ b/include/asm-x86_64/smp.h
@@ -47,7 +47,6 @@ extern void lock_ipi_call_lock(void);
 extern void unlock_ipi_call_lock(void);
 extern int smp_num_siblings;
 extern void smp_send_reschedule(int cpu);
-extern void zap_low_mappings(void);
 void smp_stop_cpu(void);
 extern int smp_call_function_single(int cpuid, void (*func) (void *info),
 				void *info, int retry, int wait);
@@ -82,6 +81,8 @@ extern int safe_smp_processor_id(void);
 extern int __cpu_disable(void);
 extern void __cpu_die(unsigned int cpu);
 extern void prefill_possible_map(void);
+extern unsigned num_processors;
+extern unsigned disabled_cpus;
 
 #endif /* !ASSEMBLY */
 
diff --git a/include/asm-x86_64/spinlock.h b/include/asm-x86_64/spinlock.h
index 6963683..fe484a6 100644
--- a/include/asm-x86_64/spinlock.h
+++ b/include/asm-x86_64/spinlock.h
@@ -18,22 +18,22 @@
  */
 
 #define __raw_spin_is_locked(x) \
-		(*(volatile signed char *)(&(x)->slock) <= 0)
+		(*(volatile signed int *)(&(x)->slock) <= 0)
 
 #define __raw_spin_lock_string \
 	"\n1:\t" \
-	"lock ; decb %0\n\t" \
+	"lock ; decl %0\n\t" \
 	"js 2f\n" \
 	LOCK_SECTION_START("") \
 	"2:\t" \
 	"rep;nop\n\t" \
-	"cmpb $0,%0\n\t" \
+	"cmpl $0,%0\n\t" \
 	"jle 2b\n\t" \
 	"jmp 1b\n" \
 	LOCK_SECTION_END
 
 #define __raw_spin_unlock_string \
-	"movb $1,%0" \
+	"movl $1,%0" \
 		:"=m" (lock->slock) : : "memory"
 
 static inline void __raw_spin_lock(raw_spinlock_t *lock)
@@ -47,10 +47,10 @@ static inline void __raw_spin_lock(raw_spinlock_t *lock)
 
 static inline int __raw_spin_trylock(raw_spinlock_t *lock)
 {
-	char oldval;
+	int oldval;
 
 	__asm__ __volatile__(
-		"xchgb %b0,%1"
+		"xchgl %0,%1"
 		:"=q" (oldval), "=m" (lock->slock)
 		:"0" (0) : "memory");
 
diff --git a/include/asm-x86_64/topology.h b/include/asm-x86_64/topology.h
index 1c603cd..d39ebd5 100644
--- a/include/asm-x86_64/topology.h
+++ b/include/asm-x86_64/topology.h
@@ -28,6 +28,8 @@ extern int __node_distance(int, int);
 #define pcibus_to_node(bus)		((long)(bus->sysdata))	
 #define pcibus_to_cpumask(bus)		node_to_cpumask(pcibus_to_node(bus));
 
+#define numa_node_id()			read_pda(nodenumber)
+
 /* sched_domains SD_NODE_INIT for x86_64 machines */
 #define SD_NODE_INIT (struct sched_domain) {		\
 	.span			= CPU_MASK_NONE,	\
diff --git a/include/asm-x86_64/unistd.h b/include/asm-x86_64/unistd.h
index 3c494b6..2c42150 100644
--- a/include/asm-x86_64/unistd.h
+++ b/include/asm-x86_64/unistd.h
@@ -462,7 +462,7 @@ __SYSCALL(__NR_fremovexattr, sys_fremovexattr)
 #define __NR_tkill	200
 __SYSCALL(__NR_tkill, sys_tkill) 
 #define __NR_time      201
-__SYSCALL(__NR_time, sys_time64)
+__SYSCALL(__NR_time, sys_time)
 #define __NR_futex     202
 __SYSCALL(__NR_futex, sys_futex)
 #define __NR_sched_setaffinity    203
@@ -608,6 +608,7 @@ do { \
 #define __ARCH_WANT_SYS_SIGPENDING
 #define __ARCH_WANT_SYS_SIGPROCMASK
 #define __ARCH_WANT_SYS_RT_SIGACTION
+#define __ARCH_WANT_SYS_TIME
 #define __ARCH_WANT_COMPAT_SYS_TIME
 #endif