Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

16 files changed, 106 insertions, 183 deletions

diff --git a/include/asm-x86_64/acpi.h b/include/asm-x86_64/acpi.h
index 9d1916e59c0..a29f05087a3 100644
--- a/include/asm-x86_64/acpi.h
+++ b/include/asm-x86_64/acpi.h
@@ -37,7 +37,7 @@
  * Calling conventions:
  *
  * ACPI_SYSTEM_XFACE        - Interfaces to host OS (handlers, threads)
- * ACPI_EXTERNAL_XFACE      - External ACPI interfaces 
+ * ACPI_EXTERNAL_XFACE      - External ACPI interfaces
  * ACPI_INTERNAL_XFACE      - Internal ACPI interfaces
  * ACPI_INTERNAL_VAR_XFACE  - Internal variable-parameter list interfaces
  */
@@ -54,36 +54,14 @@
 #define ACPI_ENABLE_IRQS()  local_irq_enable()
 #define ACPI_FLUSH_CPU_CACHE()	wbinvd()
 
+int __acpi_acquire_global_lock(unsigned int *lock);
+int __acpi_release_global_lock(unsigned int *lock);
 
-static inline int
-__acpi_acquire_global_lock (unsigned int *lock)
-{
-	unsigned int old, new, val;
-	do {
-		old = *lock;
-		new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1));
-		val = cmpxchg(lock, old, new);
-	} while (unlikely (val != old));
-	return (new < 3) ? -1 : 0;
-}
-
-static inline int
-__acpi_release_global_lock (unsigned int *lock)
-{
-	unsigned int old, new, val;
-	do {
-		old = *lock;
-		new = old & ~0x3;
-		val = cmpxchg(lock, old, new);
-	} while (unlikely (val != old));
-	return old & 0x1;
-}
+#define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
+	((Acq) = __acpi_acquire_global_lock(&facs->global_lock))
 
-#define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) \
-	((Acq) = __acpi_acquire_global_lock((unsigned int *) GLptr))
-
-#define ACPI_RELEASE_GLOBAL_LOCK(GLptr, Acq) \
-	((Acq) = __acpi_release_global_lock((unsigned int *) GLptr))
+#define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
+	((Acq) = __acpi_release_global_lock(&facs->global_lock))
 
 /*
  * Math helper asm macros
@@ -109,10 +87,10 @@ extern int acpi_strict;
 extern int acpi_disabled;
 extern int acpi_pci_disabled;
 extern int acpi_ht;
-static inline void disable_acpi(void) 
-{ 
-	acpi_disabled = 1; 
-	acpi_ht = 0; 
+static inline void disable_acpi(void)
+{
+	acpi_disabled = 1;
+	acpi_ht = 0;
 	acpi_pci_disabled = 1;
 	acpi_noirq = 1;
 }
@@ -122,9 +100,9 @@ static inline void disable_acpi(void)
 
 extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq);
 static inline void acpi_noirq_set(void) { acpi_noirq = 1; }
-static inline void acpi_disable_pci(void) 
+static inline void acpi_disable_pci(void)
 {
-	acpi_pci_disabled = 1; 
+	acpi_pci_disabled = 1;
 	acpi_noirq_set();
 }
 extern int acpi_irq_balance_set(char *str);
@@ -158,8 +136,6 @@ extern void acpi_reserve_bootmem(void);
 extern int acpi_disabled;
 extern int acpi_pci_disabled;
 
-extern u8 x86_acpiid_to_apicid[];
-
 #define ARCH_HAS_POWER_INIT 1
 
 extern int acpi_skip_timer_override;
diff --git a/include/asm-x86_64/bitops.h b/include/asm-x86_64/bitops.h
index 5b535eaf530..8da9609070f 100644
--- a/include/asm-x86_64/bitops.h
+++ b/include/asm-x86_64/bitops.h
@@ -7,7 +7,13 @@
 
 #include <asm/alternative.h>
 
-#define ADDR (*(volatile long *) addr)
+#if __GNUC__ < 4 || __GNUC_MINOR__ < 1
+/* Technically wrong, but this avoids compilation errors on some gcc
+   versions. */
+#define ADDR "=m" (*(volatile long *) addr)
+#else
+#define ADDR "+m" (*(volatile long *) addr)
+#endif
 
 /**
  * set_bit - Atomically set a bit in memory
@@ -23,7 +29,7 @@ static __inline__ void set_bit(int nr, volatile void * addr)
 {
 	__asm__ __volatile__( LOCK_PREFIX
 		"btsl %1,%0"
-		:"+m" (ADDR)
+		:ADDR
 		:"dIr" (nr) : "memory");
 }
 
@@ -40,7 +46,7 @@ static __inline__ void __set_bit(int nr, volatile void * addr)
 {
 	__asm__ volatile(
 		"btsl %1,%0"
-		:"+m" (ADDR)
+		:ADDR
 		:"dIr" (nr) : "memory");
 }
 
@@ -58,7 +64,7 @@ static __inline__ void clear_bit(int nr, volatile void * addr)
 {
 	__asm__ __volatile__( LOCK_PREFIX
 		"btrl %1,%0"
-		:"+m" (ADDR)
+		:ADDR
 		:"dIr" (nr));
 }
 
@@ -66,7 +72,7 @@ static __inline__ void __clear_bit(int nr, volatile void * addr)
 {
 	__asm__ __volatile__(
 		"btrl %1,%0"
-		:"+m" (ADDR)
+		:ADDR
 		:"dIr" (nr));
 }
 
@@ -86,7 +92,7 @@ static __inline__ void __change_bit(int nr, volatile void * addr)
 {
 	__asm__ __volatile__(
 		"btcl %1,%0"
-		:"+m" (ADDR)
+		:ADDR
 		:"dIr" (nr));
 }
 
@@ -103,7 +109,7 @@ static __inline__ void change_bit(int nr, volatile void * addr)
 {
 	__asm__ __volatile__( LOCK_PREFIX
 		"btcl %1,%0"
-		:"+m" (ADDR)
+		:ADDR
 		:"dIr" (nr));
 }
 
@@ -121,7 +127,7 @@ static __inline__ int test_and_set_bit(int nr, volatile void * addr)
 
 	__asm__ __volatile__( LOCK_PREFIX
 		"btsl %2,%1\n\tsbbl %0,%0"
-		:"=r" (oldbit),"+m" (ADDR)
+		:"=r" (oldbit),ADDR
 		:"dIr" (nr) : "memory");
 	return oldbit;
 }
@@ -141,7 +147,7 @@ static __inline__ int __test_and_set_bit(int nr, volatile void * addr)
 
 	__asm__(
 		"btsl %2,%1\n\tsbbl %0,%0"
-		:"=r" (oldbit),"+m" (ADDR)
+		:"=r" (oldbit),ADDR
 		:"dIr" (nr));
 	return oldbit;
 }
@@ -160,7 +166,7 @@ static __inline__ int test_and_clear_bit(int nr, volatile void * addr)
 
 	__asm__ __volatile__( LOCK_PREFIX
 		"btrl %2,%1\n\tsbbl %0,%0"
-		:"=r" (oldbit),"+m" (ADDR)
+		:"=r" (oldbit),ADDR
 		:"dIr" (nr) : "memory");
 	return oldbit;
 }
@@ -180,7 +186,7 @@ static __inline__ int __test_and_clear_bit(int nr, volatile void * addr)
 
 	__asm__(
 		"btrl %2,%1\n\tsbbl %0,%0"
-		:"=r" (oldbit),"+m" (ADDR)
+		:"=r" (oldbit),ADDR
 		:"dIr" (nr));
 	return oldbit;
 }
@@ -192,7 +198,7 @@ static __inline__ int __test_and_change_bit(int nr, volatile void * addr)
 
 	__asm__ __volatile__(
 		"btcl %2,%1\n\tsbbl %0,%0"
-		:"=r" (oldbit),"+m" (ADDR)
+		:"=r" (oldbit),ADDR
 		:"dIr" (nr) : "memory");
 	return oldbit;
 }
@@ -211,7 +217,7 @@ static __inline__ int test_and_change_bit(int nr, volatile void * addr)
 
 	__asm__ __volatile__( LOCK_PREFIX
 		"btcl %2,%1\n\tsbbl %0,%0"
-		:"=r" (oldbit),"+m" (ADDR)
+		:"=r" (oldbit),ADDR
 		:"dIr" (nr) : "memory");
 	return oldbit;
 }
@@ -237,7 +243,7 @@ static __inline__ int variable_test_bit(int nr, volatile const void * addr)
 	__asm__ __volatile__(
 		"btl %2,%1\n\tsbbl %0,%0"
 		:"=r" (oldbit)
-		:"m" (ADDR),"dIr" (nr));
+		:"m" (*(volatile long *)addr),"dIr" (nr));
 	return oldbit;
 }
 
diff --git a/include/asm-x86_64/bug.h b/include/asm-x86_64/bug.h
index 80ac1fe966a..68260641491 100644
--- a/include/asm-x86_64/bug.h
+++ b/include/asm-x86_64/bug.h
@@ -1,30 +1,30 @@
 #ifndef __ASM_X8664_BUG_H
 #define __ASM_X8664_BUG_H 1
 
-#include <linux/stringify.h>
-
-/*
- * Tell the user there is some problem.  The exception handler decodes 
- * this frame.
- */
-struct bug_frame {
-	unsigned char ud2[2];
-	unsigned char push;
-	signed int filename;
-	unsigned char ret;
-	unsigned short line;
-} __attribute__((packed));
-
 #ifdef CONFIG_BUG
 #define HAVE_ARCH_BUG
-/* We turn the bug frame into valid instructions to not confuse
-   the disassembler. Thanks to Jan Beulich & Suresh Siddha
-   for nice instruction selection.
-   The magic numbers generate mov $64bitimm,%eax ; ret $offset. */
-#define BUG() 								\
-	asm volatile(							\
-	"ud2 ; pushq $%c1 ; ret $%c0" :: 				\
-		     "i"(__LINE__), "i" (__FILE__))
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+#define BUG()								\
+	do {								\
+		asm volatile("1:\tud2\n"				\
+			     ".pushsection __bug_table,\"a\"\n"		\
+			     "2:\t.quad 1b, %c0\n"			\
+			     "\t.word %c1, 0\n"				\
+			     "\t.org 2b+%c2\n"				\
+			     ".popsection"				\
+			     : : "i" (__FILE__), "i" (__LINE__),	\
+			        "i" (sizeof(struct bug_entry)));	\
+		for(;;) ;						\
+	} while(0)
+#else
+#define BUG()								\
+	do {								\
+		asm volatile("ud2");					\
+		for(;;) ;						\
+	} while(0)
+#endif
+
 void out_of_line_bug(void);
 #else
 static inline void out_of_line_bug(void) { }
diff --git a/include/asm-x86_64/cacheflush.h b/include/asm-x86_64/cacheflush.h
index d32f7f58752..ab1cb5c7dc9 100644
--- a/include/asm-x86_64/cacheflush.h
+++ b/include/asm-x86_64/cacheflush.h
@@ -7,6 +7,7 @@
 /* Caches aren't brain-dead on the intel. */
 #define flush_cache_all()			do { } while (0)
 #define flush_cache_mm(mm)			do { } while (0)
+#define flush_cache_dup_mm(mm)			do { } while (0)
 #define flush_cache_range(vma, start, end)	do { } while (0)
 #define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)
 #define flush_dcache_page(page)			do { } while (0)
diff --git a/include/asm-x86_64/dma-mapping.h b/include/asm-x86_64/dma-mapping.h
index be9ec689072..49dbab09ef2 100644
--- a/include/asm-x86_64/dma-mapping.h
+++ b/include/asm-x86_64/dma-mapping.h
@@ -63,6 +63,9 @@ static inline int dma_mapping_error(dma_addr_t dma_addr)
 	return (dma_addr == bad_dma_address);
 }
 
+#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
+#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
+
 extern void *dma_alloc_coherent(struct device *dev, size_t size,
 				dma_addr_t *dma_handle, gfp_t gfp);
 extern void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
diff --git a/include/asm-x86_64/io.h b/include/asm-x86_64/io.h
index 6ee9fadaaac..f5d84bb7c94 100644
--- a/include/asm-x86_64/io.h
+++ b/include/asm-x86_64/io.h
@@ -248,12 +248,6 @@ void memset_io(volatile void __iomem *a, int b, size_t c);
  */
 #define __ISA_IO_base ((char __iomem *)(PAGE_OFFSET))
 
-/*
- * Again, x86-64 does not require mem IO specific function.
- */
-
-#define eth_io_copy_and_sum(a,b,c,d)		eth_copy_and_sum((a),(void *)(b),(c),(d))
-
 /* Nothing to do */
 
 #define dma_cache_inv(_start,_size)		do { } while (0)
diff --git a/include/asm-x86_64/ioctls.h b/include/asm-x86_64/ioctls.h
index 62caf8b6e4e..3fc0b15a0d7 100644
--- a/include/asm-x86_64/ioctls.h
+++ b/include/asm-x86_64/ioctls.h
@@ -46,6 +46,10 @@
 #define TIOCSBRK	0x5427  /* BSD compatibility */
 #define TIOCCBRK	0x5428  /* BSD compatibility */
 #define TIOCGSID	0x5429  /* Return the session ID of FD */
+#define TCGETS2		_IOR('T',0x2A, struct termios2)
+#define TCSETS2		_IOW('T',0x2B, struct termios2)
+#define TCSETSW2	_IOW('T',0x2C, struct termios2)
+#define TCSETSF2	_IOW('T',0x2D, struct termios2)
 #define TIOCGPTN	_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
 #define TIOCSPTLCK	_IOW('T',0x31, int)  /* Lock/unlock Pty */
 
diff --git a/include/asm-x86_64/msr.h b/include/asm-x86_64/msr.h
index 952783d35c7..3227bc93d69 100644
--- a/include/asm-x86_64/msr.h
+++ b/include/asm-x86_64/msr.h
@@ -189,6 +189,7 @@ static inline unsigned int cpuid_edx(unsigned int op)
 
 #define MSR_IA32_PERFCTR0      0xc1
 #define MSR_IA32_PERFCTR1      0xc2
+#define MSR_FSB_FREQ		0xcd
 
 #define MSR_MTRRcap		0x0fe
 #define MSR_IA32_BBL_CR_CTL        0x119
@@ -311,6 +312,9 @@ static inline unsigned int cpuid_edx(unsigned int op)
 #define MSR_IA32_PERF_STATUS		0x198
 #define MSR_IA32_PERF_CTL		0x199
 
+#define MSR_IA32_MPERF			0xE7
+#define MSR_IA32_APERF			0xE8
+
 #define MSR_IA32_THERM_CONTROL		0x19a
 #define MSR_IA32_THERM_INTERRUPT	0x19b
 #define MSR_IA32_THERM_STATUS		0x19c
diff --git a/include/asm-x86_64/proto.h b/include/asm-x86_64/proto.h
index 6d324b83897..a6d2ff5c69b 100644
--- a/include/asm-x86_64/proto.h
+++ b/include/asm-x86_64/proto.h
@@ -81,7 +81,6 @@ extern void swap_low_mappings(void);
 extern void __show_regs(struct pt_regs * regs);
 extern void show_regs(struct pt_regs * regs);
 
-extern char *syscall32_page;
 extern void syscall32_cpu_init(void);
 
 extern void setup_node_bootmem(int nodeid, unsigned long start, unsigned long end);
diff --git a/include/asm-x86_64/swiotlb.h b/include/asm-x86_64/swiotlb.h
index ba94ab3d267..ab913ffcad5 100644
--- a/include/asm-x86_64/swiotlb.h
+++ b/include/asm-x86_64/swiotlb.h
@@ -1,6 +1,5 @@
 #ifndef _ASM_SWIOTLB_H
-#define _ASM_SWTIOLB_H 1
-
+#define _ASM_SWIOTLB_H 1
 
 #include <asm/dma-mapping.h>
 
@@ -45,6 +44,7 @@ extern void swiotlb_init(void);
 extern int swiotlb_force;
 
 #ifdef CONFIG_SWIOTLB
+#define SWIOTLB_ARCH_NEED_ALLOC
 extern int swiotlb;
 #else
 #define swiotlb 0
@@ -52,4 +52,6 @@ extern int swiotlb;
 
 extern void pci_swiotlb_init(void);
 
-#endif /* _ASM_SWTIOLB_H */
+static inline void dma_mark_clean(void *addr, size_t size) {}
+
+#endif /* _ASM_SWIOTLB_H */
diff --git a/include/asm-x86_64/termbits.h b/include/asm-x86_64/termbits.h
index bd950946e52..6cfc3bb10c1 100644
--- a/include/asm-x86_64/termbits.h
+++ b/include/asm-x86_64/termbits.h
@@ -17,6 +17,28 @@ struct termios {
 	cc_t c_cc[NCCS];		/* control characters */
 };
 
+struct termios2 {
+	tcflag_t c_iflag;		/* input mode flags */
+	tcflag_t c_oflag;		/* output mode flags */
+	tcflag_t c_cflag;		/* control mode flags */
+	tcflag_t c_lflag;		/* local mode flags */
+	cc_t c_line;			/* line discipline */
+	cc_t c_cc[NCCS];		/* control characters */
+	speed_t c_ispeed;		/* input speed */
+	speed_t c_ospeed;		/* output speed */
+};
+
+struct ktermios {
+	tcflag_t c_iflag;		/* input mode flags */
+	tcflag_t c_oflag;		/* output mode flags */
+	tcflag_t c_cflag;		/* control mode flags */
+	tcflag_t c_lflag;		/* local mode flags */
+	cc_t c_line;			/* line discipline */
+	cc_t c_cc[NCCS];		/* control characters */
+	speed_t c_ispeed;		/* input speed */
+	speed_t c_ospeed;		/* output speed */
+};
+
 /* c_cc characters */
 #define VINTR 0
 #define VQUIT 1
@@ -118,6 +140,7 @@ struct termios {
 #define HUPCL	0002000
 #define CLOCAL	0004000
 #define CBAUDEX 0010000
+#define	   BOTHER 0010000		/* non standard rate */
 #define    B57600 0010001
 #define   B115200 0010002
 #define   B230400 0010003
@@ -133,10 +156,12 @@ struct termios {
 #define  B3000000 0010015
 #define  B3500000 0010016
 #define  B4000000 0010017
-#define CIBAUD	  002003600000	/* input baud rate (not used) */
+#define CIBAUD	  002003600000	/* input baud rate */
 #define CMSPAR	  010000000000		/* mark or space (stick) parity */
 #define CRTSCTS	  020000000000		/* flow control */
 
+#define IBSHIFT	  8		/* Shift from CBAUD to CIBAUD */
+
 /* c_lflag bits */
 #define ISIG	0000001
 #define ICANON	0000002
diff --git a/include/asm-x86_64/termios.h b/include/asm-x86_64/termios.h
index 041a91f7ddf..443b225537f 100644
--- a/include/asm-x86_64/termios.h
+++ b/include/asm-x86_64/termios.h
@@ -98,8 +98,10 @@ struct termio {
 	copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
 })
 
-#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios))
-#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios))
+#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios2))
+#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios2))
+#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios))
+#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios))
 
 #endif	/* __KERNEL__ */
 
diff --git a/include/asm-x86_64/thread_info.h b/include/asm-x86_64/thread_info.h
index 787a08114b4..74a6c74397f 100644
--- a/include/asm-x86_64/thread_info.h
+++ b/include/asm-x86_64/thread_info.h
@@ -122,6 +122,7 @@ static inline struct thread_info *stack_thread_info(void)
 #define TIF_MEMDIE		20
 #define TIF_DEBUG		21	/* uses debug registers */
 #define TIF_IO_BITMAP		22	/* uses I/O bitmap */
+#define TIF_FREEZE		23	/* is freezing for suspend */
 
 #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
 #define _TIF_NOTIFY_RESUME	(1<<TIF_NOTIFY_RESUME)
@@ -137,6 +138,7 @@ static inline struct thread_info *stack_thread_info(void)
 #define _TIF_ABI_PENDING	(1<<TIF_ABI_PENDING)
 #define _TIF_DEBUG		(1<<TIF_DEBUG)
 #define _TIF_IO_BITMAP		(1<<TIF_IO_BITMAP)
+#define _TIF_FREEZE		(1<<TIF_FREEZE)
 
 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK \
diff --git a/include/asm-x86_64/topology.h b/include/asm-x86_64/topology.h
index 5c8f49280db..2facec5914d 100644
--- a/include/asm-x86_64/topology.h
+++ b/include/asm-x86_64/topology.h
@@ -47,6 +47,7 @@ extern int __node_distance(int, int);
 	.flags			= SD_LOAD_BALANCE	\
 				| SD_BALANCE_FORK	\
 				| SD_BALANCE_EXEC	\
+				| SD_SERIALIZE		\
 				| SD_WAKE_BALANCE,	\
 	.last_balance		= jiffies,		\
 	.balance_interval	= 1,			\
diff --git a/include/asm-x86_64/uaccess.h b/include/asm-x86_64/uaccess.h
index d5dbc87274f..c0eac519840 100644
--- a/include/asm-x86_64/uaccess.h
+++ b/include/asm-x86_64/uaccess.h
@@ -157,7 +157,7 @@ do {									\
 	  case 1: __put_user_asm(x,ptr,retval,"b","b","iq",-EFAULT); break;\
 	  case 2: __put_user_asm(x,ptr,retval,"w","w","ir",-EFAULT); break;\
 	  case 4: __put_user_asm(x,ptr,retval,"l","k","ir",-EFAULT); break;\
-	  case 8: __put_user_asm(x,ptr,retval,"q","","ir",-EFAULT); break;\
+	  case 8: __put_user_asm(x,ptr,retval,"q","","Zr",-EFAULT); break;\
 	  default: __put_user_bad();					\
 	}								\
 } while (0)
diff --git a/include/asm-x86_64/unwind.h b/include/asm-x86_64/unwind.h
index 2f6349e4871..02710f6a456 100644
--- a/include/asm-x86_64/unwind.h
+++ b/include/asm-x86_64/unwind.h
@@ -1,100 +1,6 @@
 #ifndef _ASM_X86_64_UNWIND_H
 #define _ASM_X86_64_UNWIND_H
 
-/*
- * Copyright (C) 2002-2006 Novell, Inc.
- *	Jan Beulich <jbeulich@novell.com>
- * This code is released under version 2 of the GNU GPL.
- */
-
-#ifdef CONFIG_STACK_UNWIND
-
-#include <linux/sched.h>
-#include <asm/ptrace.h>
-#include <asm/uaccess.h>
-#include <asm/vsyscall.h>
-
-struct unwind_frame_info
-{
-	struct pt_regs regs;
-	struct task_struct *task;
-	unsigned call_frame:1;
-};
-
-#define UNW_PC(frame)        (frame)->regs.rip
-#define UNW_SP(frame)        (frame)->regs.rsp
-#ifdef CONFIG_FRAME_POINTER
-#define UNW_FP(frame)        (frame)->regs.rbp
-#define FRAME_RETADDR_OFFSET 8
-#define FRAME_LINK_OFFSET    0
-#define STACK_BOTTOM(tsk)    (((tsk)->thread.rsp0 - 1) & ~(THREAD_SIZE - 1))
-#define STACK_TOP(tsk)       ((tsk)->thread.rsp0)
-#endif
-/* Might need to account for the special exception and interrupt handling
-   stacks here, since normally
-	EXCEPTION_STACK_ORDER < THREAD_ORDER < IRQSTACK_ORDER,
-   but the construct is needed only for getting across the stack switch to
-   the interrupt stack - thus considering the IRQ stack itself is unnecessary,
-   and the overhead of comparing against all exception handling stacks seems
-   not desirable. */
-#define STACK_LIMIT(ptr)     (((ptr) - 1) & ~(THREAD_SIZE - 1))
-
-#define UNW_REGISTER_INFO \
-	PTREGS_INFO(rax), \
-	PTREGS_INFO(rdx), \
-	PTREGS_INFO(rcx), \
-	PTREGS_INFO(rbx), \
-	PTREGS_INFO(rsi), \
-	PTREGS_INFO(rdi), \
-	PTREGS_INFO(rbp), \
-	PTREGS_INFO(rsp), \
-	PTREGS_INFO(r8), \
-	PTREGS_INFO(r9), \
-	PTREGS_INFO(r10), \
-	PTREGS_INFO(r11), \
-	PTREGS_INFO(r12), \
-	PTREGS_INFO(r13), \
-	PTREGS_INFO(r14), \
-	PTREGS_INFO(r15), \
-	PTREGS_INFO(rip)
-
-#define UNW_DEFAULT_RA(raItem, dataAlign) \
-	((raItem).where == Memory && \
-	 !((raItem).value * (dataAlign) + 8))
-
-static inline void arch_unw_init_frame_info(struct unwind_frame_info *info,
-                                            /*const*/ struct pt_regs *regs)
-{
-	info->regs = *regs;
-}
-
-static inline void arch_unw_init_blocked(struct unwind_frame_info *info)
-{
-	extern const char thread_return[];
-
-	memset(&info->regs, 0, sizeof(info->regs));
-	info->regs.rip = (unsigned long)thread_return;
-	info->regs.cs = __KERNEL_CS;
-	__get_user(info->regs.rbp, (unsigned long *)info->task->thread.rsp);
-	info->regs.rsp = info->task->thread.rsp;
-	info->regs.ss = __KERNEL_DS;
-}
-
-extern int arch_unwind_init_running(struct unwind_frame_info *,
-                                    int (*callback)(struct unwind_frame_info *,
-                                                    void *arg),
-                                    void *arg);
-
-static inline int arch_unw_user_mode(const struct unwind_frame_info *info)
-{
-	return user_mode(&info->regs)
-	       || (long)info->regs.rip >= 0
-	       || (info->regs.rip >= VSYSCALL_START && info->regs.rip < VSYSCALL_END)
-	       || (long)info->regs.rsp >= 0;
-}
-
-#else
-
 #define UNW_PC(frame) ((void)(frame), 0UL)
 #define UNW_SP(frame) ((void)(frame), 0UL)
 
@@ -103,6 +9,4 @@ static inline int arch_unw_user_mode(const void *info)
 	return 0;
 }
 
-#endif
-
 #endif /* _ASM_X86_64_UNWIND_H */