[PATCH] [0/26] x86 candidate patches for review IV: more misc patches

[PATCH] [0/26] x86 candidate patches for review IV: more misc patches

[Andi Kleen]

- New smp_ops interface to handle Xen and other non APIC subarchitectures cleanly
- Fix vmalloc_32() on 64bit systems
- Finally fix compat vDSO
- Initial per CPU cleanups. Now the in core kernel per cpu data 
doesn't have a upper limit anymore.
- Some AMD Family 10h support
- Many cleanups 

Please review.

-Andi

[PATCH] [1/26] i386: Add smp_ops interface

[Andi Kleen]

From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Add smp_ops interface

Add a smp_ops interface.  This abstracts the API defined by
<linux/smp.h> for use within arch/i386.  The primary intent is that it
be used by a paravirtualizing hypervisor to implement SMP, but it
could also be used by non-APIC-using sub-architectures.

This is related to CONFIG_PARAVIRT, but is implemented unconditionally
since it is simpler that way and not a highly performance-sensitive
interface.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>

---
 arch/i386/kernel/smp.c     |   21 +++++++++++++----
 arch/i386/kernel/smpboot.c |    8 +++---
 include/asm-i386/smp.h     |   53 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 73 insertions(+), 9 deletions(-)

===================================================================
Index: linux/arch/i386/kernel/smp.c
===================================================================
--- linux.orig/arch/i386/kernel/smp.c
+++ linux/arch/i386/kernel/smp.c
@@ -483,7 +483,7 @@ void flush_tlb_all(void)
  * it goes straight through and wastes no time serializing
  * anything. Worst case is that we lose a reschedule ...
  */
-void smp_send_reschedule(int cpu)
+void native_smp_send_reschedule(int cpu)
 {
 	WARN_ON(cpu_is_offline(cpu));
 	send_IPI_mask(cpumask_of_cpu(cpu), RESCHEDULE_VECTOR);
@@ -560,9 +560,9 @@ static void __smp_call_function(void (*f
  * You must not call this function with disabled interrupts or from a
  * hardware interrupt handler or from a bottom half handler.
  */
-int smp_call_function_mask(cpumask_t mask,
-			   void (*func)(void *), void *info,
-			   int wait)
+int native_smp_call_function_mask(cpumask_t mask,
+				  void (*func)(void *), void *info,
+				  int wait)
 {
 	struct call_data_struct data;
 	cpumask_t allbutself;
@@ -681,7 +681,7 @@ static void stop_this_cpu (void * dummy)
  * this function calls the 'stop' function on all other CPUs in the system.
  */
 
-void smp_send_stop(void)
+void native_smp_send_stop(void)
 {
 	/* Don't deadlock on the call lock in panic */
 	int nolock = !spin_trylock(&call_lock);
@@ -757,3 +757,14 @@ int safe_smp_processor_id(void)
 
 	return cpuid >= 0 ? cpuid : 0;
 }
+
+struct smp_ops smp_ops = {
+	.smp_prepare_boot_cpu = native_smp_prepare_boot_cpu,
+	.smp_prepare_cpus = native_smp_prepare_cpus,
+	.cpu_up = native_cpu_up,
+	.smp_cpus_done = native_smp_cpus_done,
+
+	.smp_send_stop = native_smp_send_stop,
+	.smp_send_reschedule = native_smp_send_reschedule,
+	.smp_call_function_mask = native_smp_call_function_mask,
+};
Index: linux/arch/i386/kernel/smpboot.c
===================================================================
--- linux.orig/arch/i386/kernel/smpboot.c
+++ linux/arch/i386/kernel/smpboot.c
@@ -1171,7 +1171,7 @@ static void __init smp_boot_cpus(unsigne
 
 /* These are wrappers to interface to the new boot process.  Someone
    who understands all this stuff should rewrite it properly. --RR 15/Jul/02 */
-void __init smp_prepare_cpus(unsigned int max_cpus)
+void __init native_smp_prepare_cpus(unsigned int max_cpus)
 {
 	smp_commenced_mask = cpumask_of_cpu(0);
 	cpu_callin_map = cpumask_of_cpu(0);
@@ -1191,7 +1191,7 @@ static inline void switch_to_new_gdt(voi
 	asm volatile ("mov %0, %%fs" : : "r" (__KERNEL_PDA) : "memory");
 }
 
-void __init smp_prepare_boot_cpu(void)
+void __init native_smp_prepare_boot_cpu(void)
 {
 	unsigned int cpu = smp_processor_id();
 
@@ -1292,7 +1292,7 @@ void __cpu_die(unsigned int cpu)
 }
 #endif /* CONFIG_HOTPLUG_CPU */
 
-int __cpuinit __cpu_up(unsigned int cpu)
+int __cpuinit native_cpu_up(unsigned int cpu)
 {
 	unsigned long flags;
 #ifdef CONFIG_HOTPLUG_CPU
@@ -1337,7 +1337,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
 	return 0;
 }
 
-void __init smp_cpus_done(unsigned int max_cpus)
+void __init native_smp_cpus_done(unsigned int max_cpus)
 {
 #ifdef CONFIG_X86_IO_APIC
 	setup_ioapic_dest();
Index: linux/include/asm-i386/smp.h
===================================================================
--- linux.orig/include/asm-i386/smp.h
+++ linux/include/asm-i386/smp.h
@@ -49,6 +49,59 @@ extern void cpu_exit_clear(void);
 extern void cpu_uninit(void);
 #endif
 
+struct smp_ops
+{
+	void (*smp_prepare_boot_cpu)(void);
+	void (*smp_prepare_cpus)(unsigned max_cpus);
+	int (*cpu_up)(unsigned cpu);
+	void (*smp_cpus_done)(unsigned max_cpus);
+
+	void (*smp_send_stop)(void);
+	void (*smp_send_reschedule)(int cpu);
+	int (*smp_call_function_mask)(cpumask_t mask,
+				      void (*func)(void *info), void *info,
+				      int wait);
+};
+
+extern struct smp_ops smp_ops;
+
+static inline void smp_prepare_boot_cpu(void)
+{
+	smp_ops.smp_prepare_boot_cpu();
+}
+static inline void smp_prepare_cpus(unsigned int max_cpus)
+{
+	smp_ops.smp_prepare_cpus(max_cpus);
+}
+static inline int __cpu_up(unsigned int cpu)
+{
+	return smp_ops.cpu_up(cpu);
+}
+static inline void smp_cpus_done(unsigned int max_cpus)
+{
+	smp_ops.smp_cpus_done(max_cpus);
+}
+
+static inline void smp_send_stop(void)
+{
+	smp_ops.smp_send_stop();
+}
+static inline void smp_send_reschedule(int cpu)
+{
+	smp_ops.smp_send_reschedule(cpu);
+}
+static inline int smp_call_function_mask(cpumask_t mask,
+					 void (*func) (void *info), void *info,
+					 int wait)
+{
+	return smp_ops.smp_call_function_mask(mask, func, info, wait);
+}
+
+void native_smp_prepare_boot_cpu(void);
+void native_smp_prepare_cpus(unsigned int max_cpus);
+int native_cpu_up(unsigned int cpunum);
+void native_smp_cpus_done(unsigned int max_cpus);
+
 #ifndef CONFIG_PARAVIRT
 #define startup_ipi_hook(phys_apicid, start_eip, start_esp) 		\
 do { } while (0)

[PATCH] [2/26] i386: Add machine_ops interface to abstract halting and rebooting

[Andi Kleen]

From: Jeremy Fitzhardinge <jeremy@goop.org>
machine_ops is an interface for the machine_* functions defined in
<linux/reboot.h>.  This is intended to allow hypervisors to intercept
the reboot process, but it could be used to implement other x86
subarchtecture reboots.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>

---
 arch/i386/kernel/apm.c    |    3 +--
 arch/i386/kernel/reboot.c |   43 ++++++++++++++++++++++++++++++++++++++-----
 include/asm-i386/reboot.h |   20 ++++++++++++++++++++
 3 files changed, 59 insertions(+), 7 deletions(-)

===================================================================
Index: linux/arch/i386/kernel/apm.c
===================================================================
--- linux.orig/arch/i386/kernel/apm.c
+++ linux/arch/i386/kernel/apm.c
@@ -233,11 +233,10 @@
 #include <asm/desc.h>
 #include <asm/i8253.h>
 #include <asm/paravirt.h>
+#include <asm/reboot.h>
 
 #include "io_ports.h"
 
-extern void machine_real_restart(unsigned char *, int);
-
 #if defined(CONFIG_APM_DISPLAY_BLANK) && defined(CONFIG_VT)
 extern int (*console_blank_hook)(int);
 #endif
Index: linux/arch/i386/kernel/reboot.c
===================================================================
--- linux.orig/arch/i386/kernel/reboot.c
+++ linux/arch/i386/kernel/reboot.c
@@ -18,6 +18,7 @@
 #include <asm/desc.h>
 #include "mach_reboot.h"
 #include <asm/reboot_fixups.h>
+#include <asm/reboot.h>
 
 /*
  * Power off function, if any
@@ -280,7 +281,7 @@ void machine_real_restart(unsigned char 
 EXPORT_SYMBOL(machine_real_restart);
 #endif
 
-void machine_shutdown(void)
+static void native_machine_shutdown(void)
 {
 #ifdef CONFIG_SMP
 	int reboot_cpu_id;
@@ -320,7 +321,7 @@ void __attribute__((weak)) mach_reboot_f
 {
 }
 
-void machine_emergency_restart(void)
+static void native_machine_emergency_restart(void)
 {
 	if (!reboot_thru_bios) {
 		if (efi_enabled) {
@@ -344,17 +345,17 @@ void machine_emergency_restart(void)
 	machine_real_restart(jump_to_bios, sizeof(jump_to_bios));
 }
 
-void machine_restart(char * __unused)
+static void native_machine_restart(char * __unused)
 {
 	machine_shutdown();
 	machine_emergency_restart();
 }
 
-void machine_halt(void)
+static void native_machine_halt(void)
 {
 }
 
-void machine_power_off(void)
+static void native_machine_power_off(void)
 {
 	if (pm_power_off) {
 		machine_shutdown();
@@ -363,3 +364,35 @@ void machine_power_off(void)
 }
 
 
+struct machine_ops machine_ops = {
+	.power_off = native_machine_power_off,
+	.shutdown = native_machine_shutdown,
+	.emergency_restart = native_machine_emergency_restart,
+	.restart = native_machine_restart,
+	.halt = native_machine_halt,
+};
+
+void machine_power_off(void)
+{
+	machine_ops.power_off();
+}
+
+void machine_shutdown(void)
+{
+	machine_ops.shutdown();
+}
+
+void machine_emergency_restart(void)
+{
+	machine_ops.emergency_restart();
+}
+
+void machine_restart(char *cmd)
+{
+	machine_ops.restart(cmd);
+}
+
+void machine_halt(void)
+{
+	machine_ops.halt();
+}
Index: linux/include/asm-i386/reboot.h
===================================================================
--- /dev/null
+++ linux/include/asm-i386/reboot.h
@@ -0,0 +1,20 @@
+#ifndef _ASM_REBOOT_H
+#define _ASM_REBOOT_H
+
+struct pt_regs;
+
+struct machine_ops
+{
+	void (*restart)(char *cmd);
+	void (*halt)(void);
+	void (*power_off)(void);
+	void (*shutdown)(void);
+	void (*crash_shutdown)(struct pt_regs *);
+	void (*emergency_restart)(void);
+};
+
+extern struct machine_ops machine_ops;
+
+void machine_real_restart(unsigned char *code, int length);
+
+#endif	/* _ASM_REBOOT_H */

[PATCH] [4/26] i386: Remove unneeded externs in nmi.c

[Andi Kleen]

All were already in some header
Signed-off-by: Andi Kleen <ak@suse.de>

---
 arch/i386/kernel/nmi.c |    3 ---
 1 file changed, 3 deletions(-)

Index: linux/arch/i386/kernel/nmi.c
===================================================================
--- linux.orig/arch/i386/kernel/nmi.c
+++ linux/arch/i386/kernel/nmi.c
@@ -75,9 +75,6 @@ static DEFINE_PER_CPU(struct nmi_watchdo
 /* local prototypes */
 static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu);
 
-extern void show_registers(struct pt_regs *regs);
-extern int unknown_nmi_panic;
-
 /* converts an msr to an appropriate reservation bit */
 static inline unsigned int nmi_perfctr_msr_to_bit(unsigned int msr)
 {

[PATCH] [6/26] x86: fix amd64-agp aperture validation

[Andi Kleen]

From: "Jan Beulich" <jbeulich@novell.com>
Under CONFIG_DISCONTIGMEM, assuming that a !pfn_valid() implies all
subsequent pfn-s are also invalid is wrong. Thus replace this by
explicitly checking against the E820 map.

AK: make e820 on x86-64 not initdata

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Mark Langsdorf <mark.langsdorf@amd.com>

---
 arch/i386/kernel/e820.c      |   20 ++++++++++++++++++++
 arch/x86_64/kernel/e820.c    |    5 +++--
 drivers/char/agp/amd64-agp.c |   13 ++++---------
 include/asm-i386/e820.h      |    1 +
 4 files changed, 28 insertions(+), 11 deletions(-)

Index: linux/arch/i386/kernel/e820.c
===================================================================
--- linux.orig/arch/i386/kernel/e820.c
+++ linux/arch/i386/kernel/e820.c
@@ -825,6 +825,26 @@ void __init limit_regions(unsigned long 
 	print_memory_map("limit_regions endfunc");
 }
 
+/*
+ * This function checks if any part of the range <start,end> is mapped
+ * with type.
+ */
+int
+e820_any_mapped(u64 start, u64 end, unsigned type)
+{
+	int i;
+	for (i = 0; i < e820.nr_map; i++) {
+		const struct e820entry *ei = &e820.map[i];
+		if (type && ei->type != type)
+			continue;
+		if (ei->addr >= end || ei->addr + ei->size <= start)
+			continue;
+		return 1;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(e820_any_mapped);
+
  /*
   * This function checks if the entire range <start,end> is mapped with type.
   *
Index: linux/arch/x86_64/kernel/e820.c
===================================================================
--- linux.orig/arch/x86_64/kernel/e820.c
+++ linux/arch/x86_64/kernel/e820.c
@@ -25,7 +25,7 @@
 #include <asm/bootsetup.h>
 #include <asm/sections.h>
 
-struct e820map e820 __initdata;
+struct e820map e820;
 
 /* 
  * PFN of last memory page.
@@ -98,7 +98,7 @@ static inline int bad_addr(unsigned long
  * This function checks if any part of the range <start,end> is mapped
  * with type.
  */
-int __meminit
+int
 e820_any_mapped(unsigned long start, unsigned long end, unsigned type)
 { 
 	int i;
@@ -112,6 +112,7 @@ e820_any_mapped(unsigned long start, uns
 	} 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(e820_any_mapped);
 
 /*
  * This function checks if the entire range <start,end> is mapped with type.
Index: linux/drivers/char/agp/amd64-agp.c
===================================================================
--- linux.orig/drivers/char/agp/amd64-agp.c
+++ linux/drivers/char/agp/amd64-agp.c
@@ -14,6 +14,7 @@
 #include <linux/agp_backend.h>
 #include <linux/mmzone.h>
 #include <asm/page.h>		/* PAGE_SIZE */
+#include <asm/e820.h>
 #include <asm/k8.h>
 #include "agp.h"
 
@@ -259,7 +260,6 @@ static const struct agp_bridge_driver am
 /* Some basic sanity checks for the aperture. */
 static int __devinit aperture_valid(u64 aper, u32 size)
 {
-	u32 pfn, c;
 	if (aper == 0) {
 		printk(KERN_ERR PFX "No aperture\n");
 		return 0;
@@ -272,14 +272,9 @@ static int __devinit aperture_valid(u64 
 		printk(KERN_ERR PFX "Aperture out of bounds\n");
 		return 0;
 	}
-	pfn = aper >> PAGE_SHIFT;
-	for (c = 0; c < size/PAGE_SIZE; c++) {
-		if (!pfn_valid(pfn + c))
-			break;
-		if (!PageReserved(pfn_to_page(pfn + c))) {
-			printk(KERN_ERR PFX "Aperture pointing to RAM\n");
-			return 0;
-		}
+	if (e820_any_mapped(aper, aper + size, E820_RAM)) {
+		printk(KERN_ERR PFX "Aperture pointing to RAM\n");
+		return 0;
 	}
 
 	/* Request the Aperture. This catches cases when someone else
Index: linux/include/asm-i386/e820.h
===================================================================
--- linux.orig/include/asm-i386/e820.h
+++ linux/include/asm-i386/e820.h
@@ -38,6 +38,7 @@ extern struct e820map e820;
 
 extern int e820_all_mapped(unsigned long start, unsigned long end,
 			   unsigned type);
+extern int e820_any_mapped(u64 start, u64 end, unsigned type);
 extern void find_max_pfn(void);
 extern void register_bootmem_low_pages(unsigned long max_low_pfn);
 extern void e820_register_memory(void);

[PATCH] [7/26] x86_64: Use X86_EFLAGS_IF in x86-64/irqflags.h.

[Andi Kleen]

As per i386 patch: move X86_EFLAGS_IF et al out to a new header:
processor-flags.h, so we can include it from irqflags.h and use it in
raw_irqs_disabled_flags().

As a side-effect, we could now use these flags in .S files.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andi Kleen <ak@suse.de>

---
 include/asm-x86_64/irqflags.h        |    9 +++++----
 include/asm-x86_64/processor-flags.h |   26 ++++++++++++++++++++++++++
 include/asm-x86_64/processor.h       |   22 +---------------------
 3 files changed, 32 insertions(+), 25 deletions(-)

Index: linux/include/asm-x86_64/irqflags.h
===================================================================
--- linux.orig/include/asm-x86_64/irqflags.h
+++ linux/include/asm-x86_64/irqflags.h
@@ -9,6 +9,7 @@
  */
 #ifndef _ASM_IRQFLAGS_H
 #define _ASM_IRQFLAGS_H
+#include <asm/processor-flags.h>
 
 #ifndef __ASSEMBLY__
 /*
@@ -53,19 +54,19 @@ static inline void raw_local_irq_disable
 {
 	unsigned long flags = __raw_local_save_flags();
 
-	raw_local_irq_restore((flags & ~(1 << 9)) | (1 << 18));
+	raw_local_irq_restore((flags & ~X86_EFLAGS_IF) | X86_EFLAGS_AC);
 }
 
 static inline void raw_local_irq_enable(void)
 {
 	unsigned long flags = __raw_local_save_flags();
 
-	raw_local_irq_restore((flags | (1 << 9)) & ~(1 << 18));
+	raw_local_irq_restore((flags | X86_EFLAGS_IF) & (~X86_EFLAGS_AC));
 }
 
 static inline int raw_irqs_disabled_flags(unsigned long flags)
 {
-	return !(flags & (1<<9)) || (flags & (1 << 18));
+	return !(flags & X86_EFLAGS_IF) || (flags & X86_EFLAGS_AC);
 }
 
 #else /* CONFIG_X86_VSMP */
@@ -82,7 +83,7 @@ static inline void raw_local_irq_enable(
 
 static inline int raw_irqs_disabled_flags(unsigned long flags)
 {
-	return !(flags & (1 << 9));
+	return !(flags & X86_EFLAGS_IF);
 }
 
 #endif
Index: linux/include/asm-x86_64/processor-flags.h
===================================================================
--- /dev/null
+++ linux/include/asm-x86_64/processor-flags.h
@@ -0,0 +1,26 @@
+#ifndef __ASM_X86_64_PROCESSOR_FLAGS_H
+#define __ASM_X86_64_PROCESSOR_FLAGS_H
+/* Various flags defined: can be included from assembler. */
+
+/*
+ * EFLAGS bits
+ */
+#define X86_EFLAGS_CF	0x00000001 /* Carry Flag */
+#define X86_EFLAGS_PF	0x00000004 /* Parity Flag */
+#define X86_EFLAGS_AF	0x00000010 /* Auxillary carry Flag */
+#define X86_EFLAGS_ZF	0x00000040 /* Zero Flag */
+#define X86_EFLAGS_SF	0x00000080 /* Sign Flag */
+#define X86_EFLAGS_TF	0x00000100 /* Trap Flag */
+#define X86_EFLAGS_IF	0x00000200 /* Interrupt Flag */
+#define X86_EFLAGS_DF	0x00000400 /* Direction Flag */
+#define X86_EFLAGS_OF	0x00000800 /* Overflow Flag */
+#define X86_EFLAGS_IOPL	0x00003000 /* IOPL mask */
+#define X86_EFLAGS_NT	0x00004000 /* Nested Task */
+#define X86_EFLAGS_RF	0x00010000 /* Resume Flag */
+#define X86_EFLAGS_VM	0x00020000 /* Virtual Mode */
+#define X86_EFLAGS_AC	0x00040000 /* Alignment Check */
+#define X86_EFLAGS_VIF	0x00080000 /* Virtual Interrupt Flag */
+#define X86_EFLAGS_VIP	0x00100000 /* Virtual Interrupt Pending */
+#define X86_EFLAGS_ID	0x00200000 /* CPUID detection flag */
+
+#endif /* __ASM_X86_64_PROCESSOR_FLAGS_H */
Index: linux/include/asm-x86_64/processor.h
===================================================================
--- linux.orig/include/asm-x86_64/processor.h
+++ linux/include/asm-x86_64/processor.h
@@ -20,6 +20,7 @@
 #include <asm/percpu.h>
 #include <linux/personality.h>
 #include <linux/cpumask.h>
+#include <asm/processor-flags.h>
 
 #define TF_MASK		0x00000100
 #define IF_MASK		0x00000200
@@ -103,27 +104,6 @@ extern unsigned int init_intel_cacheinfo
 extern unsigned short num_cache_leaves;
 
 /*
- * EFLAGS bits
- */
-#define X86_EFLAGS_CF	0x00000001 /* Carry Flag */
-#define X86_EFLAGS_PF	0x00000004 /* Parity Flag */
-#define X86_EFLAGS_AF	0x00000010 /* Auxillary carry Flag */
-#define X86_EFLAGS_ZF	0x00000040 /* Zero Flag */
-#define X86_EFLAGS_SF	0x00000080 /* Sign Flag */
-#define X86_EFLAGS_TF	0x00000100 /* Trap Flag */
-#define X86_EFLAGS_IF	0x00000200 /* Interrupt Flag */
-#define X86_EFLAGS_DF	0x00000400 /* Direction Flag */
-#define X86_EFLAGS_OF	0x00000800 /* Overflow Flag */
-#define X86_EFLAGS_IOPL	0x00003000 /* IOPL mask */
-#define X86_EFLAGS_NT	0x00004000 /* Nested Task */
-#define X86_EFLAGS_RF	0x00010000 /* Resume Flag */
-#define X86_EFLAGS_VM	0x00020000 /* Virtual Mode */
-#define X86_EFLAGS_AC	0x00040000 /* Alignment Check */
-#define X86_EFLAGS_VIF	0x00080000 /* Virtual Interrupt Flag */
-#define X86_EFLAGS_VIP	0x00100000 /* Virtual Interrupt Pending */
-#define X86_EFLAGS_ID	0x00200000 /* CPUID detection flag */
-
-/*
  * Intel CPU features in CR4
  */
 #define X86_CR4_VME		0x0001	/* enable vm86 extensions */

[PATCH] [8/26] x86_64: fix arithmetic in comment

[Andi Kleen]

From: Avi Kivity <avi@qumranet.com>
The xmm space on x86_64 is 256 bytes.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andi Kleen <ak@suse.de>

---
 include/asm-x86_64/processor.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux/include/asm-x86_64/processor.h
===================================================================
--- linux.orig/include/asm-x86_64/processor.h
+++ linux/include/asm-x86_64/processor.h
@@ -181,7 +181,7 @@ struct i387_fxsave_struct {
 	u32	mxcsr;
 	u32	mxcsr_mask;
 	u32	st_space[32];	/* 8*16 bytes for each FP-reg = 128 bytes */
-	u32	xmm_space[64];	/* 16*16 bytes for each XMM-reg = 128 bytes */
+	u32	xmm_space[64];	/* 16*16 bytes for each XMM-reg = 256 bytes */
 	u32	padding[24];
 } __attribute__ ((aligned (16)));
 

[PATCH] [9/26] x86_64: Fix vmalloc_32 to really allocate <4GB on 64bit platforms

[Andi Kleen]

Ugly ifdef, but should handle all 64bit platforms that have suitable
zones. On some like Altix it's probably impossible without IOMMU
use to get memory <4GB this way,  but they have to live with that.
Signed-off-by: Andi Kleen <ak@suse.de>

---
 mm/vmalloc.c |   12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

Index: linux/mm/vmalloc.c
===================================================================
--- linux.orig/mm/vmalloc.c
+++ linux/mm/vmalloc.c
@@ -577,6 +577,14 @@ void *vmalloc_exec(unsigned long size)
 	return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC);
 }
 
+#if defined(CONFIG_64BIT) && defined(CONFIG_ZONE_DMA32)
+#define GFP_VMALLOC32 GFP_DMA32
+#elif defined(CONFIG_64BIT) && defined(CONFIG_ZONE_DMA)
+#define GFP_VMALLOC32 GFP_DMA
+#else
+#define GFP_VMALLOC32 GFP_KERNEL
+#endif
+
 /**
  *	vmalloc_32  -  allocate virtually contiguous memory (32bit addressable)
  *	@size:		allocation size
@@ -586,7 +594,7 @@ void *vmalloc_exec(unsigned long size)
  */
 void *vmalloc_32(unsigned long size)
 {
-	return __vmalloc(size, GFP_KERNEL, PAGE_KERNEL);
+	return __vmalloc(size, GFP_VMALLOC32, PAGE_KERNEL);
 }
 EXPORT_SYMBOL(vmalloc_32);
 
@@ -602,7 +610,7 @@ void *vmalloc_32_user(unsigned long size
 	struct vm_struct *area;
 	void *ret;
 
-	ret = __vmalloc(size, GFP_KERNEL | __GFP_ZERO, PAGE_KERNEL);
+	ret = __vmalloc(size, GFP_VMALLOC32 | __GFP_ZERO, PAGE_KERNEL);
 	if (ret) {
 		write_lock(&vmlist_lock);
 		area = __find_vm_area(ret);

Re: [PATCH] [9/26] x86_64: Fix vmalloc_32 to really allocate <4GB on 64bit platforms

[Borislav Petkov]

On Mon, Apr 30, 2007 at 01:46:18AM +0200, Andi Kleen wrote:
> 
> Ugly ifdef, but should handle all 64bit platforms that have suitable
> zones. On some like Altix it's probably impossible without IOMMU
> use to get memory <4GB this way,  but they have to live with that.
> Signed-off-by: Andi Kleen <ak@suse.de>
> 
> ---
>  mm/vmalloc.c |   12 ++++++++++--
>  1 file changed, 10 insertions(+), 2 deletions(-)
> 
> Index: linux/mm/vmalloc.c
> ===================================================================
> --- linux.orig/mm/vmalloc.c
> +++ linux/mm/vmalloc.c
> @@ -577,6 +577,14 @@ void *vmalloc_exec(unsigned long size)
>  	return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC);
>  }
>  
> +#if defined(CONFIG_64BIT) && defined(CONFIG_ZONE_DMA32)
> +#define GFP_VMALLOC32 GFP_DMA32
> +#elif defined(CONFIG_64BIT) && defined(CONFIG_ZONE_DMA)
> +#define GFP_VMALLOC32 GFP_DMA
> +#else
> +#define GFP_VMALLOC32 GFP_KERNEL
> +#endif
> +

Isn't the following shorter:


Index: 2.6.21/mm/vmalloc.c
===================================================================
--- 2.6.21.orig/mm/vmalloc.c
+++ 2.6.21/mm/vmalloc.c
@@ -577,6 +577,15 @@ void *vmalloc_exec(unsigned long size)
 	return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC);
 }

+#if defined(CONFIG_64BIT)
+  #if defined(CONFIG_ZONE_DMA32)
+  #define GFP_VMALLOC32 GFP_DMA32
+  #elif defined(CONFIG_ZONE_DMA)
+  #define GFP_VMALLOC32 GFP_DMA
+#else
+  #define GFP_VMALLOC32 GFP_KERNEL
+#endif
+
 /**
  *	vmalloc_32  -  allocate virtually contiguous memory (32bit addressable)
  *	@size:		allocation size
-- 
Regards/Gruß,
    Boris.

Re: [PATCH] [9/26] x86_64: Fix vmalloc_32 to really allocate <4GB on 64bit platforms

[Borislav Petkov]

Sorry, I meant this one:


Index: 2.6.21/mm/vmalloc.c
===================================================================
--- 2.6.21.orig/mm/vmalloc.c
+++ 2.6.21/mm/vmalloc.c
@@ -577,6 +577,16 @@ void *vmalloc_exec(unsigned long size)
 	return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC);
 }
 
+#if defined(CONFIG_64BIT)
+  #if defined(CONFIG_ZONE_DMA32)
+  #define GFP_VMALLOC32 GFP_DMA32
+  #elif defined(CONFIG_ZONE_DMA)
+  #define GFP_VMALLOC32 GFP_DMA
+  #endif
+#else
+  #define GFP_VMALLOC32 GFP_KERNEL
+#endif
+
 /**
  *	vmalloc_32  -  allocate virtually contiguous memory (32bit addressable)
  *	@size:		allocation size
-- 
Regards/Gruß,
    Boris.

Re: [PATCH] [9/26] x86_64: Fix vmalloc_32 to really allocate <4GB on 64bit platforms

[Andi Kleen]

> Isn't the following shorter:

Perhaps, but this is not a contest to write the shortest code. I think
mine is more clearer.

-Andi

[PATCH] [10/26] i386: Clean up asm-i386/bugs.h

[Andi Kleen]

From: Jeremy Fitzhardinge <jeremy@goop.org>
Most of asm-i386/bugs.h is code which should be in a C file, so put it there.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>

---
 arch/i386/kernel/cpu/Makefile  |    2 
 arch/i386/kernel/cpu/bugs.c    |  191 ++++++++++++++++++++++++++++++++++++++++
 include/asm-i386/alternative.h |    1 
 include/asm-i386/bugs.h        |  194 -----------------------------------------
 4 files changed, 197 insertions(+), 191 deletions(-)

===================================================================
Index: linux/arch/i386/kernel/cpu/Makefile
===================================================================
--- linux.orig/arch/i386/kernel/cpu/Makefile
+++ linux/arch/i386/kernel/cpu/Makefile
@@ -2,7 +2,7 @@
 # Makefile for x86-compatible CPU details and quirks
 #
 
-obj-y	:=	common.o proc.o
+obj-y	:=	common.o proc.o bugs.o
 
 obj-y	+=	amd.o
 obj-y	+=	cyrix.o
Index: linux/arch/i386/kernel/cpu/bugs.c
===================================================================
--- /dev/null
+++ linux/arch/i386/kernel/cpu/bugs.c
@@ -0,0 +1,191 @@
+/*
+ *  arch/i386/cpu/bugs.c
+ *
+ *  Copyright (C) 1994  Linus Torvalds
+ *
+ *  Cyrix stuff, June 1998 by:
+ *	- Rafael R. Reilova (moved everything from head.S),
+ *        <rreilova@ececs.uc.edu>
+ *	- Channing Corn (tests & fixes),
+ *	- Andrew D. Balsa (code cleanup).
+ */
+#include <linux/init.h>
+#include <linux/utsname.h>
+#include <asm/processor.h>
+#include <asm/i387.h>
+#include <asm/msr.h>
+#include <asm/paravirt.h>
+#include <asm/alternative.h>
+
+static int __init no_halt(char *s)
+{
+	boot_cpu_data.hlt_works_ok = 0;
+	return 1;
+}
+
+__setup("no-hlt", no_halt);
+
+static int __init mca_pentium(char *s)
+{
+	mca_pentium_flag = 1;
+	return 1;
+}
+
+__setup("mca-pentium", mca_pentium);
+
+static int __init no_387(char *s)
+{
+	boot_cpu_data.hard_math = 0;
+	write_cr0(0xE | read_cr0());
+	return 1;
+}
+
+__setup("no387", no_387);
+
+static double __initdata x = 4195835.0;
+static double __initdata y = 3145727.0;
+
+/*
+ * This used to check for exceptions..
+ * However, it turns out that to support that,
+ * the XMM trap handlers basically had to
+ * be buggy. So let's have a correct XMM trap
+ * handler, and forget about printing out
+ * some status at boot.
+ *
+ * We should really only care about bugs here
+ * anyway. Not features.
+ */
+static void __init check_fpu(void)
+{
+	if (!boot_cpu_data.hard_math) {
+#ifndef CONFIG_MATH_EMULATION
+		printk(KERN_EMERG "No coprocessor found and no math emulation present.\n");
+		printk(KERN_EMERG "Giving up.\n");
+		for (;;) ;
+#endif
+		return;
+	}
+
+/* trap_init() enabled FXSR and company _before_ testing for FP problems here. */
+	/* Test for the divl bug.. */
+	__asm__("fninit\n\t"
+		"fldl %1\n\t"
+		"fdivl %2\n\t"
+		"fmull %2\n\t"
+		"fldl %1\n\t"
+		"fsubp %%st,%%st(1)\n\t"
+		"fistpl %0\n\t"
+		"fwait\n\t"
+		"fninit"
+		: "=m" (*&boot_cpu_data.fdiv_bug)
+		: "m" (*&x), "m" (*&y));
+	if (boot_cpu_data.fdiv_bug)
+		printk("Hmm, FPU with FDIV bug.\n");
+}
+
+static void __init check_hlt(void)
+{
+	if (paravirt_enabled())
+		return;
+
+	printk(KERN_INFO "Checking 'hlt' instruction... ");
+	if (!boot_cpu_data.hlt_works_ok) {
+		printk("disabled\n");
+		return;
+	}
+	halt();
+	halt();
+	halt();
+	halt();
+	printk("OK.\n");
+}
+
+/*
+ *	Most 386 processors have a bug where a POPAD can lock the
+ *	machine even from user space.
+ */
+
+static void __init check_popad(void)
+{
+#ifndef CONFIG_X86_POPAD_OK
+	int res, inp = (int) &res;
+
+	printk(KERN_INFO "Checking for popad bug... ");
+	__asm__ __volatile__(
+	  "movl $12345678,%%eax; movl $0,%%edi; pusha; popa; movl (%%edx,%%edi),%%ecx "
+	  : "=&a" (res)
+	  : "d" (inp)
+	  : "ecx", "edi" );
+	/* If this fails, it means that any user program may lock the CPU hard. Too bad. */
+	if (res != 12345678) printk( "Buggy.\n" );
+		        else printk( "OK.\n" );
+#endif
+}
+
+/*
+ * Check whether we are able to run this kernel safely on SMP.
+ *
+ * - In order to run on a i386, we need to be compiled for i386
+ *   (for due to lack of "invlpg" and working WP on a i386)
+ * - In order to run on anything without a TSC, we need to be
+ *   compiled for a i486.
+ * - In order to support the local APIC on a buggy Pentium machine,
+ *   we need to be compiled with CONFIG_X86_GOOD_APIC disabled,
+ *   which happens implicitly if compiled for a Pentium or lower
+ *   (unless an advanced selection of CPU features is used) as an
+ *   otherwise config implies a properly working local APIC without
+ *   the need to do extra reads from the APIC.
+*/
+
+static void __init check_config(void)
+{
+/*
+ * We'd better not be a i386 if we're configured to use some
+ * i486+ only features! (WP works in supervisor mode and the
+ * new "invlpg" and "bswap" instructions)
+ */
+#if defined(CONFIG_X86_WP_WORKS_OK) || defined(CONFIG_X86_INVLPG) || defined(CONFIG_X86_BSWAP)
+	if (boot_cpu_data.x86 == 3)
+		panic("Kernel requires i486+ for 'invlpg' and other features");
+#endif
+
+/*
+ * If we configured ourselves for a TSC, we'd better have one!
+ */
+#ifdef CONFIG_X86_TSC
+	if (!cpu_has_tsc && !tsc_disable)
+		panic("Kernel compiled for Pentium+, requires TSC feature!");
+#endif
+
+/*
+ * If we were told we had a good local APIC, check for buggy Pentia,
+ * i.e. all B steppings and the C2 stepping of P54C when using their
+ * integrated APIC (see 11AP erratum in "Pentium Processor
+ * Specification Update").
+ */
+#if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86_GOOD_APIC)
+	if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL
+	    && cpu_has_apic
+	    && boot_cpu_data.x86 == 5
+	    && boot_cpu_data.x86_model == 2
+	    && (boot_cpu_data.x86_mask < 6 || boot_cpu_data.x86_mask == 11))
+		panic("Kernel compiled for PMMX+, assumes a local APIC without the read-before-write bug!");
+#endif
+}
+
+
+void __init check_bugs(void)
+{
+	identify_boot_cpu();
+#ifndef CONFIG_SMP
+	printk("CPU: ");
+	print_cpu_info(&boot_cpu_data);
+#endif
+	check_config();
+	check_fpu();
+	check_hlt();
+	check_popad();
+	init_utsname()->machine[1] = '0' + (boot_cpu_data.x86 > 6 ? 6 : boot_cpu_data.x86);
+	alternative_instructions();
+}
Index: linux/include/asm-i386/alternative.h
===================================================================
--- linux.orig/include/asm-i386/alternative.h
+++ linux/include/asm-i386/alternative.h
@@ -16,6 +16,7 @@ struct alt_instr {
 	u8  pad;
 };
 
+extern void alternative_instructions(void);
 extern void apply_alternatives(struct alt_instr *start, struct alt_instr *end);
 
 struct module;
Index: linux/include/asm-i386/bugs.h
===================================================================
--- linux.orig/include/asm-i386/bugs.h
+++ linux/include/asm-i386/bugs.h
@@ -1,198 +1,12 @@
 /*
- *  include/asm-i386/bugs.h
- *
- *  Copyright (C) 1994  Linus Torvalds
- *
- *  Cyrix stuff, June 1998 by:
- *	- Rafael R. Reilova (moved everything from head.S),
- *        <rreilova@ececs.uc.edu>
- *	- Channing Corn (tests & fixes),
- *	- Andrew D. Balsa (code cleanup).
- */
-
-/*
  * This is included by init/main.c to check for architecture-dependent bugs.
  *
  * Needs:
  *	void check_bugs(void);
  */
+#ifndef _ASM_I386_BUG_H
+#define _ASM_I386_BUG_H
 
-#include <linux/init.h>
-#include <asm/processor.h>
-#include <asm/i387.h>
-#include <asm/msr.h>
-#include <asm/paravirt.h>
-
-static int __init no_halt(char *s)
-{
-	boot_cpu_data.hlt_works_ok = 0;
-	return 1;
-}
-
-__setup("no-hlt", no_halt);
-
-static int __init mca_pentium(char *s)
-{
-	mca_pentium_flag = 1;
-	return 1;
-}
-
-__setup("mca-pentium", mca_pentium);
-
-static int __init no_387(char *s)
-{
-	boot_cpu_data.hard_math = 0;
-	write_cr0(0xE | read_cr0());
-	return 1;
-}
-
-__setup("no387", no_387);
-
-static double __initdata x = 4195835.0;
-static double __initdata y = 3145727.0;
-
-/*
- * This used to check for exceptions.. 
- * However, it turns out that to support that,
- * the XMM trap handlers basically had to
- * be buggy. So let's have a correct XMM trap
- * handler, and forget about printing out
- * some status at boot.
- *
- * We should really only care about bugs here
- * anyway. Not features.
- */
-static void __init check_fpu(void)
-{
-	if (!boot_cpu_data.hard_math) {
-#ifndef CONFIG_MATH_EMULATION
-		printk(KERN_EMERG "No coprocessor found and no math emulation present.\n");
-		printk(KERN_EMERG "Giving up.\n");
-		for (;;) ;
-#endif
-		return;
-	}
-
-/* trap_init() enabled FXSR and company _before_ testing for FP problems here. */
-	/* Test for the divl bug.. */
-	__asm__("fninit\n\t"
-		"fldl %1\n\t"
-		"fdivl %2\n\t"
-		"fmull %2\n\t"
-		"fldl %1\n\t"
-		"fsubp %%st,%%st(1)\n\t"
-		"fistpl %0\n\t"
-		"fwait\n\t"
-		"fninit"
-		: "=m" (*&boot_cpu_data.fdiv_bug)
-		: "m" (*&x), "m" (*&y));
-	if (boot_cpu_data.fdiv_bug)
-		printk("Hmm, FPU with FDIV bug.\n");
-}
-
-static void __init check_hlt(void)
-{
-	if (paravirt_enabled())
-		return;
-
-	printk(KERN_INFO "Checking 'hlt' instruction... ");
-	if (!boot_cpu_data.hlt_works_ok) {
-		printk("disabled\n");
-		return;
-	}
-	halt();
-	halt();
-	halt();
-	halt();
-	printk("OK.\n");
-}
-
-/*
- *	Most 386 processors have a bug where a POPAD can lock the 
- *	machine even from user space.
- */
- 
-static void __init check_popad(void)
-{
-#ifndef CONFIG_X86_POPAD_OK
-	int res, inp = (int) &res;
-
-	printk(KERN_INFO "Checking for popad bug... ");
-	__asm__ __volatile__( 
-	  "movl $12345678,%%eax; movl $0,%%edi; pusha; popa; movl (%%edx,%%edi),%%ecx "
-	  : "=&a" (res)
-	  : "d" (inp)
-	  : "ecx", "edi" );
-	/* If this fails, it means that any user program may lock the CPU hard. Too bad. */
-	if (res != 12345678) printk( "Buggy.\n" );
-		        else printk( "OK.\n" );
-#endif
-}
-
-/*
- * Check whether we are able to run this kernel safely on SMP.
- *
- * - In order to run on a i386, we need to be compiled for i386
- *   (for due to lack of "invlpg" and working WP on a i386)
- * - In order to run on anything without a TSC, we need to be
- *   compiled for a i486.
- * - In order to support the local APIC on a buggy Pentium machine,
- *   we need to be compiled with CONFIG_X86_GOOD_APIC disabled,
- *   which happens implicitly if compiled for a Pentium or lower
- *   (unless an advanced selection of CPU features is used) as an
- *   otherwise config implies a properly working local APIC without
- *   the need to do extra reads from the APIC.
-*/
-
-static void __init check_config(void)
-{
-/*
- * We'd better not be a i386 if we're configured to use some
- * i486+ only features! (WP works in supervisor mode and the
- * new "invlpg" and "bswap" instructions)
- */
-#if defined(CONFIG_X86_WP_WORKS_OK) || defined(CONFIG_X86_INVLPG) || defined(CONFIG_X86_BSWAP)
-	if (boot_cpu_data.x86 == 3)
-		panic("Kernel requires i486+ for 'invlpg' and other features");
-#endif
-
-/*
- * If we configured ourselves for a TSC, we'd better have one!
- */
-#ifdef CONFIG_X86_TSC
-	if (!cpu_has_tsc && !tsc_disable)
-		panic("Kernel compiled for Pentium+, requires TSC feature!");
-#endif
-
-/*
- * If we were told we had a good local APIC, check for buggy Pentia,
- * i.e. all B steppings and the C2 stepping of P54C when using their
- * integrated APIC (see 11AP erratum in "Pentium Processor
- * Specification Update").
- */
-#if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86_GOOD_APIC)
-	if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL
-	    && cpu_has_apic
-	    && boot_cpu_data.x86 == 5
-	    && boot_cpu_data.x86_model == 2
-	    && (boot_cpu_data.x86_mask < 6 || boot_cpu_data.x86_mask == 11))
-		panic("Kernel compiled for PMMX+, assumes a local APIC without the read-before-write bug!");
-#endif
-}
-
-extern void alternative_instructions(void);
+extern void __init check_bugs(void);
 
-static void __init check_bugs(void)
-{
-	identify_cpu(&boot_cpu_data);
-#ifndef CONFIG_SMP
-	printk("CPU: ");
-	print_cpu_info(&boot_cpu_data);
-#endif
-	check_config();
-	check_fpu();
-	check_hlt();
-	check_popad();
-	init_utsname()->machine[1] = '0' + (boot_cpu_data.x86 > 6 ? 6 : boot_cpu_data.x86);
-	alternative_instructions(); 
-}
+#endif	/* _ASM_I386_BUG_H */

[PATCH] [11/26] i386: clean up identify_cpu

[Andi Kleen]

From: Jeremy Fitzhardinge <jeremy@goop.org>
identify_cpu() is used to identify both the boot CPU and secondary
CPUs, but it performs some actions which only apply to the boot CPU.
Those functions are therefore really __init functions, but because
they're called by identify_cpu(), they must be marked __cpuinit.

This patch splits identify_cpu() into identify_boot_cpu() and
identify_secondary_cpu(), and calls the appropriate init functions
from each.  Also, identify_boot_cpu() and all the functions it
dominates are marked __init.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>

---
 arch/i386/kernel/cpu/common.c |   21 ++++++++++++++-------
 arch/i386/kernel/smpboot.c    |    2 +-
 arch/i386/kernel/sysenter.c   |    2 +-
 include/asm-i386/processor.h  |    3 ++-
 4 files changed, 18 insertions(+), 10 deletions(-)

===================================================================
Index: linux/arch/i386/kernel/cpu/common.c
===================================================================
--- linux.orig/arch/i386/kernel/cpu/common.c
+++ linux/arch/i386/kernel/cpu/common.c
@@ -394,7 +394,7 @@ __setup("serialnumber", x86_serial_nr_se
 /*
  * This does the hard work of actually picking apart the CPU stuff...
  */
-void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
+static void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
 {
 	int i;
 
@@ -505,15 +505,22 @@ void __cpuinit identify_cpu(struct cpuin
 
 	/* Init Machine Check Exception if available. */
 	mcheck_init(c);
+}
 
-	if (c == &boot_cpu_data)
-		sysenter_setup();
+void __init identify_boot_cpu(void)
+{
+	identify_cpu(&boot_cpu_data);
+	sysenter_setup();
 	enable_sep_cpu();
+	mtrr_bp_init();
+}
 
-	if (c == &boot_cpu_data)
-		mtrr_bp_init();
-	else
-		mtrr_ap_init();
+void __cpuinit identify_secondary_cpu(struct cpuinfo_x86 *c)
+{
+	BUG_ON(c == &boot_cpu_data);
+	identify_cpu(c);
+	enable_sep_cpu();
+	mtrr_ap_init();
 }
 
 #ifdef CONFIG_X86_HT
Index: linux/arch/i386/kernel/smpboot.c
===================================================================
--- linux.orig/arch/i386/kernel/smpboot.c
+++ linux/arch/i386/kernel/smpboot.c
@@ -155,7 +155,7 @@ static void __cpuinit smp_store_cpu_info
 
 	*c = boot_cpu_data;
 	if (id!=0)
-		identify_cpu(c);
+		identify_secondary_cpu(c);
 	/*
 	 * Mask B, Pentium, but not Pentium MMX
 	 */
Index: linux/arch/i386/kernel/sysenter.c
===================================================================
--- linux.orig/arch/i386/kernel/sysenter.c
+++ linux/arch/i386/kernel/sysenter.c
@@ -72,7 +72,7 @@ extern const char vsyscall_int80_start, 
 extern const char vsyscall_sysenter_start, vsyscall_sysenter_end;
 static struct page *syscall_pages[1];
 
-int __cpuinit sysenter_setup(void)
+int __init sysenter_setup(void)
 {
 	void *syscall_page = (void *)get_zeroed_page(GFP_ATOMIC);
 	syscall_pages[0] = virt_to_page(syscall_page);
Index: linux/include/asm-i386/processor.h
===================================================================
--- linux.orig/include/asm-i386/processor.h
+++ linux/include/asm-i386/processor.h
@@ -116,7 +116,8 @@ extern char ignore_fpu_irq;
 
 void __init cpu_detect(struct cpuinfo_x86 *c);
 
-extern void identify_cpu(struct cpuinfo_x86 *);
+extern void identify_boot_cpu(void);
+extern void identify_secondary_cpu(struct cpuinfo_x86 *);
 extern void print_cpu_info(struct cpuinfo_x86 *);
 extern unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c);
 extern unsigned short num_cache_leaves;

[PATCH] [14/26] x86_64: Clean up asm-x86_64/bugs.h

[Andi Kleen]

From: Jeremy Fitzhardinge <jeremy@goop.org>
Most of asm-x86_64/bugs.h is code which should be in a C file, so put it there.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>

---
 arch/x86_64/kernel/Makefile      |    3 ++-
 arch/x86_64/kernel/bugs.c        |   28 ++++++++++++++++++++++++++++
 include/asm-x86_64/alternative.h |    1 +
 include/asm-x86_64/bugs.h        |   30 ++++--------------------------
 4 files changed, 35 insertions(+), 27 deletions(-)

===================================================================
Index: linux/arch/x86_64/kernel/Makefile
===================================================================
--- linux.orig/arch/x86_64/kernel/Makefile
+++ linux/arch/x86_64/kernel/Makefile
@@ -8,7 +8,8 @@ obj-y	:= process.o signal.o entry.o trap
 		ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_x86_64.o \
 		x8664_ksyms.o i387.o syscall.o vsyscall.o \
 		setup64.o bootflag.o e820.o reboot.o quirks.o i8237.o \
-		pci-dma.o pci-nommu.o alternative.o hpet.o tsc.o sched-clock.o
+		pci-dma.o pci-nommu.o alternative.o hpet.o tsc.o sched-clock.o \
+		bugs.o
 
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-$(CONFIG_X86_MCE)		+= mce.o therm_throt.o
Index: linux/arch/x86_64/kernel/bugs.c
===================================================================
--- /dev/null
+++ linux/arch/x86_64/kernel/bugs.c
@@ -0,0 +1,28 @@
+/*
+ *  arch/x86_64/kernel/bugs.c
+ *
+ *  Copyright (C) 1994  Linus Torvalds
+ *  Copyright (C) 2000  SuSE
+ *
+ * This is included by init/main.c to check for architecture-dependent bugs.
+ *
+ * Needs:
+ *	void check_bugs(void);
+ */
+
+#include <linux/kernel.h>
+#include <asm/alternative.h>
+#include <asm/processor.h>
+#include <asm/i387.h>
+#include <asm/msr.h>
+#include <asm/pda.h>
+
+void __init check_bugs(void)
+{
+	identify_cpu(&boot_cpu_data);
+#if !defined(CONFIG_SMP)
+	printk("CPU: ");
+	print_cpu_info(&boot_cpu_data);
+#endif
+	alternative_instructions();
+}
Index: linux/include/asm-x86_64/alternative.h
===================================================================
--- linux.orig/include/asm-x86_64/alternative.h
+++ linux/include/asm-x86_64/alternative.h
@@ -16,6 +16,7 @@ struct alt_instr {
 	u8  pad[5];
 };
 
+extern void alternative_instructions(void);
 extern void apply_alternatives(struct alt_instr *start, struct alt_instr *end);
 
 struct module;
Index: linux/include/asm-x86_64/bugs.h
===================================================================
--- linux.orig/include/asm-x86_64/bugs.h
+++ linux/include/asm-x86_64/bugs.h
@@ -1,28 +1,6 @@
-/*
- *  include/asm-x86_64/bugs.h
- *
- *  Copyright (C) 1994  Linus Torvalds
- *  Copyright (C) 2000  SuSE
- *
- * This is included by init/main.c to check for architecture-dependent bugs.
- *
- * Needs:
- *	void check_bugs(void);
- */
+#ifndef _ASM_X86_64_BUGS_H
+#define _ASM_X86_64_BUGS_H
 
-#include <asm/processor.h>
-#include <asm/i387.h>
-#include <asm/msr.h>
-#include <asm/pda.h>
+void check_bugs(void);
 
-extern void alternative_instructions(void);
-
-static void __init check_bugs(void)
-{
-	identify_cpu(&boot_cpu_data);
-#if !defined(CONFIG_SMP)
-	printk("CPU: ");
-	print_cpu_info(&boot_cpu_data);
-#endif
-	alternative_instructions(); 
-}
+#endif	/* _ASM_X86_64_BUGS_H */

[PATCH] [15/26] x86: Don't use MWAIT on AMD Family 10

[Andi Kleen]

It doesn't put the CPU into deeper sleep states, so it's better to use the standard
idle loop to save power. But allow to reenable it anyways for benchmarking.

I also removed the obsolete idle=halt on i386

Cc: andreas.herrmann@amd.com

Signed-off-by: Andi Kleen <ak@suse.de>

---
 Documentation/kernel-parameters.txt |   11 +++++++++--
 arch/i386/kernel/cpu/amd.c          |    5 +++++
 arch/i386/kernel/process.c          |   17 ++++++++---------
 arch/x86_64/kernel/process.c        |   12 +++++++-----
 arch/x86_64/kernel/setup.c          |    6 ++++++
 include/asm-i386/processor.h        |    2 ++
 include/asm-x86_64/proto.h          |    2 ++
 7 files changed, 39 insertions(+), 16 deletions(-)

Index: linux/Documentation/kernel-parameters.txt
===================================================================
--- linux.orig/Documentation/kernel-parameters.txt
+++ linux/Documentation/kernel-parameters.txt
@@ -673,8 +673,15 @@ and is between 256 and 4096 characters. 
 	idebus=		[HW] (E)IDE subsystem - VLB/PCI bus speed
 			See Documentation/ide.txt.
 
-	idle=		[HW]
-			Format: idle=poll or idle=halt
+	idle=		[X86]
+			Format: idle=poll or idle=mwait
+			Poll forces a polling idle loop that can slightly improves the performance
+			of waking up a idle CPU, but will use a lot of power and make the system
+			run hot. Not recommended.
+			idle=mwait. On systems which support MONITOR/MWAIT but the kernel chose
+			to not use it because it doesn't save as much power as a normal idle
+			loop use the MONITOR/MWAIT idle loop anyways. Performance should be the same
+			as idle=poll.
 
 	ignore_loglevel	[KNL]
 			Ignore loglevel setting - this will print /all/
Index: linux/arch/i386/kernel/cpu/amd.c
===================================================================
--- linux.orig/arch/i386/kernel/cpu/amd.c
+++ linux/arch/i386/kernel/cpu/amd.c
@@ -53,6 +53,8 @@ static __cpuinit int amd_apic_timer_brok
 	return 0;
 }
 
+int force_mwait __cpuinitdata;
+
 static void __cpuinit init_amd(struct cpuinfo_x86 *c)
 {
 	u32 l, h;
@@ -275,6 +277,9 @@ static void __cpuinit init_amd(struct cp
 
 	if (amd_apic_timer_broken())
 		set_bit(X86_FEATURE_LAPIC_TIMER_BROKEN, c->x86_capability);
+
+	if (c->x86 == 0x10 && !force_mwait)
+		clear_bit(X86_FEATURE_MWAIT, c->x86_capability);
 }
 
 static unsigned int __cpuinit amd_size_cache(struct cpuinfo_x86 * c, unsigned int size)
Index: linux/arch/i386/kernel/process.c
===================================================================
--- linux.orig/arch/i386/kernel/process.c
+++ linux/arch/i386/kernel/process.c
@@ -272,25 +272,24 @@ void __devinit select_idle_routine(const
 	}
 }
 
-static int __init idle_setup (char *str)
+static int __init idle_setup(char *str)
 {
-	if (!strncmp(str, "poll", 4)) {
+	if (!strcmp(str, "poll")) {
 		printk("using polling idle threads.\n");
 		pm_idle = poll_idle;
 #ifdef CONFIG_X86_SMP
 		if (smp_num_siblings > 1)
 			printk("WARNING: polling idle and HT enabled, performance may degrade.\n");
 #endif
-	} else if (!strncmp(str, "halt", 4)) {
-		printk("using halt in idle threads.\n");
-		pm_idle = default_idle;
-	}
+	} else if (!strcmp(str, "mwait"))
+		force_mwait = 1;
+	else
+		return -1;
 
 	boot_option_idle_override = 1;
-	return 1;
+	return 0;
 }
-
-__setup("idle=", idle_setup);
+early_param("idle", idle_setup);
 
 void show_regs(struct pt_regs * regs)
 {
Index: linux/arch/x86_64/kernel/process.c
===================================================================
--- linux.orig/arch/x86_64/kernel/process.c
+++ linux/arch/x86_64/kernel/process.c
@@ -288,16 +288,18 @@ void __cpuinit select_idle_routine(const
 
 static int __init idle_setup (char *str)
 {
-	if (!strncmp(str, "poll", 4)) {
+	if (!strcmp(str, "poll")) {
 		printk("using polling idle threads.\n");
 		pm_idle = poll_idle;
-	}
+	} else if (!strcmp(str, "mwait"))
+		force_mwait = 1;
+	else
+		return -1;
 
 	boot_option_idle_override = 1;
-	return 1;
+	return 0;
 }
-
-__setup("idle=", idle_setup);
+early_param("idle", idle_setup);
 
 /* Prints also some state that isn't saved in the pt_regs */ 
 void __show_regs(struct pt_regs * regs)
Index: linux/arch/x86_64/kernel/setup.c
===================================================================
--- linux.orig/arch/x86_64/kernel/setup.c
+++ linux/arch/x86_64/kernel/setup.c
@@ -79,6 +79,8 @@ int bootloader_type;
 
 unsigned long saved_video_mode;
 
+int force_mwait __cpuinitdata;
+
 /* 
  * Early DMI memory
  */
@@ -604,6 +606,10 @@ static void __cpuinit init_amd(struct cp
 
 	/* RDTSC can be speculated around */
 	clear_bit(X86_FEATURE_SYNC_RDTSC, &c->x86_capability);
+
+	/* Family 10 doesn't support C states in MWAIT so don't use it */
+	if (c->x86 == 0x10 && !force_mwait)
+		clear_bit(X86_FEATURE_MWAIT, &c->x86_capability);
 }
 
 static void __cpuinit detect_ht(struct cpuinfo_x86 *c)
Index: linux/include/asm-i386/processor.h
===================================================================
--- linux.orig/include/asm-i386/processor.h
+++ linux/include/asm-i386/processor.h
@@ -779,4 +779,6 @@ extern int sysenter_setup(void);
 extern void cpu_set_gdt(int);
 extern void cpu_init(void);
 
+extern int force_mwait;
+
 #endif /* __ASM_I386_PROCESSOR_H */
Index: linux/include/asm-x86_64/proto.h
===================================================================
--- linux.orig/include/asm-x86_64/proto.h
+++ linux/include/asm-x86_64/proto.h
@@ -119,6 +119,8 @@ extern int gsi_irq_sharing(int gsi);
 
 extern void smp_local_timer_interrupt(void);
 
+extern int force_mwait;
+
 long do_arch_prctl(struct task_struct *task, int code, unsigned long addr);
 
 void i8254_timer_resume(void);

[PATCH] [16/26] i386: Enable machine check for AMD Family 10

[Andi Kleen]

From: Joachim Deguara <joachim.deguara@amd.com>

We don't check for any specific family because the code is generic
to all systems supporting the Intel machine check architecture.
Just check the CPUID bit instead

Signed-off-by: Andi Kleen <ak@suse.de>

---
 arch/i386/kernel/cpu/mcheck/mce.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux/arch/i386/kernel/cpu/mcheck/mce.c
===================================================================
--- linux.orig/arch/i386/kernel/cpu/mcheck/mce.c
+++ linux/arch/i386/kernel/cpu/mcheck/mce.c
@@ -38,7 +38,7 @@ void mcheck_init(struct cpuinfo_x86 *c)
 
 	switch (c->x86_vendor) {
 		case X86_VENDOR_AMD:
-			if (c->x86==6 || c->x86==15)
+			if (boot_cpu_has(X86_FEATURE_MCA))
 				amd_mcheck_init(c);
 			break;
 

[PATCH] [17/26] i386: Use menuconfig objects - APM

[Andi Kleen]

From: Jan Engelhardt <jengelh@linux01.gwdg.de>

(I hope Andi is the right one to Cc, otherwise please add, thanks!)


Use menuconfigs instead of menus, so the whole menu can be disabled at        
once instead of going through all options.

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Andi Kleen <ak@suse.de>

---
 arch/i386/Kconfig |   17 +++++------------
 1 file changed, 5 insertions(+), 12 deletions(-)

Index: linux/arch/i386/Kconfig
===================================================================
--- linux.orig/arch/i386/Kconfig
+++ linux/arch/i386/Kconfig
@@ -915,12 +915,9 @@ source kernel/power/Kconfig
 
 source "drivers/acpi/Kconfig"
 
-menu "APM (Advanced Power Management) BIOS Support"
-depends on PM && !X86_VISWS
-
-config APM
+menuconfig APM
 	tristate "APM (Advanced Power Management) BIOS support"
-	depends on PM
+	depends on PM && !X86_VISWS
 	---help---
 	  APM is a BIOS specification for saving power using several different
 	  techniques. This is mostly useful for battery powered laptops with
@@ -977,9 +974,10 @@ config APM
 	  To compile this driver as a module, choose M here: the
 	  module will be called apm.
 
+if APM
+
 config APM_IGNORE_USER_SUSPEND
 	bool "Ignore USER SUSPEND"
-	depends on APM
 	help
 	  This option will ignore USER SUSPEND requests. On machines with a
 	  compliant APM BIOS, you want to say N. However, on the NEC Versa M
@@ -987,7 +985,6 @@ config APM_IGNORE_USER_SUSPEND
 
 config APM_DO_ENABLE
 	bool "Enable PM at boot time"
-	depends on APM
 	---help---
 	  Enable APM features at boot time. From page 36 of the APM BIOS
 	  specification: "When disabled, the APM BIOS does not automatically
@@ -1005,7 +1002,6 @@ config APM_DO_ENABLE
 
 config APM_CPU_IDLE
 	bool "Make CPU Idle calls when idle"
-	depends on APM
 	help
 	  Enable calls to APM CPU Idle/CPU Busy inside the kernel's idle loop.
 	  On some machines, this can activate improved power savings, such as
@@ -1017,7 +1013,6 @@ config APM_CPU_IDLE
 
 config APM_DISPLAY_BLANK
 	bool "Enable console blanking using APM"
-	depends on APM
 	help
 	  Enable console blanking using the APM. Some laptops can use this to
 	  turn off the LCD backlight when the screen blanker of the Linux
@@ -1031,7 +1026,6 @@ config APM_DISPLAY_BLANK
 
 config APM_ALLOW_INTS
 	bool "Allow interrupts during APM BIOS calls"
-	depends on APM
 	help
 	  Normally we disable external interrupts while we are making calls to
 	  the APM BIOS as a measure to lessen the effects of a badly behaving
@@ -1042,13 +1036,12 @@ config APM_ALLOW_INTS
 
 config APM_REAL_MODE_POWER_OFF
 	bool "Use real mode APM BIOS call to power off"
-	depends on APM
 	help
 	  Use real mode APM BIOS calls to switch off the computer. This is
 	  a work-around for a number of buggy BIOSes. Switch this option on if
 	  your computer crashes instead of powering off properly.
 
-endmenu
+endif # APM
 
 source "arch/i386/kernel/cpu/cpufreq/Kconfig"
 

[PATCH] [18/26] i386: Update smp_call_function* comments

[Andi Kleen]

From: Jeremy Fitzhardinge <jeremy@goop.org>
Update documentation for i386 smp_call_function* functions.

As reported by Randy Dunlap <rdunlap@xenotime.net>

[ I've posted this before but it seems to have been lost along the way. ]

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Randy Dunlap <rdunlap@xenotime.net>

---
 arch/i386/kernel/smp.c |   25 +++++++++++++++----------
 1 file changed, 15 insertions(+), 10 deletions(-)

===================================================================
Index: linux/arch/i386/kernel/smp.c
===================================================================
--- linux.orig/arch/i386/kernel/smp.c
+++ linux/arch/i386/kernel/smp.c
@@ -554,8 +554,10 @@ static void __smp_call_function(void (*f
  * @info: An arbitrary pointer to pass to the function.
  * @wait: If true, wait (atomically) until function has completed on other CPUs.
  *
- * Returns 0 on success, else a negative status code. Does not return until
- * remote CPUs are nearly ready to execute <<func>> or are or have finished.
+  * Returns 0 on success, else a negative status code.
+ *
+ * If @wait is true, then returns once @func has returned; otherwise
+ * it returns just before the target cpu calls @func.
  *
  * You must not call this function with disabled interrupts or from a
  * hardware interrupt handler or from a bottom half handler.
@@ -617,11 +619,13 @@ int native_smp_call_function_mask(cpumas
  * smp_call_function(): Run a function on all other CPUs.
  * @func: The function to run. This must be fast and non-blocking.
  * @info: An arbitrary pointer to pass to the function.
- * @nonatomic: currently unused.
+ * @nonatomic: Unused.
  * @wait: If true, wait (atomically) until function has completed on other CPUs.
  *
- * Returns 0 on success, else a negative status code. Does not return until
- * remote CPUs are nearly ready to execute <<func>> or are or have executed.
+ * Returns 0 on success, else a negative status code.
+ *
+ * If @wait is true, then returns once @func has returned; otherwise
+ * it returns just before the target cpu calls @func.
  *
  * You must not call this function with disabled interrupts or from a
  * hardware interrupt handler or from a bottom half handler.
@@ -633,17 +637,18 @@ int smp_call_function(void (*func) (void
 }
 EXPORT_SYMBOL(smp_call_function);
 
-/*
+/**
  * smp_call_function_single - Run a function on another CPU
+ * @cpu: The target CPU.  Cannot be the calling CPU.
  * @func: The function to run. This must be fast and non-blocking.
  * @info: An arbitrary pointer to pass to the function.
- * @nonatomic: Currently unused.
+ * @nonatomic: Unused.
  * @wait: If true, wait until function has completed on other CPUs.
  *
- * Retrurns 0 on success, else a negative status code.
+ * Returns 0 on success, else a negative status code.
  *
- * Does not return until the remote CPU is nearly ready to execute <func>
- * or is or has executed.
+ * If @wait is true, then returns once @func has returned; otherwise
+ * it returns just before the target cpu calls @func.
  */
 int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
 			     int nonatomic, int wait)

[PATCH] [19/26] i386: Enable bank 0 on non K7 Athlon

[Andi Kleen]

As a bug workaround bank 0 on K7s is normally disabled, but no need
to do that on other AMD CPUs.

Cc: davej@redhat.com

Signed-off-by: Andi Kleen <ak@suse.de>

---
 arch/i386/kernel/cpu/mcheck/k7.c |   10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

Index: linux/arch/i386/kernel/cpu/mcheck/k7.c
===================================================================
--- linux.orig/arch/i386/kernel/cpu/mcheck/k7.c
+++ linux/arch/i386/kernel/cpu/mcheck/k7.c
@@ -82,9 +82,13 @@ void amd_mcheck_init(struct cpuinfo_x86 
 	nr_mce_banks = l & 0xff;
 
 	/* Clear status for MC index 0 separately, we don't touch CTL,
-	 * as some Athlons cause spurious MCEs when its enabled. */
-	wrmsr (MSR_IA32_MC0_STATUS, 0x0, 0x0);
-	for (i=1; i<nr_mce_banks; i++) {
+	 * as some K7 Athlons cause spurious MCEs when its enabled. */
+	if (boot_cpu_data.x86 == 6) {
+		wrmsr (MSR_IA32_MC0_STATUS, 0x0, 0x0);
+		i = 1;
+	} else
+		i = 0;
+	for (; i<nr_mce_banks; i++) {
 		wrmsr (MSR_IA32_MC0_CTL+4*i, 0xffffffff, 0xffffffff);
 		wrmsr (MSR_IA32_MC0_STATUS+4*i, 0x0, 0x0);
 	}

Re: [PATCH] [19/26] i386: Enable bank 0 on non K7 Athlon

[Dave Jones]

On Mon, Apr 30, 2007 at 01:46:28AM +0200, Andi Kleen wrote:
 > 
 > As a bug workaround bank 0 on K7s is normally disabled, but no need
 > to do that on other AMD CPUs.
 > 
 > Cc: davej@redhat.com
 > 
 > Signed-off-by: Andi Kleen <ak@suse.de>
 
ACK, looks good to me.

thanks,

	Dave

-- 
http://www.codemonkey.org.uk

[PATCH] [20/26] x86: Allow percpu variables to be page-aligned

[Andi Kleen]

From: Jeremy Fitzhardinge <jeremy@goop.org>
Let's allow page-alignment in general for per-cpu data (wanted by Xen, and
Ingo suggested KVM as well).

Because larger alignments can use more room, we increase the max per-cpu
memory to 64k rather than 32k: it's getting a little tight.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 arch/alpha/kernel/vmlinux.lds.S   |    2 +-
 arch/arm/kernel/vmlinux.lds.S     |    2 +-
 arch/cris/arch-v32/vmlinux.lds.S  |    1 +
 arch/frv/kernel/vmlinux.lds.S     |    1 +
 arch/i386/kernel/vmlinux.lds.S    |    2 +-
 arch/m32r/kernel/vmlinux.lds.S    |    2 +-
 arch/mips/kernel/vmlinux.lds.S    |    2 +-
 arch/parisc/kernel/vmlinux.lds.S  |    2 +-
 arch/powerpc/kernel/setup_64.c    |    4 ++--
 arch/powerpc/kernel/vmlinux.lds.S |    6 +-----
 arch/ppc/kernel/vmlinux.lds.S     |    2 +-
 arch/s390/kernel/vmlinux.lds.S    |    2 +-
 arch/sh/kernel/vmlinux.lds.S      |    2 +-
 arch/sh64/kernel/vmlinux.lds.S    |    2 +-
 arch/sparc/kernel/vmlinux.lds.S   |    2 +-
 arch/sparc64/kernel/smp.c         |    6 +++---
 arch/x86_64/kernel/setup64.c      |    4 ++--
 arch/x86_64/kernel/vmlinux.lds.S  |    2 +-
 arch/xtensa/kernel/vmlinux.lds.S  |    2 +-
 init/main.c                       |    8 ++------
 kernel/module.c                   |    8 ++++----
 21 files changed, 29 insertions(+), 35 deletions(-)

===================================================================
Index: linux/arch/alpha/kernel/vmlinux.lds.S
===================================================================
--- linux.orig/arch/alpha/kernel/vmlinux.lds.S
+++ linux/arch/alpha/kernel/vmlinux.lds.S
@@ -69,7 +69,7 @@ SECTIONS
   . = ALIGN(8);
   SECURITY_INIT
 
-  . = ALIGN(64);
+  . = ALIGN(8192);
   __per_cpu_start = .;
   .data.percpu : { *(.data.percpu) }
   __per_cpu_end = .;
Index: linux/arch/arm/kernel/vmlinux.lds.S
===================================================================
--- linux.orig/arch/arm/kernel/vmlinux.lds.S
+++ linux/arch/arm/kernel/vmlinux.lds.S
@@ -59,7 +59,7 @@ SECTIONS
 			usr/built-in.o(.init.ramfs)
 		__initramfs_end = .;
 #endif
-		. = ALIGN(64);
+		. = ALIGN(4096);
 		__per_cpu_start = .;
 			*(.data.percpu)
 		__per_cpu_end = .;
Index: linux/arch/cris/arch-v32/vmlinux.lds.S
===================================================================
--- linux.orig/arch/cris/arch-v32/vmlinux.lds.S
+++ linux/arch/cris/arch-v32/vmlinux.lds.S
@@ -91,6 +91,7 @@ SECTIONS
 	}
 	SECURITY_INIT
 
+	. =  ALIGN (8192);
 	__per_cpu_start = .;
 	.data.percpu  : { *(.data.percpu) }
 	__per_cpu_end = .;
Index: linux/arch/frv/kernel/vmlinux.lds.S
===================================================================
--- linux.orig/arch/frv/kernel/vmlinux.lds.S
+++ linux/arch/frv/kernel/vmlinux.lds.S
@@ -57,6 +57,7 @@ SECTIONS
   __alt_instructions_end = .;
  .altinstr_replacement : { *(.altinstr_replacement) }
 
+  . = ALIGN(4096);
   __per_cpu_start = .;
   .data.percpu  : { *(.data.percpu) }
   __per_cpu_end = .;
Index: linux/arch/i386/kernel/vmlinux.lds.S
===================================================================
--- linux.orig/arch/i386/kernel/vmlinux.lds.S
+++ linux/arch/i386/kernel/vmlinux.lds.S
@@ -194,7 +194,7 @@ SECTIONS
 	__initramfs_end = .;
   }
 #endif
-  . = ALIGN(L1_CACHE_BYTES);
+  . = ALIGN(4096);
   .data.percpu  : AT(ADDR(.data.percpu) - LOAD_OFFSET) {
 	__per_cpu_start = .;
 	*(.data.percpu)
Index: linux/arch/m32r/kernel/vmlinux.lds.S
===================================================================
--- linux.orig/arch/m32r/kernel/vmlinux.lds.S
+++ linux/arch/m32r/kernel/vmlinux.lds.S
@@ -110,7 +110,7 @@ SECTIONS
   __initramfs_end = .;
 #endif
 
-  . = ALIGN(32);
+  . = ALIGN(4096);
   __per_cpu_start = .;
   .data.percpu  : { *(.data.percpu) }
   __per_cpu_end = .;
Index: linux/arch/mips/kernel/vmlinux.lds.S
===================================================================
--- linux.orig/arch/mips/kernel/vmlinux.lds.S
+++ linux/arch/mips/kernel/vmlinux.lds.S
@@ -119,7 +119,7 @@ SECTIONS
   .init.ramfs : { *(.init.ramfs) }
   __initramfs_end = .;
 #endif
-  . = ALIGN(32);
+  . = ALIGN(_PAGE_SIZE);
   __per_cpu_start = .;
   .data.percpu  : { *(.data.percpu) }
   __per_cpu_end = .;
Index: linux/arch/parisc/kernel/vmlinux.lds.S
===================================================================
--- linux.orig/arch/parisc/kernel/vmlinux.lds.S
+++ linux/arch/parisc/kernel/vmlinux.lds.S
@@ -181,7 +181,7 @@ SECTIONS
   .init.ramfs : { *(.init.ramfs) }
   __initramfs_end = .;
 #endif
-  . = ALIGN(32);
+  . = ALIGN(ASM_PAGE_SIZE);
   __per_cpu_start = .;
   .data.percpu  : { *(.data.percpu) }
   __per_cpu_end = .;
Index: linux/arch/powerpc/kernel/setup_64.c
===================================================================
--- linux.orig/arch/powerpc/kernel/setup_64.c
+++ linux/arch/powerpc/kernel/setup_64.c
@@ -583,14 +583,14 @@ void __init setup_per_cpu_areas(void)
 	char *ptr;
 
 	/* Copy section for each CPU (we discard the original) */
-	size = ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES);
+	size = ALIGN(__per_cpu_end - __per_cpu_start, PAGE_SIZE);
 #ifdef CONFIG_MODULES
 	if (size < PERCPU_ENOUGH_ROOM)
 		size = PERCPU_ENOUGH_ROOM;
 #endif
 
 	for_each_possible_cpu(i) {
-		ptr = alloc_bootmem_node(NODE_DATA(cpu_to_node(i)), size);
+		ptr = alloc_bootmem_pages_node(NODE_DATA(cpu_to_node(i)), size);
 		if (!ptr)
 			panic("Cannot allocate cpu data for CPU %d\n", i);
 
Index: linux/arch/powerpc/kernel/vmlinux.lds.S
===================================================================
--- linux.orig/arch/powerpc/kernel/vmlinux.lds.S
+++ linux/arch/powerpc/kernel/vmlinux.lds.S
@@ -139,11 +139,7 @@ SECTIONS
 		__initramfs_end = .;
 	}
 #endif
-#ifdef CONFIG_PPC32
-	. = ALIGN(32);
-#else
-	. = ALIGN(128);
-#endif
+	. = ALIGN(PAGE_SIZE);
 	.data.percpu : {
 		__per_cpu_start = .;
 		*(.data.percpu)
Index: linux/arch/ppc/kernel/vmlinux.lds.S
===================================================================
--- linux.orig/arch/ppc/kernel/vmlinux.lds.S
+++ linux/arch/ppc/kernel/vmlinux.lds.S
@@ -130,7 +130,7 @@ SECTIONS
   __ftr_fixup : { *(__ftr_fixup) }
   __stop___ftr_fixup = .;
 
-  . = ALIGN(32);
+  . = ALIGN(4096);
   __per_cpu_start = .;
   .data.percpu  : { *(.data.percpu) }
   __per_cpu_end = .;
Index: linux/arch/s390/kernel/vmlinux.lds.S
===================================================================
--- linux.orig/arch/s390/kernel/vmlinux.lds.S
+++ linux/arch/s390/kernel/vmlinux.lds.S
@@ -107,7 +107,7 @@ SECTIONS
   . = ALIGN(2);
   __initramfs_end = .;
 #endif
-  . = ALIGN(256);
+  . = ALIGN(4096);
   __per_cpu_start = .;
   .data.percpu  : { *(.data.percpu) }
   __per_cpu_end = .;
Index: linux/arch/sh/kernel/vmlinux.lds.S
===================================================================
--- linux.orig/arch/sh/kernel/vmlinux.lds.S
+++ linux/arch/sh/kernel/vmlinux.lds.S
@@ -54,7 +54,7 @@ SECTIONS
   . = ALIGN(PAGE_SIZE);
   .data.page_aligned : { *(.data.page_aligned) }
 
-  . = ALIGN(L1_CACHE_BYTES);
+  . = ALIGN(PAGE_SIZE);
   __per_cpu_start = .;
   .data.percpu : { *(.data.percpu) }
   __per_cpu_end = .;
Index: linux/arch/sh64/kernel/vmlinux.lds.S
===================================================================
--- linux.orig/arch/sh64/kernel/vmlinux.lds.S
+++ linux/arch/sh64/kernel/vmlinux.lds.S
@@ -85,7 +85,7 @@ SECTIONS
   . = ALIGN(PAGE_SIZE);
   .data.page_aligned : C_PHYS(.data.page_aligned) { *(.data.page_aligned) }
 
-  . = ALIGN(L1_CACHE_BYTES);
+  . = ALIGN(PAGE_SIZE);
   __per_cpu_start = .;
   .data.percpu : C_PHYS(.data.percpu) { *(.data.percpu) }
   __per_cpu_end = . ;
Index: linux/arch/sparc/kernel/vmlinux.lds.S
===================================================================
--- linux.orig/arch/sparc/kernel/vmlinux.lds.S
+++ linux/arch/sparc/kernel/vmlinux.lds.S
@@ -65,7 +65,7 @@ SECTIONS
   __initramfs_end = .;
 #endif
 
-  . = ALIGN(32);
+  . = ALIGN(4096);
   __per_cpu_start = .;
   .data.percpu  : { *(.data.percpu) }
   __per_cpu_end = .;
Index: linux/arch/sparc64/kernel/smp.c
===================================================================
--- linux.orig/arch/sparc64/kernel/smp.c
+++ linux/arch/sparc64/kernel/smp.c
@@ -1343,11 +1343,11 @@ void __init setup_per_cpu_areas(void)
 	/* Copy section for each CPU (we discard the original) */
 	goal = PERCPU_ENOUGH_ROOM;
 
-	__per_cpu_shift = 0;
-	for (size = 1UL; size < goal; size <<= 1UL)
+	__per_cpu_shift = PAGE_SHIFT;
+	for (size = PAGE_SIZE; size < goal; size <<= 1UL)
 		__per_cpu_shift++;
 
-	ptr = alloc_bootmem(size * NR_CPUS);
+	ptr = alloc_bootmem_pages(size * NR_CPUS);
 
 	__per_cpu_base = ptr - __per_cpu_start;
 
Index: linux/arch/x86_64/kernel/setup64.c
===================================================================
--- linux.orig/arch/x86_64/kernel/setup64.c
+++ linux/arch/x86_64/kernel/setup64.c
@@ -103,9 +103,9 @@ void __init setup_per_cpu_areas(void)
 		if (!NODE_DATA(cpu_to_node(i))) {
 			printk("cpu with no node %d, num_online_nodes %d\n",
 			       i, num_online_nodes());
-			ptr = alloc_bootmem(size);
+			ptr = alloc_bootmem_pages(size);
 		} else { 
-			ptr = alloc_bootmem_node(NODE_DATA(cpu_to_node(i)), size);
+			ptr = alloc_bootmem_pages_node(NODE_DATA(cpu_to_node(i)), size);
 		}
 		if (!ptr)
 			panic("Cannot allocate cpu data for CPU %d\n", i);
Index: linux/arch/x86_64/kernel/vmlinux.lds.S
===================================================================
--- linux.orig/arch/x86_64/kernel/vmlinux.lds.S
+++ linux/arch/x86_64/kernel/vmlinux.lds.S
@@ -195,7 +195,7 @@ SECTIONS
   __initramfs_end = .;
 #endif
 
-    . = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
+  . = ALIGN(4096);
   __per_cpu_start = .;
   .data.percpu  : AT(ADDR(.data.percpu) - LOAD_OFFSET) { *(.data.percpu) }
   __per_cpu_end = .;
Index: linux/arch/xtensa/kernel/vmlinux.lds.S
===================================================================
--- linux.orig/arch/xtensa/kernel/vmlinux.lds.S
+++ linux/arch/xtensa/kernel/vmlinux.lds.S
@@ -198,7 +198,7 @@ SECTIONS
   __ftr_fixup : { *(__ftr_fixup) }
   __stop___ftr_fixup = .;
 
-  . = ALIGN(32);
+  . = ALIGN(4096);
   __per_cpu_start = .;
   .data.percpu  : { *(.data.percpu) }
   __per_cpu_end = .;
Index: linux/init/main.c
===================================================================
--- linux.orig/init/main.c
+++ linux/init/main.c
@@ -369,12 +369,8 @@ static void __init setup_per_cpu_areas(v
 	unsigned long nr_possible_cpus = num_possible_cpus();
 
 	/* Copy section for each CPU (we discard the original) */
-	size = ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES);
-#ifdef CONFIG_MODULES
-	if (size < PERCPU_ENOUGH_ROOM)
-		size = PERCPU_ENOUGH_ROOM;
-#endif
-	ptr = alloc_bootmem(size * nr_possible_cpus);
+	size = ALIGN(PERCPU_ENOUGH_ROOM, PAGE_SIZE);
+	ptr = alloc_bootmem_pages(size * nr_possible_cpus);
 
 	for_each_possible_cpu(i) {
 		__per_cpu_offset[i] = ptr - __per_cpu_start;
Index: linux/kernel/module.c
===================================================================
--- linux.orig/kernel/module.c
+++ linux/kernel/module.c
@@ -346,10 +346,10 @@ static void *percpu_modalloc(unsigned lo
 	unsigned int i;
 	void *ptr;
 
-	if (align > SMP_CACHE_BYTES) {
-		printk(KERN_WARNING "%s: per-cpu alignment %li > %i\n",
-		       name, align, SMP_CACHE_BYTES);
-		align = SMP_CACHE_BYTES;
+	if (align > PAGE_SIZE) {
+		printk(KERN_WARNING "%s: per-cpu alignment %li > %li\n",
+		       name, align, PAGE_SIZE);
+		align = PAGE_SIZE;
 	}
 
 	ptr = __per_cpu_start;

[PATCH] [21/26] x86: Clean up x86 control register and MSR macros (corrected)

[Andi Kleen]

From: "H. Peter Anvin" <hpa@zytor.com>
This patch is based on Rusty's recent cleanup of the EFLAGS-related
macros; it extends the same kind of cleanup to control registers and
MSRs.

It also unifies these between i386 and x86-64; at least with regards
to MSRs, the two had definitely gotten out of sync.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Andi Kleen <ak@suse.de>

---
 include/asm-i386/Kbuild              |    2 
 include/asm-i386/msr-index.h         |  273 ++++++++++++++++++++++++++++++++++
 include/asm-i386/msr.h               |  237 ------------------------------
 include/asm-i386/processor-flags.h   |   65 ++++++++
 include/asm-i386/processor.h         |   35 ----
 include/asm-x86_64/Kbuild            |    3 
 include/asm-x86_64/msr-index.h       |    1 
 include/asm-x86_64/msr.h             |  274 -----------------------------------
 include/asm-x86_64/processor-flags.h |   27 ---
 include/asm-x86_64/processor.h       |   31 ---
 10 files changed, 356 insertions(+), 592 deletions(-)

Index: linux/include/asm-i386/Kbuild
===================================================================
--- linux.orig/include/asm-i386/Kbuild
+++ linux/include/asm-i386/Kbuild
@@ -3,8 +3,10 @@ include include/asm-generic/Kbuild.asm
 header-y += boot.h
 header-y += debugreg.h
 header-y += ldt.h
+header-y += msr-index.h
 header-y += ptrace-abi.h
 header-y += ucontext.h
 
+unifdef-y += msr.h
 unifdef-y += mtrr.h
 unifdef-y += vm86.h
Index: linux/include/asm-i386/msr-index.h
===================================================================
--- /dev/null
+++ linux/include/asm-i386/msr-index.h
@@ -0,0 +1,273 @@
+#ifndef __ASM_MSR_INDEX_H
+#define __ASM_MSR_INDEX_H
+
+/* CPU model specific register (MSR) numbers */
+
+/* x86-64 specific MSRs */
+#define MSR_EFER		0xc0000080 /* extended feature register */
+#define MSR_STAR		0xc0000081 /* legacy mode SYSCALL target */
+#define MSR_LSTAR		0xc0000082 /* long mode SYSCALL target */
+#define MSR_CSTAR		0xc0000083 /* compat mode SYSCALL target */
+#define MSR_SYSCALL_MASK	0xc0000084 /* EFLAGS mask for syscall */
+#define MSR_FS_BASE		0xc0000100 /* 64bit FS base */
+#define MSR_GS_BASE		0xc0000101 /* 64bit GS base */
+#define MSR_KERNEL_GS_BASE	0xc0000102 /* SwapGS GS shadow */
+
+/* EFER bits: */
+#define _EFER_SCE		0  /* SYSCALL/SYSRET */
+#define _EFER_LME		8  /* Long mode enable */
+#define _EFER_LMA		10 /* Long mode active (read-only) */
+#define _EFER_NX		11 /* No execute enable */
+
+#define EFER_SCE		(1<<_EFER_SCE)
+#define EFER_LME		(1<<_EFER_LME)
+#define EFER_LMA		(1<<_EFER_LMA)
+#define EFER_NX			(1<<_EFER_NX)
+
+/* Intel MSRs. Some also available on other CPUs */
+#define MSR_IA32_PERFCTR0		0x000000c1
+#define MSR_IA32_PERFCTR1		0x000000c2
+#define MSR_FSB_FREQ			0x000000cd
+
+#define MSR_MTRRcap			0x000000fe
+#define MSR_IA32_BBL_CR_CTL		0x00000119
+
+#define MSR_IA32_SYSENTER_CS		0x00000174
+#define MSR_IA32_SYSENTER_ESP		0x00000175
+#define MSR_IA32_SYSENTER_EIP		0x00000176
+
+#define MSR_IA32_MCG_CAP		0x00000179
+#define MSR_IA32_MCG_STATUS		0x0000017a
+#define MSR_IA32_MCG_CTL		0x0000017b
+
+#define MSR_IA32_PEBS_ENABLE		0x000003f1
+#define MSR_IA32_DS_AREA		0x00000600
+#define MSR_IA32_PERF_CAPABILITIES	0x00000345
+
+#define MSR_MTRRfix64K_00000		0x00000250
+#define MSR_MTRRfix16K_80000		0x00000258
+#define MSR_MTRRfix16K_A0000		0x00000259
+#define MSR_MTRRfix4K_C0000		0x00000268
+#define MSR_MTRRfix4K_C8000		0x00000269
+#define MSR_MTRRfix4K_D0000		0x0000026a
+#define MSR_MTRRfix4K_D8000		0x0000026b
+#define MSR_MTRRfix4K_E0000		0x0000026c
+#define MSR_MTRRfix4K_E8000		0x0000026d
+#define MSR_MTRRfix4K_F0000		0x0000026e
+#define MSR_MTRRfix4K_F8000		0x0000026f
+#define MSR_MTRRdefType			0x000002ff
+
+#define MSR_IA32_DEBUGCTLMSR		0x000001d9
+#define MSR_IA32_LASTBRANCHFROMIP	0x000001db
+#define MSR_IA32_LASTBRANCHTOIP		0x000001dc
+#define MSR_IA32_LASTINTFROMIP		0x000001dd
+#define MSR_IA32_LASTINTTOIP		0x000001de
+
+#define MSR_IA32_MC0_CTL		0x00000400
+#define MSR_IA32_MC0_STATUS		0x00000401
+#define MSR_IA32_MC0_ADDR		0x00000402
+#define MSR_IA32_MC0_MISC		0x00000403
+
+#define MSR_P6_PERFCTR0			0x000000c1
+#define MSR_P6_PERFCTR1			0x000000c2
+#define MSR_P6_EVNTSEL0			0x00000186
+#define MSR_P6_EVNTSEL1			0x00000187
+
+/* K7/K8 MSRs. Not complete. See the architecture manual for a more
+   complete list. */
+#define MSR_K7_EVNTSEL0			0xc0010000
+#define MSR_K7_PERFCTR0			0xc0010004
+#define MSR_K7_EVNTSEL1			0xc0010001
+#define MSR_K7_PERFCTR1			0xc0010005
+#define MSR_K7_EVNTSEL2			0xc0010002
+#define MSR_K7_PERFCTR2			0xc0010006
+#define MSR_K7_EVNTSEL3			0xc0010003
+#define MSR_K7_PERFCTR3			0xc0010007
+#define MSR_K8_TOP_MEM1			0xc001001a
+#define MSR_K7_CLK_CTL			0xc001001b
+#define MSR_K8_TOP_MEM2			0xc001001d
+#define MSR_K8_SYSCFG			0xc0010010
+#define MSR_K7_HWCR			0xc0010015
+#define MSR_K8_HWCR			0xc0010015
+#define MSR_K7_FID_VID_CTL		0xc0010041
+#define MSR_K7_FID_VID_STATUS		0xc0010042
+#define MSR_K8_ENABLE_C1E		0xc0010055
+
+/* K6 MSRs */
+#define MSR_K6_EFER			0xc0000080
+#define MSR_K6_STAR			0xc0000081
+#define MSR_K6_WHCR			0xc0000082
+#define MSR_K6_UWCCR			0xc0000085
+#define MSR_K6_EPMR			0xc0000086
+#define MSR_K6_PSOR			0xc0000087
+#define MSR_K6_PFIR			0xc0000088
+
+/* Centaur-Hauls/IDT defined MSRs. */
+#define MSR_IDT_FCR1			0x00000107
+#define MSR_IDT_FCR2			0x00000108
+#define MSR_IDT_FCR3			0x00000109
+#define MSR_IDT_FCR4			0x0000010a
+
+#define MSR_IDT_MCR0			0x00000110
+#define MSR_IDT_MCR1			0x00000111
+#define MSR_IDT_MCR2			0x00000112
+#define MSR_IDT_MCR3			0x00000113
+#define MSR_IDT_MCR4			0x00000114
+#define MSR_IDT_MCR5			0x00000115
+#define MSR_IDT_MCR6			0x00000116
+#define MSR_IDT_MCR7			0x00000117
+#define MSR_IDT_MCR_CTRL		0x00000120
+
+/* VIA Cyrix defined MSRs*/
+#define MSR_VIA_FCR			0x00001107
+#define MSR_VIA_LONGHAUL		0x0000110a
+#define MSR_VIA_RNG			0x0000110b
+#define MSR_VIA_BCR2			0x00001147
+
+/* Transmeta defined MSRs */
+#define MSR_TMTA_LONGRUN_CTRL		0x80868010
+#define MSR_TMTA_LONGRUN_FLAGS		0x80868011
+#define MSR_TMTA_LRTI_READOUT		0x80868018
+#define MSR_TMTA_LRTI_VOLT_MHZ		0x8086801a
+
+/* Intel defined MSRs. */
+#define MSR_IA32_P5_MC_ADDR		0x00000000
+#define MSR_IA32_P5_MC_TYPE		0x00000001
+#define MSR_IA32_TSC			0x00000010
+#define MSR_IA32_PLATFORM_ID		0x00000017
+#define MSR_IA32_EBL_CR_POWERON		0x0000002a
+
+#define MSR_IA32_APICBASE		0x0000001b
+#define MSR_IA32_APICBASE_BSP		(1<<8)
+#define MSR_IA32_APICBASE_ENABLE	(1<<11)
+#define MSR_IA32_APICBASE_BASE		(0xfffff<<12)
+
+#define MSR_IA32_UCODE_WRITE		0x00000079
+#define MSR_IA32_UCODE_REV		0x0000008b
+
+#define MSR_IA32_PERF_STATUS		0x00000198
+#define MSR_IA32_PERF_CTL		0x00000199
+
+#define MSR_IA32_MPERF			0x000000e7
+#define MSR_IA32_APERF			0x000000e8
+
+#define MSR_IA32_THERM_CONTROL		0x0000019a
+#define MSR_IA32_THERM_INTERRUPT	0x0000019b
+#define MSR_IA32_THERM_STATUS		0x0000019c
+#define MSR_IA32_MISC_ENABLE		0x000001a0
+
+/* Intel Model 6 */
+#define MSR_P6_EVNTSEL0			0x00000186
+#define MSR_P6_EVNTSEL1			0x00000187
+
+/* P4/Xeon+ specific */
+#define MSR_IA32_MCG_EAX		0x00000180
+#define MSR_IA32_MCG_EBX		0x00000181
+#define MSR_IA32_MCG_ECX		0x00000182
+#define MSR_IA32_MCG_EDX		0x00000183
+#define MSR_IA32_MCG_ESI		0x00000184
+#define MSR_IA32_MCG_EDI		0x00000185
+#define MSR_IA32_MCG_EBP		0x00000186
+#define MSR_IA32_MCG_ESP		0x00000187
+#define MSR_IA32_MCG_EFLAGS		0x00000188
+#define MSR_IA32_MCG_EIP		0x00000189
+#define MSR_IA32_MCG_RESERVED		0x0000018a
+
+/* Pentium IV performance counter MSRs */
+#define MSR_P4_BPU_PERFCTR0		0x00000300
+#define MSR_P4_BPU_PERFCTR1		0x00000301
+#define MSR_P4_BPU_PERFCTR2		0x00000302
+#define MSR_P4_BPU_PERFCTR3		0x00000303
+#define MSR_P4_MS_PERFCTR0		0x00000304
+#define MSR_P4_MS_PERFCTR1		0x00000305
+#define MSR_P4_MS_PERFCTR2		0x00000306
+#define MSR_P4_MS_PERFCTR3		0x00000307
+#define MSR_P4_FLAME_PERFCTR0		0x00000308
+#define MSR_P4_FLAME_PERFCTR1		0x00000309
+#define MSR_P4_FLAME_PERFCTR2		0x0000030a
+#define MSR_P4_FLAME_PERFCTR3		0x0000030b
+#define MSR_P4_IQ_PERFCTR0		0x0000030c
+#define MSR_P4_IQ_PERFCTR1		0x0000030d
+#define MSR_P4_IQ_PERFCTR2		0x0000030e
+#define MSR_P4_IQ_PERFCTR3		0x0000030f
+#define MSR_P4_IQ_PERFCTR4		0x00000310
+#define MSR_P4_IQ_PERFCTR5		0x00000311
+#define MSR_P4_BPU_CCCR0		0x00000360
+#define MSR_P4_BPU_CCCR1		0x00000361
+#define MSR_P4_BPU_CCCR2		0x00000362
+#define MSR_P4_BPU_CCCR3		0x00000363
+#define MSR_P4_MS_CCCR0			0x00000364
+#define MSR_P4_MS_CCCR1			0x00000365
+#define MSR_P4_MS_CCCR2			0x00000366
+#define MSR_P4_MS_CCCR3			0x00000367
+#define MSR_P4_FLAME_CCCR0		0x00000368
+#define MSR_P4_FLAME_CCCR1		0x00000369
+#define MSR_P4_FLAME_CCCR2		0x0000036a
+#define MSR_P4_FLAME_CCCR3		0x0000036b
+#define MSR_P4_IQ_CCCR0			0x0000036c
+#define MSR_P4_IQ_CCCR1			0x0000036d
+#define MSR_P4_IQ_CCCR2			0x0000036e
+#define MSR_P4_IQ_CCCR3			0x0000036f
+#define MSR_P4_IQ_CCCR4			0x00000370
+#define MSR_P4_IQ_CCCR5			0x00000371
+#define MSR_P4_ALF_ESCR0		0x000003ca
+#define MSR_P4_ALF_ESCR1		0x000003cb
+#define MSR_P4_BPU_ESCR0		0x000003b2
+#define MSR_P4_BPU_ESCR1		0x000003b3
+#define MSR_P4_BSU_ESCR0		0x000003a0
+#define MSR_P4_BSU_ESCR1		0x000003a1
+#define MSR_P4_CRU_ESCR0		0x000003b8
+#define MSR_P4_CRU_ESCR1		0x000003b9
+#define MSR_P4_CRU_ESCR2		0x000003cc
+#define MSR_P4_CRU_ESCR3		0x000003cd
+#define MSR_P4_CRU_ESCR4		0x000003e0
+#define MSR_P4_CRU_ESCR5		0x000003e1
+#define MSR_P4_DAC_ESCR0		0x000003a8
+#define MSR_P4_DAC_ESCR1		0x000003a9
+#define MSR_P4_FIRM_ESCR0		0x000003a4
+#define MSR_P4_FIRM_ESCR1		0x000003a5
+#define MSR_P4_FLAME_ESCR0		0x000003a6
+#define MSR_P4_FLAME_ESCR1		0x000003a7
+#define MSR_P4_FSB_ESCR0		0x000003a2
+#define MSR_P4_FSB_ESCR1		0x000003a3
+#define MSR_P4_IQ_ESCR0			0x000003ba
+#define MSR_P4_IQ_ESCR1			0x000003bb
+#define MSR_P4_IS_ESCR0			0x000003b4
+#define MSR_P4_IS_ESCR1			0x000003b5
+#define MSR_P4_ITLB_ESCR0		0x000003b6
+#define MSR_P4_ITLB_ESCR1		0x000003b7
+#define MSR_P4_IX_ESCR0			0x000003c8
+#define MSR_P4_IX_ESCR1			0x000003c9
+#define MSR_P4_MOB_ESCR0		0x000003aa
+#define MSR_P4_MOB_ESCR1		0x000003ab
+#define MSR_P4_MS_ESCR0			0x000003c0
+#define MSR_P4_MS_ESCR1			0x000003c1
+#define MSR_P4_PMH_ESCR0		0x000003ac
+#define MSR_P4_PMH_ESCR1		0x000003ad
+#define MSR_P4_RAT_ESCR0		0x000003bc
+#define MSR_P4_RAT_ESCR1		0x000003bd
+#define MSR_P4_SAAT_ESCR0		0x000003ae
+#define MSR_P4_SAAT_ESCR1		0x000003af
+#define MSR_P4_SSU_ESCR0		0x000003be
+#define MSR_P4_SSU_ESCR1		0x000003bf /* guess: not in manual */
+
+#define MSR_P4_TBPU_ESCR0		0x000003c2
+#define MSR_P4_TBPU_ESCR1		0x000003c3
+#define MSR_P4_TC_ESCR0			0x000003c4
+#define MSR_P4_TC_ESCR1			0x000003c5
+#define MSR_P4_U2L_ESCR0		0x000003b0
+#define MSR_P4_U2L_ESCR1		0x000003b1
+
+/* Intel Core-based CPU performance counters */
+#define MSR_CORE_PERF_FIXED_CTR0	0x00000309
+#define MSR_CORE_PERF_FIXED_CTR1	0x0000030a
+#define MSR_CORE_PERF_FIXED_CTR2	0x0000030b
+#define MSR_CORE_PERF_FIXED_CTR_CTRL	0x0000038d
+#define MSR_CORE_PERF_GLOBAL_STATUS	0x0000038e
+#define MSR_CORE_PERF_GLOBAL_CTRL	0x0000038f
+#define MSR_CORE_PERF_GLOBAL_OVF_CTRL	0x00000390
+
+/* Geode defined MSRs */
+#define MSR_GEODE_BUSCONT_CONF0		0x00001900
+
+#endif /* __ASM_MSR_INDEX_H */
Index: linux/include/asm-i386/msr.h
===================================================================
--- linux.orig/include/asm-i386/msr.h
+++ linux/include/asm-i386/msr.h
@@ -1,6 +1,11 @@
 #ifndef __ASM_MSR_H
 #define __ASM_MSR_H
 
+#include <asm/msr-index.h>
+
+#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
+
 #include <asm/errno.h>
 
 static inline unsigned long long native_read_msr(unsigned int msr)
@@ -153,234 +158,6 @@ static inline void wrmsr_on_cpu(unsigned
 	wrmsr(msr_no, l, h);
 }
 #endif  /*  CONFIG_SMP  */
-
-/* symbolic names for some interesting MSRs */
-/* Intel defined MSRs. */
-#define MSR_IA32_P5_MC_ADDR		0
-#define MSR_IA32_P5_MC_TYPE		1
-#define MSR_IA32_PLATFORM_ID		0x17
-#define MSR_IA32_EBL_CR_POWERON		0x2a
-
-#define MSR_IA32_APICBASE		0x1b
-#define MSR_IA32_APICBASE_BSP		(1<<8)
-#define MSR_IA32_APICBASE_ENABLE	(1<<11)
-#define MSR_IA32_APICBASE_BASE		(0xfffff<<12)
-
-#define MSR_IA32_UCODE_WRITE		0x79
-#define MSR_IA32_UCODE_REV		0x8b
-
-#define MSR_P6_PERFCTR0		0xc1
-#define MSR_P6_PERFCTR1		0xc2
-#define MSR_FSB_FREQ		0xcd
-
-
-#define MSR_IA32_BBL_CR_CTL		0x119
-
-#define MSR_IA32_SYSENTER_CS		0x174
-#define MSR_IA32_SYSENTER_ESP		0x175
-#define MSR_IA32_SYSENTER_EIP		0x176
-
-#define MSR_IA32_MCG_CAP		0x179
-#define MSR_IA32_MCG_STATUS		0x17a
-#define MSR_IA32_MCG_CTL		0x17b
-
-/* P4/Xeon+ specific */
-#define MSR_IA32_MCG_EAX		0x180
-#define MSR_IA32_MCG_EBX		0x181
-#define MSR_IA32_MCG_ECX		0x182
-#define MSR_IA32_MCG_EDX		0x183
-#define MSR_IA32_MCG_ESI		0x184
-#define MSR_IA32_MCG_EDI		0x185
-#define MSR_IA32_MCG_EBP		0x186
-#define MSR_IA32_MCG_ESP		0x187
-#define MSR_IA32_MCG_EFLAGS		0x188
-#define MSR_IA32_MCG_EIP		0x189
-#define MSR_IA32_MCG_RESERVED		0x18A
-
-#define MSR_P6_EVNTSEL0			0x186
-#define MSR_P6_EVNTSEL1			0x187
-
-#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
-#define MSR_IA32_MISC_ENABLE		0x1a0
-
-#define MSR_IA32_DEBUGCTLMSR		0x1d9
-#define MSR_IA32_LASTBRANCHFROMIP	0x1db
-#define MSR_IA32_LASTBRANCHTOIP		0x1dc
-#define MSR_IA32_LASTINTFROMIP		0x1dd
-#define MSR_IA32_LASTINTTOIP		0x1de
-
-#define MSR_IA32_MC0_CTL		0x400
-#define MSR_IA32_MC0_STATUS		0x401
-#define MSR_IA32_MC0_ADDR		0x402
-#define MSR_IA32_MC0_MISC		0x403
-
-#define MSR_IA32_PEBS_ENABLE		0x3f1
-#define MSR_IA32_DS_AREA		0x600
-#define MSR_IA32_PERF_CAPABILITIES	0x345
-
-/* Pentium IV performance counter MSRs */
-#define MSR_P4_BPU_PERFCTR0 		0x300
-#define MSR_P4_BPU_PERFCTR1 		0x301
-#define MSR_P4_BPU_PERFCTR2 		0x302
-#define MSR_P4_BPU_PERFCTR3 		0x303
-#define MSR_P4_MS_PERFCTR0 		0x304
-#define MSR_P4_MS_PERFCTR1 		0x305
-#define MSR_P4_MS_PERFCTR2 		0x306
-#define MSR_P4_MS_PERFCTR3 		0x307
-#define MSR_P4_FLAME_PERFCTR0 		0x308
-#define MSR_P4_FLAME_PERFCTR1 		0x309
-#define MSR_P4_FLAME_PERFCTR2 		0x30a
-#define MSR_P4_FLAME_PERFCTR3 		0x30b
-#define MSR_P4_IQ_PERFCTR0 		0x30c
-#define MSR_P4_IQ_PERFCTR1 		0x30d
-#define MSR_P4_IQ_PERFCTR2 		0x30e
-#define MSR_P4_IQ_PERFCTR3 		0x30f
-#define MSR_P4_IQ_PERFCTR4 		0x310
-#define MSR_P4_IQ_PERFCTR5 		0x311
-#define MSR_P4_BPU_CCCR0 		0x360
-#define MSR_P4_BPU_CCCR1 		0x361
-#define MSR_P4_BPU_CCCR2 		0x362
-#define MSR_P4_BPU_CCCR3 		0x363
-#define MSR_P4_MS_CCCR0 		0x364
-#define MSR_P4_MS_CCCR1 		0x365
-#define MSR_P4_MS_CCCR2 		0x366
-#define MSR_P4_MS_CCCR3 		0x367
-#define MSR_P4_FLAME_CCCR0 		0x368
-#define MSR_P4_FLAME_CCCR1 		0x369
-#define MSR_P4_FLAME_CCCR2 		0x36a
-#define MSR_P4_FLAME_CCCR3 		0x36b
-#define MSR_P4_IQ_CCCR0 		0x36c
-#define MSR_P4_IQ_CCCR1 		0x36d
-#define MSR_P4_IQ_CCCR2 		0x36e
-#define MSR_P4_IQ_CCCR3 		0x36f
-#define MSR_P4_IQ_CCCR4 		0x370
-#define MSR_P4_IQ_CCCR5 		0x371
-#define MSR_P4_ALF_ESCR0 		0x3ca
-#define MSR_P4_ALF_ESCR1 		0x3cb
-#define MSR_P4_BPU_ESCR0 		0x3b2
-#define MSR_P4_BPU_ESCR1 		0x3b3
-#define MSR_P4_BSU_ESCR0 		0x3a0
-#define MSR_P4_BSU_ESCR1 		0x3a1
-#define MSR_P4_CRU_ESCR0 		0x3b8
-#define MSR_P4_CRU_ESCR1 		0x3b9
-#define MSR_P4_CRU_ESCR2 		0x3cc
-#define MSR_P4_CRU_ESCR3 		0x3cd
-#define MSR_P4_CRU_ESCR4 		0x3e0
-#define MSR_P4_CRU_ESCR5 		0x3e1
-#define MSR_P4_DAC_ESCR0 		0x3a8
-#define MSR_P4_DAC_ESCR1 		0x3a9
-#define MSR_P4_FIRM_ESCR0 		0x3a4
-#define MSR_P4_FIRM_ESCR1 		0x3a5
-#define MSR_P4_FLAME_ESCR0 		0x3a6
-#define MSR_P4_FLAME_ESCR1 		0x3a7
-#define MSR_P4_FSB_ESCR0 		0x3a2
-#define MSR_P4_FSB_ESCR1 		0x3a3
-#define MSR_P4_IQ_ESCR0 		0x3ba
-#define MSR_P4_IQ_ESCR1 		0x3bb
-#define MSR_P4_IS_ESCR0 		0x3b4
-#define MSR_P4_IS_ESCR1 		0x3b5
-#define MSR_P4_ITLB_ESCR0 		0x3b6
-#define MSR_P4_ITLB_ESCR1 		0x3b7
-#define MSR_P4_IX_ESCR0 		0x3c8
-#define MSR_P4_IX_ESCR1 		0x3c9
-#define MSR_P4_MOB_ESCR0 		0x3aa
-#define MSR_P4_MOB_ESCR1 		0x3ab
-#define MSR_P4_MS_ESCR0 		0x3c0
-#define MSR_P4_MS_ESCR1 		0x3c1
-#define MSR_P4_PMH_ESCR0 		0x3ac
-#define MSR_P4_PMH_ESCR1 		0x3ad
-#define MSR_P4_RAT_ESCR0 		0x3bc
-#define MSR_P4_RAT_ESCR1 		0x3bd
-#define MSR_P4_SAAT_ESCR0 		0x3ae
-#define MSR_P4_SAAT_ESCR1 		0x3af
-#define MSR_P4_SSU_ESCR0 		0x3be
-#define MSR_P4_SSU_ESCR1 		0x3bf    /* guess: not defined in manual */
-#define MSR_P4_TBPU_ESCR0 		0x3c2
-#define MSR_P4_TBPU_ESCR1 		0x3c3
-#define MSR_P4_TC_ESCR0 		0x3c4
-#define MSR_P4_TC_ESCR1 		0x3c5
-#define MSR_P4_U2L_ESCR0 		0x3b0
-#define MSR_P4_U2L_ESCR1 		0x3b1
-
-/* AMD Defined MSRs */
-#define MSR_K6_EFER			0xC0000080
-#define MSR_K6_STAR			0xC0000081
-#define MSR_K6_WHCR			0xC0000082
-#define MSR_K6_UWCCR			0xC0000085
-#define MSR_K6_EPMR			0xC0000086
-#define MSR_K6_PSOR			0xC0000087
-#define MSR_K6_PFIR			0xC0000088
-
-#define MSR_K7_EVNTSEL0			0xC0010000
-#define MSR_K7_EVNTSEL1			0xC0010001
-#define MSR_K7_EVNTSEL2			0xC0010002
-#define MSR_K7_EVNTSEL3			0xC0010003
-#define MSR_K7_PERFCTR0			0xC0010004
-#define MSR_K7_PERFCTR1			0xC0010005
-#define MSR_K7_PERFCTR2			0xC0010006
-#define MSR_K7_PERFCTR3			0xC0010007
-#define MSR_K7_HWCR			0xC0010015
-#define MSR_K7_CLK_CTL			0xC001001b
-#define MSR_K7_FID_VID_CTL		0xC0010041
-#define MSR_K7_FID_VID_STATUS		0xC0010042
-
-#define MSR_K8_ENABLE_C1E		0xC0010055
-
-/* extended feature register */
-#define MSR_EFER 			0xc0000080
-
-/* EFER bits: */
-
-/* Execute Disable enable */
-#define _EFER_NX			11
-#define EFER_NX				(1<<_EFER_NX)
-
-/* Centaur-Hauls/IDT defined MSRs. */
-#define MSR_IDT_FCR1			0x107
-#define MSR_IDT_FCR2			0x108
-#define MSR_IDT_FCR3			0x109
-#define MSR_IDT_FCR4			0x10a
-
-#define MSR_IDT_MCR0			0x110
-#define MSR_IDT_MCR1			0x111
-#define MSR_IDT_MCR2			0x112
-#define MSR_IDT_MCR3			0x113
-#define MSR_IDT_MCR4			0x114
-#define MSR_IDT_MCR5			0x115
-#define MSR_IDT_MCR6			0x116
-#define MSR_IDT_MCR7			0x117
-#define MSR_IDT_MCR_CTRL		0x120
-
-/* VIA Cyrix defined MSRs*/
-#define MSR_VIA_FCR			0x1107
-#define MSR_VIA_LONGHAUL		0x110a
-#define MSR_VIA_RNG			0x110b
-#define MSR_VIA_BCR2			0x1147
-
-/* Transmeta defined MSRs */
-#define MSR_TMTA_LONGRUN_CTRL		0x80868010
-#define MSR_TMTA_LONGRUN_FLAGS		0x80868011
-#define MSR_TMTA_LRTI_READOUT		0x80868018
-#define MSR_TMTA_LRTI_VOLT_MHZ		0x8086801a
-
-/* Intel Core-based CPU performance counters */
-#define MSR_CORE_PERF_FIXED_CTR0	0x309
-#define MSR_CORE_PERF_FIXED_CTR1	0x30a
-#define MSR_CORE_PERF_FIXED_CTR2	0x30b
-#define MSR_CORE_PERF_FIXED_CTR_CTRL	0x38d
-#define MSR_CORE_PERF_GLOBAL_STATUS	0x38e
-#define MSR_CORE_PERF_GLOBAL_CTRL	0x38f
-#define MSR_CORE_PERF_GLOBAL_OVF_CTRL	0x390
-
-/* Geode defined MSRs */
-#define MSR_GEODE_BUSCONT_CONF0         0x1900
-
+#endif
+#endif
 #endif /* __ASM_MSR_H */
Index: linux/include/asm-i386/processor-flags.h
===================================================================
--- linux.orig/include/asm-i386/processor-flags.h
+++ linux/include/asm-i386/processor-flags.h
@@ -23,4 +23,69 @@
 #define X86_EFLAGS_VIP	0x00100000 /* Virtual Interrupt Pending */
 #define X86_EFLAGS_ID	0x00200000 /* CPUID detection flag */
 
+/*
+ * Basic CPU control in CR0
+ */
+#define X86_CR0_PE	0x00000001 /* Protection Enable */
+#define X86_CR0_MP	0x00000002 /* Monitor Coprocessor */
+#define X86_CR0_EM	0x00000004 /* Emulation */
+#define X86_CR0_TS	0x00000008 /* Task Switched */
+#define X86_CR0_ET	0x00000010 /* Extension Type */
+#define X86_CR0_NE	0x00000020 /* Numeric Error */
+#define X86_CR0_WP	0x00010000 /* Write Protect */
+#define X86_CR0_AM	0x00040000 /* Alignment Mask */
+#define X86_CR0_NW	0x20000000 /* Not Write-through */
+#define X86_CR0_CD	0x40000000 /* Cache Disable */
+#define X86_CR0_PG	0x80000000 /* Paging */
+
+/*
+ * Paging options in CR3
+ */
+#define X86_CR3_PWT	0x00000008 /* Page Write Through */
+#define X86_CR3_PCD	0x00000010 /* Page Cache Disable */
+
+/*
+ * Intel CPU features in CR4
+ */
+#define X86_CR4_VME	0x00000001 /* enable vm86 extensions */
+#define X86_CR4_PVI	0x00000002 /* virtual interrupts flag enable */
+#define X86_CR4_TSD	0x00000004 /* disable time stamp at ipl 3 */
+#define X86_CR4_DE	0x00000008 /* enable debugging extensions */
+#define X86_CR4_PSE	0x00000010 /* enable page size extensions */
+#define X86_CR4_PAE	0x00000020 /* enable physical address extensions */
+#define X86_CR4_MCE	0x00000040 /* Machine check enable */
+#define X86_CR4_PGE	0x00000080 /* enable global pages */
+#define X86_CR4_PCE	0x00000100 /* enable performance counters at ipl 3 */
+#define X86_CR4_OSFXSR	0x00000200 /* enable fast FPU save and restore */
+#define X86_CR4_OSXMMEXCPT 0x00000400 /* enable unmasked SSE exceptions */
+#define X86_CR4_VMXE	0x00002000 /* enable VMX virtualization */
+
+/*
+ * x86-64 Task Priority Register, CR8
+ */
+#define X86_CR8_TPR	0x00000007 /* task priority register */
+
+/*
+ * AMD and Transmeta use MSRs for configuration; see <asm/msr-index.h>
+ */
+
+/*
+ *      NSC/Cyrix CPU configuration register indexes
+ */
+#define CX86_PCR0	0x20
+#define CX86_GCR	0xb8
+#define CX86_CCR0	0xc0
+#define CX86_CCR1	0xc1
+#define CX86_CCR2	0xc2
+#define CX86_CCR3	0xc3
+#define CX86_CCR4	0xe8
+#define CX86_CCR5	0xe9
+#define CX86_CCR6	0xea
+#define CX86_CCR7	0xeb
+#define CX86_PCR1	0xf0
+#define CX86_DIR0	0xfe
+#define CX86_DIR1	0xff
+#define CX86_ARR_BASE	0xc4
+#define CX86_RCR_BASE	0xdc
+
 #endif	/* __ASM_I386_PROCESSOR_FLAGS_H */
Index: linux/include/asm-i386/processor.h
===================================================================
--- linux.orig/include/asm-i386/processor.h
+++ linux/include/asm-i386/processor.h
@@ -143,21 +143,6 @@ static inline void native_cpuid(unsigned
 #define load_cr3(pgdir) write_cr3(__pa(pgdir))
 
 /*
- * Intel CPU features in CR4
- */
-#define X86_CR4_VME		0x0001	/* enable vm86 extensions */
-#define X86_CR4_PVI		0x0002	/* virtual interrupts flag enable */
-#define X86_CR4_TSD		0x0004	/* disable time stamp at ipl 3 */
-#define X86_CR4_DE		0x0008	/* enable debugging extensions */
-#define X86_CR4_PSE		0x0010	/* enable page size extensions */
-#define X86_CR4_PAE		0x0020	/* enable physical address extensions */
-#define X86_CR4_MCE		0x0040	/* Machine check enable */
-#define X86_CR4_PGE		0x0080	/* enable global pages */
-#define X86_CR4_PCE		0x0100	/* enable performance counters at ipl 3 */
-#define X86_CR4_OSFXSR		0x0200	/* enable fast FPU save and restore */
-#define X86_CR4_OSXMMEXCPT	0x0400	/* enable unmasked SSE exceptions */
-
-/*
  * Save the cr4 feature set we're using (ie
  * Pentium 4MB enable and PPro Global page
  * enable), so that any CPU's that boot up
@@ -184,26 +169,6 @@ static inline void clear_in_cr4 (unsigne
 }
 
 /*
- *      NSC/Cyrix CPU configuration register indexes
- */
-
-#define CX86_PCR0 0x20
-#define CX86_GCR  0xb8
-#define CX86_CCR0 0xc0
-#define CX86_CCR1 0xc1
-#define CX86_CCR2 0xc2
-#define CX86_CCR3 0xc3
-#define CX86_CCR4 0xe8
-#define CX86_CCR5 0xe9
-#define CX86_CCR6 0xea
-#define CX86_CCR7 0xeb
-#define CX86_PCR1 0xf0
-#define CX86_DIR0 0xfe
-#define CX86_DIR1 0xff
-#define CX86_ARR_BASE 0xc4
-#define CX86_RCR_BASE 0xdc
-
-/*
  *      NSC/Cyrix CPU indexed register access macros
  */
 
Index: linux/include/asm-x86_64/Kbuild
===================================================================
--- linux.orig/include/asm-x86_64/Kbuild
+++ linux/include/asm-x86_64/Kbuild
@@ -8,7 +8,7 @@ header-y += boot.h
 header-y += bootsetup.h
 header-y += debugreg.h
 header-y += ldt.h
-header-y += msr.h
+header-y += msr-index.h
 header-y += prctl.h
 header-y += ptrace-abi.h
 header-y += sigcontext32.h
@@ -16,6 +16,7 @@ header-y += ucontext.h
 header-y += vsyscall32.h
 
 unifdef-y += mce.h
+unifdef-y += msr.h
 unifdef-y += mtrr.h
 unifdef-y += vsyscall.h
 unifdef-y += const.h
Index: linux/include/asm-x86_64/msr-index.h
===================================================================
--- /dev/null
+++ linux/include/asm-x86_64/msr-index.h
@@ -0,0 +1 @@
+#include <asm-i386/msr-index.h>
Index: linux/include/asm-x86_64/msr.h
===================================================================
--- linux.orig/include/asm-x86_64/msr.h
+++ linux/include/asm-x86_64/msr.h
@@ -1,6 +1,8 @@
 #ifndef X86_64_MSR_H
 #define X86_64_MSR_H 1
 
+#include <asm/msr-index.h>
+
 #ifndef __ASSEMBLY__
 /*
  * Access to machine-specific registers (available on 586 and better only)
@@ -157,9 +159,6 @@ static inline unsigned int cpuid_edx(uns
 	return edx;
 }
 
-#define MSR_IA32_UCODE_WRITE		0x79
-#define MSR_IA32_UCODE_REV		0x8b
-
 #ifdef CONFIG_SMP
 void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
 void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
@@ -172,269 +171,6 @@ static inline void wrmsr_on_cpu(unsigned
 {
 	wrmsr(msr_no, l, h);
 }
-#endif  /*  CONFIG_SMP  */
-
-#endif
-
-/* AMD/K8 specific MSRs */ 
-#define MSR_EFER 0xc0000080		/* extended feature register */
-#define MSR_STAR 0xc0000081		/* legacy mode SYSCALL target */
-#define MSR_LSTAR 0xc0000082 		/* long mode SYSCALL target */
-#define MSR_CSTAR 0xc0000083		/* compatibility mode SYSCALL target */
-#define MSR_SYSCALL_MASK 0xc0000084	/* EFLAGS mask for syscall */
-#define MSR_FS_BASE 0xc0000100		/* 64bit FS base */
-#define MSR_GS_BASE 0xc0000101		/* 64bit GS base */
-#define MSR_KERNEL_GS_BASE  0xc0000102	/* SwapGS GS shadow (or USER_GS from kernel) */ 
-/* EFER bits: */ 
-#define _EFER_SCE 0  /* SYSCALL/SYSRET */
-#define _EFER_LME 8  /* Long mode enable */
-#define _EFER_LMA 10 /* Long mode active (read-only) */
-#define _EFER_NX 11  /* No execute enable */
-
-#define EFER_SCE (1<<_EFER_SCE)
-#define EFER_LME (1<<_EFER_LME)
-#define EFER_LMA (1<<_EFER_LMA)
-#define EFER_NX (1<<_EFER_NX)
-
-/* Intel MSRs. Some also available on other CPUs */
-#define MSR_IA32_TSC		0x10
-#define MSR_IA32_PLATFORM_ID	0x17
-
-#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
-
-#define MSR_IA32_SYSENTER_CS	0x174
-#define MSR_IA32_SYSENTER_ESP	0x175
-#define MSR_IA32_SYSENTER_EIP	0x176
-
-#define MSR_IA32_MCG_CAP       0x179
-#define MSR_IA32_MCG_STATUS        0x17a
-#define MSR_IA32_MCG_CTL       0x17b
-
-#define MSR_IA32_EVNTSEL0      0x186
-#define MSR_IA32_EVNTSEL1      0x187
-
-#define MSR_IA32_DEBUGCTLMSR       0x1d9
-#define MSR_IA32_LASTBRANCHFROMIP  0x1db
-#define MSR_IA32_LASTBRANCHTOIP        0x1dc
-#define MSR_IA32_LASTINTFROMIP     0x1dd
-#define MSR_IA32_LASTINTTOIP       0x1de
-
-#define MSR_IA32_PEBS_ENABLE		0x3f1
-#define MSR_IA32_DS_AREA		0x600
-#define MSR_IA32_PERF_CAPABILITIES	0x345
-
-#define MSR_MTRRfix64K_00000	0x250
-#define MSR_MTRRfix16K_80000	0x258
-#define MSR_MTRRfix16K_A0000	0x259
-#define MSR_MTRRfix4K_C0000	0x268
-#define MSR_MTRRfix4K_C8000	0x269
-#define MSR_MTRRfix4K_D0000	0x26a
-#define MSR_MTRRfix4K_D8000	0x26b
-#define MSR_MTRRfix4K_E0000	0x26c
-#define MSR_MTRRfix4K_E8000	0x26d
-#define MSR_MTRRfix4K_F0000	0x26e
-#define MSR_MTRRfix4K_F8000	0x26f
-#define MSR_MTRRdefType		0x2ff
-
-#define MSR_IA32_MC0_CTL       0x400
-#define MSR_IA32_MC0_STATUS        0x401
-#define MSR_IA32_MC0_ADDR      0x402
-#define MSR_IA32_MC0_MISC      0x403
-
-#define MSR_P6_PERFCTR0			0xc1
-#define MSR_P6_PERFCTR1			0xc2
-#define MSR_P6_EVNTSEL0			0x186
-#define MSR_P6_EVNTSEL1			0x187
-
-/* K7/K8 MSRs. Not complete. See the architecture manual for a more complete list. */
-#define MSR_K7_EVNTSEL0            0xC0010000
-#define MSR_K7_PERFCTR0            0xC0010004
-#define MSR_K7_EVNTSEL1            0xC0010001
-#define MSR_K7_PERFCTR1            0xC0010005
-#define MSR_K7_EVNTSEL2            0xC0010002
-#define MSR_K7_PERFCTR2            0xC0010006
-#define MSR_K7_EVNTSEL3            0xC0010003
-#define MSR_K7_PERFCTR3            0xC0010007
-#define MSR_K8_TOP_MEM1		   0xC001001A
-#define MSR_K8_TOP_MEM2		   0xC001001D
-#define MSR_K8_SYSCFG		   0xC0010010
-#define MSR_K8_HWCR		   0xC0010015
-
-/* K6 MSRs */
-#define MSR_K6_EFER			0xC0000080
-#define MSR_K6_STAR			0xC0000081
-#define MSR_K6_WHCR			0xC0000082
-#define MSR_K6_UWCCR			0xC0000085
-#define MSR_K6_PSOR			0xC0000087
-#define MSR_K6_PFIR			0xC0000088
-
-/* Centaur-Hauls/IDT defined MSRs. */
-#define MSR_IDT_FCR1			0x107
-#define MSR_IDT_FCR2			0x108
-#define MSR_IDT_FCR3			0x109
-#define MSR_IDT_FCR4			0x10a
-
-#define MSR_IDT_MCR0			0x110
-#define MSR_IDT_MCR1			0x111
-#define MSR_IDT_MCR2			0x112
-#define MSR_IDT_MCR3			0x113
-#define MSR_IDT_MCR4			0x114
-#define MSR_IDT_MCR5			0x115
-#define MSR_IDT_MCR6			0x116
-#define MSR_IDT_MCR7			0x117
-#define MSR_IDT_MCR_CTRL		0x120
-
-/* VIA Cyrix defined MSRs*/
-#define MSR_VIA_FCR			0x1107
-#define MSR_VIA_LONGHAUL		0x110a
-#define MSR_VIA_RNG			0x110b
-#define MSR_VIA_BCR2			0x1147
-
-/* Intel defined MSRs. */
-#define MSR_IA32_P5_MC_ADDR		0
-#define MSR_IA32_P5_MC_TYPE		1
-#define MSR_IA32_PLATFORM_ID		0x17
-#define MSR_IA32_EBL_CR_POWERON		0x2a
-
-#define MSR_IA32_APICBASE               0x1b
-#define MSR_IA32_APICBASE_BSP           (1<<8)
-#define MSR_IA32_APICBASE_ENABLE        (1<<11)
-#define MSR_IA32_APICBASE_BASE          (0xfffff<<12)
-
-/* P4/Xeon+ specific */
-#define MSR_IA32_MCG_EAX		0x180
-#define MSR_IA32_MCG_EBX		0x181
-#define MSR_IA32_MCG_ECX		0x182
-#define MSR_IA32_MCG_EDX		0x183
-#define MSR_IA32_MCG_ESI		0x184
-#define MSR_IA32_MCG_EDI		0x185
-#define MSR_IA32_MCG_EBP		0x186
-#define MSR_IA32_MCG_ESP		0x187
-#define MSR_IA32_MCG_EFLAGS		0x188
-#define MSR_IA32_MCG_EIP		0x189
-#define MSR_IA32_MCG_RESERVED		0x18A
-
-#define MSR_P6_EVNTSEL0			0x186
-#define MSR_P6_EVNTSEL1			0x187
-
-#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
-#define MSR_IA32_MISC_ENABLE		0x1a0
-
-#define MSR_IA32_DEBUGCTLMSR		0x1d9
-#define MSR_IA32_LASTBRANCHFROMIP	0x1db
-#define MSR_IA32_LASTBRANCHTOIP		0x1dc
-#define MSR_IA32_LASTINTFROMIP		0x1dd
-#define MSR_IA32_LASTINTTOIP		0x1de
-
-#define MSR_IA32_MC0_CTL		0x400
-#define MSR_IA32_MC0_STATUS		0x401
-#define MSR_IA32_MC0_ADDR		0x402
-#define MSR_IA32_MC0_MISC		0x403
-
-/* Pentium IV performance counter MSRs */
-#define MSR_P4_BPU_PERFCTR0 		0x300
-#define MSR_P4_BPU_PERFCTR1 		0x301
-#define MSR_P4_BPU_PERFCTR2 		0x302
-#define MSR_P4_BPU_PERFCTR3 		0x303
-#define MSR_P4_MS_PERFCTR0 		0x304
-#define MSR_P4_MS_PERFCTR1 		0x305
-#define MSR_P4_MS_PERFCTR2 		0x306
-#define MSR_P4_MS_PERFCTR3 		0x307
-#define MSR_P4_FLAME_PERFCTR0 		0x308
-#define MSR_P4_FLAME_PERFCTR1 		0x309
-#define MSR_P4_FLAME_PERFCTR2 		0x30a
-#define MSR_P4_FLAME_PERFCTR3 		0x30b
-#define MSR_P4_IQ_PERFCTR0 		0x30c
-#define MSR_P4_IQ_PERFCTR1 		0x30d
-#define MSR_P4_IQ_PERFCTR2 		0x30e
-#define MSR_P4_IQ_PERFCTR3 		0x30f
-#define MSR_P4_IQ_PERFCTR4 		0x310
-#define MSR_P4_IQ_PERFCTR5 		0x311
-#define MSR_P4_BPU_CCCR0 		0x360
-#define MSR_P4_BPU_CCCR1 		0x361
-#define MSR_P4_BPU_CCCR2 		0x362
-#define MSR_P4_BPU_CCCR3 		0x363
-#define MSR_P4_MS_CCCR0 		0x364
-#define MSR_P4_MS_CCCR1 		0x365
-#define MSR_P4_MS_CCCR2 		0x366
-#define MSR_P4_MS_CCCR3 		0x367
-#define MSR_P4_FLAME_CCCR0 		0x368
-#define MSR_P4_FLAME_CCCR1 		0x369
-#define MSR_P4_FLAME_CCCR2 		0x36a
-#define MSR_P4_FLAME_CCCR3 		0x36b
-#define MSR_P4_IQ_CCCR0 		0x36c
-#define MSR_P4_IQ_CCCR1 		0x36d
-#define MSR_P4_IQ_CCCR2 		0x36e
-#define MSR_P4_IQ_CCCR3 		0x36f
-#define MSR_P4_IQ_CCCR4 		0x370
-#define MSR_P4_IQ_CCCR5 		0x371
-#define MSR_P4_ALF_ESCR0 		0x3ca
-#define MSR_P4_ALF_ESCR1 		0x3cb
-#define MSR_P4_BPU_ESCR0 		0x3b2
-#define MSR_P4_BPU_ESCR1 		0x3b3
-#define MSR_P4_BSU_ESCR0 		0x3a0
-#define MSR_P4_BSU_ESCR1 		0x3a1
-#define MSR_P4_CRU_ESCR0 		0x3b8
-#define MSR_P4_CRU_ESCR1 		0x3b9
-#define MSR_P4_CRU_ESCR2 		0x3cc
-#define MSR_P4_CRU_ESCR3 		0x3cd
-#define MSR_P4_CRU_ESCR4 		0x3e0
-#define MSR_P4_CRU_ESCR5 		0x3e1
-#define MSR_P4_DAC_ESCR0 		0x3a8
-#define MSR_P4_DAC_ESCR1 		0x3a9
-#define MSR_P4_FIRM_ESCR0 		0x3a4
-#define MSR_P4_FIRM_ESCR1 		0x3a5
-#define MSR_P4_FLAME_ESCR0 		0x3a6
-#define MSR_P4_FLAME_ESCR1 		0x3a7
-#define MSR_P4_FSB_ESCR0 		0x3a2
-#define MSR_P4_FSB_ESCR1 		0x3a3
-#define MSR_P4_IQ_ESCR0 		0x3ba
-#define MSR_P4_IQ_ESCR1 		0x3bb
-#define MSR_P4_IS_ESCR0 		0x3b4
-#define MSR_P4_IS_ESCR1 		0x3b5
-#define MSR_P4_ITLB_ESCR0 		0x3b6
-#define MSR_P4_ITLB_ESCR1 		0x3b7
-#define MSR_P4_IX_ESCR0 		0x3c8
-#define MSR_P4_IX_ESCR1 		0x3c9
-#define MSR_P4_MOB_ESCR0 		0x3aa
-#define MSR_P4_MOB_ESCR1 		0x3ab
-#define MSR_P4_MS_ESCR0 		0x3c0
-#define MSR_P4_MS_ESCR1 		0x3c1
-#define MSR_P4_PMH_ESCR0 		0x3ac
-#define MSR_P4_PMH_ESCR1 		0x3ad
-#define MSR_P4_RAT_ESCR0 		0x3bc
-#define MSR_P4_RAT_ESCR1 		0x3bd
-#define MSR_P4_SAAT_ESCR0 		0x3ae
-#define MSR_P4_SAAT_ESCR1 		0x3af
-#define MSR_P4_SSU_ESCR0 		0x3be
-#define MSR_P4_SSU_ESCR1 		0x3bf    /* guess: not defined in manual */
-#define MSR_P4_TBPU_ESCR0 		0x3c2
-#define MSR_P4_TBPU_ESCR1 		0x3c3
-#define MSR_P4_TC_ESCR0 		0x3c4
-#define MSR_P4_TC_ESCR1 		0x3c5
-#define MSR_P4_U2L_ESCR0 		0x3b0
-#define MSR_P4_U2L_ESCR1 		0x3b1
-
-/* Intel Core-based CPU performance counters */
-#define MSR_CORE_PERF_FIXED_CTR0	0x309
-#define MSR_CORE_PERF_FIXED_CTR1	0x30a
-#define MSR_CORE_PERF_FIXED_CTR2	0x30b
-#define MSR_CORE_PERF_FIXED_CTR_CTRL	0x38d
-#define MSR_CORE_PERF_GLOBAL_STATUS	0x38e
-#define MSR_CORE_PERF_GLOBAL_CTRL	0x38f
-#define MSR_CORE_PERF_GLOBAL_OVF_CTRL	0x390
-
-#endif
+#endif  /* CONFIG_SMP */
+#endif /* __ASSEMBLY__ */
+#endif	/* X86_64_MSR_H */
Index: linux/include/asm-x86_64/processor-flags.h
===================================================================
--- linux.orig/include/asm-x86_64/processor-flags.h
+++ linux/include/asm-x86_64/processor-flags.h
@@ -1,26 +1 @@
-#ifndef __ASM_X86_64_PROCESSOR_FLAGS_H
-#define __ASM_X86_64_PROCESSOR_FLAGS_H
-/* Various flags defined: can be included from assembler. */
-
-/*
- * EFLAGS bits
- */
-#define X86_EFLAGS_CF	0x00000001 /* Carry Flag */
-#define X86_EFLAGS_PF	0x00000004 /* Parity Flag */
-#define X86_EFLAGS_AF	0x00000010 /* Auxillary carry Flag */
-#define X86_EFLAGS_ZF	0x00000040 /* Zero Flag */
-#define X86_EFLAGS_SF	0x00000080 /* Sign Flag */
-#define X86_EFLAGS_TF	0x00000100 /* Trap Flag */
-#define X86_EFLAGS_IF	0x00000200 /* Interrupt Flag */
-#define X86_EFLAGS_DF	0x00000400 /* Direction Flag */
-#define X86_EFLAGS_OF	0x00000800 /* Overflow Flag */
-#define X86_EFLAGS_IOPL	0x00003000 /* IOPL mask */
-#define X86_EFLAGS_NT	0x00004000 /* Nested Task */
-#define X86_EFLAGS_RF	0x00010000 /* Resume Flag */
-#define X86_EFLAGS_VM	0x00020000 /* Virtual Mode */
-#define X86_EFLAGS_AC	0x00040000 /* Alignment Check */
-#define X86_EFLAGS_VIF	0x00080000 /* Virtual Interrupt Flag */
-#define X86_EFLAGS_VIP	0x00100000 /* Virtual Interrupt Pending */
-#define X86_EFLAGS_ID	0x00200000 /* CPUID detection flag */
-
-#endif /* __ASM_X86_64_PROCESSOR_FLAGS_H */
+#include <asm-i386/processor-flags.h>
Index: linux/include/asm-x86_64/processor.h
===================================================================
--- linux.orig/include/asm-x86_64/processor.h
+++ linux/include/asm-x86_64/processor.h
@@ -104,21 +104,6 @@ extern unsigned int init_intel_cacheinfo
 extern unsigned short num_cache_leaves;
 
 /*
- * Intel CPU features in CR4
- */
-#define X86_CR4_VME		0x0001	/* enable vm86 extensions */
-#define X86_CR4_PVI		0x0002	/* virtual interrupts flag enable */
-#define X86_CR4_TSD		0x0004	/* disable time stamp at ipl 3 */
-#define X86_CR4_DE		0x0008	/* enable debugging extensions */
-#define X86_CR4_PSE		0x0010	/* enable page size extensions */
-#define X86_CR4_PAE		0x0020	/* enable physical address extensions */
-#define X86_CR4_MCE		0x0040	/* Machine check enable */
-#define X86_CR4_PGE		0x0080	/* enable global pages */
-#define X86_CR4_PCE		0x0100	/* enable performance counters at ipl 3 */
-#define X86_CR4_OSFXSR		0x0200	/* enable fast FPU save and restore */
-#define X86_CR4_OSXMMEXCPT	0x0400	/* enable unmasked SSE exceptions */
-
-/*
  * Save the cr4 feature set we're using (ie
  * Pentium 4MB enable and PPro Global page
  * enable), so that any CPU's that boot up
@@ -407,22 +392,6 @@ static inline void prefetchw(void *x) 
 #define cpu_relax()   rep_nop()
 
 /*
- *      NSC/Cyrix CPU configuration register indexes
- */
-#define CX86_CCR0 0xc0
-#define CX86_CCR1 0xc1
-#define CX86_CCR2 0xc2
-#define CX86_CCR3 0xc3
-#define CX86_CCR4 0xe8
-#define CX86_CCR5 0xe9
-#define CX86_CCR6 0xea
-#define CX86_CCR7 0xeb
-#define CX86_DIR0 0xfe
-#define CX86_DIR1 0xff
-#define CX86_ARR_BASE 0xc4
-#define CX86_RCR_BASE 0xdc
-
-/*
  *      NSC/Cyrix CPU indexed register access macros
  */
 

[PATCH] [22/26] i386: Remove smp_alt_instructions

[Andi Kleen]

From: Jeremy Fitzhardinge <jeremy@goop.org>
The .smp_altinstructions section and its corresponding symbols are
completely unused, so remove them.

Also, remove stray #ifdef __KENREL__ in asm-i386/alternative.h

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>

---
 arch/i386/kernel/alternative.c |   38 ++------------------------------------
 arch/i386/kernel/vmlinux.lds.S |   11 -----------
 include/asm-i386/alternative.h |    6 +-----
 3 files changed, 3 insertions(+), 52 deletions(-)

===================================================================
Index: linux/arch/i386/kernel/alternative.c
===================================================================
--- linux.orig/arch/i386/kernel/alternative.c
+++ linux/arch/i386/kernel/alternative.c
@@ -132,11 +132,8 @@ static void nop_out(void *insns, unsigne
 }
 
 extern struct alt_instr __alt_instructions[], __alt_instructions_end[];
-extern struct alt_instr __smp_alt_instructions[], __smp_alt_instructions_end[];
 extern u8 *__smp_locks[], *__smp_locks_end[];
 
-extern u8 __smp_alt_begin[], __smp_alt_end[];
-
 /* Replace instructions with better alternatives for this CPU type.
    This runs before SMP is initialized to avoid SMP problems with
    self modifying code. This implies that assymetric systems where
@@ -171,29 +168,6 @@ void apply_alternatives(struct alt_instr
 
 #ifdef CONFIG_SMP
 
-static void alternatives_smp_save(struct alt_instr *start, struct alt_instr *end)
-{
-	struct alt_instr *a;
-
-	DPRINTK("%s: alt table %p-%p\n", __FUNCTION__, start, end);
-	for (a = start; a < end; a++) {
-		memcpy(a->replacement + a->replacementlen,
-		       a->instr,
-		       a->instrlen);
-	}
-}
-
-static void alternatives_smp_apply(struct alt_instr *start, struct alt_instr *end)
-{
-	struct alt_instr *a;
-
-	for (a = start; a < end; a++) {
-		memcpy(a->instr,
-		       a->replacement + a->replacementlen,
-		       a->instrlen);
-	}
-}
-
 static void alternatives_smp_lock(u8 **start, u8 **end, u8 *text, u8 *text_end)
 {
 	u8 **ptr;
@@ -319,8 +293,6 @@ void alternatives_smp_switch(int smp)
 		printk(KERN_INFO "SMP alternatives: switching to SMP code\n");
 		clear_bit(X86_FEATURE_UP, boot_cpu_data.x86_capability);
 		clear_bit(X86_FEATURE_UP, cpu_data[0].x86_capability);
-		alternatives_smp_apply(__smp_alt_instructions,
-				       __smp_alt_instructions_end);
 		list_for_each_entry(mod, &smp_alt_modules, next)
 			alternatives_smp_lock(mod->locks, mod->locks_end,
 					      mod->text, mod->text_end);
@@ -328,8 +300,6 @@ void alternatives_smp_switch(int smp)
 		printk(KERN_INFO "SMP alternatives: switching to UP code\n");
 		set_bit(X86_FEATURE_UP, boot_cpu_data.x86_capability);
 		set_bit(X86_FEATURE_UP, cpu_data[0].x86_capability);
-		apply_alternatives(__smp_alt_instructions,
-				   __smp_alt_instructions_end);
 		list_for_each_entry(mod, &smp_alt_modules, next)
 			alternatives_smp_unlock(mod->locks, mod->locks_end,
 						mod->text, mod->text_end);
@@ -396,17 +366,13 @@ void __init alternative_instructions(voi
 			printk(KERN_INFO "SMP alternatives: switching to UP code\n");
 			set_bit(X86_FEATURE_UP, boot_cpu_data.x86_capability);
 			set_bit(X86_FEATURE_UP, cpu_data[0].x86_capability);
-			apply_alternatives(__smp_alt_instructions,
-					   __smp_alt_instructions_end);
 			alternatives_smp_unlock(__smp_locks, __smp_locks_end,
 						_text, _etext);
 		}
 		free_init_pages("SMP alternatives",
-				__pa_symbol(&__smp_alt_begin),
-				__pa_symbol(&__smp_alt_end));
+				__pa_symbol(&__smp_locks),
+				__pa_symbol(&__smp_locks_end));
 	} else {
-		alternatives_smp_save(__smp_alt_instructions,
-				      __smp_alt_instructions_end);
 		alternatives_smp_module_add(NULL, "core kernel",
 					    __smp_locks, __smp_locks_end,
 					    _text, _etext);
Index: linux/arch/i386/kernel/vmlinux.lds.S
===================================================================
--- linux.orig/arch/i386/kernel/vmlinux.lds.S
+++ linux/arch/i386/kernel/vmlinux.lds.S
@@ -117,22 +117,11 @@ SECTIONS
 
   /* might get freed after init */
   . = ALIGN(4096);
-  .smp_altinstructions : AT(ADDR(.smp_altinstructions) - LOAD_OFFSET) {
-	__smp_alt_begin = .;
-	__smp_alt_instructions = .;
-	*(.smp_altinstructions)
-	__smp_alt_instructions_end = .;
-  }
-  . = ALIGN(4);
   .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
   	__smp_locks = .;
 	*(.smp_locks)
 	__smp_locks_end = .;
   }
-  .smp_altinstr_replacement : AT(ADDR(.smp_altinstr_replacement) - LOAD_OFFSET) {
-	*(.smp_altinstr_replacement)
-  	__smp_alt_end = .;
-  }
   /* will be freed after init
    * Following ALIGN() is required to make sure no other data falls on the
    * same page where __smp_alt_end is pointing as that page might be freed
Index: linux/include/asm-i386/alternative.h
===================================================================
--- linux.orig/include/asm-i386/alternative.h
+++ linux/include/asm-i386/alternative.h
@@ -1,8 +1,6 @@
 #ifndef _I386_ALTERNATIVE_H
 #define _I386_ALTERNATIVE_H
 
-#ifdef __KERNEL__
-
 #include <asm/types.h>
 #include <linux/stddef.h>
 #include <linux/types.h>
@@ -32,9 +30,7 @@ static inline void alternatives_smp_modu
 					void *text, void *text_end) {}
 static inline void alternatives_smp_module_del(struct module *mod) {}
 static inline void alternatives_smp_switch(int smp) {}
-#endif
-
-#endif
+#endif	/* CONFIG_SMP */
 
 /*
  * Alternative instructions for different CPU types or capabilities.

[PATCH] [23/26] i386: Allow boot-time disable of SMP altinstructions

[Andi Kleen]

From: Jeremy Fitzhardinge <jeremy@goop.org>
Add "noreplace-smp" to disable SMP instruction replacement.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
 
---
 Documentation/kernel-parameters.txt |    6 ++++++
 arch/i386/kernel/alternative.c      |   23 +++++++++++++++++++----
 2 files changed, 25 insertions(+), 4 deletions(-)

===================================================================
Index: linux/Documentation/kernel-parameters.txt
===================================================================
--- linux.orig/Documentation/kernel-parameters.txt
+++ linux/Documentation/kernel-parameters.txt
@@ -1142,6 +1142,9 @@ and is between 256 and 4096 characters. 
 
 	nomce		[IA-32] Machine Check Exception
 
+	noreplace-smp	[IA-32,SMP] Don't replace SMP instructions
+			with UP alternatives
+
 	noresidual	[PPC] Don't use residual data on PReP machines.
 
 	noresume	[SWSUSP] Disables resume and restores original swap
@@ -1547,6 +1550,9 @@ and is between 256 and 4096 characters. 
 	smart2=		[HW]
 			Format: <io1>[,<io2>[,...,<io8>]]
 
+	smp-alt-once	[IA-32,SMP] On a hotplug CPU system, only
+			attempt to substitute SMP alternatives once at boot.
+
 	snd-ad1816a=	[HW,ALSA]
 
 	snd-ad1848=	[HW,ALSA]
Index: linux/arch/i386/kernel/alternative.c
===================================================================
--- linux.orig/arch/i386/kernel/alternative.c
+++ linux/arch/i386/kernel/alternative.c
@@ -5,6 +5,7 @@
 #include <asm/alternative.h>
 #include <asm/sections.h>
 
+static int noreplace_smp     = 0;
 static int smp_alt_once      = 0;
 static int debug_alternative = 0;
 
@@ -13,15 +14,23 @@ static int __init bootonly(char *str)
 	smp_alt_once = 1;
 	return 1;
 }
+__setup("smp-alt-boot", bootonly);
+
 static int __init debug_alt(char *str)
 {
 	debug_alternative = 1;
 	return 1;
 }
-
-__setup("smp-alt-boot", bootonly);
 __setup("debug-alternative", debug_alt);
 
+static int __init setup_noreplace_smp(char *str)
+{
+	noreplace_smp = 1;
+	return 1;
+}
+__setup("noreplace-smp", setup_noreplace_smp);
+
+
 #define DPRINTK(fmt, args...) if (debug_alternative) \
 	printk(KERN_DEBUG fmt, args)
 
@@ -185,6 +194,9 @@ static void alternatives_smp_unlock(u8 *
 {
 	u8 **ptr;
 
+	if (noreplace_smp)
+		return;
+
 	for (ptr = start; ptr < end; ptr++) {
 		if (*ptr < text)
 			continue;
@@ -219,6 +231,9 @@ void alternatives_smp_module_add(struct 
 	struct smp_alt_module *smp;
 	unsigned long flags;
 
+	if (noreplace_smp)
+		return;
+
 	if (smp_alt_once) {
 		if (boot_cpu_has(X86_FEATURE_UP))
 			alternatives_smp_unlock(locks, locks_end,
@@ -253,7 +268,7 @@ void alternatives_smp_module_del(struct 
 	struct smp_alt_module *item;
 	unsigned long flags;
 
-	if (smp_alt_once)
+	if (smp_alt_once || noreplace_smp)
 		return;
 
 	spin_lock_irqsave(&smp_alt, flags);
@@ -284,7 +299,7 @@ void alternatives_smp_switch(int smp)
 	return;
 #endif
 
-	if (smp_alt_once)
+	if (noreplace_smp || smp_alt_once)
 		return;
 	BUG_ON(!smp && (num_online_cpus() > 1));
 

[PATCH] [24/26] x86_64: Fix x86_64 compilation with DEBUG_SIG on

[Andi Kleen]

From: Glauber de Oliveira Costa <gcosta@redhat.com>

Setting the DEBUG_SIG flag breaks compilation due to a wrong
struct access. Aditionally, it raises two warnings. This is one
patch to fix them all.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>

-- 
Glauber de Oliveira Costa
Red Hat Inc.
"Free as in Freedom"


commit ff9d841995b6055b74017306f30485c2b4a9ea70
Author: Glauber de Oliveira Costa <gcosta@redhat.com>
Date:   Fri Mar 23 07:13:38 2007 -0300

    [PATCH] Fix x86_64 compilation with DEBUG_SIG on
    
    Setting the DEBUG_SIG flag breaks compilation due to a wrong
    struct access. Aditionally, it raises two warnings. This is one
    patch to fix them all.
    
    Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>

---
 arch/x86_64/kernel/signal.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Index: linux/arch/x86_64/kernel/signal.c
===================================================================
--- linux.orig/arch/x86_64/kernel/signal.c
+++ linux/arch/x86_64/kernel/signal.c
@@ -141,7 +141,7 @@ asmlinkage long sys_rt_sigreturn(struct 
 		goto badframe;
 
 #ifdef DEBUG_SIG
-	printk("%d sigreturn rip:%lx rsp:%lx frame:%p rax:%lx\n",current->pid,regs.rip,regs.rsp,frame,eax);
+	printk("%d sigreturn rip:%lx rsp:%lx frame:%p rax:%lx\n",current->pid,regs->rip,regs->rsp,frame,eax);
 #endif
 
 	if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->rsp) == -EFAULT)
@@ -301,7 +301,7 @@ static int setup_rt_frame(int sig, struc
 	if (test_thread_flag(TIF_SINGLESTEP))
 		ptrace_notify(SIGTRAP);
 #ifdef DEBUG_SIG
-	printk("SIG deliver (%s:%d): sp=%p pc=%p ra=%p\n",
+	printk("SIG deliver (%s:%d): sp=%p pc=%lx ra=%p\n",
 		current->comm, current->pid, frame, regs->rip, frame->pretcode);
 #endif
 
@@ -463,7 +463,7 @@ void
 do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags)
 {
 #ifdef DEBUG_SIG
-	printk("do_notify_resume flags:%x rip:%lx rsp:%lx caller:%lx pending:%lx\n",
+	printk("do_notify_resume flags:%x rip:%lx rsp:%lx caller:%p pending:%x\n",
 	       thread_info_flags, regs->rip, regs->rsp, __builtin_return_address(0),signal_pending(current)); 
 #endif
 	       

[PATCH] [25/26] x86_64: x86-64 system crashes when no memory populating Node 0

[Andi Kleen]

From: James Puthukattukaran <James.Puthukattukaran@sun.com>

I have a 4 socket AMD Operton system. The 2.6.18 kernel I have crashes
when there is no memory in node0.

AK: changed call to _nopanic

Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>

---

 arch/x86_64/kernel/aperture.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

Index: linux/arch/x86_64/kernel/aperture.c
===================================================================
--- linux.orig/arch/x86_64/kernel/aperture.c
+++ linux/arch/x86_64/kernel/aperture.c
@@ -51,7 +51,6 @@ static void __init insert_aperture_resou
 
 static u32 __init allocate_aperture(void) 
 {
-	pg_data_t *nd0 = NODE_DATA(0);
 	u32 aper_size;
 	void *p; 
 
@@ -65,12 +64,12 @@ static u32 __init allocate_aperture(void
 	 * Unfortunately we cannot move it up because that would make the
 	 * IOMMU useless.
 	 */
-	p = __alloc_bootmem_node(nd0, aper_size, aper_size, 0); 
+	p = __alloc_bootmem_nopanic(aper_size, aper_size, 0);
 	if (!p || __pa(p)+aper_size > 0xffffffff) {
 		printk("Cannot allocate aperture memory hole (%p,%uK)\n",
 		       p, aper_size>>10);
 		if (p)
-			free_bootmem_node(nd0, __pa(p), aper_size); 
+			free_bootmem(__pa(p), aper_size);
 		return 0;
 	}
 	printk("Mapping aperture over %d KB of RAM @ %lx\n",

[PATCH] [26/26] i386: i386 separate hardware-defined TSS from Linux additions

[Andi Kleen]

From: Rusty Russell <rusty@rustcorp.com.au>
On Thu, 2007-03-29 at 13:16 +0200, Andi Kleen wrote:
> Please clean it up properly with two structs.

Not sure about this, now I've done it.  Running it here.

If you like it, I can do x86-64 as well.

==
lguest defines its own TSS struct because the "struct tss_struct"
contains linux-specific additions.  Andi asked me to split the struct
in processor.h.

Unfortunately it makes usage a little awkward.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andi Kleen <ak@suse.de>

---
 arch/i386/kernel/asm-offsets.c |    2 +-
 arch/i386/kernel/doublefault.c |   31 +++++++++++++++++--------------
 arch/i386/kernel/ioport.c      |    2 +-
 arch/i386/kernel/process.c     |    8 ++++----
 arch/i386/kernel/sysenter.c    |    6 +++---
 arch/i386/kernel/traps.c       |    4 ++--
 arch/i386/kernel/vmi.c         |    8 ++++----
 include/asm-i386/processor.h   |   24 ++++++++++++++++--------
 8 files changed, 48 insertions(+), 37 deletions(-)

Index: linux/include/asm-i386/processor.h
===================================================================
--- linux.orig/include/asm-i386/processor.h
+++ linux/include/asm-i386/processor.h
@@ -291,7 +291,8 @@ typedef struct {
 
 struct thread_struct;
 
-struct tss_struct {
+/* This is the TSS defined by the hardware. */
+struct i386_hw_tss {
 	unsigned short	back_link,__blh;
 	unsigned long	esp0;
 	unsigned short	ss0,__ss0h;
@@ -315,6 +316,11 @@ struct tss_struct {
 	unsigned short	gs, __gsh;
 	unsigned short	ldt, __ldth;
 	unsigned short	trace, io_bitmap_base;
+} __attribute__((packed));
+
+struct tss_struct {
+	struct i386_hw_tss x86_tss;
+
 	/*
 	 * The extra 1 is there because the CPU will access an
 	 * additional byte beyond the end of the IO permission
@@ -381,10 +387,12 @@ struct thread_struct {
  * be within the limit.
  */
 #define INIT_TSS  {							\
-	.esp0		= sizeof(init_stack) + (long)&init_stack,	\
-	.ss0		= __KERNEL_DS,					\
-	.ss1		= __KERNEL_CS,					\
-	.io_bitmap_base	= INVALID_IO_BITMAP_OFFSET,			\
+	.x86_tss = {							\
+		.esp0		= sizeof(init_stack) + (long)&init_stack, \
+		.ss0		= __KERNEL_DS,				\
+		.ss1		= __KERNEL_CS,				\
+		.io_bitmap_base	= INVALID_IO_BITMAP_OFFSET,		\
+	 },								\
 	.io_bitmap	= { [ 0 ... IO_BITMAP_LONGS] = ~0 },		\
 }
 
@@ -493,10 +501,10 @@ static inline void rep_nop(void)
 
 static inline void native_load_esp0(struct tss_struct *tss, struct thread_struct *thread)
 {
-	tss->esp0 = thread->esp0;
+	tss->x86_tss.esp0 = thread->esp0;
 	/* This can only happen when SEP is enabled, no need to test "SEP"arately */
-	if (unlikely(tss->ss1 != thread->sysenter_cs)) {
-		tss->ss1 = thread->sysenter_cs;
+	if (unlikely(tss->x86_tss.ss1 != thread->sysenter_cs)) {
+		tss->x86_tss.ss1 = thread->sysenter_cs;
 		wrmsr(MSR_IA32_SYSENTER_CS, thread->sysenter_cs, 0);
 	}
 }
Index: linux/arch/i386/kernel/asm-offsets.c
===================================================================
--- linux.orig/arch/i386/kernel/asm-offsets.c
+++ linux/arch/i386/kernel/asm-offsets.c
@@ -93,7 +93,7 @@ void foo(void)
 	OFFSET(pbe_next, pbe, next);
 
 	/* Offset from the sysenter stack to tss.esp0 */
-	DEFINE(TSS_sysenter_esp0, offsetof(struct tss_struct, esp0) -
+	DEFINE(TSS_sysenter_esp0, offsetof(struct tss_struct, x86_tss.esp0) -
 		 sizeof(struct tss_struct));
 
 	DEFINE(PAGE_SIZE_asm, PAGE_SIZE);
Index: linux/arch/i386/kernel/doublefault.c
===================================================================
--- linux.orig/arch/i386/kernel/doublefault.c
+++ linux/arch/i386/kernel/doublefault.c
@@ -33,7 +33,7 @@ static void doublefault_fn(void)
 		printk("double fault, tss at %08lx\n", tss);
 
 		if (ptr_ok(tss)) {
-			struct tss_struct *t = (struct tss_struct *)tss;
+			struct i386_hw_tss *t = (struct i386_hw_tss *)tss;
 
 			printk("eip = %08lx, esp = %08lx\n", t->eip, t->esp);
 
@@ -49,18 +49,21 @@ static void doublefault_fn(void)
 }
 
 struct tss_struct doublefault_tss __cacheline_aligned = {
-	.esp0		= STACK_START,
-	.ss0		= __KERNEL_DS,
-	.ldt		= 0,
-	.io_bitmap_base	= INVALID_IO_BITMAP_OFFSET,
-
-	.eip		= (unsigned long) doublefault_fn,
-	.eflags		= X86_EFLAGS_SF | 0x2,	/* 0x2 bit is always set */
-	.esp		= STACK_START,
-	.es		= __USER_DS,
-	.cs		= __KERNEL_CS,
-	.ss		= __KERNEL_DS,
-	.ds		= __USER_DS,
+	.x86_tss = {
+		.esp0		= STACK_START,
+		.ss0		= __KERNEL_DS,
+		.ldt		= 0,
+		.io_bitmap_base	= INVALID_IO_BITMAP_OFFSET,
+
+		.eip		= (unsigned long) doublefault_fn,
+		/* 0x2 bit is always set */
+		.eflags		= X86_EFLAGS_SF | 0x2,
+		.esp		= STACK_START,
+		.es		= __USER_DS,
+		.cs		= __KERNEL_CS,
+		.ss		= __KERNEL_DS,
+		.ds		= __USER_DS,
 
-	.__cr3		= __pa(swapper_pg_dir)
+		.__cr3		= __pa(swapper_pg_dir)
+	}
 };
Index: linux/arch/i386/kernel/ioport.c
===================================================================
--- linux.orig/arch/i386/kernel/ioport.c
+++ linux/arch/i386/kernel/ioport.c
@@ -114,7 +114,7 @@ asmlinkage long sys_ioperm(unsigned long
 	 * Reset the owner so that a process switch will not set
 	 * tss->io_bitmap_base to IO_BITMAP_OFFSET.
 	 */
-	tss->io_bitmap_base = INVALID_IO_BITMAP_OFFSET_LAZY;
+	tss->x86_tss.io_bitmap_base = INVALID_IO_BITMAP_OFFSET_LAZY;
 	tss->io_bitmap_owner = NULL;
 
 	put_cpu();
Index: linux/arch/i386/kernel/process.c
===================================================================
--- linux.orig/arch/i386/kernel/process.c
+++ linux/arch/i386/kernel/process.c
@@ -375,7 +375,7 @@ void exit_thread(void)
 		t->io_bitmap_max = 0;
 		tss->io_bitmap_owner = NULL;
 		tss->io_bitmap_max = 0;
-		tss->io_bitmap_base = INVALID_IO_BITMAP_OFFSET;
+		tss->x86_tss.io_bitmap_base = INVALID_IO_BITMAP_OFFSET;
 		put_cpu();
 	}
 }
@@ -554,7 +554,7 @@ static noinline void __switch_to_xtra(st
 		 * Disable the bitmap via an invalid offset. We still cache
 		 * the previous bitmap owner and the IO bitmap contents:
 		 */
-		tss->io_bitmap_base = INVALID_IO_BITMAP_OFFSET;
+		tss->x86_tss.io_bitmap_base = INVALID_IO_BITMAP_OFFSET;
 		return;
 	}
 
@@ -564,7 +564,7 @@ static noinline void __switch_to_xtra(st
 		 * matches the next task, we dont have to do anything but
 		 * to set a valid offset in the TSS:
 		 */
-		tss->io_bitmap_base = IO_BITMAP_OFFSET;
+		tss->x86_tss.io_bitmap_base = IO_BITMAP_OFFSET;
 		return;
 	}
 	/*
@@ -576,7 +576,7 @@ static noinline void __switch_to_xtra(st
 	 * redundant copies when the currently switched task does not
 	 * perform any I/O during its timeslice.
 	 */
-	tss->io_bitmap_base = INVALID_IO_BITMAP_OFFSET_LAZY;
+	tss->x86_tss.io_bitmap_base = INVALID_IO_BITMAP_OFFSET_LAZY;
 }
 
 /*
Index: linux/arch/i386/kernel/sysenter.c
===================================================================
--- linux.orig/arch/i386/kernel/sysenter.c
+++ linux/arch/i386/kernel/sysenter.c
@@ -183,10 +183,10 @@ void enable_sep_cpu(void)
 		return;
 	}
 
-	tss->ss1 = __KERNEL_CS;
-	tss->esp1 = sizeof(struct tss_struct) + (unsigned long) tss;
+	tss->x86_tss.ss1 = __KERNEL_CS;
+	tss->x86_tss.esp1 = sizeof(struct tss_struct) + (unsigned long) tss;
 	wrmsr(MSR_IA32_SYSENTER_CS, __KERNEL_CS, 0);
-	wrmsr(MSR_IA32_SYSENTER_ESP, tss->esp1, 0);
+	wrmsr(MSR_IA32_SYSENTER_ESP, tss->x86_tss.esp1, 0);
 	wrmsr(MSR_IA32_SYSENTER_EIP, (unsigned long) sysenter_entry, 0);
 	put_cpu();	
 }
Index: linux/arch/i386/kernel/traps.c
===================================================================
--- linux.orig/arch/i386/kernel/traps.c
+++ linux/arch/i386/kernel/traps.c
@@ -596,7 +596,7 @@ fastcall void __kprobes do_general_prote
 	 * and we set the offset field correctly. Then we let the CPU to
 	 * restart the faulting instruction.
 	 */
-	if (tss->io_bitmap_base == INVALID_IO_BITMAP_OFFSET_LAZY &&
+	if (tss->x86_tss.io_bitmap_base == INVALID_IO_BITMAP_OFFSET_LAZY &&
 	    thread->io_bitmap_ptr) {
 		memcpy(tss->io_bitmap, thread->io_bitmap_ptr,
 		       thread->io_bitmap_max);
@@ -609,7 +609,7 @@ fastcall void __kprobes do_general_prote
 				thread->io_bitmap_max, 0xff,
 				tss->io_bitmap_max - thread->io_bitmap_max);
 		tss->io_bitmap_max = thread->io_bitmap_max;
-		tss->io_bitmap_base = IO_BITMAP_OFFSET;
+		tss->x86_tss.io_bitmap_base = IO_BITMAP_OFFSET;
 		tss->io_bitmap_owner = thread;
 		put_cpu();
 		return;
Index: linux/arch/i386/kernel/vmi.c
===================================================================
--- linux.orig/arch/i386/kernel/vmi.c
+++ linux/arch/i386/kernel/vmi.c
@@ -230,14 +230,14 @@ static void vmi_set_tr(void)
 static void vmi_load_esp0(struct tss_struct *tss,
 				   struct thread_struct *thread)
 {
-	tss->esp0 = thread->esp0;
+	tss->x86_tss.esp0 = thread->esp0;
 
 	/* This can only happen when SEP is enabled, no need to test "SEP"arately */
-	if (unlikely(tss->ss1 != thread->sysenter_cs)) {
-		tss->ss1 = thread->sysenter_cs;
+	if (unlikely(tss->x86_tss.ss1 != thread->sysenter_cs)) {
+		tss->x86_tss.ss1 = thread->sysenter_cs;
 		wrmsr(MSR_IA32_SYSENTER_CS, thread->sysenter_cs, 0);
 	}
-	vmi_ops.set_kernel_stack(__KERNEL_DS, tss->esp0);
+	vmi_ops.set_kernel_stack(__KERNEL_DS, tss->x86_tss.esp0);
 }
 
 static void vmi_flush_tlb_user(void)