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Commit 0473b799 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'x86-fixes-for-linus' of... 

Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (32 commits)
  x86: add MAP_STACK mmap flag
  x86: fix section mismatch warning - spp_getpage()
  x86: change init_gdt to update the gdt via write_gdt, rather than a direct write.
  x86-64: fix overlap of modules and fixmap areas
  x86, geode-mfgpt: check IRQ before using MFGPT as clocksource
  x86, acpi: cleanup, temp_stack is used only when CONFIG_SMP is set
  x86: fix spin_is_contended()
  x86, nmi: clean UP NMI watchdog failure message
  x86, NMI: fix watchdog failure message
  x86: fix /proc/meminfo DirectMap
  x86: fix readb() et al compile error with gcc-3.2.3
  arch/x86/Kconfig: clean up, experimental adjustement
  x86: invalidate caches before going into suspend
  x86, perfctr: don't use CCCR_OVF_PMI1 on Pentium 4Ds
  x86, AMD IOMMU: initialize dma_ops after sysfs registration
  x86m AMD IOMMU: cleanup: replace LOW_U32 macro with generic lower_32_bits
  x86, AMD IOMMU: initialize device table properly
  x86, AMD IOMMU: use status bit instead of memory write-back for completion wait
  x86: silence mmconfig printk
  x86, msr: fix NULL pointer deref due to msr_open on nonexistent CPUs
  ...
parents 9e94cd32 2fdc8690

arch/x86/Kconfig

+3 −3
Original line number Diff line number Diff line
@@ -951,9 +951,9 @@ config NUMA 
	  local memory controller of the CPU and add some more

	  NUMA awareness to the kernel.



	  For i386 this is currently highly experimental and should be only

	  For 32-bit this is currently highly experimental and should be only

	  used for kernel development. It might also cause boot failures.

	  For x86_64 this is recommended on all multiprocessor Opteron systems.

	  For 64-bit this is recommended on all multiprocessor Opteron systems.

	  If the system is EM64T, you should say N unless your system is

	  EM64T NUMA.
@@ -1263,7 +1263,7 @@ config KEXEC 
	  strongly in flux, so no good recommendation can be made.



config CRASH_DUMP

	bool "kernel crash dumps (EXPERIMENTAL)"

	bool "kernel crash dumps"

	depends on X86_64 || (X86_32 && HIGHMEM)

	help

	  Generate crash dump after being started by kexec.

arch/x86/boot/boot.h

+8 −0
Original line number Diff line number Diff line
@@ -24,6 +24,8 @@ 
#include <linux/edd.h>

#include <asm/boot.h>

#include <asm/setup.h>

#include "bitops.h"

#include <asm/cpufeature.h>



/* Useful macros */

#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
@@ -242,6 +244,12 @@ int cmdline_find_option(const char *option, char *buffer, int bufsize); 
int cmdline_find_option_bool(const char *option);



/* cpu.c, cpucheck.c */

struct cpu_features {

	int level;		/* Family, or 64 for x86-64 */

	int model;

	u32 flags[NCAPINTS];

};

extern struct cpu_features cpu;

int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr);

int validate_cpu(void);

arch/x86/boot/cpu.c

+0 −3
Original line number Diff line number Diff line
@@ -16,9 +16,6 @@ 
 */



#include "boot.h"

#include "bitops.h"

#include <asm/cpufeature.h>



#include "cpustr.h"



static char *cpu_name(int level)

arch/x86/boot/cpucheck.c

+1 −9
Original line number Diff line number Diff line
@@ -22,21 +22,13 @@ 


#ifdef _SETUP

# include "boot.h"

# include "bitops.h"

#endif

#include <linux/types.h>

#include <asm/cpufeature.h>

#include <asm/processor-flags.h>

#include <asm/required-features.h>

#include <asm/msr-index.h>



struct cpu_features {

	int level;		/* Family, or 64 for x86-64 */

	int model;

	u32 flags[NCAPINTS];

};



static struct cpu_features cpu;

struct cpu_features cpu;

static u32 cpu_vendor[3];

static u32 err_flags[NCAPINTS];

arch/x86/boot/main.c

+5 −0
Original line number Diff line number Diff line
@@ -73,6 +73,11 @@ static void keyboard_set_repeat(void) 
 */

static void query_ist(void)

{

	/* Some older BIOSes apparently crash on this call, so filter

	   it from machines too old to have SpeedStep at all. */

	if (cpu.level < 6)

		return;



	asm("int $0x15"

	    : "=a" (boot_params.ist_info.signature),

	      "=b" (boot_params.ist_info.command),