Commit Graph

88800 Commits

Author SHA1 Message Date
Hiroshi Shimamoto 8fa6878ffc x86: split cpuinfo from setup_64.c into cpu/proc_64.c
x86 /proc/cpuinfo code can be unified.
This is the first step of unification.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:48 +02:00
Paolo Ciarrocchi 637cba0261 x86: coding style fixes to arch/x86/mach-generic/bigsmp.c
arch/x86/mach-generic/bigsmp.o:
   text    data     bss     dec     hex filename
   1271     144       4    1419     58b bigsmp.o.before
   1271     144       4    1419     58b bigsmp.o.after
md5:
 b83aad375294c002c79b03c3a2e4be35  bigsmp.o.before.asm
 b83aad375294c002c79b03c3a2e4be35  bigsmp.o.after.asm

Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:48 +02:00
Paolo Ciarrocchi c99aa3804e x86: coding style fixes to arch/x86/kernel/cpu/nexgen.c
arch/x86/kernel/cpu/nexgen.o:
   text    data     bss     dec     hex filename
    111     316       0     427     1ab nexgen.o.before
    111     316       0     427     1ab nexgen.o.after
md5:
 e796efefea9ebc6644338bad226599ee  nexgen.o.before.asm
 e796efefea9ebc6644338bad226599ee  nexgen.o.after.asm

Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:48 +02:00
Paolo Ciarrocchi 8108576a78 x86: coding style fixes to arch/x86/mach-generic/summit.c
File is now error/warning free.

arch/x86/mach-generic/summit.o:
   text    data     bss     dec     hex filename
   1481     140       0    1621     655 summit.o.before
   1481     140       0    1621     655 summit.o.after
md5:
 7b7dc1cbd381af7b9393da989da5b0fd  summit.o.before.asm
 7b7dc1cbd381af7b9393da989da5b0fd  summit.o.after.asm

Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:48 +02:00
Paolo Ciarrocchi 651bbe16d0 x86: coding style fixes to arch/x86/mach-generic/default.c
Just whitespace cleanups.

total: 0 errors, 0 warnings, 26 lines checked
arch/x86/mach-generic/default.c has no obvious style problems and is ready for submission.

arch/x86/mach-generic/default.o:
   text    data     bss     dec     hex filename
   1036     140       0    1176     498 default.o.before
   1036     140       0    1176     498 default.o.after
md5:
f283c53022c568f3162bbcde44f65762  default.o.before.asm
f283c53022c568f3162bbcde44f65762  default.o.after.asm

Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:48 +02:00
Paolo Ciarrocchi 9b0c502882 x86: coding style fixes to arch/x86/mach-generic/probe.c
The patch kills 20 errors and a few warnings.

arch/x86/mach-generic/probe.o:
   text    data     bss     dec     hex filename
    578      45       0     623     26f probe.o.before
    578      45       0     623     26f probe.o.after
md5:
86eb1c3e3cf37f81d37bcd9a0c9f14ad  probe.o.before.asm
86eb1c3e3cf37f81d37bcd9a0c9f14ad  probe.o.after.asm

Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:48 +02:00
Paolo Ciarrocchi d4413732b5 x86: coding style fixes to arch/x86/oprofile/op_model_athlon.c
The patch fixes 33 errors and a few warnings reported by checkpatch.pl

arch/x86/oprofile/op_model_athlon.o:
   text    data     bss     dec     hex filename
   1691       0      32    1723     6bb op_model_athlon.o.before
   1691       0      32    1723     6bb op_model_athlon.o.after
md5:
c354bc2d7140e1e626c03390eddaa0a6  op_model_athlon.o.before.asm
c354bc2d7140e1e626c03390eddaa0a6  op_model_athlon.o.after.asm

Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:48 +02:00
Paolo Ciarrocchi 8b45b72b04 x86: coding style fixes to arch/x86/oprofile/op_model_ppro.c
no code changed:

arch/x86/oprofile/op_model_ppro.o:
   text    data     bss     dec     hex filename
   1765       0      16    1781     6f5 op_model_ppro.o.before
   1765       0      16    1781     6f5 op_model_ppro.o.after
md5:
71c7f68d2197d686e3d1121bc18a6b6e  op_model_ppro.o.before.asm
71c7f68d2197d686e3d1121bc18a6b6e  op_model_ppro.o.after.asm

Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:48 +02:00
Paolo Ciarrocchi 8000a83f43 x86: coding style fixes to arch/x86/kernel/x8664_ksyms_64.c
arch/x86/kernel/x8664_ksyms_64.o:
   text    data     bss     dec     hex filename
      0       0       0       0       0 x8664_ksyms_64.o.before
      0       0       0       0       0 x8664_ksyms_64.o.after
md5:
2dd2d82a2b440a3c29b9ac9ce3221994  x8664_ksyms_64.o.before.asm
2dd2d82a2b440a3c29b9ac9ce3221994  x8664_ksyms_64.o.after.asm

Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:48 +02:00
Paolo Ciarrocchi 1577720524 x86: coding style fixes to arch/x86/kernel/cpu/mcheck/p5.c
The patch make the file errors free.
Only 4 "WARNING: line over 80 characters" left.

arch/x86/kernel/cpu/mcheck/p5.o:
   text    data     bss     dec     hex filename
    452       0       4     456     1c8 p5.o.before
    452       0       4     456     1c8 p5.o.after
md5:
50c945ef150aa95bf0481cc3e1dc3315  p5.o.before.asm
50c945ef150aa95bf0481cc3e1dc3315  p5.o.after.asm

Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:48 +02:00
Paolo Ciarrocchi 8cf36d2bc5 x86: coding style fixes to arch/x86/lib/string_32.c
The patch kills 45 errors and a few warnings.

The file is now error/warning free:
total: 0 errors, 0 warnings, 237 lines checked
arch/x86/lib/string_32.c has no obvious style problems and is ready for submission.

no code changed:

arch/x86/lib/string_32.o:
   text    data     bss     dec     hex filename
    639       0       0     639     27f string_32.o.before
    639       0       0     639     27f string_32.o.after
md5:
2db1c48187cf5113bb595153ee1fc73d  string_32.o.before.asm
2db1c48187cf5113bb595153ee1fc73d  string_32.o.after.asm

Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:48 +02:00
Paolo Ciarrocchi 325f86ec6d x86: coding style fixes to arch/x86/kernel/syscall_64.c
After the patch:
total: 0 errors, 1 warnings, 29 lines checked

no code changed:

arch/x86/kernel/syscall_64.o:
   text    data     bss     dec     hex filename
   2304       0       0    2304     900 syscall_64.o.before
   2304       0       0    2304     900 syscall_64.o.after
md5:
0fdbb875cde8892296585226b92f4333  syscall_64.o.before.asm
0fdbb875cde8892296585226b92f4333  syscall_64.o.after.asm

Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:48 +02:00
Paolo Ciarrocchi e940659788 x86: coding style fixes to arch/x86/lib/memmove_64.c
After the patch:

  total: 0 errors, 0 warnings, 21 lines checked

no code changed:

arch/x86/lib/memmove_64.o:
   text    data     bss     dec     hex filename
    116       0       0     116      74 memmove_64.o.before
    116       0       0     116      74 memmove_64.o.after
md5:
2d6b0951cafb86a11a222cdd70f6104f  memmove_64.o.before.asm
2d6b0951cafb86a11a222cdd70f6104f  memmove_64.o.after.asm

Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:48 +02:00
Ian Campbell 87253d1b4f x86: boot protocol updates
Also update field names to simply payload_{offset,length} so as to not rule
out uncompressed images.

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: virtualization@lists.linux-foundation.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:48 +02:00
David P. Reed bc0a733fac x86: define outb_pic and inb_pic to stop using outb_p and inb_p
x86: define outb_pic and inb_pic to stop using outb_p and inb_p

The delay between io port accesses to the PIC is now defined using outb_pic
and inb_pic.  This fix provides the next step, using udelay(2) to define the
*PIC specific* timing requirements, rather than on bus-oriented timing, which
is not well calibrated.

Again, the primary reason for fixing this is to use proper delay strategy,
and in particular to fix crashes that can result from using port 80 writes
on machines that have resources on port 80, such as the ENE chips used by Quanta
in latops it designs and sells to, e.g. HP.

Signed-off-by: David P. Reed <dpreed@reed.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 17:40:48 +02:00
Ian Campbell c92a7a54d6 x86: reduce arch/x86/mm/ioremap.o size
> Don't we have a special section for page-aligned data so it doesn't
> waste most of two pages?

We have .bss.page_aligned and it seems appropriate to use it.

    text	   data	    bss	    dec	    hex	filename
    -   3388	   8236	      4	  11628	   2d6c	../build-32/arch/x86/mm/ioremap.o
    +   3388	     48	   4100	   7536	   1d70	../build-32/arch/x86/mm/ioremap.o

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:47 +02:00
Ingo Molnar edc05e6de3 x86: more coding style fixes in centaur.c
no code changed:

 arch/x86/kernel/cpu/centaur.o:
    text    data     bss     dec     hex filename
    1031     324       0    1355     54b centaur.o.before
    1031     324       0    1355     54b centaur.o.after

 md5:
  4f306a7f980b58eb69c4bdcfcde565f1  centaur.o.before.asm
  4f306a7f980b58eb69c4bdcfcde565f1  centaur.o.after.asm

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:47 +02:00
Paolo Ciarrocchi 29a9994bd8 x86: coding style fixes for arch/x86/kernel/cpu/centaur.c
Kills more than 150 errors/warnings

Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:47 +02:00
Ingo Molnar ca5d3f1491 x86: clean up mmx_32.c
checkpatch.pl --file cleanups:

  before:
    total: 74 errors, 3 warnings, 386 lines checked

  after:
    total: 0 errors, 0 warnings, 377 lines checked

no code changed:

arch/x86/lib/mmx_32.o:
   text    data     bss     dec     hex filename
   1323       0       8    1331     533 mmx_32.o.before
   1323       0       8    1331     533 mmx_32.o.after

md5:
   4cc39f1017dc40a5ebf02ce0ff7312bc  mmx_32.o.before.asm
   4cc39f1017dc40a5ebf02ce0ff7312bc  mmx_32.o.after.asm

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:47 +02:00
David P. Reed 04aaa7ba09 x86: fix cmos read and write to not use inb_p and outb_p
fix code to access CMOS rtc registers so that it does not use inb_p and
outb_p routines, which are deprecated.  Extensive research on all known
CMOS RTC chipset timing shows that there is no need for a delay in
accessing the registers of these chips even on old machines. These chipa
are never on an expansion bus, but have always been "motherboard"
resources, either in the processor chipset or explicitly on the
motherboard, and they are not part of the ISA/LPC or PCI buses, so
delays should not be based on bus timing. The reason to fix it:

 1) port 80 writes often hang some laptops that use ENE EC chipsets,
    esp. those designed and manufactured by Quanta for HP;

 2) RTC accesses are timing sensitive, and extra microseconds may matter;

 3) the new "io_delay" function is calibrated by expansion bus timing needs,
    thus is not appropriate for access to CMOS rtc registers.

Signed-off-by: David P. Reed <dpreed@reed.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:47 +02:00
Thomas Petazzoni 03ae5768b6 x86: use ELF section to list CPU vendor specific code
Replace the hardcoded list of initialization functions for each CPU
vendor by a list in an ELF section, which is read at initialization in
arch/x86/kernel/cpu/cpu.c to fill the cpu_devs[] array. The ELF
section, named .x86cpuvendor.init, is reclaimed after boot, and
contains entries of type "struct cpu_vendor_dev" which associates a
vendor number with a pointer to a "struct cpu_dev" structure.

This first modification allows to remove all the VENDOR_init_cpu()
functions.

This patch also removes the hardcoded calls to early_init_amd() and
early_init_intel(). Instead, we add a "c_early_init" member to the
cpu_dev structure, which is then called if not NULL by the generic CPU
initialization code. Unfortunately, in early_cpu_detect(), this_cpu is
not yet set, so we have to use the cpu_devs[] array directly.

This patch is part of the Linux Tiny project, and is needed for
further patch that will allow to disable compilation of unused CPU
support code.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:47 +02:00
Glauber Costa bc7c314d70 x86, vsmp: use the paravirt helpers
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ravikiran Thirumalai <kiran@scalemp.com>
Acked-by: Shai Fultheim <shai@scalemp.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:47 +02:00
Glauber Costa 96597fd2be x86: introduce vsmp paravirt helpers
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ravikiran Thirumalai <kiran@scalemp.com>
Acked-by: Shai Fultheim <shai@scalemp.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:47 +02:00
Glauber Costa 2785c8d052 x86: call vsmp_init explicitly
It becomes to early for ioremap, so we use early_ioremap

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ravikiran Thirumalai <kiran@scalemp.com>
Acked-by: Shai Fultheim <shai@scalemp.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:47 +02:00
Glauber Costa a2beab31b1 x86: make vsmp_init void, instead of static int
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ravikiran Thirumalai <kiran@scalemp.com>
Acked-by: Shai Fultheim <shai@scalemp.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:47 +02:00
Glauber Costa 270883a8b9 x86: change vsmp compile dependency
Change Makefile so vsmp_64.o object is dependent
on PARAVIRT, rather than X86_VSMP

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ravikiran Thirumalai <kiran@scalemp.com>
Acked-by: Shai Fultheim <shai@scalemp.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:47 +02:00
Robert Richter e319e76521 x86: apic: extended interrupt LVT support for AMD
Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:47 +02:00
Yinghai Lu 04adf11435 x86: remove never used nodenumer in pda
Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:47 +02:00
Yinghai Lu beafe91f1c x86: get apic_id later in acpi_numa_processor_affinity_init
we don't need get that so early.

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:47 +02:00
Arnaldo Carvalho de Melo 28d2312881 x86: reducing debuginfo size by removing unneeded includes
I found it strange that the struct sk_buff definition was found
inside the DWARF debugging sections in the generated object, so I verified
and found that there is no need for the files that bring struct sk_buff
definition into this file and verified also that sk_buff is not brought
in indirectly too, thru other headers.

	I went on and removed many other unneeded includes and the end
result is:

[acme@doppio net-2.6]$ l /tmp/sys_ia32.o.before /tmp/sys_ia32.o.after
-rw-rw-r-- 1 acme acme 185240 2008-02-06 19:19 /tmp/sys_ia32.o.after
-rw-rw-r-- 1 acme acme 248328 2008-02-06 19:00 /tmp/sys_ia32.o.before

	Almost 64KB only on this object file!

	There were no other side effects from this change:

[acme@doppio net-2.6]$ objcopy -j "text" /tmp/sys_ia32.o.before /tmp/text.before
[acme@doppio net-2.6]$ objcopy -j "text" /tmp/sys_ia32.o.after /tmp/text.after
[acme@doppio net-2.6]$ md5sum /tmp/text.before /tmp/text.after
b7ac9b17942add68494e698e4f965d36  /tmp/text.before
b7ac9b17942add68494e698e4f965d36  /tmp/text.after

	One of the complaints about using tools such as systemtap is
that one has to install the huge kernel-debuginfo package:

[acme@doppio net-2.6]$ rpm -q --qf "%{size}\n" kernel-rt-debuginfo
471737710
543867594
[acme@doppio net-2.6]$

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:46 +02:00
Ingo Molnar 52b387197b x86: bump image header to version 2.08.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:46 +02:00
Ian Campbell 7d6e737c8d x86: add a crc32 checksum to the kernel image.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:46 +02:00
Ian Campbell 099e137726 x86: use ELF format in compressed images.
Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: Ian Campbell <ijc@hellion.org.uk>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: virtualization@lists.linux-foundation.org
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: virtualization@lists.linux-foundation.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:46 +02:00
Harvey Harrison e0bf0f75bd x86: define DEBUG_SIG in signal_64.c
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:46 +02:00
Harvey Harrison 866bc13fc4 x86: Unify argument names in signal_32|64.c
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:46 +02:00
Harvey Harrison 123a63476c x86: move struct definitions to unifed sigframe.h
[ tglx@linutronix.de: cleanup the other structs as well ]

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:46 +02:00
Harvey Harrison 2d19c45806 x86: use sizeof(long) to unify signal_32|64.c
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:46 +02:00
Harvey Harrison 1a1768039c x86: Use FIX_EFLAGS define in X86_64
[ tglx@linutronix.de: simplified ]

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:46 +02:00
Harvey Harrison ac66f3fd89 x86: reduce trivial style differences in signal_32|64.c
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:46 +02:00
Harvey Harrison c3e6ff87a3 x86: regparm(3) is mandatory, no need to annotate
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:45 +02:00
Harvey Harrison 9902a702c7 x86: make X86_32 pt_regs members unsigned long
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:45 +02:00
Harvey Harrison 92bc205685 x86: change most X86_32 pt_regs members to unsigned long
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:45 +02:00
Andi Kleen 45de707911 x86: enable ACPI extended century handling for 32bit
The extended century readout does not solve the year 2038 problem on
32bit!

v2: Fix compilation on !ACPI, pointed out by tglx

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:45 +02:00
Andi Kleen 068c9222d0 x86: add warning when RTC clock reports binary
We assume that the RTC clock is BCD, so print a warning if it claims
to be binary.

[ tglx@linutronix.de: changed to WARN_ON - we want to know that!
  If no one reports it we can remove the complete if (RTC_ALWAYS_BCD)
  magic, which has RTC_ALWAYS_BCD defined to 1 since Linux 1.0 ... ]

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:45 +02:00
Andi Kleen b62576a2f5 x86: use year 2000 offset for cmos clock
We know it is already after 2000. Use the year 2000 offset for both 32
and 64 bit, which removes ifdefs and the 1970 magic.

[ tglx@linutronix.de: remove 1970 magic, replace bogus commit message ]

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:45 +02:00
Yinghai Lu 48c508b364 x86: clean up find_e820_area(), 64-bit
Change size to unsigned long, becase caller and user all used unsigned long.
Also make bad_addr take an alignment parameter.

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:45 +02:00
Andi Kleen ef9257668e x86: do kernel direct mapping at boot using GB pages
The AMD Fam10h CPUs support new Gigabyte page table entry for
mapping 1GB at a time. Use this for the kernel direct mapping.

Only done for 64bit because i386 does not support GB page tables.

This only applies to the data portion of the direct mapping; the
kernel text mapping stays with 2MB pages because the AMD Fam10h
microarchitecture does not support GB ITLBs and AMD recommends
against using GB mappings for code.

Can be disabled with disable_gbpages on the kernel command line

[ tglx@linutronix.de: simplify enable code ]
[ Yinghai Lu <yinghai.lu@sun.com>: boot fix on 256 GB RAM ]

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:45 +02:00
Ingo Molnar 00d1c5e057 x86: add gbpages switches
These new controls toggle experimental support for a new CPU feature,
the straightforward extension of largepages from the pmd level to the
pud level, which allows 1GB (kernel) TLBs instead of 2MB TLBs.

Turn it off by default, as this code has not been tested well enough yet.

Use the CONFIG_DIRECT_GBPAGES=y .config option or gbpages on the
boot line can be used to enable it. If enabled in the .config then
nogbpages boot option disables it.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:45 +02:00
H. Peter Anvin fe770bf031 x86: clean up the page table dumper and add 32-bit support
Clean up the page table dumper (fix boundary conditions, table driven
address ranges, some formatting changes since it is no longer using
the kernel log but a separate virtual file), and generalize to 32
bits.

[ mingo@elte.hu: x86: fix the pagetable dumper ]

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:45 +02:00
Arjan van de Ven 926e5392ba x86: add code to dump the (kernel) page tables for visual inspection by kernel developers
This patch adds code to the kernel to have an (optional)
/proc/kernel_page_tables debug file that basically dumps the kernel
pagetables; this allows us kernel developers to verify that nothing fishy is
going on and that the various mappings are set up correctly. This was quite
useful in finding various change_page_attr() bugs, and is very likely to be
useful in the future as well.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Cc: mingo@elte.hu
Cc: tglx@tglx.de
Cc: hpa@zytor.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-17 17:40:45 +02:00