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  1. 27 1月, 2009 1 次提交
  3. 19 12月, 2008 1 次提交
  5. 24 11月, 2008 1 次提交
  7. 13 10月, 2008 1 次提交
  9. 06 9月, 2008 1 次提交
    • H
      x86: additional defconfig updates · 5b7e41ff
      由 H. Peter Anvin 提交于 
      Additional updates to the x86 defconfigs.  The goals are, as before:

- Make them usable to testers, more so than distributors or end users,
  both of which are likely to have their own config already.
- Keep 32 and 64 bits as similar as is practical.

Changes:

- Use a more generic CPU type (ppro and generic, respectively).
- Bump number of CPUs to 64 (few if any NR_CPUS arrays left).
- Enable PAT.
- Enable OPTIMIZE_INLINE.
- Enable microcode update support.
- Build SMT scheduler support (in addition to MC).
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      5b7e41ff
  11. 04 9月, 2008 1 次提交
  13. 27 8月, 2008 1 次提交
    • H
      x86: update defconfigs · c1b362e3
      由 H. Peter Anvin 提交于 
      Enable some option commonly used by testers in defconfig, including
some very common device drivers and network boot support.  defconfig
is still not meant to be a kitchen-sink configuration.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
      c1b362e3
  15. 20 7月, 2008 1 次提交
    • I
      Subject: devmem, x86: fix rename of CONFIG_NONPROMISC_DEVMEM · d092633b
      由 Ingo Molnar 提交于 
      From: Arjan van de Ven <arjan@infradead.org>
Date: Sat, 19 Jul 2008 15:47:17 -0700

CONFIG_NONPROMISC_DEVMEM was a rather confusing name - but renaming it
to CONFIG_PROMISC_DEVMEM causes problems on architectures that do not
support this feature; this patch renames it to CONFIG_STRICT_DEVMEM,
so that architectures can opt-in into it.

( the polarity of the option is still the same as it was originally; it
  needs to be for now to not break architectures that don't have the
  infastructure yet to support this feature)
Signed-off-by: NArjan van de Ven <arjan@linux.intel.com>
Cc: "V.Radhakrishnan" <rk@atr-labs.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
---
      d092633b
  17. 13 5月, 2008 2 次提交
  19. 26 4月, 2008 1 次提交
    • I
      x86: add optimized inlining · 60a3cdd0
      由 Ingo Molnar 提交于 
      add CONFIG_OPTIMIZE_INLINING=y.

allow gcc to optimize the kernel image's size by uninlining
functions that have been marked 'inline'. Previously gcc was
forced by Linux to always-inline these functions via a gcc
attribute:

 #define inline	inline __attribute__((always_inline))

Especially when the user has already selected
CONFIG_OPTIMIZE_FOR_SIZE=y this can make a huge difference in
kernel image size (using a standard Fedora .config):

   text    data     bss     dec           hex filename
   5613924  562708 3854336 10030968    990f78 vmlinux.before
   5486689  562708 3854336  9903733    971e75 vmlinux.after

that's a 2.3% text size reduction (!).
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      60a3cdd0
  21. 10 2月, 2008 1 次提交
  23. 30 1月, 2008 1 次提交
    • C
      x86: 64-bit, make sparsemem vmemmap the only memory model · b263295d
      由 Christoph Lameter 提交于 
      Use sparsemem as the only memory model for UP, SMP and NUMA.  Measurements
indicate that DISCONTIGMEM has a higher overhead than sparsemem.  And
FLATMEMs benefits are minimal.  So I think its best to simply standardize
on sparsemem.

Results of page allocator tests (test can be had via git from slab git
tree branch tests)

Measurements in cycle counts. 1000 allocations were performed and then the
average cycle count was calculated.

Order	FlatMem	Discontig	SparseMem
0	  639	  665		  641
1	  567	  647		  593
2	  679	  774		  692
3	  763	  967		  781
4	  961	 1501		  962
5	 1356	 2344		 1392
6	 2224	 3982		 2336
7	 4869	 7225		 5074
8	12500	14048		12732
9	27926	28223		28165
10	58578	58714		58682

(Note that FlatMem is an SMP config and the rest NUMA configurations)

Memory use:

SMP Sparsemem
-------------

Kernel size:

   text    data     bss     dec     hex filename
3849268  397739 1264856 5511863  541ab7 vmlinux

             total       used       free     shared    buffers     cached
Mem:       8242252      41164    8201088          0        352      11512
-/+ buffers/cache:      29300    8212952
Swap:      9775512          0    9775512

SMP Flatmem
-----------

Kernel size:

   text    data     bss     dec     hex filename
3844612  397739 1264536 5506887  540747 vmlinux

So 4.5k growth in text size vs. FLATMEM.

             total       used       free     shared    buffers     cached
Mem:       8244052      40544    8203508          0        352      11484
-/+ buffers/cache:      28708    8215344

2k growth in overall memory use after boot.

NUMA discontig:

   text    data     bss     dec     hex filename
3888124  470659 1276504 5635287  55fcd7 vmlinux

             total       used       free     shared    buffers     cached
Mem:       8256256      56908    8199348          0        352      11496
-/+ buffers/cache:      45060    8211196
Swap:      9775512          0    9775512

NUMA sparse:

   text    data     bss     dec     hex filename
3896428  470659 1276824 5643911  561e87 vmlinux

8k text growth. Given that we fully inline virt_to_page and friends now
that is rather good.

             total       used       free     shared    buffers     cached
Mem:       8264720      57240    8207480          0        352      11516
-/+ buffers/cache:      45372    8219348
Swap:      9775512          0    9775512

The total available memory is increased by 8k.

This patch makes sparsemem the default and removes discontig and
flatmem support from x86.

[ akpm@linux-foundation.org: allnoconfig build fix ]
Acked-by: NAndi Kleen <ak@suse.de>
Signed-off-by: NChristoph Lameter <clameter@sgi.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
      b263295d
  25. 30 10月, 2007 1 次提交
  27. 26 10月, 2007 1 次提交
    • S
      x86: move defconfig files for i386 and x86_64 to x86 · 2266cfd5
      由 Sam Ravnborg 提交于 
      With some small changes to kconfig makefile we can now
locate the defconfig files for i386 and x86_64 in
the configs/ subdirectory under x86.
make ARCH=i386 defconfig and make defconfig
works as expected also after this change.
But arch maintainers shall now update a defconfig file in
the configs/ directory.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      2266cfd5
  29. 31 8月, 2007 1 次提交
  31. 30 7月, 2007 1 次提交
  33. 22 7月, 2007 1 次提交
  35. 22 5月, 2007 1 次提交
  37. 03 5月, 2007 1 次提交
  39. 29 4月, 2007 1 次提交
    • J
      libata/IDE: remove combined mode quirk · 8cdfb29c
      由 Jeff Garzik 提交于 
      Both old-IDE and libata should be able handle all controllers and
devices found using normal resource reservation methods.

This eliminates the awful, low-performing split-driver configuration
where old-IDE drove the PATA portion of a PCI device, in PIO-only mode,
and libata drove the SATA portion of the /same/ PCI device, in DMA mode.
Typically vendors would ship SATA hard drive / PATA optical
configuration, which would lend itself to slow (PIO-only) CD-ROM
performance.

For Intel users running in combined mode, it is now wholly dependent on
your driver choice (potentially link order, if you compile both drivers
in) whether old-IDE or libata will drive your hardware.

In either case, you will get full performance from both SATA and PATA
ports now, without having to pass a kernel command line parameter.
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      8cdfb29c
  41. 17 3月, 2007 1 次提交
  43. 13 2月, 2007 1 次提交
  45. 11 1月, 2007 1 次提交
  47. 31 12月, 2006 1 次提交
  49. 16 12月, 2006 1 次提交
    • L
      Remove stack unwinder for now · d1526e2c
      由 Linus Torvalds 提交于 
      It has caused more problems than it ever really solved, and is
apparently not getting cleaned up and fixed.  We can put it back when
it's stable and isn't likely to make warning or bug events worse.

In the meantime, enable frame pointers for more readable stack traces.
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      d1526e2c
  51. 10 12月, 2006 1 次提交
  53. 07 12月, 2006 1 次提交
  55. 22 10月, 2006 1 次提交
  57. 06 10月, 2006 1 次提交
  59. 30 9月, 2006 1 次提交
  61. 26 9月, 2006 1 次提交
  63. 31 8月, 2006 1 次提交
  65. 30 7月, 2006 1 次提交
  67. 11 7月, 2006 1 次提交
  69. 27 6月, 2006 1 次提交
  71. 19 4月, 2006 1 次提交
  73. 10 4月, 2006 1 次提交
  75. 26 3月, 2006 1 次提交
  77. 21 2月, 2006 1 次提交