Commit Graph

35 Commits

Author SHA1 Message Date
Anton Blanchard b926a88a7b powerpc: Reduce differences between pseries and ppc64 defconfigs
The pseries and ppc64 defconfigs have drifted apart over the years. Reduce
some of the differences while still keeping the idea that the ppc64 defconfig
is cross platform but enables fewer features than pseries, eg NR_CPUS is
lower.

Also enable a number of common adapters as modules.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-02-09 13:56:06 +11:00
Anton Blanchard 030bdc3fd0 powerpc/defconfigs: Set HZ=100 on pseries and ppc64 defconfigs
Now we have high res timers there is less of a reason for a high HZ value.
Furthermore I think there a few reasons we should reduce HZ to 100:

- Timer interrupt overhead. While this overhead is small, there are
  applications that are very sensitive to jitter (eg some HPC apps).

- Issues with the timer wheel code. When coming out of NO_HZ idle we work our
  way through the timer code one tick at a time.  If we have been idle a long
  time, this adds up - I sometimes see milliseconds of time spent in that
  loop.

  Long term we should fix the timer wheel algorithm, but for now if we reduce
  HZ then we reduce the amount of work the timer code has to do when coming
  out of idle.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:54:26 +11:00
Anton Blanchard 55f2fa1473 powerpc/defconfigs: Disable token ring in powerpc defconfigs
Token what? Lets save some space in our powerpc kernels and remove token
ring support.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:54:25 +11:00
Anton Blanchard c2613c7f80 powerpc/defconfigs: Reduce 64bit vmlinux by making acenic and cramfs modules
Machines with acenic adapters are rare these days, so we may as well make it
a module. Cramfs is also very rarely used so we can make it a module.

Together this saves 143kB on a 64bit compile:

   text	   data	    bss	    dec	    hex	filename
8247176	1729404	1221988	11198568	 aae068	vmlinux~
8134997	1727588	1188836	11051421	 a8a19d	vmlinux

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-12-18 14:54:25 +11:00
Anton Blanchard b3c86ee6d1 powerpc: Disable HCALL_STATS by default
The overhead of HCALL_STATS is quite high and the functionality is very
rarely used.  Key statistics are also missing (eg min/max).

With the new hcall tracepoints much more powerful tracing can be done in
a kernel module.  Lets disable this by default.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-10-28 16:13:04 +11:00
Anton Blanchard 4c6cf42843 powerpc/pseries: Enable relay in pseries_defconfig
Enable relay in pseries config, ppc64_defconfig had it enabled but pseries
did not.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07 15:18:59 +10:00
Jean Delvare dd7f8dbe2b eeprom: More consistent symbol names
Now that all EEPROM drivers live in the same place, let's harmonize
their symbol names.

Also fix eeprom's dependencies, it definitely needs sysfs, and is no
longer experimental after many years in the kernel tree.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: David Brownell <dbrownell@users.sourceforge.net>
2009-01-26 21:19:57 +01:00
Paul Mackerras cb8fdc69a2 powerpc: Update desktop/server defconfigs
Turned off CONFIG_PCI_LEGACY and turned on EXT4, and otherwise mostly
took the defaults.  This also updates ppc6xx_defconfig, which covers
the 6xx/7xx/7xxx-based embedded boards.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-11-11 19:42:30 +11:00
Paul Mackerras 9bdbb96332 powerpc: Update defconfigs for most non-embedded platforms
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-26 13:31:55 +10:00
Sonny Rao fe9e8d5377 powerpc: Add driver for Barrier Synchronization Register
Adds a character driver for BSR support on IBM POWER systems including
Power5 and Power6.  The BSR is an optional processor facility not currently
implemented by any other processors.  It's primary purpose is fast large SMP
synchronization.  More details on the BSR are in comments to the code which
follows.  This patch adds BSR driver to pseries_defconfig.

Signed-off-by: Sonny Rao <sonnyrao@linux.vnet.ibm.com>
Signed-off-by: Joel Schopp <jschopp@austin.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-07-15 12:24:55 +10:00
Paul Mackerras 09c201219b [POWERPC] Update defconfigs for desktop/server systems
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-20 20:04:12 +10:00
Stephen Rothwell a8f75ea70c [POWERPC] Remove CONFIG_PCI_LEGACY from some configs
This will remove some build warnings and doesn't stop us building any
drivers that we were building previously with these configs.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-07 13:49:26 +10:00
Paul Mackerras 93ce4e2d2d [POWERPC] Update some defconfigs
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-03-20 11:21:32 +11:00
Paul Mackerras 43af66e135 [POWERPC] Update defconfigs
This updates all the defconfigs in arch/powerpc/configs except iseries
and ps3, which were updated by the preceding commits.

This mostly takes the defaults, except that I turned on tickless idle
and high-resolution timers for everything, and turned off instrumentation
support and "Fair group CPU scheduler" for the smaller/embedded platforms.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-06 16:54:02 +11:00
Paul Jackson c2e2c7fa1c task cgroups: enable cgroups by default in some configs
In pre-cgroup cpusets, a few config files enabled cpusets by default.

Signed-off-by: Paul Jackson <pj@sgi.com>
Cc: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:36 -07:00
Anton Blanchard 8129535b6b [POWERPC] Enable NO_HZ and high res timers for pseries and ppc64 configs
Enable NO_HZ and high res timers for the ppc64 and pseries defconfigs.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-17 22:30:09 +10:00
Anton Blanchard 309a109255 [POWERPC] Enable SLUB in *_defconfig
When checking out the new NO_HZ support in powerpc, I noticed we never
slept for more than 2 seconds.  It turns out SLAB has a 2 second per cpu
timer that causes this.

After switching to SLUB I see some nice 4 second sleeps which is the
limit on this POWER6 box (the decrementer ticks at 512MHz):

slept 4.19 sec
slept 4.19 sec
slept 4.19 sec
slept 4.19 sec
slept 3.96 sec
slept 3.80 sec
slept 2.99 sec

Since SLUB is now the default and some powerpc defconfigs already enable
it, lets enable SLUB across the board for consistency.  While doing this
I also noticed that the maple defconfig has SLAB debugging enabled which
is sure to make your box nice and slow.  Fix that too.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-17 22:30:08 +10:00
Paul Mackerras 13a6976afd [POWERPC] Update defconfigs
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-30 16:51:51 +10:00
Paul Mackerras ca74c01344 [POWERPC] Update defconfigs
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-26 14:38:47 +10:00
Olaf Hering aebcbf39be [POWERPC] use winbond libata instead of ide driver for pseries CD drives
Change the default for the built-in IDE on p610/p615/p630 from
ide to libata. libata has better error handling and the drive can
recover when hald does its CD media polling.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-17 10:21:26 +11:00
Paul Mackerras e89debcd18 [POWERPC] Update defconfigs
Mostly took the defaults, except tried to get the netfilter options
more or less as they were before.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-22 22:39:24 +11:00
Andy Whitcroft 7516795739 [PATCH] Reintroduce NODES_SPAN_OTHER_NODES for powerpc
Reintroduce NODES_SPAN_OTHER_NODES for powerpc

Revert "[PATCH] Remove SPAN_OTHER_NODES config definition"
    This reverts commit f62859bb68.
Revert "[PATCH] mm: remove arch independent NODES_SPAN_OTHER_NODES"
    This reverts commit a94b3ab7ea.

Also update the comments to indicate that this is still required
and where its used.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Kravetz <kravetz@us.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Acked-by: Will Schmidt <will_schmidt@vnet.ibm.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-21 13:35:06 -07:00
Brian King 3afbf5d6ef [POWERPC] Update pSeries defconfig for SATA
Since the ipr driver now supports SATA and depends on libata,
enable libata to get built.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-06 21:10:41 +10:00
Olaf Hering 2cec1b452c [POWERPC] update powerpc defconfig files after libata kconfig breakage
Update defconfig files after libata .config breakage

 sed -i 's/CONFIG_SCSI_SATA_/CONFIG_SATA_/;s/CONFIG_SCSI_SATA/CONFIG_ATA/' arch/powerpc/configs/*g

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-26 15:41:03 +10:00
Paul Mackerras fb7d527c1a [POWERPC] Update defconfigs
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-10 11:04:36 +10:00
Will Schmidt 90bdde362c [POWERPC] update {g5,iseries,pseries}_defconfigs
Updating the defconfigs for iseries, pseries, and G5.   Sticking with
the defaults, with the following exceptions:  I've turned off HW_RANDOM
for all three configs.   For G5, I've enabled SND_AOA and friends as
modules; this includes the FABRIC_LAYOUT, ONYX, TAS, TOONIE and
SOUNDBUS* config options.

Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-08-17 16:41:10 +10:00
Anton Blanchard f2b09c8189 [POWERPC] Update pseries defconfig
pseries defconfig updates:

- Enable jsm and re-enable qlogic FC drivers as modules.
- Enable ocfs2, autofs4 and fuse filesystems as modules.
- Enable Kprobes.
- Enable ebus, binfmt_misc, sas attrs, md5 reshape, hvc rtas backend and
  some infiniband options.
- Finally disable debug options: DEBUG_MUTEXES and DEBUG_STACK_USAGE.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-06-15 19:31:26 +10:00
Will Schmidt 5ad1bfeaf7 [PATCH] powerpc: update {g5,iseries,pseries}_defconfigs
Default choices for all.

Signed-off-by: Will Schmidt <willschm@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-04-21 22:34:03 +10:00
Olof Johansson 7c375b9aba [PATCH] powerpc: Update {g5,pseries,ppc64}_defconfig
Update defconfigs for g5, pseries and generic ppc64. Default choices
for everything, with the following exceptions:

 * Enable WINDFARM_PM112 on g5 and ppc64.
 * Increase CONFIG_NR_CPUS to 4 in g5_defconfig
 * CONFIG_TIGON3=y instead of =m in g5_defconfig

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-24 11:36:35 +11:00
Jesse Brandeburg 35ec56bb78 [PATCH] e1000: Added disable packet split capability
Adds the ability to disability packet split at compile time and use the legacy receive path on PCI express hardware.  Made this a CONFIG option and modified the Kconfig, to reflect the new option.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-01-18 16:17:57 -05:00
Paul Mackerras 5a1244e9dd powerpc: update defconfigs
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-12-20 16:00:17 +11:00
Mike Kravetz f62859bb68 [PATCH] Remove SPAN_OTHER_NODES config definition
The config option SPAN_OTHER_NODES was created so that we could
make pSeries numa layouts work within the DISCONTIG memory model.
Now that DISCONTIG has been replaced by SPARSEMEM, we can eliminate
this option.

I'll be sending a separate patch to Andrew to remove the arch
independent code as pSeries was the only arch that needed this.

Signed-off-by: Mike Kravetz <kravetz@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-18 14:45:54 +11:00
Benjamin Herrenschmidt 5444a5e9e8 [PATCH] powerpc: update defconfigs
My patch moving ppc64 RTC to genrtc was supposed to update all
defconfigs, but for some reason, the patch actually posted only had the
pseries one... ouch. This patch properly updates all defconfigs.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-16 13:28:32 +11:00
Benjamin Herrenschmidt 3136254ca5 [PATCH] powerpc: kill ppc64 rtc.c, use genrtc instead
This moves the rtas RTC callbacks to rtas-rtc.c in arch/powerpc/kernel,
and kills the rest of arch/ppc64/kernel/rtc.c which was just a duplicate
of the genrtc functionality. Also enable build of genrtc for
CONFIG_PPC64 (it just works are we already have the required callbacks)
and enable it in all defconfigs.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-14 16:36:08 +11:00
Michael Ellerman 60d4f4c656 powerpc: Copy default configs into arch/powerpc/configs
Copy default configs into arch/powerpc/configs, rename bpa_defconfig to
cell_defconfig while we're at it.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
2005-11-03 15:24:57 +11:00