Disable THERM_PM72 and enable its replacements WINDFARM_PM72 and
WINDFARM_RM31 as modules. Update the udeb config accordingly. Thanks
to Milan Kupcevic.
svn path=/dists/sid/linux/; revision=22477
Various drivers that only build and run on 64-bit Macs are selected in
config; move those selections to config-arch-64-be.
CONFIG_WINDFARM is redundantly selected in config-arch-64-be; delete it
from there.
svn path=/dists/sid/linux/; revision=22476
From: Mauricio Faria de Oliveira <mauricfo@linux.vnet.ibm.com>
- The value of ppc64 is incorrect for ppc64el (specifically, console=tty0),
rendering the console useless (blank and unresponsive) if no kernel parameters
are specified (e.g., debian-installer netboot).
- It's not needed currently: the kernel correctly autodetects the console
on ppc64el platforms (hvc0 on pseries, hvc0 and hvc1 on powernv).
svn path=/dists/sid/linux/; revision=21943
KVM_BOOK3S_64_HV, KVM_BOOK3S_64_PR and KVM_XICS, but keep KVM_BOOK3S_64
disabled for now as it would trigger an ABI change (Partially addresses:
#761656).
usb/gadget: Enable USB_NET2280 as module
svn path=/dists/sid/linux/; revision=21849
Replace 'powerpc/powernv: Add calls to support little endian host'
with the version committed upstream.
Drop the ABI-preserving changes.
svn path=/dists/trunk/linux/; revision=21452
This config has options for little-endian PowerPC64 systems.
It shares most options with big-endian PowerPC64 systems.
The differences are:
- choice: Endianness selection
Build a little endian kernel.
- choice: Page size
64k pages have benefits (performance et al) over 4k pages on
IBM POWER processors.
The Debian ppc64el port primarily runs on this sort of hardware
and chances are it will also run on hardware based on it (i.e.,
OpenPOWER) [1] [2].
- Maximum number of CPUs
This was increased to 2048 (following pseries_le_defconfig).
For the currently announced systems, the number of CPUs range
between 80-192 (1 or 2 processor module(s) * 10 or 12 cores
per module * 8 threads per core) [3]. This is enough to have
to diverge from CONFIG_NR_CPUS=32 in the other powerpc ports.
For future systems, it's likely larger ones will be announced.
The rationale: consider the announced systems are classified
as 'scale-out' and 'entry-level', plus larger ones have been
historically made available for addressing other markets; and
notice the largest POWER7 server has 1024 CPUs (threads) [4],
and that the threads-per-core doubled from POWER7 to POWER8.
So, the 2048 value is a reasonable 'max' in that projection.
Certainly it is greater than what would be required for most
systems, but I belive 'max' makes sense in that case, if we
are not looking for kernel rebuild and/with different config
for the larger systems (although I would be ok with flavours).
- choice: Default CPUFreq governor
As other architectures, we would prefer the default cpufreq
governor to be 'ondemand'.
The currently available cpufreq driver is for the PowerNV
(non-virtualized) platform, where all processors are available.
In that scenario, statically running at the highest frequency
(specially on idle processors) is not very desireable for the
hardware around (servers), and it is not unlikely for future
hardware (possibly non-servers) to benefit too, considering
that energy savings have been increasingly important on most
environments.
(Note: the powernv-cpufreq driver was introduced only in 3.15;
so, this option has no effect in 3.14; it is harmless.
I can put in patches for enabling this on 3.14 soon.)
- Apple PowerMac based machines
This is being disabled temporarily, until a patch makes upstream
(restricting it to 'depends on !CPU_LITTLE_ENDIAN').
This hardware line has no (known) support for little endian
mode currently, and disabling it has the useful effect of also
disabling a lot of config options which 'depends on PPC_PMAC',
thus saving tens of lines from changing config files.
It indeed has to be disabled because it's enabled by default
('depends on BOOK3S', 'default y'), so even changing it from
config files would not be sufficient.
[1] 'OpenPOWER Foundation Unveils First Innovations and Roadmap'
http://openpowerfoundation.org/press-releases/openpower-foundation-unveils-first-innovations-and-roadmap/
[2] 'POWER8 Reference Board now available for Development!'
http://openpowerfoundation.org/technical/related-links/
[3] 'IBM Power System S812L and S822L'
http://www-03.ibm.com/systems/power/hardware/s812l-s822l/specs.html
[4] 'IBM Power 795 server'
http://www-03.ibm.com/systems/power/hardware/795/perfdata.html
Signed-off-by: Mauricio Faria de Oliveira <mauricfo@linux.vnet.ibm.com>
svn path=/dists/sid/linux/; revision=21422
powerpc/config is shared by powerpc, powerpcspe and ppc64, so move
it to kernelarch-powerpc/config where it will be automatically used
for all of them.
powerpc/config.powerpc64 is also used by ppc64, so move it to
kernelarch-powerpc/config-arch-64.
powerpcspe has only one flavour, so rename its config file to config.
svn path=/dists/trunk/linux/; revision=21265
Ben Hutchings
Maximilian Attems
Aurelien Jarno
Bastian Blank