linux/arch/parisc
Colin Watson 445c088f88 parisc: expose 32/64-bit capabilities in cpuinfo
It'd be rather useful for debian-installer if we could get hold of
accurate firmware information on whether only 32-bit kernels are
supported, only 64-bit kernels, or both; this would allow us to present
an accurate menu of kernel packages if more than one is available,
rather than the user having to guess. This patch attempts to expose it
in cpuinfo.

I adjusted pdc_model_capabilities to cope with a potential
PDC_INVALID_ARG return as the firmware manual instructs, by assuming
32-bit only. This may be the wrong place for it.

I made up user-visible capability names by total fiat and for the moment
ignored the other bits that may appear in the capabilities word.

I have no PA-RISC machine myself to test on, and no PA experience
either, so I rather hope that somebody will kind-heartedly take this and
fix it up if needed. I ran it past Dann Frazier on IRC and he said
"looks good to me", but I think without testing.

Also, this is against the Ubuntu 2.6.28 kernel tree since that's what I
had handy and I was a bit tight on disk space to slurp down another
tree. Sorry if it's skewed in any relevant way; I'll be happy to adjust
if necessary.

Thanks in advance!

Signed-off-by: Colin Watson <cjwatson@canonical.com>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-03-31 02:51:33 +00:00
..
configs parisc: update defconfigs 2009-03-13 01:33:34 -04:00
hpux parisc: remove unused local out_putf label 2009-03-13 01:17:59 -04:00
include/asm parisc: expose 32/64-bit capabilities in cpuinfo 2009-03-31 02:51:33 +00:00
kernel parisc: expose 32/64-bit capabilities in cpuinfo 2009-03-31 02:51:33 +00:00
lib parisc: lib/: make code static 2009-01-05 18:15:24 +00:00
math-emu kbuild: fix up CFLAGS usage 2007-10-14 21:49:42 +02:00
mm parisc: fix usage of 32bit PTE page table entries on 32bit kernels 2009-03-31 02:51:33 +00:00
oprofile oprofile: more whitespace fixes 2008-10-15 20:55:51 +02:00
defpalo.conf Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
install.sh Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Kconfig cpumask: centralize cpu_online_map and cpu_possible_map 2008-12-13 21:19:41 +10:30
Kconfig.debug alpha/parisc: remove config variable DEBUG_RWLOCK 2008-02-06 10:41:03 -08:00
Makefile parisc: quiet palo not-found message from "which" 2009-01-05 19:10:34 +00:00
nm Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00