linux.git/arch/powerpc/kernel/setup_64.c, branch v2.6.24

[POWERPC] Fix cache line vs. block size confusion

2007-11-08T03:15:30+00:00

We had an historical confusion in the kernel between cache line
and cache block size. The former is an implementation detail of
the L1 cache which can be useful for performance optimisations,
the later is the actual size on which the cache control
instructions operate, which can be different.

For some reason, we had a weird hack reading the right property
on powermac and the wrong one on any other 64 bits (32 bits is
unaffected as it only uses the cputable for cache block size
infos at this stage).

This fixes the booting-without-of.txt documentation to mention
the right properties, and fixes the 64 bits initialization code
to look for the block size first, with a fallback to the line
size if the property is missing.

Signed-off-by: Benjamin Herrenschmidt 
Signed-off-by: Paul Mackerras

[POWERPC] Quieten cache information at boot

2007-10-17T12:30:09+00:00

After 6 years the ppc64 kernel still thinks its important to tell me my
cache line size is 0x80 bytes. I think most people who care know that by
now. The rest probably cant even understand the hex output.

Since we might have misconfigured firmware or cpus that have a linesize
that isnt 128 bytes, I still print it out for those cases. If people
would prefer to remove it completely, lets do it.

Also for lpar remove the htab_address printout since its not used.

Anton
ppc64 boot log usability expert

Signed-off-by: Anton Blanchard 
Signed-off-by: Paul Mackerras

Convert cpu_sibling_map to be a per cpu variable

2007-10-16T16:42:50+00:00

Convert cpu_sibling_map from a static array sized by NR_CPUS to a per_cpu
variable.  This saves sizeof(cpumask_t) * NR unused cpus.  Access is mostly
from startup and CPU HOTPLUG functions.

Signed-off-by: Mike Travis 
Cc: Andi Kleen 
Cc: Christoph Lameter 
Cc: "Siddha, Suresh B" 
Cc: "David S. Miller" 
Cc: Paul Mackerras 
Cc: Benjamin Herrenschmidt 
Cc: "Luck, Tony" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[POWERPC] Only call ppc_md.setup_arch() if it is provided

2007-10-11T10:39:36+00:00

This allows platforms which don't have anything to do at setup_arch time
(like a bunch of the 4xx platforms) to eliminate an empty setup_arch hook.

Signed-off-by: Grant Likely 
Signed-off-by: Paul Mackerras

[POWERPC] setup_64.c and prom.c comment cleanup

2007-09-13T15:33:24+00:00

Grammatical corrections to comments.

Signed-off-by: Linas Vepstas 
Signed-off-by: Paul Mackerras

Revert "[POWERPC] Do firmware feature fixups after features are initialised"

2007-07-18T17:17:39+00:00

This reverts commit 5a26f6bbb767d7ad23311a1e81cfdd2bebefb855.

The original patch causes boot failures when built with ppc64_defconfig.  The
quickest fix is to revert it while alterates are investigated.

Signed-off-by: Tony Breeds 
Signed-off-by: Linus Torvalds

[POWERPC] Do firmware feature fixups after features are initialised

2007-06-25T07:03:26+00:00

On pSeries the firmware features are not setup until ppc_md.init_early,
so we can't do the firmware feature sections fixups till after this.

Currently firmware feature sections is only used on iSeries which inits
the firmware features much earlier.  This is a bug in waiting on
pSeries.

Signed-off-by: Michael Neuling 
Signed-off-by: Paul Mackerras

[PATCH] x86: Allow percpu variables to be page-aligned

2007-05-02T17:27:12+00:00

Let's allow page-alignment in general for per-cpu data (wanted by Xen, and
Ingo suggested KVM as well).

Because larger alignments can use more room, we increase the max per-cpu
memory to 64k rather than 32k: it's getting a little tight.

Signed-off-by: Rusty Russell 
Signed-off-by: Jeremy Fitzhardinge 
Signed-off-by: Andi Kleen 
Acked-by: Ingo Molnar 
Cc: Andi Kleen 
Signed-off-by: Andrew Morton

[POWERPC] Rename get_property to of_get_property: arch/powerpc

2007-04-12T17:55:19+00:00

Signed-off-by: Stephen Rothwell 
Acked-by: Benjamin Herrenschmidt 
Signed-off-by: Paul Mackerras

[POWERPC] Remove unused inclusion of linux/ide.h

2007-04-12T17:55:14+00:00

Remove unneeded inclusion of linux/ide.h
It does not compile with CONFIG_BLOCK=n.

Remove asm/ide.h from ksyms file, it gets included earlier via
linux/ide.h.

Compile tested with all defconfig files.

Signed-off-by: Olaf Hering 
Signed-off-by: Paul Mackerras