MI changes:

 - provide an interface (macros) to the page coloring part of the VM system,
   this allows to try different coloring algorithms without the need to
   touch every file [1]
 - make the page queue tuning values readable: sysctl vm.stats.pagequeue
 - autotuning of the page coloring values based upon the cache size instead
   of options in the kernel config (disabling of the page coloring as a
   kernel option is still possible)

MD changes:
 - detection of the cache size: only IA32 and AMD64 (untested) contains
   cache size detection code, every other arch just comes with a dummy
   function (this results in the use of default values like it was the
   case without the autotuning of the page coloring)
 - print some more info on Intel CPU's (like we do on AMD and Transmeta
   CPU's)

Note to AMD owners (IA32 and AMD64): please run "sysctl vm.stats.pagequeue"
and report if the cache* values are zero (= bug in the cache detection code)
or not.

Based upon work by:	Chad David <davidc@acns.ab.ca> [1]
Reviewed by:		alc, arch (in 2004)
Discussed with:		alc, Chad David, arch (in 2004)

2 files changed, 16 insertions, 0 deletions

diff --git a/sys/powerpc/aim/machdep.c b/sys/powerpc/aim/machdep.c
index e7d28b6..4d337b0 100644
--- a/sys/powerpc/aim/machdep.c
+++ b/sys/powerpc/aim/machdep.c
@@ -170,6 +170,14 @@ struct bat	battable[16];
 
 struct kva_md_info kmi;
 
+void setPQL2(int *const size, int *const ways);
+
+void
+setPQL2(int *const size, int *const ways)
+{
+	return;
+}
+
 static void
 powerpc_ofw_shutdown(void *junk, int howto)
 {
diff --git a/sys/powerpc/powerpc/machdep.c b/sys/powerpc/powerpc/machdep.c
index e7d28b6..4d337b0 100644
--- a/sys/powerpc/powerpc/machdep.c
+++ b/sys/powerpc/powerpc/machdep.c
@@ -170,6 +170,14 @@ struct bat	battable[16];
 
 struct kva_md_info kmi;
 
+void setPQL2(int *const size, int *const ways);
+
+void
+setPQL2(int *const size, int *const ways)
+{
+	return;
+}
+
 static void
 powerpc_ofw_shutdown(void *junk, int howto)
 {