PERFORCE change 84076 for review

[John Baldwin]

http://perforce.freebsd.org/chv.cgi?CH=84076

Change 84076 by jhb at jhb_slimer on 2005/09/21 21:01:48

	Update.

Affected files ...

.. //depot/projects/smpng/sys/notes#57 edit

Differences ...

==== //depot/projects/smpng/sys/notes#57 (text+ko) ====

@@ -9,36 +9,31 @@
   for inline asm stuff.  For pc98 I tried to update the clobbers to be
   more realistic since they call functions.  However, these clobber updates
   need to be verified against the actual pc98 code.
-  - Untested
-  + Oops, '+' is invalid for memory operands it turns out, so revisit the
-    whole tree to really fix this.  Also, fixup atomic ops so that they
-    treat the memory pointed to as an output and don't all clobber "memory",
-    instead, just acquire variants clobber "memory".
-  - Put off the relaxing of memory clobbers to just acquire variants until
-    later
-    - alpha
-    - amd64
-      - why clobber memory in disable_intr()?
-      - eventually we should not clobber all memory for bus_space, but just
-        the memory we actually touch
-    - arm
-      - needs real acq variants to get "memory" clobber, then __swp() can stop
-        clobbering "memory"
-    - dev
-      - drm clobbers memory for write barriers
-      - drm and sym should use bus_space for barriers
-    - gnu
-      - contrib code
-    - ia64
-    - i386
-      - why clobber memory in disable_intr()?
-    - pc98
-    - powerpc
-      - not sure powerpc_mb() should clobber memory
-    - sparc64
-    - sys
-  + start over saving current state in the ktrace branch so I can break this up
-  - see what's left of the diff after these
+  - Moved to the jhb_ktrace branch for now.  Also, haven't removed the
+    "cc" clobbers yet.
+- Fixup atomic ops so that they treat the memory pointed to as an output and
+  don't all clobber "memory", instead, just acquire variants clobber "memory".
+  - alpha
+  - amd64
+    - why clobber memory in disable_intr()?
+    - eventually we should not clobber all memory for bus_space, but just
+      the memory we actually touch
+  - arm
+    - needs real acq variants to get "memory" clobber, then __swp() can stop
+      clobbering "memory"
+  - dev
+    - drm clobbers memory for write barriers
+    - drm and sym should use bus_space for barriers
+  - gnu
+    - contrib code
+  - ia64
+  - i386
+    - why clobber memory in disable_intr()?
+  - pc98
+  - powerpc
+    - not sure powerpc_mb() should clobber memory
+  - sparc64
+  - sys
 - Fixup td_ucred of thread doing execve() to re-sync with process ucred
   after single threading during an exec.
   - Untested