Author: marius
Date: Sat Jan 28 23:17:58 2012
New Revision: 230671
URL: http://svn.freebsd.org/changeset/base/230671
Log:
MFC: r225888
Add a comment about why contrary to what once would think running all of
userland with total store order actually is appropriate.
Modified:
stable/9/sys/sparc64/sparc64/machdep.c
Directory Properties:
stable/9/sys/ (props changed)
stable/9/sys/amd64/include/xen/ (props changed)
stable/9/sys/boot/ (props changed)
stable/9/sys/boot/i386/efi/ (props changed)
stable/9/sys/boot/ia64/efi/ (props changed)
stable/9/sys/boot/ia64/ski/ (props changed)
stable/9/sys/boot/powerpc/boot1.chrp/ (props changed)
stable/9/sys/boot/powerpc/ofw/ (props changed)
stable/9/sys/cddl/contrib/opensolaris/ (props changed)
stable/9/sys/conf/ (props changed)
stable/9/sys/contrib/dev/acpica/ (props changed)
stable/9/sys/contrib/octeon-sdk/ (props changed)
stable/9/sys/contrib/pf/ (props changed)
stable/9/sys/contrib/x86emu/ (props changed)
Modified: stable/9/sys/sparc64/sparc64/machdep.c
==============================================================================
--- stable/9/sys/sparc64/sparc64/machdep.c Sat Jan 28 23:16:49 2012
(r230670)
+++ stable/9/sys/sparc64/sparc64/machdep.c Sat Jan 28 23:17:58 2012
(r230671)
@@ -1015,6 +1015,10 @@ exec_setregs(struct thread *td, struct i
tf->tf_out[6] = sp - SPOFF - sizeof(struct frame);
tf->tf_tnpc = imgp->entry_addr + 4;
tf->tf_tpc = imgp->entry_addr;
+ /*
+ * While we could adhere to the memory model indicated in the ELF
+ * header, it turns out that just always using TSO performs best.
+ */
tf->tf_tstate = TSTATE_IE | TSTATE_PEF | TSTATE_MM_TSO;
td->td_retval[0] = tf->tf_out[0];
_______________________________________________
[email protected] mailing list
http://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "[email protected]"
