Date: Sat, 28 Jan 2012 23:17:58 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r230671 - stable/9/sys/sparc64/sparc64 Message-ID: <201201282317.q0SNHwP7003512@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
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];
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201201282317.q0SNHwP7003512>