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Re: [Xen-devel] [v3,11/41] mips: reuse asm-generic/barrier.h
- To: "Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx>
- From: Will Deacon <will.deacon@xxxxxxx>
- Date: Wed, 27 Jan 2016 10:23:14 +0000
- Cc: linux-mips@xxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, "Michael S. Tsirkin" <mst@xxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx, "H. Peter Anvin" <hpa@xxxxxxxxx>, sparclinux@xxxxxxxxxxxxxxx, Ingo Molnar <mingo@xxxxxxxxxx>, linux-arch@xxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx>, user-mode-linux-devel@xxxxxxxxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, Michael Ellerman <mpe@xxxxxxxxxxxxxx>, x86@xxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, Ingo Molnar <mingo@xxxxxxx>, linux-xtensa@xxxxxxxxxxxxxxxx, james.hogan@xxxxxxxxxx, Arnd Bergmann <arnd@xxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>, adi-buildroot-devel@xxxxxxxxxxxxxxxxxxxxx, Leonid Yegoshin <Leonid.Yegoshin@xxxxxxxxxx>, ddaney.cavm@xxxxxxxxx, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, linux-metag@xxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, Ralf Baechle <ralf@xxxxxxxxxxxxxx>, Joe Perches <joe@xxxxxxxxxxx>, linuxppc-dev@xxxxxxxxxxxxxxxx, David Miller <davem@xxxxxxxxxxxxx>
- Delivery-date: Wed, 27 Jan 2016 10:23:28 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
On Tue, Jan 26, 2016 at 03:37:33PM -0800, Paul E. McKenney wrote:
> On Tue, Jan 26, 2016 at 12:10:10PM +0000, Will Deacon wrote:
> > On Mon, Jan 25, 2016 at 05:06:46PM -0800, Paul E. McKenney wrote:
> > > PPC WRCnf+addrs
> > > ""
> > > {
> > > 0:r2=x; 0:r3=y;
> > > 1:r2=x; 1:r3=y;
> > > 2:r2=x; 2:r3=y;
> > > c=a; d=b; x=c; y=d;
> > > }
> > > P0 | P1 | P2 ;
> > > stw r3,0(r2) | lwz r8,0(r2) | lwz r8,0(r3) ;
> > > | stw r2,0(r8) | lwz r9,0(r8) ;
> > > exists
> > > (1:r8=y /\ 2:r8=x /\ 2:r9=c)
> >
> > Agreed.
>
> OK, thank you! Would you agree that it would be good to replace the
> current xor-based fake-dependency litmus tests with tests having real
> dependencies?
Yes, because it would look a lot more like real (kernel) code.
Will
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- References:
- Re: [Xen-devel] [v3,11/41] mips: reuse asm-generic/barrier.h
- Re: [Xen-devel] [v3,11/41] mips: reuse asm-generic/barrier.h
- Re: [Xen-devel] [v3,11/41] mips: reuse asm-generic/barrier.h
- Re: [Xen-devel] [v3,11/41] mips: reuse asm-generic/barrier.h
- Re: [Xen-devel] [v3,11/41] mips: reuse asm-generic/barrier.h
- Re: [Xen-devel] [v3,11/41] mips: reuse asm-generic/barrier.h
- Re: [Xen-devel] [v3,11/41] mips: reuse asm-generic/barrier.h
- Re: [Xen-devel] [v3,11/41] mips: reuse asm-generic/barrier.h
- Re: [Xen-devel] [v3,11/41] mips: reuse asm-generic/barrier.h
- Re: [Xen-devel] [v3,11/41] mips: reuse asm-generic/barrier.h
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