On Wed, Jun 20, 2018 at 11:31:55AM +0800, 陈华才 wrote:
> Loongson-3's Store Fill Buffer is nearly the same as your "Store Buffer",
> and it increases the memory ordering weakness. So, smp_cond_load_acquire()
> only need a __smp_mb() before the loop, not after every READ_ONCE(). In
> other word, the
On Wed, Jun 20, 2018 at 11:31:55AM +0800, 陈华才 wrote:
> Loongson-3's Store Fill Buffer is nearly the same as your "Store Buffer",
> and it increases the memory ordering weakness. So, smp_cond_load_acquire()
> only need a __smp_mb() before the loop, not after every READ_ONCE(). In
> other word, the
On Wed, Jun 20, 2018 at 09:17:16AM +0100, Will Deacon wrote:
> On Wed, Jun 20, 2018 at 11:31:55AM +0800, 陈华才 wrote:
> > Loongson-3's Store Fill Buffer is nearly the same as your "Store Buffer",
> > and it increases the memory ordering weakness. So, smp_cond_load_acquire()
> > only need a
On Wed, Jun 20, 2018 at 09:17:16AM +0100, Will Deacon wrote:
> On Wed, Jun 20, 2018 at 11:31:55AM +0800, 陈华才 wrote:
> > Loongson-3's Store Fill Buffer is nearly the same as your "Store Buffer",
> > and it increases the memory ordering weakness. So, smp_cond_load_acquire()
> > only need a
quot;; "Ralf Baechle";
"James Hogan"; "linux-mips";
"Fuxin Zhang"; "wuzhangjin"; "Huacai
Chen"; "stable"; "Alan
Stern";
"AndreaParri"; "Will
Deacon"; "Boqun Feng"; &qu
quot;; "Ralf Baechle";
"James Hogan"; "linux-mips";
"Fuxin Zhang"; "wuzhangjin"; "Huacai
Chen"; "stable"; "Alan
Stern";
"AndreaParri"; "Will
Deacon"; "Boqun Feng"; &qu
Hi all,
On Tue, Jun 19, 2018 at 09:17:10AM +0200, Peter Zijlstra wrote:
> On Mon, Jun 18, 2018 at 11:51:41AM -0700, Paul Burton wrote:
> > On Fri, Jun 15, 2018 at 02:07:38PM +0800, Huacai Chen wrote:
> > > After commit 7f56b58a92aaf2c ("locking/mcs: Use smp_cond_load_acquire()
> > > in MCS spin
Hi all,
On Tue, Jun 19, 2018 at 09:17:10AM +0200, Peter Zijlstra wrote:
> On Mon, Jun 18, 2018 at 11:51:41AM -0700, Paul Burton wrote:
> > On Fri, Jun 15, 2018 at 02:07:38PM +0800, Huacai Chen wrote:
> > > After commit 7f56b58a92aaf2c ("locking/mcs: Use smp_cond_load_acquire()
> > > in MCS spin
On Tue, Jun 19, 2018 at 02:40:14PM +0800, 陈华才 wrote:
> Hi, Paul,
>
> First of all, could you please check why linux-mips reject e-mails
> from lemote.com? Of course I can send e-mails by gmail, but my gmail
> can't receive e-mails from linux-mips since March, 2018.
Could you please learn to use
On Tue, Jun 19, 2018 at 02:40:14PM +0800, 陈华才 wrote:
> Hi, Paul,
>
> First of all, could you please check why linux-mips reject e-mails
> from lemote.com? Of course I can send e-mails by gmail, but my gmail
> can't receive e-mails from linux-mips since March, 2018.
Could you please learn to use
On Mon, Jun 18, 2018 at 11:51:41AM -0700, Paul Burton wrote:
> Hi Huacai,
>
> On Fri, Jun 15, 2018 at 02:07:38PM +0800, Huacai Chen wrote:
> > After commit 7f56b58a92aaf2c ("locking/mcs: Use smp_cond_load_acquire()
> > in MCS spin loop") Loongson-3 fails to boot. This is because Loongson-3
> >
On Mon, Jun 18, 2018 at 11:51:41AM -0700, Paul Burton wrote:
> Hi Huacai,
>
> On Fri, Jun 15, 2018 at 02:07:38PM +0800, Huacai Chen wrote:
> > After commit 7f56b58a92aaf2c ("locking/mcs: Use smp_cond_load_acquire()
> > in MCS spin loop") Loongson-3 fails to boot. This is because Loongson-3
> >
qun
Feng"; "Nicholas Piggin"; "David
Howells"; "Jade Alglave"; "Luc
Maranget"; "Paul E.
McKenney"; "Akira Yokosawa";
"linux-kernel";
Subject: Re: [PATCH] MIPS: implement smp_cond_load_acquire() for Loongson-3
Hi Huacai,
qun
Feng"; "Nicholas Piggin"; "David
Howells"; "Jade Alglave"; "Luc
Maranget"; "Paul E.
McKenney"; "Akira Yokosawa";
"linux-kernel";
Subject: Re: [PATCH] MIPS: implement smp_cond_load_acquire() for Loongson-3
Hi Huacai,
Hi Huacai,
On Fri, Jun 15, 2018 at 02:07:38PM +0800, Huacai Chen wrote:
> After commit 7f56b58a92aaf2c ("locking/mcs: Use smp_cond_load_acquire()
> in MCS spin loop") Loongson-3 fails to boot. This is because Loongson-3
> has SFB (Store Fill Buffer) and READ_ONCE() may get an old value in a
>
Hi Huacai,
On Fri, Jun 15, 2018 at 02:07:38PM +0800, Huacai Chen wrote:
> After commit 7f56b58a92aaf2c ("locking/mcs: Use smp_cond_load_acquire()
> in MCS spin loop") Loongson-3 fails to boot. This is because Loongson-3
> has SFB (Store Fill Buffer) and READ_ONCE() may get an old value in a
>
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