Re: [PATCH] riscv/barrier: Define __smp_{store_release,load_acquire}

2018-02-27 Thread Andrea Parri
On Tue, Feb 27, 2018 at 02:20:37PM -0800, Daniel Lustig wrote: > On 2/27/2018 10:21 AM, Palmer Dabbelt wrote: > > On Mon, 26 Feb 2018 18:24:11 PST (-0800), parri.and...@gmail.com wrote: > >> Introduce __smp_{store_release,load_acquire}, and rely on the generic > >> definitions for smp_{store_releas

Re: [PATCH] riscv/barrier: Define __smp_{store_release,load_acquire}

2018-02-27 Thread Daniel Lustig
On 2/27/2018 10:21 AM, Palmer Dabbelt wrote: > On Mon, 26 Feb 2018 18:24:11 PST (-0800), parri.and...@gmail.com wrote: >> Introduce __smp_{store_release,load_acquire}, and rely on the generic >> definitions for smp_{store_release,load_acquire}. This avoids the use >> of full ("rw,rw") fences on SMP

Re: [PATCH] riscv/barrier: Define __smp_{store_release,load_acquire}

2018-02-27 Thread Palmer Dabbelt
On Mon, 26 Feb 2018 18:24:11 PST (-0800), parri.and...@gmail.com wrote: Introduce __smp_{store_release,load_acquire}, and rely on the generic definitions for smp_{store_release,load_acquire}. This avoids the use of full ("rw,rw") fences on SMP. Signed-off-by: Andrea Parri --- arch/riscv/includ

[PATCH] riscv/barrier: Define __smp_{store_release,load_acquire}

2018-02-26 Thread Andrea Parri
Introduce __smp_{store_release,load_acquire}, and rely on the generic definitions for smp_{store_release,load_acquire}. This avoids the use of full ("rw,rw") fences on SMP. Signed-off-by: Andrea Parri --- arch/riscv/include/asm/barrier.h | 15 +++ 1 file changed, 15 insertions(+) di