-----Original Message----- > Date: Tue, 26 Dec 2017 20:28:23 -0800 > From: Yongseok Koh <[email protected]> > To: [email protected], [email protected], > [email protected], [email protected] > CC: [email protected], Yongseok Koh <[email protected]>, Thomas Speier > <[email protected]> > Subject: [PATCH 1/2] eal/arm64: modify I/O device memory barriers > X-Mailer: git-send-email 2.11.0 > > Instead of using system-wide 'dsb' instruction for IO barriers, 'dmb' is > sufficient and could bring better performance. Using 'dmb' with Outer > Shareable Domain option is also consistent with linux kernel. > > Cc: Thomas Speier <[email protected]> > > Signed-off-by: Yongseok Koh <[email protected]> > Acked-by: Thomas Speier <[email protected]> > Acked-by: Shahaf Shuler <[email protected]>
Acked-by: Jerin Jacob <[email protected]> > --- > lib/librte_eal/common/include/arch/arm/rte_atomic_64.h | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/lib/librte_eal/common/include/arch/arm/rte_atomic_64.h > b/lib/librte_eal/common/include/arch/arm/rte_atomic_64.h > index 0b70d6209..8dcce6054 100644 > --- a/lib/librte_eal/common/include/arch/arm/rte_atomic_64.h > +++ b/lib/librte_eal/common/include/arch/arm/rte_atomic_64.h > @@ -58,11 +58,11 @@ extern "C" { > > #define rte_smp_rmb() dmb(ishld) > > -#define rte_io_mb() rte_mb() > +#define rte_io_mb() dmb(osh) > > -#define rte_io_wmb() rte_wmb() > +#define rte_io_wmb() dmb(oshst) > > -#define rte_io_rmb() rte_rmb() > +#define rte_io_rmb() dmb(oshld) > > #ifdef __cplusplus > } > -- > 2.11.0 >
