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(UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 70e1fb47-1155-421d-87fc-2e58f638b6e0 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: WYFKcozTH7JONYbSIZVhahHHli7O8EssjO5VKEctKpAYCIQsGDsRZM9WDCtZbnMYGbbvVaK8+na/t+ycWYUGOA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR18MB4092 X-Proofpoint-ORIG-GUID: vkTnazj38sH5e-FZJpFg4muxl37CSc2m X-Proofpoint-GUID: vkTnazj38sH5e-FZJpFg4muxl37CSc2m X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-03-15_04,2023-03-15_01,2023-02-09_01 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org > -----Original Message----- > From: Ruifeng Wang > Sent: 15 March 2023 15:32 > To: Srikanth Yalavarthi > Cc: dev@dpdk.org; Shivah Shankar Shankar Narayan Rao > ; david.marchand@redhat.com; nd > > Subject: [EXT] RE: [PATCH v2 1/1] mldev: split bfloat16 routines to separ= ate > files >=20 > External Email >=20 > ---------------------------------------------------------------------- > > -----Original Message----- > > From: Srikanth Yalavarthi > > Sent: Monday, March 13, 2023 8:03 PM > > To: Srikanth Yalavarthi ; Ruifeng Wang > > > > Cc: dev@dpdk.org; sshankarnara@marvell.com; > david.marchand@redhat.com > > Subject: [PATCH v2 1/1] mldev: split bfloat16 routines to separate > > files > > > > Since bfloat16 intrinsics are not supported on all ARM platforms that > > support NEON, > > bfloat16 routines are moved to separate files. > > This would enable using scalar implementation for bfloat16 on unsupport= ed > ARM platforms. > > > > Bugzilla ID: 1179 > > Fixes: fc54766b1612 ("mldev: add Arm NEON type conversion") > > > > Signed-off-by: Srikanth Yalavarthi > > --- > > Depends-on: patch-120653 ("mldev: remove weak symbols use in type > > conversions") > > Depends-on: patch-125035 ("mldev: fix identical code in conditional > > branches") > > > > lib/mldev/meson.build | 11 +- > > lib/mldev/mldev_utils_neon.c | 142 +------------ > > lib/mldev/mldev_utils_neon_bfloat16.c | 154 ++++++++++++++ > > lib/mldev/mldev_utils_scalar.c | 262 +----------------------- > > lib/mldev/mldev_utils_scalar.h | 80 ++++++++ > > lib/mldev/mldev_utils_scalar_bfloat16.c | 197 ++++++++++++++++++ > > 6 files changed, 445 insertions(+), 401 deletions(-) create mode > > 100644 lib/mldev/mldev_utils_neon_bfloat16.c > > create mode 100644 lib/mldev/mldev_utils_scalar.h create mode 100644 > > lib/mldev/mldev_utils_scalar_bfloat16.c > > > > diff --git a/lib/mldev/meson.build b/lib/mldev/meson.build index > > c9db42257b..5769b0640a > > 100644 > > --- a/lib/mldev/meson.build > > +++ b/lib/mldev/meson.build > > @@ -7,12 +7,21 @@ sources =3D files( > > 'mldev_utils.c', > > ) > > > > -if dpdk_conf.has('RTE_ARCH_ARM64') > > +if (dpdk_conf.has('RTE_ARCH_ARM64') and > > + cc.get_define('__ARM_NEON', args: machine_args) !=3D '') >=20 > I found in ACLE document that "__ARM_NEON" is always set to 1 for > AArch64". > So this line of check is redundant? Checking for __ARM_NEON should be enough. We can drop the dpdk_conf.has('RTE_ARCH_ARM64') check. I will test the builds and submit a revised patch. >=20 > > sources +=3D files('mldev_utils_neon.c') else > > sources +=3D files('mldev_utils_scalar.c') endif > > > > +if (dpdk_conf.has('RTE_ARCH_ARM64') and > > + cc.get_define('__ARM_NEON', args: machine_args) !=3D '' and >=20 > Same here. >=20 > > + cc.get_define('__ARM_FEATURE_BF16', args: machine_args) !=3D '') > > + sources +=3D files('mldev_utils_neon_bfloat16.c') > > +else > > + sources +=3D files('mldev_utils_scalar_bfloat16.c') > > +endif > > + > > headers =3D files( > > 'rte_mldev.h', > > ) >