From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?Q?Felix_K=c3=bchling?= Subject: Re: PCIe3 atomics requirement for amdkfd Date: Sun, 24 Dec 2017 11:07:27 +0100 Message-ID: References: <3f7e6fed-8668-b469-8813-e6677cb980ca@gmail.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0656107514==" Return-path: In-Reply-To: List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "amd-gfx" To: Alexander Kjeldaas Cc: Felix Kuehling , amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, tstellar-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============0656107514== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="gqh4GOktTMoahDecehV4Ud4lrf1u1a7uf" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --gqh4GOktTMoahDecehV4Ud4lrf1u1a7uf Content-Type: multipart/mixed; boundary="qfAjN5osmoaLe9rn2dE4pwG8fUoI485Vo"; protected-headers="v1" From: =?UTF-8?Q?Felix_K=c3=bchling?= To: Alexander Kjeldaas Cc: tstellar-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, Felix Kuehling Message-ID: Subject: Re: PCIe3 atomics requirement for amdkfd References: <3f7e6fed-8668-b469-8813-e6677cb980ca-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> In-Reply-To: --qfAjN5osmoaLe9rn2dE4pwG8fUoI485Vo Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Content-Language: en-GB Am 23.12.2017 um 17:26 schrieb Alexander Kjeldaas: > =C2=A0Can the atomic ops work on the modified risers used for mining? If the PCI bridge on the riser supports PCIe 3 atomic routing, then yes. Regards, =C2=A0 Felix > > On Dec 23, 2017 16:41, "Felix K=C3=BChling" > wrote: > > As I understand it, it would require changes in the ROCr Runtime > and in > the firmware (MEC microcode). It also changes the programming > model, so > it may affect certain applications or higher level language runtime= s > that rely on atomic operations. > > Regards, > =C2=A0 Felix > > > Am 19.12.2017 um 16:04 schrieb Tom Stellard: > > Hi, > > > > How hard of a requirement is PCIe3 atomics for dGPUs with the amd= kfd > > kernel driver?=C2=A0 Is it possible to make modifications to the > runtime/kernel > > driver to drop this requirement? > > > > -Tom > > _______________________________________________ > > amd-gfx mailing list > > amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org > > https://lists.freedesktop.org/mailman/listinfo/amd-gfx > > > > > _______________________________________________ > amd-gfx mailing list > amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org > https://lists.freedesktop.org/mailman/listinfo/amd-gfx > > --qfAjN5osmoaLe9rn2dE4pwG8fUoI485Vo-- --gqh4GOktTMoahDecehV4Ud4lrf1u1a7uf Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iF4EAREIAAYFAlo/fG0ACgkQ1hkrDAUMk3YNbgD/QrOLLppJpWp22zs0RenBwO14 H6sRy92jYvKJHDft3ywA/3+QRov8sKN9eglOmDSx5KbxhvB7KLQpkhl8495vpkkf =lZrY -----END PGP SIGNATURE----- --gqh4GOktTMoahDecehV4Ud4lrf1u1a7uf-- --===============0656107514== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KYW1kLWdmeCBt YWlsaW5nIGxpc3QKYW1kLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5m cmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9hbWQtZ2Z4Cg== --===============0656107514==--