From: "Luck, Tony" <tony.luck@intel.com>
To: Arnd Bergmann <arnd@arndb.de>, Dave Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>,
Linus Walleij <linus.walleij@linaro.org>,
Greg KH <greg@kroah.com>, Leon Romanovsky <leon@kernel.org>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Thomas Gleixner <tglx@linutronix.de>,
Josh Triplett <josh@joshtriplett.org>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Jonathan Corbet <corbet@lwn.net>,
"ksummit@lists.linux.dev" <ksummit@lists.linux.dev>,
"dev@tvm.apache.org" <dev@tvm.apache.org>
Subject: RE: [MAINTAINER SUMMIT] User-space requirements for accelerator drivers
Date: Tue, 14 Sep 2021 15:43:32 +0000 [thread overview]
Message-ID: <e2b3df421b2e4104a7581314520ccb9e@intel.com> (raw)
In-Reply-To: <CAK8P3a2rATGsoQWGMESMWChQ317YKpryyVTwxkU8J1sUajxf-w@mail.gmail.com>
> d) device has full preempt on all hw blocks, is fully coherent, can
> trigger paging sanely, userspace can submit directly (pipe dream).
Not a pipe dream. Coming soon to a server near you. The Intel "ENQCMD"
instruction can be used from userspace to submit a descriptor to an
accelerator device. ENQCMD picks up the PASID from an MSR during
submission, so the device can ask the iommu to translate virtual addresses
based on the address space of the process that submitted the descriptor.
-Tony
next prev parent reply other threads:[~2021-09-14 15:44 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-10 21:00 [MAINTAINER SUMMIT] User-space requirements for accelerator drivers Jonathan Corbet
2021-09-10 21:32 ` Josh Triplett
2021-09-13 13:50 ` Christian Brauner
2021-09-13 13:57 ` Daniel Vetter
2021-09-14 2:07 ` Laurent Pinchart
2021-09-14 14:40 ` Jani Nikula
2021-09-14 14:45 ` Geert Uytterhoeven
2021-09-14 14:59 ` Jani Nikula
2021-09-14 15:10 ` Geert Uytterhoeven
2021-09-10 21:51 ` James Bottomley
2021-09-10 21:59 ` Alexandre Belloni
2021-09-10 22:35 ` James Bottomley
2021-09-11 14:51 ` Jonathan Corbet
2021-09-11 15:24 ` James Bottomley
2021-09-11 21:52 ` Laurent Pinchart
2021-09-14 13:22 ` Johannes Berg
2021-09-11 0:08 ` Laurent Pinchart
2021-09-10 22:52 ` Mauro Carvalho Chehab
2021-09-10 23:45 ` Josh Triplett
2021-09-10 23:48 ` Dave Hansen
2021-09-11 0:13 ` Laurent Pinchart
2021-09-10 23:55 ` Thomas Gleixner
2021-09-11 0:20 ` Laurent Pinchart
2021-09-11 14:20 ` Steven Rostedt
2021-09-11 22:08 ` Laurent Pinchart
2021-09-11 22:42 ` Steven Rostedt
2021-09-11 23:10 ` Laurent Pinchart
2021-09-13 11:10 ` Mark Brown
2021-09-11 22:51 ` Mauro Carvalho Chehab
2021-09-11 23:22 ` Mauro Carvalho Chehab
2021-09-11 10:31 ` Leon Romanovsky
2021-09-11 11:41 ` Laurent Pinchart
2021-09-11 12:04 ` Leon Romanovsky
2021-09-11 22:04 ` Laurent Pinchart
2021-09-12 4:27 ` Leon Romanovsky
2021-09-12 7:26 ` Greg KH
2021-09-12 8:29 ` Leon Romanovsky
2021-09-12 13:25 ` Greg KH
2021-09-12 14:15 ` Leon Romanovsky
2021-09-12 14:34 ` Greg KH
2021-09-12 16:41 ` Laurent Pinchart
2021-09-12 20:35 ` Dave Airlie
2021-09-12 20:41 ` Dave Airlie
2021-09-12 20:49 ` Daniel Vetter
2021-09-12 21:12 ` Dave Airlie
2021-09-12 22:51 ` Linus Walleij
2021-09-12 23:15 ` Dave Airlie
2021-09-13 13:20 ` Arnd Bergmann
2021-09-13 13:54 ` Daniel Vetter
2021-09-13 22:04 ` Arnd Bergmann
2021-09-13 23:33 ` Dave Airlie
2021-09-14 9:08 ` Arnd Bergmann
2021-09-14 9:23 ` Daniel Vetter
2021-09-14 10:47 ` Laurent Pinchart
2021-09-14 12:58 ` Arnd Bergmann
2021-09-14 19:45 ` Daniel Vetter
2021-09-14 15:43 ` Luck, Tony [this message]
2021-09-13 14:52 ` James Bottomley
2021-09-14 13:07 ` Linus Walleij
2021-09-13 14:03 ` Mark Brown
2021-09-12 15:55 ` Laurent Pinchart
2021-09-12 16:43 ` James Bottomley
2021-09-12 16:58 ` Laurent Pinchart
2021-09-12 17:08 ` James Bottomley
2021-09-12 19:52 ` Dave Airlie
2021-09-12 7:46 ` Mauro Carvalho Chehab
2021-09-12 8:00 ` Leon Romanovsky
2021-09-12 14:53 ` Laurent Pinchart
2021-09-12 15:41 ` Mauro Carvalho Chehab
2021-09-10 23:46 ` Laurent Pinchart
2021-09-11 0:38 ` Mauro Carvalho Chehab
2021-09-11 9:27 ` Laurent Pinchart
2021-09-11 22:33 ` Mauro Carvalho Chehab
2021-09-13 12:04 ` Mark Brown
2021-09-12 19:13 ` Dave Airlie
2021-09-12 19:48 ` Laurent Pinchart
2021-09-13 2:26 ` Dave Airlie
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