From: "Jaehyuk Lee" <jhl9105@kaist.ac.kr>
To: intel-gfx@lists.freedesktop.org
Subject: Question about relationship between intel-gfx-SVM and PASID
Date: Mon, 8 May 2017 17:09:39 +0900 (KST) [thread overview]
Message-ID: <59102ae23fda_@_imoxion.com> (raw)
[-- Attachment #1.1: Type: text/plain, Size: 867 bytes --]
Hi, I am a newbie on the intel-gfx and tries to use the shared virtual memory which is mentioned in several intel documents (vt-d and Intel-gfx-prm)supported in the opencl library to share address space betweenCPU and intel integrated GPU.As far as I know, shared virtual memory is supported as a part of intel VT-D extensionwith the help of IOMMU and PASID. Although It seems that intel-gfx repo has the source code related with PASID,the opencl library for intel-gfx (beignet) doesn't use the any functionsrelated with PAISD nor IOMMU.It seems that clSVMAlloc is a opencl function for zero copyfollowing the Intel document,but it doesn't use any functions related with PASID and IOMMU.Is the current intel-gfx supports the virtual address space sharing thorugh the IOMMU and PASID? *I am so sorry If I sent this mail to wrong mailing listBest regardsJaehyuk.
[-- Attachment #1.2: Type: text/html, Size: 7389 bytes --]
[-- Attachment #2: Type: text/plain, Size: 160 bytes --]
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
reply other threads:[~2017-05-08 8:16 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=59102ae23fda_@_imoxion.com \
--to=jhl9105@kaist.ac.kr \
--cc=intel-gfx@lists.freedesktop.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox