From: "joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org" <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
To: Olav Haugan <ohaugan-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
Cc: "laurent.pinchart+renesas-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org"
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Subject: Re: [PATCH v5 1/1] iommu-api: Add map_sg/unmap_sg functions
Date: Mon, 18 Aug 2014 16:07:30 +0200 [thread overview]
Message-ID: <20140818140730.GC9809@8bytes.org> (raw)
In-Reply-To: <53EA472B.3020900-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
On Tue, Aug 12, 2014 at 09:56:11AM -0700, Olav Haugan wrote:
> On 8/12/2014 3:48 AM, Rob Clark wrote:
> > iirc, one plan for 'flags' was some sort of DONT_FLUSH_TLB flag for
> > drivers which wanted to map/unmap N buffers with a single flush at the
> > end. There might have been some other usages envisioned.
>
> Yes, that was the original intent of the flags for now. I am sure we can
> find other uses for this in the future.
Do you have anything else in mind already besides the DONT_FLUSH_TLB
flag?
How is the IOTLB supposed to be flushed when this flag is used?
Joerg
next prev parent reply other threads:[~2014-08-18 14:07 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-11 22:45 [PATCH v5 0/1] Add iommu map_sg/unmap_sg API Olav Haugan
2014-08-11 22:45 ` [PATCH v5 1/1] iommu-api: Add map_sg/unmap_sg functions Olav Haugan
[not found] ` <1407797150-515-2-git-send-email-ohaugan-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2014-08-12 1:35 ` Konrad Rzeszutek Wilk
[not found] ` <20140812013559.GA25121-0iZWjJA6G8GSPmnEAIUT9EEOCMrvLtNR@public.gmane.org>
2014-08-12 16:53 ` Olav Haugan
2014-08-12 1:51 ` Hiroshi Doyu
2014-08-12 10:48 ` Rob Clark
2014-08-12 16:56 ` Olav Haugan
[not found] ` <53EA472B.3020900-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2014-08-18 14:07 ` joro-zLv9SwRftAIdnm+yROfE0A [this message]
[not found] ` <20140818140730.GC9809-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2014-08-18 18:32 ` Rob Clark
[not found] ` <CAF6AEGtGmAQjMc5W5a6x5QiyUc8v0XHcsNAFe65Znc=DDKPS+w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-08-18 20:48 ` Olav Haugan
[not found] ` <53F266AE.40303-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2014-08-18 21:26 ` joro-zLv9SwRftAIdnm+yROfE0A
[not found] ` <20140818212627.GI9809-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2014-08-18 21:32 ` Olav Haugan
2014-08-12 16:55 ` Laurent Pinchart
2014-08-12 17:10 ` Olav Haugan
2014-08-18 21:55 ` Joerg Roedel
2014-08-18 22:47 ` Olav Haugan
[not found] ` <53F2829C.2040809-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2014-08-19 11:59 ` Joerg Roedel
[not found] ` <20140819115954.GC16329-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2014-08-19 16:11 ` Laurent Pinchart
2014-08-19 18:40 ` Olav Haugan
[not found] ` <53F39A18.70409-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2014-08-19 20:52 ` Laurent Pinchart
2014-08-20 5:21 ` Thierry Reding
2014-08-20 13:02 ` Konrad Rzeszutek Wilk
[not found] ` <20140820130250.GA3120-0iZWjJA6G8GSPmnEAIUT9EEOCMrvLtNR@public.gmane.org>
2014-08-20 14:15 ` Laurent Pinchart
2014-08-19 18:37 ` Olav Haugan
2014-09-25 17:01 ` Joerg Roedel
[not found] ` <20140925170108.GE8306-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2014-10-06 19:02 ` Olav Haugan
2014-10-15 9:16 ` Thierry Reding
2014-10-16 17:23 ` Olav Haugan
2014-10-17 9:09 ` Joerg Roedel
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