From: Will Deacon <will-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Vivek Gautam <vivek.gautam-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
Cc: "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
linux-arm-msm
<linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>,
open list <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Bjorn Andersson
<bjorn.andersson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
David Brown <david.brown-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
"list-Y9sIeH5OGRo@public.gmane.org:IOMMU DRIVERS
<iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>,
Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>,
"
<iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>,
robh+dt <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Andy Gross <agross-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>
Subject: Re: [PATCH v3 3/4] iommu/arm-smmu: Add support to handle Qcom's wait-for-safe logic
Date: Tue, 25 Jun 2019 14:39:25 +0100 [thread overview]
Message-ID: <20190625133924.fqq3y7p3i3fqem5p@willie-the-truck> (raw)
In-Reply-To: <CAFp+6iF0TQtAy2JFXk6zjX5GpjeLFesqPZV6ezbDXmc85yvMEA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
On Tue, Jun 25, 2019 at 12:34:56PM +0530, Vivek Gautam wrote:
> On Mon, Jun 24, 2019 at 10:33 PM Will Deacon <will-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> wrote:
> > Instead, I think this needs to be part of a separate file that is maintained
> > by you, which follows on from the work that Krishna is doing for nvidia
> > built on top of Robin's prototype patches:
> >
> > http://linux-arm.org/git?p=linux-rm.git;a=shortlog;h=refs/heads/iommu/smmu-impl
>
> Looking at this branch quickly, it seem there can be separate implementation
> level configuration file that can be added.
> But will this also handle separate page table ops when required in future.
Nothing's set in stone, but having the implementation-specific code
constrain the page-table format (especially wrt quirks) sounds reasonable to
me. I'm currently waiting for Krishna to respin the nvidia changes [1] on
top of this so that we can see how well the abstractions are holding up.
I certainly won't merge the stuff until we have a user.
Will
[1] https://lkml.kernel.org/r/1543887414-18209-1-git-send-email-vdumpa-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org
next prev parent reply other threads:[~2019-06-25 13:39 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-12 7:15 [PATCH v3 0/4] Qcom smmu-500 wait-for-safe handling for sdm845 Vivek Gautam
2019-06-12 7:15 ` [PATCH v3 1/4] firmware: qcom_scm-64: Add atomic version of qcom_scm_call Vivek Gautam
2019-06-18 17:55 ` Will Deacon
[not found] ` <20190618175536.GI4270-UDVVEH7NWB15pKCnmE3YQBJ8xKzm50AiAL8bYrjMMd8@public.gmane.org>
2019-06-19 11:34 ` Vivek Gautam
2019-08-05 22:27 ` Bjorn Andersson
2019-08-08 11:35 ` Vivek Gautam
2019-08-08 16:30 ` Will Deacon
2019-06-12 7:15 ` [PATCH v3 2/4] firmware/qcom_scm: Add scm call to handle smmu errata Vivek Gautam
2019-06-12 7:15 ` [PATCH v3 3/4] iommu/arm-smmu: Add support to handle Qcom's wait-for-safe logic Vivek Gautam
[not found] ` <20190612071554.13573-4-vivek.gautam-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2019-06-14 4:05 ` Bjorn Andersson
2019-06-14 9:18 ` Vivek Gautam
2019-06-18 17:52 ` Will Deacon
[not found] ` <20190618175218.GH4270-UDVVEH7NWB15pKCnmE3YQBJ8xKzm50AiAL8bYrjMMd8@public.gmane.org>
2019-06-24 10:28 ` Vivek Gautam
2019-06-24 17:03 ` Will Deacon
2019-06-25 7:04 ` Vivek Gautam
[not found] ` <CAFp+6iF0TQtAy2JFXk6zjX5GpjeLFesqPZV6ezbDXmc85yvMEA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2019-06-25 13:39 ` Will Deacon [this message]
2019-06-26 6:33 ` Vivek Gautam
2019-06-26 14:48 ` Will Deacon
2019-06-27 7:05 ` Vivek Gautam
2019-06-12 7:15 ` [PATCH v3 4/4] arm64: dts/sdm845: Enable FW implemented safe sequence handler on MTP Vivek Gautam
[not found] ` <20190612071554.13573-5-vivek.gautam-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2019-06-14 4:06 ` Bjorn Andersson
2019-06-14 9:01 ` Vivek Gautam
2019-08-05 22:26 ` Bjorn Andersson
2019-08-11 16:08 ` Vivek Gautam
2019-08-11 19:01 ` Bjorn Andersson
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