From: Dmitry Osipenko <digetx@gmail.com>
To: Nicolin Chen <nicoleotsuka@gmail.com>,
Thierry Reding <thierry.reding@gmail.com>
Cc: linux-tegra@vger.kernel.org, iommu@lists.linux-foundation.org,
linux-kernel@vger.kernel.org, krzk@kernel.org,
jonathanh@nvidia.com
Subject: Re: [PATCH 3/5] iommu/tegra-smmu: Use iommu_fwspec in .probe_/.attach_device()
Date: Tue, 29 Sep 2020 07:06:37 +0300 [thread overview]
Message-ID: <2a38018a-3f95-74da-6dc1-270efc26a8fb@gmail.com> (raw)
In-Reply-To: <20200928221829.GB15720@Asurada-Nvidia>
...
>> As I mentioned in another reply, I think tegra_smmu_find() should be all
>> you need in this case.
>
> This function is used by .probe_device() where its dev pointer is
> an SMMU client. IIUC, tegra_smmu_find() needs np pointer of "mc".
> For a PCI device that doesn't have a DT node with iommus property,
> not sure how we can use tegra_smmu_find().
Perhaps you could get np from struct pci_dev.bus?
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next prev parent reply other threads:[~2020-09-29 4:06 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-26 8:07 [PATCH 0/5] iommu/tegra-smmu: Adding PCI support and mappings debugfs node Nicolin Chen
2020-09-26 8:07 ` [PATCH 1/5] iommu/tegra-smmu: Unwrap tegra_smmu_group_get Nicolin Chen
2020-09-28 7:13 ` Thierry Reding
2020-09-28 19:33 ` Nicolin Chen
2020-09-26 8:07 ` [PATCH 2/5] iommu/tegra-smmu: Expend mutex protection range Nicolin Chen
2020-09-26 8:07 ` [PATCH 3/5] iommu/tegra-smmu: Use iommu_fwspec in .probe_/.attach_device() Nicolin Chen
2020-09-26 14:48 ` Dmitry Osipenko
2020-09-26 20:42 ` Nicolin Chen
2020-09-28 7:29 ` Thierry Reding
2020-09-28 7:52 ` Thierry Reding
2020-09-28 22:18 ` Nicolin Chen
2020-09-29 4:06 ` Dmitry Osipenko [this message]
2020-09-29 5:36 ` Nicolin Chen
2020-09-26 8:07 ` [PATCH 4/5] iommu/tegra-smmu: Add PCI support Nicolin Chen
2020-09-26 22:18 ` Dmitry Osipenko
2020-09-28 22:31 ` Nicolin Chen
2020-09-28 7:55 ` Thierry Reding
2020-09-28 22:33 ` Nicolin Chen
2020-09-26 8:07 ` [PATCH 5/5] iommu/tegra-smmu: Add pagetable mappings to debugfs Nicolin Chen
2020-09-26 14:48 ` Dmitry Osipenko
2020-09-26 20:47 ` Nicolin Chen
2020-09-26 21:41 ` Dmitry Osipenko
2020-09-26 21:24 ` Dmitry Osipenko
2020-09-26 21:37 ` Dmitry Osipenko
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