From: Joerg Roedel <joro@8bytes.org>
To: Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Kukjin Kim <kgene@kernel.org>,
Krzysztof Kozlowski <krzk@kernel.org>,
David Woodhouse <dwmw2@infradead.org>,
Lu Baolu <baolu.lu@linux.intel.com>,
Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Rob Clark <robdclark@gmail.com>, Heiko Stuebner <heiko@sntech.de>,
Gerald Schaefer <gerald.schaefer@de.ibm.com>,
Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Jean-Philippe Brucker <jean-philippe@linaro.org>
Cc: Daniel Drake <drake@endlessm.com>,
jonathan.derrick@intel.com, iommu@lists.linux-foundation.org,
linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
linux-arm-msm@vger.kernel.org,
linux-mediatek@lists.infradead.org,
linux-rockchip@lists.infradead.org, linux-s390@vger.kernel.org,
linux-tegra@vger.kernel.org,
virtualization@lists.linux-foundation.org,
Joerg Roedel <jroedel@suse.de>
Subject: [PATCH v3 20/34] iommu/virtio: Convert to probe/release_device() call-backs
Date: Wed, 29 Apr 2020 15:36:58 +0200 [thread overview]
Message-ID: <20200429133712.31431-21-joro@8bytes.org> (raw)
In-Reply-To: <20200429133712.31431-1-joro@8bytes.org>
From: Joerg Roedel <jroedel@suse.de>
Convert the VirtIO IOMMU driver to use the probe_device() and
release_device() call-backs of iommu_ops, so that the iommu core code
does the group and sysfs setup.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
drivers/iommu/virtio-iommu.c | 41 +++++++++---------------------------
1 file changed, 10 insertions(+), 31 deletions(-)
diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
index d5cac4f46ca5..bda300c2a438 100644
--- a/drivers/iommu/virtio-iommu.c
+++ b/drivers/iommu/virtio-iommu.c
@@ -865,24 +865,23 @@ static struct viommu_dev *viommu_get_by_fwnode(struct fwnode_handle *fwnode)
return dev ? dev_to_virtio(dev)->priv : NULL;
}
-static int viommu_add_device(struct device *dev)
+static struct iommu_device *viommu_probe_device(struct device *dev)
{
int ret;
- struct iommu_group *group;
struct viommu_endpoint *vdev;
struct viommu_dev *viommu = NULL;
struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev);
if (!fwspec || fwspec->ops != &viommu_ops)
- return -ENODEV;
+ return ERR_PTR(-ENODEV);
viommu = viommu_get_by_fwnode(fwspec->iommu_fwnode);
if (!viommu)
- return -ENODEV;
+ return ERR_PTR(-ENODEV);
vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
if (!vdev)
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
vdev->dev = dev;
vdev->viommu = viommu;
@@ -896,45 +895,25 @@ static int viommu_add_device(struct device *dev)
goto err_free_dev;
}
- ret = iommu_device_link(&viommu->iommu, dev);
- if (ret)
- goto err_free_dev;
+ return &viommu->iommu;
- /*
- * Last step creates a default domain and attaches to it. Everything
- * must be ready.
- */
- group = iommu_group_get_for_dev(dev);
- if (IS_ERR(group)) {
- ret = PTR_ERR(group);
- goto err_unlink_dev;
- }
-
- iommu_group_put(group);
-
- return PTR_ERR_OR_ZERO(group);
-
-err_unlink_dev:
- iommu_device_unlink(&viommu->iommu, dev);
err_free_dev:
generic_iommu_put_resv_regions(dev, &vdev->resv_regions);
kfree(vdev);
- return ret;
+ return ERR_PTR(ret);
}
-static void viommu_remove_device(struct device *dev)
+static void viommu_release_device(struct device *dev)
{
- struct viommu_endpoint *vdev;
struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev);
+ struct viommu_endpoint *vdev;
if (!fwspec || fwspec->ops != &viommu_ops)
return;
vdev = dev_iommu_priv_get(dev);
- iommu_group_remove_device(dev);
- iommu_device_unlink(&vdev->viommu->iommu, dev);
generic_iommu_put_resv_regions(dev, &vdev->resv_regions);
kfree(vdev);
}
@@ -960,8 +939,8 @@ static struct iommu_ops viommu_ops = {
.unmap = viommu_unmap,
.iova_to_phys = viommu_iova_to_phys,
.iotlb_sync = viommu_iotlb_sync,
- .add_device = viommu_add_device,
- .remove_device = viommu_remove_device,
+ .probe_device = viommu_probe_device,
+ .release_device = viommu_release_device,
.device_group = viommu_device_group,
.get_resv_regions = viommu_get_resv_regions,
.put_resv_regions = generic_iommu_put_resv_regions,
--
2.17.1
next prev parent reply other threads:[~2020-04-29 13:39 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-29 13:36 [PATCH v3 00/34] iommu: Move iommu_group setup to IOMMU core code Joerg Roedel
2020-04-29 13:36 ` [PATCH v3 01/34] iommu: Move default domain allocation to separate function Joerg Roedel
2020-04-29 13:36 ` [PATCH v3 02/34] iommu: Add def_domain_type() callback in iommu_ops Joerg Roedel
2020-04-29 13:36 ` [PATCH v3 03/34] iommu/amd: Implement iommu_ops->def_domain_type call-back Joerg Roedel
2020-04-29 13:36 ` [PATCH v3 04/34] iommu/vt-d: Wire up iommu_ops->def_domain_type Joerg Roedel
2020-04-29 23:58 ` Lu Baolu
2020-04-29 13:36 ` [PATCH v3 05/34] iommu/amd: Remove dma_mask check from check_device() Joerg Roedel
2020-04-29 13:36 ` [PATCH v3 06/34] iommu/amd: Return -ENODEV in add_device when device is not handled by IOMMU Joerg Roedel
2020-04-29 13:36 ` [PATCH v3 07/34] iommu: Add probe_device() and release_device() call-backs Joerg Roedel
2020-04-29 13:36 ` [PATCH v3 08/34] iommu: Move default domain allocation to iommu_probe_device() Joerg Roedel
2020-04-29 13:36 ` [PATCH v3 09/34] iommu: Keep a list of allocated groups in __iommu_probe_device() Joerg Roedel
2020-04-29 13:36 ` [PATCH v3 10/34] iommu: Move new probe_device path to separate function Joerg Roedel
2020-04-29 13:36 ` [PATCH v3 11/34] iommu: Split off default domain allocation from group assignment Joerg Roedel
2020-04-29 13:36 ` [PATCH v3 12/34] iommu: Move iommu_group_create_direct_mappings() out of iommu_group_add_device() Joerg Roedel
2020-04-29 13:36 ` [PATCH v3 13/34] iommu: Export bus_iommu_probe() and make is safe for re-probing Joerg Roedel
2020-04-29 13:36 ` [PATCH v3 14/34] iommu/amd: Remove dev_data->passthrough Joerg Roedel
2020-04-29 13:36 ` [PATCH v3 15/34] iommu/amd: Convert to probe/release_device() call-backs Joerg Roedel
2020-04-29 13:36 ` [PATCH v3 16/34] iommu/vt-d: " Joerg Roedel
2020-04-30 0:07 ` Lu Baolu
2020-04-29 13:36 ` [PATCH v3 17/34] iommu/arm-smmu: " Joerg Roedel
2020-04-29 13:36 ` [PATCH v3 18/34] iommu/pamu: " Joerg Roedel
2020-04-29 13:36 ` [PATCH v3 19/34] iommu/s390: " Joerg Roedel
2020-04-29 13:36 ` Joerg Roedel [this message]
2020-04-29 13:36 ` [PATCH v3 21/34] iommu/msm: " Joerg Roedel
2020-04-29 13:37 ` [PATCH v3 22/34] iommu/mediatek: " Joerg Roedel
2020-04-29 13:37 ` [PATCH v3 23/34] iommu/mediatek-v1 " Joerg Roedel
2020-04-29 13:37 ` [PATCH v3 24/34] iommu/qcom: " Joerg Roedel
2020-04-29 13:37 ` [PATCH v3 25/34] iommu/rockchip: " Joerg Roedel
2020-04-29 13:37 ` [PATCH v3 26/34] iommu/tegra: " Joerg Roedel
2020-04-29 13:37 ` [PATCH v3 27/34] iommu/renesas: " Joerg Roedel
2020-04-29 13:37 ` [PATCH v3 28/34] iommu/omap: Remove orphan_dev tracking Joerg Roedel
2020-04-29 13:37 ` [PATCH v3 29/34] iommu/omap: Convert to probe/release_device() call-backs Joerg Roedel
2020-04-29 13:37 ` [PATCH v3 30/34] iommu/exynos: Use first SYSMMU in controllers list for IOMMU core Joerg Roedel
2020-04-29 13:37 ` [PATCH v3 31/34] iommu/exynos: Convert to probe/release_device() call-backs Joerg Roedel
2020-04-29 13:37 ` [PATCH v3 32/34] iommu: Remove add_device()/remove_device() code-paths Joerg Roedel
2020-04-29 13:37 ` [PATCH v3 33/34] iommu: Move more initialization to __iommu_probe_device() Joerg Roedel
2020-04-29 13:37 ` [PATCH v3 34/34] iommu: Unexport iommu_group_get_for_dev() Joerg Roedel
2020-05-05 12:37 ` [PATCH v3 00/34] iommu: Move iommu_group setup to IOMMU core code Joerg Roedel
2020-07-01 0:40 ` Qian Cai
2020-07-01 10:53 ` Robin Murphy
2020-07-04 0:17 ` Qian Cai
2020-07-09 15:24 ` Joerg Roedel
[not found] ` <20200704090957.8892-1-hdanton@sina.com>
2020-07-09 15:23 ` [PATCH v3 07/34] iommu: Add probe_device() and release_device() call-backs Joerg Roedel
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=20200429133712.31431-21-joro@8bytes.org \
--to=joro@8bytes.org \
--cc=agross@kernel.org \
--cc=baolu.lu@linux.intel.com \
--cc=bjorn.andersson@linaro.org \
--cc=drake@endlessm.com \
--cc=dwmw2@infradead.org \
--cc=gerald.schaefer@de.ibm.com \
--cc=heiko@sntech.de \
--cc=iommu@lists.linux-foundation.org \
--cc=jean-philippe@linaro.org \
--cc=jonathan.derrick@intel.com \
--cc=jonathanh@nvidia.com \
--cc=jroedel@suse.de \
--cc=kgene@kernel.org \
--cc=krzk@kernel.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mediatek@lists.infradead.org \
--cc=linux-rockchip@lists.infradead.org \
--cc=linux-s390@vger.kernel.org \
--cc=linux-samsung-soc@vger.kernel.org \
--cc=linux-tegra@vger.kernel.org \
--cc=m.szyprowski@samsung.com \
--cc=matthias.bgg@gmail.com \
--cc=robdclark@gmail.com \
--cc=robin.murphy@arm.com \
--cc=thierry.reding@gmail.com \
--cc=virtualization@lists.linux-foundation.org \
--cc=will@kernel.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;
as well as URLs for NNTP newsgroup(s).