From: Lu Baolu <baolu.lu@linux.intel.com>
To: Thierry Reding <thierry.reding@gmail.com>,
Mikko Perttunen <mperttunen@nvidia.com>,
David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>,
Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Jason Gunthorpe <jgg@ziepe.ca>, Kevin Tian <kevin.tian@intel.com>
Cc: dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org,
iommu@lists.linux.dev, linux-kernel@vger.kernel.org,
Lu Baolu <baolu.lu@linux.intel.com>,
Jason Gunthorpe <jgg@nvidia.com>
Subject: [PATCH 1/1] gpu: host1x: Use iommu_paging_domain_alloc()
Date: Mon, 12 Aug 2024 15:16:05 +0800 [thread overview]
Message-ID: <20240812071605.9513-1-baolu.lu@linux.intel.com> (raw)
An iommu domain is allocated in host1x_iommu_attach() and is attached to
host->dev. Use iommu_paging_domain_alloc() to make it explicit.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20240610085555.88197-8-baolu.lu@linux.intel.com
---
drivers/gpu/host1x/dev.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
index f006bc931324..b62e4f0e8130 100644
--- a/drivers/gpu/host1x/dev.c
+++ b/drivers/gpu/host1x/dev.c
@@ -404,9 +404,10 @@ static struct iommu_domain *host1x_iommu_attach(struct host1x *host)
if (err < 0)
goto put_group;
- host->domain = iommu_domain_alloc(&platform_bus_type);
- if (!host->domain) {
- err = -ENOMEM;
+ host->domain = iommu_paging_domain_alloc(host->dev);
+ if (IS_ERR(host->domain)) {
+ err = PTR_ERR(host->domain);
+ host->domain = NULL;
goto put_cache;
}
--
2.34.1
next reply other threads:[~2024-08-12 7:19 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-12 7:16 Lu Baolu [this message]
2024-08-28 15:12 ` [PATCH 1/1] gpu: host1x: Use iommu_paging_domain_alloc() Thierry Reding
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