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Message-Id: <20240812071605.9513-1-baolu.lu@linux.intel.com>
Date: Mon, 12 Aug 2024 15:16:05 +0800
From: Lu Baolu <baolu.lu@...ux.intel.com>
To: Thierry Reding <thierry.reding@...il.com>,
Mikko Perttunen <mperttunen@...dia.com>,
David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>,
Joerg Roedel <joro@...tes.org>,
Will Deacon <will@...nel.org>,
Robin Murphy <robin.murphy@....com>,
Jason Gunthorpe <jgg@...pe.ca>,
Kevin Tian <kevin.tian@...el.com>
Cc: dri-devel@...ts.freedesktop.org,
linux-tegra@...r.kernel.org,
iommu@...ts.linux.dev,
linux-kernel@...r.kernel.org,
Lu Baolu <baolu.lu@...ux.intel.com>,
Jason Gunthorpe <jgg@...dia.com>
Subject: [PATCH 1/1] gpu: host1x: Use iommu_paging_domain_alloc()
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@...ux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@...dia.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
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