[PATCH v3 18/21] drm/rockchip: Use iommu_paging_domain_alloc()

Lu Baolu
2024-06-10T08:59:50Z

Commit <421be3ee36a4> ("drm/rockchip: Refactor IOMMU initialisation") has
refactored rockchip_drm_init_iommu() to pass a device that the domain is
allocated for. Replace iommu_domain_alloc() with
iommu_paging_domain_alloc() to retire the former.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
---
drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
index ab55d7132550..52126ffb9280 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
@@ -103,13 +103,17 @@ static int rockchip_drm_init_iommu(struct drm_device *drm_dev)
struct rockchip_drm_private *private = drm_dev->dev_private;
struct iommu_domain_geometry *geometry;
u64 start, end;
+ int ret;

if (IS_ERR_OR_NULL(private->iommu_dev))
return 0;

- private->domain = iommu_domain_alloc(private->iommu_dev->bus);
- if (!private->domain)
- return -ENOMEM;
+ private->domain = iommu_paging_domain_alloc(private->iommu_dev);
+ if (IS_ERR(private->domain)) {
+ ret = PTR_ERR(private->domain);
+ private->domain = NULL;
+ return ret;
+ }

geometry = &private->domain->geometry;
start = geometry->aperture_start;
--
2.34.1