From: Lu Baolu Date: Mon, 2 Sep 2024 01:47:00 +0000 (+0800) Subject: drm/tegra: Use iommu_paging_domain_alloc() X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=45c690aea8ee5b7d012cd593bd288540a4bfdbf0;p=users%2Fjedix%2Flinux-maple.git drm/tegra: Use iommu_paging_domain_alloc() Commit <17de3f5fdd35> ("iommu: Retire bus ops") removes iommu ops from the bus structure. The iommu subsystem no longer relies on bus for operations. So iommu_domain_alloc() interface is no longer relevant. Replace iommu_domain_alloc() with iommu_paging_domain_alloc() which takes the physical device from which the host1x_device virtual device was instantiated. This physical device is a common parent to all physical devices that are part of the virtual device. Suggested-by: Thierry Reding Signed-off-by: Lu Baolu Signed-off-by: Lyude Paul Link: https://patchwork.freedesktop.org/patch/msgid/20240902014700.66095-4-baolu.lu@linux.intel.com --- diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index 03d1c76aec2d..d79c76a287f2 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -1135,6 +1135,7 @@ static bool host1x_drm_wants_iommu(struct host1x_device *dev) static int host1x_drm_probe(struct host1x_device *dev) { + struct device *dma_dev = dev->dev.parent; struct tegra_drm *tegra; struct drm_device *drm; int err; @@ -1149,8 +1150,8 @@ static int host1x_drm_probe(struct host1x_device *dev) goto put; } - if (host1x_drm_wants_iommu(dev) && iommu_present(&platform_bus_type)) { - tegra->domain = iommu_domain_alloc(&platform_bus_type); + if (host1x_drm_wants_iommu(dev) && device_iommu_mapped(dma_dev)) { + tegra->domain = iommu_paging_domain_alloc(dma_dev); if (!tegra->domain) { err = -ENOMEM; goto free;