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01 Sep 2024 18:51:21 -0700 X-CSE-ConnectionGUID: 29OEIk5/RfmpO23cXnBNZA== X-CSE-MsgGUID: ON9C07fzS3iCg+btlHUEUA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,194,1719903600"; d="scan'208";a="64817693" Received: from allen-box.sh.intel.com ([10.239.159.127]) by orviesa006.jf.intel.com with ESMTP; 01 Sep 2024 18:51:15 -0700 From: Lu Baolu To: Karol Herbst , Lyude Paul , Danilo Krummrich , David Airlie , Daniel Vetter , Thierry Reding , Jonathan Hunter , Sandy Huang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Mikko Perttunen , Joerg Roedel , Will Deacon , Robin Murphy , Jason Gunthorpe , Kevin Tian Cc: dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org, linux-tegra@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-media@vger.kernel.org, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, Lu Baolu Subject: [PATCH v2 3/3] drm/tegra: Use iommu_paging_domain_alloc() Date: Mon, 2 Sep 2024 09:47:00 +0800 Message-Id: <20240902014700.66095-4-baolu.lu@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240902014700.66095-1-baolu.lu@linux.intel.com> References: <20240902014700.66095-1-baolu.lu@linux.intel.com> Precedence: bulk X-Mailing-List: linux-tegra@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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 Acked-by: Thierry Reding --- drivers/gpu/drm/tegra/drm.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) 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;