linux-kernel - [PATCH 1/1] drm/nouveau/device: Get right pgsize_bitmap of iommu

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Message-Id: <20211218074546.1772553-1-baolu.lu@linux.intel.com>
Date:   Sat, 18 Dec 2021 15:45:46 +0800
From:   Lu Baolu <baolu.lu@...ux.intel.com>
To:     Ben Skeggs <bskeggs@...hat.com>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>
Cc:     Joerg Roedel <joro@...tes.org>,
        Robin Murphy <robin.murphy@....com>,
        dri-devel@...ts.freedesktop.org, nouveau@...ts.freedesktop.org,
        linux-tegra@...r.kernel.org, iommu@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org, Lu Baolu <baolu.lu@...ux.intel.com>
Subject: [PATCH 1/1] drm/nouveau/device: Get right pgsize_bitmap of iommu_domain

The suported page sizes of an iommu_domain are saved in the pgsize_bitmap
field. Retrieve the value from the right place.

Fixes: 58fd9375c2c534 ("drm/nouveau/platform: probe IOMMU if present")
Signed-off-by: Lu Baolu <baolu.lu@...ux.intel.com>
---
 drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c
index d0d52c1d4aee..992cc285f2fe 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c
@@ -133,7 +133,7 @@ nvkm_device_tegra_probe_iommu(struct nvkm_device_tegra *tdev)
 		 * or equal to the system's PAGE_SIZE, with a preference if
 		 * both are equal.
 		 */
-		pgsize_bitmap = tdev->iommu.domain->ops->pgsize_bitmap;
+		pgsize_bitmap = tdev->iommu.domain->pgsize_bitmap;
 		if (pgsize_bitmap & PAGE_SIZE) {
 			tdev->iommu.pgshift = PAGE_SHIFT;
 		} else {
-- 
2.25.1