[PATCH 1/1] drm/nouveau/device: Get right pgsize_bitmap of iommu_domain
Robin Murphy
robin.murphy at arm.com
Mon Dec 20 11:22:51 UTC 2021
On 2021-12-18 07:45, Lu Baolu wrote:
> 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")
...except domain->pgsize_bitmap was introduced more than a year after
that commit ;)
As an improvement rather than a fix, though,
Reviewed-by: Robin Murphy <robin.murphy at arm.com>
> Signed-off-by: Lu Baolu <baolu.lu at linux.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 {
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