Re: [PATCH v4 15/20] iommu/tegra: gart: Allow only one active domain at a time

Thierry Reding
2018-09-24T10:50:49Z

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On Mon, Sep 24, 2018 at 03:41:48AM +0300, Dmitry Osipenko wrote:
> GART has a single address space that is shared by all devices, hence only
> one domain could be active at a time.
>
> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
> ---
> drivers/iommu/tegra-gart.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c
> index 1d45b023adea..9f7d3afb686f 100644
> --- a/drivers/iommu/tegra-gart.c
> +++ b/drivers/iommu/tegra-gart.c
> @@ -55,6 +55,7 @@ struct gart_device {
> spinlock_t pte_lock; /* for pagetable */
> struct list_head client;
> spinlock_t client_lock; /* for client list */
> + struct iommu_domain *active_domain; /* current active domain */

The active_ prefix seems a little unnecessary here, but either way:

Acked-by: Thierry Reding <treding@nvidia.com>

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