Re: [PATCH v4 15/20] iommu/tegra: gart: Allow only one active domain at a time
From: Thierry Reding <hidden>
Date: 2018-09-24 10:50:49
Also in:
linux-iommu, linux-tegra, lkml
On Mon, Sep 24, 2018 at 03:41:48AM +0300, Dmitry Osipenko wrote:
quoted hunk ↗ jump to hunk
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 <redacted> --- 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 <redacted>