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| author | Mark Brown <broonie@kernel.org> | 2018-10-01 12:13:41 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-10-01 12:13:41 +0100 |
| commit | c6ee9e74b237b01d0a4988de41acbf569fdb8974 (patch) | |
| tree | 6bfbda84d65410c342e756f710833a261086c5f6 /drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c | |
| parent | f4150b38acaa292e9efa1e0d82a3d8bdfdbec658 (diff) | |
| parent | 9c6cd3f3a4b8194e82fa927bc00028c7a505e3b3 (diff) | |
Merge tag 'v4.4.159' into linux-linaro-lsk-v4.4lsk-v4.4-18.09
This is the 4.4.159 stable release
# gpg: Signature made Sat 29 Sep 2018 11:08:56 BST
# gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E
# gpg: Good signature from "Greg Kroah-Hartman <gregkh@linuxfoundation.org>" [unknown]
# gpg: aka "Greg Kroah-Hartman (Linux kernel stable release signing key) <greg@kroah.com>" [unknown]
# gpg: aka "Greg Kroah-Hartman <gregkh@kernel.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 647F 2865 4894 E3BD 4571 99BE 38DB BDC8 6092 693E
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c index e7e581d6a8ff..1bfc4807ce5b 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c @@ -23,6 +23,10 @@ #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER #include "priv.h" +#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU) +#include <asm/dma-iommu.h> +#endif + static int nvkm_device_tegra_power_up(struct nvkm_device_tegra *tdev) { @@ -85,6 +89,15 @@ nvkm_device_tegra_probe_iommu(struct nvkm_device_tegra *tdev) unsigned long pgsize_bitmap; int ret; +#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU) + if (dev->archdata.mapping) { + struct dma_iommu_mapping *mapping = to_dma_iommu_mapping(dev); + + arm_iommu_detach_device(dev); + arm_iommu_release_mapping(mapping); + } +#endif + if (!tdev->func->iommu_bit) return; |