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c8a2036474
Currently configurations can be generated where IOMMU_SUPPORT is disabled but IOMMU_IOVA is built as a module and HOST1X as built-in. In such a case, the symbols guarded by IOMMU_IOVA will not be available when linking the host1x driver and cause a linking failure. Simplify this by unconditionally selecting IOMMU_IOVA, which makes sure that it will be forced to =y if HOST1X=y. Technically we can now get IOMMU_IOVA code built-in even if we don't use it (host1x only uses it when IOMMU_SUPPORT is also enabled), but such configuration are of a mostly academic nature. In all practical configurations we want IOMMU support anyway. Signed-off-by: Thierry Reding <treding@nvidia.com>
24 lines
676 B
Text
24 lines
676 B
Text
# SPDX-License-Identifier: GPL-2.0-only
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config TEGRA_HOST1X
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tristate "NVIDIA Tegra host1x driver"
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depends on ARCH_TEGRA || (ARM && COMPILE_TEST)
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select IOMMU_IOVA
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help
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Driver for the NVIDIA Tegra host1x hardware.
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The Tegra host1x module is the DMA engine for register access to
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Tegra's graphics- and multimedia-related modules. The modules served
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by host1x are referred to as clients. host1x includes some other
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functionality, such as synchronization.
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if TEGRA_HOST1X
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config TEGRA_HOST1X_FIREWALL
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bool "Enable HOST1X security firewall"
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default y
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help
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Say yes if kernel should protect command streams from tampering.
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If unsure, choose Y.
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endif
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