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Don't allow IOMMUv2 to peek directly into the cmdbuf, but get the
needed PA through a dedicated function.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
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This will get more complex with the following changes, so move it
into its own place.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
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Declare etnaviv_iommu_ops structure as const as it is only used when
the reference of one of its field is stored in the ops field of a
iommu_domain structure. This ops field is of type const, so
etnaviv_iommu_ops structures having similar properties can be declared
const too.
Done using Coccinelle.
Before and after size details of .o file remains the same after
cross compiling for arm architecture.
lst: Trimmed commit message, apply the same change to iommu_v2.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
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All other parts are now in place, so implement the actual translation
step and hook it up, so the driver claims support for cores with
the new MMU.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
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The GPU code doesn't need to deal with the IOMMU directly, instead
it can all be hidden behind the etnaviv mmu interface. Move the
last remaining part into etnaviv mmu.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
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This adds the etnaviv DRM driver and hooks it up in Makefiles
and Kconfig.
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Lucas Stach
Bhumika Goyal
The etnaviv authors