Am Mittwoch, den 11.01.2017, 14:33 +0100 schrieb Arnd Bergmann:
> Many DRM drivers only work with an MMU, and after the patch to enable
> core DRM support without MMU, we already had one fixup for many of them.
> The etnaviv, armada and msm drivers were missed and have the same problem:
>
> warning: (DRM_ETNAVIV) selects IOMMU_SUPPORT which has unmet direct
> dependencies (MMU)
> warning: (DRM_I915 && DRM_MSM && DRM_ETNAVIV) selects SHMEM which has unmet
> direct dependencies (MMU)
> drivers/gpu/drm/armada/armada_gem.o: In function `armada_gem_vm_fault':
> armada_gem.c:(.text.armada_gem_vm_fault+0x14): undefined reference to
> `vm_insert_pfn'
> arch/arm/mm/dma-mapping.c: In function '__iommu_alloc_remap':
> arch/arm/mm/dma-mapping.c:1390:4: error: 'VM_ARM_DMA_CONSISTENT' undeclared
> (first use in this function)
> arch/arm/mm/dma-mapping.c:1456:31: error: 'atomic_pool' undeclared (first use
> in this function); did you mean 'atomic_xor'?
>
> Fixes: 011cda589938 ("drm: fix compilations issues introduced by "drm: allow
> to use mmuless SoC"")
> Fixes: 62a0d98a188c ("drm: allow to use mmuless SoC")
> Signed-off-by: Arnd Bergmann <a...@arndb.de>
Acked-by: Lucas Stach <l.st...@pengutronix.de>
> ---
> drivers/gpu/drm/armada/Kconfig | 2 +-
> drivers/gpu/drm/etnaviv/Kconfig | 1 +
> drivers/gpu/drm/msm/Kconfig | 1 +
> 3 files changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/armada/Kconfig b/drivers/gpu/drm/armada/Kconfig
> index 15f3ecfb16f1..eafaeeb7b5b1 100644
> --- a/drivers/gpu/drm/armada/Kconfig
> +++ b/drivers/gpu/drm/armada/Kconfig
> @@ -1,6 +1,6 @@
> config DRM_ARMADA
> tristate "DRM support for Marvell Armada SoCs"
> - depends on DRM && HAVE_CLK && ARM
> + depends on DRM && HAVE_CLK && ARM && MMU
> select DRM_KMS_HELPER
> help
> Support the "LCD" controllers found on the Marvell Armada 510
> diff --git a/drivers/gpu/drm/etnaviv/Kconfig b/drivers/gpu/drm/etnaviv/Kconfig
> index 2cde7a5442fb..656c061b439d 100644
> --- a/drivers/gpu/drm/etnaviv/Kconfig
> +++ b/drivers/gpu/drm/etnaviv/Kconfig
> @@ -3,6 +3,7 @@ config DRM_ETNAVIV
> tristate "ETNAVIV (DRM support for Vivante GPU IP cores)"
> depends on DRM
> depends on ARCH_MXC || ARCH_DOVE
> + depends on MMU
> select SHMEM
> select TMPFS
> select IOMMU_API
> diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig
> index d96b2b6898a3..7f78da695dff 100644
> --- a/drivers/gpu/drm/msm/Kconfig
> +++ b/drivers/gpu/drm/msm/Kconfig
> @@ -4,6 +4,7 @@ config DRM_MSM
> depends on DRM
> depends on ARCH_QCOM || (ARM && COMPILE_TEST)
> depends on OF && COMMON_CLK
> + depends on MMU
> select REGULATOR
> select DRM_KMS_HELPER
> select DRM_PANEL
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