2021-08-10 14:23:09

by Geert Uytterhoeven

Subject: [PATCH] iommu: APPLE_DART should depend on ARCH_APPLE

The Apple DART (Device Address Resolution Table) IOMMU is only present
on Apple ARM SoCs like the M1. Hence add a dependency on ARCH_APPLE, to
prevent asking the user about this driver when configuring a kernel
without support for the Apple Silicon SoC family.

Fixes: 05ce9d20d699b093 ("iommu/dart: Add DART iommu driver")
Signed-off-by: Geert Uytterhoeven <[email protected]>
---
drivers/iommu/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index dfe81da483e9e073..e908b8222e4ed679 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -292,7 +292,7 @@ config SPAPR_TCE_IOMMU

config APPLE_DART
tristate "Apple DART IOMMU Support"
- depends on ARM64 || (COMPILE_TEST && !GENERIC_ATOMIC64)
+ depends on ARCH_APPLE || (COMPILE_TEST && !GENERIC_ATOMIC64)
select IOMMU_API
select IOMMU_IO_PGTABLE_LPAE
default ARCH_APPLE
--
2.25.1

2021-08-11 11:00:46

by Sven Peter

Subject: Re: [PATCH] iommu: APPLE_DART should depend on ARCH_APPLE

Good catch, thanks!

Acked-by: Sven Peter <[email protected]>

Sven

On Tue, Aug 10, 2021, at 15:47, Geert Uytterhoeven wrote:
> The Apple DART (Device Address Resolution Table) IOMMU is only present
> on Apple ARM SoCs like the M1. Hence add a dependency on ARCH_APPLE, to
> prevent asking the user about this driver when configuring a kernel
> without support for the Apple Silicon SoC family.
>
> Fixes: 05ce9d20d699b093 ("iommu/dart: Add DART iommu driver")
> Signed-off-by: Geert Uytterhoeven <[email protected]>
> ---
> drivers/iommu/Kconfig | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
> index dfe81da483e9e073..e908b8222e4ed679 100644
> --- a/drivers/iommu/Kconfig
> +++ b/drivers/iommu/Kconfig
> @@ -292,7 +292,7 @@ config SPAPR_TCE_IOMMU
>
> config APPLE_DART
> tristate "Apple DART IOMMU Support"
> - depends on ARM64 || (COMPILE_TEST && !GENERIC_ATOMIC64)
> + depends on ARCH_APPLE || (COMPILE_TEST && !GENERIC_ATOMIC64)
> select IOMMU_API
> select IOMMU_IO_PGTABLE_LPAE
> default ARCH_APPLE
> --
> 2.25.1
>
>

2021-08-12 11:29:30

by Joerg Roedel

Subject: Re: [PATCH] iommu: APPLE_DART should depend on ARCH_APPLE

On Tue, Aug 10, 2021 at 03:47:19PM +0200, Geert Uytterhoeven wrote:
> The Apple DART (Device Address Resolution Table) IOMMU is only present
> on Apple ARM SoCs like the M1. Hence add a dependency on ARCH_APPLE, to
> prevent asking the user about this driver when configuring a kernel
> without support for the Apple Silicon SoC family.
>
> Fixes: 05ce9d20d699b093 ("iommu/dart: Add DART iommu driver")
> Signed-off-by: Geert Uytterhoeven <[email protected]>
> ---
> drivers/iommu/Kconfig | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
> index dfe81da483e9e073..e908b8222e4ed679 100644
> --- a/drivers/iommu/Kconfig
> +++ b/drivers/iommu/Kconfig
> @@ -292,7 +292,7 @@ config SPAPR_TCE_IOMMU
>
> config APPLE_DART
> tristate "Apple DART IOMMU Support"
> - depends on ARM64 || (COMPILE_TEST && !GENERIC_ATOMIC64)
> + depends on ARCH_APPLE || (COMPILE_TEST && !GENERIC_ATOMIC64)
> select IOMMU_API
> select IOMMU_IO_PGTABLE_LPAE
> default ARCH_APPLE

Dropped the Fixes tag, as this doesn't fix any real issue. Otherwise
applied with adjusted subject (iommu: -> iommu/dart:), Thanks.