OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

iommu: Remove depends on HAS_DMA in case of platform dependency 

Remove dependencies on HAS_DMA where a Kconfig symbol depends on another
symbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST".
In most cases this other symbol is an architecture or platform specific
symbol, or PCI.

Generic symbols and drivers without platform dependencies keep their
dependencies on HAS_DMA, to prevent compiling subsystems or drivers that
cannot work anyway.

This simplifies the dependencies, and allows to improve compile-testing.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Geert Uytterhoeven 2018-04-17 19:49:09 +02:00 committed by Joerg Roedel
parent 6da6c0db53
commit 48e6f7652d
1 changed files with 2 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/iommu/Kconfig
View File

@ -23,7 +23,7 @@ config IOMMU_IO_PGTABLE
config IOMMU_IO_PGTABLE_LPAE
bool "ARMv7/v8 Long Descriptor Format"
select IOMMU_IO_PGTABLE
depends on HAS_DMA && (ARM || ARM64 || (COMPILE_TEST && !GENERIC_ATOMIC64))
depends on ARM || ARM64 || (COMPILE_TEST && !GENERIC_ATOMIC64)
help
Enable support for the ARM long descriptor pagetable format.
This allocator supports 4K/2M/1G, 16K/32M and 64K/512M page
@ -42,7 +42,7 @@ config IOMMU_IO_PGTABLE_LPAE_SELFTEST
config IOMMU_IO_PGTABLE_ARMV7S
bool "ARMv7/v8 Short Descriptor Format"
select IOMMU_IO_PGTABLE
depends on HAS_DMA && (ARM || ARM64 || COMPILE_TEST)
depends on ARM || ARM64 || COMPILE_TEST
help
Enable support for the ARM Short-descriptor pagetable format.
This supports 32-bit virtual and physical addresses mapped using
@ -376,7 +376,6 @@ config QCOM_IOMMU
# Note: iommu drivers cannot (yet?) be built as modules
bool "Qualcomm IOMMU Support"
depends on ARCH_QCOM || (COMPILE_TEST && !GENERIC_ATOMIC64)
depends on HAS_DMA
select IOMMU_API
select IOMMU_IO_PGTABLE_LPAE
select ARM_DMA_USE_IOMMU