[04/12] iommu-helper: move the IOMMU_HELPER config symbol to lib/

Message ID 20180415145947.1248-5-hch@lst.de
State Not Applicable
Headers show
Series
  • [01/12] iommu-common: move to arch/sparc
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Commit Message

Christoph Hellwig April 15, 2018, 2:59 p.m.
This way we have one central definition of it, and user can select it as
needed.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/powerpc/Kconfig | 4 +---
 arch/s390/Kconfig    | 5 ++---
 arch/sparc/Kconfig   | 5 +----
 arch/x86/Kconfig     | 6 ++----
 lib/Kconfig          | 3 +++
 5 files changed, 9 insertions(+), 14 deletions(-)

Comments

Anshuman Khandual April 16, 2018, 9:43 a.m. | #1
On 04/15/2018 08:29 PM, Christoph Hellwig wrote:
> This way we have one central definition of it, and user can select it as
> needed.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Reviewed-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>

Patch

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index eb23f2949bf6..3ca617cd4807 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -223,6 +223,7 @@  config PPC
 	select HAVE_SYSCALL_TRACEPOINTS
 	select HAVE_VIRT_CPU_ACCOUNTING
 	select HAVE_IRQ_TIME_ACCOUNTING
+	select IOMMU_HELPER			if PPC64
 	select IRQ_DOMAIN
 	select IRQ_FORCED_THREADING
 	select MODULES_USE_ELF_RELA
@@ -478,9 +479,6 @@  config MPROFILE_KERNEL
 	depends on PPC64 && CPU_LITTLE_ENDIAN
 	def_bool !DISABLE_MPROFILE_KERNEL
 
-config IOMMU_HELPER
-	def_bool PPC64
-
 config SWIOTLB
 	bool "SWIOTLB support"
 	default n
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 32a0d5b958bf..bfa449fdeb19 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -693,7 +693,9 @@  config QDIO
 menuconfig PCI
 	bool "PCI support"
 	select PCI_MSI
+	select IOMMU_HELPER
 	select IOMMU_SUPPORT
+
 	help
 	  Enable PCI support.
 
@@ -717,9 +719,6 @@  config PCI_DOMAINS
 config HAS_IOMEM
 	def_bool PCI
 
-config IOMMU_HELPER
-	def_bool PCI
-
 config NEED_SG_DMA_LENGTH
 	def_bool PCI
 
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 8767e45f1b2b..44e0f3cd7988 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -67,6 +67,7 @@  config SPARC64
 	select HAVE_SYSCALL_TRACEPOINTS
 	select HAVE_CONTEXT_TRACKING
 	select HAVE_DEBUG_KMEMLEAK
+	select IOMMU_HELPER
 	select SPARSE_IRQ
 	select RTC_DRV_CMOS
 	select RTC_DRV_BQ4802
@@ -106,10 +107,6 @@  config ARCH_DMA_ADDR_T_64BIT
 	bool
 	default y if ARCH_ATU
 
-config IOMMU_HELPER
-	bool
-	default y if SPARC64
-
 config STACKTRACE_SUPPORT
 	bool
 	default y if SPARC64
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 336b1378ee62..06ca29e70d6b 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -870,6 +870,7 @@  config DMI
 
 config GART_IOMMU
 	bool "Old AMD GART IOMMU support"
+	select IOMMU_HELPER
 	select SWIOTLB
 	depends on X86_64 && PCI && AMD_NB
 	---help---
@@ -891,6 +892,7 @@  config GART_IOMMU
 
 config CALGARY_IOMMU
 	bool "IBM Calgary IOMMU support"
+	select IOMMU_HELPER
 	select SWIOTLB
 	depends on X86_64 && PCI
 	---help---
@@ -928,10 +930,6 @@  config SWIOTLB
 	  with more than 3 GB of memory.
 	  If unsure, say Y.
 
-config IOMMU_HELPER
-	def_bool y
-	depends on CALGARY_IOMMU || GART_IOMMU
-
 config MAXSMP
 	bool "Enable Maximum number of SMP Processors and NUMA Nodes"
 	depends on X86_64 && SMP && DEBUG_KERNEL
diff --git a/lib/Kconfig b/lib/Kconfig
index 5fe577673b98..2f6908577534 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -429,6 +429,9 @@  config SGL_ALLOC
 	bool
 	default n
 
+config IOMMU_HELPER
+	bool
+
 config DMA_DIRECT_OPS
 	bool
 	depends on HAS_DMA && (!64BIT || ARCH_DMA_ADDR_T_64BIT)