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dma-mapping: move the NEED_DMA_MAP_STATE config symbol to lib/Kconfig 

This way we have one central definition of it, and user can select it as
needed.  Note that we now also always select it when CONFIG_DMA_API_DEBUG
is select, which fixes some incorrect checks in a few network drivers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
This commit is contained in:
Christoph Hellwig 2018-05-09 06:53:49 +02:00
parent 86596f0a28
commit f616ab59c2
15 changed files with 17 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/alpha/Kconfig
View File

@ -10,6 +10,7 @@ config ALPHA
select HAVE_OPROFILE
select HAVE_PCSPKR_PLATFORM
select HAVE_PERF_EVENTS
select NEED_DMA_MAP_STATE
select NEED_SG_DMA_LENGTH
select VIRT_TO_BUS
select GENERIC_IRQ_PROBE
@ -68,9 +69,6 @@ config ZONE_DMA
config ARCH_DMA_ADDR_T_64BIT
def_bool y
config NEED_DMA_MAP_STATE
def_bool y
config GENERIC_ISA_DMA
bool
default y

4
arch/arm/Kconfig
View File

@ -95,6 +95,7 @@ config ARM
select HAVE_VIRT_CPU_ACCOUNTING_GEN
select IRQ_FORCED_THREADING
select MODULES_USE_ELF_REL
select NEED_DMA_MAP_STATE
select NO_BOOTMEM
select OF_EARLY_FLATTREE if OF
select OF_RESERVED_MEM if OF
@ -220,9 +221,6 @@ config ARCH_MAY_HAVE_PC_FDC
config ZONE_DMA
bool
config NEED_DMA_MAP_STATE
def_bool y
config ARCH_SUPPORTS_UPROBES
def_bool y

4
arch/arm64/Kconfig
View File

@ -132,6 +132,7 @@ config ARM64
select IRQ_FORCED_THREADING
select MODULES_USE_ELF_RELA
select MULTI_IRQ_HANDLER
select NEED_DMA_MAP_STATE
select NEED_SG_DMA_LENGTH
select NO_BOOTMEM
select OF
@ -240,9 +241,6 @@ config HAVE_GENERIC_GUP
config ARCH_DMA_ADDR_T_64BIT
def_bool y
config NEED_DMA_MAP_STATE
def_bool y
config SMP
def_bool y

4
arch/ia64/Kconfig
View File

@ -53,6 +53,7 @@ config IA64
select MODULES_USE_ELF_RELA
select ARCH_USE_CMPXCHG_LOCKREF
select HAVE_ARCH_AUDITSYSCALL
select NEED_DMA_MAP_STATE
select NEED_SG_DMA_LENGTH
default y
help
@ -81,9 +82,6 @@ config MMU
config ARCH_DMA_ADDR_T_64BIT
def_bool y
config NEED_DMA_MAP_STATE
def_bool y
config SWIOTLB
bool

3
arch/mips/Kconfig
View File

@ -1121,9 +1121,6 @@ config DMA_NONCOHERENT
bool
select NEED_DMA_MAP_STATE
config NEED_DMA_MAP_STATE
bool
config SYS_HAS_EARLY_PRINTK
bool

4
arch/parisc/Kconfig
View File

@ -51,6 +51,7 @@ config PARISC
select GENERIC_CLOCKEVENTS
select ARCH_NO_COHERENT_DMA_MMAP
select CPU_NO_EFFICIENT_FFS
select NEED_DMA_MAP_STATE
select NEED_SG_DMA_LENGTH
help
@ -112,9 +113,6 @@ config PM
config STACKTRACE_SUPPORT
def_bool y
config NEED_DMA_MAP_STATE
def_bool y
config ISA_DMA_API
bool

4
arch/s390/Kconfig
View File

@ -710,6 +710,7 @@ menuconfig PCI
select PCI_MSI
select IOMMU_HELPER
select IOMMU_SUPPORT
select NEED_DMA_MAP_STATE
select NEED_SG_DMA_LENGTH
help
@ -735,9 +736,6 @@ config PCI_DOMAINS
config HAS_IOMEM
def_bool PCI
config NEED_DMA_MAP_STATE
def_bool PCI
config CHSC_SCH
def_tristate m
prompt "Support for CHSC subchannels"

4
arch/sh/Kconfig
View File

@ -49,6 +49,7 @@ config SUPERH
select HAVE_ARCH_AUDITSYSCALL
select HAVE_FUTEX_CMPXCHG if FUTEX
select HAVE_NMI
select NEED_DMA_MAP_STATE
select NEED_SG_DMA_LENGTH
help
@ -161,9 +162,6 @@ config DMA_COHERENT
config DMA_NONCOHERENT
def_bool !DMA_COHERENT
config NEED_DMA_MAP_STATE
def_bool DMA_NONCOHERENT
config PGTABLE_LEVELS
default 3 if X2TLB
default 2

4
arch/sparc/Kconfig
View File

@ -43,6 +43,7 @@ config SPARC
select ARCH_HAS_SG_CHAIN
select CPU_NO_EFFICIENT_FFS
select LOCKDEP_SMALL if LOCKDEP
select NEED_DMA_MAP_STATE
select NEED_SG_DMA_LENGTH
config SPARC32
@ -143,9 +144,6 @@ config ZONE_DMA
bool
default y if SPARC32
config NEED_DMA_MAP_STATE
def_bool y
config GENERIC_ISA_DMA
bool
default y if SPARC32

4
arch/unicore32/Kconfig
View File

@ -19,6 +19,7 @@ config UNICORE32
select ARCH_WANT_FRAME_POINTERS
select GENERIC_IOMAP
select MODULES_USE_ELF_REL
select NEED_DMA_MAP_STATE
help
UniCore-32 is 32-bit Instruction Set Architecture,
including a series of low-power-consumption RISC chip
@ -61,9 +62,6 @@ config ARCH_MAY_HAVE_PC_FDC
config ZONE_DMA
def_bool y
config NEED_DMA_MAP_STATE
def_bool y
source "init/Kconfig"
source "kernel/Kconfig.freezer"

6
arch/x86/Kconfig
View File

@ -28,6 +28,7 @@ config X86_64
select ARCH_USE_CMPXCHG_LOCKREF
select HAVE_ARCH_SOFT_DIRTY
select MODULES_USE_ELF_RELA
select NEED_DMA_MAP_STATE
select X86_DEV_DMA_OPS
select ARCH_HAS_SYSCALL_WRAPPER
@ -236,10 +237,6 @@ config ARCH_MMAP_RND_COMPAT_BITS_MAX
config SBUS
bool
config NEED_DMA_MAP_STATE
def_bool y
depends on X86_64 || INTEL_IOMMU || DMA_API_DEBUG || SWIOTLB
config GENERIC_ISA_DMA
def_bool y
depends on ISA_DMA_API
@ -925,6 +922,7 @@ config CALGARY_IOMMU_ENABLED_BY_DEFAULT
# need this always selected by IOMMU for the VIA workaround
config SWIOTLB
def_bool y if X86_64
select NEED_DMA_MAP_STATE
---help---
Support for software bounce buffers used on x86-64 systems
which don't have a hardware IOMMU. Using this PCI devices

1
drivers/iommu/Kconfig
View File

@ -146,6 +146,7 @@ config INTEL_IOMMU
select DMA_DIRECT_OPS
select IOMMU_API
select IOMMU_IOVA
select NEED_DMA_MAP_STATE
select DMAR_TABLE
help
DMA remapping (DMAR) devices support enables independent address

2
include/linux/dma-mapping.h
View File

@ -838,7 +838,7 @@ static inline int dma_mmap_wc(struct device *dev,
#define dma_mmap_writecombine dma_mmap_wc
#endif
#if defined(CONFIG_NEED_DMA_MAP_STATE) || defined(CONFIG_DMA_API_DEBUG)
#ifdef CONFIG_NEED_DMA_MAP_STATE
#define DEFINE_DMA_UNMAP_ADDR(ADDR_NAME) dma_addr_t ADDR_NAME
#define DEFINE_DMA_UNMAP_LEN(LEN_NAME) __u32 LEN_NAME
#define dma_unmap_addr(PTR, ADDR_NAME) ((PTR)->ADDR_NAME)

3
lib/Kconfig
View File

@ -432,6 +432,9 @@ config SGL_ALLOC
config NEED_SG_DMA_LENGTH
bool
config NEED_DMA_MAP_STATE
bool
config IOMMU_HELPER
bool

1
lib/Kconfig.debug
View File

@ -1634,6 +1634,7 @@ config PROVIDE_OHCI1394_DMA_INIT
config DMA_API_DEBUG
bool "Enable debugging of DMA-API usage"
select NEED_DMA_MAP_STATE
help
Enable this option to debug the use of the DMA API by device drivers.
With this option you will be able to detect common bugs in device