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dma-mapping: always build the direct mapping code

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All architectures except for sparc64 use the dma-direct code in some
form, and even for sparc64 we had the discussion of a direct mapping
mode a while ago.  In preparation for directly calling the direct
mapping code don't bother having it optionally but always build the
code in.  This is a minor hardship for some powerpc and arm configs
that don't pull it in yet (although they should in a relase ot two),
and sparc64 which currently doesn't need it at all, but it will
reduce the ifdef mess we'd otherwise need significantly.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Tested-by: Jesper Dangaard Brouer <brouer@redhat.com>
Tested-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Christoph Hellwig 2018-12-06 12:50:26 -08:00
parent 8ddbe5943c
commit 3731c3d477
24 changed files with 1 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/alpha/Kconfig
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@ -203,7 +203,6 @@ config ALPHA_EIGER
config ALPHA_JENSEN
bool "Jensen"
depends on BROKEN
select DMA_DIRECT_OPS
help
DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
of the first-generation Alpha systems. A number of these systems

1
arch/arc/Kconfig
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@ -17,7 +17,6 @@ config ARC
select BUILDTIME_EXTABLE_SORT
select CLONE_BACKWARDS
select COMMON_CLK
select DMA_DIRECT_OPS
select GENERIC_ATOMIC64 if !ISA_ARCV2 || !(ARC_HAS_LL64 && ARC_HAS_LLSC)
select GENERIC_CLOCKEVENTS
select GENERIC_FIND_FIRST_BIT

1
arch/arm/Kconfig
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@ -30,7 +30,6 @@ config ARM
select CLONE_BACKWARDS
select CPU_PM if (SUSPEND || CPU_IDLE)
select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
select DMA_DIRECT_OPS if !MMU
select DMA_REMAP if MMU
select EDAC_SUPPORT
select EDAC_ATOMIC_SCRUB

1
arch/arm64/Kconfig
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@ -80,7 +80,6 @@ config ARM64
select CPU_PM if (SUSPEND || CPU_IDLE)
select CRC32
select DCACHE_WORD_ACCESS
select DMA_DIRECT_OPS
select DMA_DIRECT_REMAP
select EDAC_SUPPORT
select FRAME_POINTER

1
arch/c6x/Kconfig
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@ -9,7 +9,6 @@ config C6X
select ARCH_HAS_SYNC_DMA_FOR_CPU
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
select CLKDEV_LOOKUP
select DMA_DIRECT_OPS
select GENERIC_ATOMIC64
select GENERIC_IRQ_SHOW
select HAVE_ARCH_TRACEHOOK

1
arch/csky/Kconfig
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@ -7,7 +7,6 @@ config CSKY
select COMMON_CLK
select CLKSRC_MMIO
select CLKSRC_OF
select DMA_DIRECT_OPS
select DMA_DIRECT_REMAP
select IRQ_DOMAIN
select HANDLE_DOMAIN_IRQ

1
arch/h8300/Kconfig
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@ -22,7 +22,6 @@ config H8300
select HAVE_ARCH_KGDB
select HAVE_ARCH_HASH
select CPU_NO_EFFICIENT_FFS
select DMA_DIRECT_OPS
config CPU_BIG_ENDIAN
def_bool y

1
arch/hexagon/Kconfig
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@ -31,7 +31,6 @@ config HEXAGON
select GENERIC_CLOCKEVENTS_BROADCAST
select MODULES_USE_ELF_RELA
select GENERIC_CPU_DEVICES
select DMA_DIRECT_OPS
---help---
Qualcomm Hexagon is a processor architecture designed for high
performance and low power across a wide variety of applications.

1
arch/m68k/Kconfig
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@ -26,7 +26,6 @@ config M68K
select MODULES_USE_ELF_RELA
select OLD_SIGSUSPEND3
select OLD_SIGACTION
select DMA_DIRECT_OPS if HAS_DMA
select ARCH_DISCARD_MEMBLOCK
config CPU_BIG_ENDIAN

1
arch/microblaze/Kconfig
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@ -12,7 +12,6 @@ config MICROBLAZE
select TIMER_OF
select CLONE_BACKWARDS3
select COMMON_CLK
select DMA_DIRECT_OPS
select GENERIC_ATOMIC64
select GENERIC_CLOCKEVENTS
select GENERIC_CPU_DEVICES

1
arch/mips/Kconfig
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@ -16,7 +16,6 @@ config MIPS
select BUILDTIME_EXTABLE_SORT
select CLONE_BACKWARDS
select CPU_PM if CPU_IDLE
select DMA_DIRECT_OPS
select GENERIC_ATOMIC64 if !64BIT
select GENERIC_CLOCKEVENTS
select GENERIC_CMOS_UPDATE

1
arch/nds32/Kconfig
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@ -11,7 +11,6 @@ config NDS32
select CLKSRC_MMIO
select CLONE_BACKWARDS
select COMMON_CLK
select DMA_DIRECT_OPS
select GENERIC_ATOMIC64
select GENERIC_CPU_DEVICES
select GENERIC_CLOCKEVENTS

1
arch/nios2/Kconfig
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@ -4,7 +4,6 @@ config NIOS2
select ARCH_HAS_SYNC_DMA_FOR_CPU
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
select ARCH_NO_SWAP
select DMA_DIRECT_OPS
select TIMER_OF
select GENERIC_ATOMIC64
select GENERIC_CLOCKEVENTS

1
arch/openrisc/Kconfig
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@ -7,7 +7,6 @@
config OPENRISC
def_bool y
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
select DMA_DIRECT_OPS
select OF
select OF_EARLY_FLATTREE
select IRQ_DOMAIN

1
arch/parisc/Kconfig
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@ -185,7 +185,6 @@ config PA11
depends on PA7000 || PA7100LC || PA7200 || PA7300LC
select ARCH_HAS_SYNC_DMA_FOR_CPU
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
select DMA_DIRECT_OPS
select DMA_NONCOHERENT_CACHE_SYNC
config PREFETCH

1
arch/riscv/Kconfig
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@ -19,7 +19,6 @@ config RISCV
select ARCH_WANT_FRAME_POINTERS
select CLONE_BACKWARDS
select COMMON_CLK
select DMA_DIRECT_OPS
select GENERIC_CLOCKEVENTS
select GENERIC_CPU_DEVICES
select GENERIC_IRQ_SHOW

1
arch/s390/Kconfig
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@ -139,7 +139,6 @@ config S390
select HAVE_COPY_THREAD_TLS
select HAVE_DEBUG_KMEMLEAK
select HAVE_DMA_CONTIGUOUS
select DMA_DIRECT_OPS
select HAVE_DYNAMIC_FTRACE
select HAVE_DYNAMIC_FTRACE_WITH_REGS
select HAVE_EFFICIENT_UNALIGNED_ACCESS

1
arch/sh/Kconfig
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@ -7,7 +7,6 @@ config SUPERH
select ARCH_NO_COHERENT_DMA_MMAP if !MMU
select HAVE_PATA_PLATFORM
select CLKDEV_LOOKUP
select DMA_DIRECT_OPS
select HAVE_IDE if HAS_IOPORT_MAP
select HAVE_MEMBLOCK_NODE_MAP
select ARCH_DISCARD_MEMBLOCK

1
arch/sparc/Kconfig
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@ -48,7 +48,6 @@ config SPARC
config SPARC32
def_bool !64BIT
select ARCH_HAS_SYNC_DMA_FOR_CPU
select DMA_DIRECT_OPS
select GENERIC_ATOMIC64
select CLZ_TAB
select HAVE_UID16

1
arch/unicore32/Kconfig
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@ -4,7 +4,6 @@ config UNICORE32
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select DMA_DIRECT_OPS
select HAVE_GENERIC_DMA_COHERENT
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_BZIP2

1
arch/x86/Kconfig
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@ -89,7 +89,6 @@ config X86
select CLOCKSOURCE_VALIDATE_LAST_CYCLE
select CLOCKSOURCE_WATCHDOG
select DCACHE_WORD_ACCESS
select DMA_DIRECT_OPS
select EDAC_ATOMIC_SCRUB
select EDAC_SUPPORT
select GENERIC_CLOCKEVENTS

1
arch/xtensa/Kconfig
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@ -9,7 +9,6 @@ config XTENSA
select BUILDTIME_EXTABLE_SORT
select CLONE_BACKWARDS
select COMMON_CLK
select DMA_DIRECT_OPS
select DMA_REMAP if MMU
select GENERIC_ATOMIC64
select GENERIC_CLOCKEVENTS

7
kernel/dma/Kconfig
View File

@ -35,13 +35,8 @@ config ARCH_HAS_DMA_COHERENT_TO_PFN
config ARCH_HAS_DMA_MMAP_PGPROT
bool
config DMA_DIRECT_OPS
bool
depends on HAS_DMA
config DMA_NONCOHERENT_CACHE_SYNC
bool
depends on DMA_DIRECT_OPS
config DMA_VIRT_OPS
bool
@ -49,7 +44,6 @@ config DMA_VIRT_OPS
config SWIOTLB
bool
select DMA_DIRECT_OPS
select NEED_DMA_MAP_STATE
config DMA_REMAP
@ -58,5 +52,4 @@ config DMA_REMAP
config DMA_DIRECT_REMAP
bool
depends on DMA_DIRECT_OPS
select DMA_REMAP

3
kernel/dma/Makefile
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@ -1,9 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_HAS_DMA) += mapping.o
obj-$(CONFIG_HAS_DMA) += mapping.o direct.o
obj-$(CONFIG_DMA_CMA) += contiguous.o
obj-$(CONFIG_HAVE_GENERIC_DMA_COHERENT) += coherent.o
obj-$(CONFIG_DMA_DIRECT_OPS) += direct.o
obj-$(CONFIG_DMA_VIRT_OPS) += virt.o
obj-$(CONFIG_DMA_API_DEBUG) += debug.o
obj-$(CONFIG_SWIOTLB) += swiotlb.o