diff options
| -rw-r--r-- | Documentation/driver-api/infrastructure.rst | 4 | ||||
| -rw-r--r-- | MAINTAINERS | 9 | ||||
| -rw-r--r-- | drivers/base/Makefile | 3 | ||||
| -rw-r--r-- | include/linux/dma-contiguous.h | 2 | ||||
| -rw-r--r-- | init/Kconfig | 4 | ||||
| -rw-r--r-- | kernel/Makefile | 1 | ||||
| -rw-r--r-- | kernel/dma/Kconfig | 50 | ||||
| -rw-r--r-- | kernel/dma/Makefile | 11 | ||||
| -rw-r--r-- | kernel/dma/coherent.c (renamed from drivers/base/dma-coherent.c) | 0 | ||||
| -rw-r--r-- | kernel/dma/contiguous.c (renamed from drivers/base/dma-contiguous.c) | 0 | ||||
| -rw-r--r-- | kernel/dma/debug.c (renamed from lib/dma-debug.c) | 0 | ||||
| -rw-r--r-- | kernel/dma/direct.c (renamed from lib/dma-direct.c) | 0 | ||||
| -rw-r--r-- | kernel/dma/mapping.c (renamed from drivers/base/dma-mapping.c) | 2 | ||||
| -rw-r--r-- | kernel/dma/noncoherent.c (renamed from lib/dma-noncoherent.c) | 0 | ||||
| -rw-r--r-- | kernel/dma/swiotlb.c (renamed from lib/swiotlb.c) | 0 | ||||
| -rw-r--r-- | kernel/dma/virt.c (renamed from lib/dma-virt.c) | 2 | ||||
| -rw-r--r-- | lib/Kconfig | 47 | ||||
| -rw-r--r-- | lib/Makefile | 6 |
18 files changed, 69 insertions, 72 deletions
diff --git a/Documentation/driver-api/infrastructure.rst b/Documentation/driver-api/infrastructure.rst index bee1b9a1702f..6172f3cc3d0b 100644 --- a/Documentation/driver-api/infrastructure.rst +++ b/Documentation/driver-api/infrastructure.rst @@ -49,10 +49,10 @@ Device Drivers Base Device Drivers DMA Management ----------------------------- -.. kernel-doc:: drivers/base/dma-coherent.c +.. kernel-doc:: kernel/dma/coherent.c :export: -.. kernel-doc:: drivers/base/dma-mapping.c +.. kernel-doc:: kernel/dma/mapping.c :export: Device drivers PnP support diff --git a/MAINTAINERS b/MAINTAINERS index 624c3fd11d04..1d7d648d8aad 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4360,12 +4360,7 @@ L: iommu@lists.linux-foundation.org T: git git://git.infradead.org/users/hch/dma-mapping.git W: http://git.infradead.org/users/hch/dma-mapping.git S: Supported -F: lib/dma-debug.c -F: lib/dma-direct.c -F: lib/dma-noncoherent.c -F: lib/dma-virt.c -F: drivers/base/dma-mapping.c -F: drivers/base/dma-coherent.c +F: kernel/dma/ F: include/asm-generic/dma-mapping.h F: include/linux/dma-direct.h F: include/linux/dma-mapping.h @@ -13648,7 +13643,7 @@ M: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> L: iommu@lists.linux-foundation.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb.git S: Supported -F: lib/swiotlb.c +F: kernel/dma/swiotlb.c F: arch/*/kernel/pci-swiotlb.c F: include/linux/swiotlb.h diff --git a/drivers/base/Makefile b/drivers/base/Makefile index b074f242a435..704f44295810 100644 --- a/drivers/base/Makefile +++ b/drivers/base/Makefile @@ -8,10 +8,7 @@ obj-y := component.o core.o bus.o dd.o syscore.o \ topology.o container.o property.o cacheinfo.o \ devcon.o obj-$(CONFIG_DEVTMPFS) += devtmpfs.o -obj-$(CONFIG_DMA_CMA) += dma-contiguous.o obj-y += power/ -obj-$(CONFIG_HAS_DMA) += dma-mapping.o -obj-$(CONFIG_HAVE_GENERIC_DMA_COHERENT) += dma-coherent.o obj-$(CONFIG_ISA_BUS_API) += isa.o obj-y += firmware_loader/ obj-$(CONFIG_NUMA) += node.o diff --git a/include/linux/dma-contiguous.h b/include/linux/dma-contiguous.h index b67bf6ac907d..3c5a4cb3eb95 100644 --- a/include/linux/dma-contiguous.h +++ b/include/linux/dma-contiguous.h @@ -48,7 +48,7 @@ * CMA should not be used by the device drivers directly. It is * only a helper framework for dma-mapping subsystem. * - * For more information, see kernel-docs in drivers/base/dma-contiguous.c + * For more information, see kernel-docs in kernel/dma/contiguous.c */ #ifdef __KERNEL__ diff --git a/init/Kconfig b/init/Kconfig index 5a52f07259a2..fde3d09e8b27 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1719,10 +1719,6 @@ source "arch/Kconfig" endmenu # General setup -config HAVE_GENERIC_DMA_COHERENT - bool - default n - config RT_MUTEXES bool diff --git a/kernel/Makefile b/kernel/Makefile index d2001624fe7a..04bc07c2b42a 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -41,6 +41,7 @@ obj-y += printk/ obj-y += irq/ obj-y += rcu/ obj-y += livepatch/ +obj-y += dma/ obj-$(CONFIG_CHECKPOINT_RESTORE) += kcmp.o obj-$(CONFIG_FREEZER) += freezer.o diff --git a/kernel/dma/Kconfig b/kernel/dma/Kconfig new file mode 100644 index 000000000000..9bd54304446f --- /dev/null +++ b/kernel/dma/Kconfig @@ -0,0 +1,50 @@ + +config HAS_DMA + bool + depends on !NO_DMA + default y + +config NEED_SG_DMA_LENGTH + bool + +config NEED_DMA_MAP_STATE + bool + +config ARCH_DMA_ADDR_T_64BIT + def_bool 64BIT || PHYS_ADDR_T_64BIT + +config HAVE_GENERIC_DMA_COHERENT + bool + +config ARCH_HAS_SYNC_DMA_FOR_DEVICE + bool + +config ARCH_HAS_SYNC_DMA_FOR_CPU + bool + select NEED_DMA_MAP_STATE + +config DMA_DIRECT_OPS + bool + depends on HAS_DMA + +config DMA_NONCOHERENT_OPS + bool + depends on HAS_DMA + select DMA_DIRECT_OPS + +config DMA_NONCOHERENT_MMAP + bool + depends on DMA_NONCOHERENT_OPS + +config DMA_NONCOHERENT_CACHE_SYNC + bool + depends on DMA_NONCOHERENT_OPS + +config DMA_VIRT_OPS + bool + depends on HAS_DMA + +config SWIOTLB + bool + select DMA_DIRECT_OPS + select NEED_DMA_MAP_STATE diff --git a/kernel/dma/Makefile b/kernel/dma/Makefile new file mode 100644 index 000000000000..6de44e4eb454 --- /dev/null +++ b/kernel/dma/Makefile @@ -0,0 +1,11 @@ +# SPDX-License-Identifier: GPL-2.0 + +obj-$(CONFIG_HAS_DMA) += mapping.o +obj-$(CONFIG_DMA_CMA) += contiguous.o +obj-$(CONFIG_HAVE_GENERIC_DMA_COHERENT) += coherent.o +obj-$(CONFIG_DMA_DIRECT_OPS) += direct.o +obj-$(CONFIG_DMA_NONCOHERENT_OPS) += noncoherent.o +obj-$(CONFIG_DMA_VIRT_OPS) += virt.o +obj-$(CONFIG_DMA_API_DEBUG) += debug.o +obj-$(CONFIG_SWIOTLB) += swiotlb.o + diff --git a/drivers/base/dma-coherent.c b/kernel/dma/coherent.c index 597d40893862..597d40893862 100644 --- a/drivers/base/dma-coherent.c +++ b/kernel/dma/coherent.c diff --git a/drivers/base/dma-contiguous.c b/kernel/dma/contiguous.c index d987dcd1bd56..d987dcd1bd56 100644 --- a/drivers/base/dma-contiguous.c +++ b/kernel/dma/contiguous.c diff --git a/lib/dma-debug.c b/kernel/dma/debug.c index c007d25bee09..c007d25bee09 100644 --- a/lib/dma-debug.c +++ b/kernel/dma/debug.c diff --git a/lib/dma-direct.c b/kernel/dma/direct.c index 8be8106270c2..8be8106270c2 100644 --- a/lib/dma-direct.c +++ b/kernel/dma/direct.c diff --git a/drivers/base/dma-mapping.c b/kernel/dma/mapping.c index f831a582209c..d2a92ddaac4d 100644 --- a/drivers/base/dma-mapping.c +++ b/kernel/dma/mapping.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 /* - * drivers/base/dma-mapping.c - arch-independent dma-mapping routines + * arch-independent dma-mapping routines * * Copyright (c) 2006 SUSE Linux Products GmbH * Copyright (c) 2006 Tejun Heo <teheo@suse.de> diff --git a/lib/dma-noncoherent.c b/kernel/dma/noncoherent.c index 79e9a757387f..79e9a757387f 100644 --- a/lib/dma-noncoherent.c +++ b/kernel/dma/noncoherent.c diff --git a/lib/swiotlb.c b/kernel/dma/swiotlb.c index 04b68d9dffac..04b68d9dffac 100644 --- a/lib/swiotlb.c +++ b/kernel/dma/swiotlb.c diff --git a/lib/dma-virt.c b/kernel/dma/virt.c index 8e61a02ef9ca..631ddec4b60a 100644 --- a/lib/dma-virt.c +++ b/kernel/dma/virt.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 /* - * lib/dma-virt.c - * * DMA operations that map to virtual addresses without flushing memory. */ #include <linux/export.h> diff --git a/lib/Kconfig b/lib/Kconfig index e34b04b56057..706836ec314d 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -420,60 +420,15 @@ config HAS_IOPORT_MAP depends on HAS_IOMEM && !NO_IOPORT_MAP default y -config HAS_DMA - bool - depends on !NO_DMA - default y +source "kernel/dma/Kconfig" config SGL_ALLOC bool default n -config NEED_SG_DMA_LENGTH - bool - -config NEED_DMA_MAP_STATE - bool - -config ARCH_DMA_ADDR_T_64BIT - def_bool 64BIT || PHYS_ADDR_T_64BIT - config IOMMU_HELPER bool -config ARCH_HAS_SYNC_DMA_FOR_DEVICE - bool - -config ARCH_HAS_SYNC_DMA_FOR_CPU - bool - select NEED_DMA_MAP_STATE - -config DMA_DIRECT_OPS - bool - depends on HAS_DMA - -config DMA_NONCOHERENT_OPS - bool - depends on HAS_DMA - select DMA_DIRECT_OPS - -config DMA_NONCOHERENT_MMAP - bool - depends on DMA_NONCOHERENT_OPS - -config DMA_NONCOHERENT_CACHE_SYNC - bool - depends on DMA_NONCOHERENT_OPS - -config DMA_VIRT_OPS - bool - depends on HAS_DMA - -config SWIOTLB - bool - select DMA_DIRECT_OPS - select NEED_DMA_MAP_STATE - config CHECK_SIGNATURE bool diff --git a/lib/Makefile b/lib/Makefile index 956b320292fe..8153fdab287f 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -29,9 +29,6 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \ lib-$(CONFIG_PRINTK) += dump_stack.o lib-$(CONFIG_MMU) += ioremap.o lib-$(CONFIG_SMP) += cpumask.o -lib-$(CONFIG_DMA_DIRECT_OPS) += dma-direct.o -lib-$(CONFIG_DMA_NONCOHERENT_OPS) += dma-noncoherent.o -lib-$(CONFIG_DMA_VIRT_OPS) += dma-virt.o lib-y += kobject.o klist.o obj-y += lockref.o @@ -148,7 +145,6 @@ obj-$(CONFIG_SMP) += percpu_counter.o obj-$(CONFIG_AUDIT_GENERIC) += audit.o obj-$(CONFIG_AUDIT_COMPAT_GENERIC) += compat_audit.o -obj-$(CONFIG_SWIOTLB) += swiotlb.o obj-$(CONFIG_IOMMU_HELPER) += iommu-helper.o obj-$(CONFIG_FAULT_INJECTION) += fault-inject.o obj-$(CONFIG_NOTIFIER_ERROR_INJECTION) += notifier-error-inject.o @@ -169,8 +165,6 @@ obj-$(CONFIG_NLATTR) += nlattr.o obj-$(CONFIG_LRU_CACHE) += lru_cache.o -obj-$(CONFIG_DMA_API_DEBUG) += dma-debug.o - obj-$(CONFIG_GENERIC_CSUM) += checksum.o obj-$(CONFIG_GENERIC_ATOMIC64) += atomic64.o |
