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0d71675f87
linux/Documentation/core-api
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Christoph Hellwig 0d71675f87 dma-mapping: add a new dma_alloc_noncoherent API 
Add a new API to allocate and free memory that is guaranteed to be
addressable by a device, but which potentially is not cache coherent
for DMA.

To transfer ownership to and from the device, the existing streaming
DMA API calls dma_sync_single_for_device and dma_sync_single_for_cpu
must be used.

For now the new calls are implemented on top of dma_alloc_attrs just
like the old-noncoherent API, but once all drivers are switched to
the new API it will be replaced with a better working implementation
that is available on all architectures.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-09-25 06:20:43 +02:00
..
irq docs: add IRQ documentation at the core-api book 2020-05-15 12:00:56 -06:00
assoc_array.rst Documentation: Use "while" instead of "whilst" 2018-11-20 09:30:43 -07:00
atomic_ops.rst locking/atomics/Documentation: Describe atomic_set() as a write operation 2018-07-17 09:30:31 +02:00
boot-time-mm.rst docs/boot-time-mm: remove bootmem documentation 2018-10-31 08:54:16 -07:00
bus-virt-phys-mapping.rst docs: move other kAPI documents to core-api 2020-06-26 11:33:42 -06:00
cachetlb.rst mm: remove map_vm_range 2020-06-02 10:59:11 -07:00
circular-buffers.rst doc: Remove ".vnet" from paulmck email addresses 2019-05-28 09:02:57 -07:00
cpu_hotplug.rst powerpc updates for 5.9 2020-08-07 10:33:50 -07:00
debug-objects.rst doc: debugobjects: actually pull in the kerneldoc comments 2016-11-29 14:44:14 -07:00
debugging-via-ohci1394.rst docs: debugging-via-ohci1394.txt: add it to the core-api book 2020-05-15 11:59:17 -06:00
dma-api-howto.rst docs: move DMA kAPI to Documentation/core-api 2020-05-15 11:51:54 -06:00
dma-api.rst dma-mapping: add a new dma_alloc_noncoherent API 2020-09-25 06:20:43 +02:00
dma-attributes.rst docs: move DMA kAPI to Documentation/core-api 2020-05-15 11:51:54 -06:00
dma-isa-lpc.rst docs: fix references for DMA*.txt files 2020-06-26 10:01:32 -06:00
errseq.rst errseq: Add to documentation tree 2018-01-01 12:40:27 -07:00
genalloc.rst lib/genalloc.c: rename addr_in_gen_pool to gen_pool_has_addr 2019-12-04 19:44:13 -08:00
generic-radix-tree.rst generic radix trees 2019-03-12 10:04:02 -07:00
genericirq.rst docs: Add request_irq() documentation 2019-11-18 12:40:59 -07:00
gfp_mask-from-fs-io.rst docs: core-api/gfp_mask-from-fs-io: add a label for cross-referencing 2018-09-20 11:02:32 -06:00
idr.rst Core-api: Documentation: Replace deprecated :c:func: Usage 2020-08-11 10:26:08 -06:00
index.rst docs: move other kAPI documents to core-api 2020-06-26 11:33:42 -06:00
kernel-api.rst docs/core-api: Remove possibly confusing sub-headings from Bit Operations 2019-12-04 21:20:28 +11:00
kobject.rst kobject: documentation: Replace HTTP links with HTTPS ones 2020-07-13 09:30:41 -06:00
kref.rst docs: move the kref doc into the core-api book 2020-05-15 12:02:19 -06:00
librs.rst docs-rst: convert librs book to ReST 2017-05-16 08:44:16 -03:00
local_ops.rst timer: Remove init_timer() interface 2017-11-21 15:57:09 -08:00
memory-allocation.rst docs/core-api: memory-allocation: describe reclaim behaviour 2020-07-23 14:09:09 -06:00
memory-hotplug.rst docs/core-api: memory-hotplug: add some details about locking internals 2018-10-12 11:14:19 -06:00
mm-api.rst mm: add pagemap.h to the fine documentation 2020-04-02 09:35:29 -07:00
packing.rst docs: packing: move it to core-api book and adjust markups 2019-07-31 13:30:01 -06:00
padata.rst padata: fold padata_alloc_possible() into padata_alloc() 2020-07-23 17:34:18 +10:00
pin_user_pages.rst docs: mm/gup: minor documentation update 2020-06-26 00:27:37 -07:00
printk-basics.rst Documentation: printk-basics: eliminate duplicated word 2020-07-13 09:44:05 -06:00
printk-formats.rst It's been a busy cycle for documentation - hopefully the busiest for a 2020-08-04 22:47:54 -07:00
protection-keys.rst x86/Kconfig: Update config and kernel doc for MPK feature on AMD 2020-05-28 18:27:40 +02:00
rbtree.rst Replace HTTP links with HTTPS ones: documentation 2020-06-08 09:30:19 -06:00
refcount-vs-atomic.rst docs: remove :c:func: from refcount-vs-atomic.rst 2019-10-07 09:08:56 -06:00
symbol-namespaces.rst scripts/nsdeps: support nsdeps for external module builds 2019-11-11 20:10:01 +09:00
this_cpu_ops.rst docs: move other kAPI documents to core-api 2020-06-26 11:33:42 -06:00
timekeeping.rst docs: timekeeping: Use correct prototype for deprecated functions 2020-04-15 14:48:26 -06:00
tracepoint.rst doc: Sphinxify the tracepoint docbook 2016-11-29 14:44:23 -07:00
unaligned-memory-access.rst docs: move other kAPI documents to core-api 2020-06-26 11:33:42 -06:00
workqueue.rst Documentation: core-api: minor workqueue.rst cleanups 2017-09-18 17:29:27 -07:00
xarray.rst XArray: Add xa_for_each_range 2020-01-17 22:33:37 -05:00