#include <linux/dma-mapping.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/device.h>
#include <linux/dmaengine.h>
#include <linux/hardirq.h>
#include <linux/spinlock.h>
#include <linux/percpu.h>
#include <linux/rcupdate.h>
#include <linux/mutex.h>
#include <linux/jiffies.h>
#include <linux/rculist.h>
#include <linux/idr.h>
#include <linux/slab.h>
Go to the source code of this file.
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| enum dma_status | dma_sync_wait (struct dma_chan *chan, dma_cookie_t cookie) |
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| | EXPORT_SYMBOL (dma_sync_wait) |
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| | arch_initcall (dma_channel_table_init) |
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| struct dma_chan * | dma_find_channel (enum dma_transaction_type tx_type) |
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| | EXPORT_SYMBOL (dma_find_channel) |
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| struct dma_chan * | net_dma_find_channel (void) |
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| | EXPORT_SYMBOL (net_dma_find_channel) |
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| void | dma_issue_pending_all (void) |
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| | EXPORT_SYMBOL (dma_issue_pending_all) |
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| struct dma_chan * | __dma_request_channel (dma_cap_mask_t *mask, dma_filter_fn fn, void *fn_param) |
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| | EXPORT_SYMBOL_GPL (__dma_request_channel) |
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| void | dma_release_channel (struct dma_chan *chan) |
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| | EXPORT_SYMBOL_GPL (dma_release_channel) |
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| void | dmaengine_get (void) |
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| | EXPORT_SYMBOL (dmaengine_get) |
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| void | dmaengine_put (void) |
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| | EXPORT_SYMBOL (dmaengine_put) |
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| int | dma_async_device_register (struct dma_device *device) |
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| | EXPORT_SYMBOL (dma_async_device_register) |
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| void | dma_async_device_unregister (struct dma_device *device) |
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| | EXPORT_SYMBOL (dma_async_device_unregister) |
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| dma_cookie_t | dma_async_memcpy_buf_to_buf (struct dma_chan *chan, void *dest, void *src, size_t len) |
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| | EXPORT_SYMBOL (dma_async_memcpy_buf_to_buf) |
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| dma_cookie_t | dma_async_memcpy_buf_to_pg (struct dma_chan *chan, struct page *page, unsigned int offset, void *kdata, size_t len) |
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| | EXPORT_SYMBOL (dma_async_memcpy_buf_to_pg) |
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| dma_cookie_t | dma_async_memcpy_pg_to_pg (struct dma_chan *chan, struct page *dest_pg, unsigned int dest_off, struct page *src_pg, unsigned int src_off, size_t len) |
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| | EXPORT_SYMBOL (dma_async_memcpy_pg_to_pg) |
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| void | dma_async_tx_descriptor_init (struct dma_async_tx_descriptor *tx, struct dma_chan *chan) |
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| | EXPORT_SYMBOL (dma_async_tx_descriptor_init) |
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| enum dma_status | dma_wait_for_async_tx (struct dma_async_tx_descriptor *tx) |
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| | EXPORT_SYMBOL_GPL (dma_wait_for_async_tx) |
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| void | dma_run_dependencies (struct dma_async_tx_descriptor *tx) |
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| | EXPORT_SYMBOL_GPL (dma_run_dependencies) |
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| | arch_initcall (dma_bus_init) |
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| #define pr_fmt |
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fmt | ) |
KBUILD_MODNAME ": " fmt |
| arch_initcall |
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dma_channel_table_init |
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| arch_initcall |
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dma_bus_init |
| ) |
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dma_async_device_unregister - unregister a DMA device : &dma_device
This routine is called by dma driver exit routines, dmaengine holds module references to prevent it being called while channels are in use.
Definition at line 834 of file dmaengine.c.
dma_async_memcpy_buf_to_buf - offloaded copy between virtual addresses : DMA channel to offload copy to : destination address (virtual) : source address (virtual) : length
Both and must be mappable to a bus address according to the DMA mapping API rules for streaming mappings. Both and must stay memory resident (kernel memory or locked user space pages).
Definition at line 869 of file dmaengine.c.
dma_async_memcpy_pg_to_pg - offloaded copy from page to page : DMA channel to offload copy to : destination page : offset in page to copy to : source page : offset in page to copy from : length
Both / and / must be mappable to a bus address according to the DMA mapping API rules for streaming mappings. Both / and / must stay memory resident (kernel memory or locked user space pages).
Definition at line 964 of file dmaengine.c.
dma_find_channel - find a channel to carry out the operation : transaction type
Definition at line 331 of file dmaengine.c.
dma_issue_pending_all - flush all pending operations across all channels
Definition at line 354 of file dmaengine.c.
dmaengine_get - register interest in dma_channels
Definition at line 565 of file dmaengine.c.
dmaengine_put - let dma drivers be removed when ref_count == 0
Definition at line 603 of file dmaengine.c.
1.8.2