linux-imx

#include <linux/rcupdate.h>

#include <linux/mutex.h>

#include <linux/jiffies.h>

#include <linux/rculist.h>

#include <linux/idr.h>

#include <linux/slab.h>

#include <linux/acpi.h>

#include <linux/acpi_dma.h>

#include <linux/of_dma.h>

#include <linux/mempool.h>

​

static DEFINE_MUTEX(dma_list_mutex);

static DEFINE_IDA(dma_ida);

static LIST_HEAD(dma_device_list);

static long dmaengine_ref_count;

​

/* --- sysfs implementation --- */

​

/**

 * dev_to_dma_chan - convert a device pointer to the its sysfs container object

    rcu_read_unlock();

}

EXPORT_SYMBOL(dma_issue_pending_all);

​

/**

 * dma_chan_is_local - returns true if the channel is in the same numa-node as the cpu

 */

static bool dma_chan_is_local(struct dma_chan *chan, int cpu)

{

    int node = dev_to_node(chan->device->dev);

}

​

/**

 * min_chan - returns the channel with min count and in the same numa-node as the cpu

 * @cap: capability to match

 * @cpu: cpu index which the channel should be close to

 *

 * If some channels are close to the given cpu, the one with the lowest

 * reference count is returned. Otherwise, cpu is ignored and only the

 * reference count is taken into account.