A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 19:21:31 -04:00
Code Issues Projects Releases Packages Wiki Activity

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx

Browse source 
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: (24 commits)
  I/OAT: I/OAT version 3.0 support
  I/OAT: tcp_dma_copybreak default value dependent on I/OAT version
  I/OAT: Add watchdog/reset functionality to ioatdma
  iop_adma: cleanup iop_chan_xor_slot_count
  iop_adma: document how to calculate the minimum descriptor pool size
  iop_adma: directly reclaim descriptors on allocation failure
  async_tx: make async_tx_test_ack a boolean routine
  async_tx: remove depend_tx from async_tx_sync_epilog
  async_tx: export async_tx_quiesce
  async_tx: fix handling of the "out of descriptor" condition in async_xor
  async_tx: ensure the xor destination buffer remains dma-mapped
  async_tx: list_for_each_entry_rcu() cleanup
  dmaengine: Driver for the Synopsys DesignWare DMA controller
  dmaengine: Add slave DMA interface
  dmaengine: add DMA_COMPL_SKIP_{SRC,DEST}_UNMAP flags to control dma unmap
  dmaengine: Add dma_client parameter to device_alloc_chan_resources
  dmatest: Simple DMA memcpy test client
  dmaengine: DMA engine driver for Marvell XOR engine
  iop-adma: fix platform driver hotplug/coldplug
  dmaengine: track the number of clients using a channel
  ...

Fixed up conflict in drivers/dca/dca-sysfs.c manually
This commit is contained in:
Linus Torvalds 2008-07-23 12:03:18 -07:00
commit 5554b35933
33 changed files with 4590 additions and 339 deletions
Download patch file Download diff file Expand all files Collapse all files

133
drivers/dca/dca-core.c
View file

@ -28,13 +28,29 @@
#include <linux/device.h>
#include <linux/dca.h>
MODULE_LICENSE("GPL");
#define DCA_VERSION "1.4"
/* For now we're assuming a single, global, DCA provider for the system. */
MODULE_VERSION(DCA_VERSION);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Intel Corporation");
static DEFINE_SPINLOCK(dca_lock);
static struct dca_provider *global_dca = NULL;
static LIST_HEAD(dca_providers);
static struct dca_provider *dca_find_provider_by_dev(struct device *dev)
{
struct dca_provider *dca, *ret = NULL;
list_for_each_entry(dca, &dca_providers, node) {
if ((!dev) || (dca->ops->dev_managed(dca, dev))) {
ret = dca;
break;
}
}
return ret;
}
/**
* dca_add_requester - add a dca client to the list
@ -42,25 +58,39 @@ static struct dca_provider *global_dca = NULL;
*/
int dca_add_requester(struct device *dev)
{
int err, slot;
struct dca_provider *dca;
int err, slot = -ENODEV;
if (!global_dca)
return -ENODEV;
if (!dev)
return -EFAULT;
spin_lock(&dca_lock);
slot = global_dca->ops->add_requester(global_dca, dev);
spin_unlock(&dca_lock);
if (slot < 0)
return slot;
err = dca_sysfs_add_req(global_dca, dev, slot);
/* check if the requester has not been added already */
dca = dca_find_provider_by_dev(dev);
if (dca) {
spin_unlock(&dca_lock);
return -EEXIST;
}
list_for_each_entry(dca, &dca_providers, node) {
slot = dca->ops->add_requester(dca, dev);
if (slot >= 0)
break;
}
if (slot < 0) {
spin_unlock(&dca_lock);
return slot;
}
err = dca_sysfs_add_req(dca, dev, slot);
if (err) {
spin_lock(&dca_lock);
global_dca->ops->remove_requester(global_dca, dev);
dca->ops->remove_requester(dca, dev);
spin_unlock(&dca_lock);
return err;
}
spin_unlock(&dca_lock);
return 0;
}
EXPORT_SYMBOL_GPL(dca_add_requester);
@ -71,30 +101,78 @@ EXPORT_SYMBOL_GPL(dca_add_requester);
*/
int dca_remove_requester(struct device *dev)
{
struct dca_provider *dca;
int slot;
if (!global_dca)
return -ENODEV;
if (!dev)
return -EFAULT;
spin_lock(&dca_lock);
slot = global_dca->ops->remove_requester(global_dca, dev);
spin_unlock(&dca_lock);
if (slot < 0)
dca = dca_find_provider_by_dev(dev);
if (!dca) {
spin_unlock(&dca_lock);
return -ENODEV;
}
slot = dca->ops->remove_requester(dca, dev);
if (slot < 0) {
spin_unlock(&dca_lock);
return slot;
}
dca_sysfs_remove_req(global_dca, slot);
dca_sysfs_remove_req(dca, slot);
spin_unlock(&dca_lock);
return 0;
}
EXPORT_SYMBOL_GPL(dca_remove_requester);
/**
* dca_get_tag - return the dca tag for the given cpu
* dca_common_get_tag - return the dca tag (serves both new and old api)
* @dev - the device that wants dca service
* @cpu - the cpuid as returned by get_cpu()
*/
u8 dca_common_get_tag(struct device *dev, int cpu)
{
struct dca_provider *dca;
u8 tag;
spin_lock(&dca_lock);
dca = dca_find_provider_by_dev(dev);
if (!dca) {
spin_unlock(&dca_lock);
return -ENODEV;
}
tag = dca->ops->get_tag(dca, dev, cpu);
spin_unlock(&dca_lock);
return tag;
}
/**
* dca3_get_tag - return the dca tag to the requester device
* for the given cpu (new api)
* @dev - the device that wants dca service
* @cpu - the cpuid as returned by get_cpu()
*/
u8 dca3_get_tag(struct device *dev, int cpu)
{
if (!dev)
return -EFAULT;
return dca_common_get_tag(dev, cpu);
}
EXPORT_SYMBOL_GPL(dca3_get_tag);
/**
* dca_get_tag - return the dca tag for the given cpu (old api)
* @cpu - the cpuid as returned by get_cpu()
*/
u8 dca_get_tag(int cpu)
{
if (!global_dca)
return -ENODEV;
return global_dca->ops->get_tag(global_dca, cpu);
struct device *dev = NULL;
return dca_common_get_tag(dev, cpu);
}
EXPORT_SYMBOL_GPL(dca_get_tag);
@ -140,12 +218,10 @@ int register_dca_provider(struct dca_provider *dca, struct device *dev)
{
int err;
if (global_dca)
return -EEXIST;
err = dca_sysfs_add_provider(dca, dev);
if (err)
return err;
global_dca = dca;
list_add(&dca->node, &dca_providers);
blocking_notifier_call_chain(&dca_provider_chain,
DCA_PROVIDER_ADD, NULL);
return 0;
@ -158,11 +234,9 @@ EXPORT_SYMBOL_GPL(register_dca_provider);
*/
void unregister_dca_provider(struct dca_provider *dca)
{
if (!global_dca)
return;
blocking_notifier_call_chain(&dca_provider_chain,
DCA_PROVIDER_REMOVE, NULL);
global_dca = NULL;
list_del(&dca->node);
dca_sysfs_remove_provider(dca);
}
EXPORT_SYMBOL_GPL(unregister_dca_provider);
@ -187,6 +261,7 @@ EXPORT_SYMBOL_GPL(dca_unregister_notify);
static int __init dca_init(void)
{
printk(KERN_ERR "dca service started, version %s\n", DCA_VERSION);
return dca_sysfs_init();
}

3
drivers/dca/dca-sysfs.c
View file

@ -13,10 +13,11 @@ static spinlock_t dca_idr_lock;
int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot)
{
struct device *cd;
static int req_count;
cd = device_create_drvdata(dca_class, dca->cd,
MKDEV(0, slot + 1), NULL,
"requester%d", slot);
"requester%d", req_count++);
if (IS_ERR(cd))
return PTR_ERR(cd);
return 0;