本文整理汇总了C++中dma_pool_free函数的典型用法代码示例。如果您正苦于以下问题：C++ dma_pool_free函数的具体用法？C++ dma_pool_free怎么用？C++ dma_pool_free使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了dma_pool_free函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: usb_malloc
static struct ehci_qh *ehci_qh_alloc(struct ehci_hcd *ehci, gfp_t flags)
{
struct ehci_qh *qh;
dma_addr_t dma;
dma = usb_malloc(sizeof(struct ehci_qh), flags);
if (dma != 0)
qh = (struct ehci_qh *)IO_ADDRESS(dma);
else
qh = (struct ehci_qh *)
dma_pool_alloc(ehci->qh_pool, flags, &dma);
++g_debug_qH_allocated;
if (qh == NULL) {
panic("run out of i-ram for qH allocation\n");
return qh;
}
memset(qh, 0, sizeof *qh);
qh->refcount = 1;
qh->ehci = ehci;
qh->qh_dma = dma;
INIT_LIST_HEAD(&qh->qtd_list);
/* dummy td enables safe urb queuing */
qh->dummy = ehci_qtd_alloc(ehci, flags);
if (qh->dummy == NULL) {
ehci_dbg(ehci, "no dummy td\n");
dma_pool_free(ehci->qh_pool, qh, qh->qh_dma);
qh = NULL;
}
return qh;
}
开发者ID:despierto，项目名称:imx_233_linux，代码行数:32，代码来源:ehci-mem-iram.c
示例2: _hardware_dequeue
/**
* _hardware_dequeue: handles a request at hardware level
* @gadget: gadget
* @mEp: endpoint
*
* This function returns an error code
*/
static int _hardware_dequeue(struct ci13xxx_ep *mEp, struct ci13xxx_req *mReq)
{
if (mReq->req.status != -EALREADY)
return -EINVAL;
if ((TD_STATUS_ACTIVE & mReq->ptr->token) != 0)
return -EBUSY;
if (mReq->zptr) {
if ((TD_STATUS_ACTIVE & mReq->zptr->token) != 0)
return -EBUSY;
dma_pool_free(mEp->td_pool, mReq->zptr, mReq->zdma);
mReq->zptr = NULL;
}
mReq->req.status = 0;
usb_gadget_unmap_request(&mEp->ci->gadget, &mReq->req, mEp->dir);
mReq->req.status = mReq->ptr->token & TD_STATUS;
if ((TD_STATUS_HALTED & mReq->req.status) != 0)
mReq->req.status = -1;
else if ((TD_STATUS_DT_ERR & mReq->req.status) != 0)
mReq->req.status = -1;
else if ((TD_STATUS_TR_ERR & mReq->req.status) != 0)
mReq->req.status = -1;
mReq->req.actual = mReq->ptr->token & TD_TOTAL_BYTES;
mReq->req.actual >>= ffs_nr(TD_TOTAL_BYTES);
mReq->req.actual = mReq->req.length - mReq->req.actual;
mReq->req.actual = mReq->req.status ? 0 : mReq->req.actual;
return mReq->req.actual;
}
开发者ID:AmesianX，项目名称:netlink-mmap，代码行数:41，代码来源:udc.c
示例3: skb_to_vbb
static void *
skb_to_vbb(struct voicebus *vb, struct sk_buff *skb)
{
int res;
struct vbb *vbb;
const int COMMON_HEADER = 30;
dma_addr_t dma_addr;
if (skb->len != (VOICEBUS_SFRAME_SIZE + COMMON_HEADER)) {
dev_warn(&vb->pdev->dev, "Packet of length %d is not the "
"required %d.\n", skb->len,
VOICEBUS_SFRAME_SIZE + COMMON_HEADER);
return NULL;
}
vbb = dma_pool_alloc(vb->pool, GFP_KERNEL, &dma_addr);
if (!vbb)
return NULL;
vbb->dma_addr = dma_addr;
res = skb_copy_bits(skb, COMMON_HEADER, vbb, VOICEBUS_SFRAME_SIZE);
if (res) {
dev_warn(&vb->pdev->dev, "Failed call to skb_copy_bits.\n");
dma_pool_free(vb->pool, vbb, vbb->dma_addr);
return NULL;
}
return vbb;
}
开发者ID:abdulkdr，项目名称:dahdi-linux，代码行数:28，代码来源:voicebus_net.c
示例4: kzalloc
static struct ehci_qh *ehci_qh_alloc (struct ehci_hcd *ehci, gfp_t flags)
{
struct ehci_qh *qh;
dma_addr_t dma;
qh = kzalloc(sizeof *qh, GFP_ATOMIC);
if (!qh)
goto done;
qh->hw = (struct ehci_qh_hw *)
dma_pool_alloc(ehci->qh_pool, flags, &dma);
if (!qh->hw)
goto fail;
memset(qh->hw, 0, sizeof *qh->hw);
qh->refcount = 1;
qh->ehci = ehci;
qh->qh_dma = dma;
// INIT_LIST_HEAD (&qh->qh_list);
INIT_LIST_HEAD (&qh->qtd_list);
/* dummy td enables safe urb queuing */
qh->dummy = ehci_qtd_alloc (ehci, flags);
if (qh->dummy == NULL) {
ehci_dbg (ehci, "no dummy td\n");
goto fail1;
}
done:
return qh;
fail1:
dma_pool_free(ehci->qh_pool, qh->hw, qh->qh_dma);
fail:
kfree(qh);
return NULL;
}
开发者ID:12rafael，项目名称:jellytimekernel，代码行数:33，代码来源:ehci-mem.c
示例5: dma_pool_alloc
static struct ehci_qh *ehci_qh_alloc (struct ehci_hcd *ehci, int flags)
{
struct ehci_qh *qh;
dma_addr_t dma;
qh = (struct ehci_qh *)
dma_pool_alloc (ehci->qh_pool, flags, &dma);
if (!qh)
return qh;
memset (qh, 0, sizeof *qh);
kref_init(&qh->kref, qh_destroy);
qh->ehci = ehci;
qh->qh_dma = dma;
// INIT_LIST_HEAD (&qh->qh_list);
INIT_LIST_HEAD (&qh->qtd_list);
/* dummy td enables safe urb queuing */
qh->dummy = ehci_qtd_alloc (ehci, flags);
if (qh->dummy == 0) {
ehci_dbg (ehci, "no dummy td\n");
dma_pool_free (ehci->qh_pool, qh, qh->qh_dma);
qh = NULL;
}
return qh;
}
开发者ID:FelipeFernandes1988，项目名称:Alice-1121-Modem，代码行数:26，代码来源:ehci-mem.c
示例6: my_init
static int __init my_init(void)
{
/* dma_alloc_coherent method */
printk(KERN_INFO "Loading DMA allocation test module\n");
printk(KERN_INFO "\nTesting dma_alloc_coherent()..........\n\n");
kbuf = dma_alloc_coherent(NULL, size, &handle, GFP_KERNEL);
output(kbuf, handle, size, "This is the dma_alloc_coherent() string");
dma_free_coherent(NULL, size, kbuf, handle);
/* dma_map/unmap_single */
printk(KERN_INFO "\nTesting dma_map_single()................\n\n");
kbuf = kmalloc(size, GFP_KERNEL);
handle = dma_map_single(NULL, kbuf, size, direction);
output(kbuf, handle, size, "This is the dma_map_single() string");
dma_unmap_single(NULL, handle, size, direction);
kfree(kbuf);
/* dma_pool method */
printk(KERN_INFO "\nTesting dma_pool_alloc()..........\n\n");
mypool = dma_pool_create("mypool", NULL, pool_size, pool_align, 0);
kbuf = dma_pool_alloc(mypool, GFP_KERNEL, &handle);
output(kbuf, handle, size, "This is the dma_pool_alloc() string");
dma_pool_free(mypool, kbuf, handle);
dma_pool_destroy(mypool);
return 0;
}
开发者ID:YorkZ，项目名称:docs_utils，代码行数:31，代码来源:lab1_dma.c
示例7: kzalloc
static struct fsl_edma_desc *fsl_edma_alloc_desc(struct fsl_edma_chan *fsl_chan,
int sg_len)
{
struct fsl_edma_desc *fsl_desc;
int i;
fsl_desc = kzalloc(sizeof(*fsl_desc) + sizeof(struct fsl_edma_sw_tcd) * sg_len,
GFP_NOWAIT);
if (!fsl_desc)
return NULL;
fsl_desc->echan = fsl_chan;
fsl_desc->n_tcds = sg_len;
for (i = 0; i < sg_len; i++) {
fsl_desc->tcd[i].vtcd = dma_pool_alloc(fsl_chan->tcd_pool,
GFP_NOWAIT, &fsl_desc->tcd[i].ptcd);
if (!fsl_desc->tcd[i].vtcd)
goto err;
}
return fsl_desc;
err:
while (--i >= 0)
dma_pool_free(fsl_chan->tcd_pool, fsl_desc->tcd[i].vtcd,
fsl_desc->tcd[i].ptcd);
kfree(fsl_desc);
return NULL;
}
开发者ID:3null，项目名称:linux，代码行数:28，代码来源:fsl-edma.c
示例8: stmp3xxx_dma_free_command
int stmp3xxx_dma_free_command(int channel,
struct stmp3xxx_dma_descriptor *descriptor)
{
int err = 0;
if (!IS_VALID_CHANNEL(channel)) {
err = -ENODEV;
goto out;
}
if (!IS_USED(channel)) {
err = -EBUSY;
goto out;
}
/* Return the command memory to the pool */
dma_pool_free(channels[channel].pool, descriptor->command,
descriptor->handle);
/* Initialise descriptor so we're not tempted to use it */
descriptor->command = NULL;
descriptor->handle = 0;
descriptor->virtual_buf_ptr = NULL;
descriptor->next_descr = NULL;
WARN_ON(err);
out:
return err;
}
开发者ID:0x0f，项目名称:android-tegra-nv-2.6.39，代码行数:28，代码来源:dma.c
示例9: destroy_hdlc_queues
static void destroy_hdlc_queues(struct port *port)
{
int i;
if (port->desc_tab) {
for (i = 0; i < RX_DESCS; i++) {
struct desc *desc = rx_desc_ptr(port, i);
buffer_t *buff = port->rx_buff_tab[i];
if (buff) {
dma_unmap_single(&port->netdev->dev,
desc->data, RX_SIZE,
DMA_FROM_DEVICE);
free_buffer(buff);
}
}
for (i = 0; i < TX_DESCS; i++) {
struct desc *desc = tx_desc_ptr(port, i);
buffer_t *buff = port->tx_buff_tab[i];
if (buff) {
dma_unmap_tx(port, desc);
free_buffer(buff);
}
}
dma_pool_free(dma_pool, port->desc_tab, port->desc_tab_phys);
port->desc_tab = NULL;
}
if (!ports_open && dma_pool) {
dma_pool_destroy(dma_pool);
dma_pool = NULL;
}
}
开发者ID:mjduddin，项目名称:B14CKB1RD_kernel_m8，代码行数:32，代码来源:ixp4xx_hss.c
示例10: hcd_buffer_free
void hcd_buffer_free(
struct usb_bus *bus,
size_t size,
void *addr,
dma_addr_t dma
)
{
struct usb_hcd *hcd = bus_to_hcd(bus);
int i;
if (!addr)
return;
if (!bus->controller->dma_mask &&
!(hcd->driver->flags & HCD_LOCAL_MEM)) {
kfree(addr);
return;
}
for (i = 0; i < HCD_BUFFER_POOLS; i++) {
if (size <= pool_max [i]) {
dma_pool_free(hcd->pool [i], addr, dma);
return;
}
}
dma_free_coherent(hcd->self.controller, size, addr, dma);
}
开发者ID:458941968，项目名称:mini2440-kernel-2.6.29，代码行数:27，代码来源:buffer.c
示例11: felica_rxbuf_init
/**
* @brief Initialize & alloc RX buffer
* @details This function executes;\n
* # Create DMA pool\n
* # Alloc RX buffer\n
* # Call RX buffer clear
* @param N/A
* @retval 0 : Success
* @retval -ENOMEM : Error, no enough memory.
* @note
*/
int felica_rxbuf_init(void)
{
int i;
pr_debug(PRT_NAME ": %s\n", __func__);
rxbuf.dmapool = dma_pool_create(DMAPOOL_NAME, NULL, DMAPOOL_SIZE,
DMAPOOL_ALIGN, DMAPOOL_ALIGN * RXBUF_N);
if (!rxbuf.dmapool) {
pr_err(PRT_NAME ": Error. Cannot create DMA pool for RXbuf.");
return -ENOMEM;
}
for (i = 0; i < RXBUF_N; i++) {
rxbuf.slot[i].buf = dma_pool_alloc(rxbuf.dmapool, GFP_KERNEL,
&rxbuf.slot[i].dmabase);
if (!rxbuf.slot[i].buf) {
pr_err(PRT_NAME
": Error. No enough mem for RXbuf.\n");
goto err_alloc_rx_buf;
}
}
felica_rxbuf_clear();
return 0;
err_alloc_rx_buf:
for (i--; i >= 0; i--) {
dma_pool_free(rxbuf.dmapool, rxbuf.slot[i].buf,
rxbuf.slot[i].dmabase);
}
dma_pool_destroy(rxbuf.dmapool);
rxbuf.dmapool = NULL;
return -ENOMEM;
}
开发者ID:3ig，项目名称:Xperia-2011-Official-Kernel-Sources，代码行数:46，代码来源:felica_rxbuf.c
示例12: cc_unmap_cipher_request
void cc_unmap_cipher_request(struct device *dev, void *ctx,
unsigned int ivsize, struct scatterlist *src,
struct scatterlist *dst)
{
struct cipher_req_ctx *req_ctx = (struct cipher_req_ctx *)ctx;
if (req_ctx->gen_ctx.iv_dma_addr) {
dev_dbg(dev, "Unmapped iv: iv_dma_addr=%pad iv_size=%u\n",
&req_ctx->gen_ctx.iv_dma_addr, ivsize);
dma_unmap_single(dev, req_ctx->gen_ctx.iv_dma_addr,
ivsize, DMA_TO_DEVICE);
}
/* Release pool */
if (req_ctx->dma_buf_type == CC_DMA_BUF_MLLI &&
req_ctx->mlli_params.mlli_virt_addr) {
dma_pool_free(req_ctx->mlli_params.curr_pool,
req_ctx->mlli_params.mlli_virt_addr,
req_ctx->mlli_params.mlli_dma_addr);
}
dma_unmap_sg(dev, src, req_ctx->in_nents, DMA_BIDIRECTIONAL);
dev_dbg(dev, "Unmapped req->src=%pK\n", sg_virt(src));
if (src != dst) {
dma_unmap_sg(dev, dst, req_ctx->out_nents, DMA_BIDIRECTIONAL);
dev_dbg(dev, "Unmapped req->dst=%pK\n", sg_virt(dst));
}
}
开发者ID:Anjali05，项目名称:linux，代码行数:28，代码来源:cc_buffer_mgr.c
示例13: my_init
static int __init my_init(void)
{
printk(KERN_INFO "Satish testing DMA module");
printk(KERN_INFO "testing DMA coherent mapping dma_alloc_coherent()");
kbuf = dma_alloc_coherent(NULL, size, &handle, GFP_KERNEL);
output(kbuf, handle, size, "dma_alloc_coherent string");
dma_free_coherent(NULL, size, kbuf, handle);
printk(KERN_INFO "Testing DMA Mapping dma_map_page()");
kbuf = kmalloc(size, GFP_KERNEL);
handle = dma_map_single(NULL, size, &handle, GFP_KERNEL);
output(kbuf, handle, size, "this is dma_map_single string");
dma_unmap_single(NULL, handle, size, direction);
kfree(kbuf);
printk(KERN_INFO "Testing DMA Pool method");
mypool = dma_pool_create("mypool", NULL, pool_size, pool_align, 0);
kbuf = dma_pool_alloc(mypool, GFP_KERNEL, &handle);
output(kbuf, handle, size, "This is dma_pool_alloc string");
dma_pool_free(mypool, kbuf, handle);
dma_pool_destroy(mypool);
return 0;
}
开发者ID:Embedded-linux，项目名称:Linux-kernel-driver，代码行数:28，代码来源:dma-test1.c
示例14: ehci_qtd_free
static inline void ehci_qtd_free (struct ehci_hcd *ehci, struct ehci_qtd *qtd)
{
/* tony.yu map between PHY addr & BUS addr */
#if defined(CONFIG_ARM) && (MP_USB_MSTAR==1)
qtd->qtd_dma = PA2BUS(qtd->qtd_dma);
#endif
dma_pool_free (ehci->qtd_pool, qtd, qtd->qtd_dma);
}
开发者ID:Scorpio92，项目名称:mstar6a918，代码行数:8，代码来源:ehci-mem.c
示例15: do_free_req
static void do_free_req(struct usb_info *ui, struct msm_request *req)
{
if (req->alloced)
kfree(req->req.buf);
dma_pool_free(ui->pool, req->item, req->item_dma);
kfree(req);
}
开发者ID:rex12345，项目名称:kernel-2.6.29-M860，代码行数:8，代码来源:msm72k_udc.c
示例16: xhci_free_container_ctx
void xhci_free_container_ctx(struct xhci_hcd *xhci,
struct xhci_container_ctx *ctx)
{
if (!ctx)
return;
dma_pool_free(xhci->device_pool, ctx->bytes, ctx->dma);
kfree(ctx);
}
开发者ID:mikebyrne，项目名称:linux-2.6，代码行数:8，代码来源:xhci-mem.c
示例17: unmap_aead_request
void unmap_aead_request(struct device *dev, struct aead_request *req)
{
struct aead_req_ctx *areq_ctx = aead_request_ctx(req);
unsigned int hw_iv_size = areq_ctx->hw_iv_size;
/*HI3630++ DX: for SCCC bug*/
//HI3630 if (!areq_ctx->mac_buf_dma_addr)
if (areq_ctx->mac_buf_dma_addr != 0)
/*HI3630--*/
dma_unmap_single(dev, areq_ctx->mac_buf_dma_addr,
MAX_MAC_SIZE, DMA_BIDIRECTIONAL);
if (areq_ctx->ccm_hdr_size != ccm_header_size_null) {
/*HI3630++ DX: for SCCC bug*/
//HI3630 if (!areq_ctx->ccm_iv0_dma_addr)
if (areq_ctx->ccm_iv0_dma_addr != 0)
/*HI3630--*/
dma_unmap_single(dev, areq_ctx->ccm_iv0_dma_addr,
AES_BLOCK_SIZE, DMA_TO_DEVICE);
if (&areq_ctx->ccm_adata_sg != NULL)
dma_unmap_sg(dev, &areq_ctx->ccm_adata_sg,
1, DMA_TO_DEVICE);
}
/*HI3630++ DX: for SCCC bug*/
//HI3630 if (!areq_ctx->gen_ctx.iv_dma_addr)
if (areq_ctx->gen_ctx.iv_dma_addr != 0)
/*HI3630--*/
dma_unmap_single(dev, areq_ctx->gen_ctx.iv_dma_addr,
hw_iv_size, DMA_BIDIRECTIONAL);
/*In case a pool was set, a table was
allocated and should be released */
if (areq_ctx->mlli_params.curr_pool != NULL) {
DX_LOG_DEBUG("free MLLI buffer: dma=0x%08lX virt=0x%08X\n",
(unsigned long)areq_ctx->mlli_params.mlli_dma_addr,
(uint32_t)areq_ctx->mlli_params.mlli_virt_addr);
dma_pool_free(areq_ctx->mlli_params.curr_pool,
areq_ctx->mlli_params.mlli_virt_addr,
areq_ctx->mlli_params.mlli_dma_addr);
}
if (areq_ctx->assoc_dma_buf_type != DX_DMA_BUF_NULL) {
DX_LOG_DEBUG("Unmapping sg assoc: req->assoc=0x%08lX\n",
(unsigned long)sg_virt(req->assoc));
dma_unmap_sg(dev, req->assoc, areq_ctx->assoc_nents,
DMA_TO_DEVICE);
}
DX_LOG_DEBUG("Unmapping sg src: req->src=0x%08lX\n",
(unsigned long)sg_virt(req->src));
dma_unmap_sg(dev, req->src,
areq_ctx->in_nents, DMA_BIDIRECTIONAL);
if (unlikely(req->src != req->dst)) {
DX_LOG_DEBUG("Unmapping sg dst: req->dst=0x%08lX\n",
(unsigned long)sg_virt(req->dst));
dma_unmap_sg(dev, req->dst,
areq_ctx->out_nents, DMA_BIDIRECTIONAL);
}
}
开发者ID:HuaweiHonor4C，项目名称:kernel_hi6210sft_mm，代码行数:58，代码来源:dx_buffer_mgr.c
示例18: fdma_resize_nodelist_mem
static int fdma_resize_nodelist_mem(struct fdma *fdma,
struct fdma_xfer_descriptor *desc, unsigned int new_nnodes,
gfp_t context)
{
int old_list_size, new_list_size;
unsigned int cur_nnodes;
struct fdma_llu_node *new_nodes;
/* This holds the number of allocated nodes, which may differ
* from the old or new size. It must be maintained so that
* free_list works. */
cur_nnodes = desc->alloced_nodes;
/* The only resize down we need to support is freeing everything. */
if (new_nnodes == 0)
goto free_list;
/* this happens if the DMA firmware was not loaded yet. */
if(!fdma->llu_pool)
return -ENOMEM;
old_list_size = sizeof(struct fdma_llu_node) * desc->alloced_nodes;
new_list_size = sizeof(struct fdma_llu_node) * new_nnodes;
new_nodes = kmalloc(new_list_size, context);
if (new_nodes == NULL)
goto free_list;
if (old_list_size > 0) {
memcpy(new_nodes, desc->llu_nodes, old_list_size);
kfree(desc->llu_nodes);
}
desc->llu_nodes = new_nodes;
for (new_nodes += desc->alloced_nodes; cur_nnodes < new_nnodes;
cur_nnodes++, new_nodes++) {
new_nodes->virt_addr = dma_pool_alloc(fdma->llu_pool,
context, &new_nodes->dma_addr);
if (new_nodes->virt_addr == NULL)
goto free_list;
}
desc->alloced_nodes = new_nnodes;
return 0;
free_list:
for (new_nodes = desc->llu_nodes; cur_nnodes;
cur_nnodes--, new_nodes++)
dma_pool_free(fdma->llu_pool, new_nodes->virt_addr,
new_nodes->dma_addr);
kfree(desc->llu_nodes);
desc->llu_nodes = NULL;
desc->alloced_nodes = 0;
return -ENOMEM;
}
开发者ID:geraldmusch，项目名称:satip-axe，代码行数:57，代码来源:fdma.c
示例19: mv_cesa_ahash_dma_free_padding
static void mv_cesa_ahash_dma_free_padding(struct mv_cesa_ahash_dma_req *req)
{
if (!req->padding)
return;
dma_pool_free(cesa_dev->dma->padding_pool, req->padding,
req->padding_dma);
req->padding = NULL;
}
开发者ID:AK101111，项目名称:linux，代码行数:9，代码来源:hash.c
示例20: ehci_qtd_free
static inline void ehci_qtd_free(struct ehci_hcd *ehci, struct ehci_qtd *qtd)
{
if ((qtd->qtd_dma & (USB_IRAM_BASE_ADDR & 0xFFF00000)) ==
(USB_IRAM_BASE_ADDR & 0xFFF00000))
usb_free(qtd->qtd_dma);
else
dma_pool_free(ehci->qtd_pool, qtd, qtd->qtd_dma);
--g_debug_qtd_allocated;
}
开发者ID:despierto，项目名称:imx_233_linux，代码行数:9，代码来源:ehci-mem-iram.c
注：本文中的dma_pool_free函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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