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iwlwifi: use dma_alloc_coherent
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Change pci_alloc_consistent() to dma_alloc_coherent() so we can use
GFP_KERNEL flag.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
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Stanislaw Gruszka authored and Reinette Chatre committed Feb 11, 2010
1 parent 6c3872e commit f36d04a
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Showing 6 changed files with 44 additions and 43 deletions.
8 changes: 3 additions & 5 deletions drivers/net/wireless/iwlwifi/iwl-3945.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2470,11 +2470,9 @@ int iwl3945_hw_set_hw_params(struct iwl_priv *priv)
memset((void *)&priv->hw_params, 0,
sizeof(struct iwl_hw_params));

priv->shared_virt =
pci_alloc_consistent(priv->pci_dev,
sizeof(struct iwl3945_shared),
&priv->shared_phys);

priv->shared_virt = dma_alloc_coherent(&priv->pci_dev->dev,
sizeof(struct iwl3945_shared),
&priv->shared_phys, GFP_KERNEL);
if (!priv->shared_virt) {
IWL_ERR(priv, "failed to allocate pci memory\n");
mutex_unlock(&priv->mutex);
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12 changes: 6 additions & 6 deletions drivers/net/wireless/iwlwifi/iwl-core.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1670,9 +1670,9 @@ EXPORT_SYMBOL(iwl_set_tx_power);
void iwl_free_isr_ict(struct iwl_priv *priv)
{
if (priv->ict_tbl_vir) {
pci_free_consistent(priv->pci_dev, (sizeof(u32) * ICT_COUNT) +
PAGE_SIZE, priv->ict_tbl_vir,
priv->ict_tbl_dma);
dma_free_coherent(&priv->pci_dev->dev,
(sizeof(u32) * ICT_COUNT) + PAGE_SIZE,
priv->ict_tbl_vir, priv->ict_tbl_dma);
priv->ict_tbl_vir = NULL;
}
}
Expand All @@ -1688,9 +1688,9 @@ int iwl_alloc_isr_ict(struct iwl_priv *priv)
if (priv->cfg->use_isr_legacy)
return 0;
/* allocate shrared data table */
priv->ict_tbl_vir = pci_alloc_consistent(priv->pci_dev, (sizeof(u32) *
ICT_COUNT) + PAGE_SIZE,
&priv->ict_tbl_dma);
priv->ict_tbl_vir = dma_alloc_coherent(&priv->pci_dev->dev,
(sizeof(u32) * ICT_COUNT) + PAGE_SIZE,
&priv->ict_tbl_dma, GFP_KERNEL);
if (!priv->ict_tbl_vir)
return -ENOMEM;

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7 changes: 4 additions & 3 deletions drivers/net/wireless/iwlwifi/iwl-helpers.h
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Original file line number Diff line number Diff line change
Expand Up @@ -80,16 +80,17 @@ static inline void iwl_free_fw_desc(struct pci_dev *pci_dev,
struct fw_desc *desc)
{
if (desc->v_addr)
pci_free_consistent(pci_dev, desc->len,
desc->v_addr, desc->p_addr);
dma_free_coherent(&pci_dev->dev, desc->len,
desc->v_addr, desc->p_addr);
desc->v_addr = NULL;
desc->len = 0;
}

static inline int iwl_alloc_fw_desc(struct pci_dev *pci_dev,
struct fw_desc *desc)
{
desc->v_addr = pci_alloc_consistent(pci_dev, desc->len, &desc->p_addr);
desc->v_addr = dma_alloc_coherent(&pci_dev->dev, desc->len,
&desc->p_addr, GFP_KERNEL);
return (desc->v_addr != NULL) ? 0 : -ENOMEM;
}

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21 changes: 11 additions & 10 deletions drivers/net/wireless/iwlwifi/iwl-rx.c
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Original file line number Diff line number Diff line change
Expand Up @@ -345,10 +345,10 @@ void iwl_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
}
}

pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd,
rxq->dma_addr);
pci_free_consistent(priv->pci_dev, sizeof(struct iwl_rb_status),
rxq->rb_stts, rxq->rb_stts_dma);
dma_free_coherent(&priv->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd,
rxq->dma_addr);
dma_free_coherent(&priv->pci_dev->dev, sizeof(struct iwl_rb_status),
rxq->rb_stts, rxq->rb_stts_dma);
rxq->bd = NULL;
rxq->rb_stts = NULL;
}
Expand All @@ -357,20 +357,21 @@ EXPORT_SYMBOL(iwl_rx_queue_free);
int iwl_rx_queue_alloc(struct iwl_priv *priv)
{
struct iwl_rx_queue *rxq = &priv->rxq;
struct pci_dev *dev = priv->pci_dev;
struct device *dev = &priv->pci_dev->dev;
int i;

spin_lock_init(&rxq->lock);
INIT_LIST_HEAD(&rxq->rx_free);
INIT_LIST_HEAD(&rxq->rx_used);

/* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
rxq->bd = pci_alloc_consistent(dev, 4 * RX_QUEUE_SIZE, &rxq->dma_addr);
rxq->bd = dma_alloc_coherent(dev, 4 * RX_QUEUE_SIZE, &rxq->dma_addr,
GFP_KERNEL);
if (!rxq->bd)
goto err_bd;

rxq->rb_stts = pci_alloc_consistent(dev, sizeof(struct iwl_rb_status),
&rxq->rb_stts_dma);
rxq->rb_stts = dma_alloc_coherent(dev, sizeof(struct iwl_rb_status),
&rxq->rb_stts_dma, GFP_KERNEL);
if (!rxq->rb_stts)
goto err_rb;

Expand All @@ -387,8 +388,8 @@ int iwl_rx_queue_alloc(struct iwl_priv *priv)
return 0;

err_rb:
pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd,
rxq->dma_addr);
dma_free_coherent(&priv->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd,
rxq->dma_addr);
err_bd:
return -ENOMEM;
}
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23 changes: 12 additions & 11 deletions drivers/net/wireless/iwlwifi/iwl-tx.c
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Original file line number Diff line number Diff line change
Expand Up @@ -60,7 +60,8 @@ static const u16 default_tid_to_tx_fifo[] = {
static inline int iwl_alloc_dma_ptr(struct iwl_priv *priv,
struct iwl_dma_ptr *ptr, size_t size)
{
ptr->addr = pci_alloc_consistent(priv->pci_dev, size, &ptr->dma);
ptr->addr = dma_alloc_coherent(&priv->pci_dev->dev, size, &ptr->dma,
GFP_KERNEL);
if (!ptr->addr)
return -ENOMEM;
ptr->size = size;
Expand All @@ -73,7 +74,7 @@ static inline void iwl_free_dma_ptr(struct iwl_priv *priv,
if (unlikely(!ptr->addr))
return;

pci_free_consistent(priv->pci_dev, ptr->size, ptr->addr, ptr->dma);
dma_free_coherent(&priv->pci_dev->dev, ptr->size, ptr->addr, ptr->dma);
memset(ptr, 0, sizeof(*ptr));
}

Expand Down Expand Up @@ -129,7 +130,7 @@ void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id)
{
struct iwl_tx_queue *txq = &priv->txq[txq_id];
struct iwl_queue *q = &txq->q;
struct pci_dev *dev = priv->pci_dev;
struct device *dev = &priv->pci_dev->dev;
int i;

if (q->n_bd == 0)
Expand All @@ -146,8 +147,8 @@ void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id)

/* De-alloc circular buffer of TFDs */
if (txq->q.n_bd)
pci_free_consistent(dev, priv->hw_params.tfd_size *
txq->q.n_bd, txq->tfds, txq->q.dma_addr);
dma_free_coherent(dev, priv->hw_params.tfd_size *
txq->q.n_bd, txq->tfds, txq->q.dma_addr);

/* De-alloc array of per-TFD driver data */
kfree(txq->txb);
Expand Down Expand Up @@ -176,7 +177,7 @@ void iwl_cmd_queue_free(struct iwl_priv *priv)
{
struct iwl_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM];
struct iwl_queue *q = &txq->q;
struct pci_dev *dev = priv->pci_dev;
struct device *dev = &priv->pci_dev->dev;
int i;

if (q->n_bd == 0)
Expand All @@ -188,8 +189,8 @@ void iwl_cmd_queue_free(struct iwl_priv *priv)

/* De-alloc circular buffer of TFDs */
if (txq->q.n_bd)
pci_free_consistent(dev, priv->hw_params.tfd_size *
txq->q.n_bd, txq->tfds, txq->q.dma_addr);
dma_free_coherent(dev, priv->hw_params.tfd_size * txq->q.n_bd,
txq->tfds, txq->q.dma_addr);

/* deallocate arrays */
kfree(txq->cmd);
Expand Down Expand Up @@ -280,7 +281,7 @@ static int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
static int iwl_tx_queue_alloc(struct iwl_priv *priv,
struct iwl_tx_queue *txq, u32 id)
{
struct pci_dev *dev = priv->pci_dev;
struct device *dev = &priv->pci_dev->dev;
size_t tfd_sz = priv->hw_params.tfd_size * TFD_QUEUE_SIZE_MAX;

/* Driver private data, only for Tx (not command) queues,
Expand All @@ -299,8 +300,8 @@ static int iwl_tx_queue_alloc(struct iwl_priv *priv,

/* Circular buffer of transmit frame descriptors (TFDs),
* shared with device */
txq->tfds = pci_alloc_consistent(dev, tfd_sz, &txq->q.dma_addr);

txq->tfds = dma_alloc_coherent(dev, tfd_sz, &txq->q.dma_addr,
GFP_KERNEL);
if (!txq->tfds) {
IWL_ERR(priv, "pci_alloc_consistent(%zd) failed\n", tfd_sz);
goto error;
Expand Down
16 changes: 8 additions & 8 deletions drivers/net/wireless/iwlwifi/iwl3945-base.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -352,10 +352,10 @@ static int iwl3945_send_beacon_cmd(struct iwl_priv *priv)
static void iwl3945_unset_hw_params(struct iwl_priv *priv)
{
if (priv->shared_virt)
pci_free_consistent(priv->pci_dev,
sizeof(struct iwl3945_shared),
priv->shared_virt,
priv->shared_phys);
dma_free_coherent(&priv->pci_dev->dev,
sizeof(struct iwl3945_shared),
priv->shared_virt,
priv->shared_phys);
}

static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv *priv,
Expand Down Expand Up @@ -1241,10 +1241,10 @@ static void iwl3945_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rx
}
}

pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd,
rxq->dma_addr);
pci_free_consistent(priv->pci_dev, sizeof(struct iwl_rb_status),
rxq->rb_stts, rxq->rb_stts_dma);
dma_free_coherent(&priv->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd,
rxq->dma_addr);
dma_free_coherent(&priv->pci_dev->dev, sizeof(struct iwl_rb_status),
rxq->rb_stts, rxq->rb_stts_dma);
rxq->bd = NULL;
rxq->rb_stts = NULL;
}
Expand Down

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