From 3599d39a8525b01540e2c7ec8c5d0df0dd11d6cf Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Tue, 31 May 2011 08:52:10 +0300 Subject: [PATCH] iwlagn: add get_dev to iwl_bus_ops Bus specific layer must know how to return the struct device* of the device. Implement that as a callback of iwl_bus_ops and use that callback instead of using the priv->pdev pointer which is meant to disappear soon. Since the struct device * is needed in hot path, iwl_bus holds a pointer to it instead of calling get_dev all the time. Signed-off-by: Emmanuel Grumbach Signed-off-by: Wey-Yi Guy --- drivers/net/wireless/iwlwifi/iwl-agn-ict.c | 4 +- drivers/net/wireless/iwlwifi/iwl-agn-lib.c | 7 +-- drivers/net/wireless/iwlwifi/iwl-agn-tx.c | 7 +-- drivers/net/wireless/iwlwifi/iwl-agn.c | 53 ++++++++++++---------- drivers/net/wireless/iwlwifi/iwl-debug.h | 8 ++-- drivers/net/wireless/iwlwifi/iwl-dev.h | 3 ++ drivers/net/wireless/iwlwifi/iwl-led.c | 3 +- drivers/net/wireless/iwlwifi/iwl-pci.c | 6 +++ drivers/net/wireless/iwlwifi/iwl-rx.c | 4 +- drivers/net/wireless/iwlwifi/iwl-sv-open.c | 4 +- drivers/net/wireless/iwlwifi/iwl-tx.c | 6 +-- 11 files changed, 60 insertions(+), 45 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-ict.c b/drivers/net/wireless/iwlwifi/iwl-agn-ict.c index 0d5fda44c3a3..f1b40ec1c873 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-ict.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-ict.c @@ -44,7 +44,7 @@ void iwl_free_isr_ict(struct iwl_priv *priv) { if (priv->_agn.ict_tbl_vir) { - dma_free_coherent(&priv->pci_dev->dev, + dma_free_coherent(priv->bus.dev, (sizeof(u32) * ICT_COUNT) + PAGE_SIZE, priv->_agn.ict_tbl_vir, priv->_agn.ict_tbl_dma); @@ -61,7 +61,7 @@ int iwl_alloc_isr_ict(struct iwl_priv *priv) /* allocate shrared data table */ priv->_agn.ict_tbl_vir = - dma_alloc_coherent(&priv->pci_dev->dev, + dma_alloc_coherent(priv->bus.dev, (sizeof(u32) * ICT_COUNT) + PAGE_SIZE, &priv->_agn.ict_tbl_dma, GFP_KERNEL); if (!priv->_agn.ict_tbl_vir) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c index 99d473f527d5..4c11edcb4e61 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c @@ -966,9 +966,10 @@ void iwlagn_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq) } } - dma_free_coherent(&priv->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd, - rxq->bd_dma); - dma_free_coherent(&priv->pci_dev->dev, sizeof(struct iwl_rb_status), + dma_free_coherent(priv->bus.dev, 4 * RX_QUEUE_SIZE, + rxq->bd, rxq->bd_dma); + dma_free_coherent(priv->bus.dev, + sizeof(struct iwl_rb_status), rxq->rb_stts, rxq->rb_stts_dma); rxq->bd = NULL; rxq->rb_stts = NULL; diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c index 8bd48f61a9f5..f4e5edefd066 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c @@ -834,8 +834,8 @@ drop_unlock_priv: static inline int iwlagn_alloc_dma_ptr(struct iwl_priv *priv, struct iwl_dma_ptr *ptr, size_t size) { - ptr->addr = dma_alloc_coherent(&priv->pci_dev->dev, size, &ptr->dma, - GFP_KERNEL); + ptr->addr = dma_alloc_coherent(priv->bus.dev, size, + &ptr->dma, GFP_KERNEL); if (!ptr->addr) return -ENOMEM; ptr->size = size; @@ -848,7 +848,8 @@ static inline void iwlagn_free_dma_ptr(struct iwl_priv *priv, if (unlikely(!ptr->addr)) return; - dma_free_coherent(&priv->pci_dev->dev, ptr->size, ptr->addr, ptr->dma); + dma_free_coherent(priv->bus.dev, + ptr->size, ptr->addr, ptr->dma); memset(ptr, 0, sizeof(*ptr)); } diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 1eeb4a75da03..0098245a62ed 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -937,22 +937,28 @@ static struct attribute_group iwl_attribute_group = { * ******************************************************************************/ -static void iwl_free_fw_desc(struct pci_dev *pci_dev, struct fw_desc *desc) +static void iwl_free_fw_desc(struct iwl_priv *priv, struct fw_desc *desc) { if (desc->v_addr) - dma_free_coherent(&pci_dev->dev, desc->len, + dma_free_coherent(priv->bus.dev, desc->len, desc->v_addr, desc->p_addr); desc->v_addr = NULL; desc->len = 0; } -static void iwl_free_fw_img(struct pci_dev *pci_dev, struct fw_img *img) +static void iwl_free_fw_img(struct iwl_priv *priv, struct fw_img *img) { - iwl_free_fw_desc(pci_dev, &img->code); - iwl_free_fw_desc(pci_dev, &img->data); + iwl_free_fw_desc(priv, &img->code); + iwl_free_fw_desc(priv, &img->data); } -static int iwl_alloc_fw_desc(struct pci_dev *pci_dev, struct fw_desc *desc, +static void iwl_dealloc_ucode(struct iwl_priv *priv) +{ + iwl_free_fw_img(priv, &priv->ucode_rt); + iwl_free_fw_img(priv, &priv->ucode_init); +} + +static int iwl_alloc_fw_desc(struct iwl_priv *priv, struct fw_desc *desc, const void *data, size_t len) { if (!len) { @@ -960,21 +966,16 @@ static int iwl_alloc_fw_desc(struct pci_dev *pci_dev, struct fw_desc *desc, return -EINVAL; } - desc->v_addr = dma_alloc_coherent(&pci_dev->dev, len, + desc->v_addr = dma_alloc_coherent(priv->bus.dev, len, &desc->p_addr, GFP_KERNEL); if (!desc->v_addr) return -ENOMEM; + desc->len = len; memcpy(desc->v_addr, data, len); return 0; } -static void iwl_dealloc_ucode_pci(struct iwl_priv *priv) -{ - iwl_free_fw_img(priv->pci_dev, &priv->ucode_rt); - iwl_free_fw_img(priv->pci_dev, &priv->ucode_init); -} - struct iwlagn_ucode_capabilities { u32 max_probe_length; u32 standard_phy_calibration_size; @@ -1019,8 +1020,8 @@ static int __must_check iwl_request_firmware(struct iwl_priv *priv, bool first) priv->firmware_name); return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name, - &priv->pci_dev->dev, GFP_KERNEL, priv, - iwl_ucode_callback); + priv->bus.dev, + GFP_KERNEL, priv, iwl_ucode_callback); } struct iwlagn_firmware_pieces { @@ -1441,19 +1442,19 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) /* Runtime instructions and 2 copies of data: * 1) unmodified from disk * 2) backup cache for save/restore during power-downs */ - if (iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_rt.code, + if (iwl_alloc_fw_desc(priv, &priv->ucode_rt.code, pieces.inst, pieces.inst_size)) goto err_pci_alloc; - if (iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_rt.data, + if (iwl_alloc_fw_desc(priv, &priv->ucode_rt.data, pieces.data, pieces.data_size)) goto err_pci_alloc; /* Initialization instructions and data */ if (pieces.init_size && pieces.init_data_size) { - if (iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init.code, + if (iwl_alloc_fw_desc(priv, &priv->ucode_init.code, pieces.init, pieces.init_size)) goto err_pci_alloc; - if (iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init.data, + if (iwl_alloc_fw_desc(priv, &priv->ucode_init.data, pieces.init_data, pieces.init_data_size)) goto err_pci_alloc; } @@ -1522,7 +1523,7 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) if (err) IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err); - err = sysfs_create_group(&priv->pci_dev->dev.kobj, + err = sysfs_create_group(&(priv->bus.dev->kobj), &iwl_attribute_group); if (err) { IWL_ERR(priv, "failed to create sysfs device attributes\n"); @@ -1543,10 +1544,10 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) err_pci_alloc: IWL_ERR(priv, "failed to allocate pci memory\n"); - iwl_dealloc_ucode_pci(priv); + iwl_dealloc_ucode(priv); out_unbind: complete(&priv->_agn.firmware_loading_complete); - device_release_driver(&priv->pci_dev->dev); + device_release_driver(priv->bus.dev); release_firmware(ucode_raw); } @@ -3507,10 +3508,11 @@ int iwl_probe(void *bus_specific, struct iwl_bus_ops *bus_ops, priv->bus.bus_specific = bus_specific; priv->bus.ops = bus_ops; priv->bus.ops->set_drv_data(&priv->bus, priv); + priv->bus.dev = priv->bus.ops->get_dev(&priv->bus); /* At this point both hw and priv are allocated. */ - SET_IEEE80211_DEV(hw, &pdev->dev); + SET_IEEE80211_DEV(hw, priv->bus.dev); IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); priv->cfg = cfg; @@ -3735,7 +3737,8 @@ void __devexit iwl_remove(struct iwl_priv * priv) IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n"); iwl_dbgfs_unregister(priv); - sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group); + sysfs_remove_group(&priv->bus.dev->kobj, + &iwl_attribute_group); /* ieee80211_unregister_hw call wil cause iwl_mac_stop to * to be called and iwl_down since we are removing the device @@ -3765,7 +3768,7 @@ void __devexit iwl_remove(struct iwl_priv * priv) iwl_synchronize_irq(priv); - iwl_dealloc_ucode_pci(priv); + iwl_dealloc_ucode(priv); if (priv->rxq.bd) iwlagn_rx_queue_free(priv, &priv->rxq); diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h index c844b512e563..eb95d1a37487 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debug.h +++ b/drivers/net/wireless/iwlwifi/iwl-debug.h @@ -32,10 +32,10 @@ struct iwl_priv; extern u32 iwl_debug_level; -#define IWL_ERR(p, f, a...) dev_err(&((p)->pci_dev->dev), f, ## a) -#define IWL_WARN(p, f, a...) dev_warn(&((p)->pci_dev->dev), f, ## a) -#define IWL_INFO(p, f, a...) dev_info(&((p)->pci_dev->dev), f, ## a) -#define IWL_CRIT(p, f, a...) dev_crit(&((p)->pci_dev->dev), f, ## a) +#define IWL_ERR(p, f, a...) dev_err(p->bus.ops->get_dev(&p->bus), f, ## a) +#define IWL_WARN(p, f, a...) dev_warn(p->bus.ops->get_dev(&p->bus), f, ## a) +#define IWL_INFO(p, f, a...) dev_info(p->bus.ops->get_dev(&p->bus), f, ## a) +#define IWL_CRIT(p, f, a...) dev_crit(p->bus.ops->get_dev(&p->bus), f, ## a) #define iwl_print_hex_error(priv, p, len) \ do { \ diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index 8865514226b9..49e6c68f9b75 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -1194,9 +1194,11 @@ struct iwl_bus; /** * struct iwl_bus_ops - bus specific operations * @set_drv_data: set the priv pointer to the bus layer + * @get_dev: returns the device struct */ struct iwl_bus_ops { void (*set_drv_data)(struct iwl_bus *bus, void *priv); + struct device *(*get_dev)(const struct iwl_bus *bus); }; struct iwl_bus { @@ -1205,6 +1207,7 @@ struct iwl_bus { /* Common data to all buses */ struct iwl_priv *priv; /* driver's context */ + struct device *dev; struct iwl_bus_ops *ops; }; diff --git a/drivers/net/wireless/iwlwifi/iwl-led.c b/drivers/net/wireless/iwlwifi/iwl-led.c index 7ef2b23565d2..ff08da099754 100644 --- a/drivers/net/wireless/iwlwifi/iwl-led.c +++ b/drivers/net/wireless/iwlwifi/iwl-led.c @@ -202,7 +202,8 @@ void iwl_leds_init(struct iwl_priv *priv) break; } - ret = led_classdev_register(&priv->pci_dev->dev, &priv->led); + ret = led_classdev_register(priv->bus.dev, + &priv->led); if (ret) { kfree(priv->led.name); return; diff --git a/drivers/net/wireless/iwlwifi/iwl-pci.c b/drivers/net/wireless/iwlwifi/iwl-pci.c index ef9cb0813c69..00458fc2c402 100644 --- a/drivers/net/wireless/iwlwifi/iwl-pci.c +++ b/drivers/net/wireless/iwlwifi/iwl-pci.c @@ -86,8 +86,14 @@ static void iwl_pci_set_drv_data(struct iwl_bus *bus, void *drv_priv) pci_set_drvdata(IWL_BUS_GET_PCI_DEV(bus), drv_priv); } +static struct device *iwl_pci_get_dev(const struct iwl_bus *bus) +{ + return &(IWL_BUS_GET_PCI_DEV(bus)->dev); +} + static struct iwl_bus_ops pci_ops = { .set_drv_data = iwl_pci_set_drv_data, + .get_dev = iwl_pci_get_dev, }; #define IWL_PCI_DEVICE(dev, subdev, cfg) \ diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c index b774517aa9fa..3efa7066e987 100644 --- a/drivers/net/wireless/iwlwifi/iwl-rx.c +++ b/drivers/net/wireless/iwlwifi/iwl-rx.c @@ -182,7 +182,7 @@ void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl_rx_queue *q int iwl_rx_queue_alloc(struct iwl_priv *priv) { struct iwl_rx_queue *rxq = &priv->rxq; - struct device *dev = &priv->pci_dev->dev; + struct device *dev = priv->bus.dev; int i; spin_lock_init(&rxq->lock); @@ -213,7 +213,7 @@ int iwl_rx_queue_alloc(struct iwl_priv *priv) return 0; err_rb: - dma_free_coherent(&priv->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd, + dma_free_coherent(dev, 4 * RX_QUEUE_SIZE, rxq->bd, rxq->bd_dma); err_bd: return -ENOMEM; diff --git a/drivers/net/wireless/iwlwifi/iwl-sv-open.c b/drivers/net/wireless/iwlwifi/iwl-sv-open.c index 6f626425144e..c00aa5a1b8b8 100644 --- a/drivers/net/wireless/iwlwifi/iwl-sv-open.c +++ b/drivers/net/wireless/iwlwifi/iwl-sv-open.c @@ -180,7 +180,7 @@ void iwl_testmode_init(struct iwl_priv *priv) static void iwl_trace_cleanup(struct iwl_priv *priv) { - struct device *dev = &priv->pci_dev->dev; + struct device *dev = priv->bus.dev; if (priv->testmode_trace.trace_enabled) { if (priv->testmode_trace.cpu_addr && @@ -484,7 +484,7 @@ static int iwl_testmode_trace(struct ieee80211_hw *hw, struct nlattr **tb) struct iwl_priv *priv = hw->priv; struct sk_buff *skb; int status = 0; - struct device *dev = &priv->pci_dev->dev; + struct device *dev = priv->bus.dev; switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { case IWL_TM_CMD_APP2DEV_BEGIN_TRACE: diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c index 1084fe0e8a86..f982ac9b8ba2 100644 --- a/drivers/net/wireless/iwlwifi/iwl-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-tx.c @@ -266,7 +266,7 @@ void iwl_tx_queue_unmap(struct iwl_priv *priv, int txq_id) void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id) { struct iwl_tx_queue *txq = &priv->txq[txq_id]; - struct device *dev = &priv->pci_dev->dev; + struct device *dev = priv->bus.dev; int i; iwl_tx_queue_unmap(priv, txq_id); @@ -332,7 +332,7 @@ void iwl_cmd_queue_unmap(struct iwl_priv *priv) void iwl_cmd_queue_free(struct iwl_priv *priv) { struct iwl_tx_queue *txq = &priv->txq[priv->cmd_queue]; - struct device *dev = &priv->pci_dev->dev; + struct device *dev = priv->bus.dev; int i; iwl_cmd_queue_unmap(priv); @@ -434,7 +434,7 @@ 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 device *dev = &priv->pci_dev->dev; + struct device *dev = priv->bus.dev; size_t tfd_sz = priv->hw_params.tfd_size * TFD_QUEUE_SIZE_MAX; /* Driver private data, only for Tx (not command) queues, -- 2.34.1