From: Stanislaw Gruszka Date: Wed, 7 Mar 2012 17:52:26 +0000 (-0800) Subject: iwlwifi: use writeb,writel,readl directly X-Git-Tag: v3.12-rc1~3664^2~108^2~22 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=05f5b97ee0013fefbd9139cf8c3eda5f2a88c04a;p=kernel%2Fkernel-generic.git iwlwifi: use writeb,writel,readl directly That change will save us some CPU cycles at run time. Having port-based I/O seems to be not possible for PCIe devices. Signed-off-by: Stanislaw Gruszka Signed-off-by: Johannes Berg Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/iwlwifi/Kconfig b/drivers/net/wireless/iwlwifi/Kconfig index ae08498..5afd06e 100644 --- a/drivers/net/wireless/iwlwifi/Kconfig +++ b/drivers/net/wireless/iwlwifi/Kconfig @@ -1,6 +1,6 @@ config IWLWIFI tristate "Intel Wireless WiFi Next Gen AGN - Wireless-N/Advanced-N/Ultimate-N (iwlwifi) " - depends on PCI && MAC80211 + depends on PCI && MAC80211 && HAS_IOMEM select FW_LOADER select NEW_LEDS select LEDS_CLASS diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c index ef76a39..389f99e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c +++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c @@ -1600,18 +1600,17 @@ static int iwl_trans_pcie_reclaim(struct iwl_trans *trans, int sta_id, int tid, static void iwl_trans_pcie_write8(struct iwl_trans *trans, u32 ofs, u8 val) { - iowrite8(val, IWL_TRANS_GET_PCIE_TRANS(trans)->hw_base + ofs); + writeb(val, IWL_TRANS_GET_PCIE_TRANS(trans)->hw_base + ofs); } static void iwl_trans_pcie_write32(struct iwl_trans *trans, u32 ofs, u32 val) { - iowrite32(val, IWL_TRANS_GET_PCIE_TRANS(trans)->hw_base + ofs); + writel(val, IWL_TRANS_GET_PCIE_TRANS(trans)->hw_base + ofs); } static u32 iwl_trans_pcie_read32(struct iwl_trans *trans, u32 ofs) { - u32 val = ioread32(IWL_TRANS_GET_PCIE_TRANS(trans)->hw_base + ofs); - return val; + return readl(IWL_TRANS_GET_PCIE_TRANS(trans)->hw_base + ofs); } static void iwl_trans_pcie_free(struct iwl_trans *trans) @@ -1629,7 +1628,7 @@ static void iwl_trans_pcie_free(struct iwl_trans *trans) } pci_disable_msi(trans_pcie->pci_dev); - pci_iounmap(trans_pcie->pci_dev, trans_pcie->hw_base); + iounmap(trans_pcie->hw_base); pci_release_regions(trans_pcie->pci_dev); pci_disable_device(trans_pcie->pci_dev); @@ -2258,9 +2257,9 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct iwl_shared *shrd, goto out_pci_disable_device; } - trans_pcie->hw_base = pci_iomap(pdev, 0, 0); + trans_pcie->hw_base = pci_ioremap_bar(pdev, 0); if (!trans_pcie->hw_base) { - dev_printk(KERN_ERR, &pdev->dev, "pci_iomap failed"); + dev_printk(KERN_ERR, &pdev->dev, "pci_ioremap_bar failed"); err = -ENODEV; goto out_pci_release_regions; }