From 1b95ce8fc9c12fdb60047f2f9950f29e76e7c66d Mon Sep 17 00:00:00 2001 From: Alex Williamson Date: Thu, 8 Aug 2013 14:10:20 -0600 Subject: PCI: Remove aer_do_secondary_bus_reset() One PCI bus reset function to rule them all. Signed-off-by: Alex Williamson Signed-off-by: Bjorn Helgaas --- drivers/pci/pcie/aer/aerdrv.c | 2 +- drivers/pci/pcie/aer/aerdrv.h | 1 - drivers/pci/pcie/aer/aerdrv_core.c | 35 +---------------------------------- 3 files changed, 2 insertions(+), 36 deletions(-) (limited to 'drivers/pci/pcie/aer') diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c index 76ef634caf6f..0bf82a20a0fb 100644 --- a/drivers/pci/pcie/aer/aerdrv.c +++ b/drivers/pci/pcie/aer/aerdrv.c @@ -352,7 +352,7 @@ static pci_ers_result_t aer_root_reset(struct pci_dev *dev) reg32 &= ~ROOT_PORT_INTR_ON_MESG_MASK; pci_write_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND, reg32); - aer_do_secondary_bus_reset(dev); + pci_reset_bridge_secondary_bus(dev); dev_printk(KERN_DEBUG, &dev->dev, "Root Port link has been reset\n"); /* Clear Root Error Status */ diff --git a/drivers/pci/pcie/aer/aerdrv.h b/drivers/pci/pcie/aer/aerdrv.h index 90ea3e88041f..84420b7c9456 100644 --- a/drivers/pci/pcie/aer/aerdrv.h +++ b/drivers/pci/pcie/aer/aerdrv.h @@ -106,7 +106,6 @@ static inline pci_ers_result_t merge_result(enum pci_ers_result orig, } extern struct bus_type pcie_port_bus_type; -void aer_do_secondary_bus_reset(struct pci_dev *dev); int aer_init(struct pcie_device *dev); void aer_isr(struct work_struct *work); void aer_print_error(struct pci_dev *dev, struct aer_err_info *info); diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c index 8b68ae59b7b6..85ca36f2136d 100644 --- a/drivers/pci/pcie/aer/aerdrv_core.c +++ b/drivers/pci/pcie/aer/aerdrv_core.c @@ -366,39 +366,6 @@ static pci_ers_result_t broadcast_error_message(struct pci_dev *dev, return result_data.result; } -/** - * aer_do_secondary_bus_reset - perform secondary bus reset - * @dev: pointer to bridge's pci_dev data structure - * - * Invoked when performing link reset at Root Port or Downstream Port. - */ -void aer_do_secondary_bus_reset(struct pci_dev *dev) -{ - u16 p2p_ctrl; - - /* Assert Secondary Bus Reset */ - pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &p2p_ctrl); - p2p_ctrl |= PCI_BRIDGE_CTL_BUS_RESET; - pci_write_config_word(dev, PCI_BRIDGE_CONTROL, p2p_ctrl); - - /* - * we should send hot reset message for 2ms to allow it time to - * propagate to all downstream ports - */ - msleep(2); - - /* De-assert Secondary Bus Reset */ - p2p_ctrl &= ~PCI_BRIDGE_CTL_BUS_RESET; - pci_write_config_word(dev, PCI_BRIDGE_CONTROL, p2p_ctrl); - - /* - * System software must wait for at least 100ms from the end - * of a reset of one or more device before it is permitted - * to issue Configuration Requests to those devices. - */ - msleep(200); -} - /** * default_reset_link - default reset function * @dev: pointer to pci_dev data structure @@ -408,7 +375,7 @@ void aer_do_secondary_bus_reset(struct pci_dev *dev) */ static pci_ers_result_t default_reset_link(struct pci_dev *dev) { - aer_do_secondary_bus_reset(dev); + pci_reset_bridge_secondary_bus(dev); dev_printk(KERN_DEBUG, &dev->dev, "downstream link has been reset\n"); return PCI_ERS_RESULT_RECOVERED; } -- cgit v1.2.3