Messages in this thread Patch in this message | | | Subject | [PATCH 2/2]remove msi save/restore code in specific driver | From | Shaohua Li <> | Date | Tue, 27 Dec 2005 10:05:22 +0800 |
| |
Remove pcie port driver's msi save/restore code.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
---
linux-2.6.15-rc5-root/drivers/pci/pcie/portdrv.h | 1 linux-2.6.15-rc5-root/drivers/pci/pcie/portdrv_pci.c | 66 +------------------ 2 files changed, 4 insertions(+), 63 deletions(-)
diff -puN drivers/pci/pcie/portdrv_pci.c~remove_driver_msi_save_restore drivers/pci/pcie/portdrv_pci.c --- linux-2.6.15-rc5/drivers/pci/pcie/portdrv_pci.c~remove_driver_msi_save_restore 2005-12-27 08:45:48.000000000 +0800 +++ linux-2.6.15-rc5-root/drivers/pci/pcie/portdrv_pci.c 2005-12-27 08:51:25.000000000 +0800 @@ -30,75 +30,16 @@ MODULE_LICENSE("GPL"); /* global data */ static const char device_name[] = "pcieport-driver"; -static void pci_save_msi_state(struct pci_dev *dev) +static int pcie_portdrv_save_config(struct pci_dev *dev) { - struct pcie_port_device_ext *p_ext = pci_get_drvdata(dev); - int i = 0, pos; - u16 control; - - if ((pos = pci_find_capability(dev, PCI_CAP_ID_MSI)) <= 0) - return; - - pci_read_config_dword(dev, pos, &p_ext->saved_msi_config_space[i++]); - control = p_ext->saved_msi_config_space[0] >> 16; - pci_read_config_dword(dev, pos + PCI_MSI_ADDRESS_LO, - &p_ext->saved_msi_config_space[i++]); - if (control & PCI_MSI_FLAGS_64BIT) { - pci_read_config_dword(dev, pos + PCI_MSI_ADDRESS_HI, - &p_ext->saved_msi_config_space[i++]); - pci_read_config_dword(dev, pos + PCI_MSI_DATA_64, - &p_ext->saved_msi_config_space[i++]); - } else - pci_read_config_dword(dev, pos + PCI_MSI_DATA_32, - &p_ext->saved_msi_config_space[i++]); - if (control & PCI_MSI_FLAGS_MASKBIT) - pci_read_config_dword(dev, pos + PCI_MSI_MASK_BIT, - &p_ext->saved_msi_config_space[i++]); -} - -static void pci_restore_msi_state(struct pci_dev *dev) -{ - struct pcie_port_device_ext *p_ext = pci_get_drvdata(dev); - int i = 0, pos; - u16 control; - - if ((pos = pci_find_capability(dev, PCI_CAP_ID_MSI)) <= 0) - return; - - control = p_ext->saved_msi_config_space[i++] >> 16; - pci_write_config_word(dev, pos + PCI_MSI_FLAGS, control); - pci_write_config_dword(dev, pos + PCI_MSI_ADDRESS_LO, - p_ext->saved_msi_config_space[i++]); - if (control & PCI_MSI_FLAGS_64BIT) { - pci_write_config_dword(dev, pos + PCI_MSI_ADDRESS_HI, - p_ext->saved_msi_config_space[i++]); - pci_write_config_dword(dev, pos + PCI_MSI_DATA_64, - p_ext->saved_msi_config_space[i++]); - } else - pci_write_config_dword(dev, pos + PCI_MSI_DATA_32, - p_ext->saved_msi_config_space[i++]); - if (control & PCI_MSI_FLAGS_MASKBIT) - pci_write_config_dword(dev, pos + PCI_MSI_MASK_BIT, - p_ext->saved_msi_config_space[i++]); -} - -static void pcie_portdrv_save_config(struct pci_dev *dev) -{ - struct pcie_port_device_ext *p_ext = pci_get_drvdata(dev); - - pci_save_state(dev); - if (p_ext->interrupt_mode == PCIE_PORT_MSI_MODE) - pci_save_msi_state(dev); + return pci_save_state(dev); } static int pcie_portdrv_restore_config(struct pci_dev *dev) { - struct pcie_port_device_ext *p_ext = pci_get_drvdata(dev); int retval; pci_restore_state(dev); - if (p_ext->interrupt_mode == PCIE_PORT_MSI_MODE) - pci_restore_msi_state(dev); retval = pci_enable_device(dev); if (retval) return retval; @@ -149,7 +90,8 @@ static int pcie_portdrv_suspend (struct { int ret = pcie_port_device_suspend(dev, state); - pcie_portdrv_save_config(dev); + if (!ret) + ret = pcie_portdrv_save_config(dev); return ret; } diff -puN drivers/pci/pcie/portdrv.h~remove_driver_msi_save_restore drivers/pci/pcie/portdrv.h --- linux-2.6.15-rc5/drivers/pci/pcie/portdrv.h~remove_driver_msi_save_restore 2005-12-27 08:49:07.000000000 +0800 +++ linux-2.6.15-rc5-root/drivers/pci/pcie/portdrv.h 2005-12-27 08:49:17.000000000 +0800 @@ -29,7 +29,6 @@ struct pcie_port_device_ext { int interrupt_mode; /* [0:INTx | 1:MSI | 2:MSI-X] */ - unsigned int saved_msi_config_space[5]; }; extern struct bus_type pcie_port_bus_type; _
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |