diff options
| author | Shaohua Li | 2006-02-08 10:11:40 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2006-03-23 23:35:14 +0100 |
| commit | 75cde0e25787c1af341a128b350c36df24e5397d (patch) | |
| tree | df10cc84b3a172bf441697f56a519ac56a78642d /drivers/pci/pcie | |
| parent | [PATCH] PCI: make MSI quirk inheritable from the pci bus (diff) | |
| download | kernel-qcow2-linux-75cde0e25787c1af341a128b350c36df24e5397d.tar.gz kernel-qcow2-linux-75cde0e25787c1af341a128b350c36df24e5397d.tar.xz kernel-qcow2-linux-75cde0e25787c1af341a128b350c36df24e5397d.zip | |
[PATCH] PCI: remove msi save/restore code in specific driver
Remove pcie port driver's msi save/restore code.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/pci/pcie')
| -rw-r--r-- | drivers/pci/pcie/portdrv.h | 1 | ||||
| -rw-r--r-- | drivers/pci/pcie/portdrv_pci.c | 66 |
2 files changed, 4 insertions, 63 deletions
diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h index a63bd8f72601..1d317d22ee89 100644 --- a/drivers/pci/pcie/portdrv.h +++ b/drivers/pci/pcie/portdrv.h @@ -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; diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c index 02260141dc81..50bfc1b2f3bf 100644 --- a/drivers/pci/pcie/portdrv_pci.c +++ b/drivers/pci/pcie/portdrv_pci.c @@ -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 pci_dev *dev, pm_message_t state) { int ret = pcie_port_device_suspend(dev, state); - pcie_portdrv_save_config(dev); + if (!ret) + ret = pcie_portdrv_save_config(dev); return ret; } |