diff options
Diffstat (limited to 'arch/powerpc/platforms/pseries/eeh.c')
-rw-r--r-- | arch/powerpc/platforms/pseries/eeh.c | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index 3c8658ea13f2..b5fcecb06731 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -610,85 +610,6 @@ int eeh_reset_pe(struct eeh_dev *edev) return -1; } -/** Save and restore of PCI BARs - * - * Although firmware will set up BARs during boot, it doesn't - * set up device BAR's after a device reset, although it will, - * if requested, set up bridge configuration. Thus, we need to - * configure the PCI devices ourselves. - */ - -/** - * eeh_restore_one_device_bars - Restore the Base Address Registers for one device - * @edev: PCI device associated EEH device - * - * Loads the PCI configuration space base address registers, - * the expansion ROM base address, the latency timer, and etc. - * from the saved values in the device node. - */ -static inline void eeh_restore_one_device_bars(struct eeh_dev *edev) -{ - int i; - u32 cmd; - struct device_node *dn = eeh_dev_to_of_node(edev); - - if (!edev->phb) - return; - - for (i=4; i<10; i++) { - eeh_ops->write_config(dn, i*4, 4, edev->config_space[i]); - } - - /* 12 == Expansion ROM Address */ - eeh_ops->write_config(dn, 12*4, 4, edev->config_space[12]); - -#define BYTE_SWAP(OFF) (8*((OFF)/4)+3-(OFF)) -#define SAVED_BYTE(OFF) (((u8 *)(edev->config_space))[BYTE_SWAP(OFF)]) - - eeh_ops->write_config(dn, PCI_CACHE_LINE_SIZE, 1, - SAVED_BYTE(PCI_CACHE_LINE_SIZE)); - - eeh_ops->write_config(dn, PCI_LATENCY_TIMER, 1, - SAVED_BYTE(PCI_LATENCY_TIMER)); - - /* max latency, min grant, interrupt pin and line */ - eeh_ops->write_config(dn, 15*4, 4, edev->config_space[15]); - - /* Restore PERR & SERR bits, some devices require it, - * don't touch the other command bits - */ - eeh_ops->read_config(dn, PCI_COMMAND, 4, &cmd); - if (edev->config_space[1] & PCI_COMMAND_PARITY) - cmd |= PCI_COMMAND_PARITY; - else - cmd &= ~PCI_COMMAND_PARITY; - if (edev->config_space[1] & PCI_COMMAND_SERR) - cmd |= PCI_COMMAND_SERR; - else - cmd &= ~PCI_COMMAND_SERR; - eeh_ops->write_config(dn, PCI_COMMAND, 4, cmd); -} - -/** - * eeh_restore_bars - Restore the PCI config space info - * @edev: EEH device - * - * This routine performs a recursive walk to the children - * of this device as well. - */ -void eeh_restore_bars(struct eeh_dev *edev) -{ - struct device_node *dn; - if (!edev) - return; - - if ((edev->mode & EEH_MODE_SUPPORTED) && !IS_BRIDGE(edev->class_code)) - eeh_restore_one_device_bars(edev); - - for_each_child_of_node(eeh_dev_to_of_node(edev), dn) - eeh_restore_bars(of_node_to_eeh_dev(dn)); -} - /** * eeh_save_bars - Save device bars * @edev: PCI device associated EEH device |