X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fpci%2Fhotplug%2Fpciehp_core.c;h=1e8506e0fd87cf8adf67d27ca9e243bcc4496142;hb=5b1a960d180e9660a87b0c661a754efabc1b1d3a;hp=701243ea5894953fe99b26a601827e3790120e24;hpb=ed6cbcf2ac706aa47194fd2f7a99865cc06833d7;p=powerpc.git diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c index 701243ea58..1e8506e0fd 100644 --- a/drivers/pci/hotplug/pciehp_core.c +++ b/drivers/pci/hotplug/pciehp_core.c @@ -39,6 +39,7 @@ int pciehp_debug; int pciehp_poll_mode; int pciehp_poll_time; +int pciehp_force; struct controller *pciehp_ctrl_list; #define DRIVER_VERSION "0.4" @@ -52,9 +53,11 @@ MODULE_LICENSE("GPL"); module_param(pciehp_debug, bool, 0644); module_param(pciehp_poll_mode, bool, 0644); module_param(pciehp_poll_time, int, 0644); +module_param(pciehp_force, bool, 0644); MODULE_PARM_DESC(pciehp_debug, "Debugging mode enabled or not"); MODULE_PARM_DESC(pciehp_poll_mode, "Using polling mechanism for hot-plug events or not"); MODULE_PARM_DESC(pciehp_poll_time, "Polling mechanism frequency, in seconds"); +MODULE_PARM_DESC(pciehp_force, "Force pciehp, even if _OSC and OSHP are missing"); #define PCIE_MODULE_NAME "pciehp" @@ -100,72 +103,80 @@ static void release_slot(struct hotplug_slot *hotplug_slot) static int init_slots(struct controller *ctrl) { - struct slot *new_slot; + struct slot *slot; + struct hpc_ops *hpc_ops; + struct hotplug_slot *hotplug_slot; + struct hotplug_slot_info *hotplug_slot_info; u8 number_of_slots; u8 slot_device; u32 slot_number; int result = -ENOMEM; - dbg("%s\n",__FUNCTION__); - number_of_slots = ctrl->num_slots; slot_device = ctrl->slot_device_offset; slot_number = ctrl->first_slot; while (number_of_slots) { - new_slot = kmalloc(sizeof(*new_slot), GFP_KERNEL); - if (!new_slot) + slot = kmalloc(sizeof(*slot), GFP_KERNEL); + if (!slot) goto error; - memset(new_slot, 0, sizeof(struct slot)); - new_slot->hotplug_slot = - kmalloc(sizeof(*(new_slot->hotplug_slot)), + memset(slot, 0, sizeof(struct slot)); + slot->hotplug_slot = + kmalloc(sizeof(*(slot->hotplug_slot)), GFP_KERNEL); - if (!new_slot->hotplug_slot) + if (!slot->hotplug_slot) goto error_slot; - memset(new_slot->hotplug_slot, 0, sizeof(struct hotplug_slot)); + hotplug_slot = slot->hotplug_slot; + memset(hotplug_slot, 0, sizeof(struct hotplug_slot)); - new_slot->hotplug_slot->info = - kmalloc(sizeof(*(new_slot->hotplug_slot->info)), + hotplug_slot->info = + kmalloc(sizeof(*(hotplug_slot->info)), GFP_KERNEL); - if (!new_slot->hotplug_slot->info) + if (!hotplug_slot->info) goto error_hpslot; - memset(new_slot->hotplug_slot->info, 0, + hotplug_slot_info = hotplug_slot->info; + memset(hotplug_slot_info, 0, sizeof(struct hotplug_slot_info)); - new_slot->hotplug_slot->name = kmalloc(SLOT_NAME_SIZE, - GFP_KERNEL); - if (!new_slot->hotplug_slot->name) + hotplug_slot->name = kmalloc(SLOT_NAME_SIZE, GFP_KERNEL); + if (!hotplug_slot->name) goto error_info; - new_slot->ctrl = ctrl; - new_slot->bus = ctrl->slot_bus; - new_slot->device = slot_device; - new_slot->hpc_ops = ctrl->hpc_ops; + slot->ctrl = ctrl; + slot->bus = ctrl->slot_bus; + slot->device = slot_device; + slot->hpc_ops = hpc_ops = ctrl->hpc_ops; - new_slot->number = ctrl->first_slot; - new_slot->hp_slot = slot_device - ctrl->slot_device_offset; + slot->number = ctrl->first_slot; + slot->hp_slot = slot_device - ctrl->slot_device_offset; /* register this slot with the hotplug pci core */ - new_slot->hotplug_slot->private = new_slot; - new_slot->hotplug_slot->release = &release_slot; - make_slot_name(new_slot->hotplug_slot->name, SLOT_NAME_SIZE, new_slot); - new_slot->hotplug_slot->ops = &pciehp_hotplug_slot_ops; - - new_slot->hpc_ops->get_power_status(new_slot, &(new_slot->hotplug_slot->info->power_status)); - new_slot->hpc_ops->get_attention_status(new_slot, &(new_slot->hotplug_slot->info->attention_status)); - new_slot->hpc_ops->get_latch_status(new_slot, &(new_slot->hotplug_slot->info->latch_status)); - new_slot->hpc_ops->get_adapter_status(new_slot, &(new_slot->hotplug_slot->info->adapter_status)); - - dbg("Registering bus=%x dev=%x hp_slot=%x sun=%x slot_device_offset=%x\n", - new_slot->bus, new_slot->device, new_slot->hp_slot, new_slot->number, ctrl->slot_device_offset); - result = pci_hp_register (new_slot->hotplug_slot); + hotplug_slot->private = slot; + hotplug_slot->release = &release_slot; + make_slot_name(hotplug_slot->name, SLOT_NAME_SIZE, slot); + hotplug_slot->ops = &pciehp_hotplug_slot_ops; + + hpc_ops->get_power_status(slot, + &(hotplug_slot_info->power_status)); + hpc_ops->get_attention_status(slot, + &(hotplug_slot_info->attention_status)); + hpc_ops->get_latch_status(slot, + &(hotplug_slot_info->latch_status)); + hpc_ops->get_adapter_status(slot, + &(hotplug_slot_info->adapter_status)); + + dbg("Registering bus=%x dev=%x hp_slot=%x sun=%x " + "slot_device_offset=%x\n", + slot->bus, slot->device, slot->hp_slot, slot->number, + ctrl->slot_device_offset); + result = pci_hp_register(hotplug_slot); if (result) { err ("pci_hp_register failed with error %d\n", result); goto error_name; } - new_slot->next = ctrl->slot; - ctrl->slot = new_slot; + slot->next = ctrl->slot; + ctrl->slot = slot; number_of_slots--; slot_device++; @@ -175,13 +186,13 @@ static int init_slots(struct controller *ctrl) return 0; error_name: - kfree(new_slot->hotplug_slot->name); + kfree(hotplug_slot->name); error_info: - kfree(new_slot->hotplug_slot->info); + kfree(hotplug_slot_info); error_hpslot: - kfree(new_slot->hotplug_slot); + kfree(hotplug_slot); error_slot: - kfree(new_slot); + kfree(slot); error: return result; } @@ -362,7 +373,6 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ u8 value; struct pci_dev *pdev; - dbg("%s: Called by hp_drv\n", __FUNCTION__); ctrl = kmalloc(sizeof(*ctrl), GFP_KERNEL); if (!ctrl) { err("%s : out of memory\n", __FUNCTION__); @@ -370,8 +380,6 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ } memset(ctrl, 0, sizeof(struct controller)); - dbg("%s: DRV_thread pid = %d\n", __FUNCTION__, current->pid); - pdev = dev->port; ctrl->pci_dev = pdev; @@ -389,7 +397,6 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ rc = -ENOMEM; goto err_out_unmap_mmio_region; } - dbg("%s: ctrl->pci_bus %p\n", __FUNCTION__, ctrl->pci_bus); memcpy (ctrl->pci_bus, pdev->bus, sizeof (*ctrl->pci_bus)); ctrl->bus = pdev->bus->number; /* ctrl bus */ ctrl->slot_bus = pdev->subordinate->number; /* bus controlled by this HPC */ @@ -419,7 +426,6 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ } t_slot = pciehp_find_slot(ctrl, first_device_num); - dbg("%s: t_slot %p\n", __FUNCTION__, t_slot); /* Finish setting up the hot plug ctrl device */ ctrl->next_event = 0; @@ -433,16 +439,15 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ } /* Wait for exclusive access to hardware */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); t_slot->hpc_ops->get_adapter_status(t_slot, &value); /* Check if slot is occupied */ - dbg("%s: adpater value %x\n", __FUNCTION__, value); if ((POWER_CTRL(ctrl->ctrlcap)) && !value) { rc = t_slot->hpc_ops->power_off_slot(t_slot); /* Power off slot if not occupied*/ if (rc) { /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); goto err_out_free_ctrl_slot; } else /* Wait for the command to complete */ @@ -450,7 +455,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ } /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return 0; @@ -507,7 +512,7 @@ static void __exit unload_pciehpd(void) } -int hpdriver_context = 0; +static int hpdriver_context = 0; static void pciehp_remove (struct pcie_device *device) { @@ -585,7 +590,6 @@ static void __exit pcied_cleanup(void) dbg("unload_pciehpd()\n"); unload_pciehpd(); - dbg("pcie_port_service_unregister\n"); pcie_port_service_unregister(&hpdriver_portdrv); info(DRIVER_DESC " version: " DRIVER_VERSION " unloaded\n");