diff options
Diffstat (limited to 'drivers/pci/hotplug/pciehp_hpc.c')
| -rw-r--r-- | drivers/pci/hotplug/pciehp_hpc.c | 517 |
1 files changed, 110 insertions, 407 deletions
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index 25d3aadfddb..ed901b5c279 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -218,72 +218,50 @@ static int pcie_cap_base = 0; /* Base of the PCI Express capability item struct static spinlock_t hpc_event_lock; DEFINE_DBG_BUFFER /* Debug string buffer for entire HPC defined here */ -static struct php_ctlr_state_s *php_ctlr_list_head; /* HPC state linked list */ static int ctlr_seq_num = 0; /* Controller sequence # */ -static spinlock_t list_lock; -static irqreturn_t pcie_isr(int IRQ, void *dev_id); - -static void start_int_poll_timer(struct php_ctlr_state_s *php_ctlr, int seconds); +static irqreturn_t pcie_isr(int irq, void *dev_id); +static void start_int_poll_timer(struct controller *ctrl, int sec); /* This is the interrupt polling timeout function. */ -static void int_poll_timeout(unsigned long lphp_ctlr) +static void int_poll_timeout(unsigned long data) { - struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *)lphp_ctlr; + struct controller *ctrl = (struct controller *)data; DBG_ENTER_ROUTINE - if ( !php_ctlr ) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return; - } - /* Poll for interrupt events. regs == NULL => polling */ - pcie_isr( 0, (void *)php_ctlr ); - - init_timer(&php_ctlr->int_poll_timer); + pcie_isr(0, ctrl); + init_timer(&ctrl->poll_timer); if (!pciehp_poll_time) pciehp_poll_time = 2; /* reset timer to poll in 2 secs if user doesn't specify at module installation*/ - start_int_poll_timer(php_ctlr, pciehp_poll_time); - - return; + start_int_poll_timer(ctrl, pciehp_poll_time); } /* This function starts the interrupt polling timer. */ -static void start_int_poll_timer(struct php_ctlr_state_s *php_ctlr, int seconds) +static void start_int_poll_timer(struct controller *ctrl, int sec) { - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return; - } - - if ( ( seconds <= 0 ) || ( seconds > 60 ) ) - seconds = 2; /* Clamp to sane value */ - - php_ctlr->int_poll_timer.function = &int_poll_timeout; - php_ctlr->int_poll_timer.data = (unsigned long)php_ctlr; /* Instance data */ - php_ctlr->int_poll_timer.expires = jiffies + seconds * HZ; - add_timer(&php_ctlr->int_poll_timer); - - return; + /* Clamp to sane value */ + if ((sec <= 0) || (sec > 60)) + sec = 2; + + ctrl->poll_timer.function = &int_poll_timeout; + ctrl->poll_timer.data = (unsigned long)ctrl; + ctrl->poll_timer.expires = jiffies + sec * HZ; + add_timer(&ctrl->poll_timer); } static int pcie_write_cmd(struct slot *slot, u16 cmd) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; int retval = 0; u16 slot_status; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(slot->ctrl->cap_base), slot_status); + retval = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (retval) { err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); return retval; @@ -295,7 +273,7 @@ static int pcie_write_cmd(struct slot *slot, u16 cmd) dbg("%s : CMD_COMPLETED not clear after 1 sec.\n", __FUNCTION__); } - retval = hp_register_write_word(php_ctlr->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), cmd | CMD_CMPL_INTR_ENABLE); + retval = hp_register_write_word(ctrl->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), cmd | CMD_CMPL_INTR_ENABLE); if (retval) { err("%s : hp_register_write_word SLOT_CTRL failed\n", __FUNCTION__); return retval; @@ -307,19 +285,12 @@ static int pcie_write_cmd(struct slot *slot, u16 cmd) static int hpc_check_lnk_status(struct controller *ctrl) { - struct php_ctlr_state_s *php_ctlr = ctrl->hpc_ctlr_handle; u16 lnk_status; int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_word(php_ctlr->pci_dev, LNK_STATUS(ctrl->cap_base), lnk_status); - + retval = hp_register_read_word(ctrl->pci_dev, LNK_STATUS(ctrl->cap_base), lnk_status); if (retval) { err("%s : hp_register_read_word LNK_STATUS failed\n", __FUNCTION__); return retval; @@ -340,20 +311,14 @@ static int hpc_check_lnk_status(struct controller *ctrl) static int hpc_get_attention_status(struct slot *slot, u8 *status) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_ctrl; u8 atten_led_state; int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl); - + retval = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); if (retval) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return retval; @@ -385,27 +350,21 @@ static int hpc_get_attention_status(struct slot *slot, u8 *status) return 0; } -static int hpc_get_power_status(struct slot * slot, u8 *status) +static int hpc_get_power_status(struct slot *slot, u8 *status) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_ctrl; u8 pwr_state; int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl); - + retval = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); if (retval) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return retval; } - dbg("%s: SLOT_CTRL %x value read %x\n", __FUNCTION__, SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl); + dbg("%s: SLOT_CTRL %x value read %x\n", __FUNCTION__, SLOT_CTRL(ctrl->cap_base), slot_ctrl); pwr_state = (slot_ctrl & PWR_CTRL) >> 10; @@ -428,19 +387,13 @@ static int hpc_get_power_status(struct slot * slot, u8 *status) static int hpc_get_latch_status(struct slot *slot, u8 *status) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_status; int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(slot->ctrl->cap_base), slot_status); - + retval = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (retval) { err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); return retval; @@ -454,20 +407,14 @@ static int hpc_get_latch_status(struct slot *slot, u8 *status) static int hpc_get_adapter_status(struct slot *slot, u8 *status) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_status; u8 card_state; int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(slot->ctrl->cap_base), slot_status); - + retval = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (retval) { err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); return retval; @@ -479,22 +426,16 @@ static int hpc_get_adapter_status(struct slot *slot, u8 *status) return 0; } -static int hpc_query_power_fault(struct slot * slot) +static int hpc_query_power_fault(struct slot *slot) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_status; u8 pwr_fault; int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(slot->ctrl->cap_base), slot_status); - + retval = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (retval) { err("%s : Cannot check for power fault\n", __FUNCTION__); return retval; @@ -507,24 +448,14 @@ static int hpc_query_power_fault(struct slot * slot) static int hpc_set_attention_status(struct slot *slot, u8 value) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_cmd = 0; u16 slot_ctrl; int rc = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return -1; - } - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl); - + rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); if (rc) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return rc; @@ -556,25 +487,14 @@ static int hpc_set_attention_status(struct slot *slot, u8 value) static void hpc_set_green_led_on(struct slot *slot) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_cmd; u16 slot_ctrl; int rc = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return ; - } - - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return ; - } - - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl); - + rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); if (rc) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return; @@ -592,25 +512,14 @@ static void hpc_set_green_led_on(struct slot *slot) static void hpc_set_green_led_off(struct slot *slot) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_cmd; u16 slot_ctrl; int rc = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return ; - } - - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return ; - } - - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl); - + rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); if (rc) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return; @@ -629,25 +538,14 @@ static void hpc_set_green_led_off(struct slot *slot) static void hpc_set_green_led_blink(struct slot *slot) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_cmd; u16 slot_ctrl; int rc = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return ; - } - - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return ; - } - - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl); - + rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); if (rc) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return; @@ -664,119 +562,39 @@ static void hpc_set_green_led_blink(struct slot *slot) return; } -int pcie_get_ctlr_slot_config(struct controller *ctrl, - int *num_ctlr_slots, /* number of slots in this HPC; only 1 in PCIE */ - int *first_device_num, /* PCI dev num of the first slot in this PCIE */ - int *physical_slot_num, /* phy slot num of the first slot in this PCIE */ - u8 *ctrlcap) -{ - struct php_ctlr_state_s *php_ctlr = ctrl->hpc_ctlr_handle; - u32 slot_cap; - int rc = 0; - - DBG_ENTER_ROUTINE - - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - *first_device_num = 0; - *num_ctlr_slots = 1; - - rc = hp_register_read_dword(php_ctlr->pci_dev, SLOT_CAP(ctrl->cap_base), slot_cap); - - if (rc) { - err("%s : hp_register_read_dword SLOT_CAP failed\n", __FUNCTION__); - return -1; - } - - *physical_slot_num = slot_cap >> 19; - dbg("%s: PSN %d \n", __FUNCTION__, *physical_slot_num); - - *ctrlcap = slot_cap & 0x0000007f; - - DBG_LEAVE_ROUTINE - return 0; -} - static void hpc_release_ctlr(struct controller *ctrl) { - struct php_ctlr_state_s *php_ctlr = ctrl->hpc_ctlr_handle; - struct php_ctlr_state_s *p, *p_prev; - DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return ; - } - - if (pciehp_poll_mode) { - del_timer(&php_ctlr->int_poll_timer); - } else { - if (php_ctlr->irq) { - free_irq(php_ctlr->irq, ctrl); - php_ctlr->irq = 0; - } - } - if (php_ctlr->pci_dev) - php_ctlr->pci_dev = NULL; - - spin_lock(&list_lock); - p = php_ctlr_list_head; - p_prev = NULL; - while (p) { - if (p == php_ctlr) { - if (p_prev) - p_prev->pnext = p->pnext; - else - php_ctlr_list_head = p->pnext; - break; - } else { - p_prev = p; - p = p->pnext; - } - } - spin_unlock(&list_lock); - - kfree(php_ctlr); + if (pciehp_poll_mode) + del_timer(&ctrl->poll_timer); + else + free_irq(ctrl->pci_dev->irq, ctrl); DBG_LEAVE_ROUTINE - } static int hpc_power_on_slot(struct slot * slot) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_cmd; u16 slot_ctrl, slot_status; - int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - dbg("%s: slot->hp_slot %x\n", __FUNCTION__, slot->hp_slot); - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return -1; - } /* Clear sticky power-fault bit from previous power failures */ - hp_register_read_word(php_ctlr->pci_dev, - SLOT_STATUS(slot->ctrl->cap_base), slot_status); + hp_register_read_word(ctrl->pci_dev, + SLOT_STATUS(ctrl->cap_base), slot_status); slot_status &= PWR_FAULT_DETECTED; if (slot_status) - hp_register_write_word(php_ctlr->pci_dev, - SLOT_STATUS(slot->ctrl->cap_base), slot_status); - - retval = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl); + hp_register_write_word(ctrl->pci_dev, + SLOT_STATUS(ctrl->cap_base), slot_status); + retval = hp_register_read_word(ctrl->pci_dev, + SLOT_CTRL(ctrl->cap_base), slot_ctrl); if (retval) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return retval; @@ -807,27 +625,16 @@ static int hpc_power_on_slot(struct slot * slot) static int hpc_power_off_slot(struct slot * slot) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_cmd; u16 slot_ctrl; - int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - dbg("%s: slot->hp_slot %x\n", __FUNCTION__, slot->hp_slot); - slot->hp_slot = 0; - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return -1; - } - retval = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl); + retval = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); if (retval) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return retval; @@ -861,38 +668,15 @@ static int hpc_power_off_slot(struct slot * slot) return retval; } -static irqreturn_t pcie_isr(int IRQ, void *dev_id) +static irqreturn_t pcie_isr(int irq, void *dev_id) { - struct controller *ctrl = NULL; - struct php_ctlr_state_s *php_ctlr; - u8 schedule_flag = 0; + struct controller *ctrl = (struct controller *)dev_id; u16 slot_status, intr_detect, intr_loc; u16 temp_word; int hp_slot = 0; /* only 1 slot per PCI Express port */ int rc = 0; - if (!dev_id) - return IRQ_NONE; - - if (!pciehp_poll_mode) { - ctrl = dev_id; - php_ctlr = ctrl->hpc_ctlr_handle; - } else { - php_ctlr = dev_id; - ctrl = (struct controller *)php_ctlr->callback_instance_id; - } - - if (!ctrl) { - dbg("%s: dev_id %p ctlr == NULL\n", __FUNCTION__, (void*) dev_id); - return IRQ_NONE; - } - - if (!php_ctlr) { - dbg("%s: php_ctlr == NULL\n", __FUNCTION__); - return IRQ_NONE; - } - - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + rc = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (rc) { err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); return IRQ_NONE; @@ -910,7 +694,7 @@ static irqreturn_t pcie_isr(int IRQ, void *dev_id) dbg("%s: intr_loc %x\n", __FUNCTION__, intr_loc); /* Mask Hot-plug Interrupt Enable */ if (!pciehp_poll_mode) { - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); + rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); if (rc) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return IRQ_NONE; @@ -919,13 +703,13 @@ static irqreturn_t pcie_isr(int IRQ, void *dev_id) dbg("%s: hp_register_read_word SLOT_CTRL with value %x\n", __FUNCTION__, temp_word); temp_word = (temp_word & ~HP_INTR_ENABLE & ~CMD_CMPL_INTR_ENABLE) | 0x00; - rc = hp_register_write_word(php_ctlr->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); + rc = hp_register_write_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); if (rc) { err("%s : hp_register_write_word SLOT_CTRL failed\n", __FUNCTION__); return IRQ_NONE; } - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + rc = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (rc) { err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); return IRQ_NONE; @@ -934,7 +718,7 @@ static irqreturn_t pcie_isr(int IRQ, void *dev_id) /* Clear command complete interrupt caused by this write */ temp_word = 0x1f; - rc = hp_register_write_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); + rc = hp_register_write_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); if (rc) { err("%s : hp_register_write_word SLOT_STATUS failed\n", __FUNCTION__); return IRQ_NONE; @@ -948,29 +732,28 @@ static irqreturn_t pcie_isr(int IRQ, void *dev_id) wake_up_interruptible(&ctrl->queue); } - if ((php_ctlr->switch_change_callback) && (intr_loc & MRL_SENS_CHANGED)) - schedule_flag += php_ctlr->switch_change_callback( - hp_slot, php_ctlr->callback_instance_id); - if ((php_ctlr->attention_button_callback) && (intr_loc & ATTN_BUTTN_PRESSED)) - schedule_flag += php_ctlr->attention_button_callback( - hp_slot, php_ctlr->callback_instance_id); - if ((php_ctlr->presence_change_callback) && (intr_loc & PRSN_DETECT_CHANGED)) - schedule_flag += php_ctlr->presence_change_callback( - hp_slot , php_ctlr->callback_instance_id); - if ((php_ctlr->power_fault_callback) && (intr_loc & PWR_FAULT_DETECTED)) - schedule_flag += php_ctlr->power_fault_callback( - hp_slot, php_ctlr->callback_instance_id); + if (intr_loc & MRL_SENS_CHANGED) + pciehp_handle_switch_change(hp_slot, ctrl); + + if (intr_loc & ATTN_BUTTN_PRESSED) + pciehp_handle_attention_button(hp_slot, ctrl); + + if (intr_loc & PRSN_DETECT_CHANGED) + pciehp_handle_presence_change(hp_slot, ctrl); + + if (intr_loc & PWR_FAULT_DETECTED) + pciehp_handle_power_fault(hp_slot, ctrl); /* Clear all events after serving them */ temp_word = 0x1F; - rc = hp_register_write_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); + rc = hp_register_write_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); if (rc) { err("%s : hp_register_write_word SLOT_STATUS failed\n", __FUNCTION__); return IRQ_NONE; } /* Unmask Hot-plug Interrupt Enable */ if (!pciehp_poll_mode) { - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); + rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); if (rc) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return IRQ_NONE; @@ -979,13 +762,13 @@ static irqreturn_t pcie_isr(int IRQ, void *dev_id) dbg("%s: Unmask Hot-plug Interrupt Enable\n", __FUNCTION__); temp_word = (temp_word & ~HP_INTR_ENABLE) | HP_INTR_ENABLE; - rc = hp_register_write_word(php_ctlr->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); + rc = hp_register_write_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); if (rc) { err("%s : hp_register_write_word SLOT_CTRL failed\n", __FUNCTION__); return IRQ_NONE; } - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + rc = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (rc) { err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); return IRQ_NONE; @@ -993,7 +776,7 @@ static irqreturn_t pcie_isr(int IRQ, void *dev_id) /* Clear command complete interrupt caused by this write */ temp_word = 0x1F; - rc = hp_register_write_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); + rc = hp_register_write_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); if (rc) { err("%s : hp_register_write_word SLOT_STATUS failed\n", __FUNCTION__); return IRQ_NONE; @@ -1006,25 +789,14 @@ static irqreturn_t pcie_isr(int IRQ, void *dev_id) static int hpc_get_max_lnk_speed (struct slot *slot, enum pci_bus_speed *value) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; enum pcie_link_speed lnk_speed; u32 lnk_cap; int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_dword(php_ctlr->pci_dev, LNK_CAP(slot->ctrl->cap_base), lnk_cap); - + retval = hp_register_read_dword(ctrl->pci_dev, LNK_CAP(ctrl->cap_base), lnk_cap); if (retval) { err("%s : hp_register_read_dword LNK_CAP failed\n", __FUNCTION__); return retval; @@ -1047,25 +819,14 @@ static int hpc_get_max_lnk_speed (struct slot *slot, enum pci_bus_speed *value) static int hpc_get_max_lnk_width (struct slot *slot, enum pcie_link_width *value) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; enum pcie_link_width lnk_wdth; u32 lnk_cap; int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_dword(php_ctlr->pci_dev, LNK_CAP(slot->ctrl->cap_base), lnk_cap); - + retval = hp_register_read_dword(ctrl->pci_dev, LNK_CAP(ctrl->cap_base), lnk_cap); if (retval) { err("%s : hp_register_read_dword LNK_CAP failed\n", __FUNCTION__); return retval; @@ -1109,25 +870,14 @@ static int hpc_get_max_lnk_width (struct slot *slot, enum pcie_link_width *value static int hpc_get_cur_lnk_speed (struct slot *slot, enum pci_bus_speed *value) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; enum pcie_link_speed lnk_speed = PCI_SPEED_UNKNOWN; int retval = 0; u16 lnk_status; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_word(php_ctlr->pci_dev, LNK_STATUS(slot->ctrl->cap_base), lnk_status); - + retval = hp_register_read_word(ctrl->pci_dev, LNK_STATUS(ctrl->cap_base), lnk_status); if (retval) { err("%s : hp_register_read_word LNK_STATUS failed\n", __FUNCTION__); return retval; @@ -1150,25 +900,14 @@ static int hpc_get_cur_lnk_speed (struct slot *slot, enum pci_bus_speed *value) static int hpc_get_cur_lnk_width (struct slot *slot, enum pcie_link_width *value) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; enum pcie_link_width lnk_wdth = PCIE_LNK_WIDTH_UNKNOWN; int retval = 0; u16 lnk_status; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_word(php_ctlr->pci_dev, LNK_STATUS(slot->ctrl->cap_base), lnk_status); - + retval = hp_register_read_word(ctrl->pci_dev, LNK_STATUS(ctrl->cap_base), lnk_status); if (retval) { err("%s : hp_register_read_word LNK_STATUS failed\n", __FUNCTION__); return retval; @@ -1305,8 +1044,6 @@ int pciehp_acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev) int pcie_init(struct controller * ctrl, struct pcie_device *dev) { - struct php_ctlr_state_s *php_ctlr, *p; - void *instance_id = ctrl; int rc; static int first = 1; u16 temp_word; @@ -1319,18 +1056,8 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) DBG_ENTER_ROUTINE - spin_lock_init(&list_lock); - php_ctlr = kmalloc(sizeof(struct php_ctlr_state_s), GFP_KERNEL); - - if (!php_ctlr) { /* allocate controller state data */ - err("%s: HPC controller memory allocation error!\n", __FUNCTION__); - goto abort; - } - - memset(php_ctlr, 0, sizeof(struct php_ctlr_state_s)); - pdev = dev->port; - php_ctlr->pci_dev = pdev; /* save pci_dev in context */ + ctrl->pci_dev = pdev; /* save pci_dev in context */ dbg("%s: hotplug controller vendor id 0x%x device id 0x%x\n", __FUNCTION__, pdev->vendor, pdev->device); @@ -1359,7 +1086,7 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) goto abort_free_ctlr; } - rc = hp_register_read_dword(php_ctlr->pci_dev, SLOT_CAP(ctrl->cap_base), slot_cap); + rc = hp_register_read_dword(ctrl->pci_dev, SLOT_CAP(ctrl->cap_base), slot_cap); if (rc) { err("%s : hp_register_read_word CAP_REG failed\n", __FUNCTION__); goto abort_free_ctlr; @@ -1371,14 +1098,14 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) goto abort_free_ctlr; } /* For debugging purpose */ - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + rc = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (rc) { err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); goto abort_free_ctlr; } dbg("%s: SLOT_STATUS offset %x slot_status %x\n", __FUNCTION__, SLOT_STATUS(ctrl->cap_base), slot_status); - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); + rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); if (rc) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); goto abort_free_ctlr; @@ -1405,19 +1132,11 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) /* setup wait queue */ init_waitqueue_head(&ctrl->queue); - /* find the IRQ */ - php_ctlr->irq = dev->irq; - - /* Save interrupt callback info */ - php_ctlr->attention_button_callback = pciehp_handle_attention_button; - php_ctlr->switch_change_callback = pciehp_handle_switch_change; - php_ctlr->presence_change_callback = pciehp_handle_presence_change; - php_ctlr->power_fault_callback = pciehp_handle_power_fault; - php_ctlr->callback_instance_id = instance_id; - /* return PCI Controller Info */ - php_ctlr->slot_device_offset = 0; - php_ctlr->num_slots = 1; + ctrl->slot_device_offset = 0; + ctrl->num_slots = 1; + ctrl->first_slot = slot_cap >> 19; + ctrl->ctrlcap = slot_cap & 0x0000007f; /* Mask Hot-plug Interrupt Enable */ rc = hp_register_read_word(pdev, SLOT_CTRL(ctrl->cap_base), temp_word); @@ -1435,33 +1154,35 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) goto abort_free_ctlr; } - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + rc = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (rc) { err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); goto abort_free_ctlr; } temp_word = 0x1F; /* Clear all events */ - rc = hp_register_write_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); + rc = hp_register_write_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); if (rc) { err("%s : hp_register_write_word SLOT_STATUS failed\n", __FUNCTION__); goto abort_free_ctlr; } - if (pciehp_poll_mode) {/* Install interrupt polling code */ - /* Install and start the interrupt polling timer */ - init_timer(&php_ctlr->int_poll_timer); - start_int_poll_timer( php_ctlr, 10 ); /* start with 10 second delay */ + if (pciehp_poll_mode) { + /* Install interrupt polling timer. Start with 10 sec delay */ + init_timer(&ctrl->poll_timer); + start_int_poll_timer(ctrl, 10); } else { /* Installs the interrupt handler */ - rc = request_irq(php_ctlr->irq, pcie_isr, IRQF_SHARED, MY_NAME, (void *) ctrl); - dbg("%s: request_irq %d for hpc%d (returns %d)\n", __FUNCTION__, php_ctlr->irq, ctlr_seq_num, rc); + rc = request_irq(ctrl->pci_dev->irq, pcie_isr, IRQF_SHARED, + MY_NAME, (void *)ctrl); + dbg("%s: request_irq %d for hpc%d (returns %d)\n", + __FUNCTION__, ctrl->pci_dev->irq, ctlr_seq_num, rc); if (rc) { - err("Can't get irq %d for the hotplug controller\n", php_ctlr->irq); + err("Can't get irq %d for the hotplug controller\n", + ctrl->pci_dev->irq); goto abort_free_ctlr; } } - dbg("pciehp ctrl b:d:f:irq=0x%x:%x:%x:%x\n", pdev->bus->number, PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn), dev->irq); @@ -1496,14 +1217,14 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) err("%s : hp_register_write_word SLOT_CTRL failed\n", __FUNCTION__); goto abort_free_irq; } - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + rc = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (rc) { err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); goto abort_disable_intr; } temp_word = 0x1F; /* Clear all events */ - rc = hp_register_write_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); + rc = hp_register_write_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); if (rc) { err("%s : hp_register_write_word SLOT_STATUS failed\n", __FUNCTION__); goto abort_disable_intr; @@ -1518,24 +1239,7 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) goto abort_disable_intr; } - /* Add this HPC instance into the HPC list */ - spin_lock(&list_lock); - if (php_ctlr_list_head == 0) { - php_ctlr_list_head = php_ctlr; - p = php_ctlr_list_head; - p->pnext = NULL; - } else { - p = php_ctlr_list_head; - - while (p->pnext) - p = p->pnext; - - p->pnext = php_ctlr; - } - spin_unlock(&list_lock); - ctlr_seq_num++; - ctrl->hpc_ctlr_handle = php_ctlr; ctrl->hpc_ops = &pciehp_hpc_ops; DBG_LEAVE_ROUTINE @@ -1553,14 +1257,13 @@ abort_disable_intr: abort_free_irq: if (pciehp_poll_mode) - del_timer_sync(&php_ctlr->int_poll_timer); + del_timer_sync(&ctrl->poll_timer); else - free_irq(php_ctlr->irq, ctrl); + free_irq(ctrl->pci_dev->irq, ctrl); abort_free_ctlr: pcie_cap_base = saved_cap_base; - kfree(php_ctlr); -abort: + DBG_LEAVE_ROUTINE return -1; } |