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Commit be7bce25 authored by Taku Izumi's avatar Taku Izumi Committed by Jesse Barnes
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PCI hotplug: shpchp: message refinement 



This patch refines messages in shpchp module.  The main changes are as
follows:

 - remove the trailing "."
 - remove __func__ as much as possible
 - capitalize the first letter of messages
 - show PCI device address including its domain

Signed-off-by: default avatarTaku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
parent f98ca311

drivers/pci/hotplug/shpchp.h

+4 −5
Original line number Diff line number Diff line
@@ -253,7 +253,7 @@ static inline struct slot *shpchp_find_slot(struct controller *ctrl, u8 device) 
			return slot;

	}



	ctrl_err(ctrl, "%s: slot (device=0x%x) not found\n", __func__, device);

	ctrl_err(ctrl, "Slot (device=0x%02x) not found\n", device);

	return NULL;

}
@@ -288,8 +288,8 @@ static inline void amd_pogo_errata_restore_misc_reg(struct slot *p_slot) 
	perr_set = pcix_bridge_errors_reg & PERR_OBSERVED_MASK;

	if (perr_set) {

		ctrl_dbg(p_slot->ctrl,

			 "%s  W1C: Bridge_Errors[ PERR_OBSERVED = %08X]\n",

			 __func__ , perr_set);

			 "Bridge_Errors[ PERR_OBSERVED = %08X] (W1C)\n",

			 perr_set);



		pci_write_config_dword(p_slot->ctrl->pci_dev, PCIX_MISC_BRIDGE_ERRORS_OFFSET, perr_set);

	}
@@ -298,8 +298,7 @@ static inline void amd_pogo_errata_restore_misc_reg(struct slot *p_slot) 
	pci_read_config_dword(p_slot->ctrl->pci_dev, PCIX_MEM_BASE_LIMIT_OFFSET, &pcix_mem_base_reg);

	rse_set = pcix_mem_base_reg & RSE_MASK;

	if (rse_set) {

		ctrl_dbg(p_slot->ctrl, "%s  W1C: Memory_Base_Limit[ RSE ]\n",

			 __func__);

		ctrl_dbg(p_slot->ctrl, "Memory_Base_Limit[ RSE ] (W1C)\n");



		pci_write_config_dword(p_slot->ctrl->pci_dev, PCIX_MEM_BASE_LIMIT_OFFSET, rse_set);

	}

drivers/pci/hotplug/shpchp_core.c

+18 −16
Original line number Diff line number Diff line
@@ -89,7 +89,7 @@ static void release_slot(struct hotplug_slot *hotplug_slot) 
{

	struct slot *slot = hotplug_slot->private;



	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",

	ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",

		 __func__, slot_name(slot));



	kfree(slot->hotplug_slot->info);
@@ -136,9 +136,11 @@ static int init_slots(struct controller *ctrl) 
		snprintf(name, SLOT_NAME_SIZE, "%d", slot->number);

		hotplug_slot->ops = &shpchp_hotplug_slot_ops;



		ctrl_dbg(ctrl, "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);

 		ctrl_dbg(ctrl, "Registering domain:bus:dev=%04x:%02x:%02x "

 			 "hp_slot=%x sun=%x slot_device_offset=%x\n",

 			 pci_domain_nr(ctrl->pci_dev->subordinate),

 			 slot->bus, slot->device, slot->hp_slot, slot->number,

 			 ctrl->slot_device_offset);

		retval = pci_hp_register(slot->hotplug_slot,

				ctrl->pci_dev->subordinate, slot->device, name);

		if (retval) {
@@ -189,7 +191,7 @@ static int set_attention_status (struct hotplug_slot *hotplug_slot, u8 status) 
{

	struct slot *slot = get_slot(hotplug_slot);



	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",

	ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",

		 __func__, slot_name(slot));



	hotplug_slot->info->attention_status = status;
@@ -202,7 +204,7 @@ static int enable_slot (struct hotplug_slot *hotplug_slot) 
{

	struct slot *slot = get_slot(hotplug_slot);



	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",

	ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",

		 __func__, slot_name(slot));



	return shpchp_sysfs_enable_slot(slot);
@@ -212,7 +214,7 @@ static int disable_slot (struct hotplug_slot *hotplug_slot) 
{

	struct slot *slot = get_slot(hotplug_slot);



	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",

	ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",

		 __func__, slot_name(slot));



	return shpchp_sysfs_disable_slot(slot);
@@ -223,7 +225,7 @@ static int get_power_status (struct hotplug_slot *hotplug_slot, u8 *value) 
	struct slot *slot = get_slot(hotplug_slot);

	int retval;



	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",

	ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",

		 __func__, slot_name(slot));



	retval = slot->hpc_ops->get_power_status(slot, value);
@@ -238,7 +240,7 @@ static int get_attention_status (struct hotplug_slot *hotplug_slot, u8 *value) 
	struct slot *slot = get_slot(hotplug_slot);

	int retval;



	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",

	ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",

		 __func__, slot_name(slot));



	retval = slot->hpc_ops->get_attention_status(slot, value);
@@ -253,7 +255,7 @@ static int get_latch_status (struct hotplug_slot *hotplug_slot, u8 *value) 
	struct slot *slot = get_slot(hotplug_slot);

	int retval;



	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",

	ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",

		 __func__, slot_name(slot));



	retval = slot->hpc_ops->get_latch_status(slot, value);
@@ -268,7 +270,7 @@ static int get_adapter_status (struct hotplug_slot *hotplug_slot, u8 *value) 
	struct slot *slot = get_slot(hotplug_slot);

	int retval;



	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",

	ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",

		 __func__, slot_name(slot));



	retval = slot->hpc_ops->get_adapter_status(slot, value);
@@ -284,7 +286,7 @@ static int get_max_bus_speed(struct hotplug_slot *hotplug_slot, 
	struct slot *slot = get_slot(hotplug_slot);

	int retval;



	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",

	ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",

		 __func__, slot_name(slot));



	retval = slot->hpc_ops->get_max_bus_speed(slot, value);
@@ -299,7 +301,7 @@ static int get_cur_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_sp 
	struct slot *slot = get_slot(hotplug_slot);

	int retval;



	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",

	ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",

		 __func__, slot_name(slot));



	retval = slot->hpc_ops->get_cur_bus_speed(slot, value);
@@ -331,14 +333,14 @@ static int shpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 


	ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL);

	if (!ctrl) {

		dev_err(&pdev->dev, "%s : out of memory\n", __func__);

		dev_err(&pdev->dev, "%s: Out of memory\n", __func__);

		goto err_out_none;

	}

	INIT_LIST_HEAD(&ctrl->slot_list);



	rc = shpc_init(ctrl, pdev);

	if (rc) {

		ctrl_dbg(ctrl, "controller initialization failed\n");

		ctrl_dbg(ctrl, "Controller initialization failed\n");

		goto err_out_free_ctrl;

	}
@@ -347,7 +349,7 @@ static int shpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 
	/* Setup the slot information structures */

	rc = init_slots(ctrl);

	if (rc) {

		ctrl_err(ctrl, "slot initialization failed\n");

		ctrl_err(ctrl, "Slot initialization failed\n");

		goto err_out_release_ctlr;

	}

drivers/pci/hotplug/shpchp_ctrl.c

+25 −29
Original line number Diff line number Diff line
@@ -62,7 +62,7 @@ u8 shpchp_handle_attention_button(u8 hp_slot, struct controller *ctrl) 
	u32 event_type;



	/* Attention Button Change */

	ctrl_dbg(ctrl, "Attention button interrupt received.\n");

	ctrl_dbg(ctrl, "Attention button interrupt received\n");



	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);

	p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));
@@ -86,13 +86,13 @@ u8 shpchp_handle_switch_change(u8 hp_slot, struct controller *ctrl) 
	u32 event_type;



	/* Switch Change */

	ctrl_dbg(ctrl, "Switch interrupt received.\n");

	ctrl_dbg(ctrl, "Switch interrupt received\n");



	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);

	p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));

	p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);

	ctrl_dbg(ctrl, "%s: Card present %x Power status %x\n",

		 __func__, p_slot->presence_save, p_slot->pwr_save);

	ctrl_dbg(ctrl, "Card present %x Power status %x\n",

		 p_slot->presence_save, p_slot->pwr_save);



	if (getstatus) {

		/*
@@ -123,7 +123,7 @@ u8 shpchp_handle_presence_change(u8 hp_slot, struct controller *ctrl) 
	u32 event_type;



	/* Presence Change */

	ctrl_dbg(ctrl, "Presence/Notify input change.\n");

	ctrl_dbg(ctrl, "Presence/Notify input change\n");



	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);
@@ -158,7 +158,7 @@ u8 shpchp_handle_power_fault(u8 hp_slot, struct controller *ctrl) 
	u32 event_type;



	/* Power fault */

	ctrl_dbg(ctrl, "Power fault interrupt received.\n");

	ctrl_dbg(ctrl, "Power fault interrupt received\n");



	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);
@@ -178,7 +178,7 @@ u8 shpchp_handle_power_fault(u8 hp_slot, struct controller *ctrl) 
		event_type = INT_POWER_FAULT;

		/* set power fault status for this board */

		p_slot->status = 0xFF;

		ctrl_info(ctrl, "power fault bit %x set\n", hp_slot);

		ctrl_info(ctrl, "Power fault bit %x set\n", hp_slot);

	}



	queue_interrupt_event(p_slot, event_type);
@@ -194,7 +194,7 @@ static int change_bus_speed(struct controller *ctrl, struct slot *p_slot, 
{

	int rc = 0;



	ctrl_dbg(ctrl, "%s: change to speed %d\n", __func__, speed);

	ctrl_dbg(ctrl, "Change speed to %d\n", speed);

	if ((rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, speed))) {

		ctrl_err(ctrl, "%s: Issue of set bus speed mode command "

			 "failed\n", __func__);
@@ -215,8 +215,8 @@ static int fix_bus_speed(struct controller *ctrl, struct slot *pslot, 
	 */

	if (flag) {

		if (asp < bsp) {

			ctrl_err(ctrl, "%s: speed of bus %x and adapter %x "

				 "mismatch\n", __func__, bsp, asp);

			ctrl_err(ctrl, "Speed of bus %x and adapter %x "

				 "mismatch\n", bsp, asp);

			rc = WRONG_BUS_FREQUENCY;

		}

		return rc;
@@ -246,6 +246,7 @@ static int board_added(struct slot *p_slot) 
	int rc = 0;

	enum pci_bus_speed asp, bsp, msp;

	struct controller *ctrl = p_slot->ctrl;

	struct pci_bus *parent = ctrl->pci_dev->subordinate;



	hp_slot = p_slot->device - ctrl->slot_device_offset;
@@ -256,7 +257,7 @@ static int board_added(struct slot *p_slot) 
	/* Power on slot without connecting to bus */

	rc = p_slot->hpc_ops->power_on_slot(p_slot);

	if (rc) {

		ctrl_err(ctrl, "%s: Failed to power on slot\n", __func__);

		ctrl_err(ctrl, "Failed to power on slot\n");

		return -1;

	}
@@ -272,29 +273,27 @@ static int board_added(struct slot *p_slot) 


		/* turn on board, blink green LED, turn off Amber LED */

		if ((rc = p_slot->hpc_ops->slot_enable(p_slot))) {

			ctrl_err(ctrl, "%s: Issue of Slot Enable command"

				 " failed\n", __func__);

			ctrl_err(ctrl, "Issue of Slot Enable command failed\n");

			return rc;

		}

	}



	rc = p_slot->hpc_ops->get_adapter_speed(p_slot, &asp);

	if (rc) {

		ctrl_err(ctrl, "%s: Can't get adapter speed or bus mode "

			 "mismatch\n", __func__);

		ctrl_err(ctrl, "Can't get adapter speed or "

			 "bus mode mismatch\n");

		return WRONG_BUS_FREQUENCY;

	}



	rc = p_slot->hpc_ops->get_cur_bus_speed(p_slot, &bsp);

	if (rc) {

		ctrl_err(ctrl, "%s: Can't get bus operation speed\n", __func__);

		ctrl_err(ctrl, "Can't get bus operation speed\n");

		return WRONG_BUS_FREQUENCY;

	}



	rc = p_slot->hpc_ops->get_max_bus_speed(p_slot, &msp);

	if (rc) {

		ctrl_err(ctrl, "%s: Can't get max bus operation speed\n",

			 __func__);

		ctrl_err(ctrl, "Can't get max bus operation speed\n");

		msp = bsp;

	}
@@ -312,8 +311,7 @@ static int board_added(struct slot *p_slot) 


	/* turn on board, blink green LED, turn off Amber LED */

	if ((rc = p_slot->hpc_ops->slot_enable(p_slot))) {

		ctrl_err(ctrl, "%s: Issue of Slot Enable command failed\n",

			 __func__);

		ctrl_err(ctrl, "Issue of Slot Enable command failed\n");

		return rc;

	}
@@ -324,15 +322,15 @@ static int board_added(struct slot *p_slot) 
	/* Check for a power fault */

	if (p_slot->status == 0xFF) {

		/* power fault occurred, but it was benign */

		ctrl_dbg(ctrl, "%s: power fault\n", __func__);

		ctrl_dbg(ctrl, "%s: Power fault\n", __func__);

		rc = POWER_FAILURE;

		p_slot->status = 0;

		goto err_exit;

	}



	if (shpchp_configure_device(p_slot)) {

		ctrl_err(ctrl, "Cannot add device at 0x%x:0x%x\n",

			 p_slot->bus, p_slot->device);

		ctrl_err(ctrl, "Cannot add device at %04x:%02x:%02x\n",

			 pci_domain_nr(parent), p_slot->bus, p_slot->device);

		goto err_exit;

	}
@@ -373,7 +371,7 @@ static int remove_board(struct slot *p_slot) 
	hp_slot = p_slot->device - ctrl->slot_device_offset;

	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);



	ctrl_dbg(ctrl, "In %s, hp_slot = %d\n", __func__, hp_slot);

	ctrl_dbg(ctrl, "%s: hp_slot = %d\n", __func__, hp_slot);



	/* Change status to shutdown */

	if (p_slot->is_a_board)
@@ -389,8 +387,7 @@ static int remove_board(struct slot *p_slot) 


	rc = p_slot->hpc_ops->set_attention_status(p_slot, 0);

	if (rc) {

		ctrl_err(ctrl, "%s: Issue of Set Attention command failed\n",

			 __func__);

		ctrl_err(ctrl, "Issue of Set Attention command failed\n");

		return rc;

	}
@@ -526,7 +523,6 @@ static void handle_button_press_event(struct slot *p_slot) 
		 */

		ctrl_info(ctrl, "Button cancel on Slot(%s)\n",

			  slot_name(p_slot));

		ctrl_dbg(ctrl, "%s: button cancel\n", __func__);

		cancel_delayed_work(&p_slot->work);

		if (p_slot->state == BLINKINGOFF_STATE)

			p_slot->hpc_ops->green_led_on(p_slot);
@@ -565,7 +561,7 @@ static void interrupt_event_handler(struct work_struct *work) 
		handle_button_press_event(p_slot);

		break;

	case INT_POWER_FAULT:

		ctrl_dbg(p_slot->ctrl, "%s: power fault\n", __func__);

		ctrl_dbg(p_slot->ctrl, "%s: Power fault\n", __func__);

		p_slot->hpc_ops->set_attention_status(p_slot, 1);

		p_slot->hpc_ops->green_led_off(p_slot);

		break;
@@ -660,7 +656,7 @@ static int shpchp_disable_slot (struct slot *p_slot) 
	}

	rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);

	if (rc || !getstatus) {

		ctrl_info(ctrl, "Already disabled slot(%s)\n",

		ctrl_info(ctrl, "Already disabled on slot(%s)\n",

			  slot_name(p_slot));

		goto out;

	}

drivers/pci/hotplug/shpchp_hpc.c

+33 −40
Original line number Diff line number Diff line
@@ -320,8 +320,7 @@ static int shpc_write_cmd(struct slot *slot, u8 t_slot, u8 cmd) 


	if (!shpc_poll_ctrl_busy(ctrl)) {

		/* After 1 sec and and the controller is still busy */

		ctrl_err(ctrl, "%s : Controller is still busy after 1 sec.\n",

			 __func__);

		ctrl_err(ctrl, "Controller is still busy after 1 sec\n");

		retval = -EBUSY;

		goto out;

	}
@@ -344,8 +343,9 @@ static int shpc_write_cmd(struct slot *slot, u8 t_slot, u8 cmd) 


	cmd_status = hpc_check_cmd_status(slot->ctrl);

	if (cmd_status) {

		ctrl_err(ctrl, "%s: Failed to issued command 0x%x "

			 "(error code = %d)\n", __func__, cmd, cmd_status);

		ctrl_err(ctrl,

			 "Failed to issued command 0x%x (error code = %d)\n",

			 cmd, cmd_status);

		retval = -EIO;

	}

 out:
@@ -364,15 +364,15 @@ static int hpc_check_cmd_status(struct controller *ctrl) 
		break;

	case 1:

		retval = SWITCH_OPEN;

		ctrl_err(ctrl, "%s: Switch opened!\n", __func__);

		ctrl_err(ctrl, "Switch opened!\n");

		break;

	case 2:

		retval = INVALID_CMD;

		ctrl_err(ctrl, "%s: Invalid HPC command!\n", __func__);

		ctrl_err(ctrl, "Invalid HPC command!\n");

		break;

	case 4:

		retval = INVALID_SPEED_MODE;

		ctrl_err(ctrl, "%s: Invalid bus speed/mode!\n", __func__);

		ctrl_err(ctrl, "Invalid bus speed/mode!\n");

		break;

	default:

		retval = cmd_status;
@@ -773,8 +773,8 @@ static irqreturn_t shpc_isr(int irq, void *dev_id) 
			continue;



		slot_reg = shpc_readl(ctrl, SLOT_REG(hp_slot));

		ctrl_dbg(ctrl, "%s: Slot %x with intr, slot register = %x\n",

			 __func__, hp_slot, slot_reg);

		ctrl_dbg(ctrl, "Slot %x with intr, slot register = %x\n",

			 hp_slot, slot_reg);



		if (slot_reg & MRL_CHANGE_DETECTED)

			shpchp_handle_switch_change(hp_slot, ctrl);
@@ -949,6 +949,7 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev) 
	u8 i;



	ctrl->pci_dev = pdev;  /* pci_dev of the P2P bridge */

	ctrl_dbg(ctrl, "Hotplug Controller:\n");



	if ((pdev->vendor == PCI_VENDOR_ID_AMD) || (pdev->device ==

				PCI_DEVICE_ID_AMD_GOLAM_7450)) {
@@ -958,38 +959,33 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev) 
	} else {

		ctrl->cap_offset = pci_find_capability(pdev, PCI_CAP_ID_SHPC);

		if (!ctrl->cap_offset) {

			ctrl_err(ctrl, "%s : cap_offset == 0\n", __func__);

			ctrl_err(ctrl, "Cannot find PCI capability\n");

			goto abort;

		}

		ctrl_dbg(ctrl, "%s: cap_offset = %x\n", __func__,

			 ctrl->cap_offset);

		ctrl_dbg(ctrl, " cap_offset = %x\n", ctrl->cap_offset);



		rc = shpc_indirect_read(ctrl, 0, &shpc_base_offset);

		if (rc) {

			ctrl_err(ctrl, "%s: cannot read base_offset\n",

				 __func__);

			ctrl_err(ctrl, "Cannot read base_offset\n");

			goto abort;

		}



		rc = shpc_indirect_read(ctrl, 3, &tempdword);

		if (rc) {

			ctrl_err(ctrl, "%s: cannot read slot config\n",

				 __func__);

			ctrl_err(ctrl, "Cannot read slot config\n");

			goto abort;

		}

		num_slots = tempdword & SLOT_NUM;

		ctrl_dbg(ctrl, "%s: num_slots (indirect) %x\n",

			 __func__, num_slots);

		ctrl_dbg(ctrl, " num_slots (indirect) %x\n", num_slots);



		for (i = 0; i < 9 + num_slots; i++) {

			rc = shpc_indirect_read(ctrl, i, &tempdword);

			if (rc) {

				ctrl_err(ctrl, "%s: cannot read creg "

					 "(index = %d)\n", __func__, i);

				ctrl_err(ctrl,

					 "Cannot read creg (index = %d)\n", i);

				goto abort;

			}

			ctrl_dbg(ctrl, "%s: offset %d: value %x\n",

				 __func__, i, tempdword);

			ctrl_dbg(ctrl, " offset %d: value %x\n", i, tempdword);

		}



		ctrl->mmio_base =
@@ -1003,25 +999,25 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev) 


	rc = pci_enable_device(pdev);

	if (rc) {

		ctrl_err(ctrl, "%s: pci_enable_device failed\n", __func__);

		ctrl_err(ctrl, "pci_enable_device failed\n");

		goto abort;

	}



	if (!request_mem_region(ctrl->mmio_base, ctrl->mmio_size, MY_NAME)) {

		ctrl_err(ctrl, "%s: cannot reserve MMIO region\n", __func__);

		ctrl_err(ctrl, "Cannot reserve MMIO region\n");

		rc = -1;

		goto abort;

	}



	ctrl->creg = ioremap(ctrl->mmio_base, ctrl->mmio_size);

	if (!ctrl->creg) {

		ctrl_err(ctrl, "%s: cannot remap MMIO region %lx @ %lx\n",

			 __func__, ctrl->mmio_size, ctrl->mmio_base);

		ctrl_err(ctrl, "Cannot remap MMIO region %lx @ %lx\n",

			 ctrl->mmio_size, ctrl->mmio_base);

		release_mem_region(ctrl->mmio_base, ctrl->mmio_size);

		rc = -1;

		goto abort;

	}

	ctrl_dbg(ctrl, "%s: ctrl->creg %p\n", __func__, ctrl->creg);

	ctrl_dbg(ctrl, "ctrl->creg %p\n", ctrl->creg);



	mutex_init(&ctrl->crit_sect);

	mutex_init(&ctrl->cmd_lock);
@@ -1040,21 +1036,21 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev) 


	/* Mask Global Interrupt Mask & Command Complete Interrupt Mask */

	tempdword = shpc_readl(ctrl, SERR_INTR_ENABLE);

	ctrl_dbg(ctrl, "%s: SERR_INTR_ENABLE = %x\n", __func__, tempdword);

	ctrl_dbg(ctrl, "SERR_INTR_ENABLE = %x\n", tempdword);

	tempdword |= (GLOBAL_INTR_MASK  | GLOBAL_SERR_MASK |

		      COMMAND_INTR_MASK | ARBITER_SERR_MASK);

	tempdword &= ~SERR_INTR_RSVDZ_MASK;

	shpc_writel(ctrl, SERR_INTR_ENABLE, tempdword);

	tempdword = shpc_readl(ctrl, SERR_INTR_ENABLE);

	ctrl_dbg(ctrl, "%s: SERR_INTR_ENABLE = %x\n", __func__, tempdword);

	ctrl_dbg(ctrl, "SERR_INTR_ENABLE = %x\n", tempdword);



	/* Mask the MRL sensor SERR Mask of individual slot in

	 * Slot SERR-INT Mask & clear all the existing event if any

	 */

	for (hp_slot = 0; hp_slot < ctrl->num_slots; hp_slot++) {

		slot_reg = shpc_readl(ctrl, SLOT_REG(hp_slot));

		ctrl_dbg(ctrl, "%s: Default Logical Slot Register %d "

			 "value %x\n", __func__, hp_slot, slot_reg);

		ctrl_dbg(ctrl, "Default Logical Slot Register %d value %x\n",

			 hp_slot, slot_reg);

		slot_reg |= (PRSNT_CHANGE_INTR_MASK | ISO_PFAULT_INTR_MASK |

			     BUTTON_PRESS_INTR_MASK | MRL_CHANGE_INTR_MASK |

			     CON_PFAULT_INTR_MASK   | MRL_CHANGE_SERR_MASK |
@@ -1079,8 +1075,8 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev) 


		rc = request_irq(ctrl->pci_dev->irq, shpc_isr, IRQF_SHARED,

				 MY_NAME, (void *)ctrl);

		ctrl_dbg(ctrl, "%s: request_irq %d for hpc%d (returns %d)\n",

			 __func__, ctrl->pci_dev->irq,

		ctrl_dbg(ctrl, "request_irq %d for hpc%d (returns %d)\n",

			 ctrl->pci_dev->irq,

		    atomic_read(&shpchp_num_controllers), rc);

		if (rc) {

			ctrl_err(ctrl, "Can't get irq %d for the hotplug "
@@ -1088,9 +1084,7 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev) 
			goto abort_iounmap;

		}

	}

	ctrl_dbg(ctrl, "%s: HPC at b:d:f:irq=0x%x:%x:%x:%x\n",

		 __func__, pdev->bus->number, PCI_SLOT(pdev->devfn),

		 PCI_FUNC(pdev->devfn), pdev->irq);

	ctrl_dbg(ctrl, "HPC at %s irq=%x\n", pci_name(pdev), pdev->irq);



	/*

	 * If this is the first controller to be initialized,
@@ -1109,8 +1103,8 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev) 
	 */

	for (hp_slot = 0; hp_slot < ctrl->num_slots; hp_slot++) {

		slot_reg = shpc_readl(ctrl, SLOT_REG(hp_slot));

		ctrl_dbg(ctrl, "%s: Default Logical Slot Register %d "

			 "value %x\n", __func__, hp_slot, slot_reg);

		ctrl_dbg(ctrl, "Default Logical Slot Register %d value %x\n",

			 hp_slot, slot_reg);

		slot_reg &= ~(PRSNT_CHANGE_INTR_MASK | ISO_PFAULT_INTR_MASK |

			      BUTTON_PRESS_INTR_MASK | MRL_CHANGE_INTR_MASK |

			      CON_PFAULT_INTR_MASK | SLOT_REG_RSVDZ_MASK);
@@ -1123,8 +1117,7 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev) 
			       SERR_INTR_RSVDZ_MASK);

		shpc_writel(ctrl, SERR_INTR_ENABLE, tempdword);

		tempdword = shpc_readl(ctrl, SERR_INTR_ENABLE);

		ctrl_dbg(ctrl, "%s: SERR_INTR_ENABLE = %x\n",

			 __func__, tempdword);

		ctrl_dbg(ctrl, "SERR_INTR_ENABLE = %x\n", tempdword);

	}



	return 0;

drivers/pci/hotplug/shpchp_pci.c

+6 −8
Original line number Diff line number Diff line
@@ -49,9 +49,7 @@ static void program_fw_provided_values(struct pci_dev *dev) 
	/* use default values if we can't get them from firmware */

	if (get_hp_params_from_firmware(dev, &hpp) ||

	    !hpp.t0 || (hpp.t0->revision > 1)) {

		printk(KERN_WARNING

		       "%s: Could not get hotplug parameters. Use defaults\n",

		       __func__);

		warn("Could not get hotplug parameters. Use defaults\n");

		hpp.t0 = &hpp.type0_data;

		hpp.t0->revision = 0;

		hpp.t0->cache_line_size = 8;
@@ -105,9 +103,9 @@ int __ref shpchp_configure_device(struct slot *p_slot) 


	dev = pci_get_slot(parent, PCI_DEVFN(p_slot->device, 0));

	if (dev) {

		ctrl_err(ctrl,

			 "Device %s already exists at %x:%x, cannot hot-add\n",

			 pci_name(dev), p_slot->bus, p_slot->device);

		ctrl_err(ctrl, "Device %s already exists "

			 "at %04x:%02x:%02x, cannot hot-add\n", pci_name(dev),

			 pci_domain_nr(parent), p_slot->bus, p_slot->device);

		pci_dev_put(dev);

		return -EINVAL;

	}
@@ -173,8 +171,8 @@ int shpchp_unconfigure_device(struct slot *p_slot) 
	struct pci_bus *parent = p_slot->ctrl->pci_dev->subordinate;

	struct controller *ctrl = p_slot->ctrl;



	ctrl_dbg(ctrl, "%s: bus/dev = %x/%x\n",

		 __func__, p_slot->bus, p_slot->device);

	ctrl_dbg(ctrl, "%s: domain:bus:dev = %04x:%02x:%02x\n",

		 __func__, pci_domain_nr(parent), p_slot->bus, p_slot->device);



	for (j=0; j<8 ; j++) {

		struct pci_dev* temp = pci_get_slot(parent,