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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6

Browse Source 
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  PCI: remove unused resource assignment in pci_read_bridge_bases()
  PCI hotplug: shpchp: message refinement
  PCI hotplug: shpchp: replace printk with dev_printk
  PCI: add routines for debugging and handling lost interrupts
  PCI hotplug: pciehp: message refinement
  PCI: fix ARI code to be compatible with mixed ARI/non-ARI systems
  PCI hotplug: cpqphp: fix kernel NULL pointer dereference
This commit is contained in:
Linus Torvalds 2008-10-23 19:31:34 -07:00
commit 3a2c5dad6c
16 changed files with 378 additions and 265 deletions
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3
drivers/pci/Makefile
View File

@ -3,7 +3,8 @@
#
obj-y += access.o bus.o probe.o remove.o pci.o quirks.o slot.o \
pci-driver.o search.o pci-sysfs.o rom.o setup-res.o
pci-driver.o search.o pci-sysfs.o rom.o setup-res.o \
irq.o
obj-$(CONFIG_PROC_FS) += proc.o
# Build PCI Express stuff if needed

2
drivers/pci/hotplug/cpqphp_core.c
View File

@ -433,7 +433,7 @@ static int ctrl_slot_setup(struct controller *ctrl,
slot->number, ctrl->slot_device_offset,
slot_number);
result = pci_hp_register(hotplug_slot,
ctrl->pci_dev->subordinate,
ctrl->pci_dev->bus,
slot->device,
name);
if (result) {

2
drivers/pci/hotplug/pciehp.h
View File

@ -188,7 +188,7 @@ static inline struct slot *pciehp_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;
}

38
drivers/pci/hotplug/pciehp_core.c
View File

@ -184,7 +184,7 @@ 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__, hotplug_slot_name(hotplug_slot));
kfree(hotplug_slot->info);
@ -216,9 +216,11 @@ static int init_slots(struct controller *ctrl)
slot->hotplug_slot = hotplug_slot;
snprintf(name, SLOT_NAME_SIZE, "%u", slot->number);
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(hotplug_slot,
ctrl->pci_dev->subordinate,
slot->device,
@ -238,7 +240,7 @@ static int init_slots(struct controller *ctrl)
&hotplug_slot_attr_lock.attr);
if (retval) {
pci_hp_deregister(hotplug_slot);
ctrl_err(ctrl, "cannot create additional sysfs "
ctrl_err(ctrl, "Cannot create additional sysfs "
"entries\n");
goto error_info;
}
@ -273,7 +275,7 @@ static int set_attention_status(struct hotplug_slot *hotplug_slot, u8 status)
{
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));
hotplug_slot->info->attention_status = status;
@ -289,7 +291,7 @@ static int enable_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));
return pciehp_sysfs_enable_slot(slot);
@ -300,7 +302,7 @@ static int disable_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));
return pciehp_sysfs_disable_slot(slot);
@ -311,7 +313,7 @@ static int get_power_status(struct hotplug_slot *hotplug_slot, u8 *value)
struct slot *slot = hotplug_slot->private;
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);
@ -326,7 +328,7 @@ static int get_attention_status(struct hotplug_slot *hotplug_slot, u8 *value)
struct slot *slot = hotplug_slot->private;
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);
@ -341,7 +343,7 @@ static int get_latch_status(struct hotplug_slot *hotplug_slot, u8 *value)
struct slot *slot = hotplug_slot->private;
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);
@ -356,7 +358,7 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value)
struct slot *slot = hotplug_slot->private;
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);
@ -372,7 +374,7 @@ static int get_max_bus_speed(struct hotplug_slot *hotplug_slot,
struct slot *slot = hotplug_slot->private;
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);
@ -387,7 +389,7 @@ static int get_cur_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_spe
struct slot *slot = hotplug_slot->private;
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);
@ -414,7 +416,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
ctrl = pcie_init(dev);
if (!ctrl) {
dev_err(&dev->device, "controller initialization failed\n");
dev_err(&dev->device, "Controller initialization failed\n");
goto err_out_none;
}
set_service_data(dev, ctrl);
@ -423,10 +425,10 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
rc = init_slots(ctrl);
if (rc) {
if (rc == -EBUSY)
ctrl_warn(ctrl, "slot already registered by another "
ctrl_warn(ctrl, "Slot already registered by another "
"hotplug driver\n");
else
ctrl_err(ctrl, "slot initialization failed\n");
ctrl_err(ctrl, "Slot initialization failed\n");
goto err_out_release_ctlr;
}
@ -523,7 +525,7 @@ static int __init pcied_init(void)
dbg("pcie_port_service_register = %d\n", retval);
info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
if (retval)
dbg("%s: Failure to register service\n", __func__);
dbg("Failure to register service\n");
return retval;
}

64
drivers/pci/hotplug/pciehp_ctrl.c
View File

@ -61,7 +61,7 @@ u8 pciehp_handle_attention_button(struct slot *p_slot)
struct controller *ctrl = p_slot->ctrl;
/* Attention Button Change */
ctrl_dbg(ctrl, "Attention button interrupt received.\n");
ctrl_dbg(ctrl, "Attention button interrupt received\n");
/*
* Button pressed - See if need to TAKE ACTION!!!
@ -81,7 +81,7 @@ u8 pciehp_handle_switch_change(struct slot *p_slot)
struct controller *ctrl = p_slot->ctrl;
/* Switch Change */
ctrl_dbg(ctrl, "Switch interrupt received.\n");
ctrl_dbg(ctrl, "Switch interrupt received\n");
p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
if (getstatus) {
@ -110,7 +110,7 @@ u8 pciehp_handle_presence_change(struct slot *p_slot)
struct controller *ctrl = p_slot->ctrl;
/* Presence Change */
ctrl_dbg(ctrl, "Presence/Notify input change.\n");
ctrl_dbg(ctrl, "Presence/Notify input change\n");
/* Switch is open, assume a presence change
* Save the presence state
@ -142,7 +142,7 @@ u8 pciehp_handle_power_fault(struct slot *p_slot)
struct controller *ctrl = p_slot->ctrl;
/* power fault */
ctrl_dbg(ctrl, "Power fault interrupt received.\n");
ctrl_dbg(ctrl, "Power fault interrupt received\n");
if ( !(p_slot->hpc_ops->query_power_fault(p_slot))) {
/*
@ -157,7 +157,7 @@ u8 pciehp_handle_power_fault(struct slot *p_slot)
*/
ctrl_info(ctrl, "Power fault on Slot(%s)\n", slot_name(p_slot));
event_type = INT_POWER_FAULT;
ctrl_info(ctrl, "power fault bit %x set\n", 0);
ctrl_info(ctrl, "Power fault bit %x set\n", 0);
}
queue_interrupt_event(p_slot, event_type);
@ -175,8 +175,7 @@ static void set_slot_off(struct controller *ctrl, struct slot * pslot)
if (POWER_CTRL(ctrl)) {
if (pslot->hpc_ops->power_off_slot(pslot)) {
ctrl_err(ctrl,
"%s: Issue of Slot Power Off command failed\n",
__func__);
"Issue of Slot Power Off command failed\n");
return;
}
}
@ -193,8 +192,8 @@ static void set_slot_off(struct controller *ctrl, struct slot * pslot)
if (ATTN_LED(ctrl)) {
if (pslot->hpc_ops->set_attention_status(pslot, 1)) {
ctrl_err(ctrl, "%s: Issue of Set Attention "
"Led command failed\n", __func__);
ctrl_err(ctrl,
"Issue of Set Attention Led command failed\n");
return;
}
}
@ -211,8 +210,9 @@ static int board_added(struct slot *p_slot)
{
int retval = 0;
struct controller *ctrl = p_slot->ctrl;
struct pci_bus *parent = ctrl->pci_dev->subordinate;
ctrl_dbg(ctrl, "%s: slot device, slot offset, hp slot = %d, %d ,%d\n",
ctrl_dbg(ctrl, "%s: slot device, slot offset, hp slot = %d, %d, %d\n",
__func__, p_slot->device, ctrl->slot_device_offset,
p_slot->hp_slot);
@ -229,22 +229,22 @@ static int board_added(struct slot *p_slot)
/* Check link training status */
retval = p_slot->hpc_ops->check_lnk_status(ctrl);
if (retval) {
ctrl_err(ctrl, "%s: Failed to check link status\n", __func__);
ctrl_err(ctrl, "Failed to check link status\n");
set_slot_off(ctrl, p_slot);
return retval;
}
/* Check for a power fault */
if (p_slot->hpc_ops->query_power_fault(p_slot)) {
ctrl_dbg(ctrl, "%s: power fault detected\n", __func__);
ctrl_dbg(ctrl, "Power fault detected\n");
retval = POWER_FAILURE;
goto err_exit;
}
retval = pciehp_configure_device(p_slot);
if (retval) {
ctrl_err(ctrl, "Cannot add device 0x%x:%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;
}
@ -276,14 +276,14 @@ static int remove_board(struct slot *p_slot)
if (retval)
return retval;
ctrl_dbg(ctrl, "In %s, hp_slot = %d\n", __func__, p_slot->hp_slot);
ctrl_dbg(ctrl, "%s: hp_slot = %d\n", __func__, p_slot->hp_slot);
if (POWER_CTRL(ctrl)) {
/* power off slot */
retval = p_slot->hpc_ops->power_off_slot(p_slot);
if (retval) {
ctrl_err(ctrl, "%s: Issue of Slot Disable command "
"failed\n", __func__);
ctrl_err(ctrl,
"Issue of Slot Disable command failed\n");
return retval;
}
}
@ -324,8 +324,10 @@ static void pciehp_power_thread(struct work_struct *work)
switch (p_slot->state) {
case POWEROFF_STATE:
mutex_unlock(&p_slot->lock);
ctrl_dbg(p_slot->ctrl, "%s: disabling bus:device(%x:%x)\n",
__func__, p_slot->bus, p_slot->device);
ctrl_dbg(p_slot->ctrl,
"Disabling domain:bus:device=%04x:%02x:%02x\n",
pci_domain_nr(p_slot->ctrl->pci_dev->subordinate),
p_slot->bus, p_slot->device);
pciehp_disable_slot(p_slot);
mutex_lock(&p_slot->lock);
p_slot->state = STATIC_STATE;
@ -433,7 +435,6 @@ static void handle_button_press_event(struct slot *p_slot)
* expires to cancel hot-add or hot-remove
*/
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) {
if (PWR_LED(ctrl))
@ -537,16 +538,15 @@ int pciehp_enable_slot(struct slot *p_slot)
rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);
if (rc || !getstatus) {
ctrl_info(ctrl, "%s: no adapter on slot(%s)\n",
__func__, slot_name(p_slot));
ctrl_info(ctrl, "No adapter on slot(%s)\n", slot_name(p_slot));
mutex_unlock(&p_slot->ctrl->crit_sect);
return -ENODEV;
}
if (MRL_SENS(p_slot->ctrl)) {
rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
if (rc || getstatus) {
ctrl_info(ctrl, "%s: latch open on slot(%s)\n",
__func__, slot_name(p_slot));
ctrl_info(ctrl, "Latch open on slot(%s)\n",
slot_name(p_slot));
mutex_unlock(&p_slot->ctrl->crit_sect);
return -ENODEV;
}
@ -555,8 +555,8 @@ int pciehp_enable_slot(struct slot *p_slot)
if (POWER_CTRL(p_slot->ctrl)) {
rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
if (rc || getstatus) {
ctrl_info(ctrl, "%s: already enabled on slot(%s)\n",
__func__, slot_name(p_slot));
ctrl_info(ctrl, "Already enabled on slot(%s)\n",
slot_name(p_slot));
mutex_unlock(&p_slot->ctrl->crit_sect);
return -EINVAL;
}
@ -591,8 +591,8 @@ int pciehp_disable_slot(struct slot *p_slot)
if (!HP_SUPR_RM(p_slot->ctrl)) {
ret = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);
if (ret || !getstatus) {
ctrl_info(ctrl, "%s: no adapter on slot(%s)\n",
__func__, slot_name(p_slot));
ctrl_info(ctrl, "No adapter on slot(%s)\n",
slot_name(p_slot));
mutex_unlock(&p_slot->ctrl->crit_sect);
return -ENODEV;
}
@ -601,8 +601,8 @@ int pciehp_disable_slot(struct slot *p_slot)
if (MRL_SENS(p_slot->ctrl)) {
ret = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
if (ret || getstatus) {
ctrl_info(ctrl, "%s: latch open on slot(%s)\n",
__func__, slot_name(p_slot));
ctrl_info(ctrl, "Latch open on slot(%s)\n",
slot_name(p_slot));
mutex_unlock(&p_slot->ctrl->crit_sect);
return -ENODEV;
}
@ -611,8 +611,8 @@ int pciehp_disable_slot(struct slot *p_slot)
if (POWER_CTRL(p_slot->ctrl)) {
ret = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
if (ret || !getstatus) {
ctrl_info(ctrl, "%s: already disabled slot(%s)\n",
__func__, slot_name(p_slot));
ctrl_info(ctrl, "Already disabled on slot(%s)\n",
slot_name(p_slot));
mutex_unlock(&p_slot->ctrl->crit_sect);
return -EINVAL;
}

43
drivers/pci/hotplug/pciehp_hpc.c
View File

@ -316,22 +316,19 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask)
* proceed forward to issue the next command according
* to spec. Just print out the error message.
*/
ctrl_dbg(ctrl,
"%s: CMD_COMPLETED not clear after 1 sec.\n",
__func__);
ctrl_dbg(ctrl, "CMD_COMPLETED not clear after 1 sec\n");
} else if (!NO_CMD_CMPL(ctrl)) {
/*
* This controller semms to notify of command completed
* event even though it supports none of power
* controller, attention led, power led and EMI.
*/
ctrl_dbg(ctrl, "%s: Unexpected CMD_COMPLETED. Need to "
"wait for command completed event.\n",
__func__);
ctrl_dbg(ctrl, "Unexpected CMD_COMPLETED. Need to "
"wait for command completed event.\n");
ctrl->no_cmd_complete = 0;
} else {
ctrl_dbg(ctrl, "%s: Unexpected CMD_COMPLETED. Maybe "
"the controller is broken.\n", __func__);
ctrl_dbg(ctrl, "Unexpected CMD_COMPLETED. Maybe "
"the controller is broken.\n");
}
}
@ -347,8 +344,7 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask)
smp_mb();
retval = pciehp_writew(ctrl, SLOTCTRL, slot_ctrl);
if (retval)
ctrl_err(ctrl, "%s: Cannot write to SLOTCTRL register\n",
__func__);
ctrl_err(ctrl, "Cannot write to SLOTCTRL register\n");
/*
* Wait for command completion.
@ -418,15 +414,14 @@ static int hpc_check_lnk_status(struct controller *ctrl)
retval = pciehp_readw(ctrl, LNKSTATUS, &lnk_status);
if (retval) {
ctrl_err(ctrl, "%s: Cannot read LNKSTATUS register\n",
__func__);
ctrl_err(ctrl, "Cannot read LNKSTATUS register\n");
return retval;
}
ctrl_dbg(ctrl, "%s: lnk_status = %x\n", __func__, lnk_status);
if ( (lnk_status & LNK_TRN) || (lnk_status & LNK_TRN_ERR) ||
!(lnk_status & NEG_LINK_WD)) {
ctrl_err(ctrl, "%s : Link Training Error occurs \n", __func__);
ctrl_err(ctrl, "Link Training Error occurs \n");
retval = -1;
return retval;
}
@ -551,7 +546,7 @@ static int hpc_query_power_fault(struct slot *slot)
retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status);
if (retval) {
ctrl_err(ctrl, "%s: Cannot check for power fault\n", __func__);
ctrl_err(ctrl, "Cannot check for power fault\n");
return retval;
}
pwr_fault = (u8)((slot_status & PWR_FAULT_DETECTED) >> 1);
@ -567,7 +562,7 @@ static int hpc_get_emi_status(struct slot *slot, u8 *status)
retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status);
if (retval) {
ctrl_err(ctrl, "%s : Cannot check EMI status\n", __func__);
ctrl_err(ctrl, "Cannot check EMI status\n");
return retval;
}
*status = (slot_status & EMI_STATE) >> EMI_STATUS_BIT;
@ -697,8 +692,7 @@ static int hpc_power_on_slot(struct slot * slot)
retval = pcie_write_cmd(ctrl, slot_cmd, cmd_mask);
if (retval) {
ctrl_err(ctrl, "%s: Write %x command failed!\n",
__func__, slot_cmd);
ctrl_err(ctrl, "Write %x command failed!\n", slot_cmd);
return -1;
}
ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n",
@ -776,7 +770,7 @@ static int hpc_power_off_slot(struct slot * slot)
retval = pcie_write_cmd(ctrl, slot_cmd, cmd_mask);
if (retval) {
ctrl_err(ctrl, "%s: Write command failed!\n", __func__);
ctrl_err(ctrl, "Write command failed!\n");
retval = -1;
goto out;
}
@ -1056,8 +1050,7 @@ int pcie_enable_notification(struct controller *ctrl)
PWR_FAULT_DETECT_ENABLE | HP_INTR_ENABLE | CMD_CMPL_INTR_ENABLE;
if (pcie_write_cmd(ctrl, cmd, mask)) {
ctrl_err(ctrl, "%s: Cannot enable software notification\n",
__func__);
ctrl_err(ctrl, "Cannot enable software notification\n");
return -1;
}
return 0;
@ -1069,8 +1062,7 @@ static void pcie_disable_notification(struct controller *ctrl)
mask = PRSN_DETECT_ENABLE | ATTN_BUTTN_ENABLE | MRL_DETECT_ENABLE |
PWR_FAULT_DETECT_ENABLE | HP_INTR_ENABLE | CMD_CMPL_INTR_ENABLE;
if (pcie_write_cmd(ctrl, 0, mask))
ctrl_warn(ctrl, "%s: Cannot disable software notification\n",
__func__);
ctrl_warn(ctrl, "Cannot disable software notification\n");
}
static int pcie_init_notification(struct controller *ctrl)
@ -1179,7 +1171,7 @@ struct controller *pcie_init(struct pcie_device *dev)
ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL);
if (!ctrl) {
dev_err(&dev->device, "%s : out of memory\n", __func__);
dev_err(&dev->device, "%s: Out of memory\n", __func__);
goto abort;
}
INIT_LIST_HEAD(&ctrl->slot_list);
@ -1188,12 +1180,11 @@ struct controller *pcie_init(struct pcie_device *dev)
ctrl->pci_dev = pdev;
ctrl->cap_base = pci_find_capability(pdev, PCI_CAP_ID_EXP);
if (!ctrl->cap_base) {
ctrl_err(ctrl, "%s: Cannot find PCI Express capability\n",
__func__);
ctrl_err(ctrl, "Cannot find PCI Express capability\n");
goto abort_ctrl;
}
if (pciehp_readl(ctrl, SLOTCAP, &slot_cap)) {
ctrl_err(ctrl, "%s: Cannot read SLOTCAP register\n", __func__);
ctrl_err(ctrl, "Cannot read SLOTCAP register\n");
goto abort_ctrl;
}

19
drivers/pci/hotplug/pciehp_pci.c
View File

@ -39,8 +39,7 @@ static void program_hpp_type0(struct pci_dev *dev, struct hpp_type0 *hpp)
u16 pci_cmd, pci_bctl;
if (hpp->revision > 1) {
printk(KERN_WARNING "%s: Rev.%d type0 record not supported\n",
__func__, hpp->revision);
warn("Rev.%d type0 record not supported\n", hpp->revision);
return;
}
@ -81,8 +80,7 @@ static void program_hpp_type2(struct pci_dev *dev, struct hpp_type2 *hpp)
u32 reg32;
if (hpp->revision > 1) {
printk(KERN_WARNING "%s: Rev.%d type2 record not supported\n",
__func__, hpp->revision);
warn("Rev.%d type2 record not supported\n", hpp->revision);
return;
}
@ -149,8 +147,7 @@ static void program_fw_provided_values(struct pci_dev *dev)
return;
if (pciehp_get_hp_params_from_firmware(dev, &hpp)) {
printk(KERN_WARNING "%s: Could not get hotplug parameters\n",
__func__);
warn("Could not get hotplug parameters\n");
return;
}
@ -202,9 +199,9 @@ int pciehp_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;
}
@ -248,8 +245,8 @@ int pciehp_unconfigure_device(struct slot *p_slot)
u16 command;
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);
ret = p_slot->hpc_ops->get_adapter_status(p_slot, &presence);
if (ret)
presence = 0;

22
drivers/pci/hotplug/shpchp.h
View File

@ -59,6 +59,20 @@ extern struct workqueue_struct *shpchp_wq;
#define warn(format, arg...) \
printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
#define ctrl_dbg(ctrl, format, arg...) \
do { \
if (shpchp_debug) \
dev_printk(, &ctrl->pci_dev->dev, \
format, ## arg); \
} while (0)
#define ctrl_err(ctrl, format, arg...) \
dev_err(&ctrl->pci_dev->dev, format, ## arg)
#define ctrl_info(ctrl, format, arg...) \
dev_info(&ctrl->pci_dev->dev, format, ## arg)
#define ctrl_warn(ctrl, format, arg...) \
dev_warn(&ctrl->pci_dev->dev, format, ## arg)
#define SLOT_NAME_SIZE 10
struct slot {
u8 bus;
@ -239,7 +253,7 @@ static inline struct slot *shpchp_find_slot(struct controller *ctrl, u8 device)
return slot;
}
err("%s: slot (device=0x%x) not found\n", __func__, device);
ctrl_err(ctrl, "Slot (device=0x%02x) not found\n", device);
return NULL;
}
@ -273,7 +287,9 @@ static inline void amd_pogo_errata_restore_misc_reg(struct slot *p_slot)
pci_read_config_dword(p_slot->ctrl->pci_dev, PCIX_MISC_BRIDGE_ERRORS_OFFSET, &pcix_bridge_errors_reg);
perr_set = pcix_bridge_errors_reg & PERR_OBSERVED_MASK;
if (perr_set) {
dbg ("%s W1C: Bridge_Errors[ PERR_OBSERVED = %08X]\n",__func__ , perr_set);
ctrl_dbg(p_slot->ctrl,
"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);
}
@ -282,7 +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) {
dbg ("%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);
}

48
drivers/pci/hotplug/shpchp_core.c
View File

@ -89,7 +89,8 @@ static void release_slot(struct hotplug_slot *hotplug_slot)
{
struct slot *slot = hotplug_slot->private;
dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));
kfree(slot->hotplug_slot->info);
kfree(slot->hotplug_slot);
@ -135,13 +136,16 @@ static int init_slots(struct controller *ctrl)
snprintf(name, SLOT_NAME_SIZE, "%d", slot->number);
hotplug_slot->ops = &shpchp_hotplug_slot_ops;
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);
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) {
err("pci_hp_register failed with error %d\n", retval);
ctrl_err(ctrl, "pci_hp_register failed with error %d\n",
retval);
goto error_info;
}
@ -187,7 +191,8 @@ static int set_attention_status (struct hotplug_slot *hotplug_slot, u8 status)
{
struct slot *slot = get_slot(hotplug_slot);
dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));
hotplug_slot->info->attention_status = status;
slot->hpc_ops->set_attention_status(slot, status);
@ -199,7 +204,8 @@ static int enable_slot (struct hotplug_slot *hotplug_slot)
{
struct slot *slot = get_slot(hotplug_slot);
dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));
return shpchp_sysfs_enable_slot(slot);
}
@ -208,7 +214,8 @@ static int disable_slot (struct hotplug_slot *hotplug_slot)
{
struct slot *slot = get_slot(hotplug_slot);
dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));
return shpchp_sysfs_disable_slot(slot);
}
@ -218,7 +225,8 @@ static int get_power_status (struct hotplug_slot *hotplug_slot, u8 *value)
struct slot *slot = get_slot(hotplug_slot);
int retval;
dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));
retval = slot->hpc_ops->get_power_status(slot, value);
if (retval < 0)
@ -232,7 +240,8 @@ static int get_attention_status (struct hotplug_slot *hotplug_slot, u8 *value)
struct slot *slot = get_slot(hotplug_slot);
int retval;
dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));
retval = slot->hpc_ops->get_attention_status(slot, value);
if (retval < 0)
@ -246,7 +255,8 @@ static int get_latch_status (struct hotplug_slot *hotplug_slot, u8 *value)
struct slot *slot = get_slot(hotplug_slot);
int retval;
dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));
retval = slot->hpc_ops->get_latch_status(slot, value);
if (retval < 0)
@ -260,7 +270,8 @@ static int get_adapter_status (struct hotplug_slot *hotplug_slot, u8 *value)
struct slot *slot = get_slot(hotplug_slot);
int retval;
dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));
retval = slot->hpc_ops->get_adapter_status(slot, value);
if (retval < 0)
@ -275,7 +286,8 @@ static int get_max_bus_speed(struct hotplug_slot *hotplug_slot,
struct slot *slot = get_slot(hotplug_slot);
int retval;
dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));
retval = slot->hpc_ops->get_max_bus_speed(slot, value);
if (retval < 0)
@ -289,7 +301,8 @@ static int get_cur_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_sp
struct slot *slot = get_slot(hotplug_slot);
int retval;
dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));
retval = slot->hpc_ops->get_cur_bus_speed(slot, value);
if (retval < 0)
@ -320,15 +333,14 @@ static int shpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL);
if (!ctrl) {
err("%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) {
dbg("%s: controller initialization failed\n",
SHPC_MODULE_NAME);
ctrl_dbg(ctrl, "Controller initialization failed\n");
goto err_out_free_ctrl;
}
@ -337,7 +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) {
err("%s: slot initialization failed\n", SHPC_MODULE_NAME);
ctrl_err(ctrl, "Slot initialization failed\n");
goto err_out_release_ctlr;
}

158
drivers/pci/hotplug/shpchp_ctrl.c
View File

@ -62,7 +62,7 @@ u8 shpchp_handle_attention_button(u8 hp_slot, struct controller *ctrl)
u32 event_type;
/* Attention Button Change */
dbg("shpchp: 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));
@ -70,7 +70,7 @@ u8 shpchp_handle_attention_button(u8 hp_slot, struct controller *ctrl)
/*
* Button pressed - See if need to TAKE ACTION!!!
*/
info("Button pressed on Slot(%s)\n", slot_name(p_slot));
ctrl_info(ctrl, "Button pressed on Slot(%s)\n", slot_name(p_slot));
event_type = INT_BUTTON_PRESS;
queue_interrupt_event(p_slot, event_type);
@ -86,29 +86,29 @@ u8 shpchp_handle_switch_change(u8 hp_slot, struct controller *ctrl)
u32 event_type;
/* Switch Change */
dbg("shpchp: 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);
dbg("%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) {
/*
* Switch opened
*/
info("Latch open on Slot(%s)\n", slot_name(p_slot));
ctrl_info(ctrl, "Latch open on Slot(%s)\n", slot_name(p_slot));
event_type = INT_SWITCH_OPEN;
if (p_slot->pwr_save && p_slot->presence_save) {
event_type = INT_POWER_FAULT;
err("Surprise Removal of card\n");
ctrl_err(ctrl, "Surprise Removal of card\n");
}
} else {
/*
* Switch closed
*/
info("Latch close on Slot(%s)\n", slot_name(p_slot));
ctrl_info(ctrl, "Latch close on Slot(%s)\n", slot_name(p_slot));
event_type = INT_SWITCH_CLOSE;
}
@ -123,7 +123,7 @@ u8 shpchp_handle_presence_change(u8 hp_slot, struct controller *ctrl)
u32 event_type;
/* Presence Change */
dbg("shpchp: 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);
@ -135,13 +135,15 @@ u8 shpchp_handle_presence_change(u8 hp_slot, struct controller *ctrl)
/*
* Card Present
*/
info("Card present on Slot(%s)\n", slot_name(p_slot));
ctrl_info(ctrl, "Card present on Slot(%s)\n",
slot_name(p_slot));
event_type = INT_PRESENCE_ON;
} else {
/*
* Not Present
*/
info("Card not present on Slot(%s)\n", slot_name(p_slot));
ctrl_info(ctrl, "Card not present on Slot(%s)\n",
slot_name(p_slot));
event_type = INT_PRESENCE_OFF;
}
@ -156,7 +158,7 @@ u8 shpchp_handle_power_fault(u8 hp_slot, struct controller *ctrl)
u32 event_type;
/* Power fault */
dbg("shpchp: 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);
@ -164,18 +166,19 @@ u8 shpchp_handle_power_fault(u8 hp_slot, struct controller *ctrl)
/*
* Power fault Cleared
*/
info("Power fault cleared on Slot(%s)\n", slot_name(p_slot));
ctrl_info(ctrl, "Power fault cleared on Slot(%s)\n",
slot_name(p_slot));
p_slot->status = 0x00;
event_type = INT_POWER_FAULT_CLEAR;
} else {
/*
* Power fault
*/
info("Power fault on Slot(%s)\n", slot_name(p_slot));
ctrl_info(ctrl, "Power fault on Slot(%s)\n", slot_name(p_slot));
event_type = INT_POWER_FAULT;
/* set power fault status for this board */
p_slot->status = 0xFF;
info("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);
@ -191,10 +194,10 @@ static int change_bus_speed(struct controller *ctrl, struct slot *p_slot,
{
int rc = 0;
dbg("%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))) {
err("%s: Issue of set bus speed mode command failed\n",
__func__);
ctrl_err(ctrl, "%s: Issue of set bus speed mode command "
"failed\n", __func__);
return WRONG_BUS_FREQUENCY;
}
return rc;
@ -212,8 +215,8 @@ static int fix_bus_speed(struct controller *ctrl, struct slot *pslot,
*/
if (flag) {
if (asp < bsp) {
err("%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;
@ -243,17 +246,18 @@ 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;
dbg("%s: p_slot->device, slot_offset, hp_slot = %d, %d ,%d\n",
__func__, p_slot->device,
ctrl->slot_device_offset, hp_slot);
ctrl_dbg(ctrl,
"%s: p_slot->device, slot_offset, hp_slot = %d, %d ,%d\n",
__func__, p_slot->device, ctrl->slot_device_offset, hp_slot);
/* Power on slot without connecting to bus */
rc = p_slot->hpc_ops->power_on_slot(p_slot);
if (rc) {
err("%s: Failed to power on slot\n", __func__);
ctrl_err(ctrl, "Failed to power on slot\n");
return -1;
}
@ -262,33 +266,34 @@ static int board_added(struct slot *p_slot)
return WRONG_BUS_FREQUENCY;
if ((rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, PCI_SPEED_33MHz))) {
err("%s: Issue of set bus speed mode command failed\n", __func__);
ctrl_err(ctrl, "%s: Issue of set bus speed mode command"
" failed\n", __func__);
return WRONG_BUS_FREQUENCY;
}
/* turn on board, blink green LED, turn off Amber LED */
if ((rc = p_slot->hpc_ops->slot_enable(p_slot))) {
err("%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) {
err("%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) {
err("%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) {
err("%s: Can't get max bus operation speed\n", __func__);
ctrl_err(ctrl, "Can't get max bus operation speed\n");
msp = bsp;
}
@ -296,9 +301,9 @@ static int board_added(struct slot *p_slot)
if (!list_empty(&ctrl->pci_dev->subordinate->devices))
slots_not_empty = 1;
dbg("%s: slots_not_empty %d, adapter_speed %d, bus_speed %d, "
"max_bus_speed %d\n", __func__, slots_not_empty, asp,
bsp, msp);
ctrl_dbg(ctrl, "%s: slots_not_empty %d, adapter_speed %d, bus_speed %d,"
" max_bus_speed %d\n", __func__, slots_not_empty, asp,
bsp, msp);
rc = fix_bus_speed(ctrl, p_slot, slots_not_empty, asp, bsp, msp);
if (rc)
@ -306,26 +311,26 @@ 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))) {
err("%s: Issue of Slot Enable command failed\n", __func__);
ctrl_err(ctrl, "Issue of Slot Enable command failed\n");
return rc;
}
/* Wait for ~1 second */
msleep(1000);
dbg("%s: slot status = %x\n", __func__, p_slot->status);
ctrl_dbg(ctrl, "%s: slot status = %x\n", __func__, p_slot->status);
/* Check for a power fault */
if (p_slot->status == 0xFF) {
/* power fault occurred, but it was benign */
dbg("%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)) {
err("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;
}
@ -341,7 +346,8 @@ err_exit:
/* turn off slot, turn on Amber LED, turn off Green LED */
rc = p_slot->hpc_ops->slot_disable(p_slot);
if (rc) {
err("%s: Issue of Slot Disable command failed\n", __func__);
ctrl_err(ctrl, "%s: Issue of Slot Disable command failed\n",
__func__);
return rc;
}
@ -365,7 +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);
dbg("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)
@ -374,13 +380,14 @@ static int remove_board(struct slot *p_slot)
/* turn off slot, turn on Amber LED, turn off Green LED */
rc = p_slot->hpc_ops->slot_disable(p_slot);
if (rc) {
err("%s: Issue of Slot Disable command failed\n", __func__);
ctrl_err(ctrl, "%s: Issue of Slot Disable command failed\n",
__func__);
return rc;
}
rc = p_slot->hpc_ops->set_attention_status(p_slot, 0);
if (rc) {
err("%s: Issue of Set Attention command failed\n", __func__);
ctrl_err(ctrl, "Issue of Set Attention command failed\n");
return rc;
}
@ -439,7 +446,8 @@ void shpchp_queue_pushbutton_work(struct work_struct *work)
info = kmalloc(sizeof(*info), GFP_KERNEL);
if (!info) {
err("%s: Cannot allocate memory\n", __func__);
ctrl_err(p_slot->ctrl, "%s: Cannot allocate memory\n",
__func__);
return;
}
info->p_slot = p_slot;
@ -486,18 +494,19 @@ static int update_slot_info (struct slot *slot)
static void handle_button_press_event(struct slot *p_slot)
{
u8 getstatus;
struct controller *ctrl = p_slot->ctrl;
switch (p_slot->state) {
case STATIC_STATE:
p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
if (getstatus) {
p_slot->state = BLINKINGOFF_STATE;
info("PCI slot #%s - powering off due to button "
"press.\n", slot_name(p_slot));
ctrl_info(ctrl, "PCI slot #%s - powering off due to "
"button press.\n", slot_name(p_slot));
} else {
p_slot->state = BLINKINGON_STATE;
info("PCI slot #%s - powering on due to button "
"press.\n", slot_name(p_slot));
ctrl_info(ctrl, "PCI slot #%s - powering on due to "
"button press.\n", slot_name(p_slot));
}
/* blink green LED and turn off amber */
p_slot->hpc_ops->green_led_blink(p_slot);
@ -512,16 +521,16 @@ static void handle_button_press_event(struct slot *p_slot)
* press the attention again before the 5 sec. limit
* expires to cancel hot-add or hot-remove
*/
info("Button cancel on Slot(%s)\n", slot_name(p_slot));
dbg("%s: button cancel\n", __func__);
ctrl_info(ctrl, "Button cancel on Slot(%s)\n",
slot_name(p_slot));
cancel_delayed_work(&p_slot->work);
if (p_slot->state == BLINKINGOFF_STATE)
p_slot->hpc_ops->green_led_on(p_slot);
else
p_slot->hpc_ops->green_led_off(p_slot);
p_slot->hpc_ops->set_attention_status(p_slot, 0);
info("PCI slot #%s - action canceled due to button press\n",
slot_name(p_slot));
ctrl_info(ctrl, "PCI slot #%s - action canceled due to "
"button press\n", slot_name(p_slot));
p_slot->state = STATIC_STATE;
break;
case POWEROFF_STATE:
@ -531,11 +540,12 @@ static void handle_button_press_event(struct slot *p_slot)
* this means that the previous attention button action
* to hot-add or hot-remove is undergoing
*/
info("Button ignore on Slot(%s)\n", slot_name(p_slot));
ctrl_info(ctrl, "Button ignore on Slot(%s)\n",
slot_name(p_slot));
update_slot_info(p_slot);
break;
default:
warn("Not a valid state\n");
ctrl_warn(ctrl, "Not a valid state\n");
break;
}
}
@ -551,7 +561,7 @@ static void interrupt_event_handler(struct work_struct *work)
handle_button_press_event(p_slot);
break;
case INT_POWER_FAULT:
dbg("%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;
@ -569,22 +579,24 @@ static int shpchp_enable_slot (struct slot *p_slot)
{
u8 getstatus = 0;
int rc, retval = -ENODEV;
struct controller *ctrl = p_slot->ctrl;
/* Check to see if (latch closed, card present, power off) */
mutex_lock(&p_slot->ctrl->crit_sect);
rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);
if (rc || !getstatus) {
info("No adapter on slot(%s)\n", slot_name(p_slot));
ctrl_info(ctrl, "No adapter on slot(%s)\n", slot_name(p_slot));
goto out;
}
rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
if (rc || getstatus) {
info("Latch open on slot(%s)\n", slot_name(p_slot));
ctrl_info(ctrl, "Latch open on slot(%s)\n", slot_name(p_slot));
goto out;
}
rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
if (rc || getstatus) {
info("Already enabled on slot(%s)\n", slot_name(p_slot));
ctrl_info(ctrl, "Already enabled on slot(%s)\n",
slot_name(p_slot));
goto out;
}
@ -593,7 +605,7 @@ static int shpchp_enable_slot (struct slot *p_slot)
/* We have to save the presence info for these slots */
p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));
p_slot->hpc_ops->get_power_status(p_slot, &(p_slot->pwr_save));
dbg("%s: p_slot->pwr_save %x\n", __func__, p_slot->pwr_save);
ctrl_dbg(ctrl, "%s: p_slot->pwr_save %x\n", __func__, p_slot->pwr_save);
p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
if(((p_slot->ctrl->pci_dev->vendor == PCI_VENDOR_ID_AMD) ||
@ -624,6 +636,7 @@ static int shpchp_disable_slot (struct slot *p_slot)
{
u8 getstatus = 0;
int rc, retval = -ENODEV;
struct controller *ctrl = p_slot->ctrl;
if (!p_slot->ctrl)
return -ENODEV;
@ -633,17 +646,18 @@ static int shpchp_disable_slot (struct slot *p_slot)
rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);
if (rc || !getstatus) {
info("No adapter on slot(%s)\n", slot_name(p_slot));
ctrl_info(ctrl, "No adapter on slot(%s)\n", slot_name(p_slot));
goto out;
}
rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
if (rc || getstatus) {
info("Latch open on slot(%s)\n", slot_name(p_slot));
ctrl_info(ctrl, "Latch open on slot(%s)\n", slot_name(p_slot));
goto out;
}
rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
if (rc || !getstatus) {
info("Already disabled slot(%s)\n", slot_name(p_slot));
ctrl_info(ctrl, "Already disabled on slot(%s)\n",
slot_name(p_slot));
goto out;
}
@ -657,6 +671,7 @@ static int shpchp_disable_slot (struct slot *p_slot)
int shpchp_sysfs_enable_slot(struct slot *p_slot)
{
int retval = -ENODEV;
struct controller *ctrl = p_slot->ctrl;
mutex_lock(&p_slot->lock);
switch (p_slot->state) {
@ -670,15 +685,17 @@ int shpchp_sysfs_enable_slot(struct slot *p_slot)
p_slot->state = STATIC_STATE;
break;
case POWERON_STATE:
info("Slot %s is already in powering on state\n",
slot_name(p_slot));
ctrl_info(ctrl, "Slot %s is already in powering on state\n",
slot_name(p_slot));
break;
case BLINKINGOFF_STATE:
case POWEROFF_STATE:
info("Already enabled on slot %s\n", slot_name(p_slot));
ctrl_info(ctrl, "Already enabled on slot %s\n",
slot_name(p_slot));
break;
default:
err("Not a valid state on slot %s\n", slot_name(p_slot));
ctrl_err(ctrl, "Not a valid state on slot %s\n",
slot_name(p_slot));
break;
}
mutex_unlock(&p_slot->lock);
@ -689,6 +706,7 @@ int shpchp_sysfs_enable_slot(struct slot *p_slot)
int shpchp_sysfs_disable_slot(struct slot *p_slot)
{
int retval = -ENODEV;
struct controller *ctrl = p_slot->ctrl;
mutex_lock(&p_slot->lock);
switch (p_slot->state) {
@ -702,15 +720,17 @@ int shpchp_sysfs_disable_slot(struct slot *p_slot)
p_slot->state = STATIC_STATE;
break;
case POWEROFF_STATE:
info("Slot %s is already in powering off state\n",
slot_name(p_slot));
ctrl_info(ctrl, "Slot %s is already in powering off state\n",
slot_name(p_slot));
break;
case BLINKINGON_STATE:
case POWERON_STATE:
info("Already disabled on slot %s\n", slot_name(p_slot));
ctrl_info(ctrl, "Already disabled on slot %s\n",
slot_name(p_slot));
break;
default:
err("Not a valid state on slot %s\n", slot_name(p_slot));
ctrl_err(ctrl, "Not a valid state on slot %s\n",
slot_name(p_slot));
break;
}
mutex_unlock(&p_slot->lock);

113
drivers/pci/hotplug/shpchp_hpc.c
View File

@ -300,10 +300,10 @@ static inline int shpc_wait_cmd(struct controller *ctrl)
!is_ctrl_busy(ctrl), timeout);
if (!rc && is_ctrl_busy(ctrl)) {
retval = -EIO;
err("Command not completed in 1000 msec\n");
ctrl_err(ctrl, "Command not completed in 1000 msec\n");
} else if (rc < 0) {
retval = -EINTR;
info("Command was interrupted by a signal\n");
ctrl_info(ctrl, "Command was interrupted by a signal\n");
}
return retval;
@ -320,15 +320,14 @@ 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 */
err("%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;
}
++t_slot;
temp_word = (t_slot << 8) | (cmd & 0xFF);
dbg("%s: t_slot %x cmd %x\n", __func__, t_slot, cmd);
ctrl_dbg(ctrl, "%s: t_slot %x cmd %x\n", __func__, t_slot, cmd);
/* To make sure the Controller Busy bit is 0 before we send out the
* command.
@ -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) {
err("%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;
err("%s: Switch opened!\n", __func__);
ctrl_err(ctrl, "Switch opened!\n");
break;
case 2:
retval = INVALID_CMD;
err("%s: Invalid HPC command!\n", __func__);
ctrl_err(ctrl, "Invalid HPC command!\n");
break;
case 4:
retval = INVALID_SPEED_MODE;
err("%s: Invalid bus speed/mode!\n", __func__);
ctrl_err(ctrl, "Invalid bus speed/mode!\n");
break;
default:
retval = cmd_status;
@ -483,8 +483,8 @@ static int hpc_get_adapter_speed(struct slot *slot, enum pci_bus_speed *value)
return -ENODEV;
}
dbg("%s: slot_reg = %x, pcix_cap = %x, m66_cap = %x\n",
__func__, slot_reg, pcix_cap, m66_cap);
ctrl_dbg(ctrl, "%s: slot_reg = %x, pcix_cap = %x, m66_cap = %x\n",
__func__, slot_reg, pcix_cap, m66_cap);
switch (pcix_cap) {
case 0x0:
@ -509,7 +509,7 @@ static int hpc_get_adapter_speed(struct slot *slot, enum pci_bus_speed *value)
break;
}
dbg("Adapter speed = %d\n", *value);
ctrl_dbg(ctrl, "Adapter speed = %d\n", *value);
return retval;
}
@ -526,7 +526,7 @@ static int hpc_get_mode1_ECC_cap(struct slot *slot, u8 *mode)
retval = -1;
}
dbg("Mode 1 ECC cap = %d\n", *mode);
ctrl_dbg(ctrl, "Mode 1 ECC cap = %d\n", *mode);
return retval;
}
@ -629,7 +629,7 @@ static int hpc_power_on_slot(struct slot * slot)
retval = shpc_write_cmd(slot, slot->hp_slot, SET_SLOT_PWR);
if (retval)
err("%s: Write command failed!\n", __func__);
ctrl_err(slot->ctrl, "%s: Write command failed!\n", __func__);
return retval;
}
@ -642,7 +642,7 @@ static int hpc_slot_enable(struct slot * slot)
retval = shpc_write_cmd(slot, slot->hp_slot,
SET_SLOT_ENABLE | SET_PWR_BLINK | SET_ATTN_OFF);
if (retval)
err("%s: Write command failed!\n", __func__);
ctrl_err(slot->ctrl, "%s: Write command failed!\n", __func__);
return retval;
}
@ -655,7 +655,7 @@ static int hpc_slot_disable(struct slot * slot)
retval = shpc_write_cmd(slot, slot->hp_slot,
SET_SLOT_DISABLE | SET_PWR_OFF | SET_ATTN_ON);
if (retval)
err("%s: Write command failed!\n", __func__);
ctrl_err(slot->ctrl, "%s: Write command failed!\n", __func__);
return retval;
}
@ -719,7 +719,7 @@ static int hpc_set_bus_speed_mode(struct slot * slot, enum pci_bus_speed value)
retval = shpc_write_cmd(slot, 0, cmd);
if (retval)
err("%s: Write command failed!\n", __func__);
ctrl_err(ctrl, "%s: Write command failed!\n", __func__);
return retval;
}
@ -735,7 +735,7 @@ static irqreturn_t shpc_isr(int irq, void *dev_id)
if (!intr_loc)
return IRQ_NONE;
dbg("%s: intr_loc = %x\n",__func__, intr_loc);
ctrl_dbg(ctrl, "%s: intr_loc = %x\n", __func__, intr_loc);
if(!shpchp_poll_mode) {
/*
@ -748,7 +748,7 @@ static irqreturn_t shpc_isr(int irq, void *dev_id)
shpc_writel(ctrl, SERR_INTR_ENABLE, serr_int);
intr_loc2 = shpc_readl(ctrl, INTR_LOC);
dbg("%s: intr_loc2 = %x\n",__func__, intr_loc2);
ctrl_dbg(ctrl, "%s: intr_loc2 = %x\n", __func__, intr_loc2);
}
if (intr_loc & CMD_INTR_PENDING) {
@ -773,8 +773,8 @@ static irqreturn_t shpc_isr(int irq, void *dev_id)
continue;
slot_reg = shpc_readl(ctrl, SLOT_REG(hp_slot));
dbg("%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);
@ -843,7 +843,7 @@ static int hpc_get_max_bus_speed (struct slot *slot, enum pci_bus_speed *value)
}
*value = bus_speed;
dbg("Max bus speed = %d\n", bus_speed);
ctrl_dbg(ctrl, "Max bus speed = %d\n", bus_speed);
return retval;
}
@ -911,7 +911,7 @@ static int hpc_get_cur_bus_speed (struct slot *slot, enum pci_bus_speed *value)
break;
}
dbg("Current bus speed = %d\n", bus_speed);
ctrl_dbg(ctrl, "Current bus speed = %d\n", bus_speed);
return retval;
}
@ -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)) {
@ -958,34 +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) {
err("%s : cap_offset == 0\n", __func__);
ctrl_err(ctrl, "Cannot find PCI capability\n");
goto abort;
}
dbg("%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) {
err("%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) {
err("%s: cannot read slot config\n", __func__);
ctrl_err(ctrl, "Cannot read slot config\n");
goto abort;
}
num_slots = tempdword & SLOT_NUM;
dbg("%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) {
err("%s: cannot read creg (index = %d)\n",
__func__, i);
ctrl_err(ctrl,
"Cannot read creg (index = %d)\n", i);
goto abort;
}
dbg("%s: offset %d: value %x\n", __func__,i,
tempdword);
ctrl_dbg(ctrl, " offset %d: value %x\n", i, tempdword);
}
ctrl->mmio_base =
@ -993,30 +993,31 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev)
ctrl->mmio_size = 0x24 + 0x4 * num_slots;
}
info("HPC vendor_id %x device_id %x ss_vid %x ss_did %x\n", pdev->vendor, pdev->device, pdev->subsystem_vendor,
pdev->subsystem_device);
ctrl_info(ctrl, "HPC vendor_id %x device_id %x ss_vid %x ss_did %x\n",
pdev->vendor, pdev->device, pdev->subsystem_vendor,
pdev->subsystem_device);
rc = pci_enable_device(pdev);
if (rc) {
err("%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)) {
err("%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) {
err("%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;
}
dbg("%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);
@ -1035,21 +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);
dbg("%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);
dbg("%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));
dbg("%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 |
@ -1066,24 +1067,24 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev)
/* Installs the interrupt handler */
rc = pci_enable_msi(pdev);
if (rc) {
info("Can't get msi for the hotplug controller\n");
info("Use INTx for the hotplug controller\n");
ctrl_info(ctrl,
"Can't get msi for the hotplug controller\n");
ctrl_info(ctrl,
"Use INTx for the hotplug controller\n");
}
rc = request_irq(ctrl->pci_dev->irq, shpc_isr, IRQF_SHARED,
MY_NAME, (void *)ctrl);
dbg("%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) {
err("Can't get irq %d for the hotplug controller\n",
ctrl->pci_dev->irq);
ctrl_err(ctrl, "Can't get irq %d for the hotplug "
"controller\n", ctrl->pci_dev->irq);
goto abort_iounmap;
}
}
dbg("%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,
@ -1102,8 +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));
dbg("%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);
@ -1116,7 +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);
dbg("%s: SERR_INTR_ENABLE = %x\n", __func__, tempdword);
ctrl_dbg(ctrl, "SERR_INTR_ENABLE = %x\n", tempdword);
}
return 0;

36
drivers/pci/hotplug/shpchp_pci.c
View File

@ -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;
@ -101,18 +99,20 @@ int __ref shpchp_configure_device(struct slot *p_slot)
struct pci_dev *dev;
struct pci_bus *parent = p_slot->ctrl->pci_dev->subordinate;
int num, fn;
struct controller *ctrl = p_slot->ctrl;
dev = pci_get_slot(parent, PCI_DEVFN(p_slot->device, 0));
if (dev) {
err("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;
}
num = pci_scan_slot(parent, PCI_DEVFN(p_slot->device, 0));
if (num == 0) {
err("No new device found\n");
ctrl_err(ctrl, "No new device found\n");
return -ENODEV;
}
@ -121,8 +121,8 @@ int __ref shpchp_configure_device(struct slot *p_slot)
if (!dev)
continue;
if ((dev->class >> 16) == PCI_BASE_CLASS_DISPLAY) {
err("Cannot hot-add display device %s\n",
pci_name(dev));
ctrl_err(ctrl, "Cannot hot-add display device %s\n",
pci_name(dev));
pci_dev_put(dev);
continue;
}
@ -138,14 +138,15 @@ int __ref shpchp_configure_device(struct slot *p_slot)
break;
}
if (busnr >= end) {
err("No free bus for hot-added bridge\n");
ctrl_err(ctrl,
"No free bus for hot-added bridge\n");
pci_dev_put(dev);
continue;
}
child = pci_add_new_bus(parent, dev, busnr);
if (!child) {
err("Cannot add new bus for %s\n",
pci_name(dev));
ctrl_err(ctrl, "Cannot add new bus for %s\n",
pci_name(dev));
pci_dev_put(dev);
continue;
}
@ -168,8 +169,10 @@ int shpchp_unconfigure_device(struct slot *p_slot)
int j;
u8 bctl = 0;
struct pci_bus *parent = p_slot->ctrl->pci_dev->subordinate;
struct controller *ctrl = p_slot->ctrl;
dbg("%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,
@ -177,16 +180,17 @@ int shpchp_unconfigure_device(struct slot *p_slot)
if (!temp)
continue;
if ((temp->class >> 16) == PCI_BASE_CLASS_DISPLAY) {
err("Cannot remove display device %s\n",
pci_name(temp));
ctrl_err(ctrl, "Cannot remove display device %s\n",
pci_name(temp));
pci_dev_put(temp);
continue;
}
if (temp->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
pci_read_config_byte(temp, PCI_BRIDGE_CONTROL, &bctl);
if (bctl & PCI_BRIDGE_CTL_VGA) {
err("Cannot remove display device %s\n",
pci_name(temp));
ctrl_err(ctrl,
"Cannot remove display device %s\n",
pci_name(temp));
pci_dev_put(temp);
continue;
}

60
drivers/pci/irq.c Normal file
View File

@ -0,0 +1,60 @@
/*
* PCI IRQ failure handing code
*
* Copyright (c) 2008 James Bottomley <James.Bottomley@HansenPartnership.com>
*/
#include <linux/acpi.h>
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/pci.h>
static void pci_note_irq_problem(struct pci_dev *pdev, const char *reason)
{
struct pci_dev *parent = to_pci_dev(pdev->dev.parent);
dev_printk(KERN_ERR, &pdev->dev,
"Potentially misrouted IRQ (Bridge %s %04x:%04x)\n",
parent->dev.bus_id, parent->vendor, parent->device);
dev_printk(KERN_ERR, &pdev->dev, "%s\n", reason);
dev_printk(KERN_ERR, &pdev->dev, "Please report to linux-kernel@vger.kernel.org\n");
WARN_ON(1);
}
/**
* pci_lost_interrupt - reports a lost PCI interrupt
* @pdev: device whose interrupt is lost
*
* The primary function of this routine is to report a lost interrupt
* in a standard way which users can recognise (instead of blaming the
* driver).
*
* Returns:
* a suggestion for fixing it (although the driver is not required to
* act on this).
*/
enum pci_lost_interrupt_reason pci_lost_interrupt(struct pci_dev *pdev)
{
if (pdev->msi_enabled || pdev->msix_enabled) {
enum pci_lost_interrupt_reason ret;
if (pdev->msix_enabled) {
pci_note_irq_problem(pdev, "MSIX routing failure");
ret = PCI_LOST_IRQ_DISABLE_MSIX;
} else {
pci_note_irq_problem(pdev, "MSI routing failure");
ret = PCI_LOST_IRQ_DISABLE_MSI;
}
return ret;
}
#ifdef CONFIG_ACPI
if (!(acpi_disabled || acpi_noirq)) {
pci_note_irq_problem(pdev, "Potential ACPI misrouting please reboot with acpi=noirq");
/* currently no way to fix acpi on the fly */
return PCI_LOST_IRQ_DISABLE_ACPI;
}
#endif
pci_note_irq_problem(pdev, "unknown cause (not MSI or ACPI)");
return PCI_LOST_IRQ_NO_INFORMATION;
}
EXPORT_SYMBOL(pci_lost_interrupt);

25
drivers/pci/pci.c
View File

@ -1309,27 +1309,32 @@ void pci_enable_ari(struct pci_dev *dev)
int pos;
u32 cap;
u16 ctrl;
struct pci_dev *bridge;
if (!dev->is_pcie)
if (!dev->is_pcie || dev->devfn)
return;
if (dev->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
dev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM)
return;
pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ARI);
if (!pos)
return;
pci_read_config_dword(dev, pos + PCI_EXP_DEVCAP2, &cap);
bridge = dev->bus->self;
if (!bridge || !bridge->is_pcie)
return;
pos = pci_find_capability(bridge, PCI_CAP_ID_EXP);
if (!pos)
return;
pci_read_config_dword(bridge, pos + PCI_EXP_DEVCAP2, &cap);
if (!(cap & PCI_EXP_DEVCAP2_ARI))
return;
pci_read_config_word(dev, pos + PCI_EXP_DEVCTL2, &ctrl);
pci_read_config_word(bridge, pos + PCI_EXP_DEVCTL2, &ctrl);
ctrl |= PCI_EXP_DEVCTL2_ARI;
pci_write_config_word(dev, pos + PCI_EXP_DEVCTL2, ctrl);
pci_write_config_word(bridge, pos + PCI_EXP_DEVCTL2, ctrl);
dev->ari_enabled = 1;
bridge->ari_enabled = 1;
}
int

3
drivers/pci/probe.c
View File

@ -298,9 +298,6 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child)
child->resource[i] = child->parent->resource[i - 3];
}
for(i=0; i<3; i++)
child->resource[i] = &dev->resource[PCI_BRIDGE_RESOURCES+i];
res = child->resource[0];
pci_read_config_byte(dev, PCI_IO_BASE, &io_base_lo);
pci_read_config_byte(dev, PCI_IO_LIMIT, &io_limit_lo);

7
include/linux/pci.h
View File

@ -546,6 +546,13 @@ struct pci_dev __deprecated *pci_find_slot(unsigned int bus,
unsigned int devfn);
#endif /* CONFIG_PCI_LEGACY */
enum pci_lost_interrupt_reason {
PCI_LOST_IRQ_NO_INFORMATION = 0,
PCI_LOST_IRQ_DISABLE_MSI,
PCI_LOST_IRQ_DISABLE_MSIX,
PCI_LOST_IRQ_DISABLE_ACPI,
};
enum pci_lost_interrupt_reason pci_lost_interrupt(struct pci_dev *dev);
int pci_find_capability(struct pci_dev *dev, int cap);
int pci_find_next_capability(struct pci_dev *dev, u8 pos, int cap);
int pci_find_ext_capability(struct pci_dev *dev, int cap);