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[PATCH] shpchp: reduce debug message verbosity

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Reduce the number of debug messages generated if shpchp debug is
enabled. I tried to restrict this to removing debug messages that
are either early-driver-debug type messages, or print information
that can be inferred through other debug prints.

Signed-off-by: Rajesh Shah <rajesh.shah@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
rajesh.shah@intel.com 2005-10-13 12:05:43 -07:00 committed by Greg Kroah-Hartman
parent ee138334d5
commit 7c8942f993
4 changed files with 7 additions and 65 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/pci/hotplug/shpchp.h
View File

@ -293,12 +293,9 @@ static inline struct slot *shpchp_find_slot (struct controller *ctrl, u8 device)
p_slot = ctrl->slot;
dbg("p_slot = %p\n", p_slot);
while (p_slot && (p_slot->device != device)) {
tmp_slot = p_slot;
p_slot = p_slot->next;
dbg("In while loop, p_slot = %p\n", p_slot);
}
if (p_slot == NULL) {
err("ERROR: shpchp_find_slot device=0x%x\n", device);
@ -313,8 +310,6 @@ static inline int wait_for_ctrl_irq (struct controller *ctrl)
DECLARE_WAITQUEUE(wait, current);
int retval = 0;
dbg("%s : start\n",__FUNCTION__);
add_wait_queue(&ctrl->queue, &wait);
if (!shpchp_poll_mode) {
@ -328,7 +323,6 @@ static inline int wait_for_ctrl_irq (struct controller *ctrl)
if (signal_pending(current))
retval = -EINTR;
dbg("%s : end\n", __FUNCTION__);
return retval;
}

8
drivers/pci/hotplug/shpchp_core.c
View File

@ -105,8 +105,6 @@ static int init_slots(struct controller *ctrl)
u32 slot_number, sun;
int result = -ENOMEM;
dbg("%s\n",__FUNCTION__);
number_of_slots = ctrl->num_slots;
slot_device = ctrl->slot_device_offset;
slot_number = ctrl->first_slot;
@ -373,15 +371,12 @@ static int shpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
}
memset(ctrl, 0, sizeof(struct controller));
dbg("DRV_thread pid = %d\n", current->pid);
rc = shpc_init(ctrl, pdev);
if (rc) {
dbg("%s: controller initialization failed\n", SHPC_MODULE_NAME);
goto err_out_free_ctrl;
}
dbg("%s: controller initialization success\n", __FUNCTION__);
ctrl->pci_dev = pdev; /* pci_dev of the P2P bridge */
pci_set_drvdata(pdev, ctrl);
@ -488,8 +483,6 @@ static void __exit unload_shpchpd(void)
cleanup_slots(ctrl);
kfree (ctrl->pci_bus);
dbg("%s: calling release_ctlr\n", __FUNCTION__);
ctrl->hpc_ops->release_ctlr(ctrl);
tctrl = ctrl;
@ -558,7 +551,6 @@ static void __exit shpcd_cleanup(void)
dbg("unload_shpchpd()\n");
unload_shpchpd();
dbg("pci_unregister_driver\n");
pci_unregister_driver(&shpc_driver);
info(DRIVER_DESC " version: " DRIVER_VERSION " unloaded\n");

11
drivers/pci/hotplug/shpchp_ctrl.c
View File

@ -505,9 +505,7 @@ static int board_added(struct slot *p_slot)
up(&ctrl->crit_sect);
/* Wait for ~1 second */
dbg("%s: before long_delay\n", __FUNCTION__);
wait_for_ctrl_irq (ctrl);
dbg("%s: after long_delay\n", __FUNCTION__);
dbg("%s: slot status = %x\n", __FUNCTION__, p_slot->status);
/* Check for a power fault */
@ -666,13 +664,11 @@ static void shpchp_pushbutton_thread (unsigned long slot)
p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
if (getstatus) {
p_slot->state = POWEROFF_STATE;
dbg("In power_down_board, b:d(%x:%x)\n", p_slot->bus, p_slot->device);
shpchp_disable_slot(p_slot);
p_slot->state = STATIC_STATE;
} else {
p_slot->state = POWERON_STATE;
dbg("In add_board, b:d(%x:%x)\n", p_slot->bus, p_slot->device);
if (shpchp_enable_slot(p_slot)) {
/* Wait for exclusive access to hardware */
@ -734,7 +730,6 @@ int shpchp_event_start_thread (void)
err ("Can't start up our event thread\n");
return -1;
}
dbg("Our event thread pid = %d\n", pid);
return 0;
}
@ -742,9 +737,7 @@ int shpchp_event_start_thread (void)
void shpchp_event_stop_thread (void)
{
event_finished = 1;
dbg("event_thread finish command given\n");
up(&event_semaphore);
dbg("wait for event_thread to exit\n");
down(&event_exit);
}
@ -776,7 +769,6 @@ static void interrupt_event_handler(struct controller *ctrl)
u8 getstatus;
struct slot *p_slot;
dbg("%s:\n", __FUNCTION__);
while (change) {
change = 0;
@ -788,9 +780,6 @@ static void interrupt_event_handler(struct controller *ctrl)
p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);
dbg("%s: hp_slot %d, p_slot %p\n",
__FUNCTION__, hp_slot, p_slot);
if (ctrl->event_queue[loop].event_type == INT_BUTTON_CANCEL) {
dbg("%s: button cancel\n", __FUNCTION__);
del_timer(&p_slot->task_event);

47
drivers/pci/hotplug/shpchp_hpc.c
View File

@ -313,7 +313,6 @@ static int shpc_write_cmd(struct slot *slot, u8 t_slot, u8 cmd)
* command.
*/
writew(temp_word, php_ctlr->creg + CMD);
dbg("%s: temp_word written %x\n", __FUNCTION__, temp_word);
DBG_LEAVE_ROUTINE
return retval;
@ -789,10 +788,8 @@ static void hpc_release_ctlr(struct controller *ctrl)
}
}
if (php_ctlr->pci_dev) {
dbg("%s: before calling iounmap & release_mem_region\n", __FUNCTION__);
iounmap(php_ctlr->creg);
release_mem_region(pci_resource_start(php_ctlr->pci_dev, 0), pci_resource_len(php_ctlr->pci_dev, 0));
dbg("%s: before calling iounmap & release_mem_region\n", __FUNCTION__);
php_ctlr->pci_dev = NULL;
}
@ -1043,18 +1040,13 @@ static irqreturn_t shpc_isr(int IRQ, void *dev_id, struct pt_regs *regs)
if (!intr_loc)
return IRQ_NONE;
dbg("%s: shpc_isr proceeds\n", __FUNCTION__);
dbg("%s: intr_loc = %x\n",__FUNCTION__, intr_loc);
if(!shpchp_poll_mode) {
/* Mask Global Interrupt Mask - see implementation note on p. 139 */
/* of SHPC spec rev 1.0*/
temp_dword = readl(php_ctlr->creg + SERR_INTR_ENABLE);
dbg("%s: Before masking global interrupt, temp_dword = %x\n",
__FUNCTION__, temp_dword);
temp_dword |= 0x00000001;
dbg("%s: After masking global interrupt, temp_dword = %x\n",
__FUNCTION__, temp_dword);
writel(temp_dword, php_ctlr->creg + SERR_INTR_ENABLE);
intr_loc2 = readl(php_ctlr->creg + INTR_LOC);
@ -1068,11 +1060,7 @@ static irqreturn_t shpc_isr(int IRQ, void *dev_id, struct pt_regs *regs)
* Detect bit in Controller SERR-INT register
*/
temp_dword = readl(php_ctlr->creg + SERR_INTR_ENABLE);
dbg("%s: Before clearing CCIP, temp_dword = %x\n",
__FUNCTION__, temp_dword);
temp_dword &= 0xfffeffff;
dbg("%s: After clearing CCIP, temp_dword = %x\n",
__FUNCTION__, temp_dword);
writel(temp_dword, php_ctlr->creg + SERR_INTR_ENABLE);
wake_up_interruptible(&ctrl->queue);
}
@ -1080,11 +1068,7 @@ static irqreturn_t shpc_isr(int IRQ, void *dev_id, struct pt_regs *regs)
if ((intr_loc = (intr_loc >> 1)) == 0) {
/* Unmask Global Interrupt Mask */
temp_dword = readl(php_ctlr->creg + SERR_INTR_ENABLE);
dbg("%s: 1-Before unmasking global interrupt, temp_dword = %x\n",
__FUNCTION__, temp_dword);
temp_dword &= 0xfffffffe;
dbg("%s: 1-After unmasking global interrupt, temp_dword = %x\n",
__FUNCTION__, temp_dword);
writel(temp_dword, php_ctlr->creg + SERR_INTR_ENABLE);
return IRQ_NONE;
@ -1094,11 +1078,9 @@ static irqreturn_t shpc_isr(int IRQ, void *dev_id, struct pt_regs *regs)
/* To find out which slot has interrupt pending */
if ((intr_loc >> hp_slot) & 0x01) {
temp_dword = readl(php_ctlr->creg + SLOT1 + (4*hp_slot));
dbg("%s: Slot %x with intr, temp_dword = %x\n",
__FUNCTION__, hp_slot, temp_dword);
dbg("%s: Slot %x with intr, slot register = %x\n",
__FUNCTION__, hp_slot, temp_dword);
temp_byte = (temp_dword >> 16) & 0xFF;
dbg("%s: Slot with intr, temp_byte = %x\n",
__FUNCTION__, temp_byte);
if ((php_ctlr->switch_change_callback) && (temp_byte & 0x08))
schedule_flag += php_ctlr->switch_change_callback(
hp_slot, php_ctlr->callback_instance_id);
@ -1114,8 +1096,6 @@ static irqreturn_t shpc_isr(int IRQ, void *dev_id, struct pt_regs *regs)
/* Clear all slot events */
temp_dword = 0xe01f3fff;
dbg("%s: Clearing slot events, temp_dword = %x\n",
__FUNCTION__, temp_dword);
writel(temp_dword, php_ctlr->creg + SLOT1 + (4*hp_slot));
intr_loc2 = readl(php_ctlr->creg + INTR_LOC);
@ -1125,11 +1105,7 @@ static irqreturn_t shpc_isr(int IRQ, void *dev_id, struct pt_regs *regs)
if (!shpchp_poll_mode) {
/* Unmask Global Interrupt Mask */
temp_dword = readl(php_ctlr->creg + SERR_INTR_ENABLE);
dbg("%s: 2-Before unmasking global interrupt, temp_dword = %x\n",
__FUNCTION__, temp_dword);
temp_dword &= 0xfffffffe;
dbg("%s: 2-After unmasking global interrupt, temp_dword = %x\n",
__FUNCTION__, temp_dword);
writel(temp_dword, php_ctlr->creg + SERR_INTR_ENABLE);
}
@ -1402,7 +1378,8 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
err("%s : pci_read_config_dword failed\n", __FUNCTION__);
goto abort_free_ctlr;
}
dbg("%s: offset %d: tempdword %x\n", __FUNCTION__,i, tempdword);
dbg("%s: offset %d: value %x\n", __FUNCTION__,i,
tempdword);
}
}
@ -1411,13 +1388,6 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
first = 0;
}
dbg("pdev = %p: b:d:f:irq=0x%x:%x:%x:%x\n", pdev, pdev->bus->number, PCI_SLOT(pdev->devfn),
PCI_FUNC(pdev->devfn), pdev->irq);
for ( rc = 0; rc < DEVICE_COUNT_RESOURCE; rc++)
if (pci_resource_len(pdev, rc) > 0)
dbg("pci resource[%d] start=0x%lx(len=0x%lx), shpc_base_offset %x\n", rc,
pci_resource_start(pdev, rc), pci_resource_len(pdev, rc), shpc_base_offset);
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);
@ -1437,7 +1407,6 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
goto abort_free_ctlr;
}
dbg("%s: php_ctlr->creg %p\n", __FUNCTION__, php_ctlr->creg);
dbg("%s: physical addr %p\n", __FUNCTION__, (void*)pci_resource_start(pdev, 0));
init_MUTEX(&ctrl->crit_sect);
/* Setup wait queue */
@ -1445,8 +1414,6 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
/* Find the IRQ */
php_ctlr->irq = pdev->irq;
dbg("HPC interrupt = %d\n", php_ctlr->irq);
php_ctlr->attention_button_callback = shpchp_handle_attention_button,
php_ctlr->switch_change_callback = shpchp_handle_switch_change;
php_ctlr->presence_change_callback = shpchp_handle_presence_change;
@ -1488,7 +1455,6 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
if (rc) {
info("Can't get msi for the hotplug controller\n");
info("Use INTx for the hotplug controller\n");
dbg("%s: rc = %x\n", __FUNCTION__, rc);
} else
php_ctlr->irq = pdev->irq;
@ -1499,8 +1465,10 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
goto abort_free_ctlr;
}
}
dbg("%s: HPC at b:d:f:irq=0x%x:%x:%x:%x\n", __FUNCTION__,
pdev->bus->number, PCI_SLOT(pdev->devfn),
PCI_FUNC(pdev->devfn), pdev->irq);
get_hp_hw_control_from_firmware(pdev);
dbg("%s: Before adding HPC to HPC list\n", __FUNCTION__);
/* Add this HPC instance into the HPC list */
spin_lock(&list_lock);
@ -1539,7 +1507,6 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
dbg("%s: SERR_INTR_ENABLE = %x\n", __FUNCTION__, tempdword);
}
dbg("%s: Leaving shpc_init\n", __FUNCTION__);
DBG_LEAVE_ROUTINE
return 0;