diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/hotplug/acpiphp.h | 3 | ||||
| -rw-r--r-- | drivers/pci/hotplug/acpiphp_glue.c | 12 | ||||
| -rw-r--r-- | drivers/pci/hotplug/cpqphp.h | 3 | ||||
| -rw-r--r-- | drivers/pci/hotplug/cpqphp_core.c | 14 | ||||
| -rw-r--r-- | drivers/pci/hotplug/cpqphp_ctrl.c | 56 | ||||
| -rw-r--r-- | drivers/pci/hotplug/ibmphp_hpc.c | 10 | ||||
| -rw-r--r-- | drivers/pci/hotplug/pciehp.h | 3 | ||||
| -rw-r--r-- | drivers/pci/hotplug/pciehp_core.c | 6 | ||||
| -rw-r--r-- | drivers/pci/hotplug/pciehp_ctrl.c | 68 | ||||
| -rw-r--r-- | drivers/pci/hotplug/pciehp_hpc.c | 2 | ||||
| -rw-r--r-- | drivers/pci/hotplug/shpchp.h | 3 | ||||
| -rw-r--r-- | drivers/pci/hotplug/shpchp_ctrl.c | 98 | ||||
| -rw-r--r-- | drivers/pci/hotplug/shpchp_hpc.c | 2 |
13 files changed, 143 insertions, 137 deletions
diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h index 293603e1b7c..6a91cfb0f68 100644 --- a/drivers/pci/hotplug/acpiphp.h +++ b/drivers/pci/hotplug/acpiphp.h @@ -37,6 +37,7 @@ #include <linux/acpi.h> #include <linux/kobject.h> /* for KOBJ_NAME_LEN */ +#include <linux/mutex.h> #include "pci_hotplug.h" #define dbg(format, arg...) \ @@ -118,7 +119,7 @@ struct acpiphp_slot { struct acpiphp_bridge *bridge; /* parent */ struct list_head funcs; /* one slot may have different objects (i.e. for each function) */ - struct semaphore crit_sect; + struct mutex crit_sect; u32 id; /* slot id (serial #) for hotplug core */ u8 device; /* pci device# */ diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index 509a5b3ae99..4e25d9c7cc3 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -46,7 +46,7 @@ #include <linux/kernel.h> #include <linux/pci.h> #include <linux/smp_lock.h> -#include <asm/semaphore.h> +#include <linux/mutex.h> #include "../pci.h" #include "pci_hotplug.h" @@ -188,7 +188,7 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv) slot->device = device; slot->sun = sun; INIT_LIST_HEAD(&slot->funcs); - init_MUTEX(&slot->crit_sect); + mutex_init(&slot->crit_sect); slot->next = bridge->slots; bridge->slots = slot; @@ -1401,7 +1401,7 @@ int acpiphp_enable_slot(struct acpiphp_slot *slot) { int retval; - down(&slot->crit_sect); + mutex_lock(&slot->crit_sect); /* wake up all functions */ retval = power_on_slot(slot); @@ -1413,7 +1413,7 @@ int acpiphp_enable_slot(struct acpiphp_slot *slot) retval = enable_device(slot); err_exit: - up(&slot->crit_sect); + mutex_unlock(&slot->crit_sect); return retval; } @@ -1424,7 +1424,7 @@ int acpiphp_disable_slot(struct acpiphp_slot *slot) { int retval = 0; - down(&slot->crit_sect); + mutex_lock(&slot->crit_sect); /* unconfigure all functions */ retval = disable_device(slot); @@ -1437,7 +1437,7 @@ int acpiphp_disable_slot(struct acpiphp_slot *slot) goto err_exit; err_exit: - up(&slot->crit_sect); + mutex_unlock(&slot->crit_sect); return retval; } diff --git a/drivers/pci/hotplug/cpqphp.h b/drivers/pci/hotplug/cpqphp.h index cb88404c89f..c74e9e37e76 100644 --- a/drivers/pci/hotplug/cpqphp.h +++ b/drivers/pci/hotplug/cpqphp.h @@ -32,6 +32,7 @@ #include <linux/interrupt.h> #include <asm/io.h> /* for read? and write? functions */ #include <linux/delay.h> /* for delays */ +#include <linux/mutex.h> #define MY_NAME "cpqphp" @@ -286,7 +287,7 @@ struct event_info { struct controller { struct controller *next; u32 ctrl_int_comp; - struct semaphore crit_sect; /* critical section semaphore */ + struct mutex crit_sect; /* critical section mutex */ void __iomem *hpc_reg; /* cookie for our pci controller location */ struct pci_resource *mem_head; struct pci_resource *p_mem_head; diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c index b3659ffccac..8626901daeb 100644 --- a/drivers/pci/hotplug/cpqphp_core.c +++ b/drivers/pci/hotplug/cpqphp_core.c @@ -599,7 +599,7 @@ cpqhp_set_attention_status(struct controller *ctrl, struct pci_func *func, hp_slot = func->device - ctrl->slot_device_offset; // Wait for exclusive access to hardware - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); if (status == 1) { amber_LED_on (ctrl, hp_slot); @@ -607,7 +607,7 @@ cpqhp_set_attention_status(struct controller *ctrl, struct pci_func *func, amber_LED_off (ctrl, hp_slot); } else { // Done with exclusive hardware access - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return(1); } @@ -617,7 +617,7 @@ cpqhp_set_attention_status(struct controller *ctrl, struct pci_func *func, wait_for_ctrl_irq (ctrl); // Done with exclusive hardware access - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return(0); } @@ -1084,7 +1084,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) dbg("bus device function rev: %d %d %d %d\n", ctrl->bus, PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn), ctrl->rev); - init_MUTEX(&ctrl->crit_sect); + mutex_init(&ctrl->crit_sect); init_waitqueue_head(&ctrl->queue); /* initialize our threads if they haven't already been started up */ @@ -1223,7 +1223,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) // turn off empty slots here unless command line option "ON" set // Wait for exclusive access to hardware - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); num_of_slots = readb(ctrl->hpc_reg + SLOT_MASK) & 0x0F; @@ -1270,12 +1270,12 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) rc = init_SERR(ctrl); if (rc) { err("init_SERR failed\n"); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); goto err_free_irq; } // Done with exclusive hardware access - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); cpqhp_create_debugfs_files(ctrl); diff --git a/drivers/pci/hotplug/cpqphp_ctrl.c b/drivers/pci/hotplug/cpqphp_ctrl.c index 771ed34b181..72eb8e2d206 100644 --- a/drivers/pci/hotplug/cpqphp_ctrl.c +++ b/drivers/pci/hotplug/cpqphp_ctrl.c @@ -1299,7 +1299,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl) **********************************/ rc = CARD_FUNCTIONING; } else { - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); /* turn on board without attaching to the bus */ enable_slot_power (ctrl, hp_slot); @@ -1333,12 +1333,12 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl) /* Wait for SOBS to be unset */ wait_for_ctrl_irq (ctrl); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); if (rc) return rc; - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); slot_enable (ctrl, hp_slot); green_LED_blink (ctrl, hp_slot); @@ -1350,7 +1350,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl) /* Wait for SOBS to be unset */ wait_for_ctrl_irq (ctrl); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); /* Wait for ~1 second because of hot plug spec */ long_delay(1*HZ); @@ -1375,7 +1375,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl) * called for the "base" bus/dev/func of an * adapter. */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); amber_LED_on (ctrl, hp_slot); green_LED_off (ctrl, hp_slot); @@ -1386,7 +1386,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl) /* Wait for SOBS to be unset */ wait_for_ctrl_irq (ctrl); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); if (rc) return rc; @@ -1410,7 +1410,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl) * called for the "base" bus/dev/func of an * adapter. */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); amber_LED_on (ctrl, hp_slot); green_LED_off (ctrl, hp_slot); @@ -1421,13 +1421,13 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl) /* Wait for SOBS to be unset */ wait_for_ctrl_irq (ctrl); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return rc; } /* Done configuring so turn LED on full time */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); green_LED_on (ctrl, hp_slot); @@ -1436,7 +1436,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl) /* Wait for SOBS to be unset */ wait_for_ctrl_irq (ctrl); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); rc = 0; } else { /* Something is wrong @@ -1445,7 +1445,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl) * in this case it will always be called for the "base" * bus/dev/func of an adapter. */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); amber_LED_on (ctrl, hp_slot); green_LED_off (ctrl, hp_slot); @@ -1456,7 +1456,7 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl) /* Wait for SOBS to be unset */ wait_for_ctrl_irq (ctrl); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); } } @@ -1488,7 +1488,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl) dbg("%s: func->device, slot_offset, hp_slot = %d, %d ,%d\n", __FUNCTION__, func->device, ctrl->slot_device_offset, hp_slot); - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); /* turn on board without attaching to the bus */ enable_slot_power(ctrl, hp_slot); @@ -1522,7 +1522,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl) /* Wait for SOBS to be unset */ wait_for_ctrl_irq(ctrl); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); if (rc) return rc; @@ -1532,7 +1532,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl) /* turn on board and blink green LED */ dbg("%s: before down\n", __FUNCTION__); - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); dbg("%s: after down\n", __FUNCTION__); dbg("%s: before slot_enable\n", __FUNCTION__); @@ -1553,7 +1553,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl) dbg("%s: after wait_for_ctrl_irq\n", __FUNCTION__); dbg("%s: before up\n", __FUNCTION__); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); dbg("%s: after up\n", __FUNCTION__); /* Wait for ~1 second because of hot plug spec */ @@ -1607,7 +1607,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl) cpqhp_resource_sort_and_combine(&(ctrl->bus_head)); if (rc) { - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); amber_LED_on (ctrl, hp_slot); green_LED_off (ctrl, hp_slot); @@ -1618,7 +1618,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl) /* Wait for SOBS to be unset */ wait_for_ctrl_irq (ctrl); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return rc; } else { cpqhp_save_slot_config(ctrl, func); @@ -1640,7 +1640,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl) } } while (new_slot); - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); green_LED_on (ctrl, hp_slot); @@ -1649,9 +1649,9 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl) /* Wait for SOBS to be unset */ wait_for_ctrl_irq (ctrl); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); } else { - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); amber_LED_on (ctrl, hp_slot); green_LED_off (ctrl, hp_slot); @@ -1662,7 +1662,7 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl) /* Wait for SOBS to be unset */ wait_for_ctrl_irq (ctrl); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return rc; } @@ -1721,7 +1721,7 @@ static u32 remove_board(struct pci_func * func, u32 replace_flag, struct control func->status = 0x01; func->configured = 0; - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); green_LED_off (ctrl, hp_slot); slot_disable (ctrl, hp_slot); @@ -1736,7 +1736,7 @@ static u32 remove_board(struct pci_func * func, u32 replace_flag, struct control /* Wait for SOBS to be unset */ wait_for_ctrl_irq (ctrl); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); if (!replace_flag && ctrl->add_support) { while (func) { @@ -1899,7 +1899,7 @@ static void interrupt_event_handler(struct controller *ctrl) dbg("button cancel\n"); del_timer(&p_slot->task_event); - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); if (p_slot->state == BLINKINGOFF_STATE) { /* slot is on */ @@ -1922,7 +1922,7 @@ static void interrupt_event_handler(struct controller *ctrl) /* Wait for SOBS to be unset */ wait_for_ctrl_irq (ctrl); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); } /*** button Released (No action on press...) */ else if (ctrl->event_queue[loop].event_type == INT_BUTTON_RELEASE) { @@ -1937,7 +1937,7 @@ static void interrupt_event_handler(struct controller *ctrl) p_slot->state = BLINKINGON_STATE; info(msg_button_on, p_slot->number); } - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); dbg("blink green LED and turn off amber\n"); @@ -1949,7 +1949,7 @@ static void interrupt_event_handler(struct controller *ctrl) /* Wait for SOBS to be unset */ wait_for_ctrl_irq (ctrl); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); init_timer(&p_slot->task_event); p_slot->hp_slot = hp_slot; p_slot->ctrl = ctrl; diff --git a/drivers/pci/hotplug/ibmphp_hpc.c b/drivers/pci/hotplug/ibmphp_hpc.c index 1a3eb8d3d4c..d680bb472c7 100644 --- a/drivers/pci/hotplug/ibmphp_hpc.c +++ b/drivers/pci/hotplug/ibmphp_hpc.c @@ -34,6 +34,8 @@ #include <linux/pci.h> #include <linux/smp_lock.h> #include <linux/init.h> +#include <linux/mutex.h> + #include "ibmphp.h" static int to_debug = FALSE; @@ -101,7 +103,7 @@ static int to_debug = FALSE; //---------------------------------------------------------------------------- static int ibmphp_shutdown; static int tid_poll; -static struct semaphore sem_hpcaccess; // lock access to HPC +static struct mutex sem_hpcaccess; // lock access to HPC static struct semaphore semOperations; // lock all operations and // access to data structures static struct semaphore sem_exit; // make sure polling thread goes away @@ -131,7 +133,7 @@ void __init ibmphp_hpc_initvars (void) { debug ("%s - Entry\n", __FUNCTION__); - init_MUTEX (&sem_hpcaccess); + mutex_init(&sem_hpcaccess); init_MUTEX (&semOperations); init_MUTEX_LOCKED (&sem_exit); to_debug = FALSE; @@ -778,7 +780,7 @@ int ibmphp_hpc_writeslot (struct slot * pslot, u8 cmd) *---------------------------------------------------------------------*/ static void get_hpc_access (void) { - down (&sem_hpcaccess); + mutex_lock(&sem_hpcaccess); } /*---------------------------------------------------------------------- @@ -786,7 +788,7 @@ static void get_hpc_access (void) *---------------------------------------------------------------------*/ void free_hpc_access (void) { - up (&sem_hpcaccess); + mutex_unlock(&sem_hpcaccess); } /*---------------------------------------------------------------------- diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h index 0aac6a61337..e0adf4bc89e 100644 --- a/drivers/pci/hotplug/pciehp.h +++ b/drivers/pci/hotplug/pciehp.h @@ -34,6 +34,7 @@ #include <linux/delay.h> #include <linux/sched.h> /* signal_pending() */ #include <linux/pcieport_if.h> +#include <linux/mutex.h> #include "pci_hotplug.h" #define MY_NAME "pciehp" @@ -96,7 +97,7 @@ struct php_ctlr_state_s { #define MAX_EVENTS 10 struct controller { struct controller *next; - struct semaphore crit_sect; /* critical section semaphore */ + struct mutex crit_sect; /* critical section mutex */ struct php_ctlr_state_s *hpc_ctlr_handle; /* HPC controller handle */ int num_slots; /* Number of slots on ctlr */ int slot_num_inc; /* 1 or -1 */ diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c index 4fb569018a2..1e8506e0fd8 100644 --- a/drivers/pci/hotplug/pciehp_core.c +++ b/drivers/pci/hotplug/pciehp_core.c @@ -439,7 +439,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ } /* Wait for exclusive access to hardware */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); t_slot->hpc_ops->get_adapter_status(t_slot, &value); /* Check if slot is occupied */ @@ -447,7 +447,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ rc = t_slot->hpc_ops->power_off_slot(t_slot); /* Power off slot if not occupied*/ if (rc) { /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); goto err_out_free_ctrl_slot; } else /* Wait for the command to complete */ @@ -455,7 +455,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ } /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return 0; diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c index 83c4b865718..33d19876835 100644 --- a/drivers/pci/hotplug/pciehp_ctrl.c +++ b/drivers/pci/hotplug/pciehp_ctrl.c @@ -229,13 +229,13 @@ u8 pciehp_handle_power_fault(u8 hp_slot, void *inst_id) static void set_slot_off(struct controller *ctrl, struct slot * pslot) { /* Wait for exclusive access to hardware */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); /* turn off slot, turn on Amber LED, turn off Green LED if supported*/ if (POWER_CTRL(ctrl->ctrlcap)) { if (pslot->hpc_ops->power_off_slot(pslot)) { err("%s: Issue of Slot Power Off command failed\n", __FUNCTION__); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return; } wait_for_ctrl_irq (ctrl); @@ -249,14 +249,14 @@ static void set_slot_off(struct controller *ctrl, struct slot * pslot) if (ATTN_LED(ctrl->ctrlcap)) { if (pslot->hpc_ops->set_attention_status(pslot, 1)) { err("%s: Issue of Set Attention Led command failed\n", __FUNCTION__); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return; } wait_for_ctrl_irq (ctrl); } /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); } /** @@ -279,13 +279,13 @@ static int board_added(struct slot *p_slot) ctrl->slot_device_offset, hp_slot); /* Wait for exclusive access to hardware */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); if (POWER_CTRL(ctrl->ctrlcap)) { /* Power on slot */ rc = p_slot->hpc_ops->power_on_slot(p_slot); if (rc) { - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return -1; } @@ -301,7 +301,7 @@ static int board_added(struct slot *p_slot) } /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); /* Wait for ~1 second */ wait_for_ctrl_irq (ctrl); @@ -335,7 +335,7 @@ static int board_added(struct slot *p_slot) pci_fixup_device(pci_fixup_final, ctrl->pci_dev); if (PWR_LED(ctrl->ctrlcap)) { /* Wait for exclusive access to hardware */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); p_slot->hpc_ops->green_led_on(p_slot); @@ -343,7 +343,7 @@ static int board_added(struct slot *p_slot) wait_for_ctrl_irq (ctrl); /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); } return 0; @@ -375,14 +375,14 @@ static int remove_board(struct slot *p_slot) dbg("In %s, hp_slot = %d\n", __FUNCTION__, hp_slot); /* Wait for exclusive access to hardware */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); if (POWER_CTRL(ctrl->ctrlcap)) { /* power off slot */ rc = p_slot->hpc_ops->power_off_slot(p_slot); if (rc) { err("%s: Issue of Slot Disable command failed\n", __FUNCTION__); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return rc; } /* Wait for the command to complete */ @@ -398,7 +398,7 @@ static int remove_board(struct slot *p_slot) } /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return 0; } @@ -445,7 +445,7 @@ static void pciehp_pushbutton_thread(unsigned long slot) if (pciehp_enable_slot(p_slot) && PWR_LED(p_slot->ctrl->ctrlcap)) { /* Wait for exclusive access to hardware */ - down(&p_slot->ctrl->crit_sect); + mutex_lock(&p_slot->ctrl->crit_sect); p_slot->hpc_ops->green_led_off(p_slot); @@ -453,7 +453,7 @@ static void pciehp_pushbutton_thread(unsigned long slot) wait_for_ctrl_irq (p_slot->ctrl); /* Done with exclusive hardware access */ - up(&p_slot->ctrl->crit_sect); + mutex_unlock(&p_slot->ctrl->crit_sect); } p_slot->state = STATIC_STATE; } @@ -495,7 +495,7 @@ static void pciehp_surprise_rm_thread(unsigned long slot) if (pciehp_enable_slot(p_slot) && PWR_LED(p_slot->ctrl->ctrlcap)) { /* Wait for exclusive access to hardware */ - down(&p_slot->ctrl->crit_sect); + mutex_lock(&p_slot->ctrl->crit_sect); p_slot->hpc_ops->green_led_off(p_slot); @@ -503,7 +503,7 @@ static void pciehp_surprise_rm_thread(unsigned long slot) wait_for_ctrl_irq (p_slot->ctrl); /* Done with exclusive hardware access */ - up(&p_slot->ctrl->crit_sect); + mutex_unlock(&p_slot->ctrl->crit_sect); } p_slot->state = STATIC_STATE; } @@ -616,7 +616,7 @@ static void interrupt_event_handler(struct controller *ctrl) switch (p_slot->state) { case BLINKINGOFF_STATE: /* Wait for exclusive access to hardware */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); if (PWR_LED(ctrl->ctrlcap)) { p_slot->hpc_ops->green_led_on(p_slot); @@ -630,11 +630,11 @@ static void interrupt_event_handler(struct controller *ctrl) wait_for_ctrl_irq (ctrl); } /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); break; case BLINKINGON_STATE: /* Wait for exclusive access to hardware */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); if (PWR_LED(ctrl->ctrlcap)) { p_slot->hpc_ops->green_led_off(p_slot); @@ -647,7 +647,7 @@ static void interrupt_event_handler(struct controller *ctrl) wait_for_ctrl_irq (ctrl); } /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); break; default: @@ -676,7 +676,7 @@ static void interrupt_event_handler(struct controller *ctrl) } /* Wait for exclusive access to hardware */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); /* blink green LED and turn off amber */ if (PWR_LED(ctrl->ctrlcap)) { @@ -693,7 +693,7 @@ static void interrupt_event_handler(struct controller *ctrl) } /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); init_timer(&p_slot->task_event); p_slot->task_event.expires = jiffies + 5 * HZ; /* 5 second delay */ @@ -708,7 +708,7 @@ static void interrupt_event_handler(struct controller *ctrl) if (POWER_CTRL(ctrl->ctrlcap)) { dbg("power fault\n"); /* Wait for exclusive access to hardware */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); if (ATTN_LED(ctrl->ctrlcap)) { p_slot->hpc_ops->set_attention_status(p_slot, 1); @@ -721,7 +721,7 @@ static void interrupt_event_handler(struct controller *ctrl) } /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); } } /***********SURPRISE REMOVAL********************/ @@ -756,19 +756,19 @@ int pciehp_enable_slot(struct slot *p_slot) int rc; /* Check to see if (latch closed, card present, power off) */ - down(&p_slot->ctrl->crit_sect); + mutex_lock(&p_slot->ctrl->crit_sect); rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus); if (rc || !getstatus) { info("%s: no adapter on slot(%x)\n", __FUNCTION__, p_slot->number); - up(&p_slot->ctrl->crit_sect); + mutex_unlock(&p_slot->ctrl->crit_sect); return 1; } if (MRL_SENS(p_slot->ctrl->ctrlcap)) { rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); if (rc || getstatus) { info("%s: latch open on slot(%x)\n", __FUNCTION__, p_slot->number); - up(&p_slot->ctrl->crit_sect); + mutex_unlock(&p_slot->ctrl->crit_sect); return 1; } } @@ -777,11 +777,11 @@ int pciehp_enable_slot(struct slot *p_slot) rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus); if (rc || getstatus) { info("%s: already enabled on slot(%x)\n", __FUNCTION__, p_slot->number); - up(&p_slot->ctrl->crit_sect); + mutex_unlock(&p_slot->ctrl->crit_sect); return 1; } } - up(&p_slot->ctrl->crit_sect); + mutex_unlock(&p_slot->ctrl->crit_sect); p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); @@ -806,13 +806,13 @@ int pciehp_disable_slot(struct slot *p_slot) return 1; /* Check to see if (latch closed, card present, power on) */ - down(&p_slot->ctrl->crit_sect); + mutex_lock(&p_slot->ctrl->crit_sect); if (!HP_SUPR_RM(p_slot->ctrl->ctrlcap)) { ret = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus); if (ret || !getstatus) { info("%s: no adapter on slot(%x)\n", __FUNCTION__, p_slot->number); - up(&p_slot->ctrl->crit_sect); + mutex_unlock(&p_slot->ctrl->crit_sect); return 1; } } @@ -821,7 +821,7 @@ int pciehp_disable_slot(struct slot *p_slot) ret = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); if (ret || getstatus) { info("%s: latch open on slot(%x)\n", __FUNCTION__, p_slot->number); - up(&p_slot->ctrl->crit_sect); + mutex_unlock(&p_slot->ctrl->crit_sect); return 1; } } @@ -830,12 +830,12 @@ int pciehp_disable_slot(struct slot *p_slot) ret = p_slot->hpc_ops->get_power_status(p_slot, &getstatus); if (ret || !getstatus) { info("%s: already disabled slot(%x)\n", __FUNCTION__, p_slot->number); - up(&p_slot->ctrl->crit_sect); + mutex_unlock(&p_slot->ctrl->crit_sect); return 1; } } - up(&p_slot->ctrl->crit_sect); + mutex_unlock(&p_slot->ctrl->crit_sect); ret = remove_board(p_slot); update_slot_info(p_slot); diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index 77e530321de..2427b0862cb 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -1334,7 +1334,7 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) if (pci_enable_device(pdev)) goto abort_free_ctlr; - init_MUTEX(&ctrl->crit_sect); + mutex_init(&ctrl->crit_sect); /* setup wait queue */ init_waitqueue_head(&ctrl->queue); diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h index 7d6f521d02e..5a22a43cc38 100644 --- a/drivers/pci/hotplug/shpchp.h +++ b/drivers/pci/hotplug/shpchp.h @@ -33,6 +33,7 @@ #include <linux/pci.h> #include <linux/delay.h> #include <linux/sched.h> /* signal_pending(), struct timer_list */ +#include <linux/mutex.h> #include "pci_hotplug.h" @@ -79,7 +80,7 @@ struct event_info { struct controller { struct controller *next; - struct semaphore crit_sect; /* critical section semaphore */ + struct mutex crit_sect; /* critical section mutex */ struct php_ctlr_state_s *hpc_ctlr_handle; /* HPC controller handle */ int num_slots; /* Number of slots on ctlr */ int slot_num_inc; /* 1 or -1 */ diff --git a/drivers/pci/hotplug/shpchp_ctrl.c b/drivers/pci/hotplug/shpchp_ctrl.c index 643252d9bf3..65e69252e2f 100644 --- a/drivers/pci/hotplug/shpchp_ctrl.c +++ b/drivers/pci/hotplug/shpchp_ctrl.c @@ -242,10 +242,10 @@ static int change_bus_speed(struct controller *ctrl, struct slot *p_slot, int rc = 0; dbg("%s: change to speed %d\n", __FUNCTION__, speed); - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); if ((rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, speed))) { err("%s: Issue of set bus speed mode command failed\n", __FUNCTION__); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return WRONG_BUS_FREQUENCY; } @@ -253,10 +253,10 @@ static int change_bus_speed(struct controller *ctrl, struct slot *p_slot, err("%s: Can't set bus speed/mode in the case of adapter & bus mismatch\n", __FUNCTION__); err("%s: Error code (%d)\n", __FUNCTION__, rc); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return WRONG_BUS_FREQUENCY; } - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return rc; } @@ -319,14 +319,14 @@ static int board_added(struct slot *p_slot) ctrl->slot_device_offset, hp_slot); /* Wait for exclusive access to hardware */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); /* 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", __FUNCTION__); /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return -1; } @@ -334,7 +334,7 @@ static int board_added(struct slot *p_slot) if (rc) { err("%s: Failed to power on slot, error code(%d)\n", __FUNCTION__, rc); /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return -1; } @@ -345,7 +345,7 @@ static int board_added(struct slot *p_slot) 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", __FUNCTION__); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return WRONG_BUS_FREQUENCY; } @@ -353,19 +353,19 @@ static int board_added(struct slot *p_slot) err("%s: Can't set bus speed/mode in the case of adapter & bus mismatch\n", __FUNCTION__); err("%s: Error code (%d)\n", __FUNCTION__, rc); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); 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", __FUNCTION__); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return rc; } if ((rc = p_slot->hpc_ops->check_cmd_status(ctrl))) { err("%s: Failed to enable slot, error code(%d)\n", __FUNCTION__, rc); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return rc; } } @@ -380,7 +380,7 @@ static int board_added(struct slot *p_slot) if (rc || adapter_speed == PCI_SPEED_UNKNOWN) { err("%s: Can't get adapter speed or bus mode mismatch\n", __FUNCTION__); /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return WRONG_BUS_FREQUENCY; } @@ -388,7 +388,7 @@ static int board_added(struct slot *p_slot) if (rc || bus_speed == PCI_SPEED_UNKNOWN) { err("%s: Can't get bus operation speed\n", __FUNCTION__); /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return WRONG_BUS_FREQUENCY; } @@ -399,7 +399,7 @@ static int board_added(struct slot *p_slot) } /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); if ((rc = p_slot->hpc_ops->get_prog_int(p_slot, &pi))) { err("%s: Can't get controller programming interface, set it to 1\n", __FUNCTION__); @@ -481,21 +481,21 @@ static int board_added(struct slot *p_slot) return rc; } - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); /* 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", __FUNCTION__); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return rc; } if ((rc = p_slot->hpc_ops->check_cmd_status(ctrl))) { err("%s: Failed to enable slot, error code(%d)\n", __FUNCTION__, rc); - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return rc; } - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); /* Wait for ~1 second */ wait_for_ctrl_irq (ctrl); @@ -521,25 +521,25 @@ static int board_added(struct slot *p_slot) p_slot->pwr_save = 1; /* Wait for exclusive access to hardware */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); p_slot->hpc_ops->green_led_on(p_slot); /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return 0; err_exit: /* Wait for exclusive access to hardware */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); /* 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", __FUNCTION__); /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return rc; } @@ -547,12 +547,12 @@ err_exit: if (rc) { err("%s: Failed to disable slot, error code(%d)\n", __FUNCTION__, rc); /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return rc; } /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return(rc); } @@ -581,14 +581,14 @@ static int remove_board(struct slot *p_slot) p_slot->status = 0x01; /* Wait for exclusive access to hardware */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); /* 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", __FUNCTION__); /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return rc; } @@ -596,7 +596,7 @@ static int remove_board(struct slot *p_slot) if (rc) { err("%s: Failed to disable slot, error code(%d)\n", __FUNCTION__, rc); /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return rc; } @@ -604,12 +604,12 @@ static int remove_board(struct slot *p_slot) if (rc) { err("%s: Issue of Set Attention command failed\n", __FUNCTION__); /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); return rc; } /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); p_slot->pwr_save = 0; p_slot->is_a_board = 0; @@ -656,12 +656,12 @@ static void shpchp_pushbutton_thread (unsigned long slot) if (shpchp_enable_slot(p_slot)) { /* Wait for exclusive access to hardware */ - down(&p_slot->ctrl->crit_sect); + mutex_lock(&p_slot->ctrl->crit_sect); p_slot->hpc_ops->green_led_off(p_slot); /* Done with exclusive hardware access */ - up(&p_slot->ctrl->crit_sect); + mutex_unlock(&p_slot->ctrl->crit_sect); } p_slot->state = STATIC_STATE; } @@ -768,25 +768,25 @@ static void interrupt_event_handler(struct controller *ctrl) switch (p_slot->state) { case BLINKINGOFF_STATE: /* Wait for exclusive access to hardware */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); p_slot->hpc_ops->green_led_on(p_slot); p_slot->hpc_ops->set_attention_status(p_slot, 0); /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); break; case BLINKINGON_STATE: /* Wait for exclusive access to hardware */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); p_slot->hpc_ops->green_led_off(p_slot); p_slot->hpc_ops->set_attention_status(p_slot, 0); /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); break; default: @@ -813,7 +813,7 @@ static void interrupt_event_handler(struct controller *ctrl) } /* Wait for exclusive access to hardware */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); /* blink green LED and turn off amber */ p_slot->hpc_ops->green_led_blink(p_slot); @@ -821,7 +821,7 @@ static void interrupt_event_handler(struct controller *ctrl) p_slot->hpc_ops->set_attention_status(p_slot, 0); /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); init_timer(&p_slot->task_event); p_slot->task_event.expires = jiffies + 5 * HZ; /* 5 second delay */ @@ -834,14 +834,14 @@ static void interrupt_event_handler(struct controller *ctrl) /***********POWER FAULT********************/ dbg("%s: power fault\n", __FUNCTION__); /* Wait for exclusive access to hardware */ - down(&ctrl->crit_sect); + mutex_lock(&ctrl->crit_sect); p_slot->hpc_ops->set_attention_status(p_slot, 1); p_slot->hpc_ops->green_led_off(p_slot); /* Done with exclusive hardware access */ - up(&ctrl->crit_sect); + mutex_unlock(&ctrl->crit_sect); } else { /* refresh notification */ if (p_slot) @@ -865,26 +865,26 @@ int shpchp_enable_slot (struct slot *p_slot) int rc; /* Check to see if (latch closed, card present, power off) */ - down(&p_slot->ctrl->crit_sect); + mutex_lock(&p_slot->ctrl->crit_sect); rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus); if (rc || !getstatus) { info("%s: no adapter on slot(%x)\n", __FUNCTION__, p_slot->number); - up(&p_slot->ctrl->crit_sect); + mutex_unlock(&p_slot->ctrl->crit_sect); return -ENODEV; } rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); if (rc || getstatus) { info("%s: latch open on slot(%x)\n", __FUNCTION__, p_slot->number); - up(&p_slot->ctrl->crit_sect); + mutex_unlock(&p_slot->ctrl->crit_sect); return -ENODEV; } rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus); if (rc || getstatus) { info("%s: already enabled on slot(%x)\n", __FUNCTION__, p_slot->number); - up(&p_slot->ctrl->crit_sect); + mutex_unlock(&p_slot->ctrl->crit_sect); return -ENODEV; } - up(&p_slot->ctrl->crit_sect); + mutex_unlock(&p_slot->ctrl->crit_sect); p_slot->is_a_board = 1; @@ -925,27 +925,27 @@ int shpchp_disable_slot (struct slot *p_slot) return -ENODEV; /* Check to see if (latch closed, card present, power on) */ - down(&p_slot->ctrl->crit_sect); + mutex_lock(&p_slot->ctrl->crit_sect); ret = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus); if (ret || !getstatus) { info("%s: no adapter on slot(%x)\n", __FUNCTION__, p_slot->number); - up(&p_slot->ctrl->crit_sect); + mutex_unlock(&p_slot->ctrl->crit_sect); return -ENODEV; } ret = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); if (ret || getstatus) { info("%s: latch open on slot(%x)\n", __FUNCTION__, p_slot->number); - up(&p_slot->ctrl->crit_sect); + mutex_unlock(&p_slot->ctrl->crit_sect); return -ENODEV; } ret = p_slot->hpc_ops->get_power_status(p_slot, &getstatus); if (ret || !getstatus) { info("%s: already disabled slot(%x)\n", __FUNCTION__, p_slot->number); - up(&p_slot->ctrl->crit_sect); + mutex_unlock(&p_slot->ctrl->crit_sect); return -ENODEV; } - up(&p_slot->ctrl->crit_sect); + mutex_unlock(&p_slot->ctrl->crit_sect); ret = remove_board(p_slot); update_slot_info(p_slot); diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c index b4226ff3a85..ae81427e42b 100644 --- a/drivers/pci/hotplug/shpchp_hpc.c +++ b/drivers/pci/hotplug/shpchp_hpc.c @@ -1454,7 +1454,7 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev) } dbg("%s: php_ctlr->creg %p\n", __FUNCTION__, php_ctlr->creg); - init_MUTEX(&ctrl->crit_sect); + mutex_init(&ctrl->crit_sect); /* Setup wait queue */ init_waitqueue_head(&ctrl->queue); |