diff options
Diffstat (limited to 'drivers/pci/hotplug/ibmphp_ebda.c')
| -rw-r--r-- | drivers/pci/hotplug/ibmphp_ebda.c | 405 |
1 files changed, 171 insertions, 234 deletions
diff --git a/drivers/pci/hotplug/ibmphp_ebda.c b/drivers/pci/hotplug/ibmphp_ebda.c index aea1187c73a..0f65ac55543 100644 --- a/drivers/pci/hotplug/ibmphp_ebda.c +++ b/drivers/pci/hotplug/ibmphp_ebda.c @@ -28,7 +28,6 @@ */ #include <linux/module.h> -#include <linux/sched.h> #include <linux/errno.h> #include <linux/mm.h> #include <linux/slab.h> @@ -72,13 +71,7 @@ static int ebda_rio_table (void); static struct ebda_hpc_list * __init alloc_ebda_hpc_list (void) { - struct ebda_hpc_list *list; - - list = kmalloc (sizeof (struct ebda_hpc_list), GFP_KERNEL); - if (!list) - return NULL; - memset (list, 0, sizeof (*list)); - return list; + return kzalloc(sizeof(struct ebda_hpc_list), GFP_KERNEL); } static struct controller *alloc_ebda_hpc (u32 slot_count, u32 bus_count) @@ -87,21 +80,18 @@ static struct controller *alloc_ebda_hpc (u32 slot_count, u32 bus_count) struct ebda_hpc_slot *slots; struct ebda_hpc_bus *buses; - controller = kmalloc (sizeof (struct controller), GFP_KERNEL); + controller = kzalloc(sizeof(struct controller), GFP_KERNEL); if (!controller) goto error; - memset (controller, 0, sizeof (*controller)); - slots = kmalloc (sizeof (struct ebda_hpc_slot) * slot_count, GFP_KERNEL); + slots = kcalloc(slot_count, sizeof(struct ebda_hpc_slot), GFP_KERNEL); if (!slots) goto error_contr; - memset (slots, 0, sizeof (*slots) * slot_count); controller->slots = slots; - buses = kmalloc (sizeof (struct ebda_hpc_bus) * bus_count, GFP_KERNEL); + buses = kcalloc(bus_count, sizeof(struct ebda_hpc_bus), GFP_KERNEL); if (!buses) goto error_slots; - memset (buses, 0, sizeof (*buses) * bus_count); controller->buses = buses; return controller; @@ -122,45 +112,31 @@ static void free_ebda_hpc (struct controller *controller) static struct ebda_rsrc_list * __init alloc_ebda_rsrc_list (void) { - struct ebda_rsrc_list *list; - - list = kmalloc (sizeof (struct ebda_rsrc_list), GFP_KERNEL); - if (!list) - return NULL; - memset (list, 0, sizeof (*list)); - return list; + return kzalloc(sizeof(struct ebda_rsrc_list), GFP_KERNEL); } static struct ebda_pci_rsrc *alloc_ebda_pci_rsrc (void) { - struct ebda_pci_rsrc *resource; - - resource = kmalloc (sizeof (struct ebda_pci_rsrc), GFP_KERNEL); - if (!resource) - return NULL; - memset (resource, 0, sizeof (*resource)); - return resource; + return kzalloc(sizeof(struct ebda_pci_rsrc), GFP_KERNEL); } static void __init print_bus_info (void) { struct bus_info *ptr; - struct list_head *ptr1; - - list_for_each (ptr1, &bus_info_head) { - ptr = list_entry (ptr1, struct bus_info, bus_info_list); - debug ("%s - slot_min = %x\n", __FUNCTION__, ptr->slot_min); - debug ("%s - slot_max = %x\n", __FUNCTION__, ptr->slot_max); - debug ("%s - slot_count = %x\n", __FUNCTION__, ptr->slot_count); - debug ("%s - bus# = %x\n", __FUNCTION__, ptr->busno); - debug ("%s - current_speed = %x\n", __FUNCTION__, ptr->current_speed); - debug ("%s - controller_id = %x\n", __FUNCTION__, ptr->controller_id); - - debug ("%s - slots_at_33_conv = %x\n", __FUNCTION__, ptr->slots_at_33_conv); - debug ("%s - slots_at_66_conv = %x\n", __FUNCTION__, ptr->slots_at_66_conv); - debug ("%s - slots_at_66_pcix = %x\n", __FUNCTION__, ptr->slots_at_66_pcix); - debug ("%s - slots_at_100_pcix = %x\n", __FUNCTION__, ptr->slots_at_100_pcix); - debug ("%s - slots_at_133_pcix = %x\n", __FUNCTION__, ptr->slots_at_133_pcix); + + list_for_each_entry(ptr, &bus_info_head, bus_info_list) { + debug ("%s - slot_min = %x\n", __func__, ptr->slot_min); + debug ("%s - slot_max = %x\n", __func__, ptr->slot_max); + debug ("%s - slot_count = %x\n", __func__, ptr->slot_count); + debug ("%s - bus# = %x\n", __func__, ptr->busno); + debug ("%s - current_speed = %x\n", __func__, ptr->current_speed); + debug ("%s - controller_id = %x\n", __func__, ptr->controller_id); + + debug ("%s - slots_at_33_conv = %x\n", __func__, ptr->slots_at_33_conv); + debug ("%s - slots_at_66_conv = %x\n", __func__, ptr->slots_at_66_conv); + debug ("%s - slots_at_66_pcix = %x\n", __func__, ptr->slots_at_66_pcix); + debug ("%s - slots_at_100_pcix = %x\n", __func__, ptr->slots_at_100_pcix); + debug ("%s - slots_at_133_pcix = %x\n", __func__, ptr->slots_at_133_pcix); } } @@ -168,16 +144,14 @@ static void __init print_bus_info (void) static void print_lo_info (void) { struct rio_detail *ptr; - struct list_head *ptr1; - debug ("print_lo_info ----\n"); - list_for_each (ptr1, &rio_lo_head) { - ptr = list_entry (ptr1, struct rio_detail, rio_detail_list); - debug ("%s - rio_node_id = %x\n", __FUNCTION__, ptr->rio_node_id); - debug ("%s - rio_type = %x\n", __FUNCTION__, ptr->rio_type); - debug ("%s - owner_id = %x\n", __FUNCTION__, ptr->owner_id); - debug ("%s - first_slot_num = %x\n", __FUNCTION__, ptr->first_slot_num); - debug ("%s - wpindex = %x\n", __FUNCTION__, ptr->wpindex); - debug ("%s - chassis_num = %x\n", __FUNCTION__, ptr->chassis_num); + debug ("print_lo_info ----\n"); + list_for_each_entry(ptr, &rio_lo_head, rio_detail_list) { + debug ("%s - rio_node_id = %x\n", __func__, ptr->rio_node_id); + debug ("%s - rio_type = %x\n", __func__, ptr->rio_type); + debug ("%s - owner_id = %x\n", __func__, ptr->owner_id); + debug ("%s - first_slot_num = %x\n", __func__, ptr->first_slot_num); + debug ("%s - wpindex = %x\n", __func__, ptr->wpindex); + debug ("%s - chassis_num = %x\n", __func__, ptr->chassis_num); } } @@ -185,16 +159,14 @@ static void print_lo_info (void) static void print_vg_info (void) { struct rio_detail *ptr; - struct list_head *ptr1; - debug ("%s ---\n", __FUNCTION__); - list_for_each (ptr1, &rio_vg_head) { - ptr = list_entry (ptr1, struct rio_detail, rio_detail_list); - debug ("%s - rio_node_id = %x\n", __FUNCTION__, ptr->rio_node_id); - debug ("%s - rio_type = %x\n", __FUNCTION__, ptr->rio_type); - debug ("%s - owner_id = %x\n", __FUNCTION__, ptr->owner_id); - debug ("%s - first_slot_num = %x\n", __FUNCTION__, ptr->first_slot_num); - debug ("%s - wpindex = %x\n", __FUNCTION__, ptr->wpindex); - debug ("%s - chassis_num = %x\n", __FUNCTION__, ptr->chassis_num); + debug ("%s ---\n", __func__); + list_for_each_entry(ptr, &rio_vg_head, rio_detail_list) { + debug ("%s - rio_node_id = %x\n", __func__, ptr->rio_node_id); + debug ("%s - rio_type = %x\n", __func__, ptr->rio_type); + debug ("%s - owner_id = %x\n", __func__, ptr->owner_id); + debug ("%s - first_slot_num = %x\n", __func__, ptr->first_slot_num); + debug ("%s - wpindex = %x\n", __func__, ptr->wpindex); + debug ("%s - chassis_num = %x\n", __func__, ptr->chassis_num); } } @@ -202,80 +174,70 @@ static void print_vg_info (void) static void __init print_ebda_pci_rsrc (void) { struct ebda_pci_rsrc *ptr; - struct list_head *ptr1; - list_for_each (ptr1, &ibmphp_ebda_pci_rsrc_head) { - ptr = list_entry (ptr1, struct ebda_pci_rsrc, ebda_pci_rsrc_list); - debug ("%s - rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n", - __FUNCTION__, ptr->rsrc_type ,ptr->bus_num, ptr->dev_fun,ptr->start_addr, ptr->end_addr); + list_for_each_entry(ptr, &ibmphp_ebda_pci_rsrc_head, ebda_pci_rsrc_list) { + debug ("%s - rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n", + __func__, ptr->rsrc_type ,ptr->bus_num, ptr->dev_fun,ptr->start_addr, ptr->end_addr); } } static void __init print_ibm_slot (void) { struct slot *ptr; - struct list_head *ptr1; - list_for_each (ptr1, &ibmphp_slot_head) { - ptr = list_entry (ptr1, struct slot, ibm_slot_list); - debug ("%s - slot_number: %x\n", __FUNCTION__, ptr->number); + list_for_each_entry(ptr, &ibmphp_slot_head, ibm_slot_list) { + debug ("%s - slot_number: %x\n", __func__, ptr->number); } } static void __init print_opt_vg (void) { struct opt_rio *ptr; - struct list_head *ptr1; - debug ("%s ---\n", __FUNCTION__); - list_for_each (ptr1, &opt_vg_head) { - ptr = list_entry (ptr1, struct opt_rio, opt_rio_list); - debug ("%s - rio_type %x\n", __FUNCTION__, ptr->rio_type); - debug ("%s - chassis_num: %x\n", __FUNCTION__, ptr->chassis_num); - debug ("%s - first_slot_num: %x\n", __FUNCTION__, ptr->first_slot_num); - debug ("%s - middle_num: %x\n", __FUNCTION__, ptr->middle_num); + debug ("%s ---\n", __func__); + list_for_each_entry(ptr, &opt_vg_head, opt_rio_list) { + debug ("%s - rio_type %x\n", __func__, ptr->rio_type); + debug ("%s - chassis_num: %x\n", __func__, ptr->chassis_num); + debug ("%s - first_slot_num: %x\n", __func__, ptr->first_slot_num); + debug ("%s - middle_num: %x\n", __func__, ptr->middle_num); } } static void __init print_ebda_hpc (void) { struct controller *hpc_ptr; - struct list_head *ptr1; u16 index; - list_for_each (ptr1, &ebda_hpc_head) { - - hpc_ptr = list_entry (ptr1, struct controller, ebda_hpc_list); - + list_for_each_entry(hpc_ptr, &ebda_hpc_head, ebda_hpc_list) { for (index = 0; index < hpc_ptr->slot_count; index++) { - debug ("%s - physical slot#: %x\n", __FUNCTION__, hpc_ptr->slots[index].slot_num); - debug ("%s - pci bus# of the slot: %x\n", __FUNCTION__, hpc_ptr->slots[index].slot_bus_num); - debug ("%s - index into ctlr addr: %x\n", __FUNCTION__, hpc_ptr->slots[index].ctl_index); - debug ("%s - cap of the slot: %x\n", __FUNCTION__, hpc_ptr->slots[index].slot_cap); + debug ("%s - physical slot#: %x\n", __func__, hpc_ptr->slots[index].slot_num); + debug ("%s - pci bus# of the slot: %x\n", __func__, hpc_ptr->slots[index].slot_bus_num); + debug ("%s - index into ctlr addr: %x\n", __func__, hpc_ptr->slots[index].ctl_index); + debug ("%s - cap of the slot: %x\n", __func__, hpc_ptr->slots[index].slot_cap); } for (index = 0; index < hpc_ptr->bus_count; index++) { - debug ("%s - bus# of each bus controlled by this ctlr: %x\n", __FUNCTION__, hpc_ptr->buses[index].bus_num); + debug ("%s - bus# of each bus controlled by this ctlr: %x\n", __func__, hpc_ptr->buses[index].bus_num); } - debug ("%s - type of hpc: %x\n", __FUNCTION__, hpc_ptr->ctlr_type); + debug ("%s - type of hpc: %x\n", __func__, hpc_ptr->ctlr_type); switch (hpc_ptr->ctlr_type) { case 1: - debug ("%s - bus: %x\n", __FUNCTION__, hpc_ptr->u.pci_ctlr.bus); - debug ("%s - dev_fun: %x\n", __FUNCTION__, hpc_ptr->u.pci_ctlr.dev_fun); - debug ("%s - irq: %x\n", __FUNCTION__, hpc_ptr->irq); + debug ("%s - bus: %x\n", __func__, hpc_ptr->u.pci_ctlr.bus); + debug ("%s - dev_fun: %x\n", __func__, hpc_ptr->u.pci_ctlr.dev_fun); + debug ("%s - irq: %x\n", __func__, hpc_ptr->irq); break; case 0: - debug ("%s - io_start: %x\n", __FUNCTION__, hpc_ptr->u.isa_ctlr.io_start); - debug ("%s - io_end: %x\n", __FUNCTION__, hpc_ptr->u.isa_ctlr.io_end); - debug ("%s - irq: %x\n", __FUNCTION__, hpc_ptr->irq); + debug ("%s - io_start: %x\n", __func__, hpc_ptr->u.isa_ctlr.io_start); + debug ("%s - io_end: %x\n", __func__, hpc_ptr->u.isa_ctlr.io_end); + debug ("%s - irq: %x\n", __func__, hpc_ptr->irq); break; case 2: case 4: - debug ("%s - wpegbbar: %lx\n", __FUNCTION__, hpc_ptr->u.wpeg_ctlr.wpegbbar); - debug ("%s - i2c_addr: %x\n", __FUNCTION__, hpc_ptr->u.wpeg_ctlr.i2c_addr); - debug ("%s - irq: %x\n", __FUNCTION__, hpc_ptr->irq); + debug ("%s - wpegbbar: %lx\n", __func__, hpc_ptr->u.wpeg_ctlr.wpegbbar); + debug ("%s - i2c_addr: %x\n", __func__, hpc_ptr->u.wpeg_ctlr.i2c_addr); + debug ("%s - irq: %x\n", __func__, hpc_ptr->irq); break; } } @@ -283,7 +245,7 @@ static void __init print_ebda_hpc (void) int __init ibmphp_access_ebda (void) { - u8 format, num_ctlrs, rio_complete, hs_complete; + u8 format, num_ctlrs, rio_complete, hs_complete, ebda_sz; u16 ebda_seg, num_entries, next_offset, offset, blk_id, sub_addr, re, rc_id, re_id, base; int rc = 0; @@ -297,14 +259,29 @@ int __init ibmphp_access_ebda (void) ebda_seg = readw (io_mem); iounmap (io_mem); debug ("returned ebda segment: %x\n", ebda_seg); - - io_mem = ioremap (ebda_seg<<4, 65000); + + io_mem = ioremap(ebda_seg<<4, 1); + if (!io_mem) + return -ENOMEM; + ebda_sz = readb(io_mem); + iounmap(io_mem); + debug("ebda size: %d(KiB)\n", ebda_sz); + if (ebda_sz == 0) + return -ENOMEM; + + io_mem = ioremap(ebda_seg<<4, (ebda_sz * 1024)); if (!io_mem ) return -ENOMEM; next_offset = 0x180; for (;;) { offset = next_offset; + + /* Make sure what we read is still in the mapped section */ + if (WARN(offset > (ebda_sz * 1024 - 4), + "ibmphp_ebda: next read is beyond ebda_sz\n")) + break; + next_offset = readw (io_mem + offset); /* offset of next blk */ offset += 2; @@ -333,7 +310,7 @@ int __init ibmphp_access_ebda (void) re = readw (io_mem + sub_addr); /* next sub blk */ sub_addr += 2; - rc_id = readw (io_mem + sub_addr); /* sub blk id */ + rc_id = readw (io_mem + sub_addr); /* sub blk id */ sub_addr += 2; if (rc_id != 0x5243) @@ -353,7 +330,7 @@ int __init ibmphp_access_ebda (void) debug ("info about hpc descriptor---\n"); debug ("hot blk format: %x\n", format); debug ("num of controller: %x\n", num_ctlrs); - debug ("offset of hpc data structure enteries: %x\n ", sub_addr); + debug ("offset of hpc data structure entries: %x\n ", sub_addr); sub_addr = base + re; /* re sub blk */ /* FIXME: rc is never used/checked */ @@ -382,7 +359,7 @@ int __init ibmphp_access_ebda (void) debug ("info about rsrc descriptor---\n"); debug ("format: %x\n", format); debug ("num of rsrc: %x\n", num_entries); - debug ("offset of rsrc data structure enteries: %x\n ", sub_addr); + debug ("offset of rsrc data structure entries: %x\n ", sub_addr); hs_complete = 1; } else { @@ -390,15 +367,16 @@ int __init ibmphp_access_ebda (void) debug ("now enter io table ---\n"); debug ("rio blk id: %x\n", blk_id); - rio_table_ptr = kmalloc (sizeof (struct rio_table_hdr), GFP_KERNEL); - if (!rio_table_ptr) - return -ENOMEM; - memset (rio_table_ptr, 0, sizeof (struct rio_table_hdr) ); + rio_table_ptr = kzalloc(sizeof(struct rio_table_hdr), GFP_KERNEL); + if (!rio_table_ptr) { + rc = -ENOMEM; + goto out; + } rio_table_ptr->ver_num = readb (io_mem + offset); rio_table_ptr->scal_count = readb (io_mem + offset + 1); rio_table_ptr->riodev_count = readb (io_mem + offset + 2); rio_table_ptr->offset = offset +3 ; - + debug("info about rio table hdr ---\n"); debug("ver_num: %x\nscal_count: %x\nriodev_count: %x\noffset of rio table: %x\n ", rio_table_ptr->ver_num, rio_table_ptr->scal_count, @@ -445,10 +423,9 @@ static int __init ebda_rio_table (void) // we do concern about rio details for (i = 0; i < rio_table_ptr->riodev_count; i++) { - rio_detail_ptr = kmalloc (sizeof (struct rio_detail), GFP_KERNEL); + rio_detail_ptr = kzalloc(sizeof(struct rio_detail), GFP_KERNEL); if (!rio_detail_ptr) return -ENOMEM; - memset (rio_detail_ptr, 0, sizeof (struct rio_detail)); rio_detail_ptr->rio_node_id = readb (io_mem + offset); rio_detail_ptr->bbar = readl (io_mem + offset + 1); rio_detail_ptr->rio_type = readb (io_mem + offset + 5); @@ -463,12 +440,12 @@ static int __init ebda_rio_table (void) rio_detail_ptr->chassis_num = readb (io_mem + offset + 14); // debug ("rio_node_id: %x\nbbar: %x\nrio_type: %x\nowner_id: %x\nport0_node: %x\nport0_port: %x\nport1_node: %x\nport1_port: %x\nfirst_slot_num: %x\nstatus: %x\n", rio_detail_ptr->rio_node_id, rio_detail_ptr->bbar, rio_detail_ptr->rio_type, rio_detail_ptr->owner_id, rio_detail_ptr->port0_node_connect, rio_detail_ptr->port0_port_connect, rio_detail_ptr->port1_node_connect, rio_detail_ptr->port1_port_connect, rio_detail_ptr->first_slot_num, rio_detail_ptr->status); //create linked list of chassis - if (rio_detail_ptr->rio_type == 4 || rio_detail_ptr->rio_type == 5) + if (rio_detail_ptr->rio_type == 4 || rio_detail_ptr->rio_type == 5) list_add (&rio_detail_ptr->rio_detail_list, &rio_vg_head); - //create linked list of expansion box - else if (rio_detail_ptr->rio_type == 6 || rio_detail_ptr->rio_type == 7) + //create linked list of expansion box + else if (rio_detail_ptr->rio_type == 6 || rio_detail_ptr->rio_type == 7) list_add (&rio_detail_ptr->rio_detail_list, &rio_lo_head); - else + else // not in my concern kfree (rio_detail_ptr); offset += 15; @@ -479,17 +456,15 @@ static int __init ebda_rio_table (void) } /* - * reorganizing linked list of chassis + * reorganizing linked list of chassis */ static struct opt_rio *search_opt_vg (u8 chassis_num) { struct opt_rio *ptr; - struct list_head *ptr1; - list_for_each (ptr1, &opt_vg_head) { - ptr = list_entry (ptr1, struct opt_rio, opt_rio_list); + list_for_each_entry(ptr, &opt_vg_head, opt_rio_list) { if (ptr->chassis_num == chassis_num) return ptr; - } + } return NULL; } @@ -497,42 +472,37 @@ static int __init combine_wpg_for_chassis (void) { struct opt_rio *opt_rio_ptr = NULL; struct rio_detail *rio_detail_ptr = NULL; - struct list_head *list_head_ptr = NULL; - - list_for_each (list_head_ptr, &rio_vg_head) { - rio_detail_ptr = list_entry (list_head_ptr, struct rio_detail, rio_detail_list); + + list_for_each_entry(rio_detail_ptr, &rio_vg_head, rio_detail_list) { opt_rio_ptr = search_opt_vg (rio_detail_ptr->chassis_num); if (!opt_rio_ptr) { - opt_rio_ptr = (struct opt_rio *) kmalloc (sizeof (struct opt_rio), GFP_KERNEL); + opt_rio_ptr = kzalloc(sizeof(struct opt_rio), GFP_KERNEL); if (!opt_rio_ptr) return -ENOMEM; - memset (opt_rio_ptr, 0, sizeof (struct opt_rio)); opt_rio_ptr->rio_type = rio_detail_ptr->rio_type; opt_rio_ptr->chassis_num = rio_detail_ptr->chassis_num; opt_rio_ptr->first_slot_num = rio_detail_ptr->first_slot_num; opt_rio_ptr->middle_num = rio_detail_ptr->first_slot_num; list_add (&opt_rio_ptr->opt_rio_list, &opt_vg_head); - } else { + } else { opt_rio_ptr->first_slot_num = min (opt_rio_ptr->first_slot_num, rio_detail_ptr->first_slot_num); opt_rio_ptr->middle_num = max (opt_rio_ptr->middle_num, rio_detail_ptr->first_slot_num); - } + } } print_opt_vg (); - return 0; -} + return 0; +} /* - * reorgnizing linked list of expansion box + * reorganizing linked list of expansion box */ static struct opt_rio_lo *search_opt_lo (u8 chassis_num) { struct opt_rio_lo *ptr; - struct list_head *ptr1; - list_for_each (ptr1, &opt_lo_head) { - ptr = list_entry (ptr1, struct opt_rio_lo, opt_rio_lo_list); + list_for_each_entry(ptr, &opt_lo_head, opt_rio_lo_list) { if (ptr->chassis_num == chassis_num) return ptr; - } + } return NULL; } @@ -540,56 +510,50 @@ static int combine_wpg_for_expansion (void) { struct opt_rio_lo *opt_rio_lo_ptr = NULL; struct rio_detail *rio_detail_ptr = NULL; - struct list_head *list_head_ptr = NULL; - - list_for_each (list_head_ptr, &rio_lo_head) { - rio_detail_ptr = list_entry (list_head_ptr, struct rio_detail, rio_detail_list); + + list_for_each_entry(rio_detail_ptr, &rio_lo_head, rio_detail_list) { opt_rio_lo_ptr = search_opt_lo (rio_detail_ptr->chassis_num); if (!opt_rio_lo_ptr) { - opt_rio_lo_ptr = (struct opt_rio_lo *) kmalloc (sizeof (struct opt_rio_lo), GFP_KERNEL); + opt_rio_lo_ptr = kzalloc(sizeof(struct opt_rio_lo), GFP_KERNEL); if (!opt_rio_lo_ptr) return -ENOMEM; - memset (opt_rio_lo_ptr, 0, sizeof (struct opt_rio_lo)); opt_rio_lo_ptr->rio_type = rio_detail_ptr->rio_type; opt_rio_lo_ptr->chassis_num = rio_detail_ptr->chassis_num; opt_rio_lo_ptr->first_slot_num = rio_detail_ptr->first_slot_num; opt_rio_lo_ptr->middle_num = rio_detail_ptr->first_slot_num; opt_rio_lo_ptr->pack_count = 1; - + list_add (&opt_rio_lo_ptr->opt_rio_lo_list, &opt_lo_head); - } else { + } else { opt_rio_lo_ptr->first_slot_num = min (opt_rio_lo_ptr->first_slot_num, rio_detail_ptr->first_slot_num); opt_rio_lo_ptr->middle_num = max (opt_rio_lo_ptr->middle_num, rio_detail_ptr->first_slot_num); opt_rio_lo_ptr->pack_count = 2; - } + } } - return 0; + return 0; } - + /* Since we don't know the max slot number per each chassis, hence go * through the list of all chassis to find out the range - * Arguments: slot_num, 1st slot number of the chassis we think we are on, - * var (0 = chassis, 1 = expansion box) + * Arguments: slot_num, 1st slot number of the chassis we think we are on, + * var (0 = chassis, 1 = expansion box) */ static int first_slot_num (u8 slot_num, u8 first_slot, u8 var) { struct opt_rio *opt_vg_ptr = NULL; struct opt_rio_lo *opt_lo_ptr = NULL; - struct list_head *ptr = NULL; int rc = 0; if (!var) { - list_for_each (ptr, &opt_vg_head) { - opt_vg_ptr = list_entry (ptr, struct opt_rio, opt_rio_list); - if ((first_slot < opt_vg_ptr->first_slot_num) && (slot_num >= opt_vg_ptr->first_slot_num)) { + list_for_each_entry(opt_vg_ptr, &opt_vg_head, opt_rio_list) { + if ((first_slot < opt_vg_ptr->first_slot_num) && (slot_num >= opt_vg_ptr->first_slot_num)) { rc = -ENODEV; break; } } } else { - list_for_each (ptr, &opt_lo_head) { - opt_lo_ptr = list_entry (ptr, struct opt_rio_lo, opt_rio_lo_list); + list_for_each_entry(opt_lo_ptr, &opt_lo_head, opt_rio_lo_list) { if ((first_slot < opt_lo_ptr->first_slot_num) && (slot_num >= opt_lo_ptr->first_slot_num)) { rc = -ENODEV; break; @@ -599,29 +563,25 @@ static int first_slot_num (u8 slot_num, u8 first_slot, u8 var) return rc; } -static struct opt_rio_lo * find_rxe_num (u8 slot_num) +static struct opt_rio_lo *find_rxe_num (u8 slot_num) { struct opt_rio_lo *opt_lo_ptr; - struct list_head *ptr; - list_for_each (ptr, &opt_lo_head) { - opt_lo_ptr = list_entry (ptr, struct opt_rio_lo, opt_rio_lo_list); + list_for_each_entry(opt_lo_ptr, &opt_lo_head, opt_rio_lo_list) { //check to see if this slot_num belongs to expansion box - if ((slot_num >= opt_lo_ptr->first_slot_num) && (!first_slot_num (slot_num, opt_lo_ptr->first_slot_num, 1))) + if ((slot_num >= opt_lo_ptr->first_slot_num) && (!first_slot_num (slot_num, opt_lo_ptr->first_slot_num, 1))) return opt_lo_ptr; } return NULL; } -static struct opt_rio * find_chassis_num (u8 slot_num) +static struct opt_rio *find_chassis_num (u8 slot_num) { struct opt_rio *opt_vg_ptr; - struct list_head *ptr; - list_for_each (ptr, &opt_vg_head) { - opt_vg_ptr = list_entry (ptr, struct opt_rio, opt_rio_list); - //check to see if this slot_num belongs to chassis - if ((slot_num >= opt_vg_ptr->first_slot_num) && (!first_slot_num (slot_num, opt_vg_ptr->first_slot_num, 0))) + list_for_each_entry(opt_vg_ptr, &opt_vg_head, opt_rio_list) { + //check to see if this slot_num belongs to chassis + if ((slot_num >= opt_vg_ptr->first_slot_num) && (!first_slot_num (slot_num, opt_vg_ptr->first_slot_num, 0))) return opt_vg_ptr; } return NULL; @@ -633,24 +593,25 @@ static struct opt_rio * find_chassis_num (u8 slot_num) static u8 calculate_first_slot (u8 slot_num) { u8 first_slot = 1; - struct list_head * list; - struct slot * slot_cur; - - list_for_each (list, &ibmphp_slot_head) { - slot_cur = list_entry (list, struct slot, ibm_slot_list); + struct slot *slot_cur; + + list_for_each_entry(slot_cur, &ibmphp_slot_head, ibm_slot_list) { if (slot_cur->ctrl) { - if ((slot_cur->ctrl->ctlr_type != 4) && (slot_cur->ctrl->ending_slot_num > first_slot) && (slot_num > slot_cur->ctrl->ending_slot_num)) + if ((slot_cur->ctrl->ctlr_type != 4) && (slot_cur->ctrl->ending_slot_num > first_slot) && (slot_num > slot_cur->ctrl->ending_slot_num)) first_slot = slot_cur->ctrl->ending_slot_num; } - } + } return first_slot + 1; } -static char *create_file_name (struct slot * slot_cur) + +#define SLOT_NAME_SIZE 30 + +static char *create_file_name (struct slot *slot_cur) { struct opt_rio *opt_vg_ptr = NULL; struct opt_rio_lo *opt_lo_ptr = NULL; - static char str[30]; + static char str[SLOT_NAME_SIZE]; int which = 0; /* rxe = 1, chassis = 0 */ u8 number = 1; /* either chassis or rxe # */ u8 first_slot = 1; @@ -661,11 +622,11 @@ static char *create_file_name (struct slot * slot_cur) err ("Structure passed is empty\n"); return NULL; } - + slot_num = slot_cur->number; memset (str, 0, sizeof(str)); - + if (rio_table_ptr) { if (rio_table_ptr->ver_num == 3) { opt_vg_ptr = find_chassis_num (slot_num); @@ -699,7 +660,7 @@ static char *create_file_name (struct slot * slot_cur) /* if both NULL and we DO have correct RIO table in BIOS */ return NULL; } - } + } if (!flag) { if (slot_cur->ctrl->ctlr_type == 4) { first_slot = calculate_first_slot (slot_num); @@ -762,7 +723,6 @@ static void release_slot(struct hotplug_slot *hotplug_slot) slot = hotplug_slot->private; kfree(slot->hotplug_slot->info); - kfree(slot->hotplug_slot->name); kfree(slot->hotplug_slot); slot->ctrl = NULL; slot->bus_on = NULL; @@ -793,7 +753,7 @@ static int __init ebda_rsrc_controller (void) struct bus_info *bus_info_ptr1, *bus_info_ptr2; int rc; struct slot *tmp_slot; - struct list_head *list; + char name[SLOT_NAME_SIZE]; addr = hpc_list_ptr->phys_addr; for (ctlr = 0; ctlr < hpc_list_ptr->num_ctlrs; ctlr++) { @@ -824,7 +784,7 @@ static int __init ebda_rsrc_controller (void) hpc_ptr->ctlr_relative_id = ctlr; hpc_ptr->slot_count = slot_num; hpc_ptr->bus_count = bus_num; - debug ("now enter ctlr data struture ---\n"); + debug ("now enter ctlr data structure ---\n"); debug ("ctlr id: %x\n", ctlr_id); debug ("ctlr_relative_id: %x\n", hpc_ptr->ctlr_relative_id); debug ("count of slots controlled by this ctlr: %x\n", slot_num); @@ -838,16 +798,15 @@ static int __init ebda_rsrc_controller (void) slot_ptr->ctl_index = readb (io_mem + addr_slot + 2*slot_num); slot_ptr->slot_cap = readb (io_mem + addr_slot + 3*slot_num); - // create bus_info lined list --- if only one slot per bus: slot_min = slot_max + // create bus_info lined list --- if only one slot per bus: slot_min = slot_max bus_info_ptr2 = ibmphp_find_same_bus_num (slot_ptr->slot_bus_num); if (!bus_info_ptr2) { - bus_info_ptr1 = (struct bus_info *) kmalloc (sizeof (struct bus_info), GFP_KERNEL); + bus_info_ptr1 = kzalloc(sizeof(struct bus_info), GFP_KERNEL); if (!bus_info_ptr1) { rc = -ENOMEM; goto error_no_hp_slot; } - memset (bus_info_ptr1, 0, sizeof (struct bus_info)); bus_info_ptr1->slot_min = slot_ptr->slot_num; bus_info_ptr1->slot_max = slot_ptr->slot_num; bus_info_ptr1->slot_count += 1; @@ -855,9 +814,9 @@ static int __init ebda_rsrc_controller (void) bus_info_ptr1->index = bus_index++; bus_info_ptr1->current_speed = 0xff; bus_info_ptr1->current_bus_mode = 0xff; - + bus_info_ptr1->controller_id = hpc_ptr->ctlr_id; - + list_add_tail (&bus_info_ptr1->bus_info_list, &bus_info_head); } else { @@ -892,7 +851,7 @@ static int __init ebda_rsrc_controller (void) bus_info_ptr2->slots_at_66_conv = bus_ptr->slots_at_66_conv; bus_info_ptr2->slots_at_66_pcix = bus_ptr->slots_at_66_pcix; bus_info_ptr2->slots_at_100_pcix = bus_ptr->slots_at_100_pcix; - bus_info_ptr2->slots_at_133_pcix = bus_ptr->slots_at_133_pcix; + bus_info_ptr2->slots_at_133_pcix = bus_ptr->slots_at_133_pcix; } bus_ptr++; } @@ -905,7 +864,7 @@ static int __init ebda_rsrc_controller (void) hpc_ptr->u.pci_ctlr.dev_fun = readb (io_mem + addr + 1); hpc_ptr->irq = readb (io_mem + addr + 2); addr += 3; - debug ("ctrl bus = %x, ctlr devfun = %x, irq = %x\n", + debug ("ctrl bus = %x, ctlr devfun = %x, irq = %x\n", hpc_ptr->u.pci_ctlr.bus, hpc_ptr->u.pci_ctlr.dev_fun, hpc_ptr->irq); break; @@ -946,34 +905,25 @@ static int __init ebda_rsrc_controller (void) // register slots with hpc core as well as create linked list of ibm slot for (index = 0; index < hpc_ptr->slot_count; index++) { - hp_slot_ptr = kmalloc(sizeof(*hp_slot_ptr), GFP_KERNEL); + hp_slot_ptr = kzalloc(sizeof(*hp_slot_ptr), GFP_KERNEL); if (!hp_slot_ptr) { rc = -ENOMEM; goto error_no_hp_slot; } - memset(hp_slot_ptr, 0, sizeof(*hp_slot_ptr)); - hp_slot_ptr->info = kmalloc (sizeof(struct hotplug_slot_info), GFP_KERNEL); + hp_slot_ptr->info = kzalloc(sizeof(struct hotplug_slot_info), GFP_KERNEL); if (!hp_slot_ptr->info) { rc = -ENOMEM; goto error_no_hp_info; } - memset(hp_slot_ptr->info, 0, sizeof(struct hotplug_slot_info)); - hp_slot_ptr->name = kmalloc(30, GFP_KERNEL); - if (!hp_slot_ptr->name) { - rc = -ENOMEM; - goto error_no_hp_name; - } - - tmp_slot = kmalloc(sizeof(*tmp_slot), GFP_KERNEL); + tmp_slot = kzalloc(sizeof(*tmp_slot), GFP_KERNEL); if (!tmp_slot) { rc = -ENOMEM; goto error_no_slot; } - memset(tmp_slot, 0, sizeof(*tmp_slot)); - tmp_slot->flag = TRUE; + tmp_slot->flag = 1; tmp_slot->capabilities = hpc_ptr->slots[index].slot_cap; if ((hpc_ptr->slots[index].slot_cap & EBDA_SLOT_133_MAX) == EBDA_SLOT_133_MAX) @@ -982,7 +932,7 @@ static int __init ebda_rsrc_controller (void) tmp_slot->supported_speed = 2; else if ((hpc_ptr->slots[index].slot_cap & EBDA_SLOT_66_MAX) == EBDA_SLOT_66_MAX) tmp_slot->supported_speed = 1; - + if ((hpc_ptr->slots[index].slot_cap & EBDA_SLOT_PCIX_CAP) == EBDA_SLOT_PCIX_CAP) tmp_slot->supported_bus_mode = 1; else @@ -993,6 +943,7 @@ static int __init ebda_rsrc_controller (void) bus_info_ptr1 = ibmphp_find_same_bus_num (hpc_ptr->slots[index].slot_bus_num); if (!bus_info_ptr1) { + kfree(tmp_slot); rc = -ENODEV; goto error; } @@ -1026,11 +977,10 @@ static int __init ebda_rsrc_controller (void) } /* each hpc */ - list_for_each (list, &ibmphp_slot_head) { - tmp_slot = list_entry (list, struct slot, ibm_slot_list); - - snprintf (tmp_slot->hotplug_slot->name, 30, "%s", create_file_name (tmp_slot)); - pci_hp_register (tmp_slot->hotplug_slot); + list_for_each_entry(tmp_slot, &ibmphp_slot_head, ibm_slot_list) { + snprintf(name, SLOT_NAME_SIZE, "%s", create_file_name(tmp_slot)); + pci_hp_register(tmp_slot->hotplug_slot, + pci_find_bus(0, tmp_slot->bus), tmp_slot->device, name); } print_ebda_hpc (); @@ -1040,8 +990,6 @@ static int __init ebda_rsrc_controller (void) error: kfree (hp_slot_ptr->private); error_no_slot: - kfree (hp_slot_ptr->name); -error_no_hp_name: kfree (hp_slot_ptr->info); error_no_hp_info: kfree (hp_slot_ptr); @@ -1052,7 +1000,7 @@ error_no_hpc: return rc; } -/* +/* * map info (bus, devfun, start addr, end addr..) of i/o, memory, * pfm from the physical addr to a list of resource. */ @@ -1109,7 +1057,7 @@ static int __init ebda_rsrc_rsrc (void) addr += 10; debug ("rsrc from mem or pfm ---\n"); - debug ("rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n", + debug ("rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n", rsrc_ptr->rsrc_type, rsrc_ptr->bus_num, rsrc_ptr->dev_fun, rsrc_ptr->start_addr, rsrc_ptr->end_addr); list_add (&rsrc_ptr->ebda_pci_rsrc_list, &ibmphp_ebda_pci_rsrc_head); @@ -1129,10 +1077,8 @@ u16 ibmphp_get_total_controllers (void) struct slot *ibmphp_get_slot_from_physical_num (u8 physical_num) { struct slot *slot; - struct list_head *list; - list_for_each (list, &ibmphp_slot_head) { - slot = list_entry (list, struct slot, ibm_slot_list); + list_for_each_entry(slot, &ibmphp_slot_head, ibm_slot_list) { if (slot->number == physical_num) return slot; } @@ -1148,11 +1094,9 @@ struct slot *ibmphp_get_slot_from_physical_num (u8 physical_num) struct bus_info *ibmphp_find_same_bus_num (u32 num) { struct bus_info *ptr; - struct list_head *ptr1; - list_for_each (ptr1, &bus_info_head) { - ptr = list_entry (ptr1, struct bus_info, bus_info_list); - if (ptr->busno == num) + list_for_each_entry(ptr, &bus_info_head, bus_info_list) { + if (ptr->busno == num) return ptr; } return NULL; @@ -1164,11 +1108,9 @@ struct bus_info *ibmphp_find_same_bus_num (u32 num) int ibmphp_get_bus_index (u8 num) { struct bus_info *ptr; - struct list_head *ptr1; - list_for_each (ptr1, &bus_info_head) { - ptr = list_entry (ptr1, struct bus_info, bus_info_list); - if (ptr->busno == num) + list_for_each_entry(ptr, &bus_info_head, bus_info_list) { + if (ptr->busno == num) return ptr->index; } return -ENODEV; @@ -1226,7 +1168,7 @@ static struct pci_device_id id_table[] = { .subdevice = HPC_SUBSYSTEM_ID, .class = ((PCI_CLASS_SYSTEM_PCI_HOTPLUG << 8) | 0x00), }, {} -}; +}; MODULE_DEVICE_TABLE(pci, id_table); @@ -1240,11 +1182,9 @@ static struct pci_driver ibmphp_driver = { int ibmphp_register_pci (void) { struct controller *ctrl; - struct list_head *tmp; int rc = 0; - list_for_each (tmp, &ebda_hpc_head) { - ctrl = list_entry (tmp, struct controller, ebda_hpc_list); + list_for_each_entry(ctrl, &ebda_hpc_head, ebda_hpc_list) { if (ctrl->ctlr_type == 1) { rc = pci_register_driver(&ibmphp_driver); break; @@ -1252,15 +1192,13 @@ int ibmphp_register_pci (void) } return rc; } -static int ibmphp_probe (struct pci_dev * dev, const struct pci_device_id *ids) +static int ibmphp_probe (struct pci_dev *dev, const struct pci_device_id *ids) { struct controller *ctrl; - struct list_head *tmp; debug ("inside ibmphp_probe\n"); - - list_for_each (tmp, &ebda_hpc_head) { - ctrl = list_entry (tmp, struct controller, ebda_hpc_list); + + list_for_each_entry(ctrl, &ebda_hpc_head, ebda_hpc_list) { if (ctrl->ctlr_type == 1) { if ((dev->devfn == ctrl->u.pci_ctlr.dev_fun) && (dev->bus->number == ctrl->u.pci_ctlr.bus)) { ctrl->ctrl_dev = dev; @@ -1272,4 +1210,3 @@ static int ibmphp_probe (struct pci_dev * dev, const struct pci_device_id *ids) } return -ENODEV; } - |