From 861fefbf550d41e7a4f44584f3ec35977fa08bf1 Mon Sep 17 00:00:00 2001 From: Alex Chiang Date: Tue, 31 Mar 2009 09:23:11 -0600 Subject: PCI Hotplug: cpqphp: stray whitespace cleanups Clean up all stray whitespace issues, such as trailing whitespace, spaces before tabs, etc. and whatever else vim's c_space_errors highlights in red. Signed-off-by: Alex Chiang Signed-off-by: Jesse Barnes --- drivers/pci/hotplug/cpqphp.h | 58 ++++++++++++++++++++++---------------------- 1 file changed, 29 insertions(+), 29 deletions(-) (limited to 'drivers/pci/hotplug/cpqphp.h') diff --git a/drivers/pci/hotplug/cpqphp.h b/drivers/pci/hotplug/cpqphp.h index afaf8f69f73..b627dfd7450 100644 --- a/drivers/pci/hotplug/cpqphp.h +++ b/drivers/pci/hotplug/cpqphp.h @@ -150,25 +150,25 @@ struct ctrl_reg { /* offset */ /* offsets to the controller registers based on the above structure layout */ enum ctrl_offsets { - SLOT_RST = offsetof(struct ctrl_reg, slot_RST), + SLOT_RST = offsetof(struct ctrl_reg, slot_RST), SLOT_ENABLE = offsetof(struct ctrl_reg, slot_enable), MISC = offsetof(struct ctrl_reg, misc), LED_CONTROL = offsetof(struct ctrl_reg, led_control), INT_INPUT_CLEAR = offsetof(struct ctrl_reg, int_input_clear), - INT_MASK = offsetof(struct ctrl_reg, int_mask), - CTRL_RESERVED0 = offsetof(struct ctrl_reg, reserved0), + INT_MASK = offsetof(struct ctrl_reg, int_mask), + CTRL_RESERVED0 = offsetof(struct ctrl_reg, reserved0), CTRL_RESERVED1 = offsetof(struct ctrl_reg, reserved1), CTRL_RESERVED2 = offsetof(struct ctrl_reg, reserved1), - GEN_OUTPUT_AB = offsetof(struct ctrl_reg, gen_output_AB), - NON_INT_INPUT = offsetof(struct ctrl_reg, non_int_input), + GEN_OUTPUT_AB = offsetof(struct ctrl_reg, gen_output_AB), + NON_INT_INPUT = offsetof(struct ctrl_reg, non_int_input), CTRL_RESERVED3 = offsetof(struct ctrl_reg, reserved3), CTRL_RESERVED4 = offsetof(struct ctrl_reg, reserved4), CTRL_RESERVED5 = offsetof(struct ctrl_reg, reserved5), CTRL_RESERVED6 = offsetof(struct ctrl_reg, reserved6), CTRL_RESERVED7 = offsetof(struct ctrl_reg, reserved7), CTRL_RESERVED8 = offsetof(struct ctrl_reg, reserved8), - SLOT_MASK = offsetof(struct ctrl_reg, slot_mask), - CTRL_RESERVED9 = offsetof(struct ctrl_reg, reserved9), + SLOT_MASK = offsetof(struct ctrl_reg, slot_mask), + CTRL_RESERVED9 = offsetof(struct ctrl_reg, reserved9), CTRL_RESERVED10 = offsetof(struct ctrl_reg, reserved10), CTRL_RESERVED11 = offsetof(struct ctrl_reg, reserved11), SLOT_SERR = offsetof(struct ctrl_reg, slot_SERR), @@ -220,15 +220,15 @@ struct slot_rt { /* offsets to the hotplug slot resource table registers based on the above structure layout */ enum slot_rt_offsets { DEV_FUNC = offsetof(struct slot_rt, dev_func), - PRIMARY_BUS = offsetof(struct slot_rt, primary_bus), - SECONDARY_BUS = offsetof(struct slot_rt, secondary_bus), - MAX_BUS = offsetof(struct slot_rt, max_bus), - IO_BASE = offsetof(struct slot_rt, io_base), - IO_LENGTH = offsetof(struct slot_rt, io_length), - MEM_BASE = offsetof(struct slot_rt, mem_base), - MEM_LENGTH = offsetof(struct slot_rt, mem_length), - PRE_MEM_BASE = offsetof(struct slot_rt, pre_mem_base), - PRE_MEM_LENGTH = offsetof(struct slot_rt, pre_mem_length), + PRIMARY_BUS = offsetof(struct slot_rt, primary_bus), + SECONDARY_BUS = offsetof(struct slot_rt, secondary_bus), + MAX_BUS = offsetof(struct slot_rt, max_bus), + IO_BASE = offsetof(struct slot_rt, io_base), + IO_LENGTH = offsetof(struct slot_rt, io_length), + MEM_BASE = offsetof(struct slot_rt, mem_base), + MEM_LENGTH = offsetof(struct slot_rt, mem_length), + PRE_MEM_BASE = offsetof(struct slot_rt, pre_mem_base), + PRE_MEM_LENGTH = offsetof(struct slot_rt, pre_mem_length), }; struct pci_func { @@ -471,7 +471,7 @@ static inline void return_resource(struct pci_resource **head, struct pci_resour static inline void set_SOGO(struct controller *ctrl) { u16 misc; - + misc = readw(ctrl->hpc_reg + MISC); misc = (misc | 0x0001) & 0xFFFB; writew(misc, ctrl->hpc_reg + MISC); @@ -481,7 +481,7 @@ static inline void set_SOGO(struct controller *ctrl) static inline void amber_LED_on(struct controller *ctrl, u8 slot) { u32 led_control; - + led_control = readl(ctrl->hpc_reg + LED_CONTROL); led_control |= (0x01010000L << slot); writel(led_control, ctrl->hpc_reg + LED_CONTROL); @@ -491,7 +491,7 @@ static inline void amber_LED_on(struct controller *ctrl, u8 slot) static inline void amber_LED_off(struct controller *ctrl, u8 slot) { u32 led_control; - + led_control = readl(ctrl->hpc_reg + LED_CONTROL); led_control &= ~(0x01010000L << slot); writel(led_control, ctrl->hpc_reg + LED_CONTROL); @@ -504,7 +504,7 @@ static inline int read_amber_LED(struct controller *ctrl, u8 slot) led_control = readl(ctrl->hpc_reg + LED_CONTROL); led_control &= (0x01010000L << slot); - + return led_control ? 1 : 0; } @@ -512,7 +512,7 @@ static inline int read_amber_LED(struct controller *ctrl, u8 slot) static inline void green_LED_on(struct controller *ctrl, u8 slot) { u32 led_control; - + led_control = readl(ctrl->hpc_reg + LED_CONTROL); led_control |= 0x0101L << slot; writel(led_control, ctrl->hpc_reg + LED_CONTROL); @@ -521,7 +521,7 @@ static inline void green_LED_on(struct controller *ctrl, u8 slot) static inline void green_LED_off(struct controller *ctrl, u8 slot) { u32 led_control; - + led_control = readl(ctrl->hpc_reg + LED_CONTROL); led_control &= ~(0x0101L << slot); writel(led_control, ctrl->hpc_reg + LED_CONTROL); @@ -531,7 +531,7 @@ static inline void green_LED_off(struct controller *ctrl, u8 slot) static inline void green_LED_blink(struct controller *ctrl, u8 slot) { u32 led_control; - + led_control = readl(ctrl->hpc_reg + LED_CONTROL); led_control &= ~(0x0101L << slot); led_control |= (0x0001L << slot); @@ -586,11 +586,11 @@ static inline u8 read_slot_enable(struct controller *ctrl) static inline u8 get_controller_speed(struct controller *ctrl) { u8 curr_freq; - u16 misc; - + u16 misc; + if (ctrl->pcix_support) { curr_freq = readb(ctrl->hpc_reg + NEXT_CURR_FREQ); - if ((curr_freq & 0xB0) == 0xB0) + if ((curr_freq & 0xB0) == 0xB0) return PCI_SPEED_133MHz_PCIX; if ((curr_freq & 0xA0) == 0xA0) return PCI_SPEED_100MHz_PCIX; @@ -602,10 +602,10 @@ static inline u8 get_controller_speed(struct controller *ctrl) return PCI_SPEED_33MHz; } - misc = readw(ctrl->hpc_reg + MISC); - return (misc & 0x0800) ? PCI_SPEED_66MHz : PCI_SPEED_33MHz; + misc = readw(ctrl->hpc_reg + MISC); + return (misc & 0x0800) ? PCI_SPEED_66MHz : PCI_SPEED_33MHz; } - + /* * get_adapter_speed - find the max supported frequency/mode of adapter. -- cgit v1.2.3-70-g09d2 From 427438c61b0083a60bb953cb36cfdc5841f0bb03 Mon Sep 17 00:00:00 2001 From: Alex Chiang Date: Tue, 31 Mar 2009 09:23:16 -0600 Subject: PCI Hotplug: cpqphp: fix comment style Fix up comments from C++ to C-style, wrapping if necessary, etc. Signed-off-by: Alex Chiang Signed-off-by: Jesse Barnes --- drivers/pci/hotplug/cpqphp.h | 22 +-- drivers/pci/hotplug/cpqphp_core.c | 157 ++++++++++--------- drivers/pci/hotplug/cpqphp_ctrl.c | 131 +++++++++------- drivers/pci/hotplug/cpqphp_nvram.c | 79 +++++----- drivers/pci/hotplug/cpqphp_pci.c | 313 ++++++++++++++++++++----------------- 5 files changed, 387 insertions(+), 315 deletions(-) (limited to 'drivers/pci/hotplug/cpqphp.h') diff --git a/drivers/pci/hotplug/cpqphp.h b/drivers/pci/hotplug/cpqphp.h index b627dfd7450..e15d657368f 100644 --- a/drivers/pci/hotplug/cpqphp.h +++ b/drivers/pci/hotplug/cpqphp.h @@ -190,7 +190,9 @@ struct hrt { u32 reserved2; } __attribute__ ((packed)); -/* offsets to the hotplug resource table registers based on the above structure layout */ +/* offsets to the hotplug resource table registers based on the above + * structure layout + */ enum hrt_offsets { SIG0 = offsetof(struct hrt, sig0), SIG1 = offsetof(struct hrt, sig1), @@ -217,7 +219,9 @@ struct slot_rt { u16 pre_mem_length; } __attribute__ ((packed)); -/* offsets to the hotplug slot resource table registers based on the above structure layout */ +/* offsets to the hotplug slot resource table registers based on the above + * structure layout + */ enum slot_rt_offsets { DEV_FUNC = offsetof(struct slot_rt, dev_func), PRIMARY_BUS = offsetof(struct slot_rt, primary_bus), @@ -286,8 +290,8 @@ struct event_info { struct controller { struct controller *next; u32 ctrl_int_comp; - struct mutex crit_sect; /* critical section mutex */ - void __iomem *hpc_reg; /* cookie for our pci controller location */ + 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; struct pci_resource *io_head; @@ -299,7 +303,7 @@ struct controller { u8 next_event; u8 interrupt; u8 cfgspc_irq; - u8 bus; /* bus number for the pci hotplug controller */ + u8 bus; /* bus number for the pci hotplug controller */ u8 rev; u8 slot_device_offset; u8 first_slot; @@ -458,7 +462,6 @@ static inline char *slot_name(struct slot *slot) * return_resource * * Puts node back in the resource list pointed to by head - * */ static inline void return_resource(struct pci_resource **head, struct pci_resource *node) { @@ -575,13 +578,12 @@ static inline u8 read_slot_enable(struct controller *ctrl) } -/* +/** * get_controller_speed - find the current frequency/mode of controller. * * @ctrl: controller to get frequency/mode for. * * Returns controller speed. - * */ static inline u8 get_controller_speed(struct controller *ctrl) { @@ -607,14 +609,13 @@ static inline u8 get_controller_speed(struct controller *ctrl) } -/* +/** * get_adapter_speed - find the max supported frequency/mode of adapter. * * @ctrl: hotplug controller. * @hp_slot: hotplug slot where adapter is installed. * * Returns adapter speed. - * */ static inline u8 get_adapter_speed(struct controller *ctrl, u8 hp_slot) { @@ -719,4 +720,3 @@ static inline int wait_for_ctrl_irq(struct controller *ctrl) } #endif - diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c index 55eae4c233c..91dc95850cc 100644 --- a/drivers/pci/hotplug/cpqphp_core.c +++ b/drivers/pci/hotplug/cpqphp_core.c @@ -26,7 +26,6 @@ * * Jan 12, 2003 - Added 66/100/133MHz PCI-X support, * Torben Mathiasen - * */ #include @@ -171,7 +170,7 @@ static int init_SERR(struct controller * ctrl) tempdword = ctrl->first_slot; number_of_slots = readb(ctrl->hpc_reg + SLOT_MASK) & 0x0F; - // Loop through slots + /* Loop through slots */ while (number_of_slots) { physical_slot = tempdword; writeb(0, ctrl->hpc_reg + SLOT_SERR); @@ -200,7 +199,7 @@ static int pci_print_IRQ_route (void) len = (routing_table->size - sizeof(struct irq_routing_table)) / sizeof(struct irq_info); - // Make sure I got at least one entry + /* Make sure I got at least one entry */ if (len == 0) { kfree(routing_table); return -1; @@ -244,7 +243,7 @@ static void __iomem *get_subsequent_smbios_entry(void __iomem *smbios_start, if (!smbios_table || !curr) return(NULL); - // set p_max to the end of the table + /* set p_max to the end of the table */ p_max = smbios_start + readw(smbios_table + ST_LENGTH); p_temp = curr; @@ -253,7 +252,8 @@ static void __iomem *get_subsequent_smbios_entry(void __iomem *smbios_start, while ((p_temp < p_max) && !bail) { /* Look for the double NULL terminator * The first condition is the previous byte - * and the second is the curr */ + * and the second is the curr + */ if (!previous_byte && !(readb(p_temp))) { bail = 1; } @@ -387,8 +387,9 @@ static int ctrl_slot_setup(struct controller *ctrl, slot->task_event.expires = jiffies + 5 * HZ; slot->task_event.function = cpqhp_pushbutton_thread; - //FIXME: these capabilities aren't used but if they are - // they need to be correctly implemented + /*FIXME: these capabilities aren't used but if they are + * they need to be correctly implemented + */ slot->capabilities |= PCISLOT_REPLACE_SUPPORTED; slot->capabilities |= PCISLOT_INTERLOCK_SUPPORTED; @@ -402,14 +403,14 @@ static int ctrl_slot_setup(struct controller *ctrl, ctrl_slot = slot_device - (readb(ctrl->hpc_reg + SLOT_MASK) >> 4); - // Check presence + /* Check presence */ slot->capabilities |= ((((~tempdword) >> 23) | ((~tempdword) >> 15)) >> ctrl_slot) & 0x02; - // Check the switch state + /* Check the switch state */ slot->capabilities |= ((~tempdword & 0xFF) >> ctrl_slot) & 0x01; - // Check the slot enable + /* Check the slot enable */ slot->capabilities |= ((read_slot_enable(ctrl) << 2) >> ctrl_slot) & 0x04; @@ -476,11 +477,11 @@ static int ctrl_slot_cleanup (struct controller * ctrl) cpqhp_remove_debugfs_files(ctrl); - //Free IRQ associated with hot plug device + /* Free IRQ associated with hot plug device */ free_irq(ctrl->interrupt, ctrl); - //Unmap the memory + /* Unmap the memory */ iounmap(ctrl->hpc_reg); - //Finally reclaim PCI mem + /* Finally reclaim PCI mem */ release_mem_region(pci_resource_start(ctrl->pci_dev, 0), pci_resource_len(ctrl->pci_dev, 0)); @@ -488,20 +489,17 @@ static int ctrl_slot_cleanup (struct controller * ctrl) } -//============================================================================ -// function: get_slot_mapping -// -// Description: Attempts to determine a logical slot mapping for a PCI -// device. Won't work for more than one PCI-PCI bridge -// in a slot. -// -// Input: u8 bus_num - bus number of PCI device -// u8 dev_num - device number of PCI device -// u8 *slot - Pointer to u8 where slot number will -// be returned -// -// Output: SUCCESS or FAILURE -//============================================================================= +/** + * get_slot_mapping - determine logical slot mapping for PCI device + * + * Won't work for more than one PCI-PCI bridge in a slot. + * + * @bus_num - bus number of PCI device + * @dev_num - device number of PCI device + * @slot - Pointer to u8 where slot number will be returned + * + * Output: SUCCESS or FAILURE + */ static int get_slot_mapping(struct pci_bus *bus, u8 bus_num, u8 dev_num, u8 *slot) { @@ -522,7 +520,7 @@ get_slot_mapping(struct pci_bus *bus, u8 bus_num, u8 dev_num, u8 *slot) len = (PCIIRQRoutingInfoLength->size - sizeof(struct irq_routing_table)) / sizeof(struct irq_info); - // Make sure I got at least one entry + /* Make sure I got at least one entry */ if (len == 0) { kfree(PCIIRQRoutingInfoLength); return -1; @@ -539,13 +537,14 @@ get_slot_mapping(struct pci_bus *bus, u8 bus_num, u8 dev_num, u8 *slot) return 0; } else { /* Did not get a match on the target PCI device. Check - * if the current IRQ table entry is a PCI-to-PCI bridge - * device. If so, and it's secondary bus matches the - * bus number for the target device, I need to save the - * bridge's slot number. If I can not find an entry for - * the target device, I will have to assume it's on the - * other side of the bridge, and assign it the bridge's - * slot. */ + * if the current IRQ table entry is a PCI-to-PCI + * bridge device. If so, and it's secondary bus + * matches the bus number for the target device, I need + * to save the bridge's slot number. If I can not find + * an entry for the target device, I will have to + * assume it's on the other side of the bridge, and + * assign it the bridge's slot. + */ bus->number = tbus; pci_bus_read_config_dword(bus, PCI_DEVFN(tdevice, 0), PCI_CLASS_REVISION, &work); @@ -563,17 +562,18 @@ get_slot_mapping(struct pci_bus *bus, u8 bus_num, u8 dev_num, u8 *slot) } - // If we got here, we didn't find an entry in the IRQ mapping table - // for the target PCI device. If we did determine that the target - // device is on the other side of a PCI-to-PCI bridge, return the - // slot number for the bridge. + /* If we got here, we didn't find an entry in the IRQ mapping table for + * the target PCI device. If we did determine that the target device + * is on the other side of a PCI-to-PCI bridge, return the slot number + * for the bridge. + */ if (bridgeSlot != 0xFF) { *slot = bridgeSlot; kfree(PCIIRQRoutingInfoLength); return 0; } kfree(PCIIRQRoutingInfoLength); - // Couldn't find an entry in the routing table for this PCI device + /* Couldn't find an entry in the routing table for this PCI device */ return -1; } @@ -595,7 +595,7 @@ 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 + /* Wait for exclusive access to hardware */ mutex_lock(&ctrl->crit_sect); if (status == 1) { @@ -603,17 +603,17 @@ cpqhp_set_attention_status(struct controller *ctrl, struct pci_func *func, } else if (status == 0) { amber_LED_off (ctrl, hp_slot); } else { - // Done with exclusive hardware access + /* Done with exclusive hardware access */ mutex_unlock(&ctrl->crit_sect); return(1); } set_SOGO(ctrl); - // Wait for SOBS to be unset + /* Wait for SOBS to be unset */ wait_for_ctrl_irq (ctrl); - // Done with exclusive hardware access + /* Done with exclusive hardware access */ mutex_unlock(&ctrl->crit_sect); return(0); @@ -815,7 +815,9 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) return err; } - // Need to read VID early b/c it's used to differentiate CPQ and INTC discovery + /* Need to read VID early b/c it's used to differentiate CPQ and INTC + * discovery + */ rc = pci_read_config_word(pdev, PCI_VENDOR_ID, &vendor_id); if (rc || ((vendor_id != PCI_VENDOR_ID_COMPAQ) && (vendor_id != PCI_VENDOR_ID_INTEL))) { err(msg_HPC_non_compaq_or_intel); @@ -837,7 +839,9 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) * Also Intel HPC's may have RID=0. */ if ((pdev->revision > 2) || (vendor_id == PCI_VENDOR_ID_INTEL)) { - // TODO: This code can be made to support non-Compaq or Intel subsystem IDs + /* TODO: This code can be made to support non-Compaq or Intel + * subsystem IDs + */ rc = pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vid); if (rc) { err("%s : pci_read_config_word failed\n", __func__); @@ -865,7 +869,9 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) info("Hot Plug Subsystem Device ID: %x\n", subsystem_deviceid); - /* Set Vendor ID, so it can be accessed later from other functions */ + /* Set Vendor ID, so it can be accessed later from other + * functions + */ ctrl->vendor_id = vendor_id; switch (subsystem_vid) { @@ -992,23 +998,23 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) /* PHP Status (0=De-feature PHP, 1=Normal operation) */ if (subsystem_deviceid & 0x0008) { - ctrl->defeature_PHP = 1; // PHP supported + ctrl->defeature_PHP = 1; /* PHP supported */ } else { - ctrl->defeature_PHP = 0; // PHP not supported + ctrl->defeature_PHP = 0; /* PHP not supported */ } /* Alternate Base Address Register Interface (0=not supported, 1=supported) */ if (subsystem_deviceid & 0x0010) { - ctrl->alternate_base_address = 1; // supported + ctrl->alternate_base_address = 1; /* supported */ } else { - ctrl->alternate_base_address = 0; // not supported + ctrl->alternate_base_address = 0; /* not supported */ } /* PCI Config Space Index (0=not supported, 1=supported) */ if (subsystem_deviceid & 0x0020) { - ctrl->pci_config_space = 1; // supported + ctrl->pci_config_space = 1; /* supported */ } else { - ctrl->pci_config_space = 0; // not supported + ctrl->pci_config_space = 0; /* not supported */ } /* PCI-X support */ @@ -1042,7 +1048,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) return -ENODEV; } - // Tell the user that we found one. + /* Tell the user that we found one. */ info("Initializing the PCI hot plug controller residing on PCI bus %d\n", pdev->bus->number); @@ -1120,7 +1126,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) * ********************************************************/ - // find the physical slot number of the first hot plug slot + /* find the physical slot number of the first hot plug slot */ /* Get slot won't work for devices behind bridges, but * in this case it will always be called for the "base" @@ -1137,7 +1143,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto err_iounmap; } - // Store PCI Config Space for all devices on this bus + /* Store PCI Config Space for all devices on this bus */ rc = cpqhp_save_config(ctrl, ctrl->bus, readb(ctrl->hpc_reg + SLOT_MASK)); if (rc) { err("%s: unable to save PCI configuration data, error %d\n", @@ -1148,7 +1154,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) /* * Get IO, memory, and IRQ resources for new devices */ - // The next line is required for cpqhp_find_available_resources + /* The next line is required for cpqhp_find_available_resources */ ctrl->interrupt = pdev->irq; if (ctrl->interrupt < 0x10) { cpqhp_legacy_mode = 1; @@ -1196,12 +1202,14 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto err_iounmap; } - /* Enable Shift Out interrupt and clear it, also enable SERR on power fault */ + /* Enable Shift Out interrupt and clear it, also enable SERR on power + * fault + */ temp_word = readw(ctrl->hpc_reg + MISC); temp_word |= 0x4006; writew(temp_word, ctrl->hpc_reg + MISC); - // Changed 05/05/97 to clear all interrupts at start + /* Changed 05/05/97 to clear all interrupts at start */ writel(0xFFFFFFFFL, ctrl->hpc_reg + INT_INPUT_CLEAR); ctrl->ctrl_int_comp = readl(ctrl->hpc_reg + INT_INPUT_CLEAR); @@ -1216,13 +1224,14 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) cpqhp_ctrl_list = ctrl; } - // turn off empty slots here unless command line option "ON" set - // Wait for exclusive access to hardware + /* turn off empty slots here unless command line option "ON" set + * Wait for exclusive access to hardware + */ mutex_lock(&ctrl->crit_sect); num_of_slots = readb(ctrl->hpc_reg + SLOT_MASK) & 0x0F; - // find first device number for the ctrl + /* find first device number for the ctrl */ device = readb(ctrl->hpc_reg + SLOT_MASK) >> 4; while (num_of_slots) { @@ -1234,7 +1243,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) hp_slot = func->device - ctrl->slot_device_offset; dbg("hp_slot: %d\n", hp_slot); - // We have to save the presence info for these slots + /* We have to save the presence info for these slots */ temp_word = ctrl->ctrl_int_comp >> 16; func->presence_save = (temp_word >> hp_slot) & 0x01; func->presence_save |= (temp_word >> (hp_slot + 7)) & 0x02; @@ -1258,7 +1267,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (!power_mode) { set_SOGO(ctrl); - // Wait for SOBS to be unset + /* Wait for SOBS to be unset */ wait_for_ctrl_irq(ctrl); } @@ -1269,7 +1278,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto err_free_irq; } - // Done with exclusive hardware access + /* Done with exclusive hardware access */ mutex_unlock(&ctrl->crit_sect); cpqhp_create_debugfs_files(ctrl); @@ -1316,11 +1325,11 @@ static int one_time_init(void) cpqhp_slot_list[loop] = NULL; } - // FIXME: We also need to hook the NMI handler eventually. - // this also needs to be worked with Christoph - // register_NMI_handler(); - - // Map rom address + /* FIXME: We also need to hook the NMI handler eventually. + * this also needs to be worked with Christoph + * register_NMI_handler(); + */ + /* Map rom address */ cpqhp_rom_start = ioremap(ROM_PHY_ADDR, ROM_PHY_LEN); if (!cpqhp_rom_start) { err ("Could not ioremap memory region for ROM\n"); @@ -1328,7 +1337,9 @@ static int one_time_init(void) goto error; } - /* Now, map the int15 entry point if we are on compaq specific hardware */ + /* Now, map the int15 entry point if we are on compaq specific + * hardware + */ compaq_nvram_init(cpqhp_rom_start); /* Map smbios table entry point structure */ @@ -1462,11 +1473,11 @@ static void __exit unload_cpqphpd(void) } } - // Stop the notification mechanism + /* Stop the notification mechanism */ if (initialized) cpqhp_event_stop_thread(); - //unmap the rom address + /* unmap the rom address */ if (cpqhp_rom_start) iounmap(cpqhp_rom_start); if (smbios_start) diff --git a/drivers/pci/hotplug/cpqphp_ctrl.c b/drivers/pci/hotplug/cpqphp_ctrl.c index ec3a76519af..b02b8dddcf9 100644 --- a/drivers/pci/hotplug/cpqphp_ctrl.c +++ b/drivers/pci/hotplug/cpqphp_ctrl.c @@ -81,14 +81,15 @@ static u8 handle_switch_change(u8 change, struct controller * ctrl) for (hp_slot = 0; hp_slot < 6; hp_slot++) { if (change & (0x1L << hp_slot)) { - /********************************** + /* * this one changed. - **********************************/ + */ func = cpqhp_slot_find(ctrl->bus, (hp_slot + ctrl->slot_device_offset), 0); /* this is the structure that tells the worker thread - *what to do */ + * what to do + */ taskInfo = &(ctrl->event_queue[ctrl->next_event]); ctrl->next_event = (ctrl->next_event + 1) % 10; taskInfo->hp_slot = hp_slot; @@ -100,17 +101,17 @@ static u8 handle_switch_change(u8 change, struct controller * ctrl) func->presence_save |= (temp_word >> (hp_slot + 7)) & 0x02; if (ctrl->ctrl_int_comp & (0x1L << hp_slot)) { - /********************************** + /* * Switch opened - **********************************/ + */ func->switch_save = 0; taskInfo->event_type = INT_SWITCH_OPEN; } else { - /********************************** + /* * Switch closed - **********************************/ + */ func->switch_save = 0x10; @@ -152,17 +153,17 @@ static u8 handle_presence_change(u16 change, struct controller * ctrl) if (!change) return 0; - /********************************** + /* * Presence Change - **********************************/ + */ dbg("cpqsbd: Presence/Notify input change.\n"); dbg(" Changed bits are 0x%4.4x\n", change ); for (hp_slot = 0; hp_slot < 6; hp_slot++) { if (change & (0x0101 << hp_slot)) { - /********************************** + /* * this one changed. - **********************************/ + */ func = cpqhp_slot_find(ctrl->bus, (hp_slot + ctrl->slot_device_offset), 0); @@ -177,22 +178,23 @@ static u8 handle_presence_change(u16 change, struct controller * ctrl) return 0; /* If the switch closed, must be a button - * If not in button mode, nevermind */ + * If not in button mode, nevermind + */ if (func->switch_save && (ctrl->push_button == 1)) { temp_word = ctrl->ctrl_int_comp >> 16; temp_byte = (temp_word >> hp_slot) & 0x01; temp_byte |= (temp_word >> (hp_slot + 7)) & 0x02; if (temp_byte != func->presence_save) { - /************************************** + /* * button Pressed (doesn't do anything) - **************************************/ + */ dbg("hp_slot %d button pressed\n", hp_slot); taskInfo->event_type = INT_BUTTON_PRESS; } else { - /********************************** + /* * button Released - TAKE ACTION!!!! - **********************************/ + */ dbg("hp_slot %d button released\n", hp_slot); taskInfo->event_type = INT_BUTTON_RELEASE; @@ -210,7 +212,8 @@ static u8 handle_presence_change(u16 change, struct controller * ctrl) } } else { /* Switch is open, assume a presence change - * Save the presence state */ + * Save the presence state + */ temp_word = ctrl->ctrl_int_comp >> 16; func->presence_save = (temp_word >> hp_slot) & 0x01; func->presence_save |= (temp_word >> (hp_slot + 7)) & 0x02; @@ -241,17 +244,17 @@ static u8 handle_power_fault(u8 change, struct controller * ctrl) if (!change) return 0; - /********************************** + /* * power fault - **********************************/ + */ info("power fault interrupt\n"); for (hp_slot = 0; hp_slot < 6; hp_slot++) { if (change & (0x01 << hp_slot)) { - /********************************** + /* * this one changed. - **********************************/ + */ func = cpqhp_slot_find(ctrl->bus, (hp_slot + ctrl->slot_device_offset), 0); @@ -262,16 +265,16 @@ static u8 handle_power_fault(u8 change, struct controller * ctrl) rc++; if (ctrl->ctrl_int_comp & (0x00000100 << hp_slot)) { - /********************************** + /* * power fault Cleared - **********************************/ + */ func->status = 0x00; taskInfo->event_type = INT_POWER_FAULT_CLEAR; } else { - /********************************** + /* * power fault - **********************************/ + */ taskInfo->event_type = INT_POWER_FAULT; if (ctrl->rev < 4) { @@ -432,13 +435,15 @@ static struct pci_resource *do_pre_bridge_resource_split(struct pci_resource **h /* If we got here, there the bridge requires some of the resource, but - * we may be able to split some off of the front */ + * we may be able to split some off of the front + */ node = *head; if (node->length & (alignment -1)) { /* this one isn't an aligned length, so we'll make a new entry - * and split it up. */ + * and split it up. + */ split_node = kmalloc(sizeof(*split_node), GFP_KERNEL); if (!split_node) @@ -556,7 +561,8 @@ static struct pci_resource *get_io_resource(struct pci_resource **head, u32 size if (node->base & (size - 1)) { /* this one isn't base aligned properly - * so we'll make a new entry and split it up */ + * so we'll make a new entry and split it up + */ temp_dword = (node->base | (size-1)) + 1; /* Short circuit if adjusted size is too small */ @@ -581,7 +587,8 @@ static struct pci_resource *get_io_resource(struct pci_resource **head, u32 size /* Don't need to check if too small since we already did */ if (node->length > size) { /* this one is longer than we need - * so we'll make a new entry and split it up */ + * so we'll make a new entry and split it up + */ split_node = kmalloc(sizeof(*split_node), GFP_KERNEL); if (!split_node) @@ -601,7 +608,8 @@ static struct pci_resource *get_io_resource(struct pci_resource **head, u32 size continue; /* If we got here, then it is the right size - * Now take it out of the list and break */ + * Now take it out of the list and break + */ if (*head == node) { *head = node->next; } else { @@ -643,13 +651,15 @@ static struct pci_resource *get_max_resource(struct pci_resource **head, u32 siz for (max = *head; max; max = max->next) { /* If not big enough we could probably just bail, - * instead we'll continue to the next. */ + * instead we'll continue to the next. + */ if (max->length < size) continue; if (max->base & (size - 1)) { /* this one isn't base aligned properly - * so we'll make a new entry and split it up */ + * so we'll make a new entry and split it up + */ temp_dword = (max->base | (size-1)) + 1; /* Short circuit if adjusted size is too small */ @@ -672,7 +682,8 @@ static struct pci_resource *get_max_resource(struct pci_resource **head, u32 siz if ((max->base + max->length) & (size - 1)) { /* this one isn't end aligned properly at the top - * so we'll make a new entry and split it up */ + * so we'll make a new entry and split it up + */ split_node = kmalloc(sizeof(*split_node), GFP_KERNEL); if (!split_node) @@ -744,7 +755,8 @@ static struct pci_resource *get_resource(struct pci_resource **head, u32 size) if (node->base & (size - 1)) { dbg("%s: not aligned\n", __func__); /* this one isn't base aligned properly - * so we'll make a new entry and split it up */ + * so we'll make a new entry and split it up + */ temp_dword = (node->base | (size-1)) + 1; /* Short circuit if adjusted size is too small */ @@ -769,7 +781,8 @@ static struct pci_resource *get_resource(struct pci_resource **head, u32 size) if (node->length > size) { dbg("%s: too big\n", __func__); /* this one is longer than we need - * so we'll make a new entry and split it up */ + * so we'll make a new entry and split it up + */ split_node = kmalloc(sizeof(*split_node), GFP_KERNEL); if (!split_node) @@ -888,17 +901,17 @@ irqreturn_t cpqhp_ctrl_intr(int IRQ, void *data) misc = readw(ctrl->hpc_reg + MISC); - /*************************************** + /* * Check to see if it was our interrupt - ***************************************/ + */ if (!(misc & 0x000C)) { return IRQ_NONE; } if (misc & 0x0004) { - /********************************** + /* * Serial Output interrupt Pending - **********************************/ + */ /* Clear the interrupt */ misc |= 0x0004; @@ -963,7 +976,8 @@ struct pci_func *cpqhp_slot_create(u8 busnumber) new_slot = kzalloc(sizeof(*new_slot), GFP_KERNEL); if (new_slot == NULL) { /* I'm not dead yet! - * You will be. */ + * You will be. + */ return new_slot; } @@ -1135,7 +1149,8 @@ static u8 set_controller_speed(struct controller *ctrl, u8 adapter_speed, u8 hp_ return 0; /* We don't allow freq/mode changes if we find another adapter running - * in another slot on this controller */ + * in another slot on this controller + */ for(slot = ctrl->slot; slot; slot = slot->next) { if (slot->device == (hp_slot + ctrl->slot_device_offset)) continue; @@ -1145,7 +1160,8 @@ static u8 set_controller_speed(struct controller *ctrl, u8 adapter_speed, u8 hp_ continue; /* If another adapter is running on the same segment but at a * lower speed/mode, we allow the new adapter to function at - * this rate if supported */ + * this rate if supported + */ if (ctrl->speed < adapter_speed) return 0; @@ -1153,7 +1169,8 @@ static u8 set_controller_speed(struct controller *ctrl, u8 adapter_speed, u8 hp_ } /* If the controller doesn't support freq/mode changes and the - * controller is running at a higher mode, we bail */ + * controller is running at a higher mode, we bail + */ if ((ctrl->speed > adapter_speed) && (!ctrl->pcix_speed_capability)) return 1; @@ -1162,7 +1179,8 @@ static u8 set_controller_speed(struct controller *ctrl, u8 adapter_speed, u8 hp_ return 0; /* We try to set the max speed supported by both the adapter and - * controller */ + * controller + */ if (ctrl->speed_capability < adapter_speed) { if (ctrl->speed == ctrl->speed_capability) return 0; @@ -1244,7 +1262,7 @@ static u8 set_controller_speed(struct controller *ctrl, u8 adapter_speed, u8 hp_ } /* the following routines constitute the bulk of the - hotplug controller logic + * hotplug controller logic */ @@ -1269,14 +1287,14 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl) hp_slot = func->device - ctrl->slot_device_offset; if (readl(ctrl->hpc_reg + INT_INPUT_CLEAR) & (0x01L << hp_slot)) { - /********************************** + /* * The switch is open. - **********************************/ + */ rc = INTERLOCK_OPEN; } else if (is_slot_enabled (ctrl, hp_slot)) { - /********************************** + /* * The board is already on - **********************************/ + */ rc = CARD_FUNCTIONING; } else { mutex_lock(&ctrl->crit_sect); @@ -1352,7 +1370,8 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl) * Get slot won't work for devices behind * bridges, but in this case it will always be * called for the "base" bus/dev/func of an - * adapter. */ + * adapter. + */ mutex_lock(&ctrl->crit_sect); @@ -1377,7 +1396,8 @@ static u32 board_replaced(struct pci_func *func, struct controller *ctrl) * Get slot won't work for devices behind bridges, but * in this case it will always be called for the "base" - * bus/dev/func of an adapter. */ + * bus/dev/func of an adapter. + */ mutex_lock(&ctrl->crit_sect); @@ -1434,7 +1454,8 @@ static u32 board_added(struct pci_func *func, struct controller *ctrl) wait_for_ctrl_irq (ctrl); /* Change bits in slot power register to force another shift out - * NOTE: this is to work around the timer bug */ + * NOTE: this is to work around the timer bug + */ temp_byte = readb(ctrl->hpc_reg + SLOT_POWER); writeb(0x00, ctrl->hpc_reg + SLOT_POWER); writeb(temp_byte, ctrl->hpc_reg + SLOT_POWER); @@ -2484,7 +2505,8 @@ static int configure_new_function(struct controller *ctrl, struct pci_func *func temp_resources.irqs = &irqs; /* Make copies of the nodes we are going to pass down so that - * if there is a problem,we can just use these to free resources */ + * if there is a problem,we can just use these to free resources + */ hold_bus_node = kmalloc(sizeof(*hold_bus_node), GFP_KERNEL); hold_IO_node = kmalloc(sizeof(*hold_IO_node), GFP_KERNEL); hold_mem_node = kmalloc(sizeof(*hold_mem_node), GFP_KERNEL); @@ -2556,7 +2578,8 @@ static int configure_new_function(struct controller *ctrl, struct pci_func *func temp_word = (p_mem_node->base + p_mem_node->length - 1) >> 16; rc = pci_bus_write_config_word (pci_bus, devfn, PCI_PREF_MEMORY_LIMIT, temp_word); - /* Adjust this to compensate for extra adjustment in first loop */ + /* Adjust this to compensate for extra adjustment in first loop + */ irqs.barber_pole--; rc = 0; diff --git a/drivers/pci/hotplug/cpqphp_nvram.c b/drivers/pci/hotplug/cpqphp_nvram.c index 76e110f0e3a..76ba8a1c774 100644 --- a/drivers/pci/hotplug/cpqphp_nvram.c +++ b/drivers/pci/hotplug/cpqphp_nvram.c @@ -94,12 +94,13 @@ static u8 evbuffer[1024]; static void __iomem *compaq_int15_entry_point; -static spinlock_t int15_lock; /* lock for ordering int15_bios_call() */ +/* lock for ordering int15_bios_call() */ +static spinlock_t int15_lock; /* This is a series of function that deals with - setting & getting the hotplug resource table in some environment variable. -*/ + * setting & getting the hotplug resource table in some environment variable. + */ /* * We really shouldn't be doing this unless there is a _very_ good reason to!!! @@ -210,14 +211,16 @@ static int load_HRT (void __iomem *rom_start) available = 1024; - // Now load the EV + /* Now load the EV */ temp_dword = available; rc = access_EV(READ_EV, "CQTHPS", evbuffer, &temp_dword); evbuffer_length = temp_dword; - // We're maintaining the resource lists so write FF to invalidate old info + /* We're maintaining the resource lists so write FF to invalidate old + * info + */ temp_dword = 1; rc = access_EV(WRITE_EV, "CQTHPS", &temp_byte, &temp_dword); @@ -264,12 +267,12 @@ static u32 store_HRT (void __iomem *rom_start) ctrl = cpqhp_ctrl_list; - // The revision of this structure + /* The revision of this structure */ rc = add_byte( &pFill, 1 + ctrl->push_flag, &usedbytes, &available); if (rc) return(rc); - // The number of controllers + /* The number of controllers */ rc = add_byte( &pFill, 1, &usedbytes, &available); if (rc) return(rc); @@ -279,27 +282,27 @@ static u32 store_HRT (void __iomem *rom_start) numCtrl++; - // The bus number + /* The bus number */ rc = add_byte( &pFill, ctrl->bus, &usedbytes, &available); if (rc) return(rc); - // The device Number + /* The device Number */ rc = add_byte( &pFill, PCI_SLOT(ctrl->pci_dev->devfn), &usedbytes, &available); if (rc) return(rc); - // The function Number + /* The function Number */ rc = add_byte( &pFill, PCI_FUNC(ctrl->pci_dev->devfn), &usedbytes, &available); if (rc) return(rc); - // Skip the number of available entries + /* Skip the number of available entries */ rc = add_dword( &pFill, 0, &usedbytes, &available); if (rc) return(rc); - // Figure out memory Available + /* Figure out memory Available */ resNode = ctrl->mem_head; @@ -308,12 +311,12 @@ static u32 store_HRT (void __iomem *rom_start) while (resNode) { loop ++; - // base + /* base */ rc = add_dword( &pFill, resNode->base, &usedbytes, &available); if (rc) return(rc); - // length + /* length */ rc = add_dword( &pFill, resNode->length, &usedbytes, &available); if (rc) return(rc); @@ -321,10 +324,10 @@ static u32 store_HRT (void __iomem *rom_start) resNode = resNode->next; } - // Fill in the number of entries + /* Fill in the number of entries */ p_ev_ctrl->mem_avail = loop; - // Figure out prefetchable memory Available + /* Figure out prefetchable memory Available */ resNode = ctrl->p_mem_head; @@ -333,12 +336,12 @@ static u32 store_HRT (void __iomem *rom_start) while (resNode) { loop ++; - // base + /* base */ rc = add_dword( &pFill, resNode->base, &usedbytes, &available); if (rc) return(rc); - // length + /* length */ rc = add_dword( &pFill, resNode->length, &usedbytes, &available); if (rc) return(rc); @@ -346,10 +349,10 @@ static u32 store_HRT (void __iomem *rom_start) resNode = resNode->next; } - // Fill in the number of entries + /* Fill in the number of entries */ p_ev_ctrl->p_mem_avail = loop; - // Figure out IO Available + /* Figure out IO Available */ resNode = ctrl->io_head; @@ -358,12 +361,12 @@ static u32 store_HRT (void __iomem *rom_start) while (resNode) { loop ++; - // base + /* base */ rc = add_dword( &pFill, resNode->base, &usedbytes, &available); if (rc) return(rc); - // length + /* length */ rc = add_dword( &pFill, resNode->length, &usedbytes, &available); if (rc) return(rc); @@ -371,10 +374,10 @@ static u32 store_HRT (void __iomem *rom_start) resNode = resNode->next; } - // Fill in the number of entries + /* Fill in the number of entries */ p_ev_ctrl->io_avail = loop; - // Figure out bus Available + /* Figure out bus Available */ resNode = ctrl->bus_head; @@ -383,12 +386,12 @@ static u32 store_HRT (void __iomem *rom_start) while (resNode) { loop ++; - // base + /* base */ rc = add_dword( &pFill, resNode->base, &usedbytes, &available); if (rc) return(rc); - // length + /* length */ rc = add_dword( &pFill, resNode->length, &usedbytes, &available); if (rc) return(rc); @@ -396,7 +399,7 @@ static u32 store_HRT (void __iomem *rom_start) resNode = resNode->next; } - // Fill in the number of entries + /* Fill in the number of entries */ p_ev_ctrl->bus_avail = loop; ctrl = ctrl->next; @@ -404,7 +407,7 @@ static u32 store_HRT (void __iomem *rom_start) p_EV_header->num_of_ctrl = numCtrl; - // Now store the EV + /* Now store the EV */ temp_dword = usedbytes; @@ -449,20 +452,21 @@ int compaq_nvram_load (void __iomem *rom_start, struct controller *ctrl) struct ev_hrt_header *p_EV_header; if (!evbuffer_init) { - // Read the resource list information in from NVRAM + /* Read the resource list information in from NVRAM */ if (load_HRT(rom_start)) memset (evbuffer, 0, 1024); evbuffer_init = 1; } - // If we saved information in NVRAM, use it now + /* If we saved information in NVRAM, use it now */ p_EV_header = (struct ev_hrt_header *) evbuffer; - // The following code is for systems where version 1.0 of this - // driver has been loaded, but doesn't support the hardware. - // In that case, the driver would incorrectly store something - // in NVRAM. + /* The following code is for systems where version 1.0 of this + * driver has been loaded, but doesn't support the hardware. + * In that case, the driver would incorrectly store something + * in NVRAM. + */ if ((p_EV_header->Version == 2) || ((p_EV_header->Version == 1) && !ctrl->push_flag)) { p_byte = &(p_EV_header->next); @@ -491,7 +495,7 @@ int compaq_nvram_load (void __iomem *rom_start, struct controller *ctrl) if (p_byte > ((u8*)p_EV_header + evbuffer_length)) return 2; - // Skip forward to the next entry + /* Skip forward to the next entry */ p_byte += (nummem + numpmem + numio + numbus) * 8; if (p_byte > ((u8*)p_EV_header + evbuffer_length)) @@ -629,8 +633,9 @@ int compaq_nvram_load (void __iomem *rom_start, struct controller *ctrl) ctrl->bus_head = bus_node; } - // If all of the following fail, we don't have any resources for - // hot plug add + /* If all of the following fail, we don't have any resources for + * hot plug add + */ rc = 1; rc &= cpqhp_resource_sort_and_combine(&(ctrl->mem_head)); rc &= cpqhp_resource_sort_and_combine(&(ctrl->p_mem_head)); diff --git a/drivers/pci/hotplug/cpqphp_pci.c b/drivers/pci/hotplug/cpqphp_pci.c index 573a2702fb6..2e96bae3c82 100644 --- a/drivers/pci/hotplug/cpqphp_pci.c +++ b/drivers/pci/hotplug/cpqphp_pci.c @@ -178,17 +178,17 @@ int cpqhp_set_irq (u8 bus_num, u8 dev_num, u8 int_pin, u8 irq_num) if (!rc) return !rc; - // set the Edge Level Control Register (ELCR) + /* set the Edge Level Control Register (ELCR) */ temp_word = inb(0x4d0); temp_word |= inb(0x4d1) << 8; temp_word |= 0x01 << irq_num; - // This should only be for x86 as it sets the Edge Level Control Register - outb((u8) (temp_word & 0xFF), 0x4d0); - outb((u8) ((temp_word & 0xFF00) >> 8), 0x4d1); - rc = 0; - } + /* This should only be for x86 as it sets the Edge Level + * Control Register + */ + outb((u8) (temp_word & 0xFF), 0x4d0); outb((u8) ((temp_word & + 0xFF00) >> 8), 0x4d1); rc = 0; } return rc; } @@ -213,11 +213,11 @@ static int PCI_ScanBusForNonBridge(struct controller *ctrl, u8 bus_num, u8 * dev ctrl->pci_bus->number = bus_num; for (tdevice = 0; tdevice < 0xFF; tdevice++) { - //Scan for access first + /* Scan for access first */ if (PCI_RefinedAccessConfig(ctrl->pci_bus, tdevice, 0x08, &work) == -1) continue; dbg("Looking for nonbridge bus_num %d dev_num %d\n", bus_num, tdevice); - //Yep we got one. Not a bridge ? + /* Yep we got one. Not a bridge ? */ if ((work >> 8) != PCI_TO_PCI_BRIDGE_CLASS) { *dev_num = tdevice; dbg("found it !\n"); @@ -225,11 +225,11 @@ static int PCI_ScanBusForNonBridge(struct controller *ctrl, u8 bus_num, u8 * dev } } for (tdevice = 0; tdevice < 0xFF; tdevice++) { - //Scan for access first + /* Scan for access first */ if (PCI_RefinedAccessConfig(ctrl->pci_bus, tdevice, 0x08, &work) == -1) continue; dbg("Looking for bridge bus_num %d dev_num %d\n", bus_num, tdevice); - //Yep we got one. bridge ? + /* Yep we got one. bridge ? */ if ((work >> 8) == PCI_TO_PCI_BRIDGE_CLASS) { pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(tdevice, 0), PCI_SECONDARY_BUS, &tbus); dbg("Recurse on bus_num %d tdevice %d\n", tbus, tdevice); @@ -257,7 +257,7 @@ static int PCI_GetBusDevHelper(struct controller *ctrl, u8 *bus_num, u8 *dev_num len = (PCIIRQRoutingInfoLength->size - sizeof(struct irq_routing_table)) / sizeof(struct irq_info); - // Make sure I got at least one entry + /* Make sure I got at least one entry */ if (len == 0) { kfree(PCIIRQRoutingInfoLength ); return -1; @@ -304,11 +304,14 @@ static int PCI_GetBusDevHelper(struct controller *ctrl, u8 *bus_num, u8 *dev_num int cpqhp_get_bus_dev (struct controller *ctrl, u8 * bus_num, u8 * dev_num, u8 slot) { - return PCI_GetBusDevHelper(ctrl, bus_num, dev_num, slot, 0); //plain (bridges allowed) + /* plain (bridges allowed) */ + return PCI_GetBusDevHelper(ctrl, bus_num, dev_num, slot, 0); } -/* More PCI configuration routines; this time centered around hotplug controller */ +/* More PCI configuration routines; this time centered around hotplug + * controller + */ /* @@ -339,12 +342,12 @@ int cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug) int stop_it; int index; - // Decide which slots are supported + /* Decide which slots are supported */ if (is_hot_plug) { - //********************************* - // is_hot_plug is the slot mask - //********************************* + /* + * is_hot_plug is the slot mask + */ FirstSupported = is_hot_plug >> 4; LastSupported = FirstSupported + (is_hot_plug & 0x0F) - 1; } else { @@ -352,13 +355,13 @@ int cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug) LastSupported = 0x1F; } - // Save PCI configuration space for all devices in supported slots + /* Save PCI configuration space for all devices in supported slots */ ctrl->pci_bus->number = busnumber; for (device = FirstSupported; device <= LastSupported; device++) { ID = 0xFFFFFFFF; rc = pci_bus_read_config_dword (ctrl->pci_bus, PCI_DEVFN(device, 0), PCI_VENDOR_ID, &ID); - if (ID != 0xFFFFFFFF) { // device in slot + if (ID != 0xFFFFFFFF) { /* device in slot */ rc = pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(device, 0), 0x0B, &class_code); if (rc) return rc; @@ -367,7 +370,7 @@ int cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug) if (rc) return rc; - // If multi-function device, set max_functions to 8 + /* If multi-function device, set max_functions to 8 */ if (header_type & 0x80) max_functions = 8; else @@ -377,18 +380,19 @@ int cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug) do { DevError = 0; - - if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { // P-P Bridge - // Recurse the subordinate bus - // get the subordinate bus number + if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { + /* Recurse the subordinate bus + * get the subordinate bus number + */ rc = pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(device, function), PCI_SECONDARY_BUS, &secondary_bus); if (rc) { return rc; } else { sub_bus = (int) secondary_bus; - // Save secondary bus cfg spc - // with this recursive call. + /* Save secondary bus cfg spc + * with this recursive call. + */ rc = cpqhp_save_config(ctrl, sub_bus, 0); if (rc) return rc; @@ -403,7 +407,7 @@ int cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug) new_slot = cpqhp_slot_find(busnumber, device, index++); if (!new_slot) { - // Setup slot structure. + /* Setup slot structure. */ new_slot = cpqhp_slot_create(busnumber); if (new_slot == NULL) @@ -415,7 +419,7 @@ int cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug) new_slot->function = (u8) function; new_slot->is_a_board = 1; new_slot->switch_save = 0x10; - // In case of unsupported board + /* In case of unsupported board */ new_slot->status = DevError; new_slot->pci_dev = pci_find_slot(new_slot->bus, (new_slot->device << 3) | new_slot->function); @@ -429,14 +433,15 @@ int cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug) stop_it = 0; - // this loop skips to the next present function - // reading in Class Code and Header type. + /* this loop skips to the next present function + * reading in Class Code and Header type. + */ while ((function < max_functions)&&(!stop_it)) { rc = pci_bus_read_config_dword (ctrl->pci_bus, PCI_DEVFN(device, function), PCI_VENDOR_ID, &ID); - if (ID == 0xFFFFFFFF) { // nothing there. + if (ID == 0xFFFFFFFF) { /* nothing there. */ function++; - } else { // Something there + } else { /* Something there */ rc = pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(device, function), 0x0B, &class_code); if (rc) return rc; @@ -450,9 +455,9 @@ int cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug) } } while (function < max_functions); - } // End of IF (device in slot?) + } /* End of IF (device in slot?) */ else if (is_hot_plug) { - // Setup slot structure with entry for empty slot + /* Setup slot structure with entry for empty slot */ new_slot = cpqhp_slot_create(busnumber); if (new_slot == NULL) { @@ -466,7 +471,7 @@ int cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug) new_slot->presence_save = 0; new_slot->switch_save = 0; } - } // End of FOR loop + } /* End of FOR loop */ return(0); } @@ -498,11 +503,11 @@ int cpqhp_save_slot_config (struct controller *ctrl, struct pci_func * new_slot) ctrl->pci_bus->number = new_slot->bus; pci_bus_read_config_dword (ctrl->pci_bus, PCI_DEVFN(new_slot->device, 0), PCI_VENDOR_ID, &ID); - if (ID != 0xFFFFFFFF) { // device in slot + if (ID != 0xFFFFFFFF) { /* device in slot */ pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(new_slot->device, 0), 0x0B, &class_code); pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(new_slot->device, 0), PCI_HEADER_TYPE, &header_type); - if (header_type & 0x80) // Multi-function device + if (header_type & 0x80) /* Multi-function device */ max_functions = 8; else max_functions = 1; @@ -510,19 +515,21 @@ int cpqhp_save_slot_config (struct controller *ctrl, struct pci_func * new_slot) function = 0; do { - if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { // PCI-PCI Bridge - // Recurse the subordinate bus + if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { + /* Recurse the subordinate bus */ pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(new_slot->device, function), PCI_SECONDARY_BUS, &secondary_bus); sub_bus = (int) secondary_bus; - // Save the config headers for the secondary bus. + /* Save the config headers for the secondary + * bus. + */ rc = cpqhp_save_config(ctrl, sub_bus, 0); if (rc) return(rc); ctrl->pci_bus->number = new_slot->bus; - } // End of IF + } /* End of IF */ new_slot->status = 0; @@ -534,15 +541,15 @@ int cpqhp_save_slot_config (struct controller *ctrl, struct pci_func * new_slot) stop_it = 0; - // this loop skips to the next present function - // reading in the Class Code and the Header type. - + /* this loop skips to the next present function + * reading in the Class Code and the Header type. + */ while ((function < max_functions) && (!stop_it)) { pci_bus_read_config_dword (ctrl->pci_bus, PCI_DEVFN(new_slot->device, function), PCI_VENDOR_ID, &ID); - if (ID == 0xFFFFFFFF) { // nothing there. + if (ID == 0xFFFFFFFF) { /* nothing there. */ function++; - } else { // Something there + } else { /* Something there */ pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(new_slot->device, function), 0x0B, &class_code); pci_bus_read_config_byte (ctrl->pci_bus, PCI_DEVFN(new_slot->device, function), PCI_HEADER_TYPE, &header_type); @@ -552,7 +559,7 @@ int cpqhp_save_slot_config (struct controller *ctrl, struct pci_func * new_slot) } } while (function < max_functions); - } // End of IF (device in slot?) + } /* End of IF (device in slot?) */ else { return 2; } @@ -590,11 +597,10 @@ int cpqhp_save_base_addr_length(struct controller *ctrl, struct pci_func * func) pci_bus->number = func->bus; devfn = PCI_DEVFN(func->device, func->function); - // Check for Bridge + /* Check for Bridge */ pci_bus_read_config_byte (pci_bus, devfn, PCI_HEADER_TYPE, &header_type); if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { - // PCI-PCI Bridge pci_bus_read_config_byte (pci_bus, devfn, PCI_SECONDARY_BUS, &secondary_bus); sub_bus = (int) secondary_bus; @@ -610,23 +616,27 @@ int cpqhp_save_base_addr_length(struct controller *ctrl, struct pci_func * func) } pci_bus->number = func->bus; - //FIXME: this loop is duplicated in the non-bridge case. The two could be rolled together - // Figure out IO and memory base lengths + /* FIXME: this loop is duplicated in the non-bridge + * case. The two could be rolled together Figure out + * IO and memory base lengths + */ for (cloop = 0x10; cloop <= 0x14; cloop += 4) { temp_register = 0xFFFFFFFF; pci_bus_write_config_dword (pci_bus, devfn, cloop, temp_register); pci_bus_read_config_dword (pci_bus, devfn, cloop, &base); - - if (base) { // If this register is implemented + /* If this register is implemented */ + if (base) { if (base & 0x01L) { - // IO base - // set base = amount of IO space requested + /* IO base + * set base = amount of IO space + * requested + */ base = base & 0xFFFFFFFE; base = (~base) + 1; type = 1; } else { - // memory base + /* memory base */ base = base & 0xFFFFFFF0; base = (~base) + 1; @@ -637,32 +647,36 @@ int cpqhp_save_base_addr_length(struct controller *ctrl, struct pci_func * func) type = 0; } - // Save information in slot structure + /* Save information in slot structure */ func->base_length[(cloop - 0x10) >> 2] = base; func->base_type[(cloop - 0x10) >> 2] = type; - } // End of base register loop - + } /* End of base register loop */ - } else if ((header_type & 0x7F) == 0x00) { // PCI-PCI Bridge - // Figure out IO and memory base lengths + } else if ((header_type & 0x7F) == 0x00) { + /* Figure out IO and memory base lengths */ for (cloop = 0x10; cloop <= 0x24; cloop += 4) { temp_register = 0xFFFFFFFF; pci_bus_write_config_dword (pci_bus, devfn, cloop, temp_register); pci_bus_read_config_dword (pci_bus, devfn, cloop, &base); - if (base) { // If this register is implemented + /* If this register is implemented */ + if (base) { if (base & 0x01L) { - // IO base - // base = amount of IO space requested + /* IO base + * base = amount of IO space + * requested + */ base = base & 0xFFFFFFFE; base = (~base) + 1; type = 1; } else { - // memory base - // base = amount of memory space requested + /* memory base + * base = amount of memory + * space requested + */ base = base & 0xFFFFFFF0; base = (~base) + 1; @@ -673,16 +687,16 @@ int cpqhp_save_base_addr_length(struct controller *ctrl, struct pci_func * func) type = 0; } - // Save information in slot structure + /* Save information in slot structure */ func->base_length[(cloop - 0x10) >> 2] = base; func->base_type[(cloop - 0x10) >> 2] = type; - } // End of base register loop + } /* End of base register loop */ - } else { // Some other unknown header type + } else { /* Some other unknown header type */ } - // find the next device in this slot + /* find the next device in this slot */ func = cpqhp_slot_find(func->bus, func->device, index++); } @@ -728,18 +742,18 @@ int cpqhp_save_used_resources (struct controller *ctrl, struct pci_func * func) pci_bus->number = func->bus; devfn = PCI_DEVFN(func->device, func->function); - // Save the command register + /* Save the command register */ pci_bus_read_config_word(pci_bus, devfn, PCI_COMMAND, &save_command); - // disable card + /* disable card */ command = 0x00; pci_bus_write_config_word(pci_bus, devfn, PCI_COMMAND, command); - // Check for Bridge + /* Check for Bridge */ pci_bus_read_config_byte(pci_bus, devfn, PCI_HEADER_TYPE, &header_type); - if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { // PCI-PCI Bridge - // Clear Bridge Control Register + if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { + /* Clear Bridge Control Register */ command = 0x00; pci_bus_write_config_word(pci_bus, devfn, PCI_BRIDGE_CONTROL, command); pci_bus_read_config_byte(pci_bus, devfn, PCI_SECONDARY_BUS, &secondary_bus); @@ -755,7 +769,7 @@ int cpqhp_save_used_resources (struct controller *ctrl, struct pci_func * func) bus_node->next = func->bus_head; func->bus_head = bus_node; - // Save IO base and Limit registers + /* Save IO base and Limit registers */ pci_bus_read_config_byte(pci_bus, devfn, PCI_IO_BASE, &b_base); pci_bus_read_config_byte(pci_bus, devfn, PCI_IO_LIMIT, &b_length); @@ -771,7 +785,7 @@ int cpqhp_save_used_resources (struct controller *ctrl, struct pci_func * func) func->io_head = io_node; } - // Save memory base and Limit registers + /* Save memory base and Limit registers */ pci_bus_read_config_word(pci_bus, devfn, PCI_MEMORY_BASE, &w_base); pci_bus_read_config_word(pci_bus, devfn, PCI_MEMORY_LIMIT, &w_length); @@ -787,7 +801,7 @@ int cpqhp_save_used_resources (struct controller *ctrl, struct pci_func * func) func->mem_head = mem_node; } - // Save prefetchable memory base and Limit registers + /* Save prefetchable memory base and Limit registers */ pci_bus_read_config_word(pci_bus, devfn, PCI_PREF_MEMORY_BASE, &w_base); pci_bus_read_config_word(pci_bus, devfn, PCI_PREF_MEMORY_LIMIT, &w_length); @@ -802,7 +816,7 @@ int cpqhp_save_used_resources (struct controller *ctrl, struct pci_func * func) p_mem_node->next = func->p_mem_head; func->p_mem_head = p_mem_node; } - // Figure out IO and memory base lengths + /* Figure out IO and memory base lengths */ for (cloop = 0x10; cloop <= 0x14; cloop += 4) { pci_bus_read_config_dword (pci_bus, devfn, cloop, &save_base); @@ -812,11 +826,14 @@ int cpqhp_save_used_resources (struct controller *ctrl, struct pci_func * func) temp_register = base; - if (base) { // If this register is implemented + /* If this register is implemented */ + if (base) { if (((base & 0x03L) == 0x01) && (save_command & 0x01)) { - // IO base - // set temp_register = amount of IO space requested + /* IO base + * set temp_register = amount + * of IO space requested + */ temp_register = base & 0xFFFFFFFE; temp_register = (~temp_register) + 1; @@ -834,7 +851,7 @@ int cpqhp_save_used_resources (struct controller *ctrl, struct pci_func * func) } else if (((base & 0x0BL) == 0x08) && (save_command & 0x02)) { - // prefetchable memory base + /* prefetchable memory base */ temp_register = base & 0xFFFFFFF0; temp_register = (~temp_register) + 1; @@ -851,7 +868,7 @@ int cpqhp_save_used_resources (struct controller *ctrl, struct pci_func * func) } else if (((base & 0x0BL) == 0x00) && (save_command & 0x02)) { - // prefetchable memory base + /* prefetchable memory base */ temp_register = base & 0xFFFFFFF0; temp_register = (~temp_register) + 1; @@ -868,9 +885,10 @@ int cpqhp_save_used_resources (struct controller *ctrl, struct pci_func * func) } else return(1); } - } // End of base register loop - } else if ((header_type & 0x7F) == 0x00) { // Standard header - // Figure out IO and memory base lengths + } /* End of base register loop */ + /* Standard header */ + } else if ((header_type & 0x7F) == 0x00) { + /* Figure out IO and memory base lengths */ for (cloop = 0x10; cloop <= 0x24; cloop += 4) { pci_bus_read_config_dword(pci_bus, devfn, cloop, &save_base); @@ -880,11 +898,14 @@ int cpqhp_save_used_resources (struct controller *ctrl, struct pci_func * func) temp_register = base; - if (base) { // If this register is implemented + /* If this register is implemented */ + if (base) { if (((base & 0x03L) == 0x01) && (save_command & 0x01)) { - // IO base - // set temp_register = amount of IO space requested + /* IO base + * set temp_register = amount + * of IO space requested + */ temp_register = base & 0xFFFFFFFE; temp_register = (~temp_register) + 1; @@ -901,7 +922,7 @@ int cpqhp_save_used_resources (struct controller *ctrl, struct pci_func * func) } else if (((base & 0x0BL) == 0x08) && (save_command & 0x02)) { - // prefetchable memory base + /* prefetchable memory base */ temp_register = base & 0xFFFFFFF0; temp_register = (~temp_register) + 1; @@ -918,7 +939,7 @@ int cpqhp_save_used_resources (struct controller *ctrl, struct pci_func * func) } else if (((base & 0x0BL) == 0x00) && (save_command & 0x02)) { - // prefetchable memory base + /* prefetchable memory base */ temp_register = base & 0xFFFFFFF0; temp_register = (~temp_register) + 1; @@ -935,11 +956,12 @@ int cpqhp_save_used_resources (struct controller *ctrl, struct pci_func * func) } else return(1); } - } // End of base register loop - } else { // Some other unknown header type + } /* End of base register loop */ + /* Some other unknown header type */ + } else { } - // find the next device in this slot + /* find the next device in this slot */ func = cpqhp_slot_find(func->bus, func->device, index++); } @@ -975,16 +997,17 @@ int cpqhp_configure_board(struct controller *ctrl, struct pci_func * func) pci_bus->number = func->bus; devfn = PCI_DEVFN(func->device, func->function); - // Start at the top of config space so that the control - // registers are programmed last + /* Start at the top of config space so that the control + * registers are programmed last + */ for (cloop = 0x3C; cloop > 0; cloop -= 4) { pci_bus_write_config_dword (pci_bus, devfn, cloop, func->config_space[cloop >> 2]); } pci_bus_read_config_byte (pci_bus, devfn, PCI_HEADER_TYPE, &header_type); - // If this is a bridge device, restore subordinate devices - if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { // PCI-PCI Bridge + /* If this is a bridge device, restore subordinate devices */ + if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { pci_bus_read_config_byte (pci_bus, devfn, PCI_SECONDARY_BUS, &secondary_bus); sub_bus = (int) secondary_bus; @@ -1000,8 +1023,9 @@ int cpqhp_configure_board(struct controller *ctrl, struct pci_func * func) } } else { - // Check all the base Address Registers to make sure - // they are the same. If not, the board is different. + /* Check all the base Address Registers to make sure + * they are the same. If not, the board is different. + */ for (cloop = 16; cloop < 40; cloop += 4) { pci_bus_read_config_dword (pci_bus, devfn, cloop, &temp); @@ -1058,27 +1082,28 @@ int cpqhp_valid_replace(struct controller *ctrl, struct pci_func * func) pci_bus_read_config_dword (pci_bus, devfn, PCI_VENDOR_ID, &temp_register); - // No adapter present + /* No adapter present */ if (temp_register == 0xFFFFFFFF) return(NO_ADAPTER_PRESENT); if (temp_register != func->config_space[0]) return(ADAPTER_NOT_SAME); - // Check for same revision number and class code + /* Check for same revision number and class code */ pci_bus_read_config_dword (pci_bus, devfn, PCI_CLASS_REVISION, &temp_register); - // Adapter not the same + /* Adapter not the same */ if (temp_register != func->config_space[0x08 >> 2]) return(ADAPTER_NOT_SAME); - // Check for Bridge + /* Check for Bridge */ pci_bus_read_config_byte (pci_bus, devfn, PCI_HEADER_TYPE, &header_type); - if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { // PCI-PCI Bridge - // In order to continue checking, we must program the - // bus registers in the bridge to respond to accesses - // for it's subordinate bus(es) + if ((header_type & 0x7F) == PCI_HEADER_TYPE_BRIDGE) { + /* In order to continue checking, we must program the + * bus registers in the bridge to respond to accesses + * for its subordinate bus(es) + */ temp_register = func->config_space[0x18 >> 2]; pci_bus_write_config_dword (pci_bus, devfn, PCI_PRIMARY_BUS, temp_register); @@ -1096,35 +1121,39 @@ int cpqhp_valid_replace(struct controller *ctrl, struct pci_func * func) } } - // Check to see if it is a standard config header + /* Check to see if it is a standard config header */ else if ((header_type & 0x7F) == PCI_HEADER_TYPE_NORMAL) { - // Check subsystem vendor and ID + /* Check subsystem vendor and ID */ pci_bus_read_config_dword (pci_bus, devfn, PCI_SUBSYSTEM_VENDOR_ID, &temp_register); if (temp_register != func->config_space[0x2C >> 2]) { - // If it's a SMART-2 and the register isn't filled - // in, ignore the difference because - // they just have an old rev of the firmware - + /* If it's a SMART-2 and the register isn't + * filled in, ignore the difference because + * they just have an old rev of the firmware + */ if (!((func->config_space[0] == 0xAE100E11) && (temp_register == 0x00L))) return(ADAPTER_NOT_SAME); } - // Figure out IO and memory base lengths + /* Figure out IO and memory base lengths */ for (cloop = 0x10; cloop <= 0x24; cloop += 4) { temp_register = 0xFFFFFFFF; pci_bus_write_config_dword (pci_bus, devfn, cloop, temp_register); pci_bus_read_config_dword (pci_bus, devfn, cloop, &base); - if (base) { // If this register is implemented + + /* If this register is implemented */ + if (base) { if (base & 0x01L) { - // IO base - // set base = amount of IO space requested + /* IO base + * set base = amount of IO + * space requested + */ base = base & 0xFFFFFFFE; base = (~base) + 1; type = 1; } else { - // memory base + /* memory base */ base = base & 0xFFFFFFF0; base = (~base) + 1; @@ -1135,23 +1164,24 @@ int cpqhp_valid_replace(struct controller *ctrl, struct pci_func * func) type = 0; } - // Check information in slot structure + /* Check information in slot structure */ if (func->base_length[(cloop - 0x10) >> 2] != base) return(ADAPTER_NOT_SAME); if (func->base_type[(cloop - 0x10) >> 2] != type) return(ADAPTER_NOT_SAME); - } // End of base register loop + } /* End of base register loop */ - } // End of (type 0 config space) else + } /* End of (type 0 config space) else */ else { - // this is not a type 0 or 1 config space header so - // we don't know how to do it + /* this is not a type 0 or 1 config space header so + * we don't know how to do it + */ return(DEVICE_TYPE_NOT_SUPPORTED); } - // Get the next function + /* Get the next function */ func = cpqhp_slot_find(func->bus, func->device, index++); } @@ -1190,7 +1220,7 @@ int cpqhp_find_available_resources(struct controller *ctrl, void __iomem *rom_st if (rom_resource_table == NULL) { return -ENODEV; } - // Sum all resources and setup resource maps + /* Sum all resources and setup resource maps */ unused_IRQ = readl(rom_resource_table + UNUSED_IRQ); dbg("unused_IRQ = %x\n", unused_IRQ); @@ -1262,13 +1292,13 @@ int cpqhp_find_available_resources(struct controller *ctrl, void __iomem *rom_st dev_func, io_base, io_length, mem_base, mem_length, pre_mem_base, pre_mem_length, primary_bus, secondary_bus, max_bus); - // If this entry isn't for our controller's bus, ignore it + /* If this entry isn't for our controller's bus, ignore it */ if (primary_bus != ctrl->bus) { i--; one_slot += sizeof (struct slot_rt); continue; } - // find out if this entry is for an occupied slot + /* find out if this entry is for an occupied slot */ ctrl->pci_bus->number = primary_bus; pci_bus_read_config_dword (ctrl->pci_bus, dev_func, PCI_VENDOR_ID, &temp_dword); dbg("temp_D_word = %x\n", temp_dword); @@ -1282,13 +1312,13 @@ int cpqhp_find_available_resources(struct controller *ctrl, void __iomem *rom_st func = cpqhp_slot_find(primary_bus, dev_func >> 3, index++); } - // If we can't find a match, skip this table entry + /* If we can't find a match, skip this table entry */ if (!func) { i--; one_slot += sizeof (struct slot_rt); continue; } - // this may not work and shouldn't be used + /* this may not work and shouldn't be used */ if (secondary_bus != primary_bus) bridged_slot = 1; else @@ -1301,7 +1331,7 @@ int cpqhp_find_available_resources(struct controller *ctrl, void __iomem *rom_st } - // If we've got a valid IO base, use it + /* If we've got a valid IO base, use it */ temp_dword = io_base + io_length; @@ -1325,7 +1355,7 @@ int cpqhp_find_available_resources(struct controller *ctrl, void __iomem *rom_st } } - // If we've got a valid memory base, use it + /* If we've got a valid memory base, use it */ temp_dword = mem_base + mem_length; if ((mem_base) && (temp_dword < 0x10000)) { mem_node = kmalloc(sizeof(*mem_node), GFP_KERNEL); @@ -1348,8 +1378,9 @@ int cpqhp_find_available_resources(struct controller *ctrl, void __iomem *rom_st } } - // If we've got a valid prefetchable memory base, and - // the base + length isn't greater than 0xFFFF + /* If we've got a valid prefetchable memory base, and + * the base + length isn't greater than 0xFFFF + */ temp_dword = pre_mem_base + pre_mem_length; if ((pre_mem_base) && (temp_dword < 0x10000)) { p_mem_node = kmalloc(sizeof(*p_mem_node), GFP_KERNEL); @@ -1372,9 +1403,10 @@ int cpqhp_find_available_resources(struct controller *ctrl, void __iomem *rom_st } } - // If we've got a valid bus number, use it - // The second condition is to ignore bus numbers on - // populated slots that don't have PCI-PCI bridges + /* If we've got a valid bus number, use it + * The second condition is to ignore bus numbers on + * populated slots that don't have PCI-PCI bridges + */ if (secondary_bus && (secondary_bus != primary_bus)) { bus_node = kmalloc(sizeof(*bus_node), GFP_KERNEL); if (!bus_node) @@ -1398,8 +1430,9 @@ int cpqhp_find_available_resources(struct controller *ctrl, void __iomem *rom_st one_slot += sizeof (struct slot_rt); } - // If all of the following fail, we don't have any resources for - // hot plug add + /* If all of the following fail, we don't have any resources for + * hot plug add + */ rc = 1; rc &= cpqhp_resource_sort_and_combine(&(ctrl->mem_head)); rc &= cpqhp_resource_sort_and_combine(&(ctrl->p_mem_head)); -- cgit v1.2.3-70-g09d2 From 86a58023e4078a843f8ca8a9b6fa23542d881f99 Mon Sep 17 00:00:00 2001 From: Alex Chiang Date: Tue, 31 Mar 2009 09:23:21 -0600 Subject: PCI Hotplug: cpqphp: obey 80 column convention in cpqphp.h Clean up cpqphp.h to follow 80 column convention. Signed-off-by: Alex Chiang Signed-off-by: Jesse Barnes --- drivers/pci/hotplug/cpqphp.h | 76 ++++++++++++++++++++++++++------------------ 1 file changed, 45 insertions(+), 31 deletions(-) (limited to 'drivers/pci/hotplug/cpqphp.h') diff --git a/drivers/pci/hotplug/cpqphp.h b/drivers/pci/hotplug/cpqphp.h index e15d657368f..308f82b1fc9 100644 --- a/drivers/pci/hotplug/cpqphp.h +++ b/drivers/pci/hotplug/cpqphp.h @@ -405,40 +405,50 @@ struct resource_lists { /* debugfs functions for the hotplug controller info */ -extern void cpqhp_initialize_debugfs (void); -extern void cpqhp_shutdown_debugfs (void); -extern void cpqhp_create_debugfs_files (struct controller *ctrl); -extern void cpqhp_remove_debugfs_files (struct controller *ctrl); +extern void cpqhp_initialize_debugfs(void); +extern void cpqhp_shutdown_debugfs(void); +extern void cpqhp_create_debugfs_files(struct controller *ctrl); +extern void cpqhp_remove_debugfs_files(struct controller *ctrl); /* controller functions */ -extern void cpqhp_pushbutton_thread (unsigned long event_pointer); -extern irqreturn_t cpqhp_ctrl_intr (int IRQ, void *data); -extern int cpqhp_find_available_resources (struct controller *ctrl, void __iomem *rom_start); -extern int cpqhp_event_start_thread (void); -extern void cpqhp_event_stop_thread (void); -extern struct pci_func *cpqhp_slot_create (unsigned char busnumber); -extern struct pci_func *cpqhp_slot_find (unsigned char bus, unsigned char device, unsigned char index); -extern int cpqhp_process_SI (struct controller *ctrl, struct pci_func *func); -extern int cpqhp_process_SS (struct controller *ctrl, struct pci_func *func); -extern int cpqhp_hardware_test (struct controller *ctrl, int test_num); +extern void cpqhp_pushbutton_thread(unsigned long event_pointer); +extern irqreturn_t cpqhp_ctrl_intr(int IRQ, void *data); +extern int cpqhp_find_available_resources(struct controller *ctrl, + void __iomem *rom_start); +extern int cpqhp_event_start_thread(void); +extern void cpqhp_event_stop_thread(void); +extern struct pci_func *cpqhp_slot_create(unsigned char busnumber); +extern struct pci_func *cpqhp_slot_find(unsigned char bus, unsigned char device, + unsigned char index); +extern int cpqhp_process_SI(struct controller *ctrl, struct pci_func *func); +extern int cpqhp_process_SS(struct controller *ctrl, struct pci_func *func); +extern int cpqhp_hardware_test(struct controller *ctrl, int test_num); /* resource functions */ extern int cpqhp_resource_sort_and_combine (struct pci_resource **head); /* pci functions */ -extern int cpqhp_set_irq (u8 bus_num, u8 dev_num, u8 int_pin, u8 irq_num); -extern int cpqhp_get_bus_dev (struct controller *ctrl, u8 *bus_num, u8 *dev_num, u8 slot); -extern int cpqhp_save_config (struct controller *ctrl, int busnumber, int is_hot_plug); -extern int cpqhp_save_base_addr_length (struct controller *ctrl, struct pci_func * func); -extern int cpqhp_save_used_resources (struct controller *ctrl, struct pci_func * func); -extern int cpqhp_configure_board (struct controller *ctrl, struct pci_func * func); -extern int cpqhp_save_slot_config (struct controller *ctrl, struct pci_func * new_slot); -extern int cpqhp_valid_replace (struct controller *ctrl, struct pci_func * func); -extern void cpqhp_destroy_board_resources (struct pci_func * func); -extern int cpqhp_return_board_resources (struct pci_func * func, struct resource_lists * resources); -extern void cpqhp_destroy_resource_list (struct resource_lists * resources); -extern int cpqhp_configure_device (struct controller* ctrl, struct pci_func* func); -extern int cpqhp_unconfigure_device (struct pci_func* func); +extern int cpqhp_set_irq(u8 bus_num, u8 dev_num, u8 int_pin, u8 irq_num); +extern int cpqhp_get_bus_dev(struct controller *ctrl, u8 *bus_num, u8 *dev_num, + u8 slot); +extern int cpqhp_save_config(struct controller *ctrl, int busnumber, + int is_hot_plug); +extern int cpqhp_save_base_addr_length(struct controller *ctrl, + struct pci_func *func); +extern int cpqhp_save_used_resources(struct controller *ctrl, + struct pci_func *func); +extern int cpqhp_configure_board(struct controller *ctrl, + struct pci_func *func); +extern int cpqhp_save_slot_config(struct controller *ctrl, + struct pci_func *new_slot); +extern int cpqhp_valid_replace(struct controller *ctrl, struct pci_func *func); +extern void cpqhp_destroy_board_resources(struct pci_func *func); +extern int cpqhp_return_board_resources (struct pci_func *func, + struct resource_lists *resources); +extern void cpqhp_destroy_resource_list(struct resource_lists *resources); +extern int cpqhp_configure_device(struct controller *ctrl, + struct pci_func *func); +extern int cpqhp_unconfigure_device(struct pci_func *func); /* Global variables */ extern int cpqhp_debug; @@ -463,7 +473,8 @@ static inline char *slot_name(struct slot *slot) * * Puts node back in the resource list pointed to by head */ -static inline void return_resource(struct pci_resource **head, struct pci_resource *node) +static inline void return_resource(struct pci_resource **head, + struct pci_resource *node) { if (!node || !head) return; @@ -673,7 +684,8 @@ static inline int get_slot_enabled(struct controller *ctrl, struct slot *slot) } -static inline int cpq_get_latch_status(struct controller *ctrl, struct slot *slot) +static inline int cpq_get_latch_status(struct controller *ctrl, + struct slot *slot) { u32 status; u8 hp_slot; @@ -688,7 +700,8 @@ static inline int cpq_get_latch_status(struct controller *ctrl, struct slot *slo } -static inline int get_presence_status(struct controller *ctrl, struct slot *slot) +static inline int get_presence_status(struct controller *ctrl, + struct slot *slot) { int presence_save = 0; u8 hp_slot; @@ -697,7 +710,8 @@ static inline int get_presence_status(struct controller *ctrl, struct slot *slot hp_slot = slot->device - ctrl->slot_device_offset; tempdword = readl(ctrl->hpc_reg + INT_INPUT_CLEAR); - presence_save = (int) ((((~tempdword) >> 23) | ((~tempdword) >> 15)) >> hp_slot) & 0x02; + presence_save = (int) ((((~tempdword) >> 23) | ((~tempdword) >> 15)) + >> hp_slot) & 0x02; return presence_save; } -- cgit v1.2.3-70-g09d2 From b019ee679afde950f2d01b1af0530453aa60af3f Mon Sep 17 00:00:00 2001 From: Alex Chiang Date: Tue, 31 Mar 2009 09:24:02 -0600 Subject: PCI Hotplug: cpqphp: clean up accesses to pcibios_get_irq_routing_table() Instead of making multiple calls to pcibios_get_irq_routing_table, let's just do it once and save the answer. The reason we were making multiple calls is because we liked to calculate its length and perform some loop over it. Instead of open-coding the length calculation every time, provide it in an inline helper function. Finally, since pci_print_IRQ_route() is used only for debug, let's only do it when cpqhp_debug is set. Signed-off-by: Alex Chiang Signed-off-by: Jesse Barnes --- drivers/pci/hotplug/cpqphp.h | 9 +++++ drivers/pci/hotplug/cpqphp_core.c | 72 +++++++++++++++++---------------------- drivers/pci/hotplug/cpqphp_pci.c | 36 ++++---------------- 3 files changed, 47 insertions(+), 70 deletions(-) (limited to 'drivers/pci/hotplug/cpqphp.h') diff --git a/drivers/pci/hotplug/cpqphp.h b/drivers/pci/hotplug/cpqphp.h index 308f82b1fc9..1d5561c6bad 100644 --- a/drivers/pci/hotplug/cpqphp.h +++ b/drivers/pci/hotplug/cpqphp.h @@ -455,6 +455,7 @@ extern int cpqhp_debug; extern int cpqhp_legacy_mode; extern struct controller *cpqhp_ctrl_list; extern struct pci_func *cpqhp_slot_list[256]; +extern struct irq_routing_table *cpqhp_routing_table; /* these can be gotten rid of, but for debugging they are purty */ extern u8 cpqhp_nic_irq; @@ -733,4 +734,12 @@ static inline int wait_for_ctrl_irq(struct controller *ctrl) return retval; } +#include +static inline int cpqhp_routing_table_length(void) +{ + BUG_ON(cpqhp_routing_table == NULL); + return ((cpqhp_routing_table->size - sizeof(struct irq_routing_table)) / + sizeof(struct irq_info)); +} + #endif diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c index 857e466df71..7888b37c6c8 100644 --- a/drivers/pci/hotplug/cpqphp_core.c +++ b/drivers/pci/hotplug/cpqphp_core.c @@ -44,7 +44,6 @@ #include "cpqphp.h" #include "cpqphp_nvram.h" -#include /* Global variables */ @@ -52,6 +51,7 @@ int cpqhp_debug; int cpqhp_legacy_mode; struct controller *cpqhp_ctrl_list; /* = NULL */ struct pci_func *cpqhp_slot_list[256]; +struct irq_routing_table *cpqhp_routing_table; /* local variables */ static void __iomem *smbios_table; @@ -154,40 +154,42 @@ static int init_SERR(struct controller * ctrl) return 0; } -/* nice debugging output */ -static int pci_print_IRQ_route (void) +static int init_cpqhp_routing_table(void) { - struct irq_routing_table *routing_table; int len; - int loop; - - u8 tbus, tdevice, tslot; - routing_table = pcibios_get_irq_routing_table(); - if (routing_table == NULL) { - err("No BIOS Routing Table??? Not good\n"); + cpqhp_routing_table = pcibios_get_irq_routing_table(); + if (cpqhp_routing_table == NULL) return -ENOMEM; - } - len = (routing_table->size - sizeof(struct irq_routing_table)) / - sizeof(struct irq_info); - /* Make sure I got at least one entry */ + len = cpqhp_routing_table_length(); if (len == 0) { - kfree(routing_table); + kfree(cpqhp_routing_table); + cpqhp_routing_table = NULL; return -1; } - dbg("bus dev func slot\n"); + return 0; +} + +/* nice debugging output */ +static void pci_print_IRQ_route(void) +{ + int len; + int loop; + u8 tbus, tdevice, tslot; + + len = cpqhp_routing_table_length(); + dbg("bus dev func slot\n"); for (loop = 0; loop < len; ++loop) { - tbus = routing_table->slots[loop].bus; - tdevice = routing_table->slots[loop].devfn; - tslot = routing_table->slots[loop].slot; + tbus = cpqhp_routing_table->slots[loop].bus; + tdevice = cpqhp_routing_table->slots[loop].devfn; + tslot = cpqhp_routing_table->slots[loop].slot; dbg("%d %d %d %d\n", tbus, tdevice >> 3, tdevice & 0x7, tslot); } - kfree(routing_table); - return 0; + return; } @@ -331,7 +333,6 @@ static int ctrl_slot_cleanup (struct controller * ctrl) static int get_slot_mapping(struct pci_bus *bus, u8 bus_num, u8 dev_num, u8 *slot) { - struct irq_routing_table *PCIIRQRoutingInfoLength; u32 work; long len; long loop; @@ -342,26 +343,14 @@ get_slot_mapping(struct pci_bus *bus, u8 bus_num, u8 dev_num, u8 *slot) bridgeSlot = 0xFF; - PCIIRQRoutingInfoLength = pcibios_get_irq_routing_table(); - if (!PCIIRQRoutingInfoLength) - return -1; - - len = (PCIIRQRoutingInfoLength->size - - sizeof(struct irq_routing_table)) / sizeof(struct irq_info); - /* Make sure I got at least one entry */ - if (len == 0) { - kfree(PCIIRQRoutingInfoLength); - return -1; - } - + len = cpqhp_routing_table_length(); for (loop = 0; loop < len; ++loop) { - tbus = PCIIRQRoutingInfoLength->slots[loop].bus; - tdevice = PCIIRQRoutingInfoLength->slots[loop].devfn >> 3; - tslot = PCIIRQRoutingInfoLength->slots[loop].slot; + tbus = cpqhp_routing_table->slots[loop].bus; + tdevice = cpqhp_routing_table->slots[loop].devfn >> 3; + tslot = cpqhp_routing_table->slots[loop].slot; if ((tbus == bus_num) && (tdevice == dev_num)) { *slot = tslot; - kfree(PCIIRQRoutingInfoLength); return 0; } else { /* Did not get a match on the target PCI device. Check @@ -396,10 +385,8 @@ get_slot_mapping(struct pci_bus *bus, u8 bus_num, u8 dev_num, u8 *slot) */ if (bridgeSlot != 0xFF) { *slot = bridgeSlot; - kfree(PCIIRQRoutingInfoLength); return 0; } - kfree(PCIIRQRoutingInfoLength); /* Couldn't find an entry in the routing table for this PCI device */ return -1; } @@ -782,10 +769,13 @@ static int one_time_init(void) power_mode = 0; - retval = pci_print_IRQ_route(); + retval = init_cpqhp_routing_table(); if (retval) goto error; + if (cpqhp_debug) + pci_print_IRQ_route(); + dbg("Initialize + Start the notification mechanism \n"); retval = cpqhp_event_start_thread(); diff --git a/drivers/pci/hotplug/cpqphp_pci.c b/drivers/pci/hotplug/cpqphp_pci.c index 2909e3f6caa..6201281b9da 100644 --- a/drivers/pci/hotplug/cpqphp_pci.c +++ b/drivers/pci/hotplug/cpqphp_pci.c @@ -37,7 +37,6 @@ #include "../pci.h" #include "cpqphp.h" #include "cpqphp_nvram.h" -#include u8 cpqhp_nic_irq; @@ -244,39 +243,23 @@ static int PCI_ScanBusForNonBridge(struct controller *ctrl, u8 bus_num, u8 * dev static int PCI_GetBusDevHelper(struct controller *ctrl, u8 *bus_num, u8 *dev_num, u8 slot, u8 nobridge) { - struct irq_routing_table *PCIIRQRoutingInfoLength; - long len; - long loop; + int loop, len; u32 work; - u8 tbus, tdevice, tslot; - PCIIRQRoutingInfoLength = pcibios_get_irq_routing_table(); - if (!PCIIRQRoutingInfoLength) - return -1; - - len = (PCIIRQRoutingInfoLength->size - - sizeof(struct irq_routing_table)) / sizeof(struct irq_info); - /* Make sure I got at least one entry */ - if (len == 0) { - kfree(PCIIRQRoutingInfoLength ); - return -1; - } - + len = cpqhp_routing_table_length(); for (loop = 0; loop < len; ++loop) { - tbus = PCIIRQRoutingInfoLength->slots[loop].bus; - tdevice = PCIIRQRoutingInfoLength->slots[loop].devfn; - tslot = PCIIRQRoutingInfoLength->slots[loop].slot; + tbus = cpqhp_routing_table->slots[loop].bus; + tdevice = cpqhp_routing_table->slots[loop].devfn; + tslot = cpqhp_routing_table->slots[loop].slot; if (tslot == slot) { *bus_num = tbus; *dev_num = tdevice; ctrl->pci_bus->number = tbus; pci_bus_read_config_dword (ctrl->pci_bus, *dev_num, PCI_VENDOR_ID, &work); - if (!nobridge || (work == 0xffffffff)) { - kfree(PCIIRQRoutingInfoLength ); + if (!nobridge || (work == 0xffffffff)) return 0; - } dbg("bus_num %d devfn %d\n", *bus_num, *dev_num); pci_bus_read_config_dword (ctrl->pci_bus, *dev_num, PCI_CLASS_REVISION, &work); @@ -287,17 +270,12 @@ static int PCI_GetBusDevHelper(struct controller *ctrl, u8 *bus_num, u8 *dev_num dbg("Scan bus for Non Bridge: bus %d\n", tbus); if (PCI_ScanBusForNonBridge(ctrl, tbus, dev_num) == 0) { *bus_num = tbus; - kfree(PCIIRQRoutingInfoLength ); return 0; } - } else { - kfree(PCIIRQRoutingInfoLength ); + } else return 0; - } - } } - kfree(PCIIRQRoutingInfoLength ); return -1; } -- cgit v1.2.3-70-g09d2 From 6d1e87daeeba864a18535b7f3aed0e65f5f52275 Mon Sep 17 00:00:00 2001 From: Alex Chiang Date: Tue, 31 Mar 2009 09:24:12 -0600 Subject: PCI Hotplug: cpqphp: constify slot_name() Eliminate this warning: warning: return discards qualifiers from pointer target type Signed-off-by: Alex Chiang Signed-off-by: Jesse Barnes --- drivers/pci/hotplug/cpqphp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/pci/hotplug/cpqphp.h') diff --git a/drivers/pci/hotplug/cpqphp.h b/drivers/pci/hotplug/cpqphp.h index 1d5561c6bad..53836001d51 100644 --- a/drivers/pci/hotplug/cpqphp.h +++ b/drivers/pci/hotplug/cpqphp.h @@ -464,7 +464,7 @@ extern u8 cpqhp_disk_irq; /* inline functions */ -static inline char *slot_name(struct slot *slot) +static inline const char *slot_name(struct slot *slot) { return hotplug_slot_name(slot->hotplug_slot); } -- cgit v1.2.3-70-g09d2