diff options
Diffstat (limited to 'drivers')
33 files changed, 902 insertions, 222 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index ab686b31010..a34a2284100 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -47,6 +47,23 @@ config ACPI_SLEEP depends on SUSPEND || HIBERNATION default y +config ACPI_PROCFS_POWER + bool "Deprecated power /proc/acpi directories" + depends on PROC_FS + help + For backwards compatibility, this option allows + deprecated power /proc/acpi/ directories to exist, even when + they have been replaced by functions in /sys. + The deprecated directories (and their replacements) include: + /proc/acpi/battery/* (/sys/class/power_supply/*) + /proc/acpi/ac_adapter/* (sys/class/power_supply/*) + This option has no effect on /proc/acpi/ directories + and functions, which do not yet exist in /sys + This option, together with the proc directories, will be + deleted in the future. + + Say N to delete power /proc/acpi/ directories that have moved to /sys/ + config ACPI_EC_DEBUGFS tristate "EC read/write access through /sys/kernel/debug/ec" default n diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index 0331f91d56e..bce34afadcd 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -47,6 +47,7 @@ acpi-y += sysfs.o acpi-$(CONFIG_X86) += acpi_cmos_rtc.o acpi-$(CONFIG_DEBUG_FS) += debugfs.o acpi-$(CONFIG_ACPI_NUMA) += numa.o +acpi-$(CONFIG_ACPI_PROCFS_POWER) += cm_sbs.o ifdef CONFIG_ACPI_VIDEO acpi-y += video_detect.o endif diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index 2c01c1da29c..c67f6f5ad61 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -52,11 +52,39 @@ MODULE_AUTHOR("Paul Diefenbaugh"); MODULE_DESCRIPTION("ACPI AC Adapter Driver"); MODULE_LICENSE("GPL"); +static int acpi_ac_add(struct acpi_device *device); +static int acpi_ac_remove(struct acpi_device *device); +static void acpi_ac_notify(struct acpi_device *device, u32 event); + +static const struct acpi_device_id ac_device_ids[] = { + {"ACPI0003", 0}, + {"", 0}, +}; +MODULE_DEVICE_TABLE(acpi, ac_device_ids); + +#ifdef CONFIG_PM_SLEEP +static int acpi_ac_resume(struct device *dev); +#endif +static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume); + static int ac_sleep_before_get_state_ms; +static struct acpi_driver acpi_ac_driver = { + .name = "ac", + .class = ACPI_AC_CLASS, + .ids = ac_device_ids, + .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, + .ops = { + .add = acpi_ac_add, + .remove = acpi_ac_remove, + .notify = acpi_ac_notify, + }, + .drv.pm = &acpi_ac_pm, +}; + struct acpi_ac { struct power_supply charger; - struct platform_device *pdev; + struct acpi_device * device; unsigned long long state; struct notifier_block battery_nb; }; @@ -69,10 +97,12 @@ struct acpi_ac { static int acpi_ac_get_state(struct acpi_ac *ac) { - acpi_status status; - acpi_handle handle = ACPI_HANDLE(&ac->pdev->dev); + acpi_status status = AE_OK; + + if (!ac) + return -EINVAL; - status = acpi_evaluate_integer(handle, "_PSR", NULL, + status = acpi_evaluate_integer(ac->device->handle, "_PSR", NULL, &ac->state); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, @@ -117,10 +147,9 @@ static enum power_supply_property ac_props[] = { Driver Model -------------------------------------------------------------------------- */ -static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data) +static void acpi_ac_notify(struct acpi_device *device, u32 event) { - struct acpi_ac *ac = data; - struct acpi_device *adev; + struct acpi_ac *ac = acpi_driver_data(device); if (!ac) return; @@ -143,11 +172,10 @@ static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data) msleep(ac_sleep_before_get_state_ms); acpi_ac_get_state(ac); - adev = ACPI_COMPANION(&ac->pdev->dev); - acpi_bus_generate_netlink_event(adev->pnp.device_class, - dev_name(&ac->pdev->dev), - event, (u32) ac->state); - acpi_notifier_call_chain(adev, event, (u32) ac->state); + acpi_bus_generate_netlink_event(device->pnp.device_class, + dev_name(&device->dev), event, + (u32) ac->state); + acpi_notifier_call_chain(device, event, (u32) ac->state); kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE); } @@ -192,49 +220,39 @@ static struct dmi_system_id ac_dmi_table[] = { {}, }; -static int acpi_ac_probe(struct platform_device *pdev) +static int acpi_ac_add(struct acpi_device *device) { int result = 0; struct acpi_ac *ac = NULL; - struct acpi_device *adev; - if (!pdev) - return -EINVAL; - adev = ACPI_COMPANION(&pdev->dev); - if (!adev) - return -ENODEV; + if (!device) + return -EINVAL; ac = kzalloc(sizeof(struct acpi_ac), GFP_KERNEL); if (!ac) return -ENOMEM; - strcpy(acpi_device_name(adev), ACPI_AC_DEVICE_NAME); - strcpy(acpi_device_class(adev), ACPI_AC_CLASS); - ac->pdev = pdev; - platform_set_drvdata(pdev, ac); + ac->device = device; + strcpy(acpi_device_name(device), ACPI_AC_DEVICE_NAME); + strcpy(acpi_device_class(device), ACPI_AC_CLASS); + device->driver_data = ac; result = acpi_ac_get_state(ac); if (result) goto end; - ac->charger.name = acpi_device_bid(adev); + ac->charger.name = acpi_device_bid(device); ac->charger.type = POWER_SUPPLY_TYPE_MAINS; ac->charger.properties = ac_props; ac->charger.num_properties = ARRAY_SIZE(ac_props); ac->charger.get_property = get_ac_property; - result = power_supply_register(&pdev->dev, &ac->charger); + result = power_supply_register(&ac->device->dev, &ac->charger); if (result) goto end; - result = acpi_install_notify_handler(ACPI_HANDLE(&pdev->dev), - ACPI_ALL_NOTIFY, acpi_ac_notify_handler, ac); - if (result) { - power_supply_unregister(&ac->charger); - goto end; - } printk(KERN_INFO PREFIX "%s [%s] (%s)\n", - acpi_device_name(adev), acpi_device_bid(adev), + acpi_device_name(device), acpi_device_bid(device), ac->state ? "on-line" : "off-line"); ac->battery_nb.notifier_call = acpi_ac_battery_notify; @@ -256,7 +274,7 @@ static int acpi_ac_resume(struct device *dev) if (!dev) return -EINVAL; - ac = platform_get_drvdata(to_platform_device(dev)); + ac = acpi_driver_data(to_acpi_device(dev)); if (!ac) return -EINVAL; @@ -270,19 +288,17 @@ static int acpi_ac_resume(struct device *dev) #else #define acpi_ac_resume NULL #endif -static SIMPLE_DEV_PM_OPS(acpi_ac_pm_ops, NULL, acpi_ac_resume); -static int acpi_ac_remove(struct platform_device *pdev) +static int acpi_ac_remove(struct acpi_device *device) { - struct acpi_ac *ac; + struct acpi_ac *ac = NULL; + - if (!pdev) + if (!device || !acpi_driver_data(device)) return -EINVAL; - acpi_remove_notify_handler(ACPI_HANDLE(&pdev->dev), - ACPI_ALL_NOTIFY, acpi_ac_notify_handler); + ac = acpi_driver_data(device); - ac = platform_get_drvdata(pdev); if (ac->charger.dev) power_supply_unregister(&ac->charger); unregister_acpi_notifier(&ac->battery_nb); @@ -292,23 +308,6 @@ static int acpi_ac_remove(struct platform_device *pdev) return 0; } -static const struct acpi_device_id acpi_ac_match[] = { - { "ACPI0003", 0 }, - { } -}; -MODULE_DEVICE_TABLE(acpi, acpi_ac_match); - -static struct platform_driver acpi_ac_driver = { - .probe = acpi_ac_probe, - .remove = acpi_ac_remove, - .driver = { - .name = "acpi-ac", - .owner = THIS_MODULE, - .pm = &acpi_ac_pm_ops, - .acpi_match_table = ACPI_PTR(acpi_ac_match), - }, -}; - static int __init acpi_ac_init(void) { int result; @@ -316,7 +315,7 @@ static int __init acpi_ac_init(void) if (acpi_disabled) return -ENODEV; - result = platform_driver_register(&acpi_ac_driver); + result = acpi_bus_register_driver(&acpi_ac_driver); if (result < 0) return -ENODEV; @@ -325,7 +324,7 @@ static int __init acpi_ac_init(void) static void __exit acpi_ac_exit(void) { - platform_driver_unregister(&acpi_ac_driver); + acpi_bus_unregister_driver(&acpi_ac_driver); } module_init(acpi_ac_init); module_exit(acpi_ac_exit); diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c index dbfe49e5fd6..1d4950388fa 100644 --- a/drivers/acpi/acpi_platform.c +++ b/drivers/acpi/acpi_platform.c @@ -29,7 +29,6 @@ ACPI_MODULE_NAME("platform"); static const struct acpi_device_id acpi_platform_device_ids[] = { { "PNP0D40" }, - { "ACPI0003" }, { "VPC2004" }, { "BCM4752" }, diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index b06f5f55ada..52c81c49cc7 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -405,7 +405,6 @@ static int acpi_processor_add(struct acpi_device *device, goto err; pr->dev = dev; - dev->offline = pr->flags.need_hotplug_init; /* Trigger the processor driver's .probe() if present. */ if (device_attach(dev) >= 0) diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index 49bbc71fad5..a08a448068d 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -141,9 +141,9 @@ ACPI_INIT_GLOBAL(u8, acpi_gbl_do_not_use_xsdt, FALSE); * address. Although ACPICA adheres to the ACPI specification which * requires the use of the corresponding 64-bit address if it is non-zero, * some machines have been found to have a corrupted non-zero 64-bit - * address. Default is FALSE, do not favor the 32-bit addresses. + * address. Default is TRUE, favor the 32-bit addresses. */ -ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, FALSE); +ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, TRUE); /* * Optionally truncate I/O addresses to 16 bits. Provides compatibility diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c index a4702eee91a..9fb85f38de9 100644 --- a/drivers/acpi/acpica/tbutils.c +++ b/drivers/acpi/acpica/tbutils.c @@ -461,6 +461,7 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) u32 table_count; struct acpi_table_header *table; acpi_physical_address address; + acpi_physical_address rsdt_address; u32 length; u8 *table_entry; acpi_status status; @@ -488,11 +489,14 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) * as per the ACPI specification. */ address = (acpi_physical_address) rsdp->xsdt_physical_address; + rsdt_address = + (acpi_physical_address) rsdp->rsdt_physical_address; table_entry_size = ACPI_XSDT_ENTRY_SIZE; } else { /* Root table is an RSDT (32-bit physical addresses) */ address = (acpi_physical_address) rsdp->rsdt_physical_address; + rsdt_address = address; table_entry_size = ACPI_RSDT_ENTRY_SIZE; } @@ -515,8 +519,7 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) /* Fall back to the RSDT */ - address = - (acpi_physical_address) rsdp->rsdt_physical_address; + address = rsdt_address; table_entry_size = ACPI_RSDT_ENTRY_SIZE; } } diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 9a2c63b2005..6e7b2a12860 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -36,6 +36,12 @@ #include <linux/suspend.h> #include <asm/unaligned.h> +#ifdef CONFIG_ACPI_PROCFS_POWER +#include <linux/proc_fs.h> +#include <linux/seq_file.h> +#include <asm/uaccess.h> +#endif + #include <linux/acpi.h> #include <linux/power_supply.h> @@ -64,6 +70,19 @@ static unsigned int cache_time = 1000; module_param(cache_time, uint, 0644); MODULE_PARM_DESC(cache_time, "cache time in milliseconds"); +#ifdef CONFIG_ACPI_PROCFS_POWER +extern struct proc_dir_entry *acpi_lock_battery_dir(void); +extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir); + +enum acpi_battery_files { + info_tag = 0, + state_tag, + alarm_tag, + ACPI_BATTERY_NUMFILES, +}; + +#endif + static const struct acpi_device_id battery_device_ids[] = { {"PNP0C0A", 0}, {"", 0}, @@ -299,6 +318,14 @@ static enum power_supply_property energy_battery_props[] = { POWER_SUPPLY_PROP_SERIAL_NUMBER, }; +#ifdef CONFIG_ACPI_PROCFS_POWER +inline char *acpi_battery_units(struct acpi_battery *battery) +{ + return (battery->power_unit == ACPI_BATTERY_POWER_UNIT_MA) ? + "mA" : "mW"; +} +#endif + /* -------------------------------------------------------------------------- Battery Management -------------------------------------------------------------------------- */ @@ -717,6 +744,279 @@ static void acpi_battery_refresh(struct acpi_battery *battery) } /* -------------------------------------------------------------------------- + FS Interface (/proc) + -------------------------------------------------------------------------- */ + +#ifdef CONFIG_ACPI_PROCFS_POWER +static struct proc_dir_entry *acpi_battery_dir; + +static int acpi_battery_print_info(struct seq_file *seq, int result) +{ + struct acpi_battery *battery = seq->private; + + if (result) + goto end; + + seq_printf(seq, "present: %s\n", + acpi_battery_present(battery) ? "yes" : "no"); + if (!acpi_battery_present(battery)) + goto end; + if (battery->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN) + seq_printf(seq, "design capacity: unknown\n"); + else + seq_printf(seq, "design capacity: %d %sh\n", + battery->design_capacity, + acpi_battery_units(battery)); + + if (battery->full_charge_capacity == ACPI_BATTERY_VALUE_UNKNOWN) + seq_printf(seq, "last full capacity: unknown\n"); + else + seq_printf(seq, "last full capacity: %d %sh\n", + battery->full_charge_capacity, + acpi_battery_units(battery)); + + seq_printf(seq, "battery technology: %srechargeable\n", + (!battery->technology)?"non-":""); + + if (battery->design_voltage == ACPI_BATTERY_VALUE_UNKNOWN) + seq_printf(seq, "design voltage: unknown\n"); + else + seq_printf(seq, "design voltage: %d mV\n", + battery->design_voltage); + seq_printf(seq, "design capacity warning: %d %sh\n", + battery->design_capacity_warning, + acpi_battery_units(battery)); + seq_printf(seq, "design capacity low: %d %sh\n", + battery->design_capacity_low, + acpi_battery_units(battery)); + seq_printf(seq, "cycle count: %i\n", battery->cycle_count); + seq_printf(seq, "capacity granularity 1: %d %sh\n", + battery->capacity_granularity_1, + acpi_battery_units(battery)); + seq_printf(seq, "capacity granularity 2: %d %sh\n", + battery->capacity_granularity_2, + acpi_battery_units(battery)); + seq_printf(seq, "model number: %s\n", battery->model_number); + seq_printf(seq, "serial number: %s\n", battery->serial_number); + seq_printf(seq, "battery type: %s\n", battery->type); + seq_printf(seq, "OEM info: %s\n", battery->oem_info); + end: + if (result) + seq_printf(seq, "ERROR: Unable to read battery info\n"); + return result; +} + +static int acpi_battery_print_state(struct seq_file *seq, int result) +{ + struct acpi_battery *battery = seq->private; + + if (result) + goto end; + + seq_printf(seq, "present: %s\n", + acpi_battery_present(battery) ? "yes" : "no"); + if (!acpi_battery_present(battery)) + goto end; + + seq_printf(seq, "capacity state: %s\n", + (battery->state & 0x04) ? "critical" : "ok"); + if ((battery->state & 0x01) && (battery->state & 0x02)) + seq_printf(seq, + "charging state: charging/discharging\n"); + else if (battery->state & 0x01) + seq_printf(seq, "charging state: discharging\n"); + else if (battery->state & 0x02) + seq_printf(seq, "charging state: charging\n"); + else + seq_printf(seq, "charging state: charged\n"); + + if (battery->rate_now == ACPI_BATTERY_VALUE_UNKNOWN) + seq_printf(seq, "present rate: unknown\n"); + else + seq_printf(seq, "present rate: %d %s\n", + battery->rate_now, acpi_battery_units(battery)); + + if (battery->capacity_now == ACPI_BATTERY_VALUE_UNKNOWN) + seq_printf(seq, "remaining capacity: unknown\n"); + else + seq_printf(seq, "remaining capacity: %d %sh\n", + battery->capacity_now, acpi_battery_units(battery)); + if (battery->voltage_now == ACPI_BATTERY_VALUE_UNKNOWN) + seq_printf(seq, "present voltage: unknown\n"); + else + seq_printf(seq, "present voltage: %d mV\n", + battery->voltage_now); + end: + if (result) + seq_printf(seq, "ERROR: Unable to read battery state\n"); + + return result; +} + +static int acpi_battery_print_alarm(struct seq_file *seq, int result) +{ + struct acpi_battery *battery = seq->private; + + if (result) + goto end; + + if (!acpi_battery_present(battery)) { + seq_printf(seq, "present: no\n"); + goto end; + } + seq_printf(seq, "alarm: "); + if (!battery->alarm) + seq_printf(seq, "unsupported\n"); + else + seq_printf(seq, "%u %sh\n", battery->alarm, + acpi_battery_units(battery)); + end: + if (result) + seq_printf(seq, "ERROR: Unable to read battery alarm\n"); + return result; +} + +static ssize_t acpi_battery_write_alarm(struct file *file, + const char __user * buffer, + size_t count, loff_t * ppos) +{ + int result = 0; + char alarm_string[12] = { '\0' }; + struct seq_file *m = file->private_data; + struct acpi_battery *battery = m->private; + + if (!battery || (count > sizeof(alarm_string) - 1)) + return -EINVAL; + if (!acpi_battery_present(battery)) { + result = -ENODEV; + goto end; + } + if (copy_from_user(alarm_string, buffer, count)) { + result = -EFAULT; + goto end; + } + alarm_string[count] = '\0'; + battery->alarm = simple_strtol(alarm_string, NULL, 0); + result = acpi_battery_set_alarm(battery); + end: + if (!result) + return count; + return result; +} + +typedef int(*print_func)(struct seq_file *seq, int result); + +static print_func acpi_print_funcs[ACPI_BATTERY_NUMFILES] = { + acpi_battery_print_info, + acpi_battery_print_state, + acpi_battery_print_alarm, +}; + +static int acpi_battery_read(int fid, struct seq_file *seq) +{ + struct acpi_battery *battery = seq->private; + int result = acpi_battery_update(battery); + return acpi_print_funcs[fid](seq, result); +} + +#define DECLARE_FILE_FUNCTIONS(_name) \ +static int acpi_battery_read_##_name(struct seq_file *seq, void *offset) \ +{ \ + return acpi_battery_read(_name##_tag, seq); \ +} \ +static int acpi_battery_##_name##_open_fs(struct inode *inode, struct file *file) \ +{ \ + return single_open(file, acpi_battery_read_##_name, PDE_DATA(inode)); \ +} + +DECLARE_FILE_FUNCTIONS(info); +DECLARE_FILE_FUNCTIONS(state); +DECLARE_FILE_FUNCTIONS(alarm); + +#undef DECLARE_FILE_FUNCTIONS + +#define FILE_DESCRIPTION_RO(_name) \ + { \ + .name = __stringify(_name), \ + .mode = S_IRUGO, \ + .ops = { \ + .open = acpi_battery_##_name##_open_fs, \ + .read = seq_read, \ + .llseek = seq_lseek, \ + .release = single_release, \ + .owner = THIS_MODULE, \ + }, \ + } + +#define FILE_DESCRIPTION_RW(_name) \ + { \ + .name = __stringify(_name), \ + .mode = S_IFREG | S_IRUGO | S_IWUSR, \ + .ops = { \ + .open = acpi_battery_##_name##_open_fs, \ + .read = seq_read, \ + .llseek = seq_lseek, \ + .write = acpi_battery_write_##_name, \ + .release = single_release, \ + .owner = THIS_MODULE, \ + }, \ + } + +static const struct battery_file { + struct file_operations ops; + umode_t mode; + const char *name; +} acpi_battery_file[] = { + FILE_DESCRIPTION_RO(info), + FILE_DESCRIPTION_RO(state), + FILE_DESCRIPTION_RW(alarm), +}; + +#undef FILE_DESCRIPTION_RO +#undef FILE_DESCRIPTION_RW + +static int acpi_battery_add_fs(struct acpi_device *device) +{ + struct proc_dir_entry *entry = NULL; + int i; + + printk(KERN_WARNING PREFIX "Deprecated procfs I/F for battery is loaded," + " please retry with CONFIG_ACPI_PROCFS_POWER cleared\n"); + if (!acpi_device_dir(device)) { + acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), + acpi_battery_dir); + if (!acpi_device_dir(device)) + return -ENODEV; + } + + for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) { + entry = proc_create_data(acpi_battery_file[i].name, + acpi_battery_file[i].mode, + acpi_device_dir(device), + &acpi_battery_file[i].ops, + acpi_driver_data(device)); + if (!entry) + return -ENODEV; + } + return 0; +} + +static void acpi_battery_remove_fs(struct acpi_device *device) +{ + int i; + if (!acpi_device_dir(device)) + return; + for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) + remove_proc_entry(acpi_battery_file[i].name, + acpi_device_dir(device)); + + remove_proc_entry(acpi_device_bid(device), acpi_battery_dir); + acpi_device_dir(device) = NULL; +} + +#endif + +/* -------------------------------------------------------------------------- Driver Interface -------------------------------------------------------------------------- */ @@ -790,6 +1090,15 @@ static int acpi_battery_add(struct acpi_device *device) result = acpi_battery_update(battery); if (result) goto fail; +#ifdef CONFIG_ACPI_PROCFS_POWER + result = acpi_battery_add_fs(device); +#endif + if (result) { +#ifdef CONFIG_ACPI_PROCFS_POWER + acpi_battery_remove_fs(device); +#endif + goto fail; + } printk(KERN_INFO PREFIX "%s Slot [%s] (battery %s)\n", ACPI_BATTERY_DEVICE_NAME, acpi_device_bid(device), @@ -816,6 +1125,9 @@ static int acpi_battery_remove(struct acpi_device *device) return -EINVAL; battery = acpi_driver_data(device); unregister_pm_notifier(&battery->pm_nb); +#ifdef CONFIG_ACPI_PROCFS_POWER + acpi_battery_remove_fs(device); +#endif sysfs_remove_battery(battery); mutex_destroy(&battery->lock); mutex_destroy(&battery->sysfs_lock); @@ -866,7 +1178,19 @@ static void __init acpi_battery_init_async(void *unused, async_cookie_t cookie) if (dmi_check_system(bat_dmi_table)) battery_bix_broken_package = 1; - acpi_bus_register_driver(&acpi_battery_driver); + +#ifdef CONFIG_ACPI_PROCFS_POWER + acpi_battery_dir = acpi_lock_battery_dir(); + if (!acpi_battery_dir) + return; +#endif + if (acpi_bus_register_driver(&acpi_battery_driver) < 0) { +#ifdef CONFIG_ACPI_PROCFS_POWER + acpi_unlock_battery_dir(acpi_battery_dir); +#endif + return; + } + return; } static int __init acpi_battery_init(void) @@ -878,6 +1202,9 @@ static int __init acpi_battery_init(void) static void __exit acpi_battery_exit(void) { acpi_bus_unregister_driver(&acpi_battery_driver); +#ifdef CONFIG_ACPI_PROCFS_POWER + acpi_unlock_battery_dir(acpi_battery_dir); +#endif } module_init(acpi_battery_init); diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index afec4526c48..3d8413d02a9 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -314,6 +314,14 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_VERSION, "2349D15"), }, }, + { + .callback = dmi_disable_osi_win8, + .ident = "Dell Inspiron 7737", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7737"), + }, + }, /* * BIOS invocation of _OSI(Linux) is almost always a BIOS bug. @@ -374,6 +382,19 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T500"), }, }, + /* + * Without this this EEEpc exports a non working WMI interface, with + * this it exports a working "good old" eeepc_laptop interface, fixing + * both brightness control, and rfkill not working. + */ + { + .callback = dmi_enable_osi_linux, + .ident = "Asus EEE PC 1015PX", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "1015PX"), + }, + }, {} }; diff --git a/drivers/acpi/cm_sbs.c b/drivers/acpi/cm_sbs.c new file mode 100644 index 00000000000..6c9ee68e46f --- /dev/null +++ b/drivers/acpi/cm_sbs.c @@ -0,0 +1,105 @@ +/* + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/acpi.h> +#include <linux/types.h> +#include <linux/proc_fs.h> +#include <linux/seq_file.h> +#include <acpi/acpi_bus.h> +#include <acpi/acpi_drivers.h> + +#define PREFIX "ACPI: " + +ACPI_MODULE_NAME("cm_sbs"); +#define ACPI_AC_CLASS "ac_adapter" +#define ACPI_BATTERY_CLASS "battery" +#define _COMPONENT ACPI_SBS_COMPONENT +static struct proc_dir_entry *acpi_ac_dir; +static struct proc_dir_entry *acpi_battery_dir; + +static DEFINE_MUTEX(cm_sbs_mutex); + +static int lock_ac_dir_cnt; +static int lock_battery_dir_cnt; + +struct proc_dir_entry *acpi_lock_ac_dir(void) +{ + mutex_lock(&cm_sbs_mutex); + if (!acpi_ac_dir) + acpi_ac_dir = proc_mkdir(ACPI_AC_CLASS, acpi_root_dir); + if (acpi_ac_dir) { + lock_ac_dir_cnt++; + } else { + printk(KERN_ERR PREFIX + "Cannot create %s\n", ACPI_AC_CLASS); + } + mutex_unlock(&cm_sbs_mutex); + return acpi_ac_dir; +} +EXPORT_SYMBOL(acpi_lock_ac_dir); + +void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir_param) +{ + mutex_lock(&cm_sbs_mutex); + if (acpi_ac_dir_param) + lock_ac_dir_cnt--; + if (lock_ac_dir_cnt == 0 && acpi_ac_dir_param && acpi_ac_dir) { + remove_proc_entry(ACPI_AC_CLASS, acpi_root_dir); + acpi_ac_dir = NULL; + } + mutex_unlock(&cm_sbs_mutex); +} +EXPORT_SYMBOL(acpi_unlock_ac_dir); + +struct proc_dir_entry *acpi_lock_battery_dir(void) +{ + mutex_lock(&cm_sbs_mutex); + if (!acpi_battery_dir) { + acpi_battery_dir = + proc_mkdir(ACPI_BATTERY_CLASS, acpi_root_dir); + } + if (acpi_battery_dir) { + lock_battery_dir_cnt++; + } else { + printk(KERN_ERR PREFIX + "Cannot create %s\n", ACPI_BATTERY_CLASS); + } + mutex_unlock(&cm_sbs_mutex); + return acpi_battery_dir; +} +EXPORT_SYMBOL(acpi_lock_battery_dir); + +void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir_param) +{ + mutex_lock(&cm_sbs_mutex); + if (acpi_battery_dir_param) + lock_battery_dir_cnt--; + if (lock_battery_dir_cnt == 0 && acpi_battery_dir_param + && acpi_battery_dir) { + remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir); + acpi_battery_dir = NULL; + } + mutex_unlock(&cm_sbs_mutex); + return; +} +EXPORT_SYMBOL(acpi_unlock_battery_dir); diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 8b6990e417e..f8bc5a755dd 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -457,10 +457,10 @@ static struct dmi_system_id video_dmi_table[] __initdata = { }, { .callback = video_set_use_native_backlight, - .ident = "ThinkPad T430s", + .ident = "ThinkPad T430 and T430s", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T430s"), + DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T430"), }, }, { @@ -472,7 +472,7 @@ static struct dmi_system_id video_dmi_table[] __initdata = { }, }, { - .callback = video_set_use_native_backlight, + .callback = video_set_use_native_backlight, .ident = "ThinkPad X1 Carbon", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), @@ -500,7 +500,7 @@ static struct dmi_system_id video_dmi_table[] __initdata = { .ident = "Dell Inspiron 7520", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_VERSION, "Inspiron 7520"), + DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7520"), }, }, { @@ -513,6 +513,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = { }, { .callback = video_set_use_native_backlight, + .ident = "Acer Aspire 5742G", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5742G"), + }, + }, + { + .callback = video_set_use_native_backlight, .ident = "Acer Aspire V5-431", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Acer"), diff --git a/drivers/bus/mvebu-mbus.c b/drivers/bus/mvebu-mbus.c index 293e2e0a0a8..00b73448b22 100644 --- a/drivers/bus/mvebu-mbus.c +++ b/drivers/bus/mvebu-mbus.c @@ -56,6 +56,7 @@ #include <linux/of.h> #include <linux/of_address.h> #include <linux/debugfs.h> +#include <linux/log2.h> /* * DDR target is the same on all platforms. @@ -222,12 +223,6 @@ static int mvebu_mbus_window_conflicts(struct mvebu_mbus_state *mbus, */ if ((u64)base < wend && end > wbase) return 0; - - /* - * Check if target/attribute conflicts - */ - if (target == wtarget && attr == wattr) - return 0; } return 1; @@ -266,6 +261,17 @@ static int mvebu_mbus_setup_window(struct mvebu_mbus_state *mbus, mbus->soc->win_cfg_offset(win); u32 ctrl, remap_addr; + if (!is_power_of_2(size)) { + WARN(true, "Invalid MBus window size: 0x%zx\n", size); + return -EINVAL; + } + + if ((base & (phys_addr_t)(size - 1)) != 0) { + WARN(true, "Invalid MBus base/size: %pa len 0x%zx\n", &base, + size); + return -EINVAL; + } + ctrl = ((size - 1) & WIN_CTRL_SIZE_MASK) | (attr << WIN_CTRL_ATTR_SHIFT) | (target << WIN_CTRL_TGT_SHIFT) | @@ -413,6 +419,10 @@ static int mvebu_devs_debug_show(struct seq_file *seq, void *v) win, (unsigned long long)wbase, (unsigned long long)(wbase + wsize), wtarget, wattr); + if (!is_power_of_2(wsize) || + ((wbase & (u64)(wsize - 1)) != 0)) + seq_puts(seq, " (Invalid base/size!!)"); + if (win < mbus->soc->num_remappable_wins) { seq_printf(seq, " (remap %016llx)\n", (unsigned long long)wremap); diff --git a/drivers/char/tpm/tpm_ppi.c b/drivers/char/tpm/tpm_ppi.c index b3ea223585b..61dcc8011ec 100644 --- a/drivers/char/tpm/tpm_ppi.c +++ b/drivers/char/tpm/tpm_ppi.c @@ -328,13 +328,11 @@ int tpm_add_ppi(struct kobject *parent) /* Cache TPM ACPI handle and version string */ acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, ppi_callback, NULL, NULL, &tpm_ppi_handle); - if (tpm_ppi_handle == NULL) - return -ENODEV; - - return sysfs_create_group(parent, &ppi_attr_grp); + return tpm_ppi_handle ? sysfs_create_group(parent, &ppi_attr_grp) : 0; } void tpm_remove_ppi(struct kobject *parent) { - sysfs_remove_group(parent, &ppi_attr_grp); + if (tpm_ppi_handle) + sysfs_remove_group(parent, &ppi_attr_grp); } diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 099967302bf..eab8ccfe6be 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -37,6 +37,7 @@ #define BYT_RATIOS 0x66a #define BYT_VIDS 0x66b #define BYT_TURBO_RATIOS 0x66c +#define BYT_TURBO_VIDS 0x66d #define FRAC_BITS 6 @@ -70,8 +71,9 @@ struct pstate_data { }; struct vid_data { - int32_t min; - int32_t max; + int min; + int max; + int turbo; int32_t ratio; }; @@ -359,14 +361,14 @@ static int byt_get_min_pstate(void) { u64 value; rdmsrl(BYT_RATIOS, value); - return (value >> 8) & 0xFF; + return (value >> 8) & 0x3F; } static int byt_get_max_pstate(void) { u64 value; rdmsrl(BYT_RATIOS, value); - return (value >> 16) & 0xFF; + return (value >> 16) & 0x3F; } static int byt_get_turbo_pstate(void) @@ -393,6 +395,9 @@ static void byt_set_pstate(struct cpudata *cpudata, int pstate) vid_fp = clamp_t(int32_t, vid_fp, cpudata->vid.min, cpudata->vid.max); vid = fp_toint(vid_fp); + if (pstate > cpudata->pstate.max_pstate) + vid = cpudata->vid.turbo; + val |= vid; wrmsrl(MSR_IA32_PERF_CTL, val); @@ -402,13 +407,17 @@ static void byt_get_vid(struct cpudata *cpudata) { u64 value; + rdmsrl(BYT_VIDS, value); - cpudata->vid.min = int_tofp((value >> 8) & 0x7f); - cpudata->vid.max = int_tofp((value >> 16) & 0x7f); + cpudata->vid.min = int_tofp((value >> 8) & 0x3f); + cpudata->vid.max = int_tofp((value >> 16) & 0x3f); cpudata->vid.ratio = div_fp( cpudata->vid.max - cpudata->vid.min, int_tofp(cpudata->pstate.max_pstate - cpudata->pstate.min_pstate)); + + rdmsrl(BYT_TURBO_VIDS, value); + cpudata->vid.turbo = value & 0x7f; } @@ -545,12 +554,7 @@ static void intel_pstate_get_cpu_pstates(struct cpudata *cpu) if (pstate_funcs.get_vid) pstate_funcs.get_vid(cpu); - - /* - * goto max pstate so we don't slow up boot if we are built-in if we are - * a module we will take care of it during normal operation - */ - intel_pstate_set_pstate(cpu, cpu->pstate.max_pstate); + intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate); } static inline void intel_pstate_calc_busy(struct cpudata *cpu, @@ -695,11 +699,6 @@ static int intel_pstate_init_cpu(unsigned int cpunum) cpu = all_cpu_data[cpunum]; intel_pstate_get_cpu_pstates(cpu); - if (!cpu->pstate.current_pstate) { - all_cpu_data[cpunum] = NULL; - kfree(cpu); - return -ENODATA; - } cpu->cpu = cpunum; @@ -710,7 +709,6 @@ static int intel_pstate_init_cpu(unsigned int cpunum) cpu->timer.expires = jiffies + HZ/100; intel_pstate_busy_pid_reset(cpu); intel_pstate_sample(cpu); - intel_pstate_set_pstate(cpu, cpu->pstate.max_pstate); add_timer_on(&cpu->timer, cpunum); diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c index f0bc31f5db2..d4add862194 100644 --- a/drivers/cpufreq/loongson2_cpufreq.c +++ b/drivers/cpufreq/loongson2_cpufreq.c @@ -62,7 +62,7 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy, set_cpus_allowed_ptr(current, &cpus_allowed); /* setting the cpu frequency */ - clk_set_rate(policy->clk, freq); + clk_set_rate(policy->clk, freq * 1000); return 0; } @@ -92,7 +92,7 @@ static int loongson2_cpufreq_cpu_init(struct cpufreq_policy *policy) i++) loongson2_clockmod_table[i].frequency = (rate * i) / 8; - ret = clk_set_rate(cpuclk, rate); + ret = clk_set_rate(cpuclk, rate * 1000); if (ret) { clk_put(cpuclk); return ret; diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index fa486c5fbb0..aff4a113cda 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -560,47 +560,71 @@ parse_edp(struct drm_i915_private *dev_priv, struct bdb_header *bdb) dev_priv->vbt.edp_pps = *edp_pps; - dev_priv->vbt.edp_rate = edp_link_params->rate ? DP_LINK_BW_2_7 : - DP_LINK_BW_1_62; + switch (edp_link_params->rate) { + case EDP_RATE_1_62: + dev_priv->vbt.edp_rate = DP_LINK_BW_1_62; + break; + case EDP_RATE_2_7: + dev_priv->vbt.edp_rate = DP_LINK_BW_2_7; + break; + default: + DRM_DEBUG_KMS("VBT has unknown eDP link rate value %u\n", + edp_link_params->rate); + break; + } + switch (edp_link_params->lanes) { - case 0: + case EDP_LANE_1: dev_priv->vbt.edp_lanes = 1; break; - case 1: + case EDP_LANE_2: dev_priv->vbt.edp_lanes = 2; break; - case 3: - default: + case EDP_LANE_4: dev_priv->vbt.edp_lanes = 4; break; + default: + DRM_DEBUG_KMS("VBT has unknown eDP lane count value %u\n", + edp_link_params->lanes); + break; } + switch (edp_link_params->preemphasis) { - case 0: + case EDP_PREEMPHASIS_NONE: dev_priv->vbt.edp_preemphasis = DP_TRAIN_PRE_EMPHASIS_0; break; - case 1: + case EDP_PREEMPHASIS_3_5dB: dev_priv->vbt.edp_preemphasis = DP_TRAIN_PRE_EMPHASIS_3_5; break; - case 2: + case EDP_PREEMPHASIS_6dB: dev_priv->vbt.edp_preemphasis = DP_TRAIN_PRE_EMPHASIS_6; break; - case 3: + case EDP_PREEMPHASIS_9_5dB: dev_priv->vbt.edp_preemphasis = DP_TRAIN_PRE_EMPHASIS_9_5; break; + default: + DRM_DEBUG_KMS("VBT has unknown eDP pre-emphasis value %u\n", + edp_link_params->preemphasis); + break; } + switch (edp_link_params->vswing) { - case 0: + case EDP_VSWING_0_4V: dev_priv->vbt.edp_vswing = DP_TRAIN_VOLTAGE_SWING_400; break; - case 1: + case EDP_VSWING_0_6V: dev_priv->vbt.edp_vswing = DP_TRAIN_VOLTAGE_SWING_600; break; - case 2: + case EDP_VSWING_0_8V: dev_priv->vbt.edp_vswing = DP_TRAIN_VOLTAGE_SWING_800; break; - case 3: + case EDP_VSWING_1_2V: dev_priv->vbt.edp_vswing = DP_TRAIN_VOLTAGE_SWING_1200; break; + default: + DRM_DEBUG_KMS("VBT has unknown eDP voltage swing value %u\n", + edp_link_params->vswing); + break; } } diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 5ca68aa9f23..2a00cb828d2 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -121,6 +121,22 @@ intel_dp_max_link_bw(struct intel_dp *intel_dp) return max_link_bw; } +static u8 intel_dp_max_lane_count(struct intel_dp *intel_dp) +{ + struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); + struct drm_device *dev = intel_dig_port->base.base.dev; + u8 source_max, sink_max; + + source_max = 4; + if (HAS_DDI(dev) && intel_dig_port->port == PORT_A && + (intel_dig_port->saved_port_bits & DDI_A_4_LANES) == 0) + source_max = 2; + + sink_max = drm_dp_max_lane_count(intel_dp->dpcd); + + return min(source_max, sink_max); +} + /* * The units on the numbers in the next two are... bizarre. Examples will * make it clearer; this one parallels an example in the eDP spec. @@ -171,7 +187,7 @@ intel_dp_mode_valid(struct drm_connector *connector, } max_link_clock = drm_dp_bw_code_to_link_rate(intel_dp_max_link_bw(intel_dp)); - max_lanes = drm_dp_max_lane_count(intel_dp->dpcd); + max_lanes = intel_dp_max_lane_count(intel_dp); max_rate = intel_dp_max_data_rate(max_link_clock, max_lanes); mode_rate = intel_dp_link_required(target_clock, 18); @@ -751,8 +767,10 @@ intel_dp_compute_config(struct intel_encoder *encoder, struct intel_crtc *intel_crtc = encoder->new_crtc; struct intel_connector *intel_connector = intel_dp->attached_connector; int lane_count, clock; - int max_lane_count = drm_dp_max_lane_count(intel_dp->dpcd); + int min_lane_count = 1; + int max_lane_count = intel_dp_max_lane_count(intel_dp); /* Conveniently, the link BW constants become indices with a shift...*/ + int min_clock = 0; int max_clock = intel_dp_max_link_bw(intel_dp) >> 3; int bpp, mode_rate; static int bws[] = { DP_LINK_BW_1_62, DP_LINK_BW_2_7, DP_LINK_BW_5_4 }; @@ -785,19 +803,38 @@ intel_dp_compute_config(struct intel_encoder *encoder, /* Walk through all bpp values. Luckily they're all nicely spaced with 2 * bpc in between. */ bpp = pipe_config->pipe_bpp; - if (is_edp(intel_dp) && dev_priv->vbt.edp_bpp && - dev_priv->vbt.edp_bpp < bpp) { - DRM_DEBUG_KMS("clamping bpp for eDP panel to BIOS-provided %i\n", - dev_priv->vbt.edp_bpp); - bpp = dev_priv->vbt.edp_bpp; + if (is_edp(intel_dp)) { + if (dev_priv->vbt.edp_bpp && dev_priv->vbt.edp_bpp < bpp) { + DRM_DEBUG_KMS("clamping bpp for eDP panel to BIOS-provided %i\n", + dev_priv->vbt.edp_bpp); + bpp = dev_priv->vbt.edp_bpp; + } + + if (IS_BROADWELL(dev)) { + /* Yes, it's an ugly hack. */ + min_lane_count = max_lane_count; + DRM_DEBUG_KMS("forcing lane count to max (%u) on BDW\n", + min_lane_count); + } else if (dev_priv->vbt.edp_lanes) { + min_lane_count = min(dev_priv->vbt.edp_lanes, + max_lane_count); + DRM_DEBUG_KMS("using min %u lanes per VBT\n", + min_lane_count); + } + + if (dev_priv->vbt.edp_rate) { + min_clock = min(dev_priv->vbt.edp_rate >> 3, max_clock); + DRM_DEBUG_KMS("using min %02x link bw per VBT\n", + bws[min_clock]); + } } for (; bpp >= 6*3; bpp -= 2*3) { mode_rate = intel_dp_link_required(adjusted_mode->crtc_clock, bpp); - for (lane_count = 1; lane_count <= max_lane_count; lane_count <<= 1) { - for (clock = 0; clock <= max_clock; clock++) { + for (lane_count = min_lane_count; lane_count <= max_lane_count; lane_count <<= 1) { + for (clock = min_clock; clock <= max_clock; clock++) { link_clock = drm_dp_bw_code_to_link_rate(bws[clock]); link_avail = intel_dp_max_data_rate(link_clock, lane_count); diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c index fce4a0d93c0..f73ba5e6b7a 100644 --- a/drivers/gpu/drm/i915/intel_fbdev.c +++ b/drivers/gpu/drm/i915/intel_fbdev.c @@ -387,6 +387,15 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, height); } + /* No preferred mode marked by the EDID? Are there any modes? */ + if (!modes[i] && !list_empty(&connector->modes)) { + DRM_DEBUG_KMS("using first mode listed on connector %s\n", + drm_get_connector_name(connector)); + modes[i] = list_first_entry(&connector->modes, + struct drm_display_mode, + head); + } + /* last resort: use current mode */ if (!modes[i]) { /* diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index 0eead16aeda..cb8cfb7e097 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -492,6 +492,7 @@ void intel_panel_set_backlight(struct intel_connector *connector, u32 level, enum pipe pipe = intel_get_pipe_from_connector(connector); u32 freq; unsigned long flags; + u64 n; if (!panel->backlight.present || pipe == INVALID_PIPE) return; @@ -502,10 +503,9 @@ void intel_panel_set_backlight(struct intel_connector *connector, u32 level, /* scale to hardware max, but be careful to not overflow */ freq = panel->backlight.max; - if (freq < max) - level = level * freq / max; - else - level = freq / max * level; + n = (u64)level * freq; + do_div(n, max); + level = n; panel->backlight.level = level; if (panel->backlight.device) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 19e94c3edc1..d93dcf683e8 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -2095,6 +2095,43 @@ static void intel_print_wm_latency(struct drm_device *dev, } } +static bool ilk_increase_wm_latency(struct drm_i915_private *dev_priv, + uint16_t wm[5], uint16_t min) +{ + int level, max_level = ilk_wm_max_level(dev_priv->dev); + + if (wm[0] >= min) + return false; + + wm[0] = max(wm[0], min); + for (level = 1; level <= max_level; level++) + wm[level] = max_t(uint16_t, wm[level], DIV_ROUND_UP(min, 5)); + + return true; +} + +static void snb_wm_latency_quirk(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + bool changed; + + /* + * The BIOS provided WM memory latency values are often + * inadequate for high resolution displays. Adjust them. + */ + changed = ilk_increase_wm_latency(dev_priv, dev_priv->wm.pri_latency, 12) | + ilk_increase_wm_latency(dev_priv, dev_priv->wm.spr_latency, 12) | + ilk_increase_wm_latency(dev_priv, dev_priv->wm.cur_latency, 12); + + if (!changed) + return; + + DRM_DEBUG_KMS("WM latency values increased to avoid potential underruns\n"); + intel_print_wm_latency(dev, "Primary", dev_priv->wm.pri_latency); + intel_print_wm_latency(dev, "Sprite", dev_priv->wm.spr_latency); + intel_print_wm_latency(dev, "Cursor", dev_priv->wm.cur_latency); +} + static void ilk_setup_wm_latency(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -2112,6 +2149,9 @@ static void ilk_setup_wm_latency(struct drm_device *dev) intel_print_wm_latency(dev, "Primary", dev_priv->wm.pri_latency); intel_print_wm_latency(dev, "Sprite", dev_priv->wm.spr_latency); intel_print_wm_latency(dev, "Cursor", dev_priv->wm.cur_latency); + + if (IS_GEN6(dev)) + snb_wm_latency_quirk(dev); } static void ilk_compute_wm_parameters(struct drm_crtc *crtc, diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index d27155adf5d..46be00d66df 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -2424,8 +2424,8 @@ intel_sdvo_connector_init(struct intel_sdvo_connector *connector, if (ret < 0) goto err1; - ret = sysfs_create_link(&encoder->ddc.dev.kobj, - &drm_connector->kdev->kobj, + ret = sysfs_create_link(&drm_connector->kdev->kobj, + &encoder->ddc.dev.kobj, encoder->ddc.dev.kobj.name); if (ret < 0) goto err2; diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index f729dc71d5b..d0c75779d3f 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -185,6 +185,8 @@ static void vlv_force_wake_reset(struct drm_i915_private *dev_priv) { __raw_i915_write32(dev_priv, FORCEWAKE_VLV, _MASKED_BIT_DISABLE(0xffff)); + __raw_i915_write32(dev_priv, FORCEWAKE_MEDIA_VLV, + _MASKED_BIT_DISABLE(0xffff)); /* something from same cacheline, but !FORCEWAKE_VLV */ __raw_posting_read(dev_priv, FORCEWAKE_ACK_VLV); } diff --git a/drivers/hwmon/emc1403.c b/drivers/hwmon/emc1403.c index 90ec1173b8a..01723f04fe4 100644 --- a/drivers/hwmon/emc1403.c +++ b/drivers/hwmon/emc1403.c @@ -163,7 +163,7 @@ static ssize_t store_hyst(struct device *dev, if (retval < 0) goto fail; - hyst = val - retval * 1000; + hyst = retval * 1000 - val; hyst = DIV_ROUND_CLOSEST(hyst, 1000); if (hyst < 0 || hyst > 255) { retval = -ERANGE; @@ -330,7 +330,7 @@ static int emc1403_detect(struct i2c_client *client, } id = i2c_smbus_read_byte_data(client, THERMAL_REVISION_REG); - if (id != 0x01) + if (id < 0x01 || id > 0x04) return -ENODEV; return 0; @@ -355,9 +355,9 @@ static int emc1403_probe(struct i2c_client *client, if (id->driver_data) data->groups[1] = &emc1404_group; - hwmon_dev = hwmon_device_register_with_groups(&client->dev, - client->name, data, - data->groups); + hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev, + client->name, data, + data->groups); if (IS_ERR(hwmon_dev)) return PTR_ERR(hwmon_dev); diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 784695d22fd..53b213226c0 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -19,7 +19,6 @@ #include <linux/crypto.h> #include <linux/workqueue.h> #include <linux/backing-dev.h> -#include <linux/percpu.h> #include <linux/atomic.h> #include <linux/scatterlist.h> #include <asm/page.h> @@ -43,6 +42,7 @@ struct convert_context { struct bvec_iter iter_out; sector_t cc_sector; atomic_t cc_pending; + struct ablkcipher_request *req; }; /* @@ -111,15 +111,7 @@ struct iv_tcw_private { enum flags { DM_CRYPT_SUSPENDED, DM_CRYPT_KEY_VALID }; /* - * Duplicated per-CPU state for cipher. - */ -struct crypt_cpu { - struct ablkcipher_request *req; -}; - -/* - * The fields in here must be read only after initialization, - * changing state should be in crypt_cpu. + * The fields in here must be read only after initialization. */ struct crypt_config { struct dm_dev *dev; @@ -150,12 +142,6 @@ struct crypt_config { sector_t iv_offset; unsigned int iv_size; - /* - * Duplicated per cpu state. Access through - * per_cpu_ptr() only. - */ - struct crypt_cpu __percpu *cpu; - /* ESSIV: struct crypto_cipher *essiv_tfm */ void *iv_private; struct crypto_ablkcipher **tfms; @@ -192,11 +178,6 @@ static void clone_init(struct dm_crypt_io *, struct bio *); static void kcryptd_queue_crypt(struct dm_crypt_io *io); static u8 *iv_of_dmreq(struct crypt_config *cc, struct dm_crypt_request *dmreq); -static struct crypt_cpu *this_crypt_config(struct crypt_config *cc) -{ - return this_cpu_ptr(cc->cpu); -} - /* * Use this to access cipher attributes that are the same for each CPU. */ @@ -903,16 +884,15 @@ static void kcryptd_async_done(struct crypto_async_request *async_req, static void crypt_alloc_req(struct crypt_config *cc, struct convert_context *ctx) { - struct crypt_cpu *this_cc = this_crypt_config(cc); unsigned key_index = ctx->cc_sector & (cc->tfms_count - 1); - if (!this_cc->req) - this_cc->req = mempool_alloc(cc->req_pool, GFP_NOIO); + if (!ctx->req) + ctx->req = mempool_alloc(cc->req_pool, GFP_NOIO); - ablkcipher_request_set_tfm(this_cc->req, cc->tfms[key_index]); - ablkcipher_request_set_callback(this_cc->req, + ablkcipher_request_set_tfm(ctx->req, cc->tfms[key_index]); + ablkcipher_request_set_callback(ctx->req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP, - kcryptd_async_done, dmreq_of_req(cc, this_cc->req)); + kcryptd_async_done, dmreq_of_req(cc, ctx->req)); } /* @@ -921,7 +901,6 @@ static void crypt_alloc_req(struct crypt_config *cc, static int crypt_convert(struct crypt_config *cc, struct convert_context *ctx) { - struct crypt_cpu *this_cc = this_crypt_config(cc); int r; atomic_set(&ctx->cc_pending, 1); @@ -932,7 +911,7 @@ static int crypt_convert(struct crypt_config *cc, atomic_inc(&ctx->cc_pending); - r = crypt_convert_block(cc, ctx, this_cc->req); + r = crypt_convert_block(cc, ctx, ctx->req); switch (r) { /* async */ @@ -941,7 +920,7 @@ static int crypt_convert(struct crypt_config *cc, reinit_completion(&ctx->restart); /* fall through*/ case -EINPROGRESS: - this_cc->req = NULL; + ctx->req = NULL; ctx->cc_sector++; continue; @@ -1040,6 +1019,7 @@ static struct dm_crypt_io *crypt_io_alloc(struct crypt_config *cc, io->sector = sector; io->error = 0; io->base_io = NULL; + io->ctx.req = NULL; atomic_set(&io->io_pending, 0); return io; @@ -1065,6 +1045,8 @@ static void crypt_dec_pending(struct dm_crypt_io *io) if (!atomic_dec_and_test(&io->io_pending)) return; + if (io->ctx.req) + mempool_free(io->ctx.req, cc->req_pool); mempool_free(io, cc->io_pool); if (likely(!base_io)) @@ -1492,8 +1474,6 @@ static int crypt_wipe_key(struct crypt_config *cc) static void crypt_dtr(struct dm_target *ti) { struct crypt_config *cc = ti->private; - struct crypt_cpu *cpu_cc; - int cpu; ti->private = NULL; @@ -1505,13 +1485,6 @@ static void crypt_dtr(struct dm_target *ti) if (cc->crypt_queue) destroy_workqueue(cc->crypt_queue); - if (cc->cpu) - for_each_possible_cpu(cpu) { - cpu_cc = per_cpu_ptr(cc->cpu, cpu); - if (cpu_cc->req) - mempool_free(cpu_cc->req, cc->req_pool); - } - crypt_free_tfms(cc); if (cc->bs) @@ -1530,9 +1503,6 @@ static void crypt_dtr(struct dm_target *ti) if (cc->dev) dm_put_device(ti, cc->dev); - if (cc->cpu) - free_percpu(cc->cpu); - kzfree(cc->cipher); kzfree(cc->cipher_string); @@ -1588,13 +1558,6 @@ static int crypt_ctr_cipher(struct dm_target *ti, if (tmp) DMWARN("Ignoring unexpected additional cipher options"); - cc->cpu = __alloc_percpu(sizeof(*(cc->cpu)), - __alignof__(struct crypt_cpu)); - if (!cc->cpu) { - ti->error = "Cannot allocate per cpu state"; - goto bad_mem; - } - /* * For compatibility with the original dm-crypt mapping format, if * only the cipher name is supplied, use cbc-plain. diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index aa009e86587..fa0f6cbd6a4 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -1566,8 +1566,8 @@ static int multipath_ioctl(struct dm_target *ti, unsigned int cmd, } if (m->pg_init_required) __pg_init_all_paths(m); - spin_unlock_irqrestore(&m->lock, flags); dm_table_run_md_queue_async(m->ti->table); + spin_unlock_irqrestore(&m->lock, flags); } return r ? : __blkdev_driver_ioctl(bdev, mode, cmd, arg); diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index 13abade76ad..2e71de8e004 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -27,6 +27,7 @@ #define MAPPING_POOL_SIZE 1024 #define PRISON_CELLS 1024 #define COMMIT_PERIOD HZ +#define NO_SPACE_TIMEOUT (HZ * 60) DECLARE_DM_KCOPYD_THROTTLE_WITH_MODULE_PARM(snapshot_copy_throttle, "A percentage of time allocated for copy on write"); @@ -175,6 +176,7 @@ struct pool { struct workqueue_struct *wq; struct work_struct worker; struct delayed_work waker; + struct delayed_work no_space_timeout; unsigned long last_commit_jiffies; unsigned ref_count; @@ -935,7 +937,7 @@ static int commit(struct pool *pool) { int r; - if (get_pool_mode(pool) != PM_WRITE) + if (get_pool_mode(pool) >= PM_READ_ONLY) return -EINVAL; r = dm_pool_commit_metadata(pool->pmd); @@ -1590,6 +1592,20 @@ static void do_waker(struct work_struct *ws) queue_delayed_work(pool->wq, &pool->waker, COMMIT_PERIOD); } +/* + * We're holding onto IO to allow userland time to react. After the + * timeout either the pool will have been resized (and thus back in + * PM_WRITE mode), or we degrade to PM_READ_ONLY and start erroring IO. + */ +static void do_no_space_timeout(struct work_struct *ws) +{ + struct pool *pool = container_of(to_delayed_work(ws), struct pool, + no_space_timeout); + + if (get_pool_mode(pool) == PM_OUT_OF_DATA_SPACE && !pool->pf.error_if_no_space) + set_pool_mode(pool, PM_READ_ONLY); +} + /*----------------------------------------------------------------*/ struct noflush_work { @@ -1715,6 +1731,9 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode) pool->process_discard = process_discard; pool->process_prepared_mapping = process_prepared_mapping; pool->process_prepared_discard = process_prepared_discard_passdown; + + if (!pool->pf.error_if_no_space) + queue_delayed_work(pool->wq, &pool->no_space_timeout, NO_SPACE_TIMEOUT); break; case PM_WRITE: @@ -2100,6 +2119,7 @@ static struct pool *pool_create(struct mapped_device *pool_md, INIT_WORK(&pool->worker, do_worker); INIT_DELAYED_WORK(&pool->waker, do_waker); + INIT_DELAYED_WORK(&pool->no_space_timeout, do_no_space_timeout); spin_lock_init(&pool->lock); bio_list_init(&pool->deferred_flush_bios); INIT_LIST_HEAD(&pool->prepared_mappings); @@ -2662,6 +2682,7 @@ static void pool_postsuspend(struct dm_target *ti) struct pool *pool = pt->pool; cancel_delayed_work(&pool->waker); + cancel_delayed_work(&pool->no_space_timeout); flush_workqueue(pool->wq); (void) commit(pool); } diff --git a/drivers/md/md.c b/drivers/md/md.c index 8fda38d23e3..237b7e0ddc7 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -8516,7 +8516,8 @@ static int md_notify_reboot(struct notifier_block *this, if (mddev_trylock(mddev)) { if (mddev->pers) __md_stop_writes(mddev); - mddev->safemode = 2; + if (mddev->persistent) + mddev->safemode = 2; mddev_unlock(mddev); } need_delay = 1; diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 33fc408e5ea..cb882aae9e2 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1172,6 +1172,13 @@ static void __make_request(struct mddev *mddev, struct bio *bio) int max_sectors; int sectors; + /* + * Register the new request and wait if the reconstruction + * thread has put up a bar for new requests. + * Continue immediately if no resync is active currently. + */ + wait_barrier(conf); + sectors = bio_sectors(bio); while (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) && bio->bi_iter.bi_sector < conf->reshape_progress && @@ -1552,12 +1559,6 @@ static void make_request(struct mddev *mddev, struct bio *bio) md_write_start(mddev, bio); - /* - * Register the new request and wait if the reconstruction - * thread has put up a bar for new requests. - * Continue immediately if no resync is active currently. - */ - wait_barrier(conf); do { diff --git a/drivers/memory/mvebu-devbus.c b/drivers/memory/mvebu-devbus.c index 110c0362705..b59a17fb7c3 100644 --- a/drivers/memory/mvebu-devbus.c +++ b/drivers/memory/mvebu-devbus.c @@ -108,8 +108,19 @@ static int devbus_set_timing_params(struct devbus *devbus, node->full_name); return err; } - /* Convert bit width to byte width */ - r.bus_width /= 8; + + /* + * The bus width is encoded into the register as 0 for 8 bits, + * and 1 for 16 bits, so we do the necessary conversion here. + */ + if (r.bus_width == 8) + r.bus_width = 0; + else if (r.bus_width == 16) + r.bus_width = 1; + else { + dev_err(devbus->dev, "invalid bus width %d\n", r.bus_width); + return -EINVAL; + } err = get_timing_param_ps(devbus, node, "devbus,badr-skew-ps", &r.badr_skew); diff --git a/drivers/of/base.c b/drivers/of/base.c index 6d4ee22708c..32e969d9531 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -1831,6 +1831,10 @@ int of_update_property(struct device_node *np, struct property *newprop) if (!found) return -ENODEV; + /* At early boot, bail out and defer setup to of_init() */ + if (!of_kset) + return found ? 0 : -ENODEV; + /* Update the sysfs attribute */ sysfs_remove_bin_file(&np->kobj, &oldprop->attr); __of_add_property_sysfs(np, newprop); diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c index d3d1cfd51e0..e384e253459 100644 --- a/drivers/pci/host/pci-mvebu.c +++ b/drivers/pci/host/pci-mvebu.c @@ -293,6 +293,58 @@ static int mvebu_pcie_hw_wr_conf(struct mvebu_pcie_port *port, return PCIBIOS_SUCCESSFUL; } +/* + * Remove windows, starting from the largest ones to the smallest + * ones. + */ +static void mvebu_pcie_del_windows(struct mvebu_pcie_port *port, + phys_addr_t base, size_t size) +{ + while (size) { + size_t sz = 1 << (fls(size) - 1); + + mvebu_mbus_del_window(base, sz); + base += sz; + size -= sz; + } +} + +/* + * MBus windows can only have a power of two size, but PCI BARs do not + * have this constraint. Therefore, we have to split the PCI BAR into + * areas each having a power of two size. We start from the largest + * one (i.e highest order bit set in the size). + */ +static void mvebu_pcie_add_windows(struct mvebu_pcie_port *port, + unsigned int target, unsigned int attribute, + phys_addr_t base, size_t size, + phys_addr_t remap) +{ + size_t size_mapped = 0; + + while (size) { + size_t sz = 1 << (fls(size) - 1); + int ret; + + ret = mvebu_mbus_add_window_remap_by_id(target, attribute, base, + sz, remap); + if (ret) { + dev_err(&port->pcie->pdev->dev, + "Could not create MBus window at 0x%x, size 0x%x: %d\n", + base, sz, ret); + mvebu_pcie_del_windows(port, base - size_mapped, + size_mapped); + return; + } + + size -= sz; + size_mapped += sz; + base += sz; + if (remap != MVEBU_MBUS_NO_REMAP) + remap += sz; + } +} + static void mvebu_pcie_handle_iobase_change(struct mvebu_pcie_port *port) { phys_addr_t iobase; @@ -304,8 +356,8 @@ static void mvebu_pcie_handle_iobase_change(struct mvebu_pcie_port *port) /* If a window was configured, remove it */ if (port->iowin_base) { - mvebu_mbus_del_window(port->iowin_base, - port->iowin_size); + mvebu_pcie_del_windows(port, port->iowin_base, + port->iowin_size); port->iowin_base = 0; port->iowin_size = 0; } @@ -331,11 +383,11 @@ static void mvebu_pcie_handle_iobase_change(struct mvebu_pcie_port *port) port->iowin_base = port->pcie->io.start + iobase; port->iowin_size = ((0xFFF | ((port->bridge.iolimit & 0xF0) << 8) | (port->bridge.iolimitupper << 16)) - - iobase); + iobase) + 1; - mvebu_mbus_add_window_remap_by_id(port->io_target, port->io_attr, - port->iowin_base, port->iowin_size, - iobase); + mvebu_pcie_add_windows(port, port->io_target, port->io_attr, + port->iowin_base, port->iowin_size, + iobase); } static void mvebu_pcie_handle_membase_change(struct mvebu_pcie_port *port) @@ -346,8 +398,8 @@ static void mvebu_pcie_handle_membase_change(struct mvebu_pcie_port *port) /* If a window was configured, remove it */ if (port->memwin_base) { - mvebu_mbus_del_window(port->memwin_base, - port->memwin_size); + mvebu_pcie_del_windows(port, port->memwin_base, + port->memwin_size); port->memwin_base = 0; port->memwin_size = 0; } @@ -364,10 +416,11 @@ static void mvebu_pcie_handle_membase_change(struct mvebu_pcie_port *port) port->memwin_base = ((port->bridge.membase & 0xFFF0) << 16); port->memwin_size = (((port->bridge.memlimit & 0xFFF0) << 16) | 0xFFFFF) - - port->memwin_base; + port->memwin_base + 1; - mvebu_mbus_add_window_by_id(port->mem_target, port->mem_attr, - port->memwin_base, port->memwin_size); + mvebu_pcie_add_windows(port, port->mem_target, port->mem_attr, + port->memwin_base, port->memwin_size, + MVEBU_MBUS_NO_REMAP); } /* @@ -743,14 +796,21 @@ static resource_size_t mvebu_pcie_align_resource(struct pci_dev *dev, /* * On the PCI-to-PCI bridge side, the I/O windows must have at - * least a 64 KB size and be aligned on their size, and the - * memory windows must have at least a 1 MB size and be - * aligned on their size + * least a 64 KB size and the memory windows must have at + * least a 1 MB size. Moreover, MBus windows need to have a + * base address aligned on their size, and their size must be + * a power of two. This means that if the BAR doesn't have a + * power of two size, several MBus windows will actually be + * created. We need to ensure that the biggest MBus window + * (which will be the first one) is aligned on its size, which + * explains the rounddown_pow_of_two() being done here. */ if (res->flags & IORESOURCE_IO) - return round_up(start, max_t(resource_size_t, SZ_64K, size)); + return round_up(start, max_t(resource_size_t, SZ_64K, + rounddown_pow_of_two(size))); else if (res->flags & IORESOURCE_MEM) - return round_up(start, max_t(resource_size_t, SZ_1M, size)); + return round_up(start, max_t(resource_size_t, SZ_1M, + rounddown_pow_of_two(size))); else return start; } diff --git a/drivers/rtc/rtc-hym8563.c b/drivers/rtc/rtc-hym8563.c index bd628a6f981..e5f13c4310f 100644 --- a/drivers/rtc/rtc-hym8563.c +++ b/drivers/rtc/rtc-hym8563.c @@ -569,6 +569,9 @@ static int hym8563_probe(struct i2c_client *client, if (IS_ERR(hym8563->rtc)) return PTR_ERR(hym8563->rtc); + /* the hym8563 alarm only supports a minute accuracy */ + hym8563->rtc->uie_unsupported = 1; + #ifdef CONFIG_COMMON_CLK hym8563_clkout_register_clk(hym8563); #endif diff --git a/drivers/xen/events/events_fifo.c b/drivers/xen/events/events_fifo.c index 96109a9972b..84b4bfb8434 100644 --- a/drivers/xen/events/events_fifo.c +++ b/drivers/xen/events/events_fifo.c @@ -66,7 +66,22 @@ static DEFINE_PER_CPU(struct evtchn_fifo_queue, cpu_queue); static event_word_t *event_array[MAX_EVENT_ARRAY_PAGES] __read_mostly; static unsigned event_array_pages __read_mostly; +/* + * sync_set_bit() and friends must be unsigned long aligned on non-x86 + * platforms. + */ +#if !defined(CONFIG_X86) && BITS_PER_LONG > 32 + +#define BM(w) (unsigned long *)((unsigned long)w & ~0x7UL) +#define EVTCHN_FIFO_BIT(b, w) \ + (((unsigned long)w & 0x4UL) ? (EVTCHN_FIFO_ ##b + 32) : EVTCHN_FIFO_ ##b) + +#else + #define BM(w) ((unsigned long *)(w)) +#define EVTCHN_FIFO_BIT(b, w) EVTCHN_FIFO_ ##b + +#endif static inline event_word_t *event_word_from_port(unsigned port) { @@ -161,33 +176,38 @@ static void evtchn_fifo_bind_to_cpu(struct irq_info *info, unsigned cpu) static void evtchn_fifo_clear_pending(unsigned port) { event_word_t *word = event_word_from_port(port); - sync_clear_bit(EVTCHN_FIFO_PENDING, BM(word)); + sync_clear_bit(EVTCHN_FIFO_BIT(PENDING, word), BM(word)); } static void evtchn_fifo_set_pending(unsigned port) { event_word_t *word = event_word_from_port(port); - sync_set_bit(EVTCHN_FIFO_PENDING, BM(word)); + sync_set_bit(EVTCHN_FIFO_BIT(PENDING, word), BM(word)); } static bool evtchn_fifo_is_pending(unsigned port) { event_word_t *word = event_word_from_port(port); - return sync_test_bit(EVTCHN_FIFO_PENDING, BM(word)); + return sync_test_bit(EVTCHN_FIFO_BIT(PENDING, word), BM(word)); } static bool evtchn_fifo_test_and_set_mask(unsigned port) { event_word_t *word = event_word_from_port(port); - return sync_test_and_set_bit(EVTCHN_FIFO_MASKED, BM(word)); + return sync_test_and_set_bit(EVTCHN_FIFO_BIT(MASKED, word), BM(word)); } static void evtchn_fifo_mask(unsigned port) { event_word_t *word = event_word_from_port(port); - sync_set_bit(EVTCHN_FIFO_MASKED, BM(word)); + sync_set_bit(EVTCHN_FIFO_BIT(MASKED, word), BM(word)); } +static bool evtchn_fifo_is_masked(unsigned port) +{ + event_word_t *word = event_word_from_port(port); + return sync_test_bit(EVTCHN_FIFO_BIT(MASKED, word), BM(word)); +} /* * Clear MASKED, spinning if BUSY is set. */ @@ -211,7 +231,7 @@ static void evtchn_fifo_unmask(unsigned port) BUG_ON(!irqs_disabled()); clear_masked(word); - if (sync_test_bit(EVTCHN_FIFO_PENDING, BM(word))) { + if (evtchn_fifo_is_pending(port)) { struct evtchn_unmask unmask = { .port = port }; (void)HYPERVISOR_event_channel_op(EVTCHNOP_unmask, &unmask); } @@ -243,7 +263,7 @@ static void handle_irq_for_port(unsigned port) static void consume_one_event(unsigned cpu, struct evtchn_fifo_control_block *control_block, - unsigned priority, uint32_t *ready) + unsigned priority, unsigned long *ready) { struct evtchn_fifo_queue *q = &per_cpu(cpu_queue, cpu); uint32_t head; @@ -273,10 +293,9 @@ static void consume_one_event(unsigned cpu, * copy of the ready word. */ if (head == 0) - clear_bit(priority, BM(ready)); + clear_bit(priority, ready); - if (sync_test_bit(EVTCHN_FIFO_PENDING, BM(word)) - && !sync_test_bit(EVTCHN_FIFO_MASKED, BM(word))) + if (evtchn_fifo_is_pending(port) && !evtchn_fifo_is_masked(port)) handle_irq_for_port(port); q->head[priority] = head; @@ -285,7 +304,7 @@ static void consume_one_event(unsigned cpu, static void evtchn_fifo_handle_events(unsigned cpu) { struct evtchn_fifo_control_block *control_block; - uint32_t ready; + unsigned long ready; unsigned q; control_block = per_cpu(cpu_control_block, cpu); |