litmus-rt.git - The LITMUS^RT kernel.

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author	Felipe Balbi <balbi@ti.com>	2011-06-30 09:57:15 -0400
committer	Felipe Balbi <balbi@ti.com>	2013-03-18 05:17:11 -0400
commit	b15a762f02acb4f1e695a17435f719350f9d5bc1 (patch)
tree	3153d80d78c504213d3580b8262b182bd0df3ecd /fs/timerfd.c
parent	60d04bbee0b729dc1e95d4dc669f68dea2a32570 (diff)

usb: dwc3: gadget: move to threaded IRQ

by moving to threaded IRQs, we allow our IRQ priorities to be configurable when running with realtime patch. Also, since we're running in thread context, we can call functions which might sleep, such as sysfs_notify() without problems. Signed-off-by: Felipe Balbi <balbi@ti.com>

Diffstat (limited to 'fs/timerfd.c')

0 files changed, 0 insertions, 0 deletions

/* * Hardware spinlocks internal header * * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com * * Contact: Ohad Ben-Cohen <ohad@wizery.com> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published * by the Free Software Foundation. * * 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. */ #ifndef __HWSPINLOCK_HWSPINLOCK_H #define __HWSPINLOCK_HWSPINLOCK_H #include <linux/spinlock.h> #include <linux/device.h> struct hwspinlock_device; /** * struct hwspinlock_ops - platform-specific hwspinlock handlers * * @trylock: make a single attempt to take the lock. returns 0 on * failure and true on success. may _not_ sleep. * @unlock: release the lock. always succeed. may _not_ sleep. * @relax: optional, platform-specific relax handler, called by hwspinlock * core while spinning on a lock, between two successive * invocations of @trylock. may _not_ sleep. */ struct hwspinlock_ops { int (*trylock)(struct hwspinlock *lock); void (*unlock)(struct hwspinlock *lock); void (*relax)(struct hwspinlock *lock); }; /** * struct hwspinlock - this struct represents a single hwspinlock instance * @bank: the hwspinlock_device structure which owns this lock * @lock: initialized and used by hwspinlock core * @priv: private data, owned by the underlying platform-specific hwspinlock drv */ struct hwspinlock { struct hwspinlock_device *bank; spinlock_t lock; void *priv; }; /** * struct hwspinlock_device - a device which usually spans numerous hwspinlocks * @dev: underlying device, will be used to invoke runtime PM api * @ops: platform-specific hwspinlock handlers * @base_id: id index of the first lock in this device * @num_locks: number of locks in this device * @lock: dynamically allocated array of 'struct hwspinlock' */ struct hwspinlock_device { struct device *dev; const struct hwspinlock_ops *ops; int base_id; int num_locks; struct hwspinlock lock[0]; }; static inline int hwlock_to_id(struct hwspinlock *hwlock) { int local_id = hwlock - &hwlock->bank->lock[0]; return hwlock->bank->base_id + local_id; } #endif /* __HWSPINLOCK_HWSPINLOCK_H */


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