Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask into merge-rr-cpumask

Conflicts:
	arch/x86/kernel/io_apic.c
	kernel/rcuclassic.c
	kernel/sched.c
	kernel/time/tick-sched.c

Signed-off-by: Mike Travis <travis@sgi.com>
[ mingo@elte.hu: backmerged typo fix for io_apic.c ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>

11 files changed, 287 insertions, 9 deletions

diff --git a/sound/core/Kconfig b/sound/core/Kconfig
index 66348c92f88..7bbdda041a9 100644
--- a/sound/core/Kconfig
+++ b/sound/core/Kconfig
@@ -95,6 +95,26 @@ config SND_SEQUENCER_OSS
 	  this will be compiled as a module. The module will be called
 	  snd-seq-oss.
 
+config SND_HRTIMER
+	tristate "HR-timer backend support"
+	depends on HIGH_RES_TIMERS
+	select SND_TIMER
+	help
+	  Say Y here to enable HR-timer backend for ALSA timer.  ALSA uses
+	  the hrtimer as a precise timing source. The ALSA sequencer code
+	  also can use this timing source.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called snd-hrtimer.
+
+config SND_SEQ_HRTIMER_DEFAULT
+	bool "Use HR-timer as default sequencer timer"
+	depends on SND_HRTIMER && SND_SEQUENCER
+	default y
+	help
+	  Say Y here to use the HR-timer backend as the default sequencer
+	  timer.
+
 config SND_RTCTIMER
 	tristate "RTC Timer support"
 	depends on RTC
@@ -114,6 +134,7 @@ config SND_RTCTIMER
 config SND_SEQ_RTCTIMER_DEFAULT
 	bool "Use RTC as default sequencer timer"
 	depends on SND_RTCTIMER && SND_SEQUENCER
+	depends on !SND_SEQ_HRTIMER_DEFAULT
 	default y
 	help
 	  Say Y here to use the RTC timer as the default sequencer
diff --git a/sound/core/Makefile b/sound/core/Makefile
index d57125a5687..4229052e7b9 100644
--- a/sound/core/Makefile
+++ b/sound/core/Makefile
@@ -17,12 +17,14 @@ snd-page-alloc-$(CONFIG_HAS_DMA) += sgbuf.o
 
 snd-rawmidi-objs  := rawmidi.o
 snd-timer-objs    := timer.o
+snd-hrtimer-objs  := hrtimer.o
 snd-rtctimer-objs := rtctimer.o
 snd-hwdep-objs    := hwdep.o
 
 obj-$(CONFIG_SND) 		+= snd.o
 obj-$(CONFIG_SND_HWDEP)		+= snd-hwdep.o
 obj-$(CONFIG_SND_TIMER)		+= snd-timer.o
+obj-$(CONFIG_SND_HRTIMER)	+= snd-hrtimer.o
 obj-$(CONFIG_SND_RTCTIMER)	+= snd-rtctimer.o
 obj-$(CONFIG_SND_PCM)		+= snd-pcm.o snd-page-alloc.o
 obj-$(CONFIG_SND_RAWMIDI)	+= snd-rawmidi.o
diff --git a/sound/core/device.c b/sound/core/device.c
index c58d8227254..a67dfac08c0 100644
--- a/sound/core/device.c
+++ b/sound/core/device.c
@@ -98,7 +98,7 @@ int snd_device_free(struct snd_card *card, void *device_data)
 		kfree(dev);
 		return 0;
 	}
-	snd_printd("device free %p (from %p), not found\n", device_data,
+	snd_printd("device free %p (from %pF), not found\n", device_data,
 		   __builtin_return_address(0));
 	return -ENXIO;
 }
@@ -135,7 +135,7 @@ int snd_device_disconnect(struct snd_card *card, void *device_data)
 		}
 		return 0;
 	}
-	snd_printd("device disconnect %p (from %p), not found\n", device_data,
+	snd_printd("device disconnect %p (from %pF), not found\n", device_data,
 		   __builtin_return_address(0));
 	return -ENXIO;
 }
diff --git a/sound/core/hrtimer.c b/sound/core/hrtimer.c
new file mode 100644
index 00000000000..34c7d48f506
--- /dev/null
+++ b/sound/core/hrtimer.c
@@ -0,0 +1,154 @@
+/*
+ * ALSA timer back-end using hrtimer
+ * Copyright (C) 2008 Takashi Iwai
+ *
+ *   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/init.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/hrtimer.h>
+#include <sound/core.h>
+#include <sound/timer.h>
+
+MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
+MODULE_DESCRIPTION("ALSA hrtimer backend");
+MODULE_LICENSE("GPL");
+
+MODULE_ALIAS("snd-timer-" __stringify(SNDRV_TIMER_GLOBAL_HRTIMER));
+
+#define NANO_SEC	1000000000UL	/* 10^9 in sec */
+static unsigned int resolution;
+
+struct snd_hrtimer {
+	struct snd_timer *timer;
+	struct hrtimer hrt;
+};
+
+static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt)
+{
+	struct snd_hrtimer *stime = container_of(hrt, struct snd_hrtimer, hrt);
+	struct snd_timer *t = stime->timer;
+	hrtimer_forward_now(hrt, ns_to_ktime(t->sticks * resolution));
+	snd_timer_interrupt(stime->timer, t->sticks);
+	return HRTIMER_RESTART;
+}
+
+static int snd_hrtimer_open(struct snd_timer *t)
+{
+	struct snd_hrtimer *stime;
+
+	stime = kmalloc(sizeof(*stime), GFP_KERNEL);
+	if (!stime)
+		return -ENOMEM;
+	hrtimer_init(&stime->hrt, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+	stime->timer = t;
+	stime->hrt.function = snd_hrtimer_callback;
+	t->private_data = stime;
+	return 0;
+}
+
+static int snd_hrtimer_close(struct snd_timer *t)
+{
+	struct snd_hrtimer *stime = t->private_data;
+
+	if (stime) {
+		hrtimer_cancel(&stime->hrt);
+		kfree(stime);
+		t->private_data = NULL;
+	}
+	return 0;
+}
+
+static int snd_hrtimer_start(struct snd_timer *t)
+{
+	struct snd_hrtimer *stime = t->private_data;
+
+	hrtimer_start(&stime->hrt, ns_to_ktime(t->sticks * resolution),
+		      HRTIMER_MODE_REL);
+	return 0;
+}
+
+static int snd_hrtimer_stop(struct snd_timer *t)
+{
+	struct snd_hrtimer *stime = t->private_data;
+
+	hrtimer_cancel(&stime->hrt);
+	return 0;
+}
+
+static struct snd_timer_hardware hrtimer_hw = {
+	.flags =	SNDRV_TIMER_HW_AUTO,
+	.open =		snd_hrtimer_open,
+	.close =	snd_hrtimer_close,
+	.start =	snd_hrtimer_start,
+	.stop =		snd_hrtimer_stop,
+};
+
+/*
+ * entry functions
+ */
+
+static struct snd_timer *mytimer;
+
+static int __init snd_hrtimer_init(void)
+{
+	struct snd_timer *timer;
+	struct timespec tp;
+	int err;
+
+	hrtimer_get_res(CLOCK_MONOTONIC, &tp);
+	if (tp.tv_sec > 0 || !tp.tv_nsec) {
+		snd_printk(KERN_ERR
+			   "snd-hrtimer: Invalid resolution %u.%09u",
+			   (unsigned)tp.tv_sec, (unsigned)tp.tv_nsec);
+		return -EINVAL;
+	}
+	resolution = tp.tv_nsec;
+
+	/* Create a new timer and set up the fields */
+	err = snd_timer_global_new("hrtimer", SNDRV_TIMER_GLOBAL_HRTIMER,
+				   &timer);
+	if (err < 0)
+		return err;
+
+	timer->module = THIS_MODULE;
+	strcpy(timer->name, "HR timer");
+	timer->hw = hrtimer_hw;
+	timer->hw.resolution = resolution;
+	timer->hw.ticks = NANO_SEC / resolution;
+
+	err = snd_timer_global_register(timer);
+	if (err < 0) {
+		snd_timer_global_free(timer);
+		return err;
+	}
+	mytimer = timer; /* remember this */
+
+	return 0;
+}
+
+static void __exit snd_hrtimer_exit(void)
+{
+	if (mytimer) {
+		snd_timer_global_free(mytimer);
+		mytimer = NULL;
+	}
+}
+
+module_init(snd_hrtimer_init);
+module_exit(snd_hrtimer_exit);
diff --git a/sound/core/info.c b/sound/core/info.c
index 527b207462b..70fa87189f3 100644
--- a/sound/core/info.c
+++ b/sound/core/info.c
@@ -653,6 +653,23 @@ int snd_info_card_register(struct snd_card *card)
 }
 
 /*
+ * called on card->id change
+ */
+void snd_info_card_id_change(struct snd_card *card)
+{
+	mutex_lock(&info_mutex);
+	if (card->proc_root_link) {
+		snd_remove_proc_entry(snd_proc_root, card->proc_root_link);
+		card->proc_root_link = NULL;
+	}
+	if (strcmp(card->id, card->proc_root->name))
+		card->proc_root_link = proc_symlink(card->id,
+						    snd_proc_root,
+						    card->proc_root->name);
+	mutex_unlock(&info_mutex);
+}
+
+/*
  * de-register the card proc file
  * called from init.c
  */
diff --git a/sound/core/init.c b/sound/core/init.c
index b47ff8b44be..0d5520c415d 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -533,6 +533,65 @@ static void choose_default_id(struct snd_card *card)
 	}
 }
 
+#ifndef CONFIG_SYSFS_DEPRECATED
+static ssize_t
+card_id_show_attr(struct device *dev,
+		  struct device_attribute *attr, char *buf)
+{
+	struct snd_card *card = dev_get_drvdata(dev);
+	return snprintf(buf, PAGE_SIZE, "%s\n", card ? card->id : "(null)");
+}
+
+static ssize_t
+card_id_store_attr(struct device *dev, struct device_attribute *attr,
+		   const char *buf, size_t count)
+{
+	struct snd_card *card = dev_get_drvdata(dev);
+	char buf1[sizeof(card->id)];
+	size_t copy = count > sizeof(card->id) - 1 ?
+					sizeof(card->id) - 1 : count;
+	size_t idx;
+	int c;
+
+	for (idx = 0; idx < copy; idx++) {
+		c = buf[idx];
+		if (!isalnum(c) && c != '_' && c != '-')
+			return -EINVAL;
+	}
+	memcpy(buf1, buf, copy);
+	buf1[copy] = '\0';
+	mutex_lock(&snd_card_mutex);
+	if (!snd_info_check_reserved_words(buf1)) {
+	     __exist:
+		mutex_unlock(&snd_card_mutex);
+		return -EEXIST;
+	}
+	for (idx = 0; idx < snd_ecards_limit; idx++) {
+		if (snd_cards[idx] && !strcmp(snd_cards[idx]->id, buf1))
+			goto __exist;
+	}
+	strcpy(card->id, buf1);
+	snd_info_card_id_change(card);
+	mutex_unlock(&snd_card_mutex);
+
+	return count;
+}
+
+static struct device_attribute card_id_attrs =
+	__ATTR(id, S_IRUGO | S_IWUSR, card_id_show_attr, card_id_store_attr);
+
+static ssize_t
+card_number_show_attr(struct device *dev,
+		     struct device_attribute *attr, char *buf)
+{
+	struct snd_card *card = dev_get_drvdata(dev);
+	return snprintf(buf, PAGE_SIZE, "%i\n", card ? card->number : -1);
+}
+
+static struct device_attribute card_number_attrs =
+	__ATTR(number, S_IRUGO, card_number_show_attr, NULL);
+#endif /* CONFIG_SYSFS_DEPRECATED */
+
 /**
  *  snd_card_register - register the soundcard
  *  @card: soundcard structure
@@ -553,7 +612,7 @@ int snd_card_register(struct snd_card *card)
 #ifndef CONFIG_SYSFS_DEPRECATED
 	if (!card->card_dev) {
 		card->card_dev = device_create(sound_class, card->dev,
-					       MKDEV(0, 0), NULL,
+					       MKDEV(0, 0), card,
 					       "card%i", card->number);
 		if (IS_ERR(card->card_dev))
 			card->card_dev = NULL;
@@ -576,6 +635,16 @@ int snd_card_register(struct snd_card *card)
 	if (snd_mixer_oss_notify_callback)
 		snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_REGISTER);
 #endif
+#ifndef CONFIG_SYSFS_DEPRECATED
+	if (card->card_dev) {
+		err = device_create_file(card->card_dev, &card_id_attrs);
+		if (err < 0)
+			return err;
+		err = device_create_file(card->card_dev, &card_number_attrs);
+		if (err < 0)
+			return err;
+	}
+#endif
 	return 0;
 }
 
diff --git a/sound/core/jack.c b/sound/core/jack.c
index bd2d9e6b55e..dd4a12dc09a 100644
--- a/sound/core/jack.c
+++ b/sound/core/jack.c
@@ -34,6 +34,7 @@ static int snd_jack_dev_free(struct snd_device *device)
 	else
 		input_free_device(jack->input_dev);
 
+	kfree(jack->id);
 	kfree(jack);
 
 	return 0;
@@ -87,7 +88,7 @@ int snd_jack_new(struct snd_card *card, const char *id, int type,
 	if (jack == NULL)
 		return -ENOMEM;
 
-	jack->id = id;
+	jack->id = kstrdup(id, GFP_KERNEL);
 
 	jack->input_dev = input_allocate_device();
 	if (jack->input_dev == NULL) {
@@ -102,9 +103,15 @@ int snd_jack_new(struct snd_card *card, const char *id, int type,
 	if (type & SND_JACK_HEADPHONE)
 		input_set_capability(jack->input_dev, EV_SW,
 				     SW_HEADPHONE_INSERT);
+	if (type & SND_JACK_LINEOUT)
+		input_set_capability(jack->input_dev, EV_SW,
+				     SW_LINEOUT_INSERT);
 	if (type & SND_JACK_MICROPHONE)
 		input_set_capability(jack->input_dev, EV_SW,
 				     SW_MICROPHONE_INSERT);
+	if (type & SND_JACK_MECHANICAL)
+		input_set_capability(jack->input_dev, EV_SW,
+				     SW_JACK_PHYSICAL_INSERT);
 
 	err = snd_device_new(card, SNDRV_DEV_JACK, jack, &ops);
 	if (err < 0)
@@ -153,9 +160,15 @@ void snd_jack_report(struct snd_jack *jack, int status)
 	if (jack->type & SND_JACK_HEADPHONE)
 		input_report_switch(jack->input_dev, SW_HEADPHONE_INSERT,
 				    status & SND_JACK_HEADPHONE);
+	if (jack->type & SND_JACK_LINEOUT)
+		input_report_switch(jack->input_dev, SW_LINEOUT_INSERT,
+				    status & SND_JACK_LINEOUT);
 	if (jack->type & SND_JACK_MICROPHONE)
 		input_report_switch(jack->input_dev, SW_MICROPHONE_INSERT,
 				    status & SND_JACK_MICROPHONE);
+	if (jack->type & SND_JACK_MECHANICAL)
+		input_report_switch(jack->input_dev, SW_JACK_PHYSICAL_INSERT,
+				    status & SND_JACK_MECHANICAL);
 
 	input_sync(jack->input_dev);
 }
diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
index 39672f68ce5..002777ba336 100644
--- a/sound/core/rawmidi.c
+++ b/sound/core/rawmidi.c
@@ -151,7 +151,7 @@ static inline void snd_rawmidi_output_trigger(struct snd_rawmidi_substream *subs
 	if (!substream->opened)
 		return;
 	if (up) {
-		tasklet_hi_schedule(&substream->runtime->tasklet);
+		tasklet_schedule(&substream->runtime->tasklet);
 	} else {
 		tasklet_kill(&substream->runtime->tasklet);
 		substream->ops->trigger(substream, 0);
@@ -908,7 +908,7 @@ int snd_rawmidi_receive(struct snd_rawmidi_substream *substream,
 	}
 	if (result > 0) {
 		if (runtime->event)
-			tasklet_hi_schedule(&runtime->tasklet);
+			tasklet_schedule(&runtime->tasklet);
 		else if (snd_rawmidi_ready(substream))
 			wake_up(&runtime->sleep);
 	}
diff --git a/sound/core/rtctimer.c b/sound/core/rtctimer.c
index 51e64e30dd3..0851cd13e30 100644
--- a/sound/core/rtctimer.c
+++ b/sound/core/rtctimer.c
@@ -118,7 +118,7 @@ static void rtctimer_tasklet(unsigned long data)
  */
 static void rtctimer_interrupt(void *private_data)
 {
-	tasklet_hi_schedule(private_data);
+	tasklet_schedule(private_data);
 }
 
 
diff --git a/sound/core/seq/seq.c b/sound/core/seq/seq.c
index ee0f8405ab3..bf09a5ad186 100644
--- a/sound/core/seq/seq.c
+++ b/sound/core/seq/seq.c
@@ -43,7 +43,9 @@ int seq_default_timer_class = SNDRV_TIMER_CLASS_GLOBAL;
 int seq_default_timer_sclass = SNDRV_TIMER_SCLASS_NONE;
 int seq_default_timer_card = -1;
 int seq_default_timer_device =
-#ifdef CONFIG_SND_SEQ_RTCTIMER_DEFAULT
+#ifdef CONFIG_SND_SEQ_HRTIMER_DEFAULT
+	SNDRV_TIMER_GLOBAL_HRTIMER
+#elif defined(CONFIG_SND_SEQ_RTCTIMER_DEFAULT)
 	SNDRV_TIMER_GLOBAL_RTC
 #else
 	SNDRV_TIMER_GLOBAL_SYSTEM
diff --git a/sound/core/timer.c b/sound/core/timer.c
index c584408c9f1..796532081e8 100644
--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -743,7 +743,7 @@ void snd_timer_interrupt(struct snd_timer * timer, unsigned long ticks_left)
 	spin_unlock_irqrestore(&timer->lock, flags);
 
 	if (use_tasklet)
-		tasklet_hi_schedule(&timer->task_queue);
+		tasklet_schedule(&timer->task_queue);
 }
 
 /*