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-rw-r--r--drivers/Makefile2
-rw-r--r--drivers/acpi/processor_idle.c34
-rw-r--r--drivers/char/agp/ali-agp.c2
-rw-r--r--drivers/char/agp/backend.c3
-rw-r--r--drivers/char/agp/generic.c3
-rw-r--r--drivers/char/agp/i460-agp.c2
-rw-r--r--drivers/char/agp/intel-agp.c11
-rw-r--r--drivers/char/hpet.c126
-rw-r--r--drivers/char/rtc.c253
-rw-r--r--drivers/cpufreq/cpufreq.c2
-rw-r--r--drivers/firmware/dmi_scan.c26
-rw-r--r--drivers/ieee1394/Makefile1
-rw-r--r--drivers/ieee1394/init_ohci1394_dma.c285
-rw-r--r--drivers/input/mouse/pc110pad.c7
-rw-r--r--drivers/kvm/svm.c2
-rw-r--r--drivers/kvm/vmx.c8
-rw-r--r--drivers/lguest/x86/core.c4
-rw-r--r--drivers/pnp/pnpbios/bioscalls.c5
-rw-r--r--drivers/video/vermilion/vermilion.c15
19 files changed, 550 insertions, 241 deletions
diff --git a/drivers/Makefile b/drivers/Makefile
index 8cb37e3557d..d92d4d82d00 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -38,7 +38,7 @@ obj-$(CONFIG_SCSI) += scsi/
obj-$(CONFIG_ATA) += ata/
obj-$(CONFIG_FUSION) += message/
obj-$(CONFIG_FIREWIRE) += firewire/
-obj-$(CONFIG_IEEE1394) += ieee1394/
+obj-y += ieee1394/
obj-$(CONFIG_UIO) += uio/
obj-y += cdrom/
obj-y += auxdisplay/
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 2235f4e02d2..eb1f82f7915 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -357,6 +357,26 @@ int acpi_processor_resume(struct acpi_device * device)
return 0;
}
+#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC)
+static int tsc_halts_in_c(int state)
+{
+ switch (boot_cpu_data.x86_vendor) {
+ case X86_VENDOR_AMD:
+ /*
+ * AMD Fam10h TSC will tick in all
+ * C/P/S0/S1 states when this bit is set.
+ */
+ if (boot_cpu_has(X86_FEATURE_CONSTANT_TSC))
+ return 0;
+ /*FALL THROUGH*/
+ case X86_VENDOR_INTEL:
+ /* Several cases known where TSC halts in C2 too */
+ default:
+ return state > ACPI_STATE_C1;
+ }
+}
+#endif
+
#ifndef CONFIG_CPU_IDLE
static void acpi_processor_idle(void)
{
@@ -516,7 +536,8 @@ static void acpi_processor_idle(void)
#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC)
/* TSC halts in C2, so notify users */
- mark_tsc_unstable("possible TSC halt in C2");
+ if (tsc_halts_in_c(ACPI_STATE_C2))
+ mark_tsc_unstable("possible TSC halt in C2");
#endif
/* Compute time (ticks) that we were actually asleep */
sleep_ticks = ticks_elapsed(t1, t2);
@@ -534,6 +555,7 @@ static void acpi_processor_idle(void)
break;
case ACPI_STATE_C3:
+ acpi_unlazy_tlb(smp_processor_id());
/*
* Must be done before busmaster disable as we might
* need to access HPET !
@@ -579,7 +601,8 @@ static void acpi_processor_idle(void)
#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC)
/* TSC halts in C3, so notify users */
- mark_tsc_unstable("TSC halts in C3");
+ if (tsc_halts_in_c(ACPI_STATE_C3))
+ mark_tsc_unstable("TSC halts in C3");
#endif
/* Compute time (ticks) that we were actually asleep */
sleep_ticks = ticks_elapsed(t1, t2);
@@ -1423,6 +1446,7 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
return 0;
}
+ acpi_unlazy_tlb(smp_processor_id());
/*
* Must be done before busmaster disable as we might need to
* access HPET !
@@ -1443,7 +1467,8 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC)
/* TSC could halt in idle, so notify users */
- mark_tsc_unstable("TSC halts in idle");;
+ if (tsc_halts_in_c(cx->type))
+ mark_tsc_unstable("TSC halts in idle");;
#endif
sleep_ticks = ticks_elapsed(t1, t2);
@@ -1554,7 +1579,8 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC)
/* TSC could halt in idle, so notify users */
- mark_tsc_unstable("TSC halts in idle");
+ if (tsc_halts_in_c(ACPI_STATE_C3))
+ mark_tsc_unstable("TSC halts in idle");
#endif
sleep_ticks = ticks_elapsed(t1, t2);
/* Tell the scheduler how much we idled: */
diff --git a/drivers/char/agp/ali-agp.c b/drivers/char/agp/ali-agp.c
index aa5ddb716ff..1ffb381130c 100644
--- a/drivers/char/agp/ali-agp.c
+++ b/drivers/char/agp/ali-agp.c
@@ -145,7 +145,6 @@ static void *m1541_alloc_page(struct agp_bridge_data *bridge)
void *addr = agp_generic_alloc_page(agp_bridge);
u32 temp;
- global_flush_tlb();
if (!addr)
return NULL;
@@ -162,7 +161,6 @@ static void ali_destroy_page(void * addr, int flags)
if (flags & AGP_PAGE_DESTROY_UNMAP) {
global_cache_flush(); /* is this really needed? --hch */
agp_generic_destroy_page(addr, flags);
- global_flush_tlb();
} else
agp_generic_destroy_page(addr, flags);
}
diff --git a/drivers/char/agp/backend.c b/drivers/char/agp/backend.c
index 832ded20fe7..2720882e66f 100644
--- a/drivers/char/agp/backend.c
+++ b/drivers/char/agp/backend.c
@@ -147,7 +147,6 @@ static int agp_backend_initialize(struct agp_bridge_data *bridge)
printk(KERN_ERR PFX "unable to get memory for scratch page.\n");
return -ENOMEM;
}
- flush_agp_mappings();
bridge->scratch_page_real = virt_to_gart(addr);
bridge->scratch_page =
@@ -191,7 +190,6 @@ err_out:
if (bridge->driver->needs_scratch_page) {
bridge->driver->agp_destroy_page(gart_to_virt(bridge->scratch_page_real),
AGP_PAGE_DESTROY_UNMAP);
- flush_agp_mappings();
bridge->driver->agp_destroy_page(gart_to_virt(bridge->scratch_page_real),
AGP_PAGE_DESTROY_FREE);
}
@@ -219,7 +217,6 @@ static void agp_backend_cleanup(struct agp_bridge_data *bridge)
bridge->driver->needs_scratch_page) {
bridge->driver->agp_destroy_page(gart_to_virt(bridge->scratch_page_real),
AGP_PAGE_DESTROY_UNMAP);
- flush_agp_mappings();
bridge->driver->agp_destroy_page(gart_to_virt(bridge->scratch_page_real),
AGP_PAGE_DESTROY_FREE);
}
diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
index 64b2f6d7059..1a4674ce0c7 100644
--- a/drivers/char/agp/generic.c
+++ b/drivers/char/agp/generic.c
@@ -197,7 +197,6 @@ void agp_free_memory(struct agp_memory *curr)
for (i = 0; i < curr->page_count; i++) {
curr->bridge->driver->agp_destroy_page(gart_to_virt(curr->memory[i]), AGP_PAGE_DESTROY_UNMAP);
}
- flush_agp_mappings();
for (i = 0; i < curr->page_count; i++) {
curr->bridge->driver->agp_destroy_page(gart_to_virt(curr->memory[i]), AGP_PAGE_DESTROY_FREE);
}
@@ -267,8 +266,6 @@ struct agp_memory *agp_allocate_memory(struct agp_bridge_data *bridge,
}
new->bridge = bridge;
- flush_agp_mappings();
-
return new;
}
EXPORT_SYMBOL(agp_allocate_memory);
diff --git a/drivers/char/agp/i460-agp.c b/drivers/char/agp/i460-agp.c
index e72a83e2bad..76f581c85a7 100644
--- a/drivers/char/agp/i460-agp.c
+++ b/drivers/char/agp/i460-agp.c
@@ -527,7 +527,6 @@ static void *i460_alloc_page (struct agp_bridge_data *bridge)
if (I460_IO_PAGE_SHIFT <= PAGE_SHIFT) {
page = agp_generic_alloc_page(agp_bridge);
- global_flush_tlb();
} else
/* Returning NULL would cause problems */
/* AK: really dubious code. */
@@ -539,7 +538,6 @@ static void i460_destroy_page (void *page, int flags)
{
if (I460_IO_PAGE_SHIFT <= PAGE_SHIFT) {
agp_generic_destroy_page(page, flags);
- global_flush_tlb();
}
}
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index 03eac1eb8e0..189efb6ef97 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -210,13 +210,11 @@ static void *i8xx_alloc_pages(void)
if (page == NULL)
return NULL;
- if (change_page_attr(page, 4, PAGE_KERNEL_NOCACHE) < 0) {
- change_page_attr(page, 4, PAGE_KERNEL);
- global_flush_tlb();
+ if (set_pages_uc(page, 4) < 0) {
+ set_pages_wb(page, 4);
__free_pages(page, 2);
return NULL;
}
- global_flush_tlb();
get_page(page);
atomic_inc(&agp_bridge->current_memory_agp);
return page_address(page);
@@ -230,8 +228,7 @@ static void i8xx_destroy_pages(void *addr)
return;
page = virt_to_page(addr);
- change_page_attr(page, 4, PAGE_KERNEL);
- global_flush_tlb();
+ set_pages_wb(page, 4);
put_page(page);
__free_pages(page, 2);
atomic_dec(&agp_bridge->current_memory_agp);
@@ -341,7 +338,6 @@ static struct agp_memory *alloc_agpphysmem_i8xx(size_t pg_count, int type)
switch (pg_count) {
case 1: addr = agp_bridge->driver->agp_alloc_page(agp_bridge);
- global_flush_tlb();
break;
case 4:
/* kludge to get 4 physical pages for ARGB cursor */
@@ -404,7 +400,6 @@ static void intel_i810_free_by_type(struct agp_memory *curr)
else {
agp_bridge->driver->agp_destroy_page(gart_to_virt(curr->memory[0]),
AGP_PAGE_DESTROY_UNMAP);
- global_flush_tlb();
agp_bridge->driver->agp_destroy_page(gart_to_virt(curr->memory[0]),
AGP_PAGE_DESTROY_FREE);
}
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 4c16778e3f8..465ad35ed38 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -600,63 +600,6 @@ static int hpet_is_known(struct hpet_data *hdp)
return 0;
}
-EXPORT_SYMBOL(hpet_alloc);
-EXPORT_SYMBOL(hpet_register);
-EXPORT_SYMBOL(hpet_unregister);
-EXPORT_SYMBOL(hpet_control);
-
-int hpet_register(struct hpet_task *tp, int periodic)
-{
- unsigned int i;
- u64 mask;
- struct hpet_timer __iomem *timer;
- struct hpet_dev *devp;
- struct hpets *hpetp;
-
- switch (periodic) {
- case 1:
- mask = Tn_PER_INT_CAP_MASK;
- break;
- case 0:
- mask = 0;
- break;
- default:
- return -EINVAL;
- }
-
- tp->ht_opaque = NULL;
-
- spin_lock_irq(&hpet_task_lock);
- spin_lock(&hpet_lock);
-
- for (devp = NULL, hpetp = hpets; hpetp && !devp; hpetp = hpetp->hp_next)
- for (timer = hpetp->hp_hpet->hpet_timers, i = 0;
- i < hpetp->hp_ntimer; i++, timer++) {
- if ((readq(&timer->hpet_config) & Tn_PER_INT_CAP_MASK)
- != mask)
- continue;
-
- devp = &hpetp->hp_dev[i];
-
- if (devp->hd_flags & HPET_OPEN || devp->hd_task) {
- devp = NULL;
- continue;
- }
-
- tp->ht_opaque = devp;
- devp->hd_task = tp;
- break;
- }
-
- spin_unlock(&hpet_lock);
- spin_unlock_irq(&hpet_task_lock);
-
- if (tp->ht_opaque)
- return 0;
- else
- return -EBUSY;
-}
-
static inline int hpet_tpcheck(struct hpet_task *tp)
{
struct hpet_dev *devp;
@@ -706,24 +649,6 @@ int hpet_unregister(struct hpet_task *tp)
return 0;
}
-int hpet_control(struct hpet_task *tp, unsigned int cmd, unsigned long arg)
-{
- struct hpet_dev *devp;
- int err;
-
- if ((err = hpet_tpcheck(tp)))
- return err;
-
- spin_lock_irq(&hpet_lock);
- devp = tp->ht_opaque;
- if (devp->hd_task != tp) {
- spin_unlock_irq(&hpet_lock);
- return -ENXIO;
- }
- spin_unlock_irq(&hpet_lock);
- return hpet_ioctl_common(devp, cmd, arg, 1);
-}
-
static ctl_table hpet_table[] = {
{
.ctl_name = CTL_UNNUMBERED,
@@ -806,14 +731,14 @@ static unsigned long hpet_calibrate(struct hpets *hpetp)
int hpet_alloc(struct hpet_data *hdp)
{
- u64 cap, mcfg;
+ u64 cap, mcfg, hpet_config;
struct hpet_dev *devp;
- u32 i, ntimer;
+ u32 i, ntimer, irq;
struct hpets *hpetp;
size_t siz;
struct hpet __iomem *hpet;
static struct hpets *last = NULL;
- unsigned long period;
+ unsigned long period, irq_bitmap;
unsigned long long temp;
/*
@@ -840,11 +765,47 @@ int hpet_alloc(struct hpet_data *hdp)
hpetp->hp_hpet_phys = hdp->hd_phys_address;
hpetp->hp_ntimer = hdp->hd_nirqs;
+ hpet = hpetp->hp_hpet;
- for (i = 0; i < hdp->hd_nirqs; i++)
- hpetp->hp_dev[i].hd_hdwirq = hdp->hd_irq[i];
+ /* Assign IRQs statically for legacy devices */
+ hpetp->hp_dev[0].hd_hdwirq = hdp->hd_irq[0];
+ hpetp->hp_dev[1].hd_hdwirq = hdp->hd_irq[1];
- hpet = hpetp->hp_hpet;
+ /* Assign IRQs dynamically for the others */
+ for (i = 2, devp = &hpetp->hp_dev[2]; i < hdp->hd_nirqs; i++, devp++) {
+ struct hpet_timer __iomem *timer;
+
+ timer = &hpet->hpet_timers[devp - hpetp->hp_dev];
+
+ /* Check if there's already an IRQ assigned to the timer */
+ if (hdp->hd_irq[i]) {
+ hpetp->hp_dev[i].hd_hdwirq = hdp->hd_irq[i];
+ continue;
+ }
+
+ hpet_config = readq(&timer->hpet_config);
+ irq_bitmap = (hpet_config & Tn_INT_ROUTE_CAP_MASK)
+ >> Tn_INT_ROUTE_CAP_SHIFT;
+ if (!irq_bitmap)
+ irq = 0; /* No valid IRQ Assignable */
+ else {
+ irq = find_first_bit(&irq_bitmap, 32);
+ do {
+ hpet_config |= irq << Tn_INT_ROUTE_CNF_SHIFT;
+ writeq(hpet_config, &timer->hpet_config);
+
+ /*
+ * Verify whether we have written a valid
+ * IRQ number by reading it back again
+ */
+ hpet_config = readq(&timer->hpet_config);
+ if (irq == (hpet_config & Tn_INT_ROUTE_CNF_MASK)
+ >> Tn_INT_ROUTE_CNF_SHIFT)
+ break; /* Success */
+ } while ((irq = (find_next_bit(&irq_bitmap, 32, irq))));
+ }
+ hpetp->hp_dev[i].hd_hdwirq = irq;
+ }
cap = readq(&hpet->hpet_cap);
@@ -875,7 +836,8 @@ int hpet_alloc(struct hpet_data *hdp)
hpetp->hp_which, hdp->hd_phys_address,
hpetp->hp_ntimer > 1 ? "s" : "");
for (i = 0; i < hpetp->hp_ntimer; i++)
- printk("%s %d", i > 0 ? "," : "", hdp->hd_irq[i]);
+ printk("%s %d", i > 0 ? "," : "",
+ hpetp->hp_dev[i].hd_hdwirq);
printk("\n");
printk(KERN_INFO "hpet%u: %u %d-bit timers, %Lu Hz\n",
diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index 0c66b802736..78b151c4d20 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -1,5 +1,5 @@
/*
- * Real Time Clock interface for Linux
+ * Real Time Clock interface for Linux
*
* Copyright (C) 1996 Paul Gortmaker
*
@@ -17,7 +17,7 @@
* has been received. If a RTC interrupt has already happened,
* it will output an unsigned long and then block. The output value
* contains the interrupt status in the low byte and the number of
- * interrupts since the last read in the remaining high bytes. The
+ * interrupts since the last read in the remaining high bytes. The
* /dev/rtc interface can also be used with the select(2) call.
*
* This program is free software; you can redistribute it and/or
@@ -104,12 +104,14 @@ static int rtc_has_irq = 1;
#ifndef CONFIG_HPET_EMULATE_RTC
#define is_hpet_enabled() 0
-#define hpet_set_alarm_time(hrs, min, sec) 0
-#define hpet_set_periodic_freq(arg) 0
-#define hpet_mask_rtc_irq_bit(arg) 0
-#define hpet_set_rtc_irq_bit(arg) 0
-#define hpet_rtc_timer_init() do { } while (0)
-#define hpet_rtc_dropped_irq() 0
+#define hpet_set_alarm_time(hrs, min, sec) 0
+#define hpet_set_periodic_freq(arg) 0
+#define hpet_mask_rtc_irq_bit(arg) 0
+#define hpet_set_rtc_irq_bit(arg) 0
+#define hpet_rtc_timer_init() do { } while (0)
+#define hpet_rtc_dropped_irq() 0
+#define hpet_register_irq_handler(h) 0
+#define hpet_unregister_irq_handler(h) 0
#ifdef RTC_IRQ
static irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id)
{
@@ -147,7 +149,7 @@ static int rtc_ioctl(struct inode *inode, struct file *file,
static unsigned int rtc_poll(struct file *file, poll_table *wait);
#endif
-static void get_rtc_alm_time (struct rtc_time *alm_tm);
+static void get_rtc_alm_time(struct rtc_time *alm_tm);
#ifdef RTC_IRQ
static void set_rtc_irq_bit_locked(unsigned char bit);
static void mask_rtc_irq_bit_locked(unsigned char bit);
@@ -185,9 +187,9 @@ static int rtc_proc_open(struct inode *inode, struct file *file);
* rtc_status but before mod_timer is called, which would then reenable the
* timer (but you would need to have an awful timing before you'd trip on it)
*/
-static unsigned long rtc_status = 0; /* bitmapped status byte. */
-static unsigned long rtc_freq = 0; /* Current periodic IRQ rate */
-static unsigned long rtc_irq_data = 0; /* our output to the world */
+static unsigned long rtc_status; /* bitmapped status byte. */
+static unsigned long rtc_freq; /* Current periodic IRQ rate */
+static unsigned long rtc_irq_data; /* our output to the world */
static unsigned long rtc_max_user_freq = 64; /* > this, need CAP_SYS_RESOURCE */
#ifdef RTC_IRQ
@@ -195,7 +197,7 @@ static unsigned long rtc_max_user_freq = 64; /* > this, need CAP_SYS_RESOURCE */
* rtc_task_lock nests inside rtc_lock.
*/
static DEFINE_SPINLOCK(rtc_task_lock);
-static rtc_task_t *rtc_callback = NULL;
+static rtc_task_t *rtc_callback;
#endif
/*
@@ -205,7 +207,7 @@ static rtc_task_t *rtc_callback = NULL;
static unsigned long epoch = 1900; /* year corresponding to 0x00 */
-static const unsigned char days_in_mo[] =
+static const unsigned char days_in_mo[] =
{0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
/*
@@ -242,7 +244,7 @@ irqreturn_t rtc_interrupt(int irq, void *dev_id)
* the last read in the remainder of rtc_irq_data.
*/
- spin_lock (&rtc_lock);
+ spin_lock(&rtc_lock);
rtc_irq_data += 0x100;
rtc_irq_data &= ~0xff;
if (is_hpet_enabled()) {
@@ -259,16 +261,16 @@ irqreturn_t rtc_interrupt(int irq, void *dev_id)
if (rtc_status & RTC_TIMER_ON)
mod_timer(&rtc_irq_timer, jiffies + HZ/rtc_freq + 2*HZ/100);
- spin_unlock (&rtc_lock);
+ spin_unlock(&rtc_lock);
/* Now do the rest of the actions */
spin_lock(&rtc_task_lock);
if (rtc_callback)
rtc_callback->func(rtc_callback->private_data);
spin_unlock(&rtc_task_lock);
- wake_up_interruptible(&rtc_wait);
+ wake_up_interruptible(&rtc_wait);
- kill_fasync (&rtc_async_queue, SIGIO, POLL_IN);
+ kill_fasync(&rtc_async_queue, SIGIO, POLL_IN);
return IRQ_HANDLED;
}
@@ -335,7 +337,7 @@ static ssize_t rtc_read(struct file *file, char __user *buf,
DECLARE_WAITQUEUE(wait, current);
unsigned long data;
ssize_t retval;
-
+
if (rtc_has_irq == 0)
return -EIO;
@@ -358,11 +360,11 @@ static ssize_t rtc_read(struct file *file, char __user *buf,
* confusing. And no, xchg() is not the answer. */
__set_current_state(TASK_INTERRUPTIBLE);
-
- spin_lock_irq (&rtc_lock);
+
+ spin_lock_irq(&rtc_lock);
data = rtc_irq_data;
rtc_irq_data = 0;
- spin_unlock_irq (&rtc_lock);
+ spin_unlock_irq(&rtc_lock);
if (data != 0)
break;
@@ -378,10 +380,13 @@ static ssize_t rtc_read(struct file *file, char __user *buf,
schedule();
} while (1);
- if (count == sizeof(unsigned int))
- retval = put_user(data, (unsigned int __user *)buf) ?: sizeof(int);
- else
- retval = put_user(data, (unsigned long __user *)buf) ?: sizeof(long);
+ if (count == sizeof(unsigned int)) {
+ retval = put_user(data,
+ (unsigned int __user *)buf) ?: sizeof(int);
+ } else {
+ retval = put_user(data,
+ (unsigned long __user *)buf) ?: sizeof(long);
+ }
if (!retval)
retval = count;
out:
@@ -394,7 +399,7 @@ static ssize_t rtc_read(struct file *file, char __user *buf,
static int rtc_do_ioctl(unsigned int cmd, unsigned long arg, int kernel)
{
- struct rtc_time wtime;
+ struct rtc_time wtime;
#ifdef RTC_IRQ
if (rtc_has_irq == 0) {
@@ -426,35 +431,41 @@ static int rtc_do_ioctl(unsigned int cmd, unsigned long arg, int kernel)
}
case RTC_PIE_OFF: /* Mask periodic int. enab. bit */
{
- unsigned long flags; /* can be called from isr via rtc_control() */
- spin_lock_irqsave (&rtc_lock, flags);
+ /* can be called from isr via rtc_control() */
+ unsigned long flags;
+
+ spin_lock_irqsave(&rtc_lock, flags);
mask_rtc_irq_bit_locked(RTC_PIE);
if (rtc_status & RTC_TIMER_ON) {
rtc_status &= ~RTC_TIMER_ON;
del_timer(&rtc_irq_timer);
}
- spin_unlock_irqrestore (&rtc_lock, flags);
+ spin_unlock_irqrestore(&rtc_lock, flags);
+
return 0;
}
case RTC_PIE_ON: /* Allow periodic ints */
{
- unsigned long flags; /* can be called from isr via rtc_control() */
+ /* can be called from isr via rtc_control() */
+ unsigned long flags;
+
/*
* We don't really want Joe User enabling more
* than 64Hz of interrupts on a multi-user machine.
*/
if (!kernel && (rtc_freq > rtc_max_user_freq) &&
- (!capable(CAP_SYS_RESOURCE)))
+ (!capable(CAP_SYS_RESOURCE)))
return -EACCES;
- spin_lock_irqsave (&rtc_lock, flags);
+ spin_lock_irqsave(&rtc_lock, flags);
if (!(rtc_status & RTC_TIMER_ON)) {
mod_timer(&rtc_irq_timer, jiffies + HZ/rtc_freq +
2*HZ/100);
rtc_status |= RTC_TIMER_ON;
}
set_rtc_irq_bit_locked(RTC_PIE);
- spin_unlock_irqrestore (&rtc_lock, flags);
+ spin_unlock_irqrestore(&rtc_lock, flags);
+
return 0;
}
case RTC_UIE_OFF: /* Mask ints from RTC updates. */
@@ -477,7 +488,7 @@ static int rtc_do_ioctl(unsigned int cmd, unsigned long arg, int kernel)
*/
memset(&wtime, 0, sizeof(struct rtc_time));
get_rtc_alm_time(&wtime);
- break;
+ break;
}
case RTC_ALM_SET: /* Store a time into the alarm */
{
@@ -505,16 +516,21 @@ static int rtc_do_ioctl(unsigned int cmd, unsigned long arg, int kernel)
*/
}
if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) ||
- RTC_ALWAYS_BCD)
- {
- if (sec < 60) BIN_TO_BCD(sec);
- else sec = 0xff;
-
- if (min < 60) BIN_TO_BCD(min);
- else min = 0xff;
-
- if (hrs < 24) BIN_TO_BCD(hrs);
- else hrs = 0xff;
+ RTC_ALWAYS_BCD) {
+ if (sec < 60)
+ BIN_TO_BCD(sec);
+ else
+ sec = 0xff;
+
+ if (min < 60)
+ BIN_TO_BCD(min);
+ else
+ min = 0xff;
+
+ if (hrs < 24)
+ BIN_TO_BCD(hrs);
+ else
+ hrs = 0xff;
}
CMOS_WRITE(hrs, RTC_HOURS_ALARM);
CMOS_WRITE(min, RTC_MINUTES_ALARM);
@@ -563,11 +579,12 @@ static int rtc_do_ioctl(unsigned int cmd, unsigned long arg, int kernel)
if (day > (days_in_mo[mon] + ((mon == 2) && leap_yr)))
return -EINVAL;
-
+
if ((hrs >= 24) || (min >= 60) || (sec >= 60))
return -EINVAL;
- if ((yrs -= epoch) > 255) /* They are unsigned */
+ yrs -= epoch;
+ if (yrs > 255) /* They are unsigned */
return -EINVAL;
spin_lock_irq(&rtc_lock);
@@ -635,9 +652,10 @@ static int rtc_do_ioctl(unsigned int cmd, unsigned long arg, int kernel)
{
int tmp = 0;
unsigned char val;
- unsigned long flags; /* can be called from isr via rtc_control() */
+ /* can be called from isr via rtc_control() */
+ unsigned long flags;
- /*
+ /*
* The max we can do is 8192Hz.
*/
if ((arg < 2) || (arg > 8192))
@@ -646,7 +664,8 @@ static int rtc_do_ioctl(unsigned int cmd, unsigned long arg, int kernel)
* We don't really want Joe User generating more
* than 64Hz of interrupts on a multi-user machine.
*/
- if (!kernel && (arg > rtc_max_user_freq) && (!capable(CAP_SYS_RESOURCE)))
+ if (!kernel && (arg > rtc_max_user_freq) &&
+ !capable(CAP_SYS_RESOURCE))
return -EACCES;
while (arg > (1<<tmp))
@@ -674,11 +693,11 @@ static int rtc_do_ioctl(unsigned int cmd, unsigned long arg, int kernel)
#endif
case RTC_EPOCH_READ: /* Read the epoch. */
{
- return put_user (epoch, (unsigned long __user *)arg);
+ return put_user(epoch, (unsigned long __user *)arg);
}
case RTC_EPOCH_SET: /* Set the epoch. */
{
- /*
+ /*
* There were no RTC clocks before 1900.
*/
if (arg < 1900)
@@ -693,7 +712,8 @@ static int rtc_do_ioctl(unsigned int cmd, unsigned long arg, int kernel)
default:
return -ENOTTY;
}
- return copy_to_user((void __user *)arg, &wtime, sizeof wtime) ? -EFAULT : 0;
+ return copy_to_user((void __user *)arg,
+ &wtime, sizeof wtime) ? -EFAULT : 0;
}
static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
@@ -712,26 +732,25 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
* needed here. Or anywhere else in this driver. */
static int rtc_open(struct inode *inode, struct file *file)
{
- spin_lock_irq (&rtc_lock);
+ spin_lock_irq(&rtc_lock);
- if(rtc_status & RTC_IS_OPEN)
+ if (rtc_status & RTC_IS_OPEN)
goto out_busy;
rtc_status |= RTC_IS_OPEN;
rtc_irq_data = 0;
- spin_unlock_irq (&rtc_lock);
+ spin_unlock_irq(&rtc_lock);
return 0;
out_busy:
- spin_unlock_irq (&rtc_lock);
+ spin_unlock_irq(&rtc_lock);
return -EBUSY;
}
-static int rtc_fasync (int fd, struct file *filp, int on)
-
+static int rtc_fasync(int fd, struct file *filp, int on)
{
- return fasync_helper (fd, filp, on, &rtc_async_queue);
+ return fasync_helper(fd, filp, on, &rtc_async_queue);
}
static int rtc_release(struct inode *inode, struct file *file)
@@ -762,16 +781,16 @@ static int rtc_release(struct inode *inode, struct file *file)
}
spin_unlock_irq(&rtc_lock);
- if (file->f_flags & FASYNC) {
- rtc_fasync (-1, file, 0);
- }
+ if (file->f_flags & FASYNC)
+ rtc_fasync(-1, file, 0);
no_irq:
#endif
- spin_lock_irq (&rtc_lock);
+ spin_lock_irq(&rtc_lock);
rtc_irq_data = 0;
rtc_status &= ~RTC_IS_OPEN;
- spin_unlock_irq (&rtc_lock);
+ spin_unlock_irq(&rtc_lock);
+
return 0;
}
@@ -786,9 +805,9 @@ static unsigned int rtc_poll(struct file *file, poll_table *wait)
poll_wait(file, &rtc_wait, wait);
- spin_lock_irq (&rtc_lock);
+ spin_lock_irq(&rtc_lock);
l = rtc_irq_data;
- spin_unlock_irq (&rtc_lock);
+ spin_unlock_irq(&rtc_lock);
if (l != 0)
return POLLIN | POLLRDNORM;
@@ -796,14 +815,6 @@ static unsigned int rtc_poll(struct file *file, poll_table *wait)
}
#endif
-/*
- * exported stuffs
- */
-
-EXPORT_SYMBOL(rtc_register);
-EXPORT_SYMBOL(rtc_unregister);
-EXPORT_SYMBOL(rtc_control);
-
int rtc_register(rtc_task_t *task)
{
#ifndef RTC_IRQ
@@ -829,6 +840,7 @@ int rtc_register(rtc_task_t *task)
return 0;
#endif
}
+EXPORT_SYMBOL(rtc_register);
int rtc_unregister(rtc_task_t *task)
{
@@ -845,7 +857,7 @@ int rtc_unregister(rtc_task_t *task)
return -ENXIO;
}
rtc_callback = NULL;
-
+
/* disable controls */
if (!hpet_mask_rtc_irq_bit(RTC_PIE | RTC_AIE | RTC_UIE)) {
tmp = CMOS_READ(RTC_CONTROL);
@@ -865,6 +877,7 @@ int rtc_unregister(rtc_task_t *task)
return 0;
#endif
}
+EXPORT_SYMBOL(rtc_unregister);
int rtc_control(rtc_task_t *task, unsigned int cmd, unsigned long arg)
{
@@ -883,7 +896,7 @@ int rtc_control(rtc_task_t *task, unsigned int cmd, unsigned long arg)
return rtc_do_ioctl(cmd, arg, 1);
#endif
}
-
+EXPORT_SYMBOL(rtc_control);
/*
* The various file operations we support.
@@ -910,11 +923,11 @@ static struct miscdevice rtc_dev = {
#ifdef CONFIG_PROC_FS
static const struct file_operations rtc_proc_fops = {
- .owner = THIS_MODULE,
- .open = rtc_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
+ .owner = THIS_MODULE,
+ .open = rtc_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
};
#endif
@@ -965,7 +978,7 @@ static int __init rtc_init(void)
#ifdef CONFIG_SPARC32
for_each_ebus(ebus) {
for_each_ebusdev(edev, ebus) {
- if(strcmp(edev->prom_node->name, "rtc") == 0) {
+ if (strcmp(edev->prom_node->name, "rtc") == 0) {
rtc_port = edev->resource[0].start;
rtc_irq = edev->irqs[0];
goto found;
@@ -986,7 +999,8 @@ found:
* XXX Interrupt pin #7 in Espresso is shared between RTC and
* PCI Slot 2 INTA# (and some INTx# in Slot 1).
*/
- if (request_irq(rtc_irq, rtc_interrupt, IRQF_SHARED, "rtc", (void *)&rtc_port)) {
+ if (request_irq(rtc_irq, rtc_interrupt, IRQF_SHARED, "rtc",
+ (void *)&rtc_port)) {
rtc_has_irq = 0;
printk(KERN_ERR "rtc: cannot register IRQ %d\n", rtc_irq);
return -EIO;
@@ -1015,16 +1029,26 @@ no_irq:
#ifdef RTC_IRQ
if (is_hpet_enabled()) {
+ int err;
+
rtc_int_handler_ptr = hpet_rtc_interrupt;
+ err = hpet_register_irq_handler(rtc_interrupt);
+ if (err != 0) {
+ printk(KERN_WARNING "hpet_register_irq_handler failed "
+ "in rtc_init().");
+ return err;
+ }
} else {
rtc_int_handler_ptr = rtc_interrupt;
}
- if(request_irq(RTC_IRQ, rtc_int_handler_ptr, IRQF_DISABLED, "rtc", NULL)) {
+ if (request_irq(RTC_IRQ, rtc_int_handler_ptr, IRQF_DISABLED,
+ "rtc", NULL)) {
/* Yeah right, seeing as irq 8 doesn't even hit the bus. */
rtc_has_irq = 0;
printk(KERN_ERR "rtc: IRQ %d is not free.\n", RTC_IRQ);
rtc_release_region();
+
return -EIO;
}
hpet_rtc_timer_init();
@@ -1036,6 +1060,7 @@ no_irq:
if (misc_register(&rtc_dev)) {
#ifdef RTC_IRQ
free_irq(RTC_IRQ, NULL);
+ hpet_unregister_irq_handler(rtc_interrupt);
rtc_has_irq = 0;
#endif
rtc_release_region();
@@ -1052,21 +1077,21 @@ no_irq:
#if defined(__alpha__) || defined(__mips__)
rtc_freq = HZ;
-
+
/* Each operating system on an Alpha uses its own epoch.
Let's try to guess which one we are using now. */
-
+
if (rtc_is_updating() != 0)
msleep(20);
-
+
spin_lock_irq(&rtc_lock);
year = CMOS_READ(RTC_YEAR);
ctrl = CMOS_READ(RTC_CONTROL);
spin_unlock_irq(&rtc_lock);
-
+
if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
BCD_TO_BIN(year); /* This should never happen... */
-
+
if (year < 20) {
epoch = 2000;
guess = "SRM (post-2000)";
@@ -1087,7 +1112,8 @@ no_irq:
#endif
}
if (guess)
- printk(KERN_INFO "rtc: %s epoch (%lu) detected\n", guess, epoch);
+ printk(KERN_INFO "rtc: %s epoch (%lu) detected\n",
+ guess, epoch);
#endif
#ifdef RTC_IRQ
if (rtc_has_irq == 0)
@@ -1096,8 +1122,12 @@ no_irq:
spin_lock_irq(&rtc_lock);
rtc_freq = 1024;
if (!hpet_set_periodic_freq(rtc_freq)) {
- /* Initialize periodic freq. to CMOS reset default, which is 1024Hz */
- CMOS_WRITE(((CMOS_READ(RTC_FREQ_SELECT) & 0xF0) | 0x06), RTC_FREQ_SELECT);
+ /*
+ * Initialize periodic frequency to CMOS reset default,
+ * which is 1024Hz
+ */
+ CMOS_WRITE(((CMOS_READ(RTC_FREQ_SELECT) & 0xF0) | 0x06),
+ RTC_FREQ_SELECT);
}
spin_unlock_irq(&rtc_lock);
no_irq2:
@@ -1110,20 +1140,22 @@ no_irq2:
return 0;
}
-static void __exit rtc_exit (void)
+static void __exit rtc_exit(void)
{
cleanup_sysctl();
- remove_proc_entry ("driver/rtc", NULL);
+ remove_proc_entry("driver/rtc", NULL);
misc_deregister(&rtc_dev);
#ifdef CONFIG_SPARC32
if (rtc_has_irq)
- free_irq (rtc_irq, &rtc_port);
+ free_irq(rtc_irq, &rtc_port);
#else
rtc_release_region();
#ifdef RTC_IRQ
- if (rtc_has_irq)
- free_irq (RTC_IRQ, NULL);
+ if (rtc_has_irq) {
+ free_irq(RTC_IRQ, NULL);
+ hpet_unregister_irq_handler(hpet_rtc_interrupt);
+ }
#endif
#endif /* CONFIG_SPARC32 */
}
@@ -1133,14 +1165,14 @@ module_exit(rtc_exit);
#ifdef RTC_IRQ
/*
- * At IRQ rates >= 4096Hz, an interrupt may get lost altogether.
+ * At IRQ rates >= 4096Hz, an interrupt may get lost altogether.
* (usually during an IDE disk interrupt, with IRQ unmasking off)
* Since the interrupt handler doesn't get called, the IRQ status
* byte doesn't get read, and the RTC stops generating interrupts.
* A timer is set, and will call this function if/when that happens.
* To get it out of this stalled state, we just read the status.
* At least a jiffy of interrupts (rtc_freq/HZ) will have been lost.
- * (You *really* shouldn't be trying to use a non-realtime system
+ * (You *really* shouldn't be trying to use a non-realtime system
* for something that requires a steady > 1KHz signal anyways.)
*/
@@ -1148,7 +1180,7 @@ static void rtc_dropped_irq(unsigned long data)
{
unsigned long freq;
- spin_lock_irq (&rtc_lock);
+ spin_lock_irq(&rtc_lock);
if (hpet_rtc_dropped_irq()) {
spin_unlock_irq(&rtc_lock);
@@ -1167,13 +1199,15 @@ static void rtc_dropped_irq(unsigned long data)
spin_unlock_irq(&rtc_lock);
- if (printk_ratelimit())
- printk(KERN_WARNING "rtc: lost some interrupts at %ldHz.\n", freq);
+ if (printk_ratelimit()) {
+ printk(KERN_WARNING "rtc: lost some interrupts at %ldHz.\n",
+ freq);
+ }
/* Now we have new data */
wake_up_interruptible(&rtc_wait);
- kill_fasync (&rtc_async_queue, SIGIO, POLL_IN);
+ kill_fasync(&rtc_async_queue, SIGIO, POLL_IN);
}
#endif
@@ -1277,7 +1311,7 @@ void rtc_get_rtc_time(struct rtc_time *rtc_tm)
* can take just over 2ms. We wait 20ms. There is no need to
* to poll-wait (up to 1s - eeccch) for the falling edge of RTC_UIP.
* If you need to know *exactly* when a second has started, enable
- * periodic update complete interrupts, (via ioctl) and then
+ * periodic update complete interrupts, (via ioctl) and then
* immediately read /dev/rtc which will block until you get the IRQ.
* Once the read clears, read the RTC time (again via ioctl). Easy.
*/
@@ -1307,8 +1341,7 @@ void rtc_get_rtc_time(struct rtc_time *rtc_tm)
ctrl = CMOS_READ(RTC_CONTROL);
spin_unlock_irqrestore(&rtc_lock, flags);
- if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
- {
+ if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
BCD_TO_BIN(rtc_tm->tm_sec);
BCD_TO_BIN(rtc_tm->tm_min);
BCD_TO_BIN(rtc_tm->tm_hour);
@@ -1326,7 +1359,8 @@ void rtc_get_rtc_time(struct rtc_time *rtc_tm)
* Account for differences between how the RTC uses the values
* and how they are defined in a struct rtc_time;
*/
- if ((rtc_tm->tm_year += (epoch - 1900)) <= 69)
+ rtc_tm->tm_year += epoch - 1900;
+ if (rtc_tm->tm_year <= 69)
rtc_tm->tm_year += 100;
rtc_tm->tm_mon--;
@@ -1347,8 +1381,7 @@ static void get_rtc_alm_time(struct rtc_time *alm_tm)
ctrl = CMOS_READ(RTC_CONTROL);
spin_unlock_irq(&rtc_lock);
- if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
- {
+ if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
BCD_TO_BIN(alm_tm->tm_sec);
BCD_TO_BIN(alm_tm->tm_min);
BCD_TO_BIN(alm_tm->tm_hour);
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 5efd5550f4c..b730d670952 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1604,7 +1604,7 @@ static int __cpufreq_set_policy(struct cpufreq_policy *data,
memcpy(&policy->cpuinfo, &data->cpuinfo,
sizeof(struct cpufreq_cpuinfo));
- if (policy->min > data->min && policy->min > policy->max) {
+ if (policy->min > data->max || policy->max < data->min) {
ret = -EINVAL;
goto error_out;
}
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index 5e596a7e360..9008ed5ef4c 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -8,6 +8,8 @@
#include <linux/slab.h>
#include <asm/dmi.h>
+static char dmi_empty_string[] = " ";
+
static char * __init dmi_string(const struct dmi_header *dm, u8 s)
{
const u8 *bp = ((u8 *) dm) + dm->length;
@@ -21,11 +23,16 @@ static char * __init dmi_string(const struct dmi_header *dm, u8 s)
}
if (*bp != 0) {
- str = dmi_alloc(strlen(bp) + 1);
+ size_t len = strlen(bp)+1;
+ size_t cmp_len = len > 8 ? 8 : len;
+
+ if (!memcmp(bp, dmi_empty_string, cmp_len))
+ return dmi_empty_string;
+ str = dmi_alloc(len);
if (str != NULL)
strcpy(str, bp);
else
- printk(KERN_ERR "dmi_string: out of memory.\n");
+ printk(KERN_ERR "dmi_string: cannot allocate %Zu bytes.\n", len);
}
}
@@ -175,12 +182,23 @@ static void __init dmi_save_devices(const struct dmi_header *dm)
}
}
+static struct dmi_device empty_oem_string_dev = {
+ .name = dmi_empty_string,
+};
+
static void __init dmi_save_oem_strings_devices(const struct dmi_header *dm)
{
int i, count = *(u8 *)(dm + 1);
struct dmi_device *dev;
for (i = 1; i <= count; i++) {
+ char *devname = dmi_string(dm, i);
+
+ if (!strcmp(devname, dmi_empty_string)) {
+ list_add(&empty_oem_string_dev.list, &dmi_devices);
+ continue;
+ }
+
dev = dmi_alloc(sizeof(*dev));
if (!dev) {
printk(KERN_ERR
@@ -189,7 +207,7 @@ static void __init dmi_save_oem_strings_devices(const struct dmi_header *dm)
}
dev->type = DMI_DEV_TYPE_OEM_STRING;
- dev->name = dmi_string(dm, i);
+ dev->name = devname;
dev->device_data = NULL;
list_add(&dev->list, &dmi_devices);
@@ -331,9 +349,11 @@ void __init dmi_scan_machine(void)
rc = dmi_present(q);
if (!rc) {
dmi_available = 1;
+ dmi_iounmap(p, 0x10000);
return;
}
}
+ dmi_iounmap(p, 0x10000);
}
out: printk(KERN_INFO "DMI not present or invalid.\n");
}
diff --git a/drivers/ieee1394/Makefile b/drivers/ieee1394/Makefile
index 489c133664d..1f8153b5750 100644
--- a/drivers/ieee1394/Makefile
+++ b/drivers/ieee1394/Makefile
@@ -15,3 +15,4 @@ obj-$(CONFIG_IEEE1394_SBP2) += sbp2.o
obj-$(CONFIG_IEEE1394_DV1394) += dv1394.o
obj-$(CONFIG_IEEE1394_ETH1394) += eth1394.o
+obj-$(CONFIG_PROVIDE_OHCI1394_DMA_INIT) += init_ohci1394_dma.o
diff --git a/drivers/ieee1394/init_ohci1394_dma.c b/drivers/ieee1394/init_ohci1394_dma.c
new file mode 100644
index 00000000000..ddaab6eb8ac
--- /dev/null
+++ b/drivers/ieee1394/init_ohci1394_dma.c
@@ -0,0 +1,285 @@
+/*
+ * init_ohci1394_dma.c - Initializes physical DMA on all OHCI 1394 controllers
+ *
+ * Copyright (C) 2006-2007 Bernhard Kaindl <bk@suse.de>
+ *
+ * Derived from drivers/ieee1394/ohci1394.c and arch/x86/kernel/early-quirks.c
+ * this file has functions to:
+ * - scan the PCI very early on boot for all OHCI 1394-compliant controllers
+ * - reset and initialize them and make them join the IEEE1394 bus and
+ * - enable physical DMA on them to allow remote debugging
+ *
+ * All code and data is marked as __init and __initdata, respective as
+ * during boot, all OHCI1394 controllers may be claimed by the firewire
+ * stack and at this point, this code should not touch them anymore.
+ *
+ * To use physical DMA after the initialization of the firewire stack,
+ * be sure that the stack enables it and (re-)attach after the bus reset
+ * which may be caused by the firewire stack initialization.
+ *
+ * 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/interrupt.h> /* for ohci1394.h */
+#include <linux/delay.h>
+#include <linux/pci.h> /* for PCI defines */
+#include <linux/init_ohci1394_dma.h>
+#include <asm/pci-direct.h> /* for direct PCI config space access */
+#include <asm/fixmap.h>
+
+#include "ieee1394_types.h"
+#include "ohci1394.h"
+
+int __initdata init_ohci1394_dma_early;
+
+/* Reads a PHY register of an OHCI-1394 controller */
+static inline u8 __init get_phy_reg(struct ti_ohci *ohci, u8 addr)
+{
+ int i;
+ quadlet_t r;
+
+ reg_write(ohci, OHCI1394_PhyControl, (addr << 8) | 0x00008000);
+
+ for (i = 0; i < OHCI_LOOP_COUNT; i++) {
+ if (reg_read(ohci, OHCI1394_PhyControl) & 0x80000000)
+ break;
+ mdelay(1);
+ }
+ r = reg_read(ohci, OHCI1394_PhyControl);
+
+ return (r & 0x00ff0000) >> 16;
+}
+
+/* Writes to a PHY register of an OHCI-1394 controller */
+static inline void __init set_phy_reg(struct ti_ohci *ohci, u8 addr, u8 data)
+{
+ int i;
+
+ reg_write(ohci, OHCI1394_PhyControl, (addr << 8) | data | 0x00004000);
+
+ for (i = 0; i < OHCI_LOOP_COUNT; i++) {
+ u32 r = reg_read(ohci, OHCI1394_PhyControl);
+ if (!(r & 0x00004000))
+ break;
+ mdelay(1);
+ }
+}
+
+/* Resets an OHCI-1394 controller (for sane state before initialization) */
+static inline void __init init_ohci1394_soft_reset(struct ti_ohci *ohci) {
+ int i;
+
+ reg_write(ohci, OHCI1394_HCControlSet, OHCI1394_HCControl_softReset);
+
+ for (i = 0; i < OHCI_LOOP_COUNT; i++) {
+ if (!(reg_read(ohci, OHCI1394_HCControlSet)
+ & OHCI1394_HCControl_softReset))
+ break;
+ mdelay(1);
+ }
+}
+
+/* Basic OHCI-1394 register and port inititalization */
+static inline void __init init_ohci1394_initialize(struct ti_ohci *ohci)
+{
+ quadlet_t bus_options;
+ int num_ports, i;
+
+ /* Put some defaults to these undefined bus options */
+ bus_options = reg_read(ohci, OHCI1394_BusOptions);
+ bus_options |= 0x60000000; /* Enable CMC and ISC */
+ bus_options &= ~0x00ff0000; /* XXX: Set cyc_clk_acc to zero for now */
+ bus_options &= ~0x18000000; /* Disable PMC and BMC */
+ reg_write(ohci, OHCI1394_BusOptions, bus_options);
+
+ /* Set the bus number */
+ reg_write(ohci, OHCI1394_NodeID, 0x0000ffc0);
+
+ /* Enable posted writes */
+ reg_write(ohci, OHCI1394_HCControlSet,
+ OHCI1394_HCControl_postedWriteEnable);
+
+ /* Clear link control register */
+ reg_write(ohci, OHCI1394_LinkControlClear, 0xffffffff);
+
+ /* enable phys */
+ reg_write(ohci, OHCI1394_LinkControlSet,
+ OHCI1394_LinkControl_RcvPhyPkt);
+
+ /* Don't accept phy packets into AR request context */
+ reg_write(ohci, OHCI1394_LinkControlClear, 0x00000400);
+
+ /* Clear the Isochonouys interrupt masks */
+ reg_write(ohci, OHCI1394_IsoRecvIntMaskClear, 0xffffffff);
+ reg_write(ohci, OHCI1394_IsoRecvIntEventClear, 0xffffffff);
+ reg_write(ohci, OHCI1394_IsoXmitIntMaskClear, 0xffffffff);
+ reg_write(ohci, OHCI1394_IsoXmitIntEventClear, 0xffffffff);
+
+ /* Accept asyncronous transfer requests from all nodes for now */
+ reg_write(ohci,OHCI1394_AsReqFilterHiSet, 0x80000000);
+
+ /* Specify asyncronous transfer retries */
+ reg_write(ohci, OHCI1394_ATRetries,
+ OHCI1394_MAX_AT_REQ_RETRIES |
+ (OHCI1394_MAX_AT_RESP_RETRIES<<4) |
+ (OHCI1394_MAX_PHYS_RESP_RETRIES<<8));
+
+ /* We don't want hardware swapping */
+ reg_write(ohci, OHCI1394_HCControlClear, OHCI1394_HCControl_noByteSwap);
+
+ /* Enable link */
+ reg_write(ohci, OHCI1394_HCControlSet, OHCI1394_HCControl_linkEnable);
+
+ /* If anything is connected to a port, make sure it is enabled */
+ num_ports = get_phy_reg(ohci, 2) & 0xf;
+ for (i = 0; i < num_ports; i++) {
+ unsigned int status;
+
+ set_phy_reg(ohci, 7, i);
+ status = get_phy_reg(ohci, 8);
+
+ if (status & 0x20)
+ set_phy_reg(ohci, 8, status & ~1);
+ }
+}
+
+/**
+ * init_ohci1394_wait_for_busresets - wait until bus resets are completed
+ *
+ * OHCI1394 initialization itself and any device going on- or offline
+ * and any cable issue cause a IEEE1394 bus reset. The OHCI1394 spec
+ * specifies that physical DMA is disabled on each bus reset and it
+ * has to be enabled after each bus reset when needed. We resort
+ * to polling here because on early boot, we have no interrupts.
+ */
+static inline void __init init_ohci1394_wait_for_busresets(struct ti_ohci *ohci)
+{
+ int i, events;
+
+ for (i=0; i < 9; i++) {
+ mdelay(200);
+ events = reg_read(ohci, OHCI1394_IntEventSet);
+ if (events & OHCI1394_busReset)
+ reg_write(ohci, OHCI1394_IntEventClear,
+ OHCI1394_busReset);
+ }
+}
+
+/**
+ * init_ohci1394_enable_physical_dma - Enable physical DMA for remote debugging
+ * This enables remote DMA access over IEEE1394 from every host for the low
+ * 4GB of address space. DMA accesses above 4GB are not available currently.
+ */
+static inline void __init init_ohci1394_enable_physical_dma(struct ti_ohci *hci)
+{
+ reg_write(hci, OHCI1394_PhyReqFilterHiSet, 0xffffffff);
+ reg_write(hci, OHCI1394_PhyReqFilterLoSet, 0xffffffff);
+ reg_write(hci, OHCI1394_PhyUpperBound, 0xffff0000);
+}
+
+/**
+ * init_ohci1394_reset_and_init_dma - init controller and enable DMA
+ * This initializes the given controller and enables physical DMA engine in it.
+ */
+static inline void __init init_ohci1394_reset_and_init_dma(struct ti_ohci *ohci)
+{
+ /* Start off with a soft reset, clears everything to a sane state. */
+ init_ohci1394_soft_reset(ohci);
+
+ /* Accessing some registers without LPS enabled may cause lock up */
+ reg_write(ohci, OHCI1394_HCControlSet, OHCI1394_HCControl_LPS);
+
+ /* Disable and clear interrupts */
+ reg_write(ohci, OHCI1394_IntEventClear, 0xffffffff);
+ reg_write(ohci, OHCI1394_IntMaskClear, 0xffffffff);
+
+ mdelay(50); /* Wait 50msec to make sure we have full link enabled */
+
+ init_ohci1394_initialize(ohci);
+ /*
+ * The initialization causes at least one IEEE1394 bus reset. Enabling
+ * physical DMA only works *after* *all* bus resets have calmed down:
+ */
+ init_ohci1394_wait_for_busresets(ohci);
+
+ /* We had to wait and do this now if we want to debug early problems */
+ init_ohci1394_enable_physical_dma(ohci);
+}
+
+/**
+ * init_ohci1394_controller - Map the registers of the controller and init DMA
+ * This maps the registers of the specified controller and initializes it
+ */
+static inline void __init init_ohci1394_controller(int num, int slot, int func)
+{
+ unsigned long ohci_base;
+ struct ti_ohci ohci;
+
+ printk(KERN_INFO "init_ohci1394_dma: initializing OHCI-1394"
+ " at %02x:%02x.%x\n", num, slot, func);
+
+ ohci_base = read_pci_config(num, slot, func, PCI_BASE_ADDRESS_0+(0<<2))
+ & PCI_BASE_ADDRESS_MEM_MASK;
+
+ set_fixmap_nocache(FIX_OHCI1394_BASE, ohci_base);
+
+ ohci.registers = (void *)fix_to_virt(FIX_OHCI1394_BASE);
+
+ init_ohci1394_reset_and_init_dma(&ohci);
+}
+
+/**
+ * debug_init_ohci1394_dma - scan for OHCI1394 controllers and init DMA on them
+ * Scans the whole PCI space for OHCI1394 controllers and inits DMA on them
+ */
+void __init init_ohci1394_dma_on_all_controllers(void)
+{
+ int num, slot, func;
+
+ if (!early_pci_allowed())
+ return;
+
+ /* Poor man's PCI discovery, the only thing we can do at early boot */
+ for (num = 0; num < 32; num++) {
+ for (slot = 0; slot < 32; slot++) {
+ for (func = 0; func < 8; func++) {
+ u32 class = read_pci_config(num,slot,func,
+ PCI_CLASS_REVISION);
+ if ((class == 0xffffffff))
+ continue; /* No device at this func */
+
+ if (class>>8 != PCI_CLASS_SERIAL_FIREWIRE_OHCI)
+ continue; /* Not an OHCI-1394 device */
+
+ init_ohci1394_controller(num, slot, func);
+ break; /* Assume one controller per device */
+ }
+ }
+ }
+ printk(KERN_INFO "init_ohci1394_dma: finished initializing OHCI DMA\n");
+}
+
+/**
+ * setup_init_ohci1394_early - enables early OHCI1394 DMA initialization
+ */
+static int __init setup_ohci1394_dma(char *opt)
+{
+ if (!strcmp(opt, "early"))
+ init_ohci1394_dma_early = 1;
+ return 0;
+}
+
+/* passing ohci1394_dma=early on boot causes early OHCI1394 DMA initialization */
+early_param("ohci1394_dma", setup_ohci1394_dma);
diff --git a/drivers/input/mouse/pc110pad.c b/drivers/input/mouse/pc110pad.c
index 8991ab0b4fe..61cff8374e6 100644
--- a/drivers/input/mouse/pc110pad.c
+++ b/drivers/input/mouse/pc110pad.c
@@ -39,6 +39,7 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
+#include <linux/delay.h>
#include <asm/io.h>
#include <asm/irq.h>
@@ -62,8 +63,10 @@ static irqreturn_t pc110pad_interrupt(int irq, void *ptr)
int value = inb_p(pc110pad_io);
int handshake = inb_p(pc110pad_io + 2);
- outb_p(handshake | 1, pc110pad_io + 2);
- outb_p(handshake & ~1, pc110pad_io + 2);
+ outb(handshake | 1, pc110pad_io + 2);
+ udelay(2);
+ outb(handshake & ~1, pc110pad_io + 2);
+ udelay(2);
inb_p(0x64);
pc110pad_data[pc110pad_count++] = value;
diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index 4e04e49a2f1..ced4ac1955d 100644
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -290,7 +290,7 @@ static void svm_hardware_enable(void *garbage)
#ifdef CONFIG_X86_64
struct desc_ptr gdt_descr;
#else
- struct Xgt_desc_struct gdt_descr;
+ struct desc_ptr gdt_descr;
#endif
struct desc_struct *gdt;
int me = raw_smp_processor_id();
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index bb56ae3f89b..5b397b6c9f9 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -524,7 +524,7 @@ static unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu)
static void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)
{
if (vcpu->rmode.active)
- rflags |= IOPL_MASK | X86_EFLAGS_VM;
+ rflags |= X86_EFLAGS_IOPL | X86_EFLAGS_VM;
vmcs_writel(GUEST_RFLAGS, rflags);
}
@@ -1050,7 +1050,7 @@ static void enter_pmode(struct kvm_vcpu *vcpu)
vmcs_write32(GUEST_TR_AR_BYTES, vcpu->rmode.tr.ar);
flags = vmcs_readl(GUEST_RFLAGS);
- flags &= ~(IOPL_MASK | X86_EFLAGS_VM);
+ flags &= ~(X86_EFLAGS_IOPL | X86_EFLAGS_VM);
flags |= (vcpu->rmode.save_iopl << IOPL_SHIFT);
vmcs_writel(GUEST_RFLAGS, flags);
@@ -1107,9 +1107,9 @@ static void enter_rmode(struct kvm_vcpu *vcpu)
vmcs_write32(GUEST_TR_AR_BYTES, 0x008b);
flags = vmcs_readl(GUEST_RFLAGS);
- vcpu->rmode.save_iopl = (flags & IOPL_MASK) >> IOPL_SHIFT;
+ vcpu->rmode.save_iopl = (flags & X86_EFLAGS_IOPL) >> IOPL_SHIFT;
- flags |= IOPL_MASK | X86_EFLAGS_VM;
+ flags |= X86_EFLAGS_IOPL | X86_EFLAGS_VM;
vmcs_writel(GUEST_RFLAGS, flags);
vmcs_writel(GUEST_CR4, vmcs_readl(GUEST_CR4) | X86_CR4_VME);
diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c
index 96d0fd07c57..44adb00e149 100644
--- a/drivers/lguest/x86/core.c
+++ b/drivers/lguest/x86/core.c
@@ -94,7 +94,7 @@ static void copy_in_guest_info(struct lguest *lg, struct lguest_pages *pages)
/* Set up the two "TSS" members which tell the CPU what stack to use
* for traps which do directly into the Guest (ie. traps at privilege
* level 1). */
- pages->state.guest_tss.esp1 = lg->esp1;
+ pages->state.guest_tss.sp1 = lg->esp1;
pages->state.guest_tss.ss1 = lg->ss1;
/* Copy direct-to-Guest trap entries. */
@@ -416,7 +416,7 @@ void __init lguest_arch_host_init(void)
/* We know where we want the stack to be when the Guest enters
* the switcher: in pages->regs. The stack grows upwards, so
* we start it at the end of that structure. */
- state->guest_tss.esp0 = (long)(&pages->regs + 1);
+ state->guest_tss.sp0 = (long)(&pages->regs + 1);
/* And this is the GDT entry to use for the stack: we keep a
* couple of special LGUEST entries. */
state->guest_tss.ss0 = LGUEST_DS;
diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c
index 5dba68fe33f..a8364d81522 100644
--- a/drivers/pnp/pnpbios/bioscalls.c
+++ b/drivers/pnp/pnpbios/bioscalls.c
@@ -61,7 +61,7 @@ set_base(gdt[(selname) >> 3], (u32)(address)); \
set_limit(gdt[(selname) >> 3], size); \
} while(0)
-static struct desc_struct bad_bios_desc = { 0, 0x00409200 };
+static struct desc_struct bad_bios_desc;
/*
* At some point we want to use this stack frame pointer to unwind
@@ -477,6 +477,9 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header)
pnp_bios_callpoint.offset = header->fields.pm16offset;
pnp_bios_callpoint.segment = PNP_CS16;
+ bad_bios_desc.a = 0;
+ bad_bios_desc.b = 0x00409200;
+
set_base(bad_bios_desc, __va((unsigned long)0x40 << 4));
_set_limit((char *)&bad_bios_desc, 4095 - (0x40 << 4));
for (i = 0; i < NR_CPUS; i++) {
diff --git a/drivers/video/vermilion/vermilion.c b/drivers/video/vermilion/vermilion.c
index c31f549ebea..1c656667b93 100644
--- a/drivers/video/vermilion/vermilion.c
+++ b/drivers/video/vermilion/vermilion.c
@@ -88,9 +88,7 @@ static int vmlfb_alloc_vram_area(struct vram_area *va, unsigned max_order,
{
gfp_t flags;
unsigned long i;
- pgprot_t wc_pageprot;
- wc_pageprot = PAGE_KERNEL_NOCACHE;
max_order++;
do {
/*
@@ -126,14 +124,8 @@ static int vmlfb_alloc_vram_area(struct vram_area *va, unsigned max_order,
/*
* Change caching policy of the linear kernel map to avoid
* mapping type conflicts with user-space mappings.
- * The first global_flush_tlb() is really only there to do a global
- * wbinvd().
*/
-
- global_flush_tlb();
- change_page_attr(virt_to_page(va->logical), va->size >> PAGE_SHIFT,
- wc_pageprot);
- global_flush_tlb();
+ set_pages_uc(virt_to_page(va->logical), va->size >> PAGE_SHIFT);
printk(KERN_DEBUG MODULE_NAME
": Allocated %ld bytes vram area at 0x%08lx\n",
@@ -157,9 +149,8 @@ static void vmlfb_free_vram_area(struct vram_area *va)
* Reset the linear kernel map caching policy.
*/
- change_page_attr(virt_to_page(va->logical),
- va->size >> PAGE_SHIFT, PAGE_KERNEL);
- global_flush_tlb();
+ set_pages_wb(virt_to_page(va->logical),
+ va->size >> PAGE_SHIFT);
/*
* Decrease the usage count on the pages we've used
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 21:52:03 +0000