From: Tony Lindgren Date: Mon, 7 Aug 2006 15:09:05 +0000 (+0300) Subject: Manual merge to make things compile after updating to 2.6.18-rc4 X-Git-Tag: v2.6.18-omap1~119 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=1230366a669d16c7a292586adc7ab0725395f5b4;p=linux-2.6-omap-h63xx.git Manual merge to make things compile after updating to 2.6.18-rc4 Some things are probably broken right now with the generic irq code update. --- diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c index bcc19fbb32d..2e1bf830fe1 100644 --- a/arch/arm/kernel/irq.c +++ b/arch/arm/kernel/irq.c @@ -21,12 +21,12 @@ * IRQ's are in fact implemented a bit like signal handlers for the kernel. * Naturally it's not a 1:1 relation, but there are similarities. */ -#include #include #include #include #include #include +#include #include #include #include @@ -38,28 +38,9 @@ #include #include -#include #include -#include #include -/* - * Maximum IRQ count. Currently, this is arbitary. However, it should - * not be set too low to prevent false triggering. Conversely, if it - * is set too high, then you could miss a stuck IRQ. - * - * Maybe we ought to set a timer and re-enable the IRQ at a later time? - */ -#define MAX_IRQ_CNT 100000 - -static int noirqdebug; -static volatile unsigned long irq_err_count; -static DEFINE_SPINLOCK(irq_controller_lock); -static LIST_HEAD(irq_pending); - -struct irqdesc irq_desc[NR_IRQS]; -void (*init_arch_irq)(void) __initdata = NULL; - /* * No architecture-specific irq_finish function defined in arm/arch/irqs.h. */ @@ -67,163 +48,8 @@ void (*init_arch_irq)(void) __initdata = NULL; #define irq_finish(irq) do { } while (0) #endif -/* - * Dummy mask/unmask handler - */ -void dummy_mask_unmask_irq(unsigned int irq) -{ -} - -irqreturn_t no_action(int irq, void *dev_id, struct pt_regs *regs) -{ - return IRQ_NONE; -} - -void do_bad_IRQ(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs) -{ - irq_err_count += 1; - printk(KERN_ERR "IRQ: spurious interrupt %d\n", irq); -} - -static struct irqchip bad_chip = { - .ack = dummy_mask_unmask_irq, - .mask = dummy_mask_unmask_irq, - .unmask = dummy_mask_unmask_irq, -}; - -static struct irqdesc bad_irq_desc = { - .chip = &bad_chip, - .handle = do_bad_IRQ, - .pend = LIST_HEAD_INIT(bad_irq_desc.pend), - .disable_depth = 1, -}; - -#ifdef CONFIG_SMP -void synchronize_irq(unsigned int irq) -{ - struct irqdesc *desc = irq_desc + irq; - - while (desc->running) - barrier(); -} -EXPORT_SYMBOL(synchronize_irq); - -#define smp_set_running(desc) do { desc->running = 1; } while (0) -#define smp_clear_running(desc) do { desc->running = 0; } while (0) -#else -#define smp_set_running(desc) do { } while (0) -#define smp_clear_running(desc) do { } while (0) -#endif - -/** - * disable_irq_nosync - disable an irq without waiting - * @irq: Interrupt to disable - * - * Disable the selected interrupt line. Enables and disables - * are nested. We do this lazily. - * - * This function may be called from IRQ context. - */ -void disable_irq_nosync(unsigned int irq) -{ - struct irqdesc *desc = irq_desc + irq; - unsigned long flags; - - spin_lock_irqsave(&irq_controller_lock, flags); - desc->disable_depth++; - list_del_init(&desc->pend); - spin_unlock_irqrestore(&irq_controller_lock, flags); -} -EXPORT_SYMBOL(disable_irq_nosync); - -/** - * disable_irq - disable an irq and wait for completion - * @irq: Interrupt to disable - * - * Disable the selected interrupt line. Enables and disables - * are nested. This functions waits for any pending IRQ - * handlers for this interrupt to complete before returning. - * If you use this function while holding a resource the IRQ - * handler may need you will deadlock. - * - * This function may be called - with care - from IRQ context. - */ -void disable_irq(unsigned int irq) -{ - struct irqdesc *desc = irq_desc + irq; - - disable_irq_nosync(irq); - if (desc->action) - synchronize_irq(irq); -} -EXPORT_SYMBOL(disable_irq); - -/** - * enable_irq - enable interrupt handling on an irq - * @irq: Interrupt to enable - * - * Re-enables the processing of interrupts on this IRQ line. - * Note that this may call the interrupt handler, so you may - * get unexpected results if you hold IRQs disabled. - * - * This function may be called from IRQ context. - */ -void enable_irq(unsigned int irq) -{ - struct irqdesc *desc = irq_desc + irq; - unsigned long flags; - - spin_lock_irqsave(&irq_controller_lock, flags); - if (unlikely(!desc->disable_depth)) { - printk("enable_irq(%u) unbalanced from %p\n", irq, - __builtin_return_address(0)); - } else if (!--desc->disable_depth) { - desc->probing = 0; - desc->chip->unmask(irq); - - /* - * If the interrupt is waiting to be processed, - * try to re-run it. We can't directly run it - * from here since the caller might be in an - * interrupt-protected region. - */ - if (desc->pending && list_empty(&desc->pend)) { - desc->pending = 0; - if (!desc->chip->retrigger || - desc->chip->retrigger(irq)) - list_add(&desc->pend, &irq_pending); - } - } - spin_unlock_irqrestore(&irq_controller_lock, flags); -} -EXPORT_SYMBOL(enable_irq); - -/* - * Enable wake on selected irq - */ -void enable_irq_wake(unsigned int irq) -{ - struct irqdesc *desc = irq_desc + irq; - unsigned long flags; - - spin_lock_irqsave(&irq_controller_lock, flags); - if (desc->chip->set_wake) - desc->chip->set_wake(irq, 1); - spin_unlock_irqrestore(&irq_controller_lock, flags); -} -EXPORT_SYMBOL(enable_irq_wake); - -void disable_irq_wake(unsigned int irq) -{ - struct irqdesc *desc = irq_desc + irq; - unsigned long flags; - - spin_lock_irqsave(&irq_controller_lock, flags); - if (desc->chip->set_wake) - desc->chip->set_wake(irq, 0); - spin_unlock_irqrestore(&irq_controller_lock, flags); -} -EXPORT_SYMBOL(disable_irq_wake); +void (*init_arch_irq)(void) __initdata = NULL; +unsigned long irq_err_count; int show_interrupts(struct seq_file *p, void *v) { @@ -243,21 +69,22 @@ int show_interrupts(struct seq_file *p, void *v) } if (i < NR_IRQS) { - spin_lock_irqsave(&irq_controller_lock, flags); - action = irq_desc[i].action; + spin_lock_irqsave(&irq_desc[i].lock, flags); + action = irq_desc[i].action; if (!action) goto unlock; seq_printf(p, "%3d: ", i); for_each_present_cpu(cpu) seq_printf(p, "%10u ", kstat_cpu(cpu).irqs[i]); + seq_printf(p, " %10s", irq_desc[i].chip->name ? : "-"); seq_printf(p, " %s", action->name); for (action = action->next; action; action = action->next) seq_printf(p, ", %s", action->name); seq_putc(p, '\n'); unlock: - spin_unlock_irqrestore(&irq_controller_lock, flags); + spin_unlock_irqrestore(&irq_desc[i].lock, flags); } else if (i == NR_IRQS) { #ifdef CONFIG_ARCH_ACORN show_fiq_list(p, v); @@ -271,267 +98,11 @@ unlock: return 0; } -/* - * IRQ lock detection. - * - * Hopefully, this should get us out of a few locked situations. - * However, it may take a while for this to happen, since we need - * a large number if IRQs to appear in the same jiffie with the - * same instruction pointer (or within 2 instructions). - */ -static int check_irq_lock(struct irqdesc *desc, int irq, struct pt_regs *regs) -{ - unsigned long instr_ptr = instruction_pointer(regs); - - if (desc->lck_jif == jiffies && - desc->lck_pc >= instr_ptr && desc->lck_pc < instr_ptr + 8) { - desc->lck_cnt += 1; - - if (desc->lck_cnt > MAX_IRQ_CNT) { - printk(KERN_ERR "IRQ LOCK: IRQ%d is locking the system, disabled\n", irq); - return 1; - } - } else { - desc->lck_cnt = 0; - desc->lck_pc = instruction_pointer(regs); - desc->lck_jif = jiffies; - } - return 0; -} - -static void -report_bad_irq(unsigned int irq, struct pt_regs *regs, struct irqdesc *desc, int ret) -{ - static int count = 100; - struct irqaction *action; - - if (noirqdebug) - return; - - if (ret != IRQ_HANDLED && ret != IRQ_NONE) { - if (!count) - return; - count--; - printk("irq%u: bogus retval mask %x\n", irq, ret); - } else { - desc->irqs_unhandled++; - if (desc->irqs_unhandled <= 99900) - return; - desc->irqs_unhandled = 0; - printk("irq%u: nobody cared\n", irq); - } - show_regs(regs); - dump_stack(); - printk(KERN_ERR "handlers:"); - action = desc->action; - do { - printk("\n" KERN_ERR "[<%p>]", action->handler); - print_symbol(" (%s)", (unsigned long)action->handler); - action = action->next; - } while (action); - printk("\n"); -} - -static int -__do_irq(unsigned int irq, struct irqaction *action, struct pt_regs *regs) -{ - unsigned int status; - int ret, retval = 0; - - spin_unlock(&irq_controller_lock); - -#ifdef CONFIG_NO_IDLE_HZ - if (!(action->flags & SA_TIMER) && system_timer->dyn_tick != NULL) { - spin_lock(&system_timer->dyn_tick->lock); - if (system_timer->dyn_tick->state & DYN_TICK_ENABLED) - system_timer->dyn_tick->handler(irq, 0, regs); - spin_unlock(&system_timer->dyn_tick->lock); - } -#endif - - if (!(action->flags & SA_INTERRUPT)) - local_irq_enable(); - - status = 0; - do { - ret = action->handler(irq, action->dev_id, regs); - if (ret == IRQ_HANDLED) - status |= action->flags; - retval |= ret; - action = action->next; - } while (action); - - if (status & SA_SAMPLE_RANDOM) - add_interrupt_randomness(irq); - - spin_lock_irq(&irq_controller_lock); - - return retval; -} - -/* - * This is for software-decoded IRQs. The caller is expected to - * handle the ack, clear, mask and unmask issues. - */ -void -do_simple_IRQ(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs) -{ - struct irqaction *action; - const unsigned int cpu = smp_processor_id(); - - desc->triggered = 1; - - kstat_cpu(cpu).irqs[irq]++; - - smp_set_running(desc); - - action = desc->action; - if (action) { - int ret = __do_irq(irq, action, regs); - if (ret != IRQ_HANDLED) - report_bad_irq(irq, regs, desc, ret); - } - - smp_clear_running(desc); -} - -/* - * Most edge-triggered IRQ implementations seem to take a broken - * approach to this. Hence the complexity. - */ -void -do_edge_IRQ(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs) -{ - const unsigned int cpu = smp_processor_id(); - - desc->triggered = 1; - - /* - * If we're currently running this IRQ, or its disabled, - * we shouldn't process the IRQ. Instead, turn on the - * hardware masks. - */ - if (unlikely(desc->running || desc->disable_depth)) - goto running; - - /* - * Acknowledge and clear the IRQ, but don't mask it. - */ - desc->chip->ack(irq); - - /* - * Mark the IRQ currently in progress. - */ - desc->running = 1; - - kstat_cpu(cpu).irqs[irq]++; - - do { - struct irqaction *action; - - action = desc->action; - if (!action) - break; - - if (desc->pending && !desc->disable_depth) { - desc->pending = 0; - desc->chip->unmask(irq); - } - - __do_irq(irq, action, regs); - } while (desc->pending && !desc->disable_depth); - - desc->running = 0; - - /* - * If we were disabled or freed, shut down the handler. - */ - if (likely(desc->action && !check_irq_lock(desc, irq, regs))) - return; - - running: - /* - * We got another IRQ while this one was masked or - * currently running. Delay it. - */ - desc->pending = 1; - desc->chip->mask(irq); - desc->chip->ack(irq); -} - -/* - * Level-based IRQ handler. Nice and simple. - */ -void -do_level_IRQ(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs) -{ - struct irqaction *action; - const unsigned int cpu = smp_processor_id(); - - desc->triggered = 1; - - /* - * Acknowledge, clear _AND_ disable the interrupt. - */ - desc->chip->ack(irq); - - if (likely(!desc->disable_depth)) { - kstat_cpu(cpu).irqs[irq]++; - - smp_set_running(desc); - - /* - * Return with this interrupt masked if no action - */ - action = desc->action; - if (action) { - int ret = __do_irq(irq, desc->action, regs); - - if (ret != IRQ_HANDLED) - report_bad_irq(irq, regs, desc, ret); - - if (likely(!desc->disable_depth && - !check_irq_lock(desc, irq, regs))) - desc->chip->unmask(irq); - } - - smp_clear_running(desc); - } -} - -static void do_pending_irqs(struct pt_regs *regs) -{ - struct list_head head, *l, *n; - - do { - struct irqdesc *desc; - - /* - * First, take the pending interrupts off the list. - * The act of calling the handlers may add some IRQs - * back onto the list. - */ - head = irq_pending; - INIT_LIST_HEAD(&irq_pending); - head.next->prev = &head; - head.prev->next = &head; - - /* - * Now run each entry. We must delete it from our - * list before calling the handler. - */ - list_for_each_safe(l, n, &head) { - desc = list_entry(l, struct irqdesc, pend); - list_del_init(&desc->pend); - desc_handle_irq(desc - irq_desc, desc, regs); - } - - /* - * The list must be empty. - */ - BUG_ON(!list_empty(&head)); - } while (!list_empty(&irq_pending)); -} +/* Handle bad interrupts */ +static struct irq_desc bad_irq_desc = { + .handle_irq = handle_bad_irq, + .lock = SPIN_LOCK_UNLOCKED +}; /* * do_IRQ handles all hardware IRQ's. Decoded IRQs should not @@ -550,96 +121,15 @@ asmlinkage void asm_do_IRQ(unsigned int irq, struct pt_regs *regs) desc = &bad_irq_desc; irq_enter(); - spin_lock(&irq_controller_lock); - desc_handle_irq(irq, desc, regs); - /* - * Now re-run any pending interrupts. - */ - if (!list_empty(&irq_pending)) - do_pending_irqs(regs); + desc_handle_irq(irq, desc, regs); + /* AT91 specific workaround */ irq_finish(irq); - spin_unlock(&irq_controller_lock); irq_exit(); } -void __set_irq_handler(unsigned int irq, irq_handler_t handle, int is_chained) -{ - struct irqdesc *desc; - unsigned long flags; - - if (irq >= NR_IRQS) { - printk(KERN_ERR "Trying to install handler for IRQ%d\n", irq); - return; - } - - if (handle == NULL) - handle = do_bad_IRQ; - - desc = irq_desc + irq; - - if (is_chained && desc->chip == &bad_chip) - printk(KERN_WARNING "Trying to install chained handler for IRQ%d\n", irq); - - spin_lock_irqsave(&irq_controller_lock, flags); - if (handle == do_bad_IRQ) { - desc->chip->mask(irq); - desc->chip->ack(irq); - desc->disable_depth = 1; - } - desc->handle = handle; - if (handle != do_bad_IRQ && is_chained) { - desc->valid = 0; - desc->probe_ok = 0; - desc->disable_depth = 0; - desc->chip->unmask(irq); - } - spin_unlock_irqrestore(&irq_controller_lock, flags); -} - -void set_irq_chip(unsigned int irq, struct irqchip *chip) -{ - struct irqdesc *desc; - unsigned long flags; - - if (irq >= NR_IRQS) { - printk(KERN_ERR "Trying to install chip for IRQ%d\n", irq); - return; - } - - if (chip == NULL) - chip = &bad_chip; - - desc = irq_desc + irq; - spin_lock_irqsave(&irq_controller_lock, flags); - desc->chip = chip; - spin_unlock_irqrestore(&irq_controller_lock, flags); -} - -int set_irq_type(unsigned int irq, unsigned int type) -{ - struct irqdesc *desc; - unsigned long flags; - int ret = -ENXIO; - - if (irq >= NR_IRQS) { - printk(KERN_ERR "Trying to set irq type for IRQ%d\n", irq); - return -ENODEV; - } - - desc = irq_desc + irq; - if (desc->chip->set_type) { - spin_lock_irqsave(&irq_controller_lock, flags); - ret = desc->chip->set_type(irq, type); - spin_unlock_irqrestore(&irq_controller_lock, flags); - } - - return ret; -} -EXPORT_SYMBOL(set_irq_type); - void set_irq_flags(unsigned int irq, unsigned int iflags) { struct irqdesc *desc; @@ -651,422 +141,43 @@ void set_irq_flags(unsigned int irq, unsigned int iflags) } desc = irq_desc + irq; - spin_lock_irqsave(&irq_controller_lock, flags); - desc->valid = (iflags & IRQF_VALID) != 0; - desc->probe_ok = (iflags & IRQF_PROBE) != 0; - desc->noautoenable = (iflags & IRQF_NOAUTOEN) != 0; - spin_unlock_irqrestore(&irq_controller_lock, flags); -} - -int setup_irq(unsigned int irq, struct irqaction *new) -{ - int shared = 0; - struct irqaction *old, **p; - unsigned long flags; - struct irqdesc *desc; - - /* - * Some drivers like serial.c use request_irq() heavily, - * so we have to be careful not to interfere with a - * running system. - */ - if (new->flags & SA_SAMPLE_RANDOM) { - /* - * This function might sleep, we want to call it first, - * outside of the atomic block. - * Yes, this might clear the entropy pool if the wrong - * driver is attempted to be loaded, without actually - * installing a new handler, but is this really a problem, - * only the sysadmin is able to do this. - */ - rand_initialize_irq(irq); - } - - /* - * The following block of code has to be executed atomically - */ - desc = irq_desc + irq; - spin_lock_irqsave(&irq_controller_lock, flags); - p = &desc->action; - if ((old = *p) != NULL) { - /* - * Can't share interrupts unless both agree to and are - * the same type. - */ - if (!(old->flags & new->flags & SA_SHIRQ) || - (~old->flags & new->flags) & SA_TRIGGER_MASK) { - spin_unlock_irqrestore(&irq_controller_lock, flags); - return -EBUSY; - } - - /* add new interrupt at end of irq queue */ - do { - p = &old->next; - old = *p; - } while (old); - shared = 1; - } - - *p = new; - - if (!shared) { - desc->probing = 0; - desc->running = 0; - desc->pending = 0; - desc->disable_depth = 1; - - if (new->flags & SA_TRIGGER_MASK && - desc->chip->set_type) { - unsigned int type = new->flags & SA_TRIGGER_MASK; - desc->chip->set_type(irq, type); - } - - if (!desc->noautoenable) { - desc->disable_depth = 0; - desc->chip->unmask(irq); - } - } - - spin_unlock_irqrestore(&irq_controller_lock, flags); - return 0; -} - -/** - * request_irq - allocate an interrupt line - * @irq: Interrupt line to allocate - * @handler: Function to be called when the IRQ occurs - * @irqflags: Interrupt type flags - * @devname: An ascii name for the claiming device - * @dev_id: A cookie passed back to the handler function - * - * This call allocates interrupt resources and enables the - * interrupt line and IRQ handling. From the point this - * call is made your handler function may be invoked. Since - * your handler function must clear any interrupt the board - * raises, you must take care both to initialise your hardware - * and to set up the interrupt handler in the right order. - * - * Dev_id must be globally unique. Normally the address of the - * device data structure is used as the cookie. Since the handler - * receives this value it makes sense to use it. - * - * If your interrupt is shared you must pass a non NULL dev_id - * as this is required when freeing the interrupt. - * - * Flags: - * - * SA_SHIRQ Interrupt is shared - * - * SA_INTERRUPT Disable local interrupts while processing - * - * SA_SAMPLE_RANDOM The interrupt can be used for entropy - * - */ -int request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long irq_flags, const char * devname, void *dev_id) -{ - unsigned long retval; - struct irqaction *action; - - if (irq >= NR_IRQS || !irq_desc[irq].valid || !handler || - (irq_flags & SA_SHIRQ && !dev_id)) - return -EINVAL; - - action = (struct irqaction *)kmalloc(sizeof(struct irqaction), GFP_KERNEL); - if (!action) - return -ENOMEM; - - action->handler = handler; - action->flags = irq_flags; - cpus_clear(action->mask); - action->name = devname; - action->next = NULL; - action->dev_id = dev_id; - - retval = setup_irq(irq, action); - - if (retval) - kfree(action); - return retval; -} - -EXPORT_SYMBOL(request_irq); - -/** - * free_irq - free an interrupt - * @irq: Interrupt line to free - * @dev_id: Device identity to free - * - * Remove an interrupt handler. The handler is removed and if the - * interrupt line is no longer in use by any driver it is disabled. - * On a shared IRQ the caller must ensure the interrupt is disabled - * on the card it drives before calling this function. - * - * This function must not be called from interrupt context. - */ -void free_irq(unsigned int irq, void *dev_id) -{ - struct irqaction * action, **p; - unsigned long flags; - - if (irq >= NR_IRQS || !irq_desc[irq].valid) { - printk(KERN_ERR "Trying to free IRQ%d\n",irq); - dump_stack(); - return; - } - - spin_lock_irqsave(&irq_controller_lock, flags); - for (p = &irq_desc[irq].action; (action = *p) != NULL; p = &action->next) { - if (action->dev_id != dev_id) - continue; - - /* Found it - now free it */ - *p = action->next; - break; - } - spin_unlock_irqrestore(&irq_controller_lock, flags); - - if (!action) { - printk(KERN_ERR "Trying to free free IRQ%d\n",irq); - dump_stack(); - } else { - synchronize_irq(irq); - kfree(action); - } -} - -EXPORT_SYMBOL(free_irq); - -static DECLARE_MUTEX(probe_sem); - -/* Start the interrupt probing. Unlike other architectures, - * we don't return a mask of interrupts from probe_irq_on, - * but return the number of interrupts enabled for the probe. - * The interrupts which have been enabled for probing is - * instead recorded in the irq_desc structure. - */ -unsigned long probe_irq_on(void) -{ - unsigned int i, irqs = 0; - unsigned long delay; - - down(&probe_sem); - - /* - * first snaffle up any unassigned but - * probe-able interrupts - */ - spin_lock_irq(&irq_controller_lock); - for (i = 0; i < NR_IRQS; i++) { - if (!irq_desc[i].probe_ok || irq_desc[i].action) - continue; - - irq_desc[i].probing = 1; - irq_desc[i].triggered = 0; - if (irq_desc[i].chip->set_type) - irq_desc[i].chip->set_type(i, IRQT_PROBE); - irq_desc[i].chip->unmask(i); - irqs += 1; - } - spin_unlock_irq(&irq_controller_lock); - - /* - * wait for spurious interrupts to mask themselves out again - */ - for (delay = jiffies + HZ/10; time_before(jiffies, delay); ) - /* min 100ms delay */; - - /* - * now filter out any obviously spurious interrupts - */ - spin_lock_irq(&irq_controller_lock); - for (i = 0; i < NR_IRQS; i++) { - if (irq_desc[i].probing && irq_desc[i].triggered) { - irq_desc[i].probing = 0; - irqs -= 1; - } - } - spin_unlock_irq(&irq_controller_lock); - - return irqs; -} - -EXPORT_SYMBOL(probe_irq_on); - -unsigned int probe_irq_mask(unsigned long irqs) -{ - unsigned int mask = 0, i; - - spin_lock_irq(&irq_controller_lock); - for (i = 0; i < 16 && i < NR_IRQS; i++) - if (irq_desc[i].probing && irq_desc[i].triggered) - mask |= 1 << i; - spin_unlock_irq(&irq_controller_lock); - - up(&probe_sem); - - return mask; -} -EXPORT_SYMBOL(probe_irq_mask); - -/* - * Possible return values: - * >= 0 - interrupt number - * -1 - no interrupt/many interrupts - */ -int probe_irq_off(unsigned long irqs) -{ - unsigned int i; - int irq_found = NO_IRQ; - - /* - * look at the interrupts, and find exactly one - * that we were probing has been triggered - */ - spin_lock_irq(&irq_controller_lock); - for (i = 0; i < NR_IRQS; i++) { - if (irq_desc[i].probing && - irq_desc[i].triggered) { - if (irq_found != NO_IRQ) { - irq_found = NO_IRQ; - goto out; - } - irq_found = i; - } - } - - if (irq_found == -1) - irq_found = NO_IRQ; -out: - spin_unlock_irq(&irq_controller_lock); - - up(&probe_sem); - - return irq_found; -} - -EXPORT_SYMBOL(probe_irq_off); - -#ifdef CONFIG_SMP -static void route_irq(struct irqdesc *desc, unsigned int irq, unsigned int cpu) -{ - pr_debug("IRQ%u: moving from cpu%u to cpu%u\n", irq, desc->cpu, cpu); - - spin_lock_irq(&irq_controller_lock); - desc->cpu = cpu; - desc->chip->set_cpu(desc, irq, cpu); - spin_unlock_irq(&irq_controller_lock); -} - -#ifdef CONFIG_PROC_FS -static int -irq_affinity_read_proc(char *page, char **start, off_t off, int count, - int *eof, void *data) -{ - struct irqdesc *desc = irq_desc + ((int)data); - int len = cpumask_scnprintf(page, count, desc->affinity); - - if (count - len < 2) - return -EINVAL; - page[len++] = '\n'; - page[len] = '\0'; - - return len; -} - -static int -irq_affinity_write_proc(struct file *file, const char __user *buffer, - unsigned long count, void *data) -{ - unsigned int irq = (unsigned int)data; - struct irqdesc *desc = irq_desc + irq; - cpumask_t affinity, tmp; - int ret = -EIO; - - if (!desc->chip->set_cpu) - goto out; - - ret = cpumask_parse(buffer, count, affinity); - if (ret) - goto out; - - cpus_and(tmp, affinity, cpu_online_map); - if (cpus_empty(tmp)) { - ret = -EINVAL; - goto out; - } - - desc->affinity = affinity; - route_irq(desc, irq, first_cpu(tmp)); - ret = count; - - out: - return ret; -} -#endif -#endif - -void __init init_irq_proc(void) -{ -#if defined(CONFIG_SMP) && defined(CONFIG_PROC_FS) - struct proc_dir_entry *dir; - int irq; - - dir = proc_mkdir("irq", NULL); - if (!dir) - return; - - for (irq = 0; irq < NR_IRQS; irq++) { - struct proc_dir_entry *entry; - struct irqdesc *desc; - char name[16]; - - desc = irq_desc + irq; - memset(name, 0, sizeof(name)); - snprintf(name, sizeof(name) - 1, "%u", irq); - - desc->procdir = proc_mkdir(name, dir); - if (!desc->procdir) - continue; - - entry = create_proc_entry("smp_affinity", 0600, desc->procdir); - if (entry) { - entry->nlink = 1; - entry->data = (void *)irq; - entry->read_proc = irq_affinity_read_proc; - entry->write_proc = irq_affinity_write_proc; - } - } -#endif + spin_lock_irqsave(&desc->lock, flags); + desc->status |= IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN; + if (iflags & IRQF_VALID) + desc->status &= ~IRQ_NOREQUEST; + if (iflags & IRQF_PROBE) + desc->status &= ~IRQ_NOPROBE; + if (!(iflags & IRQF_NOAUTOEN)) + desc->status &= ~IRQ_NOAUTOEN; + spin_unlock_irqrestore(&desc->lock, flags); } void __init init_IRQ(void) { - struct irqdesc *desc; int irq; + for (irq = 0; irq < NR_IRQS; irq++) + irq_desc[irq].status |= IRQ_NOREQUEST | IRQ_DELAYED_DISABLE | + IRQ_NOPROBE; + #ifdef CONFIG_SMP bad_irq_desc.affinity = CPU_MASK_ALL; bad_irq_desc.cpu = smp_processor_id(); #endif - - for (irq = 0, desc = irq_desc; irq < NR_IRQS; irq++, desc++) { - *desc = bad_irq_desc; - INIT_LIST_HEAD(&desc->pend); - } - init_arch_irq(); } -static int __init noirqdebug_setup(char *str) +#ifdef CONFIG_HOTPLUG_CPU + +static void route_irq(struct irqdesc *desc, unsigned int irq, unsigned int cpu) { - noirqdebug = 1; - return 1; -} + pr_debug("IRQ%u: moving from cpu%u to cpu%u\n", irq, desc->cpu, cpu); -__setup("noirqdebug", noirqdebug_setup); + spin_lock_irq(&desc->lock); + desc->chip->set_affinity(irq, cpumask_of_cpu(cpu)); + spin_unlock_irq(&desc->lock); +} -#ifdef CONFIG_HOTPLUG_CPU /* * The CPU has been marked offline. Migrate IRQs off this CPU. If * the affinity settings do not allow other CPUs, force them onto any diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c index b742261c97a..42190aef10f 100644 --- a/arch/arm/mach-omap1/board-osk.c +++ b/arch/arm/mach-omap1/board-osk.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include diff --git a/arch/arm/mach-omap2/timer-gp.c b/arch/arm/mach-omap2/timer-gp.c index cf78e6c5a27..fe5fd6d42de 100644 --- a/arch/arm/mach-omap2/timer-gp.c +++ b/arch/arm/mach-omap2/timer-gp.c @@ -52,7 +52,7 @@ static irqreturn_t omap2_gp_timer_interrupt(int irq, void *dev_id, static struct irqaction omap2_gp_timer_irq = { .name = "gp timer", - .flags = SA_INTERRUPT | SA_TIMER, + .flags = IRQF_DISABLED | IRQF_TIMER, .handler = omap2_gp_timer_interrupt, }; diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c index 79a82f89c06..43931d927bb 100644 --- a/arch/arm/plat-omap/clock.c +++ b/arch/arm/plat-omap/clock.c @@ -28,9 +28,9 @@ #include -LIST_HEAD(clocks); -DEFINE_SPINLOCK(clockfw_lock); +static LIST_HEAD(clocks); static DEFINE_MUTEX(clocks_mutex); +static DEFINE_SPINLOCK(clockfw_lock); static struct clk_functions *arch_clock; diff --git a/arch/arm/plat-omap/dsp/dsp_core.c b/arch/arm/plat-omap/dsp/dsp_core.c index 65ce6642218..2e1cdca0e63 100644 --- a/arch/arm/plat-omap/dsp/dsp_core.c +++ b/arch/arm/plat-omap/dsp/dsp_core.c @@ -28,7 +28,6 @@ #include #include #include -#include #include #include #include diff --git a/arch/arm/plat-omap/dsp/uaccess_dsp.S b/arch/arm/plat-omap/dsp/uaccess_dsp.S index 3257b705064..6e427a2b2d4 100644 --- a/arch/arm/plat-omap/dsp/uaccess_dsp.S +++ b/arch/arm/plat-omap/dsp/uaccess_dsp.S @@ -29,52 +29,52 @@ .text -/* Prototype: int __arch_copy_to_user_dsp_2b(void *to, const char *from) +/* Prototype: int __copy_to_user_dsp_2b(void *to, const char *from) * Purpose : copy 2 bytes to user memory from kernel(DSP) memory - * escaping from unexpected byte swap using __arch_copy_to_user() + * escaping from unexpected byte swap using __copy_to_user() * in OMAP architecture. * Params : to - user memory * : from - kernel(DSP) memory * Returns : success = 0, failure = 2 */ -ENTRY(__arch_copy_to_user_dsp_2b) +ENTRY(__copy_to_user_dsp_2b) stmfd sp!, {r4, lr} ldrb r3, [r1], #1 ldrb r4, [r1], #1 USER( strbt r4, [r0], #1) @ May fault USER( strbt r3, [r0], #1) @ May fault mov r0, #0 - LOADREGS(fd,sp!,{r4, pc}) + ldmfd sp!, {r4, pc} .section .fixup,"ax" .align 0 9001: mov r0, #2 - LOADREGS(fd,sp!, {r4, pc}) + ldmfd sp!, {r4, pc} .previous -/* Prototype: unsigned long __arch_copy_from_user_dsp_2b(void *to, const void *from); +/* Prototype: unsigned long __copy_from_user_dsp_2b(void *to, const void *from); * Purpose : copy 2 bytes from user memory to kernel(DSP) memory - * escaping from unexpected byte swap using __arch_copy_to_user() + * escaping from unexpected byte swap using __copy_to_user() * in OMAP architecture. * Params : to - kernel (DSP) memory * : from - user memory * Returns : success = 0, failure = 2 */ -ENTRY(__arch_copy_from_user_dsp_2b) +ENTRY(__copy_from_user_dsp_2b) stmfd sp!, {r4, lr} USER( ldrbt r3, [r1], #1) @ May fault USER( ldrbt r4, [r1], #1) @ May fault strb r4, [r0], #1 strb r3, [r0], #1 mov r0, #0 - LOADREGS(fd,sp!,{r4, pc}) + ldmfd sp!, {r4, pc} .section .fixup,"ax" .align 0 9001: mov r3, #0 strh r3, [r0], #2 mov r0, #2 - LOADREGS(fd,sp!, {r4, pc}) + ldmfd sp!, {r4, pc} .previous diff --git a/arch/arm/plat-omap/dsp/uaccess_dsp.h b/arch/arm/plat-omap/dsp/uaccess_dsp.h index 2217a1042e5..d1eb7e52e27 100644 --- a/arch/arm/plat-omap/dsp/uaccess_dsp.h +++ b/arch/arm/plat-omap/dsp/uaccess_dsp.h @@ -33,9 +33,9 @@ #define HAVE_ASM_COPY_FROM_USER_DSP_2B #ifdef HAVE_ASM_COPY_FROM_USER_DSP_2B -extern unsigned long __arch_copy_from_user_dsp_2b(void *to, +extern unsigned long __copy_from_user_dsp_2b(void *to, const void __user *from); -extern unsigned long __arch_copy_to_user_dsp_2b(void __user *to, +extern unsigned long __copy_to_user_dsp_2b(void __user *to, const void *from); #endif @@ -51,7 +51,7 @@ static __inline__ unsigned long copy_from_user_dsp_2b(void *to, { unsigned short tmp; - if (__arch_copy_from_user(&tmp, from, 2)) + if (__copy_from_user(&tmp, from, 2)) return 2; /* expecting compiler to generate "strh" instruction */ *((unsigned short *)to) = tmp; @@ -77,7 +77,7 @@ static __inline__ unsigned long copy_from_user_dsp(void *to, const void *from, /* dest not aligned -- copy 2 bytes */ if (((unsigned long)to & 2) && (n >= 2)) { #ifdef HAVE_ASM_COPY_FROM_USER_DSP_2B - if (__arch_copy_from_user_dsp_2b(to, from)) + if (__copy_from_user_dsp_2b(to, from)) #else if (copy_from_user_dsp_2b(to, from)) #endif @@ -89,14 +89,14 @@ static __inline__ unsigned long copy_from_user_dsp(void *to, const void *from, /* middle 4*n bytes */ last_n = n & 2; n4 = n - last_n; - if ((n = __arch_copy_from_user(to, from, n4)) != 0) + if ((n = __copy_from_user(to, from, n4)) != 0) return n + last_n; /* last 2 bytes */ if (last_n) { to += n4; from += n4; #ifdef HAVE_ASM_COPY_FROM_USER_DSP_2B - if (__arch_copy_from_user_dsp_2b(to, from)) + if (__copy_from_user_dsp_2b(to, from)) #else if (copy_from_user_dsp_2b(to, from)) #endif @@ -108,7 +108,7 @@ static __inline__ unsigned long copy_from_user_dsp(void *to, const void *from, * DARAM/SARAM with 4-byte alignment or * external memory */ - n = __arch_copy_from_user(to, from, n); + n = __copy_from_user(to, from, n); } } else /* security hole - plug it */ @@ -122,7 +122,7 @@ static __inline__ unsigned long copy_to_user_dsp_2b(void *to, const void *from) /* expecting compiler to generate "strh" instruction */ unsigned short tmp = *(unsigned short *)from; - return __arch_copy_to_user(to, &tmp, 2); + return __copy_to_user(to, &tmp, 2); } #endif @@ -144,7 +144,7 @@ static __inline__ unsigned long copy_to_user_dsp(void *to, const void *from, /* dest not aligned -- copy 2 bytes */ if (((unsigned long)to & 2) && (n >= 2)) { #ifdef HAVE_ASM_COPY_FROM_USER_DSP_2B - if (__arch_copy_to_user_dsp_2b(to, from)) + if (__copy_to_user_dsp_2b(to, from)) #else if (copy_to_user_dsp_2b(to, from)) #endif @@ -156,14 +156,14 @@ static __inline__ unsigned long copy_to_user_dsp(void *to, const void *from, /* middle 4*n bytes */ last_n = n & 2; n4 = n - last_n; - if ((n = __arch_copy_to_user(to, from, n4)) != 0) + if ((n = __copy_to_user(to, from, n4)) != 0) return n + last_n; /* last 2 bytes */ if (last_n) { to += n4; from += n4; #ifdef HAVE_ASM_COPY_FROM_USER_DSP_2B - if (__arch_copy_to_user_dsp_2b(to, from)) + if (__copy_to_user_dsp_2b(to, from)) #else if (copy_to_user_dsp_2b(to, from)) #endif @@ -175,7 +175,7 @@ static __inline__ unsigned long copy_to_user_dsp(void *to, const void *from, * DARAM/SARAM with 4-byte alignment or * external memory */ - n = __arch_copy_to_user(to, from, n); + n = __copy_to_user(to, from, n); } } return n; diff --git a/arch/arm/plat-omap/fb.c b/arch/arm/plat-omap/fb.c index adcc172ef71..220ede7f94c 100644 --- a/arch/arm/plat-omap/fb.c +++ b/arch/arm/plat-omap/fb.c @@ -21,7 +21,6 @@ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#include #include #include #include diff --git a/arch/arm/plat-omap/gpio-switch.c b/arch/arm/plat-omap/gpio-switch.c index f2bda2b18ba..fd1b5fa2c55 100644 --- a/arch/arm/plat-omap/gpio-switch.c +++ b/arch/arm/plat-omap/gpio-switch.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c index e75a2ca70ba..cd7f973fb28 100644 --- a/arch/arm/plat-omap/gpio.c +++ b/arch/arm/plat-omap/gpio.c @@ -11,7 +11,6 @@ * published by the Free Software Foundation. */ -#include #include #include #include @@ -784,7 +783,7 @@ static void gpio_irq_handler(unsigned int irq, struct irqdesc *desc, desc->chip->ack(irq); - bank = (struct gpio_bank *) desc->data; + bank = get_irq_data(irq); if (bank->method == METHOD_MPUIO) isr_reg = bank->base + OMAP_MPUIO_GPIO_INT; #ifdef CONFIG_ARCH_OMAP15XX @@ -851,7 +850,8 @@ static void gpio_irq_handler(unsigned int irq, struct irqdesc *desc, /* Don't run the handler if it's already running * or was disabled lazely. */ - if (unlikely((d->disable_depth || d->running))) { + if (unlikely((d->depth || + (d->status & IRQ_INPROGRESS)))) { irq_mask = 1 << (gpio_irq - bank->virtual_irq_start); /* The unmasking will be done by @@ -860,22 +860,22 @@ static void gpio_irq_handler(unsigned int irq, struct irqdesc *desc, * it's already running. */ _enable_gpio_irqbank(bank, irq_mask, 0); - if (!d->disable_depth) { + if (!d->depth) { /* Level triggered interrupts * won't ever be reentered */ BUG_ON(level_mask & irq_mask); - d->pending = 1; + d->status |= IRQ_PENDING; } continue; } - d->running = 1; + desc_handle_irq(gpio_irq, d, regs); - d->running = 0; - if (unlikely(d->pending && !d->disable_depth)) { + + if (unlikely((d->status & IRQ_PENDING) && !d->depth)) { irq_mask = 1 << (gpio_irq - bank->virtual_irq_start); - d->pending = 0; + d->status &= ~IRQ_PENDING; _enable_gpio_irqbank(bank, irq_mask, 1); retrigger |= irq_mask; } @@ -944,7 +944,8 @@ static void mpuio_unmask_irq(unsigned int irq) _set_gpio_irqenable(bank, gpio, 1); } -static struct irqchip gpio_irq_chip = { +static struct irq_chip gpio_irq_chip = { + .name = "GPIO", .ack = gpio_ack_irq, .mask = gpio_mask_irq, .unmask = gpio_unmask_irq, @@ -952,10 +953,11 @@ static struct irqchip gpio_irq_chip = { .set_wake = gpio_wake_enable, }; -static struct irqchip mpuio_irq_chip = { +static struct irq_chip mpuio_irq_chip = { + .name = "MPUIO", .ack = mpuio_ack_irq, .mask = mpuio_mask_irq, - .unmask = mpuio_unmask_irq + .unmask = mpuio_unmask_irq }; static int initialized; diff --git a/arch/arm/plat-omap/timer32k.c b/arch/arm/plat-omap/timer32k.c index eba59462ee2..dc30d5b78ab 100644 --- a/arch/arm/plat-omap/timer32k.c +++ b/arch/arm/plat-omap/timer32k.c @@ -34,7 +34,6 @@ * 675 Mass Ave, Cambridge, MA 02139, USA. */ -#include #include #include #include @@ -268,7 +267,7 @@ static struct dyn_tick_timer omap_dyn_tick_timer = { static struct irqaction omap_32k_timer_irq = { .name = "32KHz timer", - .flags = SA_INTERRUPT | SA_TIMER, + .flags = IRQF_DISABLED | IRQF_TIMER, .handler = omap_32k_timer_interrupt, }; diff --git a/drivers/Kconfig b/drivers/Kconfig index 146d015ec53..522b1e047ce 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -72,6 +72,8 @@ source "drivers/edac/Kconfig" source "drivers/rtc/Kconfig" +source "drivers/dma/Kconfig" + source "drivers/ssi/Kconfig" endmenu diff --git a/drivers/bluetooth/brf6150.c b/drivers/bluetooth/brf6150.c index 3e0faa1262b..7c09788f182 100644 --- a/drivers/bluetooth/brf6150.c +++ b/drivers/bluetooth/brf6150.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/cbus/retu.c b/drivers/cbus/retu.c index 87ab216c4ae..45ecd350bc8 100644 --- a/drivers/cbus/retu.c +++ b/drivers/cbus/retu.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include diff --git a/drivers/cbus/tahvo.c b/drivers/cbus/tahvo.c index 6693a74e303..df9c0a0086b 100644 --- a/drivers/cbus/tahvo.c +++ b/drivers/cbus/tahvo.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include diff --git a/drivers/char/Makefile b/drivers/char/Makefile index 86b3a661adb..eb6f9920887 100644 --- a/drivers/char/Makefile +++ b/drivers/char/Makefile @@ -76,14 +76,15 @@ endif obj-$(CONFIG_TOSHIBA) += toshiba.o obj-$(CONFIG_I8K) += i8k.o obj-$(CONFIG_DS1620) += ds1620.o -obj-$(CONFIG_HW_RANDOM) += hw_random.o -obj-$(CONFIG_OMAP_RNG) += omap-rng.o +obj-$(CONFIG_HW_RANDOM) += hw_random/ obj-$(CONFIG_FTAPE) += ftape/ obj-$(CONFIG_COBALT_LCD) += lcd.o obj-$(CONFIG_PPDEV) += ppdev.o obj-$(CONFIG_NWBUTTON) += nwbutton.o obj-$(CONFIG_NWFLASH) += nwflash.o obj-$(CONFIG_SCx200_GPIO) += scx200_gpio.o +obj-$(CONFIG_PC8736x_GPIO) += pc8736x_gpio.o +obj-$(CONFIG_NSC_GPIO) += nsc_gpio.o obj-$(CONFIG_CS5535_GPIO) += cs5535_gpio.o obj-$(CONFIG_GPIO_VR41XX) += vr41xx_giu.o obj-$(CONFIG_TANBAC_TB0219) += tb0219.o diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index be30bf643a5..50123b308a7 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -63,12 +63,18 @@ config LEDS_S3C24XX This option enables support for LEDs connected to GPIO lines on Samsung S3C24XX series CPUs, such as the S3C2410 and S3C2440. -config LEDS_OMAP_PWM - tristate "LED Support for OMAP PWM-controlled LEDs" - depends on LEDS_CLASS && ARCH_OMAP && OMAP_DM_TIMER +config LEDS_AMS_DELTA + tristate "LED Support for the Amstrad Delta (E3)" + depends LEDS_CLASS && MACH_AMS_DELTA help - This options enables support for LEDs connected to GPIO lines - controlled by a PWM timer on OMAP CPUs. + This option enables support for the LEDs on Amstrad Delta (E3). + +config LEDS_NET48XX + tristate "LED Support for Soekris net48xx series Error LED" + depends on LEDS_CLASS && SCx200_GPIO + help + This option enables support for the Soekris net4801 and net4826 error + LED. config LEDS_OMAP tristate "LED Support for OMAP GPIO LEDs" @@ -76,6 +82,13 @@ config LEDS_OMAP help This option enables support for the LEDs on OMAP processors. +config LEDS_OMAP_PWM + tristate "LED Support for OMAP PWM-controlled LEDs" + depends on LEDS_CLASS && ARCH_OMAP && OMAP_DM_TIMER + help + This options enables support for LEDs connected to GPIO lines + controlled by a PWM timer on OMAP CPUs. + comment "LED Triggers" config LEDS_TRIGGERS @@ -100,5 +113,14 @@ config LEDS_TRIGGER_IDE_DISK This allows LEDs to be controlled by IDE disk activity. If unsure, say Y. +config LEDS_TRIGGER_HEARTBEAT + tristate "LED Heartbeat Trigger" + depends LEDS_TRIGGERS + help + This allows LEDs to be controlled by a CPU load average. + The flash frequency is a hyperbolic function of the 1-minute + load average. + If unsure, say Y. + endmenu diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index cd3dc5397a8..3bf3aa5f890 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -11,9 +11,12 @@ obj-$(CONFIG_LEDS_SPITZ) += leds-spitz.o obj-$(CONFIG_LEDS_IXP4XX) += leds-ixp4xx-gpio.o obj-$(CONFIG_LEDS_TOSA) += leds-tosa.o obj-$(CONFIG_LEDS_S3C24XX) += leds-s3c24xx.o +obj-$(CONFIG_LEDS_AMS_DELTA) += leds-ams-delta.o +obj-$(CONFIG_LEDS_NET48XX) += leds-net48xx.o obj-$(CONFIG_LEDS_OMAP) += leds-omap.o obj-$(CONFIG_LEDS_OMAP_PWM) += leds-omap-pwm.o # LED Triggers obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o obj-$(CONFIG_LEDS_TRIGGER_IDE_DISK) += ledtrig-ide-disk.o +obj-$(CONFIG_LEDS_TRIGGER_HEARTBEAT) += ledtrig-heartbeat.o diff --git a/drivers/mmc/omap.c b/drivers/mmc/omap.c index 722c55a75ad..0f1f99bb9de 100644 --- a/drivers/mmc/omap.c +++ b/drivers/mmc/omap.c @@ -11,7 +11,6 @@ * published by the Free Software Foundation. */ -#include #include #include #include diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index e4a3f73a544..52a9c057d48 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -23,6 +23,14 @@ config MTD_NAND_VERIFY_WRITE device thinks the write was successful, a bit could have been flipped accidentaly due to device wear or something else. +config MTD_NAND_ECC_SMC + bool "NAND ECC Smart Media byte order" + depends on MTD_NAND + default n + help + Software ECC according to the Smart Media Specification. + The original Linux implementation had byte 0 and 1 swapped. + config MTD_NAND_AUTCPU12 tristate "SmartMediaCard on autronix autcpu12 board" depends on MTD_NAND && ARCH_AUTCPU12 @@ -49,6 +57,12 @@ config MTD_NAND_SPIA help If you had to ask, you don't have one. Say 'N'. +config MTD_NAND_AMS_DELTA + tristate "NAND Flash device on Amstrad E3" + depends on MACH_AMS_DELTA && MTD_NAND + help + Support for NAND flash on Amstrad E3 (Delta). + config MTD_NAND_OMAP tristate "NAND Flash device on OMAP H3/H2/P2 boards" depends on ARM && ARCH_OMAP1 && MTD_NAND && (MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_PERSEUS2) @@ -64,10 +78,16 @@ config MTD_NAND_OMAP_HW config MTD_NAND_TOTO tristate "NAND Flash device on TOTO board" - depends on ARCH_OMAP && MTD_NAND + depends on ARCH_OMAP && MTD_NAND && BROKEN help Support for NAND flash on Texas Instruments Toto platform. +config MTD_NAND_TS7250 + tristate "NAND Flash device on TS-7250 board" + depends on MACH_TS72XX && MTD_NAND + help + Support for NAND flash on Technologic Systems TS-7250 platform. + config MTD_NAND_IDS tristate @@ -89,7 +109,7 @@ config MTD_NAND_RTC_FROM4 config MTD_NAND_PPCHAMELEONEVB tristate "NAND Flash device on PPChameleonEVB board" - depends on PPCHAMELEONEVB && MTD_NAND + depends on PPCHAMELEONEVB && MTD_NAND && BROKEN help This enables the NAND flash driver on the PPChameleon EVB Board. @@ -100,7 +120,7 @@ config MTD_NAND_S3C2410 This enables the NAND flash controller on the S3C2410 and S3C2440 SoCs - No board specfic support is done by this driver, each board + No board specific support is done by this driver, each board must advertise a platform_device for the driver to attach. config MTD_NAND_S3C2410_DEBUG @@ -122,6 +142,22 @@ config MTD_NAND_S3C2410_HWECC currently not be able to switch to software, as there is no implementation for ECC method used by the S3C2410 +config MTD_NAND_NDFC + tristate "NDFC NanD Flash Controller" + depends on MTD_NAND && 44x + help + NDFC Nand Flash Controllers are integrated in EP44x SoCs + +config MTD_NAND_S3C2410_CLKSTOP + bool "S3C2410 NAND IDLE clock stop" + depends on MTD_NAND_S3C2410 + default n + help + Stop the clock to the NAND controller when there is no chip + selected to save power. This will mean there is a small delay + when the is NAND chip selected or released, but will save + approximately 5mA of power when there is nothing happening. + config MTD_NAND_DISKONCHIP tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)" depends on MTD_NAND && EXPERIMENTAL @@ -196,11 +232,24 @@ config MTD_NAND_SHARPSL tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)" depends on MTD_NAND && ARCH_PXA +config MTD_NAND_CS553X + tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)" + depends on MTD_NAND && X86_32 && (X86_PC || X86_GENERICARCH) + help + The CS553x companion chips for the AMD Geode processor + include NAND flash controllers with built-in hardware ECC + capabilities; enabling this option will allow you to use + these. The driver will check the MSRs to verify that the + controller is enabled for NAND, and currently requires that + the controller be in MMIO mode. + + If you say "m", the module will be called "cs553x_nand.ko". + config MTD_NAND_NANDSIM tristate "Support for NAND Flash Simulator" depends on MTD_NAND && MTD_PARTITIONS help - The simulator may simulate verious NAND flash chips for the + The simulator may simulate various NAND flash chips for the MTD nand layer. endmenu diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index dc2929f996b..e7cf382297a 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_MTD_NAND) += nand.o nand_ecc.o obj-$(CONFIG_MTD_NAND_IDS) += nand_ids.o obj-$(CONFIG_MTD_NAND_SPIA) += spia.o +obj-$(CONFIG_MTD_NAND_AMS_DELTA) += ams-delta.o obj-$(CONFIG_MTD_NAND_TOTO) += toto.o obj-$(CONFIG_MTD_NAND_AUTCPU12) += autcpu12.o obj-$(CONFIG_MTD_NAND_EDB7312) += edb7312.o @@ -17,7 +18,10 @@ obj-$(CONFIG_MTD_NAND_DISKONCHIP) += diskonchip.o obj-$(CONFIG_MTD_NAND_H1900) += h1910.o obj-$(CONFIG_MTD_NAND_RTC_FROM4) += rtc_from4.o obj-$(CONFIG_MTD_NAND_SHARPSL) += sharpsl.o +obj-$(CONFIG_MTD_NAND_TS7250) += ts7250.o obj-$(CONFIG_MTD_NAND_NANDSIM) += nandsim.o +obj-$(CONFIG_MTD_NAND_CS553X) += cs553x_nand.o +obj-$(CONFIG_MTD_NAND_NDFC) += ndfc.o obj-$(CONFIG_MTD_NAND_OMAP) += omap-nand-flash.o obj-$(CONFIG_MTD_NAND_OMAP_HW) += omap-hw.o diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c index 7c3b46185d7..c39e031cb07 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c @@ -14,7 +14,7 @@ * This file is licenced under the GPL. */ -#include /* SA_INTERRUPT */ +#include /* IRQF_DISABLED */ #include #include #include @@ -353,7 +353,7 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver, retval = -ENXIO; goto err2; } - retval = usb_add_hcd(hcd, irq, SA_INTERRUPT); + retval = usb_add_hcd(hcd, irq, IRQF_DISABLED); if (retval) goto err2; diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index f8254f1a635..71ed17be51a 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -4,6 +4,21 @@ menu "Graphics support" +config FIRMWARE_EDID + bool "Enable firmware EDID" + default y + ---help--- + This enables access to the EDID transferred from the firmware. + On the i386, this is from the Video BIOS. Enable this if DDC/I2C + transfers do not work for your driver and if you are using + nvidiafb, i810fb or savagefb. + + In general, choosing Y for this option is safe. If you + experience extremely long delays while booting before you get + something on your display, try setting this to N. Matrox cards in + combination with certain motherboards and monitors are known to + suffer from this problem. + config FB tristate "Support for frame buffer devices" ---help--- @@ -70,21 +85,12 @@ config FB_MACMODES depends on FB default n -config FB_FIRMWARE_EDID - bool "Enable firmware EDID" - depends on FB - default y - ---help--- - This enables access to the EDID transferred from the firmware. - On the i386, this is from the Video BIOS. Enable this if DDC/I2C - transfers do not work for your driver and if you are using - nvidiafb, i810fb or savagefb. - - In general, choosing Y for this option is safe. If you - experience extremely long delays while booting before you get - something on your display, try setting this to N. Matrox cards in - combination with certain motherboards and monitors are known to - suffer from this problem. +config FB_BACKLIGHT + bool + depends on FB + select BACKLIGHT_LCD_SUPPORT + select BACKLIGHT_CLASS_DEVICE + default n config FB_MODE_HELPERS bool "Enable Video Mode Handling Helpers" @@ -167,6 +173,69 @@ config FB_ARMCLCD here and read . The module will be called amba-clcd. +choice + + depends on FB_ARMCLCD && (ARCH_LH7A40X || ARCH_LH7952X) + prompt "LCD Panel" + default FB_ARMCLCD_SHARP_LQ035Q7DB02 + +config FB_ARMCLCD_SHARP_LQ035Q7DB02_HRTFT + bool "LogicPD LCD 3.5\" QVGA w/HRTFT IC" + help + This is an implementation of the Sharp LQ035Q7DB02, a 3.5" + color QVGA, HRTFT panel. The LogicPD device includes an + an integrated HRTFT controller IC. + The native resolution is 240x320. + +config FB_ARMCLCD_SHARP_LQ057Q3DC02 + bool "LogicPD LCD 5.7\" QVGA" + help + This is an implementation of the Sharp LQ057Q3DC02, a 5.7" + color QVGA, TFT panel. The LogicPD device includes an + The native resolution is 320x240. + +config FB_ARMCLCD_SHARP_LQ64D343 + bool "LogicPD LCD 6.4\" VGA" + help + This is an implementation of the Sharp LQ64D343, a 6.4" + color VGA, TFT panel. The LogicPD device includes an + The native resolution is 640x480. + +config FB_ARMCLCD_SHARP_LQ10D368 + bool "LogicPD LCD 10.4\" VGA" + help + This is an implementation of the Sharp LQ10D368, a 10.4" + color VGA, TFT panel. The LogicPD device includes an + The native resolution is 640x480. + + +config FB_ARMCLCD_SHARP_LQ121S1DG41 + bool "LogicPD LCD 12.1\" SVGA" + help + This is an implementation of the Sharp LQ121S1DG41, a 12.1" + color SVGA, TFT panel. The LogicPD device includes an + The native resolution is 800x600. + + This panel requires a clock rate may be an integer fraction + of the base LCDCLK frequency. The driver will select the + highest frequency available that is lower than the maximum + allowed. The panel may flicker if the clock rate is + slower than the recommended minimum. + +config FB_ARMCLCD_AUO_A070VW01_WIDE + bool "AU Optronics A070VW01 LCD 7.0\" WIDE" + help + This is an implementation of the AU Optronics, a 7.0" + WIDE Color. The native resolution is 234x480. + +config FB_ARMCLCD_HITACHI + bool "Hitachi Wide Screen 800x480" + help + This is an implementation of the Hitachi 800x480. + +endchoice + + config FB_ACORN bool "Acorn VIDC support" depends on (FB = y) && ARM && (ARCH_ACORN || ARCH_CLPS7500) @@ -353,7 +422,7 @@ config FB_OF config FB_CONTROL bool "Apple \"control\" display support" - depends on (FB = y) && PPC_PMAC + depends on (FB = y) && PPC_PMAC && PPC32 select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT @@ -364,7 +433,7 @@ config FB_CONTROL config FB_PLATINUM bool "Apple \"platinum\" display support" - depends on (FB = y) && PPC_PMAC + depends on (FB = y) && PPC_PMAC && PPC32 select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT @@ -375,7 +444,7 @@ config FB_PLATINUM config FB_VALKYRIE bool "Apple \"valkyrie\" display support" - depends on (FB = y) && (MAC || PPC_PMAC) + depends on (FB = y) && (MAC || (PPC_PMAC && PPC32)) select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT @@ -386,7 +455,7 @@ config FB_VALKYRIE config FB_CT65550 bool "Chips 65550 display support" - depends on (FB = y) && PPC + depends on (FB = y) && PPC32 select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT @@ -483,10 +552,14 @@ config FB_VESA You will get a boot time penguin logo at no additional cost. Please read . If unsure, say Y. -config VIDEO_SELECT - bool - depends on FB_VESA - default y +config FB_IMAC + bool "Intel-based Macintosh Framebuffer Support" + depends on (FB = y) && X86 + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT + help + This is the frame buffer device driver for the Intel-based Macintosh config FB_HGA tristate "Hercules mono graphics support" @@ -510,12 +583,6 @@ config FB_HGA_ACCEL This will compile the Hercules mono graphics with acceleration functions. - -config VIDEO_SELECT - bool - depends on (FB = y) && X86 - default y - config FB_SGIVW tristate "SGI Visual Workstation framebuffer support" depends on FB && X86_VISWS @@ -654,6 +721,14 @@ config FB_NVIDIA_I2C independently validate video mode parameters, you should say Y here. +config FB_NVIDIA_BACKLIGHT + bool "Support for backlight control" + depends on FB_NVIDIA && PMAC_BACKLIGHT + select FB_BACKLIGHT + default y + help + Say Y here if you want to control the backlight of your display. + config FB_RIVA tristate "nVidia Riva support" depends on FB && PCI @@ -692,6 +767,14 @@ config FB_RIVA_DEBUG of debugging informations to provide to the maintainer when something goes wrong. +config FB_RIVA_BACKLIGHT + bool "Support for backlight control" + depends on FB_RIVA && PMAC_BACKLIGHT + select FB_BACKLIGHT + default y + help + Say Y here if you want to control the backlight of your display. + config FB_I810 tristate "Intel 810/815 support (EXPERIMENTAL)" depends on FB && EXPERIMENTAL && PCI && X86_32 @@ -743,7 +826,7 @@ config FB_I810_I2C config FB_INTEL tristate "Intel 830M/845G/852GM/855GM/865G support (EXPERIMENTAL)" - depends on FB && EXPERIMENTAL && PCI && X86_32 + depends on FB && EXPERIMENTAL && PCI && X86 select AGP select AGP_INTEL select FB_MODE_HELPERS @@ -930,6 +1013,7 @@ config FB_RADEON There is a product page at http://apps.ati.com/ATIcompare/ + config FB_RADEON_I2C bool "DDC/I2C for ATI Radeon support" depends on FB_RADEON @@ -937,6 +1021,14 @@ config FB_RADEON_I2C help Say Y here if you want DDC/I2C support for your Radeon board. +config FB_RADEON_BACKLIGHT + bool "Support for backlight control" + depends on FB_RADEON && PMAC_BACKLIGHT + select FB_BACKLIGHT + default y + help + Say Y here if you want to control the backlight of your display. + config FB_RADEON_DEBUG bool "Lots of debug output from Radeon driver" depends on FB_RADEON @@ -961,6 +1053,14 @@ config FB_ATY128 To compile this driver as a module, choose M here: the module will be called aty128fb. +config FB_ATY128_BACKLIGHT + bool "Support for backlight control" + depends on FB_ATY128 && PMAC_BACKLIGHT + select FB_BACKLIGHT + default y + help + Say Y here if you want to control the backlight of your display. + config FB_ATY tristate "ATI Mach64 display support" if PCI || ATARI depends on FB && !SPARC32 @@ -1003,6 +1103,14 @@ config FB_ATY_GX is at . +config FB_ATY_BACKLIGHT + bool "Support for backlight control" + depends on FB_ATY && PMAC_BACKLIGHT + select FB_BACKLIGHT + default y + help + Say Y here if you want to control the backlight of your display. + config FB_S3TRIO bool "S3 Trio display support" depends on (FB = y) && PPC && BROKEN @@ -1402,6 +1510,26 @@ config FB_PXA_PARAMETERS describes the available parameters. +config FB_MBX + tristate "2700G LCD framebuffer support" + depends on FB && ARCH_PXA + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT + ---help--- + Framebuffer driver for the Intel 2700G (Marathon) Graphics + Accelerator + +config FB_MBX_DEBUG + bool "Enable debugging info via debugfs" + depends on FB_MBX && DEBUG_FS + default n + ---help--- + Enable this if you want debugging information using the debug + filesystem (debugfs) + + If unsure, say N. + config FB_W100 tristate "W100 frame buffer support" depends on FB && PXA_SHARPSL @@ -1441,7 +1569,20 @@ config FB_S3C2410_DEBUG Turn on debugging messages. Note that you can set/unset at run time through sysfs -source "drivers/video/omap/Kconfig" +config FB_PNX4008_DUM + tristate "Display Update Module support on Philips PNX4008 board" + depends on FB && ARCH_PNX4008 + ---help--- + Say Y here to enable support for PNX4008 Display Update Module (DUM) + +config FB_PNX4008_DUM_RGB + tristate "RGB Framebuffer support on Philips PNX4008 board" + depends on FB_PNX4008_DUM + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT + ---help--- + Say Y here to enable support for PNX4008 RGB Framebuffer config FB_VIRTUAL tristate "Virtual Frame Buffer support (ONLY FOR TESTING!)" @@ -1463,6 +1604,9 @@ config FB_VIRTUAL module will be called vfb. If unsure, say N. + +source "drivers/video/omap/Kconfig" + if VT source "drivers/video/console/Kconfig" endif @@ -1471,7 +1615,7 @@ if FB || SGI_NEWPORT_CONSOLE source "drivers/video/logo/Kconfig" endif -if FB && SYSFS +if SYSFS source "drivers/video/backlight/Kconfig" endif diff --git a/kernel/printk.c b/kernel/printk.c index 99d259fa589..0876c7fe876 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -24,8 +24,8 @@ #include #include #include +#include #include /* For in_interrupt() */ -#include #include #include #include @@ -56,7 +56,7 @@ int console_printk[4] = { DEFAULT_CONSOLE_LOGLEVEL, /* default_console_loglevel */ }; -EXPORT_SYMBOL(console_printk); +EXPORT_UNUSED_SYMBOL(console_printk); /* June 2006 */ /* * Low lever drivers may need that to know if they can schedule in @@ -71,6 +71,7 @@ EXPORT_SYMBOL(oops_in_progress); * driver system. */ static DECLARE_MUTEX(console_sem); +static DECLARE_MUTEX(secondary_console_sem); struct console *console_drivers; /* * This is used for debugging the mess that is the VT code by @@ -80,7 +81,7 @@ struct console *console_drivers; * path in the console code where we end up in places I want * locked without the console sempahore held */ -static int console_locked; +static int console_locked, console_suspended; /* * logbuf_lock protects log_buf, log_start, log_end, con_start and logged_chars @@ -330,7 +331,9 @@ static void __call_console_drivers(unsigned long start, unsigned long end) struct console *con; for (con = console_drivers; con; con = con->next) { - if ((con->flags & CON_ENABLED) && con->write) + if ((con->flags & CON_ENABLED) && con->write && + (cpu_online(smp_processor_id()) || + (con->flags & CON_ANYTIME))) con->write(con, &LOG_BUF(start), end - start); } } @@ -470,6 +473,18 @@ __attribute__((weak)) unsigned long long printk_clock(void) return sched_clock(); } +/* Check if we have any console registered that can be called early in boot. */ +static int have_callable_console(void) +{ + struct console *con; + + for (con = console_drivers; con; con = con->next) + if (con->flags & CON_ANYTIME) + return 1; + + return 0; +} + /** * printk - print a kernel message * @fmt: format string @@ -520,7 +535,9 @@ asmlinkage int vprintk(const char *fmt, va_list args) zap_locks(); /* This stops the holder of console_sem just where we want him */ - spin_lock_irqsave(&logbuf_lock, flags); + local_irq_save(flags); + lockdep_off(); + spin_lock(&logbuf_lock); printk_cpu = smp_processor_id(); /* Emit the output into the temporary buffer */ @@ -587,27 +604,31 @@ asmlinkage int vprintk(const char *fmt, va_list args) log_level_unknown = 1; } - if (!cpu_online(smp_processor_id())) { + if (!down_trylock(&console_sem)) { /* - * Some console drivers may assume that per-cpu resources have - * been allocated. So don't allow them to be called by this - * CPU until it is officially up. We shouldn't be calling into - * random console drivers on a CPU which doesn't exist yet.. + * We own the drivers. We can drop the spinlock and + * let release_console_sem() print the text, maybe ... */ - printk_cpu = UINT_MAX; - spin_unlock_irqrestore(&logbuf_lock, flags); - goto out; - } - if (!down_trylock(&console_sem)) { console_locked = 1; + printk_cpu = UINT_MAX; + spin_unlock(&logbuf_lock); + /* - * We own the drivers. We can drop the spinlock and let - * release_console_sem() print the text + * Console drivers may assume that per-cpu resources have + * been allocated. So unless they're explicitly marked as + * being able to cope (CON_ANYTIME) don't call them until + * this CPU is officially up. */ - printk_cpu = UINT_MAX; - spin_unlock_irqrestore(&logbuf_lock, flags); - console_may_schedule = 0; - release_console_sem(); + if (cpu_online(smp_processor_id()) || have_callable_console()) { + console_may_schedule = 0; + release_console_sem(); + } else { + /* Release by hand to avoid flushing the buffer. */ + console_locked = 0; + up(&console_sem); + } + lockdep_on(); + local_irq_restore(flags); } else { /* * Someone else owns the drivers. We drop the spinlock, which @@ -615,9 +636,11 @@ asmlinkage int vprintk(const char *fmt, va_list args) * console drivers with the output which we just produced. */ printk_cpu = UINT_MAX; - spin_unlock_irqrestore(&logbuf_lock, flags); + spin_unlock(&logbuf_lock); + lockdep_on(); + local_irq_restore(flags); } -out: + preempt_enable(); return printed_len; } @@ -719,6 +742,23 @@ int __init add_preferred_console(char *name, int idx, char *options) return 0; } +/** + * suspend_console - suspend the console subsystem + * + * This disables printk() while we go into suspend states + */ +void suspend_console(void) +{ + acquire_console_sem(); + console_suspended = 1; +} + +void resume_console(void) +{ + console_suspended = 0; + release_console_sem(); +} + /** * acquire_console_sem - lock the console system for exclusive use. * @@ -730,6 +770,10 @@ int __init add_preferred_console(char *name, int idx, char *options) void acquire_console_sem(void) { BUG_ON(in_interrupt()); + if (console_suspended) { + down(&secondary_console_sem); + return; + } down(&console_sem); console_locked = 1; console_may_schedule = 1; @@ -750,7 +794,7 @@ int is_console_locked(void) { return console_locked; } -EXPORT_SYMBOL(is_console_locked); +EXPORT_UNUSED_SYMBOL(is_console_locked); /* June 2006 */ /** * release_console_sem - unlock the console system @@ -772,6 +816,13 @@ void release_console_sem(void) unsigned long _con_start, _log_end; unsigned long wake_klogd = 0; + if (console_suspended) { + up(&secondary_console_sem); + return; + } + + console_may_schedule = 0; + for ( ; ; ) { spin_lock_irqsave(&logbuf_lock, flags); wake_klogd |= log_start - log_end; @@ -785,11 +836,17 @@ void release_console_sem(void) local_irq_restore(flags); } console_locked = 0; - console_may_schedule = 0; up(&console_sem); spin_unlock_irqrestore(&logbuf_lock, flags); - if (wake_klogd && !oops_in_progress && waitqueue_active(&log_wait)) - wake_up_interruptible(&log_wait); + if (wake_klogd && !oops_in_progress && waitqueue_active(&log_wait)) { + /* + * If we printk from within the lock dependency code, + * from within the scheduler code, then do not lock + * up due to self-recursion: + */ + if (!lockdep_internal()) + wake_up_interruptible(&log_wait); + } } EXPORT_SYMBOL(release_console_sem);