From e09b41010ba33a20a87472ee821fa407a5b8da36 Mon Sep 17 00:00:00 2001 From: José Pekkarinen Date: Mon, 11 Apr 2016 10:41:07 +0300 Subject: These changes are the raw update to linux-4.4.6-rt14. Kernel sources are taken from kernel.org, and rt patch from the rt wiki download page. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen --- kernel/drivers/sh/intc/chip.c | 6 +++--- kernel/drivers/sh/intc/core.c | 9 +++++---- kernel/drivers/sh/intc/internals.h | 10 +--------- kernel/drivers/sh/intc/virq.c | 32 +++++++++++++++++++------------- 4 files changed, 28 insertions(+), 29 deletions(-) (limited to 'kernel/drivers/sh/intc') diff --git a/kernel/drivers/sh/intc/chip.c b/kernel/drivers/sh/intc/chip.c index 46427b48e..358df7510 100644 --- a/kernel/drivers/sh/intc/chip.c +++ b/kernel/drivers/sh/intc/chip.c @@ -22,7 +22,7 @@ void _intc_enable(struct irq_data *data, unsigned long handle) for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_E(handle)); cpu++) { #ifdef CONFIG_SMP - if (!cpumask_test_cpu(cpu, data->affinity)) + if (!cpumask_test_cpu(cpu, irq_data_get_affinity_mask(data))) continue; #endif addr = INTC_REG(d, _INTC_ADDR_E(handle), cpu); @@ -50,7 +50,7 @@ static void intc_disable(struct irq_data *data) for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_D(handle)); cpu++) { #ifdef CONFIG_SMP - if (!cpumask_test_cpu(cpu, data->affinity)) + if (!cpumask_test_cpu(cpu, irq_data_get_affinity_mask(data))) continue; #endif addr = INTC_REG(d, _INTC_ADDR_D(handle), cpu); @@ -72,7 +72,7 @@ static int intc_set_affinity(struct irq_data *data, if (!cpumask_intersects(cpumask, cpu_online_mask)) return -1; - cpumask_copy(data->affinity, cpumask); + cpumask_copy(irq_data_get_affinity_mask(data), cpumask); return IRQ_SET_MASK_OK_NOCOPY; } diff --git a/kernel/drivers/sh/intc/core.c b/kernel/drivers/sh/intc/core.c index 81f22980b..8e72bcbd3 100644 --- a/kernel/drivers/sh/intc/core.c +++ b/kernel/drivers/sh/intc/core.c @@ -65,9 +65,9 @@ void intc_set_prio_level(unsigned int irq, unsigned int level) raw_spin_unlock_irqrestore(&intc_big_lock, flags); } -static void intc_redirect_irq(unsigned int irq, struct irq_desc *desc) +static void intc_redirect_irq(struct irq_desc *desc) { - generic_handle_irq((unsigned int)irq_get_handler_data(irq)); + generic_handle_irq((unsigned int)irq_desc_get_handler_data(desc)); } static void __init intc_register_irq(struct intc_desc *desc, @@ -366,8 +366,9 @@ int __init register_intc_controller(struct intc_desc *desc) /* redirect this interrupts to the first one */ irq_set_chip(irq2, &dummy_irq_chip); - irq_set_chained_handler(irq2, intc_redirect_irq); - irq_set_handler_data(irq2, (void *)irq); + irq_set_chained_handler_and_data(irq2, + intc_redirect_irq, + (void *)irq); } } diff --git a/kernel/drivers/sh/intc/internals.h b/kernel/drivers/sh/intc/internals.h index 7dff08e2a..6ce7f0d26 100644 --- a/kernel/drivers/sh/intc/internals.h +++ b/kernel/drivers/sh/intc/internals.h @@ -99,15 +99,7 @@ static inline struct intc_desc_int *get_intc_desc(unsigned int irq) */ static inline void activate_irq(int irq) { -#ifdef CONFIG_ARM - /* ARM requires an extra step to clear IRQ_NOREQUEST, which it - * sets on behalf of every irq_chip. Also sets IRQ_NOPROBE. - */ - set_irq_flags(irq, IRQF_VALID); -#else - /* same effect on other architectures */ - irq_set_noprobe(irq); -#endif + irq_modify_status(irq, IRQ_NOREQUEST, IRQ_NOPROBE); } static inline int intc_handle_int_cmp(const void *a, const void *b) diff --git a/kernel/drivers/sh/intc/virq.c b/kernel/drivers/sh/intc/virq.c index f30ac9354..e7899624a 100644 --- a/kernel/drivers/sh/intc/virq.c +++ b/kernel/drivers/sh/intc/virq.c @@ -83,12 +83,11 @@ EXPORT_SYMBOL_GPL(intc_irq_lookup); static int add_virq_to_pirq(unsigned int irq, unsigned int virq) { - struct intc_virq_list **last, *entry; - struct irq_data *data = irq_get_irq_data(irq); + struct intc_virq_list *entry; + struct intc_virq_list **last = NULL; /* scan for duplicates */ - last = (struct intc_virq_list **)&data->handler_data; - for_each_virq(entry, data->handler_data) { + for_each_virq(entry, irq_get_handler_data(irq)) { if (entry->irq == virq) return 0; last = &entry->next; @@ -102,14 +101,18 @@ static int add_virq_to_pirq(unsigned int irq, unsigned int virq) entry->irq = virq; - *last = entry; + if (last) + *last = entry; + else + irq_set_handler_data(irq, entry); return 0; } -static void intc_virq_handler(unsigned int irq, struct irq_desc *desc) +static void intc_virq_handler(struct irq_desc *desc) { - struct irq_data *data = irq_get_irq_data(irq); + unsigned int irq = irq_desc_get_irq(desc); + struct irq_data *data = irq_desc_get_irq_data(desc); struct irq_chip *chip = irq_data_get_irq_chip(data); struct intc_virq_list *entry, *vlist = irq_data_get_irq_handler_data(data); struct intc_desc_int *d = get_intc_desc(irq); @@ -118,12 +121,14 @@ static void intc_virq_handler(unsigned int irq, struct irq_desc *desc) for_each_virq(entry, vlist) { unsigned long addr, handle; + struct irq_desc *vdesc = irq_to_desc(entry->irq); - handle = (unsigned long)irq_get_handler_data(entry->irq); - addr = INTC_REG(d, _INTC_ADDR_E(handle), 0); - - if (intc_reg_fns[_INTC_FN(handle)](addr, handle, 0)) - generic_handle_irq(entry->irq); + if (vdesc) { + handle = (unsigned long)irq_desc_get_handler_data(vdesc); + addr = INTC_REG(d, _INTC_ADDR_E(handle), 0); + if (intc_reg_fns[_INTC_FN(handle)](addr, handle, 0)) + generic_handle_irq_desc(vdesc); + } } chip->irq_unmask(data); @@ -243,8 +248,9 @@ restart: */ irq_set_nothread(irq); - irq_set_chained_handler(entry->pirq, intc_virq_handler); + /* Set handler data before installing the handler */ add_virq_to_pirq(entry->pirq, irq); + irq_set_chained_handler(entry->pirq, intc_virq_handler); radix_tree_tag_clear(&d->tree, entry->enum_id, INTC_TAG_VIRQ_NEEDS_ALLOC); -- cgit 1.2.3-korg