[RFC,v1,04/11] genirq: Move field 'handler_data' from struct irq_data into struct irq_common_data

Message ID	1430709339-29083-5-git-send-email-jiang.liu@linux.intel.com (mailing list archive)
State	New, archived
Delegated to:	Bjorn Helgaas
Headers	show Return-Path: <linux-pci-owner@kernel.org> From: Jiang Liu <jiang.liu@linux.intel.com> To: Thomas Gleixner <tglx@linutronix.de>, Bjorn Helgaas <bhelgaas@google.com>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>, "Rafael J. Wysocki" <rjw@rjwysocki.net>, Randy Dunlap <rdunlap@infradead.org>, Yinghai Lu <yinghai@kernel.org>, Borislav Petkov <bp@alien8.de>, "David S. Miller" <davem@davemloft.net>, x86@kernel.org, Linus Walleij <linus.walleij@linaro.org>, Alexandre Courbot <gnurou@gmail.com>, Simon Horman <horms@verge.net.au>, Magnus Damm <magnus.damm@gmail.com>, bob picco <bpicco@meloft.net>, Jiang Liu <jiang.liu@linux.intel.com>, Andy Lutomirski <luto@amacapital.net>, Jason Cooper <jason@lakedaemon.net>, Grant Likely <grant.likely@linaro.org>, Kevin Cernekee <cernekee@gmail.com>, Marc Zyngier <marc.zyngier@arm.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>, Tony Luck <tony.luck@intel.com>, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org, sparclinux@vger.kernel.org, linux-gpio@vger.kernel.org, linux-sh@vger.kernel.org Subject: [RFC v1 04/11] genirq: Move field 'handler_data' from struct irq_data into struct irq_common_data Date: Mon, 4 May 2015 11:15:32 +0800 Message-Id: <1430709339-29083-5-git-send-email-jiang.liu@linux.intel.com> In-Reply-To: <1430709339-29083-1-git-send-email-jiang.liu@linux.intel.com> References: <1430709339-29083-1-git-send-email-jiang.liu@linux.intel.com> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk

diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c index 4033c23bdfa6..5130f6e3e68e 100644 --- a/arch/sparc/kernel/irq_64.c +++ b/arch/sparc/kernel/irq_64.c @@ -210,21 +210,21 @@ struct irq_handler_data { static inline unsigned int irq_data_to_handle(struct irq_data *data) { - struct irq_handler_data *ihd = data->handler_data; + struct irq_handler_data *ihd = irq_data_get_irq_handler_data(data); return ihd->dev_handle; } static inline unsigned int irq_data_to_ino(struct irq_data *data) { - struct irq_handler_data *ihd = data->handler_data; + struct irq_handler_data *ihd = irq_data_get_irq_handler_data(data); return ihd->dev_ino; } static inline unsigned long irq_data_to_sysino(struct irq_data *data) { - struct irq_handler_data *ihd = data->handler_data; + struct irq_handler_data *ihd = irq_data_get_irq_handler_data(data); return ihd->sysino; } @@ -370,8 +370,9 @@ static int irq_choose_cpu(unsigned int irq, const struct cpumask *affinity) static void sun4u_irq_enable(struct irq_data *data) { - struct irq_handler_data *handler_data = data->handler_data; + struct irq_handler_data *handler_data; + handler_data = irq_data_get_irq_handler_data(data); if (likely(handler_data)) { unsigned long cpuid, imap, val; unsigned int tid; @@ -393,8 +394,9 @@ static void sun4u_irq_enable(struct irq_data *data) static int sun4u_set_affinity(struct irq_data *data, const struct cpumask *mask, bool force) { - struct irq_handler_data *handler_data = data->handler_data; + struct irq_handler_data *handler_data; + handler_data = irq_data_get_irq_handler_data(data); if (likely(handler_data)) { unsigned long cpuid, imap, val; unsigned int tid; @@ -438,8 +440,9 @@ static void sun4u_irq_disable(struct irq_data *data) static void sun4u_irq_eoi(struct irq_data *data) { - struct irq_handler_data *handler_data = data->handler_data; + struct irq_handler_data *handler_data; + handler_data = irq_data_get_irq_handler_data(data); if (likely(handler_data)) upa_writeq(ICLR_IDLE, handler_data->iclr); } diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c index a1bb2675b280..a87d0e47c168 100644 --- a/arch/sparc/kernel/sun4d_irq.c +++ b/arch/sparc/kernel/sun4d_irq.c @@ -188,7 +188,7 @@ void sun4d_handler_irq(unsigned int pil, struct pt_regs *regs) static void sun4d_mask_irq(struct irq_data *data) { - struct sun4d_handler_data *handler_data = data->handler_data; + struct sun4d_handler_data *handler_data = irq_data_get_irq_handler_data(data); unsigned int real_irq; #ifdef CONFIG_SMP int cpuid = handler_data->cpuid; @@ -206,7 +206,7 @@ static void sun4d_mask_irq(struct irq_data *data) static void sun4d_unmask_irq(struct irq_data *data) { - struct sun4d_handler_data *handler_data = data->handler_data; + struct sun4d_handler_data *handler_data = irq_data_get_irq_handler_data(data); unsigned int real_irq; #ifdef CONFIG_SMP int cpuid = handler_data->cpuid; diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c index 8bb3b3fddea7..da737c712fa8 100644 --- a/arch/sparc/kernel/sun4m_irq.c +++ b/arch/sparc/kernel/sun4m_irq.c @@ -188,9 +188,10 @@ static unsigned long sun4m_imask[0x50] = { static void sun4m_mask_irq(struct irq_data *data) { - struct sun4m_handler_data *handler_data = data->handler_data; + struct sun4m_handler_data *handler_data; int cpu = smp_processor_id(); + handler_data = irq_data_get_irq_handler_data(data); if (handler_data->mask) { unsigned long flags; @@ -206,9 +207,10 @@ static void sun4m_mask_irq(struct irq_data *data) static void sun4m_unmask_irq(struct irq_data *data) { - struct sun4m_handler_data *handler_data = data->handler_data; + struct sun4m_handler_data *handler_data; int cpu = smp_processor_id(); + handler_data = irq_data_get_irq_handler_data(data); if (handler_data->mask) { unsigned long flags; diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c index 58fde664e7c0..e87655fcf30e 100644 --- a/arch/x86/kernel/apic/msi.c +++ b/arch/x86/kernel/apic/msi.c @@ -263,7 +263,7 @@ static inline int hpet_dev_id(struct irq_domain *domain) static void hpet_msi_write_msg(struct irq_data *data, struct msi_msg *msg) { - hpet_msi_write(data->handler_data, msg); + hpet_msi_write(irq_data_get_irq_handler_data(data), msg); } static struct irq_chip hpet_msi_controller = { diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c index e2449cf38b06..40cf79a55fe7 100644 --- a/arch/x86/kernel/hpet.c +++ b/arch/x86/kernel/hpet.c @@ -426,7 +426,7 @@ static struct irq_domain *hpet_domain; void hpet_msi_unmask(struct irq_data *data) { - struct hpet_dev *hdev = data->handler_data; + struct hpet_dev *hdev = irq_data_get_irq_handler_data(data); unsigned int cfg; /* unmask it */ @@ -437,7 +437,7 @@ void hpet_msi_unmask(struct irq_data *data) void hpet_msi_mask(struct irq_data *data) { - struct hpet_dev *hdev = data->handler_data; + struct hpet_dev *hdev = irq_data_get_irq_handler_data(data); unsigned int cfg; /* mask it */ diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c index c5e05c82d67c..477d5b8616ab 100644 --- a/drivers/gpio/gpio-davinci.c +++ b/drivers/gpio/gpio-davinci.c @@ -396,7 +396,7 @@ static int gpio_irq_type_unbanked(struct irq_data *data, unsigned trigger) struct davinci_gpio_regs __iomem *g; u32 mask; - d = (struct davinci_gpio_controller *)data->handler_data; + d = (struct davinci_gpio_controller *)irq_data_get_irq_handler_data(data); g = (struct davinci_gpio_regs __iomem *)d->regs; mask = __gpio_mask(data->irq - d->gpio_irq); diff --git a/drivers/sh/intc/virq.c b/drivers/sh/intc/virq.c index f30ac9354ff2..3dbc21696924 100644 --- a/drivers/sh/intc/virq.c +++ b/drivers/sh/intc/virq.c @@ -87,8 +87,8 @@ static int add_virq_to_pirq(unsigned int irq, unsigned int virq) struct irq_data *data = irq_get_irq_data(irq); /* scan for duplicates */ - last = (struct intc_virq_list **)&data->handler_data; - for_each_virq(entry, data->handler_data) { + last = (struct intc_virq_list **)&data->common->handler_data; + for_each_virq(entry, irq_data_get_irq_handler_data(data)) { if (entry->irq == virq) return 0; last = &entry->next; diff --git a/include/linux/irq.h b/include/linux/irq.h index 0138f046642c..43581e166298 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -130,12 +130,14 @@ struct irq_domain; * @state_use_accessors: status information for irq chip functions. * Use accessor functions to deal with it * @node: node index useful for balancing + * @handler_data: per-IRQ data for the irq_chip methods */ struct irq_common_data { unsigned int state_use_accessors; #ifdef CONFIG_NUMA unsigned int node; #endif + void *handler_data; }; /** @@ -149,7 +151,6 @@ struct irq_common_data { * between hwirq number and linux irq number. * @parent_data: pointer to parent struct irq_data to support hierarchy * irq_domain - * @handler_data: per-IRQ data for the irq_chip methods * @chip_data: platform-specific per-chip private data for the chip * methods, to allow shared chip implementations * @msi_desc: MSI descriptor @@ -169,7 +170,6 @@ struct irq_data { #ifdef CONFIG_IRQ_DOMAIN_HIERARCHY struct irq_data *parent_data; #endif - void *handler_data; void *chip_data; struct msi_desc *msi_desc; cpumask_var_t affinity; @@ -611,12 +611,12 @@ static inline void *irq_data_get_irq_chip_data(struct irq_data *d) static inline void *irq_get_handler_data(unsigned int irq) { struct irq_data *d = irq_get_irq_data(irq); - return d ? d->handler_data : NULL; + return d ? d->common->handler_data : NULL; } static inline void *irq_data_get_irq_handler_data(struct irq_data *d) { - return d->handler_data; + return d->common->handler_data; } static inline struct msi_desc *irq_get_msi_desc(unsigned int irq) diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index 3010e99abf3e..5d5776f40129 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -111,7 +111,7 @@ static inline void *irq_desc_get_chip_data(struct irq_desc *desc) static inline void *irq_desc_get_handler_data(struct irq_desc *desc) { - return desc->irq_data.handler_data; + return desc->irq_common_data.handler_data; } static inline struct msi_desc *irq_desc_get_msi_desc(struct irq_desc *desc) diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index eb9a4ea394ab..46c487fc71dd 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -83,7 +83,7 @@ int irq_set_handler_data(unsigned int irq, void *data) if (!desc) return -EINVAL; - desc->irq_data.handler_data = data; + desc->irq_common_data.handler_data = data; irq_put_desc_unlock(desc, flags); return 0; } diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index 0c3057e42906..7f881792ad5f 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -72,11 +72,12 @@ static void desc_set_defaults(unsigned int irq, struct irq_desc *desc, int node, { int cpu; + desc->irq_common_data.handler_data = NULL; + desc->irq_data.common = &desc->irq_common_data; desc->irq_data.irq = irq; desc->irq_data.chip = &no_irq_chip; desc->irq_data.chip_data = NULL; - desc->irq_data.handler_data = NULL; desc->irq_data.msi_desc = NULL; irq_settings_clr_and_set(desc, ~0, _IRQ_DEFAULT_INIT_FLAGS); irqd_set(&desc->irq_data, IRQD_IRQ_DISABLED);

[RFC,v1,04/11] genirq: Move field 'handler_data' from struct irq_data into struct irq_common_data

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