Re: [RFC part2 PATCH 7/9] irqdomain: Add a new API irq_create_acpi_mapping()
On Wed, Dec 4, 2013 at 4:38 PM, Hanjun Guo wrote: > On 2013年12月04日 01:25, Rob Herring wrote: >> On Tue, Dec 3, 2013 at 10:39 AM, Hanjun Guo wrote: >>> >>> From: Amit Daniel Kachhap >>> >>> This patch introduces a new API for acpi based irq mapping. >>> >>> [hanjun: Rework this patch to delete the reference to >>> gic_irq_domain_xlate() which can simplify the code a lot.] >>> >>> Signed-off-by: Amit Daniel Kachhap >>> Signed-off-by: Hanjun Guo (...) >>> +EXPORT_SYMBOL_GPL(irq_create_acpi_mapping); >> >> There is nothing ACPI specific about this function. This is simply >> irq_create_of_mapping w/o translating of_phandle_args to a hwirq and >> type. So I expect the code to be re-factored here to mirror that. > > Sorry for my bad english, do you mean create a OF free function > and call that from the OF function ? Sounds like a good idea, like if you move the OF function into kernel/irq/irqdomain.c and get rid of the OF specific naming then use that same function from ACPI too. It's all about using the irq_default_domain in a standard way after all right? Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [RFC part2 PATCH 7/9] irqdomain: Add a new API irq_create_acpi_mapping()
On 2013年12月04日 01:25, Rob Herring wrote: On Tue, Dec 3, 2013 at 10:39 AM, Hanjun Guo wrote: From: Amit Daniel Kachhap This patch introduces a new API for acpi based irq mapping. [hanjun: Rework this patch to delete the reference to gic_irq_domain_xlate() which can simplify the code a lot.] Signed-off-by: Amit Daniel Kachhap Signed-off-by: Hanjun Guo --- include/linux/acpi.h |2 ++ kernel/irq/irqdomain.c | 27 +++ 2 files changed, 29 insertions(+) diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 1e6a0ac..edd5806 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -141,6 +141,8 @@ int acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu); int acpi_unmap_lsapic(int cpu); #endif /* CONFIG_ACPI_HOTPLUG_CPU */ +unsigned int irq_create_acpi_mapping(irq_hw_number_t hwirq, +unsigned int type); int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); void acpi_irq_stats_init(void); diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index cf68bb3..c661552 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -501,6 +501,33 @@ unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data) } EXPORT_SYMBOL_GPL(irq_create_of_mapping); +#ifdef CONFIG_ACPI +unsigned int irq_create_acpi_mapping(irq_hw_number_t hwirq, + unsigned int type) +{ + struct irq_domain *domain; + unsigned int virq; + + domain = irq_default_domain; + if (!domain) { + pr_warn("no irq domain found !\n"); + return 0; + } + + /* Create mapping */ + virq = irq_create_mapping(domain, hwirq); + if (!virq) + return virq; + + /* Set type if specified and different than the current one */ + if (type != IRQ_TYPE_NONE && + type != irq_get_trigger_type(virq)) + irq_set_irq_type(virq, type); + return virq; +} +EXPORT_SYMBOL_GPL(irq_create_acpi_mapping); There is nothing ACPI specific about this function. This is simply irq_create_of_mapping w/o translating of_phandle_args to a hwirq and type. So I expect the code to be re-factored here to mirror that. Sorry for my bad english, do you mean create a OF free function and call that from the OF function ? Thanks Hanjun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [RFC part2 PATCH 7/9] irqdomain: Add a new API irq_create_acpi_mapping()
On Tue, Dec 3, 2013 at 10:39 AM, Hanjun Guo wrote: > From: Amit Daniel Kachhap > > This patch introduces a new API for acpi based irq mapping. > > [hanjun: Rework this patch to delete the reference to > gic_irq_domain_xlate() which can simplify the code a lot.] > > Signed-off-by: Amit Daniel Kachhap > Signed-off-by: Hanjun Guo > --- > include/linux/acpi.h |2 ++ > kernel/irq/irqdomain.c | 27 +++ > 2 files changed, 29 insertions(+) > > diff --git a/include/linux/acpi.h b/include/linux/acpi.h > index 1e6a0ac..edd5806 100644 > --- a/include/linux/acpi.h > +++ b/include/linux/acpi.h > @@ -141,6 +141,8 @@ int acpi_map_lsapic(acpi_handle handle, int physid, int > *pcpu); > int acpi_unmap_lsapic(int cpu); > #endif /* CONFIG_ACPI_HOTPLUG_CPU */ > > +unsigned int irq_create_acpi_mapping(irq_hw_number_t hwirq, > +unsigned int type); > int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); > int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); > void acpi_irq_stats_init(void); > diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c > index cf68bb3..c661552 100644 > --- a/kernel/irq/irqdomain.c > +++ b/kernel/irq/irqdomain.c > @@ -501,6 +501,33 @@ unsigned int irq_create_of_mapping(struct > of_phandle_args *irq_data) > } > EXPORT_SYMBOL_GPL(irq_create_of_mapping); > > +#ifdef CONFIG_ACPI > +unsigned int irq_create_acpi_mapping(irq_hw_number_t hwirq, > + unsigned int type) > +{ > + struct irq_domain *domain; > + unsigned int virq; > + > + domain = irq_default_domain; > + if (!domain) { > + pr_warn("no irq domain found !\n"); > + return 0; > + } > + > + /* Create mapping */ > + virq = irq_create_mapping(domain, hwirq); > + if (!virq) > + return virq; > + > + /* Set type if specified and different than the current one */ > + if (type != IRQ_TYPE_NONE && > + type != irq_get_trigger_type(virq)) > + irq_set_irq_type(virq, type); > + return virq; > +} > +EXPORT_SYMBOL_GPL(irq_create_acpi_mapping); There is nothing ACPI specific about this function. This is simply irq_create_of_mapping w/o translating of_phandle_args to a hwirq and type. So I expect the code to be re-factored here to mirror that. Rob -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/