From 95d76acc7518d566df18d67c1343bb375b78d1f3 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Mon, 9 Jun 2014 16:19:48 +0800 Subject: x86, irq: Count legacy IRQs by legacy_pic->nr_legacy_irqs instead of NR_IRQS_LEGACY Some platforms, such as Intel MID and mshypv, do not support legacy interrupt controllers. So count legacy IRQs by legacy_pic->nr_legacy_irqs instead of hard-coded NR_IRQS_LEGACY. Signed-off-by: Jiang Liu Cc: Tony Luck Cc: Joerg Roedel Cc: Paul Gortmaker Cc: Greg Kroah-Hartman Cc: xen-devel@lists.xenproject.org Cc: Benjamin Herrenschmidt Cc: Grant Likely Cc: Rafael J. Wysocki Cc: Bjorn Helgaas Cc: Randy Dunlap Cc: Yinghai Lu Cc: Len Brown Cc: Pavel Machek Cc: Konrad Rzeszutek Wilk Cc: Rob Herring Cc: Michal Simek Cc: Tony Lindgren Acked-by: David Vrabel Link: http://lkml.kernel.org/r/1402302011-23642-20-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner --- arch/x86/kernel/devicetree.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'arch/x86/kernel/devicetree.c') diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c index 7db54b5d5f8..b4680058db8 100644 --- a/arch/x86/kernel/devicetree.c +++ b/arch/x86/kernel/devicetree.c @@ -21,6 +21,7 @@ #include #include #include +#include __initdata u64 initial_dtb; char __initdata cmd_line[COMMAND_LINE_SIZE]; @@ -314,7 +315,7 @@ static void dt_add_ioapic_domain(unsigned int ioapic_num, struct irq_domain *id; struct mp_ioapic_gsi *gsi_cfg; int ret; - int num; + int num, legacy_irqs = nr_legacy_irqs(); gsi_cfg = mp_ioapic_gsi_routing(ioapic_num); num = gsi_cfg->gsi_end - gsi_cfg->gsi_base + 1; @@ -324,17 +325,17 @@ static void dt_add_ioapic_domain(unsigned int ioapic_num, BUG_ON(!id); if (gsi_cfg->gsi_base == 0) { /* - * The first NR_IRQS_LEGACY irq descs are allocated in + * The first nr_legacy_irqs() irq descs are allocated in * early_irq_init() and need just a mapping. The * remaining irqs need both. All of them are preallocated * and assigned so we can keep the 1:1 mapping which the ioapic * is having. */ - irq_domain_associate_many(id, 0, 0, NR_IRQS_LEGACY); + irq_domain_associate_many(id, 0, 0, legacy_irqs); - if (num > NR_IRQS_LEGACY) { - ret = irq_create_strict_mappings(id, NR_IRQS_LEGACY, - NR_IRQS_LEGACY, num - NR_IRQS_LEGACY); + if (num > legacy_irqs) { + ret = irq_create_strict_mappings(id, legacy_irqs, + legacy_irqs, num - legacy_irqs); if (ret) pr_err("Error creating mapping for the " "remaining IRQs: %d\n", ret); -- cgit v1.2.3-70-g09d2 From 44767bfaaed782d6d635ecbb13f3980041e6f33e Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Mon, 9 Jun 2014 16:19:53 +0800 Subject: x86, irq: Enhance mp_register_ioapic() to support irqdomain Enhance function mp_register_ioapic() to support irqdomain. When registering IOAPIC, caller may provide callbacks and parameters for creating irqdomain. The IOAPIC core will create irqdomain later if caller has passed in corresponding parameters. Signed-off-by: Jiang Liu Cc: Konrad Rzeszutek Wilk Cc: Tony Luck Cc: Joerg Roedel Cc: Paul Gortmaker Cc: Greg Kroah-Hartman Cc: sfi-devel@simplefirmware.org Cc: Benjamin Herrenschmidt Cc: Grant Likely Cc: Rafael J. Wysocki Cc: Bjorn Helgaas Cc: Randy Dunlap Cc: Yinghai Lu Cc: Len Brown Cc: Pavel Machek Cc: Rob Herring Cc: Michal Simek Cc: Tony Lindgren Link: http://lkml.kernel.org/r/1402302011-23642-25-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner --- arch/x86/include/asm/io_apic.h | 3 ++- arch/x86/kernel/acpi/boot.c | 2 +- arch/x86/kernel/apic/io_apic.c | 42 +++++++++++++++++++++++++++++++++++++++++- arch/x86/kernel/devicetree.c | 2 +- arch/x86/kernel/mpparse.c | 2 +- arch/x86/platform/sfi/sfi.c | 2 +- 6 files changed, 47 insertions(+), 6 deletions(-) (limited to 'arch/x86/kernel/devicetree.c') diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h index 64c6e344399..3e4bea3a52b 100644 --- a/arch/x86/include/asm/io_apic.h +++ b/arch/x86/include/asm/io_apic.h @@ -190,7 +190,8 @@ extern int mp_find_ioapic(u32 gsi); extern int mp_find_ioapic_pin(int ioapic, u32 gsi); extern u32 mp_pin_to_gsi(int ioapic, int pin); extern int mp_map_gsi_to_irq(u32 gsi, unsigned int flags); -extern void __init mp_register_ioapic(int id, u32 address, u32 gsi_base); +extern void __init mp_register_ioapic(int id, u32 address, u32 gsi_base, + struct ioapic_domain_cfg *cfg); extern void __init pre_init_apic_IRQ0(void); extern void mp_save_irq(struct mpc_intsrc *m); diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index d6635baf9e3..f86b4bae464 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -462,7 +462,7 @@ acpi_parse_ioapic(struct acpi_subtable_header * header, const unsigned long end) acpi_table_print_madt_entry(header); mp_register_ioapic(ioapic->id, - ioapic->address, ioapic->global_irq_base); + ioapic->address, ioapic->global_irq_base, NULL); return 0; } diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index 51ce80004a7..563f4504f54 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -85,6 +85,7 @@ int sis_apic_bug = -1; static DEFINE_RAW_SPINLOCK(ioapic_lock); static DEFINE_RAW_SPINLOCK(vector_lock); static DEFINE_MUTEX(ioapic_mutex); +static unsigned int ioapic_dynirq_base; static struct ioapic { /* @@ -2920,8 +2921,35 @@ out: */ #define PIC_IRQS (1UL << PIC_CASCADE_IR) +static int mp_irqdomain_create(int ioapic) +{ + int hwirqs = mp_ioapic_pin_count(ioapic); + struct ioapic *ip = &ioapics[ioapic]; + struct ioapic_domain_cfg *cfg = &ip->irqdomain_cfg; + struct mp_ioapic_gsi *gsi_cfg = mp_ioapic_gsi_routing(ioapic); + + if (cfg->type == IOAPIC_DOMAIN_INVALID) + return 0; + + ip->irqdomain = irq_domain_add_linear(cfg->dev, hwirqs, cfg->ops, + (void *)(long)ioapic); + if(!ip->irqdomain) + return -ENOMEM; + + if (cfg->type == IOAPIC_DOMAIN_LEGACY || + cfg->type == IOAPIC_DOMAIN_STRICT) + ioapic_dynirq_base = max(ioapic_dynirq_base, + gsi_cfg->gsi_end + 1); + + if (gsi_cfg->gsi_base == 0) + irq_set_default_host(ip->irqdomain); + + return 0; +} + void __init setup_IO_APIC(void) { + int ioapic; /* * calling enable_IO_APIC() is moved to setup_local_APIC for BP @@ -2929,6 +2957,9 @@ void __init setup_IO_APIC(void) io_apic_irqs = nr_legacy_irqs() ? ~PIC_IRQS : ~0UL; apic_printk(APIC_VERBOSE, "ENABLING IO-APIC IRQs\n"); + for_each_ioapic(ioapic) + BUG_ON(mp_irqdomain_create(ioapic)); + /* * Set up IO-APIC IRQ routing. */ @@ -3437,6 +3468,9 @@ unsigned int arch_dynirq_lower_bound(unsigned int from) { unsigned int min = gsi_top + nr_legacy_irqs(); + if (ioapic_dynirq_base) + return ioapic_dynirq_base; + return from < min ? min : from; } @@ -3812,7 +3846,8 @@ static __init int bad_ioapic_register(int idx) return 0; } -void __init mp_register_ioapic(int id, u32 address, u32 gsi_base) +void __init mp_register_ioapic(int id, u32 address, u32 gsi_base, + struct ioapic_domain_cfg *cfg) { int idx = 0; int entries; @@ -3826,6 +3861,11 @@ void __init mp_register_ioapic(int id, u32 address, u32 gsi_base) ioapics[idx].mp_config.type = MP_IOAPIC; ioapics[idx].mp_config.flags = MPC_APIC_USABLE; ioapics[idx].mp_config.apicaddr = address; + ioapics[idx].irqdomain = NULL; + if (cfg) + ioapics[idx].irqdomain_cfg = *cfg; + else + ioapics[idx].irqdomain_cfg.type = IOAPIC_DOMAIN_INVALID; set_fixmap_nocache(FIX_IO_APIC_BASE_0 + idx, address); diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c index b4680058db8..d2c53feacd7 100644 --- a/arch/x86/kernel/devicetree.c +++ b/arch/x86/kernel/devicetree.c @@ -177,7 +177,7 @@ static void __init dtb_add_ioapic(struct device_node *dn) dn->full_name); return; } - mp_register_ioapic(++ioapic_id, r.start, gsi_top); + mp_register_ioapic(++ioapic_id, r.start, gsi_top, NULL); } static void __init dtb_ioapic_setup(void) diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c index b10e1132f31..ea8595e4cbd 100644 --- a/arch/x86/kernel/mpparse.c +++ b/arch/x86/kernel/mpparse.c @@ -115,7 +115,7 @@ static void __init MP_bus_info(struct mpc_bus *m) static void __init MP_ioapic_info(struct mpc_ioapic *m) { if (m->flags & MPC_APIC_USABLE) - mp_register_ioapic(m->apicid, m->apicaddr, gsi_top); + mp_register_ioapic(m->apicid, m->apicaddr, gsi_top, NULL); } static void __init print_mp_irq_info(struct mpc_intsrc *mp_irq) diff --git a/arch/x86/platform/sfi/sfi.c b/arch/x86/platform/sfi/sfi.c index bcd1a703e3e..8f2f789c6f0 100644 --- a/arch/x86/platform/sfi/sfi.c +++ b/arch/x86/platform/sfi/sfi.c @@ -82,7 +82,7 @@ static int __init sfi_parse_ioapic(struct sfi_table_header *table) pentry = (struct sfi_apic_table_entry *)sb->pentry; for (i = 0; i < num; i++) { - mp_register_ioapic(i, pentry->phys_addr, gsi_top); + mp_register_ioapic(i, pentry->phys_addr, gsi_top, NULL); pentry++; } -- cgit v1.2.3-70-g09d2 From facd8fdb25fc4d041a283446cfb040cbfe2c3723 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Mon, 9 Jun 2014 16:19:57 +0800 Subject: x86, devicetree, irq: Use common mechanism to support irqdomain Now the ioapic driver provides a common interface to create irqdomain, so replace the private implementation. Signed-off-by: Jiang Liu Cc: Konrad Rzeszutek Wilk Cc: Tony Luck Cc: Joerg Roedel Cc: Paul Gortmaker Cc: Greg Kroah-Hartman Cc: Benjamin Herrenschmidt Cc: Grant Likely Cc: Rafael J. Wysocki Cc: Bjorn Helgaas Cc: Randy Dunlap Cc: Yinghai Lu Cc: Rob Herring Cc: Michal Simek Cc: Tony Lindgren Link: http://lkml.kernel.org/r/1402302011-23642-29-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner --- arch/x86/include/asm/prom.h | 2 - arch/x86/kernel/devicetree.c | 191 +++++++++++++------------------------------ arch/x86/kernel/irqinit.c | 6 -- 3 files changed, 59 insertions(+), 140 deletions(-) (limited to 'arch/x86/kernel/devicetree.c') diff --git a/arch/x86/include/asm/prom.h b/arch/x86/include/asm/prom.h index fbeb06ed0ea..1d081ac1cd6 100644 --- a/arch/x86/include/asm/prom.h +++ b/arch/x86/include/asm/prom.h @@ -26,12 +26,10 @@ extern int of_ioapic; extern u64 initial_dtb; extern void add_dtb(u64 data); -extern void x86_add_irq_domains(void); void x86_of_pci_init(void); void x86_dtb_init(void); #else static inline void add_dtb(u64 data) { } -static inline void x86_add_irq_domains(void) { } static inline void x86_of_pci_init(void) { } static inline void x86_dtb_init(void) { } #define of_ioapic 0 diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c index d2c53feacd7..ee26feca93d 100644 --- a/arch/x86/kernel/devicetree.c +++ b/arch/x86/kernel/devicetree.c @@ -166,82 +166,6 @@ static void __init dtb_lapic_setup(void) #ifdef CONFIG_X86_IO_APIC static unsigned int ioapic_id; -static void __init dtb_add_ioapic(struct device_node *dn) -{ - struct resource r; - int ret; - - ret = of_address_to_resource(dn, 0, &r); - if (ret) { - printk(KERN_ERR "Can't obtain address from node %s.\n", - dn->full_name); - return; - } - mp_register_ioapic(++ioapic_id, r.start, gsi_top, NULL); -} - -static void __init dtb_ioapic_setup(void) -{ - struct device_node *dn; - - for_each_compatible_node(dn, NULL, "intel,ce4100-ioapic") - dtb_add_ioapic(dn); - - if (nr_ioapics) { - of_ioapic = 1; - return; - } - printk(KERN_ERR "Error: No information about IO-APIC in OF.\n"); -} -#else -static void __init dtb_ioapic_setup(void) {} -#endif - -static void __init dtb_apic_setup(void) -{ - dtb_lapic_setup(); - dtb_ioapic_setup(); -} - -#ifdef CONFIG_OF_FLATTREE -static void __init x86_flattree_get_config(void) -{ - u32 size, map_len; - void *dt; - - if (!initial_dtb) - return; - - map_len = max(PAGE_SIZE - (initial_dtb & ~PAGE_MASK), (u64)128); - - initial_boot_params = dt = early_memremap(initial_dtb, map_len); - size = of_get_flat_dt_size(); - if (map_len < size) { - early_iounmap(dt, map_len); - initial_boot_params = dt = early_memremap(initial_dtb, size); - map_len = size; - } - - unflatten_and_copy_device_tree(); - early_iounmap(dt, map_len); -} -#else -static inline void x86_flattree_get_config(void) { } -#endif - -void __init x86_dtb_init(void) -{ - x86_flattree_get_config(); - - if (!of_have_populated_dt()) - return; - - dtb_setup_hpet(); - dtb_apic_setup(); -} - -#ifdef CONFIG_X86_IO_APIC - struct of_ioapic_type { u32 out_type; u32 trigger; @@ -292,7 +216,7 @@ static int ioapic_xlate(struct irq_domain *domain, it = &of_ioapic_type[intspec[1]]; - idx = (u32) domain->host_data; + idx = (u32)(long)domain->host_data; set_io_apic_irq_attr(&attr, idx, line, it->trigger, it->polarity); rc = io_apic_setup_irq_pin_once(irq_find_mapping(domain, line), @@ -309,78 +233,81 @@ const struct irq_domain_ops ioapic_irq_domain_ops = { .xlate = ioapic_xlate, }; -static void dt_add_ioapic_domain(unsigned int ioapic_num, - struct device_node *np) +static void __init dtb_add_ioapic(struct device_node *dn) { - struct irq_domain *id; - struct mp_ioapic_gsi *gsi_cfg; + struct resource r; int ret; - int num, legacy_irqs = nr_legacy_irqs(); - - gsi_cfg = mp_ioapic_gsi_routing(ioapic_num); - num = gsi_cfg->gsi_end - gsi_cfg->gsi_base + 1; - - id = irq_domain_add_linear(np, num, &ioapic_irq_domain_ops, - (void *)ioapic_num); - BUG_ON(!id); - if (gsi_cfg->gsi_base == 0) { - /* - * The first nr_legacy_irqs() irq descs are allocated in - * early_irq_init() and need just a mapping. The - * remaining irqs need both. All of them are preallocated - * and assigned so we can keep the 1:1 mapping which the ioapic - * is having. - */ - irq_domain_associate_many(id, 0, 0, legacy_irqs); - - if (num > legacy_irqs) { - ret = irq_create_strict_mappings(id, legacy_irqs, - legacy_irqs, num - legacy_irqs); - if (ret) - pr_err("Error creating mapping for the " - "remaining IRQs: %d\n", ret); - } - irq_set_default_host(id); - } else { - ret = irq_create_strict_mappings(id, gsi_cfg->gsi_base, 0, num); - if (ret) - pr_err("Error creating IRQ mapping: %d\n", ret); + struct ioapic_domain_cfg cfg = { + .type = IOAPIC_DOMAIN_DYNAMIC, + .ops = &ioapic_irq_domain_ops, + .dev = dn, + }; + + ret = of_address_to_resource(dn, 0, &r); + if (ret) { + printk(KERN_ERR "Can't obtain address from node %s.\n", + dn->full_name); + return; } + mp_register_ioapic(++ioapic_id, r.start, gsi_top, &cfg); } -static void __init ioapic_add_ofnode(struct device_node *np) +static void __init dtb_ioapic_setup(void) { - struct resource r; - int i, ret; + struct device_node *dn; - ret = of_address_to_resource(np, 0, &r); - if (ret) { - printk(KERN_ERR "Failed to obtain address for %s\n", - np->full_name); + for_each_compatible_node(dn, NULL, "intel,ce4100-ioapic") + dtb_add_ioapic(dn); + + if (nr_ioapics) { + of_ioapic = 1; return; } + printk(KERN_ERR "Error: No information about IO-APIC in OF.\n"); +} +#else +static void __init dtb_ioapic_setup(void) {} +#endif - for (i = 0; i < nr_ioapics; i++) { - if (r.start == mpc_ioapic_addr(i)) { - dt_add_ioapic_domain(i, np); - return; - } - } - printk(KERN_ERR "IOxAPIC at %s is not registered.\n", np->full_name); +static void __init dtb_apic_setup(void) +{ + dtb_lapic_setup(); + dtb_ioapic_setup(); } -void __init x86_add_irq_domains(void) +#ifdef CONFIG_OF_FLATTREE +static void __init x86_flattree_get_config(void) { - struct device_node *dp; + u32 size, map_len; + void *dt; - if (!of_have_populated_dt()) + if (!initial_dtb) return; - for_each_node_with_property(dp, "interrupt-controller") { - if (of_device_is_compatible(dp, "intel,ce4100-ioapic")) - ioapic_add_ofnode(dp); + map_len = max(PAGE_SIZE - (initial_dtb & ~PAGE_MASK), (u64)128); + + initial_boot_params = dt = early_memremap(initial_dtb, map_len); + size = of_get_flat_dt_size(); + if (map_len < size) { + early_iounmap(dt, map_len); + initial_boot_params = dt = early_memremap(initial_dtb, size); + map_len = size; } + + unflatten_and_copy_device_tree(); + early_iounmap(dt, map_len); } #else -void __init x86_add_irq_domains(void) { } +static inline void x86_flattree_get_config(void) { } #endif + +void __init x86_dtb_init(void) +{ + x86_flattree_get_config(); + + if (!of_have_populated_dt()) + return; + + dtb_setup_hpet(); + dtb_apic_setup(); +} diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c index a0111e91eb4..1e6cff5814f 100644 --- a/arch/x86/kernel/irqinit.c +++ b/arch/x86/kernel/irqinit.c @@ -86,12 +86,6 @@ void __init init_IRQ(void) { int i; - /* - * We probably need a better place for this, but it works for - * now ... - */ - x86_add_irq_domains(); - /* * On cpu 0, Assign IRQ0_VECTOR..IRQ15_VECTOR's to IRQ 0..15. * If these IRQ's are handled by legacy interrupt-controllers like PIC, -- cgit v1.2.3-70-g09d2 From 795aacf63fee1bfe8b68fd5db4882576c5c0c570 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Mon, 9 Jun 2014 16:20:02 +0800 Subject: x86, irq, devicetree: Use common irqdomain map interface to program IOAPIC pins Refine devicetree to use common irqdomain map interface to program IOAPIC pins, so we can unify the callsite to progam IOAPIC pins. Signed-off-by: Jiang Liu Cc: Konrad Rzeszutek Wilk Cc: Tony Luck Cc: Joerg Roedel Cc: Paul Gortmaker Cc: Greg Kroah-Hartman Cc: Benjamin Herrenschmidt Cc: Grant Likely Cc: Rafael J. Wysocki Cc: Bjorn Helgaas Cc: Randy Dunlap Cc: Yinghai Lu Cc: Rob Herring Cc: Michal Simek Cc: Tony Lindgren Link: http://lkml.kernel.org/r/1402302011-23642-34-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner --- arch/x86/kernel/devicetree.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) (limited to 'arch/x86/kernel/devicetree.c') diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c index ee26feca93d..f33bb436b8f 100644 --- a/arch/x86/kernel/devicetree.c +++ b/arch/x86/kernel/devicetree.c @@ -201,10 +201,8 @@ static int ioapic_xlate(struct irq_domain *domain, const u32 *intspec, u32 intsize, irq_hw_number_t *out_hwirq, u32 *out_type) { - struct io_apic_irq_attr attr; struct of_ioapic_type *it; - u32 line, idx; - int rc; + u32 line, idx, gsi; if (WARN_ON(intsize < 2)) return -EINVAL; @@ -217,12 +215,9 @@ static int ioapic_xlate(struct irq_domain *domain, it = &of_ioapic_type[intspec[1]]; idx = (u32)(long)domain->host_data; - set_io_apic_irq_attr(&attr, idx, line, it->trigger, it->polarity); - - rc = io_apic_setup_irq_pin_once(irq_find_mapping(domain, line), - cpu_to_node(0), &attr); - if (rc) - return rc; + gsi = mp_pin_to_gsi(idx, line); + if (mp_set_gsi_attr(gsi, it->trigger, it->polarity, cpu_to_node(0))) + return -EBUSY; *out_hwirq = line; *out_type = it->out_type; @@ -230,6 +225,7 @@ static int ioapic_xlate(struct irq_domain *domain, } const struct irq_domain_ops ioapic_irq_domain_ops = { + .map = mp_irqdomain_map, .xlate = ioapic_xlate, }; -- cgit v1.2.3-70-g09d2 From 00f49c29b3298806c74589a4ed016a2afb359e98 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Mon, 9 Jun 2014 16:20:10 +0800 Subject: x86, irq, devicetree: Release IOAPIC pin when PCI device is disabled Release IOAPIC pin associated with PCI device when the PCI device is disabled. Signed-off-by: Jiang Liu Cc: Konrad Rzeszutek Wilk Cc: Tony Luck Cc: Joerg Roedel Cc: Paul Gortmaker Cc: Greg Kroah-Hartman Cc: Benjamin Herrenschmidt Cc: Grant Likely Cc: Rafael J. Wysocki Cc: Bjorn Helgaas Cc: Randy Dunlap Cc: Yinghai Lu Cc: Rob Herring Cc: Michal Simek Cc: Tony Lindgren Link: http://lkml.kernel.org/r/1402302011-23642-42-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner --- arch/x86/kernel/devicetree.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/x86/kernel/devicetree.c') diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c index f33bb436b8f..3d350335124 100644 --- a/arch/x86/kernel/devicetree.c +++ b/arch/x86/kernel/devicetree.c @@ -226,6 +226,7 @@ static int ioapic_xlate(struct irq_domain *domain, const struct irq_domain_ops ioapic_irq_domain_ops = { .map = mp_irqdomain_map, + .unmap = mp_irqdomain_unmap, .xlate = ioapic_xlate, }; -- cgit v1.2.3-70-g09d2