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authorJiang Liu <jiang.liu@linux.intel.com>2014-06-09 04:19:55 -0400
committerThomas Gleixner <tglx@linutronix.de>2014-06-21 17:05:43 -0400
commit74501edcd846830bec86bfa06c47c25083e70ffc (patch)
treee5e72a82a7751fb31657acd28ddda147c99884c2
parentca7e28aa4ff34fdd6622d915682b2765453c5ddd (diff)
x86, mpparse, irq: Provide basic irqdomain support
Enhance mpparse to provide basic support of irqdomain. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Grant Likely <grant.likely@linaro.org> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Yinghai Lu <yinghai@kernel.org> Link: http://lkml.kernel.org/r/1402302011-23642-27-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r--arch/x86/kernel/mpparse.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index ea8595e4cbd5..13c8e1f864fc 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -19,6 +19,7 @@
19#include <linux/module.h> 19#include <linux/module.h>
20#include <linux/smp.h> 20#include <linux/smp.h>
21#include <linux/pci.h> 21#include <linux/pci.h>
22#include <linux/irqdomain.h>
22 23
23#include <asm/mtrr.h> 24#include <asm/mtrr.h>
24#include <asm/mpspec.h> 25#include <asm/mpspec.h>
@@ -112,10 +113,17 @@ static void __init MP_bus_info(struct mpc_bus *m)
112 pr_warn("Unknown bustype %s - ignoring\n", str); 113 pr_warn("Unknown bustype %s - ignoring\n", str);
113} 114}
114 115
116static struct irq_domain_ops mp_ioapic_irqdomain_ops;
117
115static void __init MP_ioapic_info(struct mpc_ioapic *m) 118static void __init MP_ioapic_info(struct mpc_ioapic *m)
116{ 119{
120 struct ioapic_domain_cfg cfg = {
121 .type = IOAPIC_DOMAIN_LEGACY,
122 .ops = &mp_ioapic_irqdomain_ops,
123 };
124
117 if (m->flags & MPC_APIC_USABLE) 125 if (m->flags & MPC_APIC_USABLE)
118 mp_register_ioapic(m->apicid, m->apicaddr, gsi_top, NULL); 126 mp_register_ioapic(m->apicid, m->apicaddr, gsi_top, &cfg);
119} 127}
120 128
121static void __init print_mp_irq_info(struct mpc_intsrc *mp_irq) 129static void __init print_mp_irq_info(struct mpc_intsrc *mp_irq)