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Commit 74501edc authored by Jiang Liu's avatar Jiang Liu Committed by Thomas Gleixner
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x86, mpparse, irq: Provide basic irqdomain support 



Enhance mpparse to provide basic support of irqdomain.

Signed-off-by: default avatarJiang 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: default avatarThomas Gleixner <tglx@linutronix.de>
parent ca7e28aa

arch/x86/kernel/mpparse.c

+9 −1
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ 
#include <linux/module.h>

#include <linux/smp.h>

#include <linux/pci.h>

#include <linux/irqdomain.h>



#include <asm/mtrr.h>

#include <asm/mpspec.h>
@@ -112,10 +113,17 @@ static void __init MP_bus_info(struct mpc_bus *m) 
		pr_warn("Unknown bustype %s - ignoring\n", str);

}



static struct irq_domain_ops mp_ioapic_irqdomain_ops;



static void __init MP_ioapic_info(struct mpc_ioapic *m)

{

	struct ioapic_domain_cfg cfg = {

		.type = IOAPIC_DOMAIN_LEGACY,

		.ops = &mp_ioapic_irqdomain_ops,

	};



	if (m->flags & MPC_APIC_USABLE)

		mp_register_ioapic(m->apicid, m->apicaddr, gsi_top, NULL);

		mp_register_ioapic(m->apicid, m->apicaddr, gsi_top, &cfg);

}



static void __init print_mp_irq_info(struct mpc_intsrc *mp_irq)