From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Jiang Liu To: Benjamin Herrenschmidt , Thomas Gleixner , Grant Likely , Ingo Molnar , "H. Peter Anvin" , "Rafael J. Wysocki" , Bjorn Helgaas , Randy Dunlap , Yinghai Lu , x86@kernel.org, Jiang Liu Cc: Konrad Rzeszutek Wilk , Andrew Morton , Tony Luck , Joerg Roedel , Paul Gortmaker , Greg Kroah-Hartman , linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org Subject: [Patch V3 22/37] x86, mpparse, irq: provide basic irqdomain support Date: Tue, 27 May 2014 16:07:57 +0800 Message-Id: <1401178092-1228-23-git-send-email-jiang.liu@linux.intel.com> In-Reply-To: <1401178092-1228-1-git-send-email-jiang.liu@linux.intel.com> References: <1401178092-1228-1-git-send-email-jiang.liu@linux.intel.com> Sender: linux-acpi-owner@vger.kernel.org List-ID: Enhance mpparse to provide basic support of irqdomain with identity mapping between GSIs and IRQs. Signed-off-by: Jiang Liu --- arch/x86/kernel/mpparse.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c index 6cb9a43ecde1..b9823bea332a 100644 --- a/arch/x86/kernel/mpparse.c +++ b/arch/x86/kernel/mpparse.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include @@ -112,10 +113,18 @@ 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 struct irq_domain *mp_ioapic_create_irqdomain(int ioapic, void *arg) +{ + return mp_irqdomain_create(ioapic, NULL, &mp_ioapic_irqdomain_ops); +} + 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, NULL, NULL); + mp_register_ioapic(m->apicid, m->apicaddr, gsi_top, + mp_ioapic_create_irqdomain, NULL); } static void __init print_mp_irq_info(struct mpc_intsrc *mp_irq) -- 1.7.10.4