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| author | Jiang Liu <jiang.liu@linux.intel.com> | 2015-04-13 14:11:36 +0800 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-04-24 15:36:49 +0200 |
| commit | 80aa283364a17998dceb577bd185e3380b927544 (patch) | |
| tree | ff67e36f50be77343e601366e5655183a9df05b9 /arch/x86/kernel/apic/msi.c | |
| parent | 52f518a3a7c2f80551a38d38be28bc9f335e713c (diff) | |
| download | op-kernel-dev-80aa283364a17998dceb577bd185e3380b927544.zip op-kernel-dev-80aa283364a17998dceb577bd185e3380b927544.tar.gz | |
x86/irq: Directly call native_compose_msi_msg() for DMAR IRQ
DMAR interrupt won't be remapped by interrupt remapping hardware,
so directly call native_compose_msi_msg() for DMAR IRQ to compose MSI
message data. This will help to simplify MSI code later.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: David Cohen <david.a.cohen@linux.intel.com>
Cc: Sander Eikelenboom <linux@eikelenboom.it>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dimitri Sivanich <sivanich@sgi.com>
Link: http://lkml.kernel.org/r/1428905519-23704-15-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/apic/msi.c')
| -rw-r--r-- | arch/x86/kernel/apic/msi.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c index c426cd5..9adb871 100644 --- a/arch/x86/kernel/apic/msi.c +++ b/arch/x86/kernel/apic/msi.c @@ -259,12 +259,10 @@ static struct irq_chip dmar_msi_type = { int arch_setup_dmar_msi(unsigned int irq) { - int ret; struct msi_msg msg; + struct irq_cfg *cfg = irq_cfg(irq); - ret = msi_compose_msg(NULL, irq, &msg, -1); - if (ret < 0) - return ret; + native_compose_msi_msg(NULL, irq, cfg->dest_apicid, &msg, -1); dmar_msi_write(irq, &msg); irq_set_chip_and_handler_name(irq, &dmar_msi_type, handle_edge_irq, "edge"); |
