From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from metis.ext.pengutronix.de ([92.198.50.35]:53263 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751702AbbCIRdQ (ORCPT ); Mon, 9 Mar 2015 13:33:16 -0400 From: Lucas Stach To: Bjorn Helgaas Cc: Jingoo Han , Mohit Kumar , linux-pci@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 1/2] PCI: allow MSI chip providers to implement their own multiple MSI setup Date: Mon, 9 Mar 2015 18:33:07 +0100 Message-Id: <1425922388-30464-1-git-send-email-l.stach@pengutronix.de> Sender: linux-pci-owner@vger.kernel.org List-ID: Signed-off-by: Lucas Stach --- drivers/pci/msi.c | 3 +++ include/linux/msi.h | 2 ++ 2 files changed, 5 insertions(+) diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index c3e7dfcf9ff5..9feb618d8881 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -121,9 +121,12 @@ void __weak arch_teardown_msi_irq(unsigned int irq) int __weak arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) { + struct msi_controller *chip = pci_msi_controller(dev); struct msi_desc *entry; int ret; + if (chip && chip->setup_irqs) + return chip->setup_irqs(chip, dev, nvec, type); /* * If an architecture wants to support multiple MSI, it needs to * override arch_setup_msi_irqs() diff --git a/include/linux/msi.h b/include/linux/msi.h index 8ac4a68ffae2..50fefeb30236 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -114,6 +114,8 @@ struct msi_controller { int (*setup_irq)(struct msi_controller *chip, struct pci_dev *dev, struct msi_desc *desc); + int (*setup_irqs)(struct msi_controller *chip, struct pci_dev *dev, + int nvec, int type); void (*teardown_irq)(struct msi_controller *chip, unsigned int irq); }; -- 2.1.4