From: Bharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>
To: <linux-pci@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: <bhelgaas@google.com>, <rgummal@xilinx.com>,
Bharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>
Subject: [PATCH 2/4] PCI: Add pci_check_platform_service_irqs
Date: Fri, 10 Aug 2018 21:09:38 +0530 [thread overview]
Message-ID: <1533915580-31805-3-git-send-email-bharat.kumar.gogada@xilinx.com> (raw)
In-Reply-To: <1533915580-31805-1-git-send-email-bharat.kumar.gogada@xilinx.com>
Adding method pci_check_platform_service_irqs to check if platform
has registered method to proivde dedicated IRQ lines for PCIe services
like AER/PME etc.
Signed-off-by: Bharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>
---
include/linux/pci.h | 24 ++++++++++++++++++++++++
1 files changed, 24 insertions(+), 0 deletions(-)
diff --git a/include/linux/pci.h b/include/linux/pci.h
index c28f575..8eb6470 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -2271,6 +2271,30 @@ static inline bool pci_ari_enabled(struct pci_bus *bus)
}
/**
+ * pci_check_platform_service_irqs - check platform service irq's
+ * @pdev: PCI Express device to check
+ * @irqs: Array of irqs to populate
+ * @mask: Bitmask of capabilities
+ *
+ * Return value: Bitmask after clearing platform supported service
+ * bits
+ */
+static inline int pci_check_platform_service_irqs(struct pci_dev *dev,
+ int *irqs, int mask)
+{
+ struct pci_host_bridge *bridge;
+
+ if (pci_pcie_type(dev) != PCI_EXP_TYPE_ROOT_PORT)
+ return -EINVAL;
+
+ bridge = pci_find_host_bridge(dev->bus);
+ if (bridge && bridge->setup_platform_service_irq)
+ return bridge->setup_platform_service_irq(bridge, irqs, mask);
+ else
+ return -EINVAL;
+}
+
+/**
* pci_is_thunderbolt_attached - whether device is on a Thunderbolt daisy chain
* @pdev: PCI device to check
*
--
1.7.1
next prev parent reply other threads:[~2018-08-10 15:45 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-10 15:39 [PATCH 0/4] Add support to register platform service IRQ Bharat Kumar Gogada
2018-08-10 15:39 ` [PATCH 1/4] PCI: Add setup_platform_service_irq hook to struct pci_host_bridge Bharat Kumar Gogada
2018-08-10 15:39 ` Bharat Kumar Gogada [this message]
2018-08-10 15:39 ` [PATCH 3/4] PCI/portdrv: Check platform supported service IRQ's Bharat Kumar Gogada
2018-09-04 14:12 ` Bjorn Helgaas
2018-09-06 15:34 ` Bharat Kumar Gogada
2018-08-10 15:39 ` [PATCH 4/4] PCI: xilinx-nwl: Add method to setup_platform_service_irq hook Bharat Kumar Gogada
2018-08-13 9:09 ` kbuild test robot
2018-08-14 15:55 ` Bharat Kumar Gogada
2018-08-13 9:09 ` [RFC PATCH] PCI: xilinx-nwl: nwl_setup_service_irqs() can be static kbuild test robot
2018-09-04 13:48 ` [PATCH 4/4] PCI: xilinx-nwl: Add method to setup_platform_service_irq hook Bjorn Helgaas
2018-09-06 15:27 ` Bharat Kumar Gogada
2018-08-24 12:16 ` [PATCH 0/4] Add support to register platform service IRQ Bharat Kumar Gogada
2018-08-24 16:12 ` Bjorn Helgaas
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