linux-kernel - [RFC PATCH v3 4/5] powerpc/powernv/pci-ioda: Enable msi

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Date:	Fri, 15 Jan 2016 15:06:13 +0800
From:	Yongji Xie <xyjxie@...ux.vnet.ibm.com>
To:	kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	linux-doc@...r.kernel.org
Cc:	bhelgaas@...gle.com, corbet@....net, aik@...abs.ru,
	alex.williamson@...hat.com, benh@...nel.crashing.org,
	paulus@...ba.org, mpe@...erman.id.au, warrier@...ux.vnet.ibm.com,
	zhong@...ux.vnet.ibm.com, nikunj@...ux.vnet.ibm.com,
	Yongji Xie <xyjxie@...ux.vnet.ibm.com>
Subject: [RFC PATCH v3 4/5] powerpc/powernv/pci-ioda: Enable msi_filtered bit for any IODA host bridge

This patch enables msi_filtered bit for any IODA host bridge.

Signed-off-by: Yongji Xie <xyjxie@...ux.vnet.ibm.com>
---
 arch/powerpc/platforms/powernv/pci-ioda.c |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 414fd1a..689f0dc 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -2934,6 +2934,11 @@ static void pnv_pci_ioda_fixup(void)
 #endif
 }
 
+static void pnv_pci_ioda_fixup_phb(struct pci_controller *hose)
+{
+	to_pci_host_bridge(hose->bus->bridge)->msi_filtered = 1;
+}
+
 /*
  * Returns the alignment for I/O or memory windows for P2P
  * bridges. That actually depends on how PEs are segmented.
@@ -3201,6 +3206,7 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
 	 * the child P2P bridges) can form individual PE.
 	 */
 	ppc_md.pcibios_fixup = pnv_pci_ioda_fixup;
+	ppc_md.pcibios_fixup_phb = pnv_pci_ioda_fixup_phb;
 	hose->controller_ops = pnv_pci_ioda_controller_ops;
 
 #ifdef CONFIG_PCI_IOV
-- 
1.7.9.5