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From: christophe lombard <clombard@linux.vnet.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, fbarrat@linux.vnet.ibm.com,
	ajd@linux.ibm.com, groug@kaod.org
Subject: [PATCH 3/3] powerpc/pseries: Fixup config space size of OpenCAPI devices
Date: Tue, 22 Oct 2019 09:52:47 +0200
Message-ID: <20191022075247.16266-4-clombard@linux.vnet.ibm.com> (raw)
In-Reply-To: <20191022075247.16266-1-clombard@linux.vnet.ibm.com>

Fix up the pci config size of the OpenCAPI PCIe devices in the pseries
environment.
Most of OpenCAPI PCIe devices have 4096 bytes of configuration space.

Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com>
---
 arch/powerpc/platforms/pseries/pci.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c
index 1eae1d09980c..3397784767b0 100644
--- a/arch/powerpc/platforms/pseries/pci.c
+++ b/arch/powerpc/platforms/pseries/pci.c
@@ -291,6 +291,15 @@ static void fixup_winbond_82c105(struct pci_dev* dev)
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105,
 			 fixup_winbond_82c105);
 
+static void fixup_opencapi_cfg_size(struct pci_dev *pdev)
+{
+	if (!machine_is(pseries))
+		return;
+
+	pdev->cfg_size = PCI_CFG_SPACE_EXP_SIZE;
+}
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_IBM, 0x062b, fixup_opencapi_cfg_size);
+
 int pseries_root_bridge_prepare(struct pci_host_bridge *bridge)
 {
 	struct device_node *dn, *pdn;
-- 
2.21.0


  parent reply index

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-22  7:52 [PATCH 0/3] ocxl: Support for an 0penCAPI device in a QEMU guest christophe lombard
2019-10-22  7:52 ` [PATCH 1/3] ocxl: Introduce implementation-specific API christophe lombard
2019-10-22  7:52 ` [PATCH 2/3] ocxl: Add pseries-specific code christophe lombard
2019-10-28 14:40   ` christophe lombard
2019-10-22  7:52 ` christophe lombard [this message]
2019-11-05  5:01   ` [PATCH 3/3] powerpc/pseries: Fixup config space size of OpenCAPI devices Andrew Donnellan
2019-11-07  8:46     ` christophe lombard
2019-11-09 13:07       ` Greg Kurz

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