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From: Jon Derrick <jonathan.derrick@intel.com>
To: <linux-pci@vger.kernel.org>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
	Bjorn Helgaas <helgaas@kernel.org>,
	Andrzej Jakowski <andrzej.jakowski@linux.intel.com>,
	Dave Fugate <david.fugate@intel.com>,
	Jon Derrick <jonathan.derrick@intel.com>
Subject: [PATCH 3/3] PCI: vmd: Wire up VMD for fallback resource assignment
Date: Sun, 27 Sep 2020 21:06:09 -0400	[thread overview]
Message-ID: <20200928010609.5375-4-jonathan.derrick@intel.com> (raw)
In-Reply-To: <20200928010609.5375-1-jonathan.derrick@intel.com>

The VMD subdevice domain would prefer all devices be assigned resources
and working rather than a few or none assigned, but with valid hotplug
bridge resources. The resource assignment fallback algorithm works best
for these requirements.

Signed-off-by: Jon Derrick <jonathan.derrick@intel.com>
---
 drivers/pci/controller/vmd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/vmd.c b/drivers/pci/controller/vmd.c
index fdc1a206f73e..4debc547c813 100644
--- a/drivers/pci/controller/vmd.c
+++ b/drivers/pci/controller/vmd.c
@@ -777,7 +777,7 @@ static int vmd_enable_domain(struct vmd_dev *vmd, unsigned long features)
 		dev_set_msi_domain(&vmd->bus->dev, vmd->irq_domain);
 
 	pci_scan_child_bus(vmd->bus);
-	pci_assign_unassigned_bus_resources(vmd->bus);
+	pci_bus_assign_resources_fallback_sizing(vmd->bus);
 
 	/*
 	 * VMD root buses are virtual and don't return true on pci_is_pcie()
-- 
2.18.1


  parent reply	other threads:[~2020-09-28  1:26 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-28  1:06 [PATCH 0/3] PCI: Minimizing resource assignment algorithm Jon Derrick
2020-09-28  1:06 ` [PATCH 1/3] PCI: Create helper to release/restore bridge resources Jon Derrick
2020-09-28  1:06 ` [PATCH 2/3] PCI: Introduce a minimizing assignment algorithm Jon Derrick
2020-09-28  7:17   ` Christoph Hellwig
2020-09-28 13:34     ` Derrick, Jonathan
2020-09-29 17:48       ` hch
2020-09-28  1:06 ` Jon Derrick [this message]
2020-09-28  7:16 ` [PATCH 0/3] PCI: Minimizing resource " Christoph Hellwig

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