From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: linuxppc-dev@ozlabs.org
Subject: [PATCH 03/21] powerpc/pci: Call pcie_bus_configure_settings()
Date: Sat, 10 Sep 2011 11:19:50 -0300 [thread overview]
Message-ID: <1315664408-16797-3-git-send-email-benh@kernel.crashing.org> (raw)
In-Reply-To: <1315664408-16797-1-git-send-email-benh@kernel.crashing.org>
This new function is used to properly setup the PCI Express Max Payload Size
(and in some circumstances Max Read Request Size).
Some systems will not operate properly if these aren't set correctly and
the firmware doesn't always do it.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
arch/powerpc/kernel/pci-common.c | 11 +++++++++++
1 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 32656f1..1bd47f3 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1730,6 +1730,17 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose)
if (mode == PCI_PROBE_NORMAL)
hose->last_busno = bus->subordinate = pci_scan_child_bus(bus);
+
+ /* Configure PCI Express settings */
+ if (bus) {
+ struct pci_bus *child;
+ list_for_each_entry(child, &bus->children, node) {
+ struct pci_dev *self = child->self;
+ if (!self)
+ continue;
+ pcie_bus_configure_settings(child, self->pcie_mpss);
+ }
+ }
}
static void fixup_hide_host_resource_fsl(struct pci_dev *dev)
--
1.7.4.1
next prev parent reply other threads:[~2011-09-10 14:20 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-10 14:19 [PATCH 01/21] powerpc/udbg: Fix Kconfig entry for avoiding 44x early debug with KVM Benjamin Herrenschmidt
2011-09-10 14:19 ` [PATCH 02/21] powerpc/smp: More generic support for "soft hotplug" Benjamin Herrenschmidt
2011-09-10 14:19 ` Benjamin Herrenschmidt [this message]
2011-09-10 14:19 ` [PATCH 04/21] tty/hvc/hvsi_lib: Updates for running under OPAL v2 Benjamin Herrenschmidt
2011-09-10 14:19 ` [PATCH 05/21] powerpc/powernv: Don't clobber r9 in relative_toc() Benjamin Herrenschmidt
2011-09-10 14:19 ` [PATCH 06/21] powerpc: Add skeleton PowerNV platform Benjamin Herrenschmidt
2011-09-12 1:17 ` Michael Neuling
2011-09-12 6:02 ` Geert Uytterhoeven
2011-09-10 14:19 ` [PATCH 07/21] of: Change logic to overwrite cmd_line with CONFIG_CMDLINE Benjamin Herrenschmidt
2011-09-10 14:19 ` [PATCH 08/21] powerpc/powernv: Add CPU hotplug support Benjamin Herrenschmidt
2011-09-10 14:19 ` [PATCH 09/21] powerpc/powernv: Add OPAL takeover from PowerVM Benjamin Herrenschmidt
2011-09-10 14:19 ` [PATCH 10/21] powerpc/powernv: Get kernel command line accross OPAL takeover Benjamin Herrenschmidt
2011-09-10 14:19 ` [PATCH 11/21] powerpc/powernv: Basic support for OPAL Benjamin Herrenschmidt
2011-09-10 14:19 ` [PATCH 12/21] powerpc/powernv: Add support for instanciating OPAL v2 from Open Firmware Benjamin Herrenschmidt
2011-09-10 14:20 ` [PATCH 13/21] powerpc/powernv: Support for OPAL console Benjamin Herrenschmidt
2011-09-10 14:20 ` [PATCH 14/21] powerpc/powernv: Hookup reboot and poweroff functions Benjamin Herrenschmidt
2011-09-10 14:20 ` [PATCH 15/21] powerpc/powernv: Add RTC and NVRAM support plus RTAS fallbacks Benjamin Herrenschmidt
2011-09-10 14:20 ` [PATCH 16/21] powerpc/powernv: Add OPAL ICS backend Benjamin Herrenschmidt
2011-09-10 14:20 ` [PATCH 17/21] powerpc/powernv: Register and handle OPAL interrupts Benjamin Herrenschmidt
2011-09-10 14:20 ` [PATCH 18/21] powerpc/powernv: Machine check and other system interrupts Benjamin Herrenschmidt
2011-09-10 14:20 ` [PATCH 19/21] powerpc/powernv: Add support for p5ioc2 PCI-X and PCIe Benjamin Herrenschmidt
2011-09-10 14:20 ` [PATCH 20/21] powerpc/powernv: Implement MSI support for p5ioc2 PCIe Benjamin Herrenschmidt
2011-09-10 14:20 ` [PATCH 21/21] powerpc/powernv: Handle PCI-X/PCIe reset delay Benjamin Herrenschmidt
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