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From: Matthew Minter <matt@masarand.com>
To: linux-pci@vger.kernel.org, bhelgaas@google.com,
	Liviu.Dudau@arm.com, ddaney@caviumnetworks.com,
	lorenzo.pieralisi@arm.com
Cc: Matthew Minter <matt@masarand.com>
Subject: [PATCH V4 06/29] PCI: Add a call to pci_assign_irq in do_pci_enable_device
Date: Fri, 23 Oct 2015 06:03:39 +0100	[thread overview]
Message-ID: <1445576642-29624-7-git-send-email-matt@masarand.com> (raw)
In-Reply-To: <1445576642-29624-1-git-send-email-matt@masarand.com>

The pci_assign_irq function allows assignment of an irq to devices
during device enable time rather than only at boot. Therefore call it
in the do_pci_enable_device function during the enable device
code path so this assignment can be performed.

This patch will do nothing on arches which do not set the irq mapping
function pointers and is therefore currently a noop, however as support
for these function pointers is added to arch specific code this will
cause irq asignment to migrate to device enable time allowing the new
codepaths to be used.

Signed-off-by: Matthew Minter <matt@masarand.com>
---
 drivers/pci/pci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 6a9a111..6907312 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1226,6 +1226,8 @@ static int do_pci_enable_device(struct pci_dev *dev, int bars)
 	if (err < 0 && err != -EIO)
 		return err;
 
+	pci_assign_irq(dev);
+
 	bridge = pci_upstream_bridge(dev);
 	if (bridge)
 		pcie_aspm_powersave_config_link(bridge);
-- 
2.6.2


  parent reply	other threads:[~2015-10-23  5:05 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-23  5:03 [PATCH V4] Delay allocation of PCI device IRQs from boot time until bus scan time to fix PCI hotplugging Matthew Minter
2015-10-23  5:03 ` [PATCH V4 01/29] PCI: Build setup-irq.o on all arches Matthew Minter
2015-10-23  5:03 ` [PATCH V4 02/29] PCI: Add a prototype for pci_find_host_bridge to pci.h Matthew Minter
2015-10-23  5:03 ` [PATCH V4 03/29] PCI: Add IRQ mapping function pointers to pci_host_bridge struct Matthew Minter
2015-10-23  5:03 ` [PATCH V4 04/29] PCI: Remove const from the pci_dev struct passed to pci_fixup_irqs Matthew Minter
2015-10-23  5:03 ` [PATCH V4 05/29] PCI: Add pci_assign_irq function and have pci_fixup_irqs use it Matthew Minter
2015-10-23  5:03 ` Matthew Minter [this message]
2015-10-23  5:03 ` [PATCH V4 07/29] x86/pci: Move pcibios_root_bridge_prepare from acpi.c to irq.c Matthew Minter
2015-10-23  5:03 ` [PATCH V4 08/29] x86/pci: Defer IRQ assignment to device enable time Matthew Minter
2015-12-23 23:04   ` Bjorn Helgaas
2016-01-12 11:25     ` Lorenzo Pieralisi
2015-10-23  5:03 ` [PATCH V4 09/29] x86/pci: Pass pin into pcibios_lookup_irq rather than look it up Matthew Minter
2015-10-23  5:03 ` [PATCH V4 10/29] ARM/PCI: Defer IRQ assignment to device enable time Matthew Minter
2015-10-23  5:03 ` [PATCH V4 11/29] powerpc/pci: " Matthew Minter
2015-10-23  5:03 ` [PATCH V4 12/29] sh/PCI: Remove __init optimisations from IRQ mapping functions/data Matthew Minter
2015-10-23  5:03 ` [PATCH V4 13/29] sh/PCI: Defer IRQ assignment to device enable time Matthew Minter
2015-10-23  5:03 ` [PATCH V4 14/29] alpha/PCI: " Matthew Minter
2015-10-23  5:03 ` [PATCH V4 15/29] cris/PCI: " Matthew Minter
2015-10-23  5:03 ` [PATCH V4 16/29] frv/PCI: " Matthew Minter
2015-10-23  5:03 ` [PATCH V4 17/29] m68k/pci: " Matthew Minter
2015-10-23  5:44   ` kbuild test robot
2015-10-23  5:03 ` [PATCH V4 18/29] microblaze/PCI: " Matthew Minter
2015-10-23  5:40   ` kbuild test robot
2015-10-23  5:03 ` [PATCH V4 19/29] MIPS/PCI: " Matthew Minter
2015-10-23  6:02   ` kbuild test robot
2015-10-23  5:03 ` [PATCH V4 20/29] mn10300: Defer PCI " Matthew Minter
2015-10-23  5:03 ` [PATCH V4 21/29] mn10300: Remove pcibios_enable_device function Matthew Minter
2015-10-23  5:03 ` [PATCH V4 22/29] sparc/PCI: Defer IRQ assignment to device enable time Matthew Minter
2015-10-23  5:03 ` [PATCH V4 23/29] tile: pci: " Matthew Minter
2015-10-23  5:34   ` kbuild test robot
2015-10-23  5:03 ` [PATCH V4 24/29] unicore32/PCI: " Matthew Minter
2015-10-23  5:03 ` [PATCH V4 25/29] PCI: Update pci-versatile to use IRQ deferred assignment Matthew Minter
2015-10-23  5:03 ` [PATCH V4 26/29] PCI: Update pcie-iproc to use IRQ deffered assignment Matthew Minter
2015-10-23  5:04 ` [PATCH V4 27/29] PCI: Update pci-host-generic " Matthew Minter
2015-10-23  9:40   ` kbuild test robot
2015-10-23  5:04 ` [PATCH V4 28/29] of/pci: Fix comment for pci_fixup_irqs changing to pci_assign_irq Matthew Minter
2016-01-13 11:25   ` Lorenzo Pieralisi
2015-10-23  5:04 ` [PATCH V4 29/29] PCI: Remove pci_fixup_irqs function Matthew Minter
2015-12-07 17:32 ` [PATCH V4] Delay allocation of PCI device IRQs from boot time until bus scan time to fix PCI hotplugging Bjorn Helgaas
2015-12-18 21:54   ` Christopher Covington
2015-12-19 11:50     ` Matthew Minter

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