From: Bjorn Helgaas <bjorn.helgaas@hp.com>
To: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: linux-pci@vger.kernel.org, linux-arch@vger.kernel.org,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Russell King <rmk@arm.linux.org.uk>,
Ralf Baechle <ralf@linux-mips.org>,
Kyle McMartin <kyle@parisc-linux.org>,
Matthew Wilcox <matthew@wil.cx>,
Grant Grundler <grundler@parisc-linux.org>,
Paul Mackerras <paulus@samba.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mundt <lethal@linux-sh.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
hpa@zytor.com
Subject: [PATCH 06/12] PCI: alpha: use generic pci_swizzle_interrupt_pin()
Date: Tue, 09 Dec 2008 16:12:07 -0700 [thread overview]
Message-ID: <20081209231207.18153.99362.stgit@bob.kio> (raw)
In-Reply-To: <20081209231037.18153.86962.stgit@bob.kio>
Use the generic pci_swizzle_interrupt_pin() instead of arch-specific code.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
---
arch/alpha/kernel/pci.c | 2 +-
arch/alpha/kernel/pci_impl.h | 9 ++-------
arch/alpha/kernel/sys_dp264.c | 2 +-
arch/alpha/kernel/sys_eiger.c | 2 +-
arch/alpha/kernel/sys_miata.c | 2 +-
arch/alpha/kernel/sys_noritake.c | 2 +-
arch/alpha/kernel/sys_ruffian.c | 2 +-
arch/alpha/kernel/sys_sable.c | 2 +-
8 files changed, 9 insertions(+), 14 deletions(-)
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index ff8cb63..b03d9f4 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -328,7 +328,7 @@ common_swizzle(struct pci_dev *dev, u8 *pinp)
u8 pin = *pinp;
while (dev->bus->parent) {
- pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn));
+ pin = pci_swizzle_interrupt_pin(dev, pin);
/* Move up the chain of bridges. */
dev = dev->bus->self;
}
diff --git a/arch/alpha/kernel/pci_impl.h b/arch/alpha/kernel/pci_impl.h
index f8b7499..7336651 100644
--- a/arch/alpha/kernel/pci_impl.h
+++ b/arch/alpha/kernel/pci_impl.h
@@ -106,16 +106,11 @@ struct pci_iommu_arena;
* Where A = pin 1, B = pin 2 and so on and pin=0 = default = A.
* Thus, each swizzle is ((pin-1) + (device#-4)) % 4
*
- * The following code swizzles for exactly one bridge. The routine
+ * pci_swizzle_interrupt_pin() swizzles for exactly one bridge. The routine
* common_swizzle below handles multiple bridges. But there are a
- * couple boards that do strange things, so we define this here.
+ * couple boards that do strange things.
*/
-static inline u8 bridge_swizzle(u8 pin, u8 slot)
-{
- return (((pin-1) + slot) % 4) + 1;
-}
-
/* The following macro is used to implement the table-based irq mapping
function for all single-bus Alphas. */
diff --git a/arch/alpha/kernel/sys_dp264.c b/arch/alpha/kernel/sys_dp264.c
index c71b0fd..1d707a7 100644
--- a/arch/alpha/kernel/sys_dp264.c
+++ b/arch/alpha/kernel/sys_dp264.c
@@ -481,7 +481,7 @@ monet_swizzle(struct pci_dev *dev, u8 *pinp)
slot = PCI_SLOT(dev->devfn);
break;
}
- pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn)) ;
+ pin = pci_swizzle_interrupt_pin(dev, pin);
/* Move up the chain of bridges. */
dev = dev->bus->self;
diff --git a/arch/alpha/kernel/sys_eiger.c b/arch/alpha/kernel/sys_eiger.c
index 7ef3b6f..baf60f3 100644
--- a/arch/alpha/kernel/sys_eiger.c
+++ b/arch/alpha/kernel/sys_eiger.c
@@ -204,7 +204,7 @@ eiger_swizzle(struct pci_dev *dev, u8 *pinp)
break;
}
/* Must be a card-based bridge. */
- pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn));
+ pin = pci_swizzle_interrupt_pin(dev, pin);
/* Move up the chain of bridges. */
dev = dev->bus->self;
diff --git a/arch/alpha/kernel/sys_miata.c b/arch/alpha/kernel/sys_miata.c
index 910b43c..61ccd95 100644
--- a/arch/alpha/kernel/sys_miata.c
+++ b/arch/alpha/kernel/sys_miata.c
@@ -219,7 +219,7 @@ miata_swizzle(struct pci_dev *dev, u8 *pinp)
slot = PCI_SLOT(dev->devfn) + 9;
break;
}
- pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn));
+ pin = pci_swizzle_interrupt_pin(dev, pin);
/* Move up the chain of bridges. */
dev = dev->bus->self;
diff --git a/arch/alpha/kernel/sys_noritake.c b/arch/alpha/kernel/sys_noritake.c
index eb2a1d6..538876b 100644
--- a/arch/alpha/kernel/sys_noritake.c
+++ b/arch/alpha/kernel/sys_noritake.c
@@ -257,7 +257,7 @@ noritake_swizzle(struct pci_dev *dev, u8 *pinp)
slot = PCI_SLOT(dev->devfn) + 15;
break;
}
- pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn)) ;
+ pin = pci_swizzle_interrupt_pin(dev, pin);
/* Move up the chain of bridges. */
dev = dev->bus->self;
diff --git a/arch/alpha/kernel/sys_ruffian.c b/arch/alpha/kernel/sys_ruffian.c
index 5b99cf3..f15a329 100644
--- a/arch/alpha/kernel/sys_ruffian.c
+++ b/arch/alpha/kernel/sys_ruffian.c
@@ -160,7 +160,7 @@ ruffian_swizzle(struct pci_dev *dev, u8 *pinp)
slot = PCI_SLOT(dev->devfn) + 10;
break;
}
- pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn));
+ pin = pci_swizzle_interrupt_pin(dev, pin);
/* Move up the chain of bridges. */
dev = dev->bus->self;
diff --git a/arch/alpha/kernel/sys_sable.c b/arch/alpha/kernel/sys_sable.c
index a4555f4..d232e42 100644
--- a/arch/alpha/kernel/sys_sable.c
+++ b/arch/alpha/kernel/sys_sable.c
@@ -425,7 +425,7 @@ lynx_swizzle(struct pci_dev *dev, u8 *pinp)
slot = PCI_SLOT(dev->devfn) + 11;
break;
}
- pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn)) ;
+ pin = pci_swizzle_interrupt_pin(dev, pin);
/* Move up the chain of bridges. */
dev = dev->bus->self;
next prev parent reply other threads:[~2008-12-09 23:12 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-09 23:11 [PATCH 00/12] PCI: unify P2P bridge INTx swizzling Bjorn Helgaas
2008-12-09 23:11 ` [PATCH 01/12] PCI Hotplug: cpqphp: use config space PCI interrupt pin encoding Bjorn Helgaas
2008-12-09 23:11 ` Bjorn Helgaas
2008-12-09 23:11 ` [PATCH 02/12] PCI: use config space encoding in pci_get_interrupt_pin() Bjorn Helgaas
2008-12-09 23:11 ` Bjorn Helgaas
2008-12-09 23:11 ` [PATCH 03/12] x86/PCI: use config space encoding for interrupt pins Bjorn Helgaas
2008-12-09 23:11 ` [PATCH 04/12] x86/PCI: minor logic simplications Bjorn Helgaas
2008-12-09 23:11 ` Bjorn Helgaas
2008-12-09 23:12 ` [PATCH 05/12] PCI: add pci_swizzle_interrupt_pin() Bjorn Helgaas
2008-12-09 23:12 ` Bjorn Helgaas
2008-12-11 15:00 ` David Howells
2008-12-11 16:48 ` Bjorn Helgaas
2008-12-11 16:48 ` Bjorn Helgaas
2008-12-11 17:34 ` David Howells
2008-12-11 18:03 ` Bjorn Helgaas
2008-12-11 18:14 ` David Howells
2008-12-11 18:14 ` David Howells
2008-12-11 18:24 ` Bjorn Helgaas
2008-12-09 23:12 ` Bjorn Helgaas [this message]
2008-12-09 23:12 ` [PATCH 07/12] PCI: arm: use generic pci_swizzle_interrupt_pin() Bjorn Helgaas
2008-12-09 23:12 ` Bjorn Helgaas
2008-12-09 23:12 ` [PATCH 08/12] PCI: mips: " Bjorn Helgaas
2008-12-10 13:35 ` Ralf Baechle
2008-12-10 13:35 ` Ralf Baechle
2008-12-09 23:12 ` [PATCH 09/12] PCI: parisc: " Bjorn Helgaas
2008-12-09 23:12 ` Bjorn Helgaas
2008-12-09 23:26 ` Kyle McMartin
2008-12-09 23:26 ` Kyle McMartin
2008-12-09 23:12 ` [PATCH 10/12] PCI: powerpc: " Bjorn Helgaas
2008-12-12 20:03 ` Benjamin Herrenschmidt
2008-12-09 23:12 ` [PATCH 11/12] PCI: sh: " Bjorn Helgaas
2008-12-09 23:12 ` Bjorn Helgaas
2008-12-10 3:49 ` Paul Mundt
2008-12-09 23:12 ` [PATCH 12/12] PCI: x86: " Bjorn Helgaas
2008-12-16 20:20 ` [PATCH 00/12] PCI: unify P2P bridge INTx swizzling Jesse Barnes
2008-12-16 20:20 ` Jesse Barnes
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