public inbox for linux-arch@vger.kernel.org
 help / color / mirror / Atom feed
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;

  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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20081209231207.18153.99362.stgit@bob.kio \
    --to=bjorn.helgaas@hp.com \
    --cc=benh@kernel.crashing.org \
    --cc=grundler@parisc-linux.org \
    --cc=hpa@zytor.com \
    --cc=ink@jurassic.park.msu.ru \
    --cc=jbarnes@virtuousgeek.org \
    --cc=kyle@parisc-linux.org \
    --cc=lethal@linux-sh.org \
    --cc=linux-arch@vger.kernel.org \
    --cc=linux-pci@vger.kernel.org \
    --cc=matthew@wil.cx \
    --cc=mingo@redhat.com \
    --cc=paulus@samba.org \
    --cc=ralf@linux-mips.org \
    --cc=rmk@arm.linux.org.uk \
    --cc=tglx@linutronix.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox