From: Bjorn Helgaas <bjorn.helgaas@hp•com>
To: linux-pci@atrey•karlin.mff.cuni.cz
To: linux-arch@vger•kernel.org
Cc: Chris Zankel <chris@zankel•net>,
Grant Grundler <grundler@parisc-linux•org>,
linux-parisc@vger•kernel.org, Matthew Wilcox <matthew@wil•cx>,
Kyle McMartin <kyle@parisc-linux•org>,
linuxppc-dev@ozlabs•org, Paul Mackerras <paulus@samba•org>,
linux-arm-kernel@lists•arm.linux.org.uk,
Russell King <rmk@arm•linux.org.uk>
Subject: [patch 03/16] arm: use generic pci_enable_resources()
Date: Tue, 04 Mar 2008 11:56:49 -0700 [thread overview]
Message-ID: <20080304185820.325773560@ldl.fc.hp.com> (raw)
In-Reply-To: 20080304185646.864917286@ldl.fc.hp.com
Use the generic pci_enable_resources() instead of the arch-specific code.
Unlike this arch-specific code, the generic version:
- checks PCI_NUM_RESOURCES (11), not 6, resources
- skips resources that have neither IORESOURCE_IO nor IORESOURCE_MEM set
- skips ROM resources unless IORESOURCE_ROM_ENABLE is set
- checks for resource collisions with "!r->parent"
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp•com>
Index: work8/arch/arm/kernel/bios32.c
===================================================================
--- work8.orig/arch/arm/kernel/bios32.c 2008-03-04 09:59:24.000000000 -0700
+++ work8/arch/arm/kernel/bios32.c 2008-03-04 10:01:40.000000000 -0700
@@ -660,28 +660,15 @@
*/
int pcibios_enable_device(struct pci_dev *dev, int mask)
{
+ int err;
u16 cmd, old_cmd;
- int idx;
- struct resource *r;
+
+ err = pci_enable_resources(dev, mask);
+ if (err < 0)
+ return err;
pci_read_config_word(dev, PCI_COMMAND, &cmd);
old_cmd = cmd;
- for (idx = 0; idx < 6; idx++) {
- /* Only set up the requested stuff */
- if (!(mask & (1 << idx)))
- continue;
-
- r = dev->resource + idx;
- if (!r->start && r->end) {
- printk(KERN_ERR "PCI: Device %s not available because"
- " of resource collisions\n", pci_name(dev));
- return -EINVAL;
- }
- if (r->flags & IORESOURCE_IO)
- cmd |= PCI_COMMAND_IO;
- if (r->flags & IORESOURCE_MEM)
- cmd |= PCI_COMMAND_MEMORY;
- }
/*
* Bridges (eg, cardbus bridges) need to be fully enabled
@@ -690,8 +677,8 @@
cmd |= PCI_COMMAND_IO | PCI_COMMAND_MEMORY;
if (cmd != old_cmd) {
- printk("PCI: enabling device %s (%04x -> %04x)\n",
- pci_name(dev), old_cmd, cmd);
+ dev_info(&dev->dev, "enabling bridge device (%04x -> %04x)\n",
+ old_cmd, cmd);
pci_write_config_word(dev, PCI_COMMAND, cmd);
}
return 0;
--
next prev parent reply other threads:[~2008-03-04 18:56 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-04 18:56 [patch 00/16] PCI: consolidate several pcibios_enable_resources() implementations, v3 Bjorn Helgaas
2008-03-04 18:56 ` [patch 01/16] PCI: add generic pci_enable_resources() Bjorn Helgaas
2008-03-05 14:53 ` David Howells
2008-03-05 20:14 ` Greg KH
2008-03-04 18:56 ` [patch 02/16] alpha: use " Bjorn Helgaas
2008-03-04 18:56 ` Bjorn Helgaas [this message]
2008-03-04 18:56 ` [patch 04/16] cris: " Bjorn Helgaas
2008-03-04 18:56 ` [patch 05/16] frv: " Bjorn Helgaas
2008-03-05 14:52 ` David Howells
2008-03-05 20:14 ` Greg KH
2008-03-04 18:56 ` [patch 06/16] ia64: " Bjorn Helgaas
2008-03-04 18:56 ` [patch 07/16] mips: " Bjorn Helgaas
2008-03-04 18:56 ` [patch 08/16] mn10300: " Bjorn Helgaas
2008-03-05 15:13 ` David Howells
2008-03-05 20:15 ` Greg KH
2008-03-04 18:56 ` [patch 09/16] parisc: " Bjorn Helgaas
2008-03-05 16:17 ` Kyle McMartin
2008-03-05 20:09 ` Greg KH
2008-03-04 18:56 ` [patch 10/16] powerpc: " Bjorn Helgaas
2008-03-04 18:56 ` [patch 11/16] ppc: " Bjorn Helgaas
2008-03-04 18:56 ` [patch 12/16] sh: " Bjorn Helgaas
2008-03-04 18:56 ` [patch 13/16] sparc64: " Bjorn Helgaas
2008-03-04 18:57 ` [patch 14/16] v850: " Bjorn Helgaas
2008-03-04 18:57 ` [patch 15/16] x86: " Bjorn Helgaas
2008-03-04 18:57 ` [patch 16/16] xtensa: " Bjorn Helgaas
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=20080304185820.325773560@ldl.fc.hp.com \
--to=bjorn.helgaas@hp$(echo .)com \
--cc=chris@zankel$(echo .)net \
--cc=grundler@parisc-linux$(echo .)org \
--cc=kyle@parisc-linux$(echo .)org \
--cc=linux-arm-kernel@lists$(echo .)arm.linux.org.uk \
--cc=linux-parisc@vger$(echo .)kernel.org \
--cc=linux-pci@atrey$(echo .)karlin.mff.cuni.cz \
--cc=linuxppc-dev@ozlabs$(echo .)org \
--cc=matthew@wil$(echo .)cx \
--cc=paulus@samba$(echo .)org \
--cc=rmk@arm$(echo .)linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
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