Greg,
This is a patch for PCI code that has no dependencies.
Please note that this patch has been already included in 2.6.9-rc3-mm1.
Please apply.
Thanks,
Kenji Kaneshige
----
Name: add_pcibios_disable_device_hook.patch
Kernel Version: 2.6.9-rc3
Depends: none
Note: This patch is already included in 2.6.9-rc3-mm1.
Change Log:
- Ported to 2.6.9-rc3
- Chaged to use __attrubute__ ((weak)) instead of modifying all
arch specific code.
Description:
This patch adds a hook 'pcibios_disable_device()' into
pci_disable_device() to call architecture specific PCI resource
deallocation code. It's a opposite part of pcibios_enable_device().
We need this hook to deallocate architecture specific PCI resource
such as IRQ resource, etc.. This patch is just for adding the hook, so
'pcibios_disable_device()' is defined as a null function on all
architecture so far.
I tested this patch on i386, x86_64 and ia64. But it has not been
tested on other architectures because I don't have these machines.
Signed-off-by: Kenji Kaneshige <[email protected]>
---
linux-2.6.9-rc3-kanesige/drivers/pci/pci.c | 12 ++++++++++++
1 files changed, 12 insertions(+)
diff -puN drivers/pci/pci.c~add_pcibios_disable_device_hook drivers/pci/pci.c
--- linux-2.6.9-rc3/drivers/pci/pci.c~add_pcibios_disable_device_hook 2004-10-04 17:01:59.329143129 +0900
+++ linux-2.6.9-rc3-kanesige/drivers/pci/pci.c 2004-10-04 17:01:59.332072838 +0900
@@ -387,6 +387,16 @@ pci_enable_device(struct pci_dev *dev)
}
/**
+ * pcibios_disable_device - disable arch specific PCI resources for device dev
+ * @dev: the PCI device to disable
+ *
+ * Disables architecture specific PCI resources for the device. This
+ * is the default implementation. Architecture implementations can
+ * override this.
+ */
+void __attribute__ ((weak)) pcibios_disable_device (struct pci_dev *dev) {}
+
+/**
* pci_disable_device - Disable PCI device after use
* @dev: PCI device to be disabled
*
@@ -406,6 +416,8 @@ pci_disable_device(struct pci_dev *dev)
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}
+
+ pcibios_disable_device(dev);
}
/**
_