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PCI hotplug: add pci_configure_slot()

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This patch adds a new pci_configure_slot() function that programs the
PCI bus characteristics for a newly-added device.  This is based on
code in pciehp_pci.c, but should be generic enough to be used by pciehp,
shpchp, and acpiphp.

The hotplug_params struct and the program_hpp_typeX() functions are based
on the ACPI definitions, but they aren't really ACPI-specific, and there's
no alternate implementation, so I don't see the need to abstract them yet.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Reviewed-by: Alex Chiang <achiang@hp.com>
Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Bjorn Helgaas
2009-09-14 16:35:20 -06:00
committed by Jesse Barnes
parent 6a29172ba9
commit 8838400db5
3 changed files with 198 additions and 2 deletions
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11
include/linux/pci_hotplug.h
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@@ -232,6 +232,15 @@ int acpi_get_hp_params_from_firmware(struct pci_dev *dev,
int acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev, u32 flags);
int acpi_pci_check_ejectable(struct pci_bus *pbus, acpi_handle handle);
int acpi_pci_detect_ejectable(acpi_handle handle);
#endif
#define pci_get_hp_params(dev, hpp) acpi_get_hp_params_from_firmware(dev, hpp)
#else
static inline int pci_get_hp_params(struct pci_dev *dev,
struct hotplug_params *hpp)
{
return -ENODEV;
}
#endif
void pci_configure_slot(struct pci_dev *dev);
#endif