diff options
| author | Yu Zhao <yu.zhao@intel.com> | 2008-11-22 02:39:32 +0800 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-01-07 11:13:01 -0800 |
| commit | fde09c6d8f92de0c9f75698a75f0989f2234c517 (patch) | |
| tree | 7d01ac3c194e87897185a2bf015f6d3b472e7601 /include/linux/pci.h | |
| parent | 14add80b5120966fe0659d61815b9e9b4b68fdc5 (diff) | |
PCI: define PCI resource names in an 'enum'
This patch moves all definitions of the PCI resource names to an 'enum',
and also replaces some hard-coded resource variables with symbol
names. This change eases introduction of device specific resources.
Reviewed-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Yu Zhao <yu.zhao@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 37 |
1 files changed, 24 insertions, 13 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index c5e02f324e13..da1c22bab40e 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -82,7 +82,30 @@ enum pci_mmap_state { #define PCI_DMA_FROMDEVICE 2 #define PCI_DMA_NONE 3 -#define DEVICE_COUNT_RESOURCE 12 +/* + * For PCI devices, the region numbers are assigned this way: + */ +enum { + /* #0-5: standard PCI resources */ + PCI_STD_RESOURCES, + PCI_STD_RESOURCE_END = 5, + + /* #6: expansion ROM resource */ + PCI_ROM_RESOURCE, + + /* resources assigned to buses behind the bridge */ +#define PCI_BRIDGE_RESOURCE_NUM 4 + + PCI_BRIDGE_RESOURCES, + PCI_BRIDGE_RESOURCE_END = PCI_BRIDGE_RESOURCES + + PCI_BRIDGE_RESOURCE_NUM - 1, + + /* total resources associated with a PCI device */ + PCI_NUM_RESOURCES, + + /* preserve this for compatibility */ + DEVICE_COUNT_RESOURCE +}; typedef int __bitwise pci_power_t; @@ -274,18 +297,6 @@ static inline void pci_add_saved_cap(struct pci_dev *pci_dev, hlist_add_head(&new_cap->next, &pci_dev->saved_cap_space); } -/* - * For PCI devices, the region numbers are assigned this way: - * - * 0-5 standard PCI regions - * 6 expansion ROM - * 7-10 bridges: address space assigned to buses behind the bridge - */ - -#define PCI_ROM_RESOURCE 6 -#define PCI_BRIDGE_RESOURCES 7 -#define PCI_NUM_RESOURCES 11 - #ifndef PCI_BUS_NUM_RESOURCES #define PCI_BUS_NUM_RESOURCES 16 #endif |