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PCI: replace cfg space size (256/4096) by macros.

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This is a cleanup that changes all PCI configuration space size
representations to the macros (PCI_CFG_SPACE_SIZE and
PCI_CFG_SPACE_EXP_SIZE). And the macros are also moved from
drivers/pci/probe.c to drivers/pci/pci.h.

Signed-off-by: Yu Zhao <yu.zhao@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Zhao, Yu
2008-10-13 19:18:07 +08:00
committed by Jesse Barnes
parent 022edd86d7
commit 557848c3c0
4 changed files with 21 additions and 12 deletions
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11
drivers/pci/pci.c
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@@ -213,10 +213,13 @@ int pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap)
int pci_find_ext_capability(struct pci_dev *dev, int cap)
{
u32 header;
int ttl = 480; /* 3840 bytes, minimum 8 bytes per capability */
int pos = 0x100;
int ttl;
int pos = PCI_CFG_SPACE_SIZE;
if (dev->cfg_size <= 256)
/* minimum 8 bytes per capability */
ttl = (PCI_CFG_SPACE_EXP_SIZE - PCI_CFG_SPACE_SIZE) / 8;
if (dev->cfg_size <= PCI_CFG_SPACE_SIZE)
return 0;
if (pci_read_config_dword(dev, pos, &header) != PCIBIOS_SUCCESSFUL)
@@ -234,7 +237,7 @@ int pci_find_ext_capability(struct pci_dev *dev, int cap)
return pos;
pos = PCI_EXT_CAP_NEXT(header);
if (pos < 0x100)
if (pos < PCI_CFG_SPACE_SIZE)
break;
if (pci_read_config_dword(dev, pos, &header) != PCIBIOS_SUCCESSFUL)