lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

x86/PCI: MMCONFIG: add lookup function

Browse Source 
This patch factors out the search for an MMCONFIG region, which was
previously implemented in both mmconfig_32 and mmconfig_64.  No functional
change.

Reviewed-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Bjorn Helgaas
2009-11-13 17:35:04 -07:00
committed by Jesse Barnes
parent 8c57786ad3
commit f6e1d8cc38
4 changed files with 20 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
arch/x86/pci/mmconfig-shared.c
View File

@@ -97,6 +97,18 @@ static __init struct pci_mmcfg_region *pci_mmconfig_add(int segment, int start,
return new;
}
struct pci_mmcfg_region *pci_mmconfig_lookup(int segment, int bus)
{
struct pci_mmcfg_region *cfg;
list_for_each_entry(cfg, &pci_mmcfg_list, list)
if (cfg->segment == segment &&
cfg->start_bus <= bus && bus <= cfg->end_bus)
return cfg;
return NULL;
}
static const char __init *pci_mmcfg_e7520(void)
{
u32 win;