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authorRam Pai <linuxram@us.ibm.com>2011-07-07 11:19:10 -0700
committerJesse Barnes <jbarnes@virtuousgeek.org>2011-07-08 15:49:20 -0700
commitf483d3923dc3a6394c483e28ccb3fe700bdf399e (patch)
treeef487babd0ef104e1fa8323c23050d66096c0f3a /drivers/pci/pci.h
parenta2fa83faf47b514ab947cea916d3691b66525073 (diff)
PCI: conditional resource-reallocation through kernel parameter pci=realloc
Multiple attempts to dynamically reallocate pci resources have unfortunately lead to regressions. Though we continue to fix the regressions and fine tune the dynamic-reallocation behavior, we have not reached a acceptable state yet. This patch provides a interim solution. It disables dynamic reallocation by default, but adds the ability to enable it through pci=realloc kernel command line parameter. Tested-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/pci.h')
-rw-r--r--drivers/pci/pci.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 731e20265ac..3a39bf1f1e2 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -146,6 +146,8 @@ static inline void pci_no_msi(void) { }
static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { }
#endif
+extern void pci_realloc(void);
+
static inline int pci_no_d1d2(struct pci_dev *dev)
{
unsigned int parent_dstates = 0;