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| author | Ram Pai <linuxram@us.ibm.com> | 2011-07-07 11:19:10 -0700 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2011-07-08 15:49:20 -0700 |
| commit | f483d3923dc3a6394c483e28ccb3fe700bdf399e (patch) | |
| tree | ef487babd0ef104e1fa8323c23050d66096c0f3a /drivers/pci/pci.h | |
| parent | a2fa83faf47b514ab947cea916d3691b66525073 (diff) | |
| download | lwn-f483d3923dc3a6394c483e28ccb3fe700bdf399e.tar.gz lwn-f483d3923dc3a6394c483e28ccb3fe700bdf399e.zip | |
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.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 731e20265ace..3a39bf1f1e2c 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; |