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authorRafael J. Wysocki <rjw@sisk.pl>2008-12-07 16:02:58 -0500
committerJesse Barnes <jbarnes@virtuousgeek.org>2009-01-07 14:12:40 -0500
commit63f4898ace2788a89ed685672aab092e1c3e50e6 (patch)
treeed57eeeb486466697c3d97feaf34396dd2a2b992 /drivers/pci/pci.h
parent894886e5d3de0bde2eded8a39bf7e76023fbd791 (diff)
PCI: handle PCI state saving with interrupts disabled
Since interrupts will soon be disabled at PCI resume time, we need to pre-allocate memory to save/restore PCI config space (or use GFP_ATOMIC, but this is safer). Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/pci.h')
-rw-r--r--drivers/pci/pci.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 9162e242b99e..7242b511a93f 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -45,6 +45,7 @@ struct pci_platform_pm_ops {
45 45
46extern int pci_set_platform_pm(struct pci_platform_pm_ops *ops); 46extern int pci_set_platform_pm(struct pci_platform_pm_ops *ops);
47extern void pci_pm_init(struct pci_dev *dev); 47extern void pci_pm_init(struct pci_dev *dev);
48extern void pci_allocate_cap_save_buffers(struct pci_dev *dev);
48 49
49extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val); 50extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val);
50extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val); 51extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val);