diff options
author | Shaohua Li <shaohua.li@intel.com> | 2006-02-08 04:11:38 -0500 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-04-14 15:25:25 -0400 |
commit | 41017f0cac925e4a6bcf3359b75e5538112d4216 (patch) | |
tree | 5c8f4590707450820ffb286f681bcaeb300cde84 /include/linux/pci.h | |
parent | f043ca43c1ae354346f72dc5826d820d5619f0b2 (diff) |
[PATCH] PCI: MSI(X) save/restore for suspend/resume
Add MSI(X) configure sapce save/restore in generic PCI helper.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/pci.h')
-rw-r--r-- | include/linux/pci.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 0aad5a378e95..15e1675edef9 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h | |||
@@ -100,6 +100,12 @@ enum pci_bus_flags { | |||
100 | PCI_BUS_FLAGS_NO_MSI = (pci_bus_flags_t) 1, | 100 | PCI_BUS_FLAGS_NO_MSI = (pci_bus_flags_t) 1, |
101 | }; | 101 | }; |
102 | 102 | ||
103 | struct pci_cap_saved_state { | ||
104 | struct hlist_node next; | ||
105 | char cap_nr; | ||
106 | u32 data[0]; | ||
107 | }; | ||
108 | |||
103 | /* | 109 | /* |
104 | * The pci_dev structure is used to describe PCI devices. | 110 | * The pci_dev structure is used to describe PCI devices. |
105 | */ | 111 | */ |
@@ -159,6 +165,7 @@ struct pci_dev { | |||
159 | unsigned int block_ucfg_access:1; /* userspace config space access is blocked */ | 165 | unsigned int block_ucfg_access:1; /* userspace config space access is blocked */ |
160 | 166 | ||
161 | u32 saved_config_space[16]; /* config space saved at suspend time */ | 167 | u32 saved_config_space[16]; /* config space saved at suspend time */ |
168 | struct hlist_head saved_cap_space; | ||
162 | struct bin_attribute *rom_attr; /* attribute descriptor for sysfs ROM entry */ | 169 | struct bin_attribute *rom_attr; /* attribute descriptor for sysfs ROM entry */ |
163 | int rom_attr_enabled; /* has display of the rom attribute been enabled? */ | 170 | int rom_attr_enabled; /* has display of the rom attribute been enabled? */ |
164 | struct bin_attribute *res_attr[DEVICE_COUNT_RESOURCE]; /* sysfs file for resources */ | 171 | struct bin_attribute *res_attr[DEVICE_COUNT_RESOURCE]; /* sysfs file for resources */ |
@@ -169,6 +176,30 @@ struct pci_dev { | |||
169 | #define to_pci_dev(n) container_of(n, struct pci_dev, dev) | 176 | #define to_pci_dev(n) container_of(n, struct pci_dev, dev) |
170 | #define for_each_pci_dev(d) while ((d = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, d)) != NULL) | 177 | #define for_each_pci_dev(d) while ((d = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, d)) != NULL) |
171 | 178 | ||
179 | static inline struct pci_cap_saved_state *pci_find_saved_cap( | ||
180 | struct pci_dev *pci_dev,char cap) | ||
181 | { | ||
182 | struct pci_cap_saved_state *tmp; | ||
183 | struct hlist_node *pos; | ||
184 | |||
185 | hlist_for_each_entry(tmp, pos, &pci_dev->saved_cap_space, next) { | ||
186 | if (tmp->cap_nr == cap) | ||
187 | return tmp; | ||
188 | } | ||
189 | return NULL; | ||
190 | } | ||
191 | |||
192 | static inline void pci_add_saved_cap(struct pci_dev *pci_dev, | ||
193 | struct pci_cap_saved_state *new_cap) | ||
194 | { | ||
195 | hlist_add_head(&new_cap->next, &pci_dev->saved_cap_space); | ||
196 | } | ||
197 | |||
198 | static inline void pci_remove_saved_cap(struct pci_cap_saved_state *cap) | ||
199 | { | ||
200 | hlist_del(&cap->next); | ||
201 | } | ||
202 | |||
172 | /* | 203 | /* |
173 | * For PCI devices, the region numbers are assigned this way: | 204 | * For PCI devices, the region numbers are assigned this way: |
174 | * | 205 | * |