diff options
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pci.h | 4 | ||||
| -rw-r--r-- | drivers/pci/rebar.c | 12 |
2 files changed, 12 insertions, 4 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 41df35920632..a1e7dbeb0f2c 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -1024,10 +1024,6 @@ void pci_rebar_init(struct pci_dev *pdev); void pci_restore_rebar_state(struct pci_dev *pdev); int pci_rebar_get_current_size(struct pci_dev *pdev, int bar); int pci_rebar_set_size(struct pci_dev *pdev, int bar, int size); -static inline u64 pci_rebar_size_to_bytes(int size) -{ - return 1ULL << (size + 20); -} struct device_node; diff --git a/drivers/pci/rebar.c b/drivers/pci/rebar.c index f29810fe0a58..a81cb3fcddef 100644 --- a/drivers/pci/rebar.c +++ b/drivers/pci/rebar.c @@ -35,6 +35,18 @@ int pci_rebar_bytes_to_size(u64 bytes) } EXPORT_SYMBOL_GPL(pci_rebar_bytes_to_size); +/** + * pci_rebar_size_to_bytes - Convert encoded BAR Size to size in bytes + * @size: encoded BAR Size as defined in the PCIe spec (0=1MB, 31=128TB) + * + * Return: BAR size in bytes + */ +resource_size_t pci_rebar_size_to_bytes(int size) +{ + return 1ULL << (size + ilog2(PCI_REBAR_MIN_SIZE)); +} +EXPORT_SYMBOL_GPL(pci_rebar_size_to_bytes); + void pci_rebar_init(struct pci_dev *pdev) { pdev->rebar_cap = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_REBAR); |