This is to assist driver modules which do BAR resizing.
Signed-off-by: Darren Salt <devs...@moreofthesa.me.uk>
---
drivers/pci/pci.h | 4 ----
include/linux/pci.h | 9 +++++++++
2 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 8373d94414e9..9a3837a30369 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -609,10 +609,6 @@ int acpi_get_rc_resources(struct device *dev, const char
*hid, u16 segment,
#endif
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/include/linux/pci.h b/include/linux/pci.h
index 5aa035622741..5eee18969fe8 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1227,6 +1227,15 @@ int __must_check pci_assign_resource(struct pci_dev
*dev, int i);
int __must_check pci_reassign_resource(struct pci_dev *dev, int i,
resource_size_t add_size, resource_size_t align);
void pci_release_resource(struct pci_dev *dev, int resno);
+static __always_inline int pci_rebar_bytes_to_size(u64 bytes)
+{
+ bytes = roundup_pow_of_two(bytes);
+ return order_base_2(((bytes >> 20) | 1)) - 1;
+}
+static __always_inline u64 pci_rebar_size_to_bytes(int size)
+{
+ return 1ULL << (size + 20);
+}
u32 pci_rebar_get_possible_sizes(struct pci_dev *pdev, int bar);
int pci_rebar_get_current_size(struct pci_dev *pdev, int bar);
int __must_check pci_resize_resource(struct pci_dev *dev, int i, int size);
--
2.20.1
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