[PATCH 1/7] pci: export PCI BAR size-reading functions

[Darren Salt]

This is to assist driver modules which do BAR resizing.

Signed-off-by: Darren Salt <devspam at moreofthesa.me.uk>
---
 drivers/pci/pci.c   | 2 ++
 drivers/pci/pci.h   | 2 --
 include/linux/pci.h | 4 ++++
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index e578d34095e9..3f6042d9ad83 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -3579,6 +3579,7 @@ u32 pci_rebar_get_possible_sizes(struct pci_dev *pdev, int bar)
 	pci_read_config_dword(pdev, pos + PCI_REBAR_CAP, &cap);
 	return (cap & PCI_REBAR_CAP_SIZES) >> 4;
 }
+EXPORT_SYMBOL(pci_rebar_get_possible_sizes);
 
 /**
  * pci_rebar_get_current_size - get the current size of a BAR
@@ -3600,6 +3601,7 @@ int pci_rebar_get_current_size(struct pci_dev *pdev, int bar)
 	pci_read_config_dword(pdev, pos + PCI_REBAR_CTRL, &ctrl);
 	return (ctrl & PCI_REBAR_CTRL_BAR_SIZE) >> PCI_REBAR_CTRL_BAR_SHIFT;
 }
+EXPORT_SYMBOL(pci_rebar_get_current_size);
 
 /**
  * pci_rebar_set_size - set a new size for a BAR
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index f86cae9aa1f4..8373d94414e9 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -608,8 +608,6 @@ int acpi_get_rc_resources(struct device *dev, const char *hid, u16 segment,
 			  struct resource *res);
 #endif
 
-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 pci_rebar_set_size(struct pci_dev *pdev, int bar, int size);
 static inline u64 pci_rebar_size_to_bytes(int size)
 {
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 22207a79762c..5aa035622741 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1226,7 +1226,11 @@ void pci_update_resource(struct pci_dev *dev, int resno);
 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);
+
+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);
+
 int pci_select_bars(struct pci_dev *dev, unsigned long flags);
 bool pci_device_is_present(struct pci_dev *pdev);
 void pci_ignore_hotplug(struct pci_dev *dev);
-- 
2.20.1