PCI: Export pci_rebar_get_possible_sizes()

Export pci_rebar_get_possible_sizes() for use by modular drivers.

Signed-off-by: Darren Salt <devspam@moreofthesa.me.uk>
Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20210107175017.15893-2-nirmoy.das@amd.com

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index b9fecc25d21316f8d7c1076d2d126305c58db82c..8d1aec39ecc821f649dc95abca280c1ef028c46e 100644 (file)
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -3605,6 +3605,7 @@ 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

diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 5c59365092fa44da2cff9985194642d7ee67cfdf..8f130f9531b36407da3d07b0eeb8367ccc7e3ebc 100644 (file)
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -630,7 +630,6 @@ 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 b32126d26997e2eae6b53543cf40f9fd97f4db8b..5f25a0ec48c1f96392c89c8628c4c88b29ed0858 100644 (file)
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1232,6 +1232,7 @@ 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 __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);