Commit 8fbdbb66 authored by Darren Salt's avatar Darren Salt Committed by Christian König
Browse files

PCI: Export pci_rebar_get_possible_sizes() 



Export pci_rebar_get_possible_sizes() for use by modular drivers.

Signed-off-by: default avatarDarren Salt <devspam@moreofthesa.me.uk>
Signed-off-by: default avatarNirmoy Das <nirmoy.das@amd.com>
Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Acked-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20210107175017.15893-2-nirmoy.das@amd.com
parent ccae03f3

drivers/pci/pci.c

+1 −0
Original line number Diff line number Diff line
@@ -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

drivers/pci/pci.h

+0 −1
Original line number Diff line number Diff line
@@ -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)

include/linux/pci.h

+1 −0
Original line number Diff line number Diff line
@@ -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);