* between the ROM and other resources, so enabling it may disable access
* to MMIO registers or other card memory.
*/
-static int pci_enable_rom(struct pci_dev *pdev)
+int pci_enable_rom(struct pci_dev *pdev)
{
struct resource *res = pdev->resource + PCI_ROM_RESOURCE;
struct pci_bus_region region;
* Disable ROM decoding on a PCI device by turning off the last bit in the
* ROM BAR.
*/
-static void pci_disable_rom(struct pci_dev *pdev)
+void pci_disable_rom(struct pci_dev *pdev)
{
u32 rom_addr;
pci_read_config_dword(pdev, pdev->rom_base_reg, &rom_addr);
/**
* pci_get_rom_size - obtain the actual size of the ROM image
+ * @pdev: target PCI device
* @rom: kernel virtual pointer to image of ROM
* @size: size of PCI window
* return: size of actual ROM image
* The PCI window size could be much larger than the
* actual image size.
*/
-size_t pci_get_rom_size(void __iomem *rom, size_t size)
+size_t pci_get_rom_size(struct pci_dev *pdev, void __iomem *rom, size_t size)
{
void __iomem *image;
int last_image;
do {
void __iomem *pds;
/* Standard PCI ROMs start out with these bytes 55 AA */
- if (readb(image) != 0x55)
+ if (readb(image) != 0x55) {
+ dev_err(&pdev->dev, "Invalid ROM contents\n");
break;
+ }
if (readb(image + 1) != 0xAA)
break;
/* get the PCI data structure and check its signature */
* pci_map_rom - map a PCI ROM to kernel space
* @pdev: pointer to pci device struct
* @size: pointer to receive size of pci window over ROM
- * @return: kernel virtual pointer to image of ROM
+ *
+ * Return: kernel virtual pointer to image of ROM
*
* Map a PCI ROM into kernel space. If ROM is boot video ROM,
* the shadow BIOS copy will be returned instead of the
* size is much larger than the actual size of the ROM.
* True size is important if the ROM is going to be copied.
*/
- *size = pci_get_rom_size(rom, *size);
+ *size = pci_get_rom_size(pdev, rom, *size);
return rom;
}
* pci_map_rom_copy - map a PCI ROM to kernel space, create a copy
* @pdev: pointer to pci device struct
* @size: pointer to receive size of pci window over ROM
- * @return: kernel virtual pointer to image of ROM
+ *
+ * Return: kernel virtual pointer to image of ROM
*
* Map a PCI ROM into kernel space. If ROM is boot video ROM,
* the shadow BIOS copy will be returned instead of the
EXPORT_SYMBOL(pci_map_rom);
EXPORT_SYMBOL(pci_unmap_rom);
+EXPORT_SYMBOL_GPL(pci_enable_rom);
+EXPORT_SYMBOL_GPL(pci_disable_rom);