Altix: Initial ACPI support - ROM shadowing.

[sfrench/cifs-2.6.git] / drivers / pci / rom.c

diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c
index 43e4a49f2cc428275cc77a74bb52c61fe9d428b3..d087e0817715a71a9405415d24f47220552c3533 100644 (file)
--- a/drivers/pci/rom.c
+++ b/drivers/pci/rom.c
@@ -72,15 +72,17 @@ void __iomem *pci_map_rom(struct pci_dev *pdev, size_t *size)
        int last_image;
 
        /*
-        * IORESOURCE_ROM_SHADOW set if the VGA enable bit of the Bridge Control
-        * register is set for embedded VGA.
+        * IORESOURCE_ROM_SHADOW set on x86, x86_64 and IA64 supports legacy
+        * memory map if the VGA enable bit of the Bridge Control register is
+        * set for embedded VGA.
         */
        if (res->flags & IORESOURCE_ROM_SHADOW) {
                /* primary video rom always starts here */
                start = (loff_t)0xC0000;
                *size = 0x20000; /* cover C000:0 through E000:0 */
        } else {
-               if (res->flags & IORESOURCE_ROM_COPY) {
+               if (res->flags &
+                       (IORESOURCE_ROM_COPY | IORESOURCE_ROM_BIOS_COPY)) {
                        *size = pci_resource_len(pdev, PCI_ROM_RESOURCE);
                        return (void __iomem *)(unsigned long)
                                pci_resource_start(pdev, PCI_ROM_RESOURCE);
@@ -164,7 +166,8 @@ void __iomem *pci_map_rom_copy(struct pci_dev *pdev, size_t *size)
        if (!rom)
                return NULL;
 
-       if (res->flags & (IORESOURCE_ROM_COPY | IORESOURCE_ROM_SHADOW))
+       if (res->flags & (IORESOURCE_ROM_COPY | IORESOURCE_ROM_SHADOW |
+                         IORESOURCE_ROM_BIOS_COPY))
                return rom;
 
        res->start = (unsigned long)kmalloc(*size, GFP_KERNEL);
@@ -190,7 +193,7 @@ void pci_unmap_rom(struct pci_dev *pdev, void __iomem *rom)
 {
        struct resource *res = &pdev->resource[PCI_ROM_RESOURCE];
 
-       if (res->flags & IORESOURCE_ROM_COPY)
+       if (res->flags & (IORESOURCE_ROM_COPY | IORESOURCE_ROM_BIOS_COPY))
                return;
 
        iounmap(rom);
@@ -214,6 +217,7 @@ void pci_remove_rom(struct pci_dev *pdev)
                sysfs_remove_bin_file(&pdev->dev.kobj, pdev->rom_attr);
        if (!(res->flags & (IORESOURCE_ROM_ENABLE |
                            IORESOURCE_ROM_SHADOW |
+                           IORESOURCE_ROM_BIOS_COPY |
                            IORESOURCE_ROM_COPY)))
                pci_disable_rom(pdev);
 }