diff options
author | Matthew Wilcox <matthew@wil.cx> | 2006-03-28 16:03:44 (GMT) |
---|---|---|
committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-04-13 15:13:23 (GMT) |
commit | b6d105d7ee188040a6e5eb86101e7476d94b3076 (patch) | |
tree | 88a74366e7504c9d6046d243615e758a5b24a20e /drivers/scsi/sym53c8xx_2 | |
parent | 1f61d82490a26dbcde903b33e24f6d11b758b64c (diff) | |
download | linux-b6d105d7ee188040a6e5eb86101e7476d94b3076.tar.xz |
[SCSI] Use pcibios_resource_to_bus()
We had our own code (pci_get_base_address()) to get the bus address of
a BAR. We can get this using pcibios_resource_to_bus() instead.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/sym53c8xx_2')
-rw-r--r-- | drivers/scsi/sym53c8xx_2/sym_glue.c | 55 |
1 files changed, 13 insertions, 42 deletions
diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c index ec9d93a..e6ff89a 100644 --- a/drivers/scsi/sym53c8xx_2/sym_glue.c +++ b/drivers/scsi/sym53c8xx_2/sym_glue.c @@ -134,45 +134,6 @@ static void sym2_setup_params(void) } } -/* - * We used to try to deal with 64-bit BARs here, but don't any more. - * There are many parts of this driver which would need to be modified - * to handle a 64-bit base address, including scripts. I'm uncomfortable - * with making those changes when I have no way of testing it, so I'm - * just going to disable it. - * - * Note that some machines (eg HP rx8620 and Superdome) have bus addresses - * below 4GB and physical addresses above 4GB. These will continue to work. - */ -static int __devinit -pci_get_base_address(struct pci_dev *pdev, int index, unsigned long *basep) -{ - u32 tmp; - unsigned long base; -#define PCI_BAR_OFFSET(index) (PCI_BASE_ADDRESS_0 + (index<<2)) - - pci_read_config_dword(pdev, PCI_BAR_OFFSET(index++), &tmp); - base = tmp; - if ((tmp & 0x7) == PCI_BASE_ADDRESS_MEM_TYPE_64) { - pci_read_config_dword(pdev, PCI_BAR_OFFSET(index++), &tmp); - if (tmp > 0) { - dev_err(&pdev->dev, - "BAR %d is 64-bit, disabling\n", index - 1); - base = 0; - } - } - - if ((base & PCI_BASE_ADDRESS_SPACE) == PCI_BASE_ADDRESS_SPACE_IO) { - base &= PCI_BASE_ADDRESS_IO_MASK; - } else { - base &= PCI_BASE_ADDRESS_MEM_MASK; - } - - *basep = base; - return index; -#undef PCI_BAR_OFFSET -} - static struct scsi_transport_template *sym2_transport_template = NULL; /* @@ -1866,13 +1827,23 @@ static int __devinit sym_set_workarounds(struct sym_device *device) static void __devinit sym_init_device(struct pci_dev *pdev, struct sym_device *device) { - int i; + int i = 2; + struct pci_bus_region bus_addr; device->host_id = SYM_SETUP_HOST_ID; device->pdev = pdev; - i = pci_get_base_address(pdev, 1, &device->mmio_base); - pci_get_base_address(pdev, i, &device->ram_base); + pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[1]); + device->mmio_base = bus_addr.start; + + /* + * If the BAR is 64-bit, resource 2 will be occupied by the + * upper 32 bits + */ + if (!pdev->resource[i].flags) + i++; + pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[i]); + device->ram_base = bus_addr.start; #ifdef CONFIG_SCSI_SYM53C8XX_MMIO if (device->mmio_base) |