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vme_tsi148: Fix PCI address mapping assumption 

Previously, tsi148_master_set() assumed the address contained in its
PCI bus resource represented the actual PCI bus address. This is a fine
assumption on some platforms. However, on platforms that don't use a
1:1 (CPU:PCI) mapping this results in the tsi148 driver configuring an
invalid master window translation.

This patch updates the vme_tsi148 driver to first convert the address
contained in the PCI bus resource into a PCI bus address before using
it.

[asierra: account for pcibios_resource_to_bus() prototype change]
Signed-off-by: Joe Schultz <jschultz@xes-inc.com>
Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Joe Schultz 2014-04-03 14:48:16 -05:00 committed by Greg Kroah-Hartman
parent 098ced8fef
commit 226572b110
1 changed files with 7 additions and 1 deletions
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8
drivers/vme/bridges/vme_tsi148.c
View File

@ -910,11 +910,15 @@ static int tsi148_master_set(struct vme_master_resource *image, int enabled,
unsigned long long pci_bound, vme_offset, pci_base;
struct vme_bridge *tsi148_bridge;
struct tsi148_driver *bridge;
struct pci_bus_region region;
struct pci_dev *pdev;
tsi148_bridge = image->parent;
bridge = tsi148_bridge->driver_priv;
pdev = container_of(tsi148_bridge->parent, struct pci_dev, dev);
/* Verify input data */
if (vme_base & 0xFFFF) {
dev_err(tsi148_bridge->parent, "Invalid VME Window "
@ -949,7 +953,9 @@ static int tsi148_master_set(struct vme_master_resource *image, int enabled,
pci_bound = 0;
vme_offset = 0;
} else {
pci_base = (unsigned long long)image->bus_resource.start;
pcibios_resource_to_bus(pdev->bus, &region,
&image->bus_resource);
pci_base = region.start;
/*
* Bound address is a valid address for the window, adjust