From: Joe Schultz <jschultz@xxxxxxxxxxx>
This patch has been added to the 3.12 stable tree. If you have any
objections, please let us know.
===============
commit 226572b110ab6083cb8c1d6afb191166b4178179 upstream.
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@xxxxxxxxxxx>
Signed-off-by: Aaron Sierra <asierra@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
drivers/vme/bridges/vme_tsi148.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/vme/bridges/vme_tsi148.c b/drivers/vme/bridges/vme_tsi148.c
index 7db4e6395e23..6783ad0d1875 100644
--- a/drivers/vme/bridges/vme_tsi148.c
+++ b/drivers/vme/bridges/vme_tsi148.c
@@ -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, ®ion,
+ &image->bus_resource);
+ pci_base = region.start;
/*
* Bound address is a valid address for the window, adjust
--
2.1.3
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