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authorDmitry Kalinkin <dmitry.kalinkin@gmail.com>2015-07-08 17:42:17 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-10-04 19:50:05 +0100
commitda5ae8a991d35d73b3875de0298afaf033d85363 (patch)
treef11772ce317914b0da77c98abb2fc191392fb705 /drivers/vme
parent43b2ec01d2140964d98ea7812ca2f9dff67d2db2 (diff)
downloadop-kernel-dev-da5ae8a991d35d73b3875de0298afaf033d85363.zip
op-kernel-dev-da5ae8a991d35d73b3875de0298afaf033d85363.tar.gz
vme: lower alignment requirement in pci bridge drivers
Universe II allows PCI address grannularity of 4K or 64K depending on the window id. tsi148 only supports 64K. Existing driver implementations are validating window size against this grannularity and then use that very size as alignment parameter to pci_bus_alloc_resource. This constraint is excessive, alignment by granularity should be enough. This changes alignment constraint from size to a fixed constraint of 64K. Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/vme')
-rw-r--r--drivers/vme/bridges/vme_ca91cx42.c2
-rw-r--r--drivers/vme/bridges/vme_tsi148.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/vme/bridges/vme_ca91cx42.c b/drivers/vme/bridges/vme_ca91cx42.c
index f692efc..1d41cf2 100644
--- a/drivers/vme/bridges/vme_ca91cx42.c
+++ b/drivers/vme/bridges/vme_ca91cx42.c
@@ -554,7 +554,7 @@ static int ca91cx42_alloc_resource(struct vme_master_resource *image,
image->bus_resource.flags = IORESOURCE_MEM;
retval = pci_bus_alloc_resource(pdev->bus,
- &image->bus_resource, size, size, PCIBIOS_MIN_MEM,
+ &image->bus_resource, size, 0x10000, PCIBIOS_MIN_MEM,
0, NULL, NULL);
if (retval) {
dev_err(ca91cx42_bridge->parent, "Failed to allocate mem "
diff --git a/drivers/vme/bridges/vme_tsi148.c b/drivers/vme/bridges/vme_tsi148.c
index fb1e7ad..6c40f28 100644
--- a/drivers/vme/bridges/vme_tsi148.c
+++ b/drivers/vme/bridges/vme_tsi148.c
@@ -846,7 +846,7 @@ static int tsi148_alloc_resource(struct vme_master_resource *image,
image->bus_resource.flags = IORESOURCE_MEM;
retval = pci_bus_alloc_resource(pdev->bus,
- &image->bus_resource, size, size, PCIBIOS_MIN_MEM,
+ &image->bus_resource, size, 0x10000, PCIBIOS_MIN_MEM,
0, NULL, NULL);
if (retval) {
dev_err(tsi148_bridge->parent, "Failed to allocate mem "
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