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path: root/drivers/rapidio
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Diffstat (limited to 'drivers/rapidio')
-rw-r--r--drivers/rapidio/devices/tsi721.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/rapidio/devices/tsi721.c b/drivers/rapidio/devices/tsi721.c
index 8e07cd56abdc..53daf634a1ac 100644
--- a/drivers/rapidio/devices/tsi721.c
+++ b/drivers/rapidio/devices/tsi721.c
@@ -1090,7 +1090,7 @@ static void tsi721_init_pc2sr_mapping(struct tsi721_device *priv)
* from rstart to lstart.
*/
static int tsi721_rio_map_inb_mem(struct rio_mport *mport, dma_addr_t lstart,
- u64 rstart, u32 size, u32 flags)
+ u64 rstart, u64 size, u32 flags)
{
struct tsi721_device *priv = mport->priv;
int i, avail = -1;
@@ -1103,6 +1103,10 @@ static int tsi721_rio_map_inb_mem(struct rio_mport *mport, dma_addr_t lstart,
struct tsi721_ib_win_mapping *map = NULL;
int ret = -EBUSY;
+ /* Max IBW size supported by HW is 16GB */
+ if (size > 0x400000000UL)
+ return -EINVAL;
+
if (direct) {
/* Calculate minimal acceptable window size and base address */
@@ -1110,15 +1114,15 @@ static int tsi721_rio_map_inb_mem(struct rio_mport *mport, dma_addr_t lstart,
ibw_start = lstart & ~(ibw_size - 1);
tsi_debug(IBW, &priv->pdev->dev,
- "Direct (RIO_0x%llx -> PCIe_%pad), size=0x%x, ibw_start = 0x%llx",
+ "Direct (RIO_0x%llx -> PCIe_%pad), size=0x%llx, ibw_start = 0x%llx",
rstart, &lstart, size, ibw_start);
while ((lstart + size) > (ibw_start + ibw_size)) {
ibw_size *= 2;
ibw_start = lstart & ~(ibw_size - 1);
- if (ibw_size > 0x80000000) { /* Limit max size to 2GB */
+ /* Check for crossing IBW max size 16GB */
+ if (ibw_size > 0x400000000UL)
return -EBUSY;
- }
}
loc_start = ibw_start;
@@ -1129,7 +1133,7 @@ static int tsi721_rio_map_inb_mem(struct rio_mport *mport, dma_addr_t lstart,
} else {
tsi_debug(IBW, &priv->pdev->dev,
- "Translated (RIO_0x%llx -> PCIe_%pad), size=0x%x",
+ "Translated (RIO_0x%llx -> PCIe_%pad), size=0x%llx",
rstart, &lstart, size);
if (!is_power_of_2(size) || size < 0x1000 ||