diff options
Diffstat (limited to 'drivers/rapidio/devices/tsi721.c')
| -rw-r--r-- | drivers/rapidio/devices/tsi721.c | 14 |
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 || |