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authorAlistair Popple <alistair@popple.id.au>2013-12-09 11:17:03 +0400
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-12-30 07:17:19 +0400
commitd084775738b746648d4102337163a04534a02982 (patch)
tree641f5ea99dcdb27f51a7646d56a8d245f1d7f9c1 /drivers/net/ethernet/ibm
parent3a553170d35d69bea3877bffa508489dfa6f133d (diff)
downloadlinux-d084775738b746648d4102337163a04534a02982.tar.xz
powerpc/iommu: Update the generic code to use dynamic iommu page sizes
This patch updates the generic iommu backend code to use the it_page_shift field to determine the iommu page size instead of using hardcoded values. Signed-off-by: Alistair Popple <alistair@popple.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'drivers/net/ethernet/ibm')
-rw-r--r--drivers/net/ethernet/ibm/ibmveth.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
index f7d7538b6bd9..d04dbaba83dd 100644
--- a/drivers/net/ethernet/ibm/ibmveth.c
+++ b/drivers/net/ethernet/ibm/ibmveth.c
@@ -1276,31 +1276,34 @@ static unsigned long ibmveth_get_desired_dma(struct vio_dev *vdev)
{
struct net_device *netdev = dev_get_drvdata(&vdev->dev);
struct ibmveth_adapter *adapter;
+ struct iommu_table *tbl;
unsigned long ret;
int i;
int rxqentries = 1;
+ tbl = get_iommu_table_base(&vdev->dev);
+
/* netdev inits at probe time along with the structures we need below*/
if (netdev == NULL)
- return IOMMU_PAGE_ALIGN_4K(IBMVETH_IO_ENTITLEMENT_DEFAULT);
+ return IOMMU_PAGE_ALIGN(IBMVETH_IO_ENTITLEMENT_DEFAULT, tbl);
adapter = netdev_priv(netdev);
ret = IBMVETH_BUFF_LIST_SIZE + IBMVETH_FILT_LIST_SIZE;
- ret += IOMMU_PAGE_ALIGN_4K(netdev->mtu);
+ ret += IOMMU_PAGE_ALIGN(netdev->mtu, tbl);
for (i = 0; i < IBMVETH_NUM_BUFF_POOLS; i++) {
/* add the size of the active receive buffers */
if (adapter->rx_buff_pool[i].active)
ret +=
adapter->rx_buff_pool[i].size *
- IOMMU_PAGE_ALIGN_4K(adapter->rx_buff_pool[i].
- buff_size);
+ IOMMU_PAGE_ALIGN(adapter->rx_buff_pool[i].
+ buff_size, tbl);
rxqentries += adapter->rx_buff_pool[i].size;
}
/* add the size of the receive queue entries */
- ret += IOMMU_PAGE_ALIGN_4K(
- rxqentries * sizeof(struct ibmveth_rx_q_entry));
+ ret += IOMMU_PAGE_ALIGN(
+ rxqentries * sizeof(struct ibmveth_rx_q_entry), tbl);
return ret;
}