[dpdk-dev] [PATCH] bus/fslmc: remove workaround for smmu mapping

[Hemant Agrawal]

This is not required any more for A72 based dpaa2 systems.
(A57 based platform is not in production anymore)

Signed-off-by: Hemant Agrawal <hemant.agrawal at nxp.com>
---
 drivers/bus/fslmc/fslmc_vfio.c           | 23 -----------------------
 drivers/bus/fslmc/fslmc_vfio.h           |  5 -----
 drivers/bus/fslmc/portal/dpaa2_hw_dpio.c | 10 ----------
 3 files changed, 38 deletions(-)

diff --git a/drivers/bus/fslmc/fslmc_vfio.c b/drivers/bus/fslmc/fslmc_vfio.c
index edd9a73..4ac6974 100644
--- a/drivers/bus/fslmc/fslmc_vfio.c
+++ b/drivers/bus/fslmc/fslmc_vfio.c
@@ -188,29 +188,6 @@ static int vfio_map_irq_region(struct fslmc_vfio_group *group)
 	return -errno;
 }
 
-int vfio_dmamap_mem_region(uint64_t vaddr,
-			   uint64_t iova,
-			   uint64_t size)
-{
-	struct fslmc_vfio_group *group;
-	struct vfio_iommu_type1_dma_map dma_map = {
-		.argsz = sizeof(dma_map),
-		.flags = VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE,
-	};
-
-	dma_map.vaddr = vaddr;
-	dma_map.size = size;
-	dma_map.iova = iova;
-
-	/* SET DMA MAP for IOMMU */
-	group = &vfio_groups[0];
-	if (ioctl(group->container->fd, VFIO_IOMMU_MAP_DMA, &dma_map)) {
-		FSLMC_VFIO_LOG(ERR, "VFIO_IOMMU_MAP_DMA (errno = %d)", errno);
-		return -1;
-	}
-	return 0;
-}
-
 int rte_fslmc_vfio_dmamap(void)
 {
 	int ret;
diff --git a/drivers/bus/fslmc/fslmc_vfio.h b/drivers/bus/fslmc/fslmc_vfio.h
index d1259e1..0aff9b1 100644
--- a/drivers/bus/fslmc/fslmc_vfio.h
+++ b/drivers/bus/fslmc/fslmc_vfio.h
@@ -85,11 +85,6 @@ struct rte_dpaa2_object {
 	rte_fslmc_obj_create_t create;
 };
 
-int vfio_dmamap_mem_region(
-	uint64_t vaddr,
-	uint64_t iova,
-	uint64_t size);
-
 int rte_dpaa2_intr_enable(struct rte_intr_handle *intr_handle,
 			  uint32_t index);
 
diff --git a/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c b/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c
index 88dd2e9..fcc068b 100644
--- a/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c
+++ b/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c
@@ -470,16 +470,6 @@ dpaa2_create_dpio_device(struct fslmc_vfio_device *vdev,
 				PROT_WRITE | PROT_READ, MAP_SHARED,
 				vfio_dev_fd, reg_info.offset);
 
-	/* Create Mapping for QBMan Cache Enabled area. This is a fix for
-	 * SMMU fault for DQRR statshing transaction.
-	 */
-	if (vfio_dmamap_mem_region(dpio_dev->qbman_portal_ce_paddr,
-				   reg_info.offset, reg_info.size)) {
-		PMD_INIT_LOG(ERR, "DMAMAP for Portal CE area failed.\n");
-		rte_free(dpio_dev);
-		return -1;
-	}
-
 	reg_info.index = 1;
 	if (ioctl(vfio_dev_fd, VFIO_DEVICE_GET_REGION_INFO, &reg_info)) {
 		PMD_INIT_LOG(ERR, "vfio: error getting region info\n");
-- 
2.7.4