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Commit ab2ed037 authored by Yeshwanth Sriram Guntuka's avatar Yeshwanth Sriram Guntuka Committed by snandini
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qcacmn: Create IPA SMMU maps for host replenished bufs 

Buffers replenished post processing entries in the
REO2TCL ring do not have ipa smmu mappings created
when RX_PREALLOC_BUFFER_POOL feature is disabled.
This will result in SMMU fault when IPA HW accesses
such replenished buffers.

Fix is to create IPA SMMU mapping for replenished buffers
when RX_PREALLOC_BUFFER_POOL feature is disabled as well.

Change-Id: I0fe611a1279b91a3e45bc269348e05de9015d596
CRs-Fixed: 2915686
parent 3c74f3ed

dp/wifi3.0/dp_rx.c

+5 −0
Original line number Diff line number Diff line
@@ -236,6 +236,11 @@ dp_pdev_nbuf_alloc_and_map_replenish(struct dp_soc *dp_soc, 
	nbuf_frag_info_t->paddr =

		qdf_nbuf_get_frag_paddr((nbuf_frag_info_t->virt_addr).nbuf, 0);



	dp_ipa_handle_rx_buf_smmu_mapping(dp_soc,

			       (qdf_nbuf_t)((nbuf_frag_info_t->virt_addr).nbuf),

			       rx_desc_pool->buf_size,

			       true);



	ret = check_x86_paddr(dp_soc, &((nbuf_frag_info_t->virt_addr).nbuf),

			      &nbuf_frag_info_t->paddr,

			      rx_desc_pool);

dp/wifi3.0/dp_rx_buffer_pool.c

+1 −10
Original line number Diff line number Diff line
@@ -260,21 +260,12 @@ dp_rx_buffer_pool_nbuf_map(struct dp_soc *soc, 
{

	QDF_STATUS ret = QDF_STATUS_SUCCESS;



	if (!QDF_NBUF_CB_PADDR((nbuf_frag_info_t->virt_addr).nbuf)) {

	if (!QDF_NBUF_CB_PADDR((nbuf_frag_info_t->virt_addr).nbuf))

		ret = qdf_nbuf_map_nbytes_single(soc->osdev,

						 (nbuf_frag_info_t->virt_addr).nbuf,

						 QDF_DMA_FROM_DEVICE,

						 rx_desc_pool->buf_size);



		if (qdf_unlikely(QDF_IS_STATUS_ERROR(ret)))

			return ret;

	}



	dp_ipa_handle_rx_buf_smmu_mapping(soc,

					  (qdf_nbuf_t)((nbuf_frag_info_t->virt_addr).nbuf),

					  rx_desc_pool->buf_size,

					  true);



	return ret;

}