A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-10 22:40:54 -04:00
Code Issues Projects Releases Packages Wiki Activity

qcacmn: Fix IPA SMMU mapping issue for RX buffers from refill pool

Browse source 
Refill pool buffer IPA mapping is done during allocation time,
but in some cases where IPA pipes enable/disable happens in between
previous mapping is not valid which is causing SMMU fault from IPA module.

Fix this by moving IPA mapping before replenishing buffers to RXDMA ring.

Change-Id: Ie6c5eb791b6f832f311a6e89489aebef37094d8f
CRS-Fixed: 2901819
This commit is contained in:
Karthik Kantamneni 2021-03-22 11:09:24 +05:30 • committed by Gerrit - the friendly Code Review server
commit 883d041de6
1 changed files with 5 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

19
dp/wifi3.0/dp_rx_buffer_pool.c
View file

@ -166,9 +166,6 @@ void dp_rx_refill_buff_pool_enqueue(struct dp_soc *soc)
continue;
}
dp_ipa_handle_rx_buf_smmu_mapping(soc, nbuf,
rx_desc_pool->buf_size,
true);
DP_RX_LIST_APPEND(nbuf_head, nbuf_tail, nbuf);
count++;
}
@ -271,13 +268,13 @@ dp_rx_buffer_pool_nbuf_map(struct dp_soc *soc,
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);
}
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;
}
@ -316,9 +313,6 @@ static void dp_rx_refill_buff_pool_init(struct dp_soc *soc, u8 mac_id)
continue;
}
dp_ipa_handle_rx_buf_smmu_mapping(soc, nbuf,
rx_desc_pool->buf_size,
true);
DP_RX_LIST_APPEND(buff_pool->buf_head,
buff_pool->buf_tail, nbuf);
buff_pool->bufq_len++;
@ -380,9 +374,6 @@ static void dp_rx_refill_buff_pool_deinit(struct dp_soc *soc, u8 mac_id)
buff_pool->in_rx_refill_lock = true;
while ((nbuf = dp_rx_refill_buff_pool_dequeue_nbuf(soc))) {
dp_ipa_handle_rx_buf_smmu_mapping(soc, nbuf,
rx_desc_pool->buf_size,
false);
qdf_nbuf_unmap_nbytes_single(soc->osdev, nbuf,
QDF_DMA_BIDIRECTIONAL,
rx_desc_pool->buf_size);