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 2026-11-09 20:31:13 -05:00
Code Issues Projects Releases Packages Wiki Activity

qcacld-3.0: Map as QDF_DMA_BIDIRECTIONAL for PMF tx frame

Browse source 
Some target which support sending mgmt frame based on htt would DMA
write this PMF tx frame buffer, it may cause smmu check permission
fault, set a flag to do special DMA map.

Change-Id: I3686be211374d2c316726fa3248dedce87c3faed
CRs-Fixed: 2332329
This commit is contained in:
Will Huang 2018-10-19 14:04:41 +08:00 • committed by nshrivas
commit a47dca3872
2 changed files with 11 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

5
core/dp/htt/htt_tx.c
View file

@ -1732,6 +1732,7 @@ htt_tx_desc_init(htt_pdev_handle pdev,
bool desc_ext_required = (type != EXT_HEADER_NOT_PRESENT);
int channel_freq;
void *qdf_ctx = cds_get_context(QDF_MODULE_ID_QDF_DEVICE);
qdf_dma_dir_t dir;
QDF_STATUS status;
if (qdf_unlikely(!qdf_ctx)) {
@ -1861,7 +1862,9 @@ htt_tx_desc_init(htt_pdev_handle pdev,
0);
if (QDF_NBUF_CB_PADDR(msdu) == 0) {
status = qdf_nbuf_map_single(qdf_ctx, msdu, QDF_DMA_TO_DEVICE);
dir = QDF_NBUF_CB_TX_DMA_BI_MAP(msdu) ?
QDF_DMA_BIDIRECTIONAL : QDF_DMA_TO_DEVICE;
status = qdf_nbuf_map_single(qdf_ctx, msdu, dir);
if (qdf_unlikely(status != QDF_STATUS_SUCCESS)) {
QDF_TRACE(QDF_MODULE_ID_TXRX, QDF_TRACE_LEVEL_ERROR,
"%s: nbuf map failed", __func__);

7
core/wma/src/wma_data.c
View file

@ -2549,6 +2549,13 @@ QDF_STATUS wma_tx_packet(void *wma_context, void *tx_frame, uint16_t frmLen,
frmLen = newFrmLen;
pFc = (tpSirMacFrameCtl) (qdf_nbuf_data(tx_frame));
}
/*
* Some target which support sending mgmt frame based on htt
* would DMA write this PMF tx frame buffer, it may cause smmu
* check permission fault, set a flag to do bi-direction DMA
* map, normal tx unmap is enough for this case.
*/
QDF_NBUF_CB_TX_DMA_BI_MAP((qdf_nbuf_t)tx_frame) = 1;
}
#endif /* WLAN_FEATURE_11W */
mHdr = (tpSirMacMgmtHdr)qdf_nbuf_data(tx_frame);