diff options
| author | Vignesh Raghavendra <vigneshr@ti.com> | 2023-01-08 21:18:50 +0530 |
|---|---|---|
| committer | Praneeth Bajjuri <praneeth@ti.com> | 2023-01-11 18:05:04 -0600 |
| commit | 99b6820efd27ef7ba8c293fe5da775b2cdd65421 (patch) | |
| tree | 682588e9f28ac0907d6588bd5b8487536249f0be | |
| parent | 4027f66463572f1ec2629e10cb5698f01abc88e4 (diff) | |
dmaengine: ti: k3-udma: Prioritize CSI RX traffic as RT
Mark BCDMA CSI RX as real-time traffic using OrderID 8.This ensures CSI
traffic takes dedicated RT path towards DDR ensuring proper priority when
under competing system load.
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Tested-by: Jai Luthra <j-luthra@ti.com>
| -rw-r--r-- | drivers/dma/ti/k3-udma.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c index 275957cc2c60..0d117c1c49fe 100644 --- a/drivers/dma/ti/k3-udma.c +++ b/drivers/dma/ti/k3-udma.c @@ -136,6 +136,7 @@ struct udma_match_data { u32 statictr_z_mask; u8 burst_size[3]; struct udma_soc_data *soc_data; + u8 order_id; }; struct udma_soc_data { @@ -2112,6 +2113,7 @@ static int udma_tisci_rx_channel_config(struct udma_chan *uc) static int bcdma_tisci_rx_channel_config(struct udma_chan *uc) { struct udma_dev *ud = uc->ud; + const struct udma_match_data *match_data = ud->match_data; struct udma_tisci_rm *tisci_rm = &ud->tisci_rm; const struct ti_sci_rm_udmap_ops *tisci_ops = tisci_rm->tisci_udmap_ops; struct udma_rchan *rchan = uc->rchan; @@ -2122,6 +2124,11 @@ static int bcdma_tisci_rx_channel_config(struct udma_chan *uc) req_rx.nav_id = tisci_rm->tisci_dev_id; req_rx.index = rchan->id; + if (match_data->order_id) { + req_rx.valid_params |= TI_SCI_MSG_VALUE_RM_UDMAP_CH_ORDER_ID_VALID; + req_rx.rx_orderid = match_data->order_id; + } + ret = tisci_ops->rx_ch_cfg(tisci_rm->tisci, &req_rx); if (ret) dev_err(ud->dev, "rchan%d cfg failed %d\n", rchan->id, ret); @@ -4318,6 +4325,7 @@ static struct udma_match_data am62a_bcdma_csirx_data = { 0, /* No UH Channels */ }, .soc_data = &am62a_dmss_csi_soc_data, + .order_id = 8, }; static struct udma_match_data am64_bcdma_data = { |