Add new API k3_ringacc_request_rings_pair() to request pair of rings at once, as in the most case Rings are used with DMA channels which required to request pair of rings - one to feed DMA with descriptors (TX/RX FDQ) and one to receive completions (RX/TX CQ). This will allow to simplify Ringacc API users.
Signed-off-by: Vignesh Raghavendra vigneshr@ti.com --- drivers/soc/ti/k3-navss-ringacc.c | 23 +++++++++++++++++++++++ include/linux/soc/ti/k3-navss-ringacc.h | 4 ++++ 2 files changed, 27 insertions(+)
diff --git a/drivers/soc/ti/k3-navss-ringacc.c b/drivers/soc/ti/k3-navss-ringacc.c index f31ffaf5ae..81de75af20 100644 --- a/drivers/soc/ti/k3-navss-ringacc.c +++ b/drivers/soc/ti/k3-navss-ringacc.c @@ -321,6 +321,29 @@ error: return NULL; }
+int k3_nav_ringacc_request_rings_pair(struct k3_nav_ringacc *ringacc, + int fwd_id, int compl_id, + struct k3_nav_ring **fwd_ring, + struct k3_nav_ring **compl_ring) +{ + int ret = 0; + + if (!fwd_ring || !compl_ring) + return -EINVAL; + + *fwd_ring = k3_nav_ringacc_request_ring(ringacc, fwd_id, 0); + if (!(*fwd_ring)) + return -ENODEV; + + *compl_ring = k3_nav_ringacc_request_ring(ringacc, compl_id, 0); + if (!(*compl_ring)) { + k3_nav_ringacc_ring_free(*fwd_ring); + ret = -ENODEV; + } + + return ret; +} + static void k3_ringacc_ring_reset_sci(struct k3_nav_ring *ring) { struct k3_nav_ringacc *ringacc = ring->parent; diff --git a/include/linux/soc/ti/k3-navss-ringacc.h b/include/linux/soc/ti/k3-navss-ringacc.h index 7b027f8bd4..9176277ff0 100644 --- a/include/linux/soc/ti/k3-navss-ringacc.h +++ b/include/linux/soc/ti/k3-navss-ringacc.h @@ -100,6 +100,10 @@ struct k3_nav_ring_cfg { struct k3_nav_ring *k3_nav_ringacc_request_ring(struct k3_nav_ringacc *ringacc, int id, u32 flags);
+int k3_nav_ringacc_request_rings_pair(struct k3_nav_ringacc *ringacc, + int fwd_id, int compl_id, + struct k3_nav_ring **fwd_ring, + struct k3_nav_ring **compl_ring); /** * k3_nav_ringacc_get_dev - get pointer on RA device * @ringacc: pointer on RA