[PATCH v3 11/22] event/cnxk: add CN20K event port preschedule

[<pbhagavatula@marvell.com>]

From: Pavan Nikhilesh <pbhagavatula@marvell.com>

Add CN20K event port preschedule modify and preschedule
functions.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
---
 drivers/common/cnxk/hw/ssow.h       |  1 +
 drivers/event/cnxk/cn20k_eventdev.c |  2 ++
 drivers/event/cnxk/cn20k_worker.c   | 30 +++++++++++++++++++++++++++++
 drivers/event/cnxk/cn20k_worker.h   |  3 +++
 4 files changed, 36 insertions(+)

diff --git a/drivers/common/cnxk/hw/ssow.h b/drivers/common/cnxk/hw/ssow.h
index c146a8c3ef..ec6bd7896b 100644
--- a/drivers/common/cnxk/hw/ssow.h
+++ b/drivers/common/cnxk/hw/ssow.h
@@ -37,6 +37,7 @@
 #define SSOW_LF_GWS_PRF_WQE1	     (0x448ull) /* [CN10K, .) */
 #define SSOW_LF_GWS_OP_GET_WORK0     (0x600ull)
 #define SSOW_LF_GWS_OP_GET_WORK1     (0x608ull) /* [CN10K, .) */
+#define SSOW_LF_GWS_OP_PRF_GETWORK   (0x610ull) /* [CN20K, .) */
 #define SSOW_LF_GWS_OP_SWTAG_FLUSH   (0x800ull)
 #define SSOW_LF_GWS_OP_SWTAG_UNTAG   (0x810ull)
 #define SSOW_LF_GWS_OP_SWTP_CLR	     (0x820ull)
diff --git a/drivers/event/cnxk/cn20k_eventdev.c b/drivers/event/cnxk/cn20k_eventdev.c
index 9b7ccf690c..34636c77ce 100644
--- a/drivers/event/cnxk/cn20k_eventdev.c
+++ b/drivers/event/cnxk/cn20k_eventdev.c
@@ -124,6 +124,8 @@ cn20k_sso_fp_fns_set(struct rte_eventdev *event_dev)
 		event_dev->dequeue_burst = cn20k_sso_hws_tmo_deq_burst;
 
 	event_dev->profile_switch = cn20k_sso_hws_profile_switch;
+	event_dev->preschedule_modify = cn20k_sso_hws_preschedule_modify;
+	event_dev->preschedule = cn20k_sso_hws_preschedule;
 #else
 	RTE_SET_USED(event_dev);
 #endif
diff --git a/drivers/event/cnxk/cn20k_worker.c b/drivers/event/cnxk/cn20k_worker.c
index 2c723523d2..ebfe863bc5 100644
--- a/drivers/event/cnxk/cn20k_worker.c
+++ b/drivers/event/cnxk/cn20k_worker.c
@@ -394,6 +394,36 @@ cn20k_sso_hws_profile_switch(void *port, uint8_t profile)
 	return 0;
 }
 
+int __rte_hot
+cn20k_sso_hws_preschedule_modify(void *port, enum rte_event_dev_preschedule_type type)
+{
+	struct cn20k_sso_hws *ws = port;
+
+	ws->gw_wdata &= ~(BIT(19) | BIT(20));
+	switch (type) {
+	default:
+	case RTE_EVENT_PRESCHEDULE_NONE:
+		break;
+	case RTE_EVENT_PRESCHEDULE:
+		ws->gw_wdata |= BIT(19);
+		break;
+	case RTE_EVENT_PRESCHEDULE_ADAPTIVE:
+		ws->gw_wdata |= BIT(19) | BIT(20);
+		break;
+	}
+
+	return 0;
+}
+
+void __rte_hot
+cn20k_sso_hws_preschedule(void *port, enum rte_event_dev_preschedule_type type)
+{
+	struct cn20k_sso_hws *ws = port;
+
+	RTE_SET_USED(type);
+	plt_write64(ws->gw_wdata, ws->base + SSOW_LF_GWS_OP_PRF_GETWORK);
+}
+
 uint16_t __rte_hot
 cn20k_sso_hws_deq(void *port, struct rte_event *ev, uint64_t timeout_ticks)
 {
diff --git a/drivers/event/cnxk/cn20k_worker.h b/drivers/event/cnxk/cn20k_worker.h
index 447f28f0f2..dd8b72bc53 100644
--- a/drivers/event/cnxk/cn20k_worker.h
+++ b/drivers/event/cnxk/cn20k_worker.h
@@ -146,6 +146,9 @@ uint16_t __rte_hot cn20k_sso_hws_enq_new_burst(void *port, const struct rte_even
 uint16_t __rte_hot cn20k_sso_hws_enq_fwd_burst(void *port, const struct rte_event ev[],
 					       uint16_t nb_events);
 int __rte_hot cn20k_sso_hws_profile_switch(void *port, uint8_t profile);
+int __rte_hot cn20k_sso_hws_preschedule_modify(void *port,
+					       enum rte_event_dev_preschedule_type type);
+void __rte_hot cn20k_sso_hws_preschedule(void *port, enum rte_event_dev_preschedule_type type);
 
 uint16_t __rte_hot cn20k_sso_hws_deq(void *port, struct rte_event *ev, uint64_t timeout_ticks);
 uint16_t __rte_hot cn20k_sso_hws_deq_burst(void *port, struct rte_event ev[], uint16_t nb_events,
-- 
2.25.1