From: Balasubramanian Manoharan <[email protected]>

Implements odp_schedule_order_unlock_lock() api. This api combines schedule
order unlock and lock into a single api for performance optimization in HW.

Signed-off-by: Balasubramanian Manoharan <[email protected]>
---
/** Email created from pull request 160 (bala-manoharan:api_sched_order_lock)
 ** https://github.com/Linaro/odp/pull/160
 ** Patch: https://github.com/Linaro/odp/pull/160.patch
 ** Base sha: 6b6253c30f88c80bf632436ff06c1b000860a2f1
 ** Merge commit sha: 438a3bab5df9c05dc06f0b4e4b22c0a7db0864fd
 **/
 platform/linux-generic/include/odp_schedule_if.h |  3 +++
 platform/linux-generic/odp_schedule.c            | 10 +++++++++-
 platform/linux-generic/odp_schedule_if.c         |  5 +++++
 platform/linux-generic/odp_schedule_iquery.c     |  3 ++-
 platform/linux-generic/odp_schedule_scalable.c   |  8 ++++++++
 platform/linux-generic/odp_schedule_sp.c         | 10 +++++++++-
 6 files changed, 36 insertions(+), 3 deletions(-)

diff --git a/platform/linux-generic/include/odp_schedule_if.h 
b/platform/linux-generic/include/odp_schedule_if.h
index 3815a27e6..2384f15b3 100644
--- a/platform/linux-generic/include/odp_schedule_if.h
+++ b/platform/linux-generic/include/odp_schedule_if.h
@@ -34,6 +34,7 @@ typedef int (*schedule_init_local_fn_t)(void);
 typedef int (*schedule_term_local_fn_t)(void);
 typedef void (*schedule_order_lock_fn_t)(void);
 typedef void (*schedule_order_unlock_fn_t)(void);
+typedef void (*schedule_order_unlock_lock_fn_t)(void);
 typedef uint32_t (*schedule_max_ordered_locks_fn_t)(void);
 typedef void (*schedule_save_context_fn_t)(uint32_t queue_index);
 
@@ -53,6 +54,7 @@ typedef struct schedule_fn_t {
        schedule_term_local_fn_t    term_local;
        schedule_order_lock_fn_t    order_lock;
        schedule_order_unlock_fn_t  order_unlock;
+       schedule_order_unlock_lock_fn_t  order_unlock_lock;
        schedule_max_ordered_locks_fn_t max_ordered_locks;
 
        /* Called only when status_sync is set */
@@ -95,6 +97,7 @@ typedef struct {
                                   odp_schedule_group_info_t *);
        void (*schedule_order_lock)(uint32_t);
        void (*schedule_order_unlock)(uint32_t);
+       void (*schedule_order_unlock_lock)(uint32_t, uint32_t);
 
 } schedule_api_t;
 
diff --git a/platform/linux-generic/odp_schedule.c 
b/platform/linux-generic/odp_schedule.c
index e6fbd5c65..1071f83de 100644
--- a/platform/linux-generic/odp_schedule.c
+++ b/platform/linux-generic/odp_schedule.c
@@ -1144,6 +1144,13 @@ static void schedule_order_unlock(uint32_t lock_index)
        odp_atomic_store_rel_u64(ord_lock, sched_local.ordered.ctx + 1);
 }
 
+static void schedule_order_unlock_lock(uint32_t unlock_index,
+                                      uint32_t lock_index)
+{
+       schedule_order_unlock(unlock_index);
+       schedule_order_lock(lock_index);
+}
+
 static void schedule_pause(void)
 {
        sched_local.pause = 1;
@@ -1429,5 +1436,6 @@ const schedule_api_t schedule_default_api = {
        .schedule_group_thrmask   = schedule_group_thrmask,
        .schedule_group_info      = schedule_group_info,
        .schedule_order_lock      = schedule_order_lock,
-       .schedule_order_unlock    = schedule_order_unlock
+       .schedule_order_unlock    = schedule_order_unlock,
+       .schedule_order_unlock_lock    = schedule_order_unlock_lock
 };
diff --git a/platform/linux-generic/odp_schedule_if.c 
b/platform/linux-generic/odp_schedule_if.c
index ff664420f..08ca813a9 100644
--- a/platform/linux-generic/odp_schedule_if.c
+++ b/platform/linux-generic/odp_schedule_if.c
@@ -129,3 +129,8 @@ void odp_schedule_order_unlock(uint32_t lock_index)
 {
        return sched_api->schedule_order_unlock(lock_index);
 }
+
+void odp_schedule_order_unlock_lock(uint32_t unlock_index, uint32_t lock_index)
+{
+       sched_api->schedule_order_unlock_lock(unlock_index, lock_index);
+}
diff --git a/platform/linux-generic/odp_schedule_iquery.c 
b/platform/linux-generic/odp_schedule_iquery.c
index 850c5d8b7..e6be5d3c7 100644
--- a/platform/linux-generic/odp_schedule_iquery.c
+++ b/platform/linux-generic/odp_schedule_iquery.c
@@ -1375,7 +1375,8 @@ const schedule_api_t schedule_iquery_api = {
        .schedule_group_thrmask   = schedule_group_thrmask,
        .schedule_group_info      = schedule_group_info,
        .schedule_order_lock      = schedule_order_lock,
-       .schedule_order_unlock    = schedule_order_unlock
+       .schedule_order_unlock    = schedule_order_unlock,
+       .schedule_order_unlock_lock    = schedule_order_unlock_lock
 };
 
 static void thread_set_interest(sched_thread_local_t *thread,
diff --git a/platform/linux-generic/odp_schedule_scalable.c 
b/platform/linux-generic/odp_schedule_scalable.c
index 86018b0a2..37be471c6 100644
--- a/platform/linux-generic/odp_schedule_scalable.c
+++ b/platform/linux-generic/odp_schedule_scalable.c
@@ -1028,6 +1028,13 @@ static void schedule_order_unlock(uint32_t lock_index)
        rctx->olock_flags |= 1U << lock_index;
 }
 
+static void schedule_order_unlock_lock(uint32_t unlock_index,
+                                      uint32_t lock_index)
+{
+       schedule_order_unlock(unlock_index);
+       schedule_order_lock(lock_index);
+}
+
 static void schedule_release_atomic(void)
 {
        sched_scalable_thread_state_t *ts;
@@ -1978,4 +1985,5 @@ const schedule_api_t schedule_scalable_api = {
        .schedule_group_info            = schedule_group_info,
        .schedule_order_lock            = schedule_order_lock,
        .schedule_order_unlock          = schedule_order_unlock,
+       .schedule_order_unlock_lock     = schedule_order_unlock_lock,
 };
diff --git a/platform/linux-generic/odp_schedule_sp.c 
b/platform/linux-generic/odp_schedule_sp.c
index 62efe1bb8..9db587e26 100644
--- a/platform/linux-generic/odp_schedule_sp.c
+++ b/platform/linux-generic/odp_schedule_sp.c
@@ -819,6 +819,13 @@ static void schedule_order_unlock(uint32_t lock_index)
        (void)lock_index;
 }
 
+static void schedule_order_unlock_lock(uint32_t unlock_index,
+                                      uint32_t lock_index)
+{
+       (void)unlock_index;
+       (void)lock_index;
+}
+
 static void order_lock(void)
 {
 }
@@ -868,5 +875,6 @@ const schedule_api_t schedule_sp_api = {
        .schedule_group_thrmask   = schedule_group_thrmask,
        .schedule_group_info      = schedule_group_info,
        .schedule_order_lock      = schedule_order_lock,
-       .schedule_order_unlock    = schedule_order_unlock
+       .schedule_order_unlock    = schedule_order_unlock,
+       .schedule_order_unlock_lock     = schedule_order_unlock_lock
 };

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