video: tegra: host: nvdla, pva: add task information to fences

For NSys, we're interested in having detailed information on what task
waits on a particular prefence or requests a particular postfence.
This is implemented by adding two extra fields, 'task_syncpt_id' and
'task_syncpt_thresh' to 'struct nvhost_task_fence', to record the task
this particular fence is associated with.

To avoid race conditon in pva_submit (similar to what was fixed in
0c2065fd669926536f79fd9e8ec33f33cbdcae2e), PVA task memory management
is changed to use simple kref-based scheme, much like it's done in DLA.

Finally, this patch renames syncpoint fields of 'task_fence' to 'syncpt_id'
and 'syncpt_thresh' to match the same field names in other events, which
is intended to simplify Python scripting.

JIRA DTSP-1662
JIRA DTSP-682
Bug 2568514

Signed-off-by: Dmitry Antipov <dantipov@nvidia.com>
Change-Id: I4c55efcae15eb80a0d950882d6ff6e5ac706ab20
Reviewed-on: https://git-master.nvidia.com/r/1978175
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
Reviewed-by: Shridhar Rasal <srasal@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2099982
Reviewed-by: Mitch Harwell <mharwell@nvidia.com>
Tested-by: Mitch Harwell <mharwell@nvidia.com>

1 files changed, 17 insertions, 9 deletions

diff --git a/include/linux/nvhost.h b/include/linux/nvhost.h
index 78c95e5fc..2c01ffdcc 100644
--- a/include/linux/nvhost.h
+++ b/include/linux/nvhost.h
@@ -3,7 +3,7 @@
  *
  * Tegra graphics host driver
  *
- * Copyright (c) 2009-2018, NVIDIA Corporation. All rights reserved.
+ * Copyright (c) 2009-2019, NVIDIA Corporation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -49,6 +49,7 @@ struct nvhost_as_moduleops;
 struct nvhost_ctrl_sync_fence_info;
 struct nvhost_sync_timeline;
 struct nvhost_sync_pt;
+enum nvdev_fence_kind;
 struct nvdev_fence;
 struct sync_pt;
 
@@ -654,10 +655,14 @@ static inline void nvhost_eventlib_log_submit(struct platform_device *pdev,
                                               u64 timestamp)
 {
 }
-static inline void nvhost_eventlib_log_fence(struct platform_device *pdev,
-                                             u32 kind,
-                                             struct nvdev_fence *fence,
-                                             u64 timestamp)
+
+static inline void nvhost_eventlib_log_fences(struct platform_device *pdev,
+                                              u32 task_syncpt_id,
+                                              u32 task_syncpt_thresh,
+                                              struct nvdev_fence *fences,
+                                              u8 num_fences,
+                                              enum nvdev_fence_kind kind,
+                                              u64 timestamp)
 {
 }
 #else
@@ -772,10 +777,13 @@ void nvhost_eventlib_log_submit(struct platform_device *pdev,
                                 u32 syncpt_thresh,
                                 u64 timestamp);
 
-void nvhost_eventlib_log_fence(struct platform_device *pdev,
-                               u32 kind,
-                               struct nvdev_fence *fence,
-                               u64 timestamp);
+void nvhost_eventlib_log_fences(struct platform_device *pdev,
+                                u32 task_syncpt_id,
+                                u32 task_syncpt_thresh,
+                                struct nvdev_fence *fences,
+                                u8 num_fences,
+                                enum nvdev_fence_kind kind,
+                                u64 timestamp);
 
 /* public host1x interrupt management APIs */
 int nvhost_intr_register_notifier(struct platform_device *pdev,