[PATCH v3 09/11] drm/xe: Add exec queue active vfunc

[Matthew Brost <matthew.brost@intel.com>]

If an exec queue is inactive (e.g., not registered or scheduling is
disabled), TLB invalidations are not issued for that queue. Add a
virtual function to determine the active state, which TLB invalidation
logic can hook into.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
---
 drivers/gpu/drm/xe/xe_exec_queue_types.h | 2 ++
 drivers/gpu/drm/xe/xe_execlist.c         | 7 +++++++
 drivers/gpu/drm/xe/xe_guc_submit.c       | 6 ++++++
 3 files changed, 15 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_exec_queue_types.h b/drivers/gpu/drm/xe/xe_exec_queue_types.h
index d3e2789cf5bc..9cca558c5809 100644
--- a/drivers/gpu/drm/xe/xe_exec_queue_types.h
+++ b/drivers/gpu/drm/xe/xe_exec_queue_types.h
@@ -298,6 +298,8 @@ struct xe_exec_queue_ops {
 	void (*resume)(struct xe_exec_queue *q);
 	/** @reset_status: check exec queue reset status */
 	bool (*reset_status)(struct xe_exec_queue *q);
+	/** @active: check exec queue is active */
+	bool (*active)(struct xe_exec_queue *q);
 };
 
 #endif
diff --git a/drivers/gpu/drm/xe/xe_execlist.c b/drivers/gpu/drm/xe/xe_execlist.c
index 46c17a18a3f4..e4a2674f48c7 100644
--- a/drivers/gpu/drm/xe/xe_execlist.c
+++ b/drivers/gpu/drm/xe/xe_execlist.c
@@ -469,6 +469,12 @@ static bool execlist_exec_queue_reset_status(struct xe_exec_queue *q)
 	return false;
 }
 
+static bool execlist_exec_queue_active(struct xe_exec_queue *q)
+{
+	/* NIY */
+	return false;
+}
+
 static const struct xe_exec_queue_ops execlist_exec_queue_ops = {
 	.init = execlist_exec_queue_init,
 	.kill = execlist_exec_queue_kill,
@@ -481,6 +487,7 @@ static const struct xe_exec_queue_ops execlist_exec_queue_ops = {
 	.suspend_wait = execlist_exec_queue_suspend_wait,
 	.resume = execlist_exec_queue_resume,
 	.reset_status = execlist_exec_queue_reset_status,
+	.active = execlist_exec_queue_active,
 };
 
 int xe_execlist_init(struct xe_gt *gt)
diff --git a/drivers/gpu/drm/xe/xe_guc_submit.c b/drivers/gpu/drm/xe/xe_guc_submit.c
index be8fa76baf1d..19282e5ca897 100644
--- a/drivers/gpu/drm/xe/xe_guc_submit.c
+++ b/drivers/gpu/drm/xe/xe_guc_submit.c
@@ -2203,6 +2203,11 @@ static bool guc_exec_queue_reset_status(struct xe_exec_queue *q)
 	return exec_queue_reset(q) || exec_queue_killed_or_banned_or_wedged(q);
 }
 
+static bool guc_exec_queue_active(struct xe_exec_queue *q)
+{
+	return exec_queue_enabled(q) && !exec_queue_pending_disable(q);
+}
+
 /*
  * All of these functions are an abstraction layer which other parts of Xe can
  * use to trap into the GuC backend. All of these functions, aside from init,
@@ -2222,6 +2227,7 @@ static const struct xe_exec_queue_ops guc_exec_queue_ops = {
 	.suspend_wait = guc_exec_queue_suspend_wait,
 	.resume = guc_exec_queue_resume,
 	.reset_status = guc_exec_queue_reset_status,
+	.active = guc_exec_queue_active,
 };
 
 static void guc_exec_queue_stop(struct xe_guc *guc, struct xe_exec_queue *q)
-- 
2.34.1