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From 88c448421d08af06b2a6c38a6e41b7f01f6ed55b Mon Sep 17 00:00:00 2001
From: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Date: Tue, 15 May 2018 14:12:21 -0400
Subject: [PATCH 4444/5725] drm/amdgpu: Skip drm_sched_entity related ops for
 KIQ ring.

Following change 75fbed2 we never initialize or use the GPU
scheduler for KIQ and hence we need to skip KIQ ring when iterating
amdgpu_ctx's scheduler entites.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
index eb82bbf..51fb09f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
@@ -190,9 +190,13 @@ static void amdgpu_ctx_do_release(struct kref *ref)
 
 	ctx = container_of(ref, struct amdgpu_ctx, refcount);
 
-	for (i = 0; i < ctx->adev->num_rings; i++)
+	for (i = 0; i < ctx->adev->num_rings; i++) {
+		if (ctx->adev->rings[i] == &ctx->adev->gfx.kiq.ring)
+			continue;
+
 		drm_sched_entity_fini(&ctx->adev->rings[i]->sched,
 			&ctx->rings[i].entity);
+	}
 
 	amdgpu_ctx_fini(ref);
 }
@@ -469,12 +473,17 @@ void amdgpu_ctx_mgr_entity_fini(struct amdgpu_ctx_mgr *mgr)
 		if (!ctx->adev)
 			return;
 
-		for (i = 0; i < ctx->adev->num_rings; i++)
+		for (i = 0; i < ctx->adev->num_rings; i++) {
+
+			if (ctx->adev->rings[i] == &ctx->adev->gfx.kiq.ring)
+				continue;
+
 			if (kref_read(&ctx->refcount) == 1)
 				drm_sched_entity_do_release(&ctx->adev->rings[i]->sched,
 						  &ctx->rings[i].entity);
 			else
 				DRM_ERROR("ctx %p is still alive\n", ctx);
+		}
 	}
 }
 
@@ -491,12 +500,17 @@ void amdgpu_ctx_mgr_entity_cleanup(struct amdgpu_ctx_mgr *mgr)
 		if (!ctx->adev)
 			return;
 
-		for (i = 0; i < ctx->adev->num_rings; i++)
+		for (i = 0; i < ctx->adev->num_rings; i++) {
+
+			if (ctx->adev->rings[i] == &ctx->adev->gfx.kiq.ring)
+				continue;
+
 			if (kref_read(&ctx->refcount) == 1)
 				drm_sched_entity_cleanup(&ctx->adev->rings[i]->sched,
 					&ctx->rings[i].entity);
 			else
 				DRM_ERROR("ctx %p is still alive\n", ctx);
+		}
 	}
 }
 
-- 
2.7.4