[PATCH 4/6] drm/i915/selftest: Cope with not having an RCS engine

[John.C.Harrison@Intel.com]

From: John Harrison <John.C.Harrison@Intel.com>

It is no longer guaranteed that there will always be an RCS engine.
So, use the helper function for finding the first available engine that
can be used for general purpose selftets.

Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
---
 drivers/gpu/drm/i915/gt/selftest_hangcheck.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
index 6493265d5f642..7f3bb1d34dfbf 100644
--- a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
+++ b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
@@ -1302,13 +1302,15 @@ static int igt_reset_wait(void *arg)
 {
 	struct intel_gt *gt = arg;
 	struct i915_gpu_error *global = &gt->i915->gpu_error;
-	struct intel_engine_cs *engine = gt->engine[RCS0];
+	struct intel_engine_cs *engine;
 	struct i915_request *rq;
 	unsigned int reset_count;
 	struct hang h;
 	long timeout;
 	int err;
 
+	engine = intel_selftest_find_any_engine(gt);
+
 	if (!engine || !intel_engine_can_store_dword(engine))
 		return 0;
 
@@ -1432,7 +1434,7 @@ static int __igt_reset_evict_vma(struct intel_gt *gt,
 				 int (*fn)(void *),
 				 unsigned int flags)
 {
-	struct intel_engine_cs *engine = gt->engine[RCS0];
+	struct intel_engine_cs *engine;
 	struct drm_i915_gem_object *obj;
 	struct task_struct *tsk = NULL;
 	struct i915_request *rq;
@@ -1444,6 +1446,8 @@ static int __igt_reset_evict_vma(struct intel_gt *gt,
 	if (!gt->ggtt->num_fences && flags & EXEC_OBJECT_NEEDS_FENCE)
 		return 0;
 
+	engine = intel_selftest_find_any_engine(gt);
+
 	if (!engine || !intel_engine_can_store_dword(engine))
 		return 0;
 
@@ -1819,12 +1823,14 @@ static int igt_handle_error(void *arg)
 {
 	struct intel_gt *gt = arg;
 	struct i915_gpu_error *global = &gt->i915->gpu_error;
-	struct intel_engine_cs *engine = gt->engine[RCS0];
+	struct intel_engine_cs *engine;
 	struct hang h;
 	struct i915_request *rq;
 	struct i915_gpu_coredump *error;
 	int err;
 
+	engine = intel_selftest_find_any_engine(gt);
+
 	/* Check that we can issue a global GPU and engine reset */
 
 	if (!intel_has_reset_engine(gt))
-- 
2.37.1