[Intel-gfx] [PATCH v4 2/9] drm/i915/perf: Add helper to check supported OA engines

[Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>]

With an intention to add more engines that are supported by OA, add
helper to check for supported OA engines.

v2: (Ashutosh)
- Update commit message
- Drop virtual engine check since we support only one render engine

Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
---
 drivers/gpu/drm/i915/i915_perf.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 283a4a3c6862..b0e1acbe90fc 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -1570,6 +1570,16 @@ free_noa_wait(struct i915_perf_stream *stream)
 	i915_vma_unpin_and_release(&stream->noa_wait, 0);
 }
 
+static bool engine_supports_oa(const struct intel_engine_cs *engine)
+{
+	enum intel_platform platform = INTEL_INFO(engine->i915)->platform;
+
+	switch (platform) {
+	default:
+		return engine->class == RENDER_CLASS;
+	}
+}
+
 static void i915_oa_stream_destroy(struct i915_perf_stream *stream)
 {
 	struct i915_perf *perf = stream->perf;
@@ -2505,7 +2515,7 @@ static int gen8_configure_context(struct i915_gem_context *ctx,
 	for_each_gem_engine(ce, i915_gem_context_lock_engines(ctx), it) {
 		GEM_BUG_ON(ce == ce->engine->kernel_context);
 
-		if (ce->engine->class != RENDER_CLASS)
+		if (!engine_supports_oa(ce->engine))
 			continue;
 
 		/* Otherwise OA settings will be set upon first use */
@@ -2656,7 +2666,7 @@ oa_configure_all_contexts(struct i915_perf_stream *stream,
 	for_each_uabi_engine(engine, i915) {
 		struct intel_context *ce = engine->kernel_context;
 
-		if (engine->class != RENDER_CLASS)
+		if (!engine_supports_oa(ce->engine))
 			continue;
 
 		regs[0].value = intel_sseu_make_rpcs(engine->gt, &ce->sseu);
@@ -3369,7 +3379,7 @@ void i915_oa_init_reg_state(const struct intel_context *ce,
 {
 	struct i915_perf_stream *stream;
 
-	if (engine->class != RENDER_CLASS)
+	if (!engine_supports_oa(engine))
 		return;
 
 	/* perf.exclusive_stream serialised by lrc_configure_all_contexts() */
-- 
2.36.1