The workarounds are a common "feature" across gens and submission
mechanisms and we already call the other WA related functions from
common engine ones (<setup/cleanup>_common), so it makes sense to
do the same with WA application. Medium-term, This will help us
reduce the duplication once the GuC resume function is added, but short
term it will also allow us to use the workaround lists for pre-gen8
engine workarounds.
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxxxxxxxx>
Cc: Matthew Brost <matthew.brost@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/intel_engine.h | 2 ++
drivers/gpu/drm/i915/gt/intel_engine_cs.c | 14 ++++++++++++++
drivers/gpu/drm/i915/gt/intel_gt_pm.c | 2 +-
drivers/gpu/drm/i915/gt/intel_lrc.c | 3 ---
drivers/gpu/drm/i915/gt/intel_reset.c | 4 ++--
5 files changed, 19 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_engine.h b/drivers/gpu/drm/i915/gt/intel_engine.h
index 5df003061e44..b36ec1fddc3d 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine.h
@@ -192,6 +192,8 @@ void intel_engines_free(struct intel_gt *gt);
int intel_engine_init_common(struct intel_engine_cs *engine);
void intel_engine_cleanup_common(struct intel_engine_cs *engine);
+int intel_engine_resume(struct intel_engine_cs *engine);
+
int intel_ring_submission_setup(struct intel_engine_cs *engine);
int intel_engine_stop_cs(struct intel_engine_cs *engine);
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index 39fe9a5b4820..c7435475bc75 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -841,6 +841,20 @@ void intel_engine_cleanup_common(struct intel_engine_cs *engine)
intel_wa_list_free(&engine->whitelist);
}
+/**
+ * intel_engine_resume - re-initializes the HW state of the engine
+ * @engine: Engine to resume.
+ *
+ * Returns zero on success or an error code on failure.
+ */
+int intel_engine_resume(struct intel_engine_cs *engine)
+{
+ intel_engine_apply_workarounds(engine);
+ intel_engine_apply_whitelist(engine);
+
+ return engine->resume(engine);
+}
+
u64 intel_engine_get_active_head(const struct intel_engine_cs *engine)
{
struct drm_i915_private *i915 = engine->i915;
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
index d1c2f034296a..8b653c0f5e5f 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
@@ -216,7 +216,7 @@ int intel_gt_resume(struct intel_gt *gt)
intel_engine_pm_get(engine);
engine->serial++; /* kernel context lost */
- err = engine->resume(engine);
+ err = intel_engine_resume(engine);
intel_engine_pm_put(engine);
if (err) {
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 8f15ab7d8d88..601f65bd93b5 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -3431,9 +3431,6 @@ static bool unexpected_starting_state(struct intel_engine_cs *engine)
static int execlists_resume(struct intel_engine_cs *engine)
{
- intel_engine_apply_workarounds(engine);
- intel_engine_apply_whitelist(engine);
-
intel_mocs_init_engine(engine);
intel_engine_reset_breadcrumbs(engine);
diff --git a/drivers/gpu/drm/i915/gt/intel_reset.c b/drivers/gpu/drm/i915/gt/intel_reset.c
index ea983eff0e4e..6d720c4648d0 100644
--- a/drivers/gpu/drm/i915/gt/intel_reset.c
+++ b/drivers/gpu/drm/i915/gt/intel_reset.c
@@ -982,7 +982,7 @@ static int resume(struct intel_gt *gt)
int ret;
for_each_engine(engine, gt, id) {
- ret = engine->resume(engine);
+ ret = intel_engine_resume(engine);
if (ret)
return ret;
}
@@ -1157,7 +1157,7 @@ int intel_engine_reset(struct intel_engine_cs *engine, const char *msg)
* have been reset to their default values. Follow the init_ring
* process to program RING_MODE, HWSP and re-enable submission.
*/
- ret = engine->resume(engine);
+ ret = intel_engine_resume(engine);
out:
intel_engine_cancel_stop_cs(engine);
--
2.24.1
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