drm/i915/ats-m: Add thread execution tuning setting
On client DG2 platforms, optimal performance is achieved with the
hardware's default "age based" thread execution setting. However on
ATS-M, switching this to "round robin after dependencies" provides
better performance. We'll add a new "tuning" feature flag to the ATS-M
device info to enable/disable this setting.
Bspec: 68331
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Atwood <matthew.s.atwood@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220826212718.409948-1-matthew.d.roper@intel.com
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index 677fb68..9cd912c 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -172,6 +172,7 @@ enum intel_ppgtt_type {
func(has_runtime_pm); \
func(has_snoop); \
func(has_coherent_ggtt); \
+ func(tuning_thread_rr_after_dep); \
func(unfenced_needs_alignment); \
func(hws_needs_physical);
