Commit e393e2aa authored by Matthew Brost's avatar Matthew Brost Committed by Matt Roper
Browse files

drm/i915/xehp: Don't support parallel submission on compute / render 



A different emit breadcrumbs ring programming is required for compute /
render and we don't have UMD user so just reject parallel submission for
these engine classes.

Signed-off-by: default avatarMatthew Brost <matthew.brost@intel.com>
Signed-off-by: default avatarMatt Roper <matthew.d.roper@intel.com>
Reviewed-by: default avatarDaniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220301231549.1817978-11-matthew.d.roper@intel.com
parent ea4ca894

drivers/gpu/drm/i915/gem/i915_gem_context.c

+10 −0
Original line number Diff line number Diff line
@@ -670,6 +670,16 @@ set_proto_ctx_engines_parallel_submit(struct i915_user_extension __user *base, 
				goto out_err;

			}



			/*

			 * We don't support breadcrumb handshake on these

			 * classes

			 */

			if (siblings[n]->class == RENDER_CLASS ||

			    siblings[n]->class == COMPUTE_CLASS) {

				err = -EINVAL;

				goto out_err;

			}



			if (n) {

				if (prev_engine.engine_class !=

				    ci.engine_class) {

drivers/gpu/drm/i915/gt/uc/selftest_guc_multi_lrc.c

+4 −0
Original line number Diff line number Diff line
@@ -154,6 +154,10 @@ static int intel_guc_multi_lrc_basic(void *arg) 
	int ret;



	for (class = 0; class < MAX_ENGINE_CLASS + 1; ++class) {

		/* We don't support breadcrumb handshake on these classes */

		if (class == COMPUTE_CLASS || class == RENDER_CLASS)

			continue;



		ret = __intel_guc_multi_lrc_basic(gt, class);

		if (ret)

			return ret;