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

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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: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220301231549.1817978-11-matthew.d.roper@intel.com
This commit is contained in:
Matthew Brost 2022-03-01 15:15:46 -08:00 committed by Matt Roper
parent ea4ca894a1
commit e393e2aa0a
2 changed files with 14 additions and 0 deletions
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10
drivers/gpu/drm/i915/gem/i915_gem_context.c
View File

@ -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) {

4
drivers/gpu/drm/i915/gt/uc/selftest_guc_multi_lrc.c
View File

@ -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;