The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 5ce6861d36ed5207aff9e5eead4c7cc38a986586 Mon Sep 17 00:00:00 2001
From: Venkata Sandeep Dhanalakota venkata.s.dhanalakota@intel.com Date: Thu, 5 Nov 2020 17:18:42 -0800 Subject: [PATCH] drm/i915: Correctly set SFC capability for video engines
SFC capability of video engines is not set correctly because i915 is testing for incorrect bits.
Fixes: c5d3e39caa45 ("drm/i915: Engine discovery query") Cc: Matt Roper matthew.d.roper@intel.com Cc: Tvrtko Ursulin tvrtko.ursulin@intel.com Signed-off-by: Venkata Sandeep Dhanalakota venkata.s.dhanalakota@intel.com Signed-off-by: Daniele Ceraolo Spurio daniele.ceraolospurio@intel.com Reviewed-by: Tvrtko Ursulin tvrtko.ursulin@intel.com Cc: stable@vger.kernel.org # v5.3+ Signed-off-by: Chris Wilson chris@chris-wilson.co.uk Link: https://patchwork.freedesktop.org/patch/msgid/20201106011842.36203-1-daniele... (cherry picked from commit ad18fa0f5f052046cad96fee762b5c64f42dd86a) Signed-off-by: Rodrigo Vivi rodrigo.vivi@intel.com
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c index 5bfb5f7ed02c..efdeb7b7b2a0 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c @@ -371,7 +371,8 @@ static void __setup_engine_capabilities(struct intel_engine_cs *engine) * instances. */ if ((INTEL_GEN(i915) >= 11 && - engine->gt->info.vdbox_sfc_access & engine->mask) || + (engine->gt->info.vdbox_sfc_access & + BIT(engine->instance))) || (INTEL_GEN(i915) >= 9 && engine->instance == 0)) engine->uabi_capabilities |= I915_VIDEO_AND_ENHANCE_CLASS_CAPABILITY_SFC;