linux-kernel - [PATCH 5.4 145/151] drm/i915: Correctly set SFC capability for video engines

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Date:   Tue, 17 Nov 2020 14:06:15 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Matt Roper <matthew.d.roper@...el.com>,
        Tvrtko Ursulin <tvrtko.ursulin@...el.com>,
        Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@...el.com>,
        Daniele Ceraolo Spurio <daniele.ceraolospurio@...el.com>,
        Chris Wilson <chris@...is-wilson.co.uk>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>
Subject: [PATCH 5.4 145/151] drm/i915: Correctly set SFC capability for video engines

From: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@...el.com>

commit 5ce6861d36ed5207aff9e5eead4c7cc38a986586 upstream.

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@...el.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@...el.com>
Signed-off-by: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@...el.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@...el.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@...el.com>
Cc: <stable@...r.kernel.org> # v5.3+
Signed-off-by: Chris Wilson <chris@...is-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20201106011842.36203-1-daniele.ceraolospurio@intel.com
(cherry picked from commit ad18fa0f5f052046cad96fee762b5c64f42dd86a)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/gpu/drm/i915/gt/intel_engine_cs.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -354,7 +354,8 @@ static void __setup_engine_capabilities(
 		 * instances.
 		 */
 		if ((INTEL_GEN(i915) >= 11 &&
-		     RUNTIME_INFO(i915)->vdbox_sfc_access & engine->mask) ||
+		     (RUNTIME_INFO(i915)->vdbox_sfc_access &
+		      BIT(engine->instance))) ||
 		    (INTEL_GEN(i915) >= 9 && engine->instance == 0))
 			engine->uabi_capabilities |=
 				I915_VIDEO_AND_ENHANCE_CLASS_CAPABILITY_SFC;