From 92939935f478c5a0cc43f87652360ac5c70063b9 Mon Sep 17 00:00:00 2001 From: Daniele Ceraolo Spurio Date: Thu, 17 Aug 2023 13:18:30 -0700 Subject: [PATCH] drm/xe: don't expose the GSCCS to users The kernel is the only expected user of the GSCCS, so we don't want to expose it to userspace. Signed-off-by: Daniele Ceraolo Spurio Reviewed-by: Matt Roper Link: https://lore.kernel.org/r/20230817201831.1583172-7-daniele.ceraolospurio@intel.com Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/xe/xe_hw_engine.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_hw_engine.c b/drivers/gpu/drm/xe/xe_hw_engine.c index 32a5bd9d8e6b6..81281e9c02eb5 100644 --- a/drivers/gpu/drm/xe/xe_hw_engine.c +++ b/drivers/gpu/drm/xe/xe_hw_engine.c @@ -795,6 +795,9 @@ bool xe_hw_engine_is_reserved(struct xe_hw_engine *hwe) struct xe_gt *gt = hwe->gt; struct xe_device *xe = gt_to_xe(gt); + if (hwe->class == XE_ENGINE_CLASS_OTHER) + return true; + return xe->info.supports_usm && hwe->class == XE_ENGINE_CLASS_COPY && hwe->instance == gt->usm.reserved_bcs_instance; } -- 2.30.2