6.6-stable review patch. If anyone has any objections, please let me know.
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From: Rodrigo Vivi rodrigo.vivi@intel.com
[ Upstream commit 20e7c5313ffbf11c34a46395345677adbe890bee ]
sub-pipe PG is not present on DG1. Setting these bits can disable other power gates and cause GPU hangs on video playbacks.
VLK: 16314, 4304
Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/13381 Fixes: 85a12d7eb8fe ("drm/i915/tgl: Fix Media power gate sequence.") Cc: Vinay Belgaumkar vinay.belgaumkar@intel.com Cc: Himal Prasad Ghimiray himal.prasad.ghimiray@intel.com Reviewed-by: Vinay Belgaumkar vinay.belgaumkar@intel.com Reviewed-by: Himal Prasad Ghimiray himal.prasad.ghimiray@intel.com Link: https://patchwork.freedesktop.org/patch/msgid/20241219210019.70532-1-rodrigo... Signed-off-by: Rodrigo Vivi rodrigo.vivi@intel.com (cherry picked from commit de7061947b4ed4be857d452c60d5fb795831d79e) Signed-off-by: Tvrtko Ursulin tursulin@ursulin.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/i915/gt/intel_rc6.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_rc6.c b/drivers/gpu/drm/i915/gt/intel_rc6.c index 9e113e947326..6e8c182b2559 100644 --- a/drivers/gpu/drm/i915/gt/intel_rc6.c +++ b/drivers/gpu/drm/i915/gt/intel_rc6.c @@ -133,7 +133,7 @@ static void gen11_rc6_enable(struct intel_rc6 *rc6) GEN9_MEDIA_PG_ENABLE | GEN11_MEDIA_SAMPLER_PG_ENABLE;
- if (GRAPHICS_VER(gt->i915) >= 12) { + if (GRAPHICS_VER(gt->i915) >= 12 && !IS_DG1(gt->i915)) { for (i = 0; i < I915_MAX_VCS; i++) if (HAS_ENGINE(gt, _VCS(i))) pg_enable |= (VDN_HCP_POWERGATE_ENABLE(i) |