From: Zhen Han <zhen.han@xxxxxxxxx> GPU hangs at RCC. According to Wa_14012131227 we shouldn't have a hang due to RHWO, but that is what we are observing, even without media compressible render target. Feedback from HW engineers is to leave RHWO disabled. Cc: Jianjun Liu <Jianjun.liu@xxxxxxxxx> Cc: Chuansheng Liu <chuansheng.liu@xxxxxxxxx> Cc: Radhakrishna Sripada <radhakrishna.sripada@xxxxxxxxx> Signed-off-by: Zhen Han <zhen.han@xxxxxxxxx> Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx> --- drivers/gpu/drm/i915/gt/intel_workarounds.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index e678fa8d2ab9..5235fb70a69a 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -739,6 +739,17 @@ static void dg1_ctx_workarounds_init(struct intel_engine_cs *engine, FF_MODE2, FF_MODE2_GS_TIMER_MASK, FF_MODE2_GS_TIMER_224, 0); + + /* + * Wa_14012131227 + * + * Although the WA is described as causing corruption when using media + * compressible render target, leaving RHWO enabled is also causing + * gpu hang when using multiple concurrent render and media workloads. + * Disable it completely for now. + */ + wa_masked_en(wal, GEN7_COMMON_SLICE_CHICKEN1, + GEN9_RHWO_OPTIMIZATION_DISABLE); } static void -- 2.30.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
