From: Michel Thierry Date: Mon, 4 Jun 2018 16:32:50 -0700 Subject: drm/i915/perf: fix gen11 engine class shift Git-commit: 2b9a820318ebdf81f666be4daf7414d98123fefb Patch-mainline: v4.19-rc1 References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166 Use the correct engine class shift value while storing the ctx hw id. Fixes the copy+paste error from commit 61d5676b5561 ("drm/i915/perf: fix ctx_id read with GuC & ICL"). Apologies for not spotting this in the original review, the specific_ctx_id_mask is correct, only the specific_ctx_id had this problem. v2: Just use the upper 32 bits of lrc_desc (Chris) v3: If we use the lrc_desc, we must apply the ctx_id_mask too (Lionel) Fixes: 61d5676b5561 ("drm/i915/perf: fix ctx_id read with GuC & ICL") Signed-off-by: Michel Thierry Cc: Lionel Landwerlin Cc: Chris Wilson Cc: Michel Thierry Cc: Matthew Auld Cc: Jani Nikula Cc: Joonas Lahtinen Cc: Rodrigo Vivi Cc: intel-gfx@lists.freedesktop.org Reviewed-by: Lionel Landwerlin Signed-off-by: Lionel Landwerlin Link: https://patchwork.freedesktop.org/patch/msgid/20180604233250.609-2-michel.thierry@intel.com Acked-by: Petr Tesarik --- drivers/gpu/drm/i915/i915_perf.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) --- a/drivers/gpu/drm/i915/i915_perf.c +++ b/drivers/gpu/drm/i915/i915_perf.c @@ -1289,16 +1289,13 @@ static int oa_get_render_ctx_id(struct i break; case 11: { - struct intel_engine_cs *engine = i915->engine[RCS]; - - i915->perf.oa.specific_ctx_id = - stream->ctx->hw_id << (GEN11_SW_CTX_ID_SHIFT - 32) | - engine->instance << (GEN11_ENGINE_INSTANCE_SHIFT - 32) | - engine->class << (GEN11_ENGINE_INSTANCE_SHIFT - 32); i915->perf.oa.specific_ctx_id_mask = ((1U << GEN11_SW_CTX_ID_WIDTH) - 1) << (GEN11_SW_CTX_ID_SHIFT - 32) | ((1U << GEN11_ENGINE_INSTANCE_WIDTH) - 1) << (GEN11_ENGINE_INSTANCE_SHIFT - 32) | ((1 << GEN11_ENGINE_CLASS_WIDTH) - 1) << (GEN11_ENGINE_CLASS_SHIFT - 32); + i915->perf.oa.specific_ctx_id = upper_32_bits(ce->lrc_desc); + i915->perf.oa.specific_ctx_id &= + i915->perf.oa.specific_ctx_id_mask; break; }