From patchwork Thu Apr 27 23:48:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Teres Alexis, Alan Previn" X-Patchwork-Id: 13225871 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 49F60C77B61 for ; Thu, 27 Apr 2023 23:49:19 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C657910EC02; Thu, 27 Apr 2023 23:49:00 +0000 (UTC) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id 592D710E1F8; Thu, 27 Apr 2023 23:48:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1682639337; x=1714175337; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=8SFcL0erINhukxTNL7GDSlNQ2j7cyUWzmStSlrDvxB0=; b=Zg4Cf0WYy04JxS+RbNmiiP6Y9DhtLeClYsWsySXv2ROrRFUnTGWl+nsv OTqN5N6GS384N5RcbJr5Q3RCZVPn7HQmNccIhQPyYNJf4aq4701qB4T/Z X2mNmmeGs20nhwLNuQlGvwdtJV2+OttttwSmZCwNNHcTNkL1N0ABye6rh VTvmwHeaRrbCfn1aSoXOGSZ1zmmUvDtTpNRNzEAuSR9Le4YyMtTJfRYBw k+0lVKRmYPXgs9G2OfSmhHD3g/tZsfnr1EAMccNRZWLrFKfW2CCLgYOAd 1InaspPHDXHUw5jzTCagmQhFGENSqB+DGxpOJH+DB+FOhThjUooFLatcf g==; X-IronPort-AV: E=McAfee;i="6600,9927,10693"; a="336634857" X-IronPort-AV: E=Sophos;i="5.99,232,1677571200"; d="scan'208";a="336634857" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Apr 2023 16:48:47 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10693"; a="764051969" X-IronPort-AV: E=Sophos;i="5.99,232,1677571200"; d="scan'208";a="764051969" Received: from aalteres-desk.fm.intel.com ([10.80.57.53]) by fmsmga004.fm.intel.com with ESMTP; 27 Apr 2023 16:48:46 -0700 From: Alan Previn To: intel-gfx@lists.freedesktop.org Subject: [PATCH v9 7/8] drm/i915/pxp: On MTL, KCR enabling doesn't wait on tee component Date: Thu, 27 Apr 2023 16:48:42 -0700 Message-Id: <20230427234843.2886921-8-alan.previn.teres.alexis@intel.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230427234843.2886921-1-alan.previn.teres.alexis@intel.com> References: <20230427234843.2886921-1-alan.previn.teres.alexis@intel.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alan Previn , Tvrtko Ursulin , Juston Li , dri-devel@lists.freedesktop.org, Daniele Ceraolo Spurio , Lionel Landwerlin , Rodrigo Vivi , Jordan Justen Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On legacy platforms, KCR HW enabling is done at the time the mei component interface is bound. It's also disabled during unbind. However, for MTL onwards, we don't depend on a tee component to start sending GSC-CS firmware messages. Thus, immediately enable (or disable) KCR HW on PXP's init, fini and resume. Signed-off-by: Alan Previn Reviewed-by: Daniele Ceraolo Spurio --- drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c | 15 ++++++++++++++- drivers/gpu/drm/i915/pxp/intel_pxp_pm.c | 3 ++- 2 files changed, 16 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c b/drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c index 4bc276daca16..8dc41de3f6f7 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c @@ -10,6 +10,7 @@ #include "gt/uc/intel_gsc_uc_heci_cmd_submit.h" #include "i915_drv.h" +#include "intel_pxp.h" #include "intel_pxp_cmd_interface_42.h" #include "intel_pxp_cmd_interface_43.h" #include "intel_pxp_gsccs.h" @@ -422,10 +423,22 @@ gsccs_allocate_execution_resource(struct intel_pxp *pxp) void intel_pxp_gsccs_fini(struct intel_pxp *pxp) { + intel_wakeref_t wakeref; + gsccs_destroy_execution_resource(pxp); + with_intel_runtime_pm(&pxp->ctrl_gt->i915->runtime_pm, wakeref) + intel_pxp_fini_hw(pxp); } int intel_pxp_gsccs_init(struct intel_pxp *pxp) { - return gsccs_allocate_execution_resource(pxp); + int ret; + intel_wakeref_t wakeref; + + ret = gsccs_allocate_execution_resource(pxp); + if (!ret) { + with_intel_runtime_pm(&pxp->ctrl_gt->i915->runtime_pm, wakeref) + intel_pxp_init_hw(pxp); + } + return ret; } diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c index 4f836b317424..1a04067f61fc 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c @@ -43,8 +43,9 @@ void intel_pxp_resume_complete(struct intel_pxp *pxp) * The PXP component gets automatically unbound when we go into S3 and * re-bound after we come out, so in that scenario we can defer the * hw init to the bind call. + * NOTE: GSC-CS backend doesn't rely on components. */ - if (!pxp->pxp_component) + if (!HAS_ENGINE(pxp->ctrl_gt, GSC0) && !pxp->pxp_component) return; intel_pxp_init_hw(pxp);