From patchwork Fri Apr 21 05:34:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alan Previn X-Patchwork-Id: 13219509 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 20B22C77B75 for ; Fri, 21 Apr 2023 05:34:48 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EAC5A10EDA3; Fri, 21 Apr 2023 05:34:28 +0000 (UTC) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 275D710E28F; Fri, 21 Apr 2023 05:34:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1682055256; x=1713591256; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=8SFcL0erINhukxTNL7GDSlNQ2j7cyUWzmStSlrDvxB0=; b=cdMUXEIdNTTiMw4eSDOlm5UPMY11e4KWOim/u8x10JnMR+GPt6hSt3CG rEI4Pd1Q7oA+dei5KUCe04l9cEZ7mVRWUsGyW+n8/AK3YcUV5KGSes4Jv dpPuDEpcpo/k6TGjEvya2lL8vcV/qGhd4o2YaEbfqa5gzpkPXyKwFH0vA lHbUhSXFd5xdwUTNzWbvK84GqWAYDUp9Tf3JgPBueS5QeD26DmsvaI77g C8BiZVL9SDhJwWJDrBLR7j93ZXdS28R/jbSG/kC7u4d7oCsIHRPelyrGD BwjwO9smKMU2BWv9yFOpAN/5h3tnQAJ4y4rSl4ei/9LJLWrbbkVXEleTG w==; X-IronPort-AV: E=McAfee;i="6600,9927,10686"; a="411186943" X-IronPort-AV: E=Sophos;i="5.99,214,1677571200"; d="scan'208";a="411186943" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Apr 2023 22:34:15 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10686"; a="669612116" X-IronPort-AV: E=Sophos;i="5.99,214,1677571200"; d="scan'208";a="669612116" Received: from aalteres-desk.fm.intel.com ([10.80.57.53]) by orsmga006.jf.intel.com with ESMTP; 20 Apr 2023 22:34:15 -0700 From: Alan Previn To: intel-gfx@lists.freedesktop.org Date: Thu, 20 Apr 2023 22:34:08 -0700 Message-Id: <20230421053410.1836241-8-alan.previn.teres.alexis@intel.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230421053410.1836241-1-alan.previn.teres.alexis@intel.com> References: <20230421053410.1836241-1-alan.previn.teres.alexis@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v8 7/8] drm/i915/pxp: On MTL, KCR enabling doesn't wait on tee component X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alan Previn , dri-devel@lists.freedesktop.org, Rodrigo Vivi Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" 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);