From patchwork Wed Jan 25 08:26:32 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: 13115116 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 8A80AC61D9D for ; Wed, 25 Jan 2023 08:26:59 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9CB8D89FC9; Wed, 25 Jan 2023 08:26:47 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id 60CF988FAE; Wed, 25 Jan 2023 08:26:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1674635204; x=1706171204; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=kBmMnLyy6W2MDFW1b38+tE3Zdfm36TxVLDVPmm+kaNU=; b=eoA5qo9IJS5jTZHwdA+w7lsXqmE431qmpPfFCCidl73SECs0excXCXa/ 51NvlB8UrGsM1VSlM8NUsPykCQOUXAZfPAaCKjpLEIc4UXgTsXmIBhjy4 lDmaMplcmGViZbzhDycFLipE9WH8nRH+1VBSZIpAVx+KbczRbvfspKHJh ctDoXvw6KVVIMGjwD6745sT87mbHruIyGB82S9EMkUZp+7dK7Y/2hi3jy CIPyFSsHSM5LWKPdY/0C9ymYiRWEnp7rV2m3gdu13jH0FQ37/rs5snHxa STiE4IqldIpzTGLD8lGk9LEIiw487eU+C7qypZLjPyvFXrtfBYngRhHsX w==; X-IronPort-AV: E=McAfee;i="6500,9779,10600"; a="325180410" X-IronPort-AV: E=Sophos;i="5.97,244,1669104000"; d="scan'208";a="325180410" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Jan 2023 00:26:42 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10600"; a="662426108" X-IronPort-AV: E=Sophos;i="5.97,244,1669104000"; d="scan'208";a="662426108" Received: from aalteres-desk.fm.intel.com ([10.80.57.53]) by orsmga002.jf.intel.com with ESMTP; 25 Jan 2023 00:26:38 -0800 From: Alan Previn To: intel-gfx@lists.freedesktop.org Subject: [PATCH v7 1/6] mei: mei-me: resume device in prepare Date: Wed, 25 Jan 2023 00:26:32 -0800 Message-Id: <20230125082637.118970-2-alan.previn.teres.alexis@intel.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230125082637.118970-1-alan.previn.teres.alexis@intel.com> References: <20230125082637.118970-1-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 , Vivi@freedesktop.org, Greg Kroah-Hartman , Rodrigo , Alexander Usyskin , dri-devel@lists.freedesktop.org, Daniele Ceraolo Spurio , Juston Li , Tomas Winkler Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Alexander Usyskin Asynchronous runtime resume is not possible while the system is suspending. The power management subsystem resumes the device only in the suspend phase, not in the prepare phase. Force resume device in prepare to allow drivers on mei bus to communicate in their prepare callbacks. Signed-off-by: Alexander Usyskin Reviewed-by: Tomas Winkler Signed-off-by: Alan Previn Acked-by: Greg Kroah-Hartman --- drivers/misc/mei/pci-me.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c index 5bf0d50d55a0..676d566f38dd 100644 --- a/drivers/misc/mei/pci-me.c +++ b/drivers/misc/mei/pci-me.c @@ -342,6 +342,12 @@ static void mei_me_remove(struct pci_dev *pdev) } #ifdef CONFIG_PM_SLEEP +static int mei_me_pci_prepare(struct device *device) +{ + pm_runtime_resume(device); + return 0; +} + static int mei_me_pci_suspend(struct device *device) { struct pci_dev *pdev = to_pci_dev(device); @@ -398,7 +404,17 @@ static int mei_me_pci_resume(struct device *device) return 0; } -#endif /* CONFIG_PM_SLEEP */ + +static void mei_me_pci_complete(struct device *device) +{ + pm_runtime_suspend(device); +} +#else /* CONFIG_PM_SLEEP */ + +#define mei_me_pci_prepare NULL +#define mei_me_pci_complete NULL + +#endif /* !CONFIG_PM_SLEEP */ #ifdef CONFIG_PM static int mei_me_pm_runtime_idle(struct device *device) @@ -501,6 +517,8 @@ static inline void mei_me_unset_pm_domain(struct mei_device *dev) } static const struct dev_pm_ops mei_me_pm_ops = { + .prepare = mei_me_pci_prepare, + .complete = mei_me_pci_complete, SET_SYSTEM_SLEEP_PM_OPS(mei_me_pci_suspend, mei_me_pci_resume) SET_RUNTIME_PM_OPS( From patchwork Wed Jan 25 08:26:33 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: 13115120 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 38361C61D9D for ; Wed, 25 Jan 2023 08:27:11 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2134B10E750; Wed, 25 Jan 2023 08:26:59 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6161189CAD; Wed, 25 Jan 2023 08:26:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1674635205; x=1706171205; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ADl1Dyc7Bojb3o0IedOIXx9G8UyKYnFQ+XdrZ3GNPls=; b=hg3+wFOz920oZ+OeYzwZOofYMao5s2aayy1rwhli8/BVnzleltSwyF8S aoiRAoGIGb5nu6Ncktd4psdGSk/mrNX9TCvwiX+73GNzSkv3lE1BxFxAx XYTPX5Ul6gpr7Nk5JNMM0DDCQ/xQ26VUi/sukSBJ97CGbYdNIMBvN4Z5O j+jtv7Es9WxCFNkqcH73/Jclx0mv3zrRYvFMhGahzn3SUormwR++O8NhV dfHNTYYU7W/eO1w7CvVbqpRnmi32HYzMBngz2MsVFwCXZUKcFABgLycL0 1LqdqOa7eG7ftCGEPEL3E8ROQUd5rdGKr2XJpHdf8PWZX0/cXCXRQn1KG g==; X-IronPort-AV: E=McAfee;i="6500,9779,10600"; a="325180413" X-IronPort-AV: E=Sophos;i="5.97,244,1669104000"; d="scan'208";a="325180413" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Jan 2023 00:26:42 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10600"; a="662426112" X-IronPort-AV: E=Sophos;i="5.97,244,1669104000"; d="scan'208";a="662426112" Received: from aalteres-desk.fm.intel.com ([10.80.57.53]) by orsmga002.jf.intel.com with ESMTP; 25 Jan 2023 00:26:38 -0800 From: Alan Previn To: intel-gfx@lists.freedesktop.org Subject: [PATCH v7 2/6] drm/i915/pxp: add device link between i915 and mei_pxp Date: Wed, 25 Jan 2023 00:26:33 -0800 Message-Id: <20230125082637.118970-3-alan.previn.teres.alexis@intel.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230125082637.118970-1-alan.previn.teres.alexis@intel.com> References: <20230125082637.118970-1-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 , Vivi@freedesktop.org, Greg Kroah-Hartman , Rodrigo , Alexander Usyskin , dri-devel@lists.freedesktop.org, Daniele Ceraolo Spurio , Juston Li , Tomas Winkler Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Alexander Usyskin Add device link with i915 as consumer and mei_pxp as supplier to ensure proper ordering of power flows. V2: condition on absence of heci_pxp to filter out DG Signed-off-by: Alexander Usyskin Signed-off-by: Alan Previn Reviewed-by: Rodrigo Vivi --- drivers/gpu/drm/i915/pxp/intel_pxp_tee.c | 11 +++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_types.h | 3 +++ 2 files changed, 14 insertions(+) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c index 73aa8015f828..b5bc0b87a1d0 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c @@ -127,6 +127,12 @@ static int i915_pxp_tee_component_bind(struct device *i915_kdev, intel_wakeref_t wakeref; int ret = 0; + if (!HAS_HECI_PXP(i915)) { + pxp->dev_link = device_link_add(i915_kdev, tee_kdev, DL_FLAG_STATELESS); + if (drm_WARN_ON(&i915->drm, !pxp->dev_link)) + return -ENODEV; + } + mutex_lock(&pxp->tee_mutex); pxp->pxp_component = data; pxp->pxp_component->tee_dev = tee_kdev; @@ -169,6 +175,11 @@ static void i915_pxp_tee_component_unbind(struct device *i915_kdev, mutex_lock(&pxp->tee_mutex); pxp->pxp_component = NULL; mutex_unlock(&pxp->tee_mutex); + + if (pxp->dev_link) { + device_link_del(pxp->dev_link); + pxp->dev_link = NULL; + } } static const struct component_ops i915_pxp_tee_component_ops = { diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_types.h b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h index 7dc5f08d1583..007de49e1ea4 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_types.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h @@ -32,6 +32,9 @@ struct intel_pxp { * which are protected by &tee_mutex. */ struct i915_pxp_component *pxp_component; + + /* @dev_link: Enforce module relationship for power management ordering. */ + struct device_link *dev_link; /** * @pxp_component_added: track if the pxp component has been added. * Set and cleared in tee init and fini functions respectively. From patchwork Wed Jan 25 08:26:34 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: 13115118 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 61191C54E94 for ; Wed, 25 Jan 2023 08:27:04 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 453BB10E749; Wed, 25 Jan 2023 08:26:48 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id 46C1E897FD; Wed, 25 Jan 2023 08:26:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1674635205; x=1706171205; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=vbcjHN6c+T2ove7xe1N675QhwgjetRSgH+Q8NcZ3S/g=; b=VLPYvk3ZJ2CAibXYh1cg/dLQS1Lgkqrn9VAzDZR/1VSwdqmQAmDo0gNf 1tYMYcSj+HPE1Mv+WnlDRciGp8RbCESn6ucmfeiyjZVNn76iFi+WEx4f+ tVnOBxFMYnFNSwddh/NTLFjoyIRGgeMZQc7aJGgmJtM64e1neBElNJfYC P18ndK5avD7gpurEhK4U7N0P7nXhlCpXOyBGctV/S6tA3T+UmczAaVHsr r1uNh8D4n2tXvcSJdoQWcY/t8E2UXART94MeQLK70BR/iYJnmZgFkDkgp GNuBaP+EQS/moW8DG9LGseisXI2kpd4qtwItyin/3FojNWZhj2qKti2CT A==; X-IronPort-AV: E=McAfee;i="6500,9779,10600"; a="325180414" X-IronPort-AV: E=Sophos;i="5.97,244,1669104000"; d="scan'208";a="325180414" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Jan 2023 00:26:42 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10600"; a="662426116" X-IronPort-AV: E=Sophos;i="5.97,244,1669104000"; d="scan'208";a="662426116" Received: from aalteres-desk.fm.intel.com ([10.80.57.53]) by orsmga002.jf.intel.com with ESMTP; 25 Jan 2023 00:26:38 -0800 From: Alan Previn To: intel-gfx@lists.freedesktop.org Subject: [PATCH v7 3/6] mei: clean pending read with vtag on bus Date: Wed, 25 Jan 2023 00:26:34 -0800 Message-Id: <20230125082637.118970-4-alan.previn.teres.alexis@intel.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230125082637.118970-1-alan.previn.teres.alexis@intel.com> References: <20230125082637.118970-1-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 , Vivi@freedesktop.org, Greg Kroah-Hartman , Rodrigo , Alexander Usyskin , dri-devel@lists.freedesktop.org, Daniele Ceraolo Spurio , Juston Li , Tomas Winkler Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Alexander Usyskin Client on bus have only one vtag map slot and should disregard the vtag value when cleaning pending read flag. Fixes read flow control message unexpectedly generated when clent on bus send messages with different vtags. Signed-off-by: Alexander Usyskin Reviewed-by: Tomas Winkler Signed-off-by: Alan Previn Acked-by: Greg Kroah-Hartman --- drivers/misc/mei/client.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c index 9ddb854b8155..5c19097266fe 100644 --- a/drivers/misc/mei/client.c +++ b/drivers/misc/mei/client.c @@ -1343,7 +1343,9 @@ static void mei_cl_reset_read_by_vtag(const struct mei_cl *cl, u8 vtag) struct mei_cl_vtag *vtag_l; list_for_each_entry(vtag_l, &cl->vtag_map, list) { - if (vtag_l->vtag == vtag) { + /* The client on bus has one fixed vtag map */ + if ((cl->cldev && mei_cldev_enabled(cl->cldev)) || + vtag_l->vtag == vtag) { vtag_l->pending_read = false; break; } From patchwork Wed Jan 25 08:26:35 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: 13115119 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 DB0EEC27C76 for ; Wed, 25 Jan 2023 08:27:07 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CF27D10E74A; Wed, 25 Jan 2023 08:26:49 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id 211BB88FAE; Wed, 25 Jan 2023 08:26:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1674635205; x=1706171205; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=l6ZOFllHkWk/A689z2YcnmFXlTqAhwXdc7gbxU4T5M4=; b=L+8uD9NisXduw9PiOCHV4e5Zq/CFsZhre+xVKQ9YIvuVP0j5Qhb1oFOE o7/5pvehwg681tyYD2+Hd8/RybYx7ev9hKWEAreBthlb96pmP1aD7gah6 apEwt3+cZdjAA6fEIRuHGD5djK2TwYjuy13ElWffy0h2o+iDn8sSmO4uL 3IrRJlvRyyh5FtkZLWQDNKsVIFh3UB2dSLlTyF9JHuNTmZgNyox3qF7H9 BPIKvvwaP8nqt/uMJWvdY620kf7qAXD1+8g1zOZj/F9geOlbrSZlo8Vkt nQrMZQRcPgLeHfu1/c4ex3p9g6rLohZVzYJXUmRxb/HyQpQwpYKno06fV g==; X-IronPort-AV: E=McAfee;i="6500,9779,10600"; a="325180417" X-IronPort-AV: E=Sophos;i="5.97,244,1669104000"; d="scan'208";a="325180417" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Jan 2023 00:26:42 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10600"; a="662426120" X-IronPort-AV: E=Sophos;i="5.97,244,1669104000"; d="scan'208";a="662426120" Received: from aalteres-desk.fm.intel.com ([10.80.57.53]) by orsmga002.jf.intel.com with ESMTP; 25 Jan 2023 00:26:38 -0800 From: Alan Previn To: intel-gfx@lists.freedesktop.org Subject: [PATCH v7 4/6] drm/i915/pxp: Invalidate all PXP fw sessions during teardown Date: Wed, 25 Jan 2023 00:26:35 -0800 Message-Id: <20230125082637.118970-5-alan.previn.teres.alexis@intel.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230125082637.118970-1-alan.previn.teres.alexis@intel.com> References: <20230125082637.118970-1-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 , Vivi@freedesktop.org, Greg Kroah-Hartman , Rodrigo , Alexander Usyskin , dri-devel@lists.freedesktop.org, Daniele Ceraolo Spurio , Juston Li , Tomas Winkler Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" A gap was recently discovered where if an application did not invalidate all of the stream keys (intentionally or not), and the driver did a full PXP global teardown on the GT subsystem, we find that future session creation would fail on the security firmware's side of the equation. i915 is the entity that needs ensure the sessions' state across both iGT and security firmware are at a known clean point when performing a full global teardown. Architecturally speaking, i915 should inspect all active sessions and submit the invalidate-stream-key PXP command to the security firmware for each of them. However, for the upstream i915 driver we only support the arbitration session that can be created so that will be the only session we will cleanup. Signed-off-by: Alan Previn Reviewed-by: Juston Li Acked-by: Rodrigo Vivi --- drivers/gpu/drm/i915/pxp/intel_pxp.h | 1 + .../drm/i915/pxp/intel_pxp_cmd_interface_42.h | 15 ++++++++ .../i915/pxp/intel_pxp_cmd_interface_cmn.h | 3 ++ drivers/gpu/drm/i915/pxp/intel_pxp_session.c | 2 ++ drivers/gpu/drm/i915/pxp/intel_pxp_tee.c | 35 +++++++++++++++++++ 5 files changed, 56 insertions(+) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h index 04440fada711..9658d3005222 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -24,6 +24,7 @@ void intel_pxp_init_hw(struct intel_pxp *pxp); void intel_pxp_fini_hw(struct intel_pxp *pxp); void intel_pxp_mark_termination_in_progress(struct intel_pxp *pxp); +void intel_pxp_tee_end_arb_fw_session(struct intel_pxp *pxp, u32 arb_session_id); int intel_pxp_start(struct intel_pxp *pxp); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_42.h b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_42.h index 739f9072fa5f..26f7d9f01bf3 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_42.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_42.h @@ -12,6 +12,9 @@ /* PXP-Opcode for Init Session */ #define PXP42_CMDID_INIT_SESSION 0x1e +/* PXP-Opcode for Invalidate Stream Key */ +#define PXP42_CMDID_INVALIDATE_STREAM_KEY 0x00000007 + /* PXP-Input-Packet: Init Session (Arb-Session) */ struct pxp42_create_arb_in { struct pxp_cmd_header header; @@ -25,4 +28,16 @@ struct pxp42_create_arb_out { struct pxp_cmd_header header; } __packed; +/* PXP-Input-Packet: Invalidate Stream Key */ +struct pxp42_inv_stream_key_in { + struct pxp_cmd_header header; + u32 rsvd[3]; +} __packed; + +/* PXP-Output-Packet: Invalidate Stream Key */ +struct pxp42_inv_stream_key_out { + struct pxp_cmd_header header; + u32 rsvd; +} __packed; + #endif /* __INTEL_PXP_FW_INTERFACE_42_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h index aaa8187a0afb..ae9b151b7cb7 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h @@ -28,6 +28,9 @@ struct pxp_cmd_header { union { u32 status; /* out */ u32 stream_id; /* in */ +#define PXP_CMDHDR_EXTDATA_SESSION_VALID GENMASK(0, 0) +#define PXP_CMDHDR_EXTDATA_APP_TYPE GENMASK(1, 1) +#define PXP_CMDHDR_EXTDATA_SESSION_ID GENMASK(17, 2) }; /* Length of the message (excluding the header) */ u32 buffer_len; diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c index ae413580b81a..74ed7e16e481 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c @@ -110,6 +110,8 @@ static int pxp_terminate_arb_session_and_global(struct intel_pxp *pxp) intel_uncore_write(gt->uncore, PXP_GLOBAL_TERMINATE, 1); + intel_pxp_tee_end_arb_fw_session(pxp, ARB_SESSION); + return ret; } diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c index b5bc0b87a1d0..d9d248b48093 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c @@ -319,3 +319,38 @@ int intel_pxp_tee_cmd_create_arb_session(struct intel_pxp *pxp, return ret; } + +void intel_pxp_tee_end_arb_fw_session(struct intel_pxp *pxp, u32 session_id) +{ + struct drm_i915_private *i915 = pxp->ctrl_gt->i915; + struct pxp42_inv_stream_key_in msg_in = {0}; + struct pxp42_inv_stream_key_out msg_out = {0}; + int ret, trials = 0; + +try_again: + memset(&msg_in, 0, sizeof(msg_in)); + memset(&msg_out, 0, sizeof(msg_out)); + msg_in.header.api_version = PXP_APIVER(4, 2); + msg_in.header.command_id = PXP42_CMDID_INVALIDATE_STREAM_KEY; + msg_in.header.buffer_len = sizeof(msg_in) - sizeof(msg_in.header); + + msg_in.header.stream_id = FIELD_PREP(PXP_CMDHDR_EXTDATA_SESSION_VALID, 1); + msg_in.header.stream_id |= FIELD_PREP(PXP_CMDHDR_EXTDATA_APP_TYPE, 0); + msg_in.header.stream_id |= FIELD_PREP(PXP_CMDHDR_EXTDATA_SESSION_ID, session_id); + + ret = intel_pxp_tee_io_message(pxp, + &msg_in, sizeof(msg_in), + &msg_out, sizeof(msg_out), + NULL); + + /* Cleanup coherency between GT and Firmware is critical, so try again if it fails */ + if ((ret || msg_out.header.status != 0x0) && ++trials < 3) + goto try_again; + + if (ret) + drm_err(&i915->drm, "Failed to send tee msg for inv-stream-key-%d, ret=[%d]\n", + session_id, ret); + else if (msg_out.header.status != 0x0) + drm_warn(&i915->drm, "PXP firmware failed inv-stream-key-%d with status 0x%08x\n", + session_id, msg_out.header.status); +} From patchwork Wed Jan 25 08:26:36 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: 13115115 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 4B285C54EED for ; Wed, 25 Jan 2023 08:26:52 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 844BA897FD; Wed, 25 Jan 2023 08:26:46 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id BB61D88FAE; Wed, 25 Jan 2023 08:26:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; 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25 Jan 2023 00:26:39 -0800 From: Alan Previn To: intel-gfx@lists.freedesktop.org Subject: [PATCH v7 5/6] drm/i915/pxp: Trigger the global teardown for before suspending Date: Wed, 25 Jan 2023 00:26:36 -0800 Message-Id: <20230125082637.118970-6-alan.previn.teres.alexis@intel.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230125082637.118970-1-alan.previn.teres.alexis@intel.com> References: <20230125082637.118970-1-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 , Vivi@freedesktop.org, Greg Kroah-Hartman , Rodrigo , Alexander Usyskin , dri-devel@lists.freedesktop.org, Daniele Ceraolo Spurio , Juston Li , Tomas Winkler Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" A driver bug was recently discovered where the security firmware was receiving internal HW signals indicating that session key expirations had occurred. Architecturally, the firmware was expecting a response from the GuC to acknowledge the event with the firmware side. However the OS was in a suspended state and GuC had been reset. Internal specifications actually required the driver to ensure that all active sessions be properly cleaned up in such cases where the system is suspended and the GuC potentially unable to respond. This patch adds the global teardown code in i915's suspend_prepare code path. v2 : Split __pxp_global_teardown_locked helper into two variants for teardown-with-restart vs teardown-for-suspend/shutdown. Signed-off-by: Alan Previn Reviewed-by: Juston Li Acked-by: Rodrigo Vivi --- drivers/gpu/drm/i915/pxp/intel_pxp.c | 65 +++++++++++++++++--- drivers/gpu/drm/i915/pxp/intel_pxp.h | 1 + drivers/gpu/drm/i915/pxp/intel_pxp_pm.c | 2 +- drivers/gpu/drm/i915/pxp/intel_pxp_session.c | 6 +- drivers/gpu/drm/i915/pxp/intel_pxp_session.h | 5 ++ 5 files changed, 66 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index cfc9af8b3d21..9d4c7724e98e 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -270,6 +270,60 @@ static bool pxp_component_bound(struct intel_pxp *pxp) return bound; } +static int __pxp_global_teardown_final(struct intel_pxp *pxp) +{ + if (!pxp->arb_is_valid) + return 0; + /* + * To ensure synchronous and coherent session teardown completion + * in response to suspend or shutdown triggers, don't use a worker. + */ + intel_pxp_mark_termination_in_progress(pxp); + intel_pxp_terminate(pxp, false); + + if (!wait_for_completion_timeout(&pxp->termination, msecs_to_jiffies(250))) + return -ETIMEDOUT; + + return 0; +} + +static int __pxp_global_teardown_restart(struct intel_pxp *pxp) +{ + if (pxp->arb_is_valid) + return 0; + /* + * The arb-session is currently inactive and we are doing a reset and restart + * due to a runtime event. Use the worker that was designed for this. + */ + pxp_queue_termination(pxp); + + if (!wait_for_completion_timeout(&pxp->termination, msecs_to_jiffies(250))) + return -ETIMEDOUT; + + return 0; +} + +void intel_pxp_end(struct intel_pxp *pxp) +{ + struct drm_i915_private *i915 = pxp->ctrl_gt->i915; + intel_wakeref_t wakeref; + + if (!intel_pxp_is_enabled(pxp)) + return; + + wakeref = intel_runtime_pm_get(&i915->runtime_pm); + + mutex_lock(&pxp->arb_mutex); + + if (__pxp_global_teardown_final(pxp)) + drm_dbg(&i915->drm, "PXP end timed out\n"); + + mutex_unlock(&pxp->arb_mutex); + + intel_pxp_fini_hw(pxp); + intel_runtime_pm_put(&i915->runtime_pm, wakeref); +} + /* * the arb session is restarted from the irq work when we receive the * termination completion interrupt @@ -286,16 +340,9 @@ int intel_pxp_start(struct intel_pxp *pxp) mutex_lock(&pxp->arb_mutex); - if (pxp->arb_is_valid) - goto unlock; - - pxp_queue_termination(pxp); - - if (!wait_for_completion_timeout(&pxp->termination, - msecs_to_jiffies(250))) { - ret = -ETIMEDOUT; + ret = __pxp_global_teardown_restart(pxp); + if (ret) goto unlock; - } /* make sure the compiler doesn't optimize the double access */ barrier(); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h index 9658d3005222..3ded0890cd27 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -27,6 +27,7 @@ void intel_pxp_mark_termination_in_progress(struct intel_pxp *pxp); void intel_pxp_tee_end_arb_fw_session(struct intel_pxp *pxp, u32 arb_session_id); int intel_pxp_start(struct intel_pxp *pxp); +void intel_pxp_end(struct intel_pxp *pxp); int intel_pxp_key_check(struct intel_pxp *pxp, struct drm_i915_gem_object *obj, diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c index 892d39cc61c1..e427464aa131 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c @@ -16,7 +16,7 @@ void intel_pxp_suspend_prepare(struct intel_pxp *pxp) if (!intel_pxp_is_enabled(pxp)) return; - pxp->arb_is_valid = false; + intel_pxp_end(pxp); intel_pxp_invalidate(pxp); } diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c index 74ed7e16e481..448cacb0465d 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c @@ -115,11 +115,11 @@ static int pxp_terminate_arb_session_and_global(struct intel_pxp *pxp) return ret; } -static void pxp_terminate(struct intel_pxp *pxp) +void intel_pxp_terminate(struct intel_pxp *pxp, bool post_invalidation_needs_restart) { int ret; - pxp->hw_state_invalidated = true; + pxp->hw_state_invalidated = post_invalidation_needs_restart; /* * if we fail to submit the termination there is no point in waiting for @@ -167,7 +167,7 @@ static void pxp_session_work(struct work_struct *work) if (events & PXP_TERMINATION_REQUEST) { events &= ~PXP_TERMINATION_COMPLETE; - pxp_terminate(pxp); + intel_pxp_terminate(pxp, true); } if (events & PXP_TERMINATION_COMPLETE) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_session.h b/drivers/gpu/drm/i915/pxp/intel_pxp_session.h index 903ac52cffa1..ba5788127109 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_session.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_session.h @@ -12,9 +12,14 @@ struct intel_pxp; #ifdef CONFIG_DRM_I915_PXP void intel_pxp_session_management_init(struct intel_pxp *pxp); +void intel_pxp_terminate(struct intel_pxp *pxp, bool post_invalidation_needs_restart); #else static inline void intel_pxp_session_management_init(struct intel_pxp *pxp) { } + +static inline void intel_pxp_terminate(struct intel_pxp *pxp, bool post_invalidation_needs_restart) +{ +} #endif #endif /* __INTEL_PXP_SESSION_H__ */ From patchwork Wed Jan 25 08:26:37 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: 13115117 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 DA95CC54E94 for ; Wed, 25 Jan 2023 08:27:01 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AC53510E73A; Wed, 25 Jan 2023 08:26:47 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id EF2FA897FD; Wed, 25 Jan 2023 08:26:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1674635205; x=1706171205; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=hIhpJ8wB01aRUwdbNx7VohfjOmCO0vJbtWemK7jr8gA=; b=avvD578GHCMVAhrOrvsebAvJcRBFAdkmlvTb2TOhU0ZnJ/TFDHEZE+hi cHTnQHhnPWyoSzvxtqkSi+zxVqy0ah51qy4NqHTh5pqJf5Ad6NSiG4Xs7 mcYyA0KC9ZInob1vssdGz1EjHeHU/gTMyh1v0o3Kppw3aw/KFT7GcP9HI 3CGzy1SuZACf8rVPQfnCPyhBUkx1/B83Swhq5B6yUMA6r4yLS8LE6PUI8 1pz+MSYYWJ0uYJxCI+96BWZYAgvZUhktMMa/6nZcbRreAQaoQfwkinJZi 336dQCb1ZNVm4V7/Zmg49k9vCDB7vnZNZN2059QH2XQ50QjAaDwFuxJHS Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10600"; a="325180422" X-IronPort-AV: E=Sophos;i="5.97,244,1669104000"; d="scan'208";a="325180422" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Jan 2023 00:26:42 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10600"; a="662426130" X-IronPort-AV: E=Sophos;i="5.97,244,1669104000"; d="scan'208";a="662426130" Received: from aalteres-desk.fm.intel.com ([10.80.57.53]) by orsmga002.jf.intel.com with ESMTP; 25 Jan 2023 00:26:39 -0800 From: Alan Previn To: intel-gfx@lists.freedesktop.org Subject: [PATCH v7 6/6] drm/i915/pxp: Pxp hw init should be in resume_complete Date: Wed, 25 Jan 2023 00:26:37 -0800 Message-Id: <20230125082637.118970-7-alan.previn.teres.alexis@intel.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230125082637.118970-1-alan.previn.teres.alexis@intel.com> References: <20230125082637.118970-1-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 , Vivi@freedesktop.org, Greg Kroah-Hartman , Rodrigo , Alexander Usyskin , dri-devel@lists.freedesktop.org, Daniele Ceraolo Spurio , Juston Li , Tomas Winkler Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" During suspend flow, i915 currently achors' on the pm_suspend_prepare callback as the location where we quiesce the entire GPU and perform all necessary cleanup in order to go into suspend. PXP is also called during this time to perform the arbitration session teardown (with the assurance no additional GEM IOCTLs will come after that could restart the session). However, if other devices or drivers fail their suspend_prepare, the system will not go into suspend and i915 will be expected to resume operation. In this case, we need to re-initialize the PXP hardware and this really should be done within the pm_resume_complete callback which is the correct opposing function in the resume sequence to match pm_suspend_prepare of the suspend sequence. Because this callback is the last thing at the end of resuming we expect little to no impact to the rest of the i915 resume sequence with this change. Signed-off-by: Alan Previn Reviewed-by: Daniele Ceraolo Spurio Acked-by: Rodrigo Vivi --- drivers/gpu/drm/i915/i915_driver.c | 20 ++++++++++++++++++-- drivers/gpu/drm/i915/pxp/intel_pxp_pm.c | 2 +- drivers/gpu/drm/i915/pxp/intel_pxp_pm.h | 6 +++--- 3 files changed, 22 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c index 6469c7c1e154..122736b48938 100644 --- a/drivers/gpu/drm/i915/i915_driver.c +++ b/drivers/gpu/drm/i915/i915_driver.c @@ -1167,6 +1167,13 @@ static bool suspend_to_idle(struct drm_i915_private *dev_priv) return false; } +static void i915_drm_complete(struct drm_device *dev) +{ + struct drm_i915_private *i915 = to_i915(dev); + + intel_pxp_resume_complete(i915->pxp); +} + static int i915_drm_prepare(struct drm_device *dev) { struct drm_i915_private *i915 = to_i915(dev); @@ -1367,8 +1374,6 @@ static int i915_drm_resume(struct drm_device *dev) i915_gem_resume(dev_priv); - intel_pxp_resume(dev_priv->pxp); - intel_modeset_init_hw(dev_priv); intel_init_clock_gating(dev_priv); intel_hpd_init(dev_priv); @@ -1560,6 +1565,16 @@ static int i915_pm_resume(struct device *kdev) return i915_drm_resume(&i915->drm); } +static void i915_pm_complete(struct device *kdev) +{ + struct drm_i915_private *i915 = kdev_to_i915(kdev); + + if (i915->drm.switch_power_state == DRM_SWITCH_POWER_OFF) + return; + + i915_drm_complete(&i915->drm); +} + /* freeze: before creating the hibernation_image */ static int i915_pm_freeze(struct device *kdev) { @@ -1780,6 +1795,7 @@ const struct dev_pm_ops i915_pm_ops = { .suspend_late = i915_pm_suspend_late, .resume_early = i915_pm_resume_early, .resume = i915_pm_resume, + .complete = i915_pm_complete, /* * S4 event handlers diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c index e427464aa131..4f836b317424 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c @@ -34,7 +34,7 @@ void intel_pxp_suspend(struct intel_pxp *pxp) } } -void intel_pxp_resume(struct intel_pxp *pxp) +void intel_pxp_resume_complete(struct intel_pxp *pxp) { if (!intel_pxp_is_enabled(pxp)) return; diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_pm.h b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.h index 586be769104f..06b46f535b42 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_pm.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.h @@ -11,7 +11,7 @@ struct intel_pxp; #ifdef CONFIG_DRM_I915_PXP void intel_pxp_suspend_prepare(struct intel_pxp *pxp); void intel_pxp_suspend(struct intel_pxp *pxp); -void intel_pxp_resume(struct intel_pxp *pxp); +void intel_pxp_resume_complete(struct intel_pxp *pxp); void intel_pxp_runtime_suspend(struct intel_pxp *pxp); #else static inline void intel_pxp_suspend_prepare(struct intel_pxp *pxp) @@ -22,7 +22,7 @@ static inline void intel_pxp_suspend(struct intel_pxp *pxp) { } -static inline void intel_pxp_resume(struct intel_pxp *pxp) +static inline void intel_pxp_resume_complete(struct intel_pxp *pxp) { } @@ -32,6 +32,6 @@ static inline void intel_pxp_runtime_suspend(struct intel_pxp *pxp) #endif static inline void intel_pxp_runtime_resume(struct intel_pxp *pxp) { - intel_pxp_resume(pxp); + intel_pxp_resume_complete(pxp); } #endif /* __INTEL_PXP_PM_H__ */