From patchwork Wed Jan 6 23:12:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 12002407 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F0F6FC433E0 for ; Wed, 6 Jan 2021 23:12:25 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id AD060225AC for ; Wed, 6 Jan 2021 23:12:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AD060225AC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 079406E30C; Wed, 6 Jan 2021 23:12:25 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id E58556E314 for ; Wed, 6 Jan 2021 23:12:23 +0000 (UTC) IronPort-SDR: bjyz6Y8oPmd9JzFSbbzi/FB7oIbAi3Xo88PxDcJ7CiqVtSYmFPddQSKWD02Zch3pU5wJHg0qc2 K3k7E8sjElvA== X-IronPort-AV: E=McAfee;i="6000,8403,9856"; a="195900065" X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="195900065" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jan 2021 15:12:23 -0800 IronPort-SDR: BH981l6ZypEtkS+SiSBFKZwB2/RIObaYHKrYf+Pe+tUX4EZCPCH+X1MRdPH/3kuy1pkygh8JOQ Hr7ST9r2oJGw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="567566119" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga006.fm.intel.com with ESMTP; 06 Jan 2021 15:12:23 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Wed, 6 Jan 2021 15:12:11 -0800 Message-Id: <20210106231223.8323-2-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210106231223.8323-1-sean.z.huang@intel.com> References: <20210106231223.8323-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [RFC-v19 01/13] drm/i915/pxp: Introduce Intel PXP 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: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" PXP (Protected Xe Path) is an i915 componment, available on GEN12+, that helps to establish the hardware protected session and manage the status of the alive software session, as well as its life cycle. This patch series is to allow the kernel space to create and manage a single hardware session (a.k.a default session or arbitrary session). So Mesa can allocate the protected buffer, which is encrypted with the leverage of the arbitrary hardware session. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/Kconfig | 22 +++++++++++++++ drivers/gpu/drm/i915/Makefile | 5 ++++ drivers/gpu/drm/i915/gt/intel_gt.c | 5 ++++ drivers/gpu/drm/i915/gt/intel_gt_types.h | 3 ++ drivers/gpu/drm/i915/pxp/intel_pxp.c | 29 ++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp.h | 25 +++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_context.c | 25 +++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_context.h | 15 ++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_types.h | 23 ++++++++++++++++ 9 files changed, 152 insertions(+) create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp.c create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp.h create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_context.c create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_context.h create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_types.h diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig index 1e1cb245fca7..594775c11e19 100644 --- a/drivers/gpu/drm/i915/Kconfig +++ b/drivers/gpu/drm/i915/Kconfig @@ -130,6 +130,28 @@ config DRM_I915_GVT_KVMGT Choose this option if you want to enable KVMGT support for Intel GVT-g. +config DRM_I915_PXP + bool "Enable Intel PXP support for Intel Gen12+ platform" + depends on DRM_I915 + select INTEL_MEI + select INTEL_MEI_ME + select INTEL_MEI_TXE + select INTEL_MEI_PXP + default y + help + This option selects INTEL_MEI_ME if it isn't already selected to + enabled full PXP Services on Intel platforms. + + PXP (Protected Xe Path) is an i915 componment, available on GEN12+, + that helps to establish the hardware protected session and manage + the status of the alive software session, as well as its life cycle. + + This patch series is to allow the kernel space to create and + manage a single hardware session (a.k.a default session or + arbitrary session). So Mesa can allocate the protected buffer, + which is encrypted with the leverage of the arbitrary hardware + session. + menu "drm/i915 Debugging" depends on DRM_I915 depends on EXPERT diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 4074d8cb0d6e..cbf2f0594b4d 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -259,6 +259,11 @@ i915-y += \ i915-y += i915_perf.o +# Protected execution platform (PXP) support +i915-$(CONFIG_DRM_I915_PXP) += \ + pxp/intel_pxp.o \ + pxp/intel_pxp_context.o + # Post-mortem debug and GPU hang state capture i915-$(CONFIG_DRM_I915_CAPTURE_ERROR) += i915_gpu_error.o i915-$(CONFIG_DRM_I915_SELFTEST) += \ diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c index d8e1ab412634..336ad7deae06 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt.c +++ b/drivers/gpu/drm/i915/gt/intel_gt.c @@ -18,6 +18,7 @@ #include "intel_uncore.h" #include "intel_pm.h" #include "shmem_utils.h" +#include "pxp/intel_pxp.h" void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915) { @@ -584,6 +585,8 @@ int intel_gt_init(struct intel_gt *gt) if (err) goto err_gt; + intel_pxp_init(>->pxp); + goto out_fw; err_gt: __intel_gt_disable(gt); @@ -607,6 +610,8 @@ void intel_gt_driver_remove(struct intel_gt *gt) { __intel_gt_disable(gt); + intel_pxp_fini(>->pxp); + intel_uc_driver_remove(>->uc); intel_engines_release(gt); diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h index a83d3e18254d..c4760e2722fd 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_types.h +++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h @@ -23,6 +23,7 @@ #include "intel_rc6_types.h" #include "intel_rps_types.h" #include "intel_wakeref.h" +#include "pxp/intel_pxp_types.h" struct drm_i915_private; struct i915_ggtt; @@ -145,6 +146,8 @@ struct intel_gt { /* Slice/subslice/EU info */ struct sseu_dev_info sseu; } info; + + struct intel_pxp pxp; }; enum intel_gt_scratch_field { diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c new file mode 100644 index 000000000000..9bc3c7e30654 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -0,0 +1,29 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright(c) 2020 Intel Corporation. + */ +#include "i915_drv.h" +#include "intel_pxp.h" +#include "intel_pxp_context.h" + +void intel_pxp_init(struct intel_pxp *pxp) +{ + struct intel_gt *gt = container_of(pxp, struct intel_gt, pxp); + + if (INTEL_GEN(gt->i915) < 12) + return; + + intel_pxp_ctx_init(&pxp->ctx); + + drm_info(>->i915->drm, "Protected Xe Path (PXP) protected content support initialized\n"); +} + +void intel_pxp_fini(struct intel_pxp *pxp) +{ + struct intel_gt *gt = container_of(pxp, struct intel_gt, pxp); + + if (INTEL_GEN(gt->i915) < 12) + return; + + intel_pxp_ctx_fini(&pxp->ctx); +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h new file mode 100644 index 000000000000..f47bc6bea34f --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_H__ +#define __INTEL_PXP_H__ + +#include "intel_pxp_types.h" + +#ifdef CONFIG_DRM_I915_PXP +void intel_pxp_init(struct intel_pxp *pxp); +void intel_pxp_fini(struct intel_pxp *pxp); +#else +static inline void intel_pxp_init(struct intel_pxp *pxp) +{ + return 0; +} + +static inline void intel_pxp_fini(struct intel_pxp *pxp) +{ +} +#endif + +#endif /* __INTEL_PXP_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_context.c b/drivers/gpu/drm/i915/pxp/intel_pxp_context.c new file mode 100644 index 000000000000..2be6bf2f0d0f --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_context.c @@ -0,0 +1,25 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#include "intel_pxp_context.h" + +/** + * intel_pxp_ctx_init - To init a pxp context. + * @ctx: pointer to ctx structure. + */ +void intel_pxp_ctx_init(struct pxp_context *ctx) +{ + mutex_init(&ctx->mutex); + ctx->inited = true; +} + +/** + * intel_pxp_ctx_fini - To finish the pxp context. + * @ctx: pointer to ctx structure. + */ +void intel_pxp_ctx_fini(struct pxp_context *ctx) +{ + ctx->inited = false; +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_context.h b/drivers/gpu/drm/i915/pxp/intel_pxp_context.h new file mode 100644 index 000000000000..f51021c33d45 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_context.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_CONTEXT_H__ +#define __INTEL_PXP_CONTEXT_H__ + +#include +#include "intel_pxp_types.h" + +void intel_pxp_ctx_init(struct pxp_context *ctx); +void intel_pxp_ctx_fini(struct pxp_context *ctx); + +#endif /* __INTEL_PXP_CONTEXT_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_types.h b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h new file mode 100644 index 000000000000..f9b40ea98b1b --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_TYPES_H__ +#define __INTEL_PXP_TYPES_H__ + +#include + +/* struct pxp_context - Represents combined view of driver and logical HW states. */ +struct pxp_context { + /** @mutex: mutex to protect the pxp context */ + struct mutex mutex; + + bool inited; +}; + +struct intel_pxp { + struct pxp_context ctx; +}; + +#endif /* __INTEL_PXP_TYPES_H__ */ From patchwork Wed Jan 6 23:12:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 12002431 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A66B3C433E0 for ; Wed, 6 Jan 2021 23:12:38 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 68026225AC for ; Wed, 6 Jan 2021 23:12:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 68026225AC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DD63F6E328; Wed, 6 Jan 2021 23:12:32 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id CACCB6E30F for ; Wed, 6 Jan 2021 23:12:23 +0000 (UTC) IronPort-SDR: m/ZuewBJU2u1IthMjhmwmKaaxRwMy87PsOp3MsA8Rf3SfS9pvQ7Cs2vMuwyN1zaF6M/Gbr/EAZ EkkGqhKBVEGA== X-IronPort-AV: E=McAfee;i="6000,8403,9856"; a="195900067" X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="195900067" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jan 2021 15:12:23 -0800 IronPort-SDR: UoyriuwiwnfVleGg3sDKc/J7V5mbKJ8gjqE6I4O9yVqaLlviKYYcajPu69J2a3lTWVDaLfJCF3 /OqZb4XQq79Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="567566120" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga006.fm.intel.com with ESMTP; 06 Jan 2021 15:12:23 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Wed, 6 Jan 2021 15:12:12 -0800 Message-Id: <20210106231223.8323-3-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210106231223.8323-1-sean.z.huang@intel.com> References: <20210106231223.8323-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [RFC-v19 02/13] drm/i915/pxp: set KCR reg init during the boot time 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: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Set the KCR init during the boot time, which is required by hardware, to allow us doing further protection operation such as sending commands to GPU or TEE. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/pxp/intel_pxp.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index 9bc3c7e30654..f566a4fda044 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -6,6 +6,12 @@ #include "intel_pxp.h" #include "intel_pxp_context.h" +/* KCR register definitions */ +#define KCR_INIT _MMIO(0x320f0) +#define KCR_INIT_MASK_SHIFT (16) +/* Setting KCR Init bit is required after system boot */ +#define KCR_INIT_ALLOW_DISPLAY_ME_WRITES (BIT(14) | (BIT(14) << KCR_INIT_MASK_SHIFT)) + void intel_pxp_init(struct intel_pxp *pxp) { struct intel_gt *gt = container_of(pxp, struct intel_gt, pxp); @@ -15,6 +21,8 @@ void intel_pxp_init(struct intel_pxp *pxp) intel_pxp_ctx_init(&pxp->ctx); + intel_uncore_write(gt->uncore, KCR_INIT, KCR_INIT_ALLOW_DISPLAY_ME_WRITES); + drm_info(>->i915->drm, "Protected Xe Path (PXP) protected content support initialized\n"); } From patchwork Wed Jan 6 23:12:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 12002433 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 33967C43381 for ; Wed, 6 Jan 2021 23:12:39 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id E204823340 for ; Wed, 6 Jan 2021 23:12:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E204823340 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 036466E32A; Wed, 6 Jan 2021 23:12:33 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0BC8B6E30F for ; Wed, 6 Jan 2021 23:12:24 +0000 (UTC) IronPort-SDR: cE6wbIEsLKWi9cRzxZj1AfuZenBvC9IoRD+CVXm0JuIImXZFS0m5eiR9Goucupds5bcZX2MVPB NJ9SskdNokxw== X-IronPort-AV: E=McAfee;i="6000,8403,9856"; a="195900068" X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="195900068" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jan 2021 15:12:23 -0800 IronPort-SDR: /knQHWwnZqpzU8zZh/WFr93+UcHTrqF5aUeHrTtFSg1s644w0VOc5Rl/wXJ5DSbLSdwZ7o8aSJ e1p3r0M362Mg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="567566121" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga006.fm.intel.com with ESMTP; 06 Jan 2021 15:12:23 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Wed, 6 Jan 2021 15:12:13 -0800 Message-Id: <20210106231223.8323-4-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210106231223.8323-1-sean.z.huang@intel.com> References: <20210106231223.8323-1-sean.z.huang@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [RFC-v19 03/13] drm/i915/pxp: Implement funcs to create the TEE channel 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: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Implement the funcs to create the TEE channel, so kernel can send the TEE commands directly to TEE for creating the arbitrary (defualt) session. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/Makefile | 3 +- drivers/gpu/drm/i915/i915_drv.c | 1 + drivers/gpu/drm/i915/i915_drv.h | 6 + drivers/gpu/drm/i915/pxp/intel_pxp.c | 5 + drivers/gpu/drm/i915/pxp/intel_pxp_tee.c | 137 +++++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_tee.h | 14 +++ include/drm/i915_component.h | 1 + include/drm/i915_pxp_tee_interface.h | 45 ++++++++ 8 files changed, 211 insertions(+), 1 deletion(-) create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_tee.c create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_tee.h create mode 100644 include/drm/i915_pxp_tee_interface.h diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index cbf2f0594b4d..5494c30cb54f 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -262,7 +262,8 @@ i915-y += i915_perf.o # Protected execution platform (PXP) support i915-$(CONFIG_DRM_I915_PXP) += \ pxp/intel_pxp.o \ - pxp/intel_pxp_context.o + pxp/intel_pxp_context.o \ + pxp/intel_pxp_tee.o # Post-mortem debug and GPU hang state capture i915-$(CONFIG_DRM_I915_CAPTURE_ERROR) += i915_gpu_error.o diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 3e504247f2da..207d50226e64 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -322,6 +322,7 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv) mutex_init(&dev_priv->wm.wm_mutex); mutex_init(&dev_priv->pps_mutex); mutex_init(&dev_priv->hdcp_comp_mutex); + mutex_init(&dev_priv->pxp_tee_comp_mutex); i915_memcpy_init_early(dev_priv); intel_runtime_pm_init_early(&dev_priv->runtime_pm); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 5e5bcef20e33..c2f47daef5a5 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1209,6 +1209,12 @@ struct drm_i915_private { /* Mutex to protect the above hdcp component related values. */ struct mutex hdcp_comp_mutex; + struct i915_pxp_comp_master *pxp_tee_master; + bool pxp_tee_comp_added; + + /* Mutex to protect the above pxp_tee component related values. */ + struct mutex pxp_tee_comp_mutex; + I915_SELFTEST_DECLARE(struct i915_selftest_stash selftest;) /* diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index f566a4fda044..c819f3791ee4 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -5,6 +5,7 @@ #include "i915_drv.h" #include "intel_pxp.h" #include "intel_pxp_context.h" +#include "intel_pxp_tee.h" /* KCR register definitions */ #define KCR_INIT _MMIO(0x320f0) @@ -23,6 +24,8 @@ void intel_pxp_init(struct intel_pxp *pxp) intel_uncore_write(gt->uncore, KCR_INIT, KCR_INIT_ALLOW_DISPLAY_ME_WRITES); + intel_pxp_tee_component_init(pxp); + drm_info(>->i915->drm, "Protected Xe Path (PXP) protected content support initialized\n"); } @@ -33,5 +36,7 @@ void intel_pxp_fini(struct intel_pxp *pxp) if (INTEL_GEN(gt->i915) < 12) return; + intel_pxp_tee_component_fini(pxp); + intel_pxp_ctx_fini(&pxp->ctx); } diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c new file mode 100644 index 000000000000..5a1ffcc703e2 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c @@ -0,0 +1,137 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright(c) 2020 Intel Corporation. + */ + +#include +#include "drm/i915_pxp_tee_interface.h" +#include "drm/i915_component.h" +#include "i915_drv.h" +#include "intel_pxp.h" +#include "intel_pxp_context.h" +#include "intel_pxp_tee.h" + +static int intel_pxp_tee_io_message(struct intel_pxp *pxp, + void *msg_in, u32 msg_in_size, + void *msg_out, u32 *msg_out_size_ptr, + u32 msg_out_buf_size) +{ + int ret; + struct intel_gt *gt = container_of(pxp, typeof(*gt), pxp); + struct drm_i915_private *i915 = gt->i915; + struct i915_pxp_comp_master *pxp_tee_master = i915->pxp_tee_master; + + if (!pxp_tee_master || !msg_in || !msg_out || !msg_out_size_ptr) + return -EINVAL; + + lockdep_assert_held(&i915->pxp_tee_comp_mutex); + + if (drm_debug_enabled(DRM_UT_DRIVER)) + print_hex_dump(KERN_DEBUG, "TEE input message binaries:", + DUMP_PREFIX_OFFSET, 4, 4, msg_in, msg_in_size, true); + + ret = pxp_tee_master->ops->send(pxp_tee_master->tee_dev, msg_in, msg_in_size); + if (ret) { + drm_err(&i915->drm, "Failed to send TEE message\n"); + return -EFAULT; + } + + ret = pxp_tee_master->ops->receive(pxp_tee_master->tee_dev, msg_out, msg_out_buf_size); + if (ret < 0) { + drm_err(&i915->drm, "Failed to receive TEE message\n"); + return -EFAULT; + } + + if (ret > msg_out_buf_size) { + drm_err(&i915->drm, "Failed to receive TEE message due to unexpected output size\n"); + return -EFAULT; + } + + *msg_out_size_ptr = ret; + ret = 0; + + if (drm_debug_enabled(DRM_UT_DRIVER)) + print_hex_dump(KERN_DEBUG, "TEE output message binaries:", + DUMP_PREFIX_OFFSET, 4, 4, msg_out, *msg_out_size_ptr, true); + + return ret; +} + +/** + * i915_pxp_tee_component_bind - bind funciton to pass the function pointers to pxp_tee + * @i915_kdev: pointer to i915 kernel device + * @tee_kdev: pointer to tee kernel device + * @data: pointer to pxp_tee_master containing the function pointers + * + * This bind function is called during the system boot or resume from system sleep. + * + * Return: return 0 if successful. + */ +static int i915_pxp_tee_component_bind(struct device *i915_kdev, + struct device *tee_kdev, void *data) +{ + struct drm_i915_private *i915 = kdev_to_i915(i915_kdev); + + if (!i915 || !tee_kdev || !data) + return -EPERM; + + mutex_lock(&i915->pxp_tee_comp_mutex); + i915->pxp_tee_master = (struct i915_pxp_comp_master *)data; + i915->pxp_tee_master->tee_dev = tee_kdev; + mutex_unlock(&i915->pxp_tee_comp_mutex); + + return 0; +} + +static void i915_pxp_tee_component_unbind(struct device *i915_kdev, + struct device *tee_kdev, void *data) +{ + struct drm_i915_private *i915 = kdev_to_i915(i915_kdev); + + if (!i915 || !tee_kdev || !data) + return; + + mutex_lock(&i915->pxp_tee_comp_mutex); + i915->pxp_tee_master = NULL; + mutex_unlock(&i915->pxp_tee_comp_mutex); +} + +static const struct component_ops i915_pxp_tee_component_ops = { + .bind = i915_pxp_tee_component_bind, + .unbind = i915_pxp_tee_component_unbind, +}; + +void intel_pxp_tee_component_init(struct intel_pxp *pxp) +{ + int ret; + struct intel_gt *gt = container_of(pxp, typeof(*gt), pxp); + struct drm_i915_private *i915 = gt->i915; + + ret = component_add_typed(i915->drm.dev, &i915_pxp_tee_component_ops, + I915_COMPONENT_PXP); + if (ret < 0) { + drm_err(&i915->drm, "Failed at component add(%d)\n", ret); + return; + } + + mutex_lock(&i915->pxp_tee_comp_mutex); + i915->pxp_tee_comp_added = true; + mutex_unlock(&i915->pxp_tee_comp_mutex); +} + +void intel_pxp_tee_component_fini(struct intel_pxp *pxp) +{ + struct intel_gt *gt = container_of(pxp, typeof(*gt), pxp); + struct drm_i915_private *i915 = gt->i915; + + mutex_lock(&i915->pxp_tee_comp_mutex); + if (!i915->pxp_tee_comp_added) { + mutex_unlock(&i915->pxp_tee_comp_mutex); + return; + } + + i915->pxp_tee_comp_added = false; + mutex_unlock(&i915->pxp_tee_comp_mutex); + + component_del(i915->drm.dev, &i915_pxp_tee_component_ops); +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.h b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.h new file mode 100644 index 000000000000..4b5e3edb1d9b --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_TEE_H__ +#define __INTEL_PXP_TEE_H__ + +#include "intel_pxp.h" + +void intel_pxp_tee_component_init(struct intel_pxp *pxp); +void intel_pxp_tee_component_fini(struct intel_pxp *pxp); + +#endif /* __INTEL_PXP_TEE_H__ */ diff --git a/include/drm/i915_component.h b/include/drm/i915_component.h index 55c3b123581b..c1e2a43d2d1e 100644 --- a/include/drm/i915_component.h +++ b/include/drm/i915_component.h @@ -29,6 +29,7 @@ enum i915_component_type { I915_COMPONENT_AUDIO = 1, I915_COMPONENT_HDCP, + I915_COMPONENT_PXP }; /* MAX_PORT is the number of port diff --git a/include/drm/i915_pxp_tee_interface.h b/include/drm/i915_pxp_tee_interface.h new file mode 100644 index 000000000000..3999e255e145 --- /dev/null +++ b/include/drm/i915_pxp_tee_interface.h @@ -0,0 +1,45 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2020 Intel Corporation + * + * Authors: + * Vitaly Lubart + */ + +#ifndef _I915_PXP_TEE_INTERFACE_H_ +#define _I915_PXP_TEE_INTERFACE_H_ + +#include +#include + +/** + * struct i915_pxp_component_ops - ops for PXP services. + * @owner: Module providing the ops + * @send: sends data to PXP + * @receive: receives data from PXP + */ +struct i915_pxp_component_ops { + /** + * @owner: owner of the module provding the ops + */ + struct module *owner; + + int (*send)(struct device *dev, const void *message, size_t size); + int (*receive)(struct device *dev, void *buffer, size_t size); +}; + +/** + * struct i915_pxp_component_master - Used for communication between i915 + * and TEE drivers for the PXP services + * @tee_dev: device that provide the PXP service from TEE Bus. + * @pxp_ops: Ops implemented by TEE driver, used by i915 driver. + */ +struct i915_pxp_comp_master { + struct device *tee_dev; + const struct i915_pxp_component_ops *ops; + + /* To protect the above members. */ + struct mutex mutex; +}; + +#endif /* _I915_TEE_PXP_INTERFACE_H_ */ From patchwork Wed Jan 6 23:12:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 12002421 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B1411C433E0 for ; Wed, 6 Jan 2021 23:12:34 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 7CCA9225AC for ; Wed, 6 Jan 2021 23:12:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7CCA9225AC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 04F436E329; Wed, 6 Jan 2021 23:12:26 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 30CD96E314 for ; Wed, 6 Jan 2021 23:12:24 +0000 (UTC) IronPort-SDR: jGnNn5G9MPTKUBq1v+ZEvTfai9ALlvFBQ5s5yosOgUz+zsp6TS2vQQJXnC92wUa1qrY5lUl3q+ KReLM4tvva9A== X-IronPort-AV: E=McAfee;i="6000,8403,9856"; a="195900069" X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="195900069" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jan 2021 15:12:23 -0800 IronPort-SDR: YcUlAl4r2OpCQSbxFzYxB7ZXHq/8AA/yrIDDl90HFGATPaOz2wEsjFPgVG+uevH5yMkVYlB4Gp GyvyUlFFNI0Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="567566122" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga006.fm.intel.com with ESMTP; 06 Jan 2021 15:12:23 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Wed, 6 Jan 2021 15:12:14 -0800 Message-Id: <20210106231223.8323-5-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210106231223.8323-1-sean.z.huang@intel.com> References: <20210106231223.8323-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [RFC-v19 04/13] drm/i915/pxp: Create the arbitrary session after boot 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: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Create the arbitrary session, with the fixed session id 0xf, after system boot, for the case that application allocates the protected buffer without establishing any protection session. Because the hardware requires at least one alive session for protected buffer creation. This arbitrary session needs to be re-created after teardown or power event because hardware encryption key won't be valid after such cases. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/Makefile | 1 + drivers/gpu/drm/i915/pxp/intel_pxp.c | 1 + drivers/gpu/drm/i915/pxp/intel_pxp.h | 16 +++ drivers/gpu/drm/i915/pxp/intel_pxp_arb.c | 131 +++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_arb.h | 16 +++ drivers/gpu/drm/i915/pxp/intel_pxp_context.h | 1 + drivers/gpu/drm/i915/pxp/intel_pxp_tee.c | 73 +++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_tee.h | 3 + drivers/gpu/drm/i915/pxp/intel_pxp_types.h | 26 ++++ 9 files changed, 268 insertions(+) create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_arb.c create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_arb.h diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 5494c30cb54f..af9e87e4c63a 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -262,6 +262,7 @@ i915-y += i915_perf.o # Protected execution platform (PXP) support i915-$(CONFIG_DRM_I915_PXP) += \ pxp/intel_pxp.o \ + pxp/intel_pxp_arb.o \ pxp/intel_pxp_context.o \ pxp/intel_pxp_tee.o diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index c819f3791ee4..3868e8c697f9 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -6,6 +6,7 @@ #include "intel_pxp.h" #include "intel_pxp_context.h" #include "intel_pxp_tee.h" +#include "intel_pxp_arb.h" /* KCR register definitions */ #define KCR_INIT _MMIO(0x320f0) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h index f47bc6bea34f..8fc91e900b16 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -8,6 +8,22 @@ #include "intel_pxp_types.h" +enum pxp_session_types { + SESSION_TYPE_TYPE0 = 0, + SESSION_TYPE_TYPE1 = 1, + + SESSION_TYPE_MAX +}; + +enum pxp_protection_modes { + PROTECTION_MODE_NONE = 0, + PROTECTION_MODE_LM = 2, + PROTECTION_MODE_HM = 3, + PROTECTION_MODE_SM = 6, + + PROTECTION_MODE_ALL +}; + #ifdef CONFIG_DRM_I915_PXP void intel_pxp_init(struct intel_pxp *pxp); void intel_pxp_fini(struct intel_pxp *pxp); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_arb.c b/drivers/gpu/drm/i915/pxp/intel_pxp_arb.c new file mode 100644 index 000000000000..640d7103c04d --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_arb.c @@ -0,0 +1,131 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#include "gt/intel_context.h" +#include "gt/intel_engine_pm.h" + +#include "intel_pxp_types.h" +#include "intel_pxp_arb.h" +#include "intel_pxp.h" +#include "intel_pxp_tee.h" + +#define GEN12_KCR_SIP _MMIO(0x32260) /* KCR type0 session in play 0-31 */ + +/* Arbitrary session */ +#define ARB_SESSION_INDEX 0xf +#define ARB_SESSION_TYPE SESSION_TYPE_TYPE0 + +bool intel_pxp_arb_session_is_in_play(struct intel_pxp *pxp) +{ + u32 regval_sip = 0; + intel_wakeref_t wakeref; + struct intel_gt *gt = container_of(pxp, struct intel_gt, pxp); + + with_intel_runtime_pm(>->i915->runtime_pm, wakeref) { + regval_sip = intel_uncore_read(gt->uncore, GEN12_KCR_SIP); + } + + return regval_sip & BIT(ARB_SESSION_INDEX); +} + +/* wait hw session_in_play reg to match the current sw state */ +static int wait_arb_hw_sw_state(struct intel_pxp *pxp) +{ + const int max_retry = 10; + const int ms_delay = 10; + int retry = 0; + int ret; + struct pxp_protected_session *arb = &pxp->ctx.arb_session; + + ret = -EINVAL; + for (retry = 0; retry < max_retry; retry++) { + if (intel_pxp_arb_session_is_in_play(pxp) == + arb->is_in_play) { + ret = 0; + break; + } + + msleep(ms_delay); + } + + return ret; +} + +static void arb_session_entry_init(struct intel_pxp *pxp) +{ + struct pxp_protected_session *arb = &pxp->ctx.arb_session; + + arb->type = ARB_SESSION_TYPE; + arb->protection_mode = PROTECTION_MODE_HM; + arb->index = ARB_SESSION_INDEX; + arb->is_in_play = false; +} + +static int intel_pxp_arb_reserve_session(struct intel_pxp *pxp) +{ + int ret; + + lockdep_assert_held(&pxp->ctx.mutex); + + arb_session_entry_init(pxp); + ret = wait_arb_hw_sw_state(pxp); + + return ret; +} + +/** + * intel_pxp_arb_mark_session_in_play - To put an reserved protected session to "in_play" state + * @pxp: pointer to pxp struct. + * + * Return: status. 0 means update is successful. + */ +static int intel_pxp_arb_mark_session_in_play(struct intel_pxp *pxp) +{ + struct pxp_protected_session *arb = &pxp->ctx.arb_session; + + lockdep_assert_held(&pxp->ctx.mutex); + + if (arb->is_in_play) + return -EINVAL; + + arb->is_in_play = true; + return 0; +} + +int intel_pxp_arb_create_session(struct intel_pxp *pxp) +{ + int ret; + struct intel_gt *gt = container_of(pxp, typeof(*gt), pxp); + + lockdep_assert_held(&pxp->ctx.mutex); + + if (pxp->ctx.flag_display_hm_surface_keys) { + drm_err(>->i915->drm, "%s: arb session is alive so skipping the creation\n", + __func__); + return 0; + } + + ret = intel_pxp_arb_reserve_session(pxp); + if (ret) { + drm_err(>->i915->drm, "Failed to reserve arb session\n"); + return ret; + } + + ret = intel_pxp_tee_cmd_create_arb_session(pxp, ARB_SESSION_INDEX); + if (ret) { + drm_err(>->i915->drm, "Failed to send tee cmd for arb session creation\n"); + return ret; + } + + ret = intel_pxp_arb_mark_session_in_play(pxp); + if (ret) { + drm_err(>->i915->drm, "Failed to mark arb session status in play\n"); + return ret; + } + + pxp->ctx.flag_display_hm_surface_keys = true; + + return ret; +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_arb.h b/drivers/gpu/drm/i915/pxp/intel_pxp_arb.h new file mode 100644 index 000000000000..2196153dd879 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_arb.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_ARB_H__ +#define __INTEL_PXP_ARB_H__ + +#include + +struct intel_pxp; + +int intel_pxp_arb_create_session(struct intel_pxp *pxp); +bool intel_pxp_arb_session_is_in_play(struct intel_pxp *pxp); + +#endif /* __INTEL_PXP_ARB_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_context.h b/drivers/gpu/drm/i915/pxp/intel_pxp_context.h index f51021c33d45..bf2feb4aaf6d 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_context.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_context.h @@ -8,6 +8,7 @@ #include #include "intel_pxp_types.h" +#include "intel_pxp_arb.h" void intel_pxp_ctx_init(struct pxp_context *ctx); void intel_pxp_ctx_fini(struct pxp_context *ctx); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c index 5a1ffcc703e2..41d8a31bbb75 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c @@ -10,6 +10,32 @@ #include "intel_pxp.h" #include "intel_pxp_context.h" #include "intel_pxp_tee.h" +#include "intel_pxp_arb.h" + +#define PXP_TEE_APIVER 0x40002 +#define PXP_TEE_ARB_CMDID 0x1e +#define PXP_TEE_ARB_PROTECTION_MODE 0x2 + +/* PXP TEE message header */ +struct pxp_tee_cmd_header { + u32 api_version; + u32 command_id; + u32 status; + /* Length of the message (excluding the header) */ + u32 buffer_len; +} __packed; + +/* PXP TEE message input to create a arbitrary session */ +struct pxp_tee_create_arb_in { + struct pxp_tee_cmd_header header; + u32 protection_mode; + u32 session_id; +} __packed; + +/* PXP TEE message output to create a arbitrary session */ +struct pxp_tee_create_arb_out { + struct pxp_tee_cmd_header header; +} __packed; static int intel_pxp_tee_io_message(struct intel_pxp *pxp, void *msg_in, u32 msg_in_size, @@ -70,7 +96,9 @@ static int intel_pxp_tee_io_message(struct intel_pxp *pxp, static int i915_pxp_tee_component_bind(struct device *i915_kdev, struct device *tee_kdev, void *data) { + int ret = 0; struct drm_i915_private *i915 = kdev_to_i915(i915_kdev); + struct intel_pxp *pxp = &i915->gt.pxp; if (!i915 || !tee_kdev || !data) return -EPERM; @@ -80,6 +108,19 @@ static int i915_pxp_tee_component_bind(struct device *i915_kdev, i915->pxp_tee_master->tee_dev = tee_kdev; mutex_unlock(&i915->pxp_tee_comp_mutex); + mutex_lock(&pxp->ctx.mutex); + + /* Create arb session only if tee is ready, during system boot or sleep/resume */ + if (!intel_pxp_arb_session_is_in_play(pxp)) + ret = intel_pxp_arb_create_session(pxp); + + mutex_unlock(&pxp->ctx.mutex); + + if (ret) { + drm_err(&i915->drm, "Failed to create arb session ret=[%d]\n", ret); + return ret; + } + return 0; } @@ -135,3 +176,35 @@ void intel_pxp_tee_component_fini(struct intel_pxp *pxp) component_del(i915->drm.dev, &i915_pxp_tee_component_ops); } + +int intel_pxp_tee_cmd_create_arb_session(struct intel_pxp *pxp, + int arb_session_id) +{ + int ret; + u32 msg_out_size_received = 0; + struct pxp_tee_create_arb_in msg_in = {0}; + struct pxp_tee_create_arb_out msg_out = {0}; + struct intel_gt *gt = container_of(pxp, typeof(*gt), pxp); + struct drm_i915_private *i915 = gt->i915; + + msg_in.header.api_version = PXP_TEE_APIVER; + msg_in.header.command_id = PXP_TEE_ARB_CMDID; + msg_in.header.buffer_len = sizeof(msg_in) - sizeof(msg_in.header); + msg_in.protection_mode = PXP_TEE_ARB_PROTECTION_MODE; + msg_in.session_id = arb_session_id; + + mutex_lock(&i915->pxp_tee_comp_mutex); + + ret = intel_pxp_tee_io_message(pxp, + &msg_in, + sizeof(msg_in), + &msg_out, &msg_out_size_received, + sizeof(msg_out)); + + mutex_unlock(&i915->pxp_tee_comp_mutex); + + if (ret) + drm_err(&i915->drm, "Failed to send tee msg ret=[%d]\n", ret); + + return ret; +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.h b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.h index 4b5e3edb1d9b..c46f9033f709 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.h @@ -11,4 +11,7 @@ void intel_pxp_tee_component_init(struct intel_pxp *pxp); void intel_pxp_tee_component_fini(struct intel_pxp *pxp); +int intel_pxp_tee_cmd_create_arb_session(struct intel_pxp *pxp, + int arb_session_id); + #endif /* __INTEL_PXP_TEE_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_types.h b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h index f9b40ea98b1b..287ba1e0ed9d 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_types.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h @@ -8,12 +8,38 @@ #include +/** + * struct pxp_protected_session - structure to track all active sessions. + */ +struct pxp_protected_session { + /** @index: Numeric identifier for this protected session */ + int index; + /** @type: Type of session */ + int type; + /** @protection_mode: mode of protection requested */ + int protection_mode; + + /** + * @is_in_play: indicates whether the session has been established + * in the HW root of trust if this flag is false, it + * indicates an application has reserved this session, + * but has not * established the session in the + * hardware yet. + */ + bool is_in_play; +}; + /* struct pxp_context - Represents combined view of driver and logical HW states. */ struct pxp_context { /** @mutex: mutex to protect the pxp context */ struct mutex mutex; bool inited; + + struct pxp_protected_session arb_session; + u32 arb_session_pxp_tag; + + bool flag_display_hm_surface_keys; }; struct intel_pxp { From patchwork Wed Jan 6 23:12:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 12002413 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 727DFC433DB for ; Wed, 6 Jan 2021 23:12:30 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 187FD225AC for ; Wed, 6 Jan 2021 23:12:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 187FD225AC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E513D6E323; Wed, 6 Jan 2021 23:12:25 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4BA756E30D for ; Wed, 6 Jan 2021 23:12:24 +0000 (UTC) IronPort-SDR: jxETf6hcunXzxdZO7jdGY6pOzZzb/hmBeksTklo3Te+fAr4sW8HVF3foxho1tjBkcnXn58hDkw x3MSVju2JJdA== X-IronPort-AV: E=McAfee;i="6000,8403,9856"; a="195900070" X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="195900070" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jan 2021 15:12:23 -0800 IronPort-SDR: R6IiyoWU3UByNum+7W2PbWhnl1zhWs2DxmIsBgzovZZNgqqlXpWaic6xLAB1IhYh8x1I/MlXkS ZNdpo3EwMYGg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="567566123" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga006.fm.intel.com with ESMTP; 06 Jan 2021 15:12:23 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Wed, 6 Jan 2021 15:12:15 -0800 Message-Id: <20210106231223.8323-6-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210106231223.8323-1-sean.z.huang@intel.com> References: <20210106231223.8323-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [RFC-v19 05/13] drm/i915/pxp: Func to send hardware session termination 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: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Implement the functions to allow PXP to send a GPU command, in order to terminate the hardware session, so hardware can recycle this session slot for the next usage. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/Makefile | 1 + drivers/gpu/drm/i915/pxp/intel_pxp.c | 13 ++ drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c | 158 +++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_cmd.h | 18 +++ drivers/gpu/drm/i915/pxp/intel_pxp_types.h | 4 + 5 files changed, 194 insertions(+) create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_cmd.h diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index af9e87e4c63a..5599b92bea9b 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -263,6 +263,7 @@ i915-y += i915_perf.o i915-$(CONFIG_DRM_I915_PXP) += \ pxp/intel_pxp.o \ pxp/intel_pxp_arb.o \ + pxp/intel_pxp_cmd.o \ pxp/intel_pxp_context.o \ pxp/intel_pxp_tee.o diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index 3868e8c697f9..2f63801748f8 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -17,10 +17,23 @@ void intel_pxp_init(struct intel_pxp *pxp) { struct intel_gt *gt = container_of(pxp, struct intel_gt, pxp); + int i; if (INTEL_GEN(gt->i915) < 12) return; + /* Find the first VCS engine present */ + for (i = 0; i < I915_MAX_VCS; i++) { + if (HAS_ENGINE(gt, _VCS(i))) { + pxp->vcs_engine = gt->engine[_VCS(i)]; + break; + } + } + if (!pxp->vcs_engine) { + drm_err(>->i915->drm, "Could not find a VCS engine\n"); + return; + } + intel_pxp_ctx_init(&pxp->ctx); intel_uncore_write(gt->uncore, KCR_INIT, KCR_INIT_ALLOW_DISPLAY_ME_WRITES); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c new file mode 100644 index 000000000000..d9298cf5e1a7 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c @@ -0,0 +1,158 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#include "intel_pxp_cmd.h" +#include "i915_drv.h" +#include "gt/intel_context.h" +#include "gt/intel_engine_pm.h" + +struct i915_vma *intel_pxp_cmd_get_batch(struct intel_pxp *pxp, + struct intel_context *ce, + struct intel_gt_buffer_pool_node *pool, + u32 *cmd_buf, int cmd_size_in_dw) +{ + struct i915_vma *batch = ERR_PTR(-EINVAL); + struct intel_gt *gt = container_of(pxp, struct intel_gt, pxp); + u32 *cmd; + + if (!ce || !ce->engine || !cmd_buf) + return ERR_PTR(-EINVAL); + + if (cmd_size_in_dw * 4 > PAGE_SIZE) { + drm_err(>->i915->drm, "Failed to %s, invalid cmd_size_id_dw=[%d]\n", + __func__, cmd_size_in_dw); + return ERR_PTR(-EINVAL); + } + + cmd = i915_gem_object_pin_map(pool->obj, I915_MAP_FORCE_WC); + if (IS_ERR(cmd)) { + drm_err(>->i915->drm, "Failed to i915_gem_object_pin_map()\n"); + return ERR_PTR(-EINVAL); + } + + memcpy(cmd, cmd_buf, cmd_size_in_dw * 4); + + if (drm_debug_enabled(DRM_UT_DRIVER)) { + print_hex_dump(KERN_DEBUG, "cmd binaries:", + DUMP_PREFIX_OFFSET, 4, 4, cmd, cmd_size_in_dw * 4, true); + } + + i915_gem_object_unpin_map(pool->obj); + + batch = i915_vma_instance(pool->obj, ce->vm, NULL); + if (IS_ERR(batch)) { + drm_err(>->i915->drm, "Failed to i915_vma_instance()\n"); + return batch; + } + + return batch; +} + +int intel_pxp_cmd_submit(struct intel_pxp *pxp, u32 *cmd, int cmd_size_in_dw) +{ + int err = -EINVAL; + struct i915_vma *batch; + struct i915_request *rq; + struct intel_context *ce = NULL; + bool is_engine_pm_get = false; + bool is_batch_vma_pin = false; + bool is_skip_req_on_err = false; + bool is_engine_get_pool = false; + struct intel_gt_buffer_pool_node *pool = NULL; + struct intel_gt *gt = container_of(pxp, struct intel_gt, pxp); + + ce = pxp->vcs_engine->kernel_context; + if (!ce) { + drm_err(>->i915->drm, "VCS engine does not have context\n"); + err = -EINVAL; + goto end; + } + + if (!cmd || (cmd_size_in_dw * 4) > PAGE_SIZE) { + drm_err(>->i915->drm, "Failed to %s bad params\n", __func__); + return -EINVAL; + } + + intel_engine_pm_get(ce->engine); + is_engine_pm_get = true; + + pool = intel_gt_get_buffer_pool(gt, PAGE_SIZE); + if (IS_ERR(pool)) { + drm_err(>->i915->drm, "Failed to intel_engine_get_pool()\n"); + err = PTR_ERR(pool); + goto end; + } + is_engine_get_pool = true; + + batch = intel_pxp_cmd_get_batch(pxp, ce, pool, cmd, cmd_size_in_dw); + if (IS_ERR(batch)) { + drm_err(>->i915->drm, "Failed to intel_pxp_cmd_get_batch()\n"); + err = PTR_ERR(batch); + goto end; + } + + err = i915_vma_pin(batch, 0, 0, PIN_USER); + if (err) { + drm_err(>->i915->drm, "Failed to i915_vma_pin()\n"); + goto end; + } + is_batch_vma_pin = true; + + rq = intel_context_create_request(ce); + if (IS_ERR(rq)) { + drm_err(>->i915->drm, "Failed to intel_context_create_request()\n"); + err = PTR_ERR(rq); + goto end; + } + is_skip_req_on_err = true; + + err = intel_gt_buffer_pool_mark_active(pool, rq); + if (err) { + drm_err(>->i915->drm, "Failed to intel_engine_pool_mark_active()\n"); + goto end; + } + + i915_vma_lock(batch); + err = i915_request_await_object(rq, batch->obj, false); + if (!err) + err = i915_vma_move_to_active(batch, rq, 0); + i915_vma_unlock(batch); + if (err) { + drm_err(>->i915->drm, "Failed to i915_request_await_object()\n"); + goto end; + } + + if (ce->engine->emit_init_breadcrumb) { + err = ce->engine->emit_init_breadcrumb(rq); + if (err) { + drm_err(>->i915->drm, "Failed to emit_init_breadcrumb()\n"); + goto end; + } + } + + err = ce->engine->emit_bb_start(rq, batch->node.start, + batch->node.size, 0); + if (err) { + drm_err(>->i915->drm, "Failed to emit_bb_start()\n"); + goto end; + } + + i915_request_add(rq); + +end: + if (unlikely(err) && is_skip_req_on_err) + i915_request_set_error_once(rq, err); + + if (is_batch_vma_pin) + i915_vma_unpin(batch); + + if (is_engine_get_pool) + intel_gt_buffer_pool_put(pool); + + if (is_engine_pm_get) + intel_engine_pm_put(ce->engine); + + return err; +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.h b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.h new file mode 100644 index 000000000000..d04463962421 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_CMD_H__ +#define __INTEL_PXP_CMD_H__ + +#include "gt/intel_gt_buffer_pool.h" +#include "intel_pxp.h" + +struct i915_vma *intel_pxp_cmd_get_batch(struct intel_pxp *pxp, + struct intel_context *ce, + struct intel_gt_buffer_pool_node *pool, + u32 *cmd_buf, int cmd_size_in_dw); + +int intel_pxp_cmd_submit(struct intel_pxp *pxp, u32 *cmd, int cmd_size_in_dw); +#endif /* __INTEL_PXP_SM_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_types.h b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h index 287ba1e0ed9d..f3d9335aee5f 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_types.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h @@ -8,6 +8,8 @@ #include +struct intel_engine_cs; + /** * struct pxp_protected_session - structure to track all active sessions. */ @@ -44,6 +46,8 @@ struct pxp_context { struct intel_pxp { struct pxp_context ctx; + + struct intel_engine_cs *vcs_engine; }; #endif /* __INTEL_PXP_TYPES_H__ */ From patchwork Wed Jan 6 23:12:16 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 12002411 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 93786C433E6 for ; Wed, 6 Jan 2021 23:12:28 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 5C95A225AC for ; Wed, 6 Jan 2021 23:12:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5C95A225AC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8A34D6E30F; Wed, 6 Jan 2021 23:12:25 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6658E6E30F for ; Wed, 6 Jan 2021 23:12:24 +0000 (UTC) IronPort-SDR: LAy1oCtQWDS4eZdi34zSwsrDOV62FA80bXxBzCZb1xsCKGBDbHWCArtKCAioeqbOl7REyCoUrB d0bmxi4PlzoQ== X-IronPort-AV: E=McAfee;i="6000,8403,9856"; a="195900071" X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="195900071" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jan 2021 15:12:23 -0800 IronPort-SDR: FOmcZh6zo9maqsJcLhRviUqJ5IHkmSabXwHkIR3Vca94o3sCC+c2GS42RBHKQduNA9EYc954hh zgEwSsrTpg5A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="567566124" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga006.fm.intel.com with ESMTP; 06 Jan 2021 15:12:23 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Wed, 6 Jan 2021 15:12:16 -0800 Message-Id: <20210106231223.8323-7-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210106231223.8323-1-sean.z.huang@intel.com> References: <20210106231223.8323-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [RFC-v19 06/13] drm/i915/pxp: Enable PXP irq worker and callback stub 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: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Create the irq worker that serves as callback handler, those callback stubs should be called while the hardware key teardown occurs. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/gt/intel_gt_irq.c | 4 + drivers/gpu/drm/i915/i915_reg.h | 3 +- drivers/gpu/drm/i915/pxp/intel_pxp.c | 101 +++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp.h | 24 ++++- drivers/gpu/drm/i915/pxp/intel_pxp_context.c | 3 + drivers/gpu/drm/i915/pxp/intel_pxp_context.h | 1 - drivers/gpu/drm/i915/pxp/intel_pxp_types.h | 6 ++ 7 files changed, 139 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/intel_gt_irq.c b/drivers/gpu/drm/i915/gt/intel_gt_irq.c index 9830342aa6f4..b92072554ab3 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_irq.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_irq.c @@ -14,6 +14,7 @@ #include "intel_lrc_reg.h" #include "intel_uncore.h" #include "intel_rps.h" +#include "pxp/intel_pxp.h" static void guc_irq_handler(struct intel_guc *guc, u16 iir) { @@ -107,6 +108,9 @@ gen11_other_irq_handler(struct intel_gt *gt, const u8 instance, if (instance == OTHER_GTPM_INSTANCE) return gen11_rps_irq_handler(>->rps, iir); + if (instance == OTHER_KCR_INSTANCE) + return intel_pxp_irq_handler(>->pxp, iir); + WARN_ONCE(1, "unhandled other interrupt instance=0x%x, iir=0x%x\n", instance, iir); } diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 0023c023f472..1e8dfe435ca8 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -7944,6 +7944,7 @@ enum { /* irq instances for OTHER_CLASS */ #define OTHER_GUC_INSTANCE 0 #define OTHER_GTPM_INSTANCE 1 +#define OTHER_KCR_INSTANCE 4 #define GEN11_INTR_IDENTITY_REG(x) _MMIO(0x190060 + ((x) * 4)) @@ -7966,7 +7967,7 @@ enum { #define GEN11_VECS0_VECS1_INTR_MASK _MMIO(0x1900d0) #define GEN11_GUC_SG_INTR_MASK _MMIO(0x1900e8) #define GEN11_GPM_WGBOXPERF_INTR_MASK _MMIO(0x1900ec) -#define GEN11_CRYPTO_RSVD_INTR_MASK _MMIO(0x1900f0) +#define GEN11_CRYPTO_INTR_MASK _MMIO(0x1900f0) /* crypto mask is in bit31-16 (Engine1 Interrupt Mask) */ #define GEN11_GUNIT_CSME_INTR_MASK _MMIO(0x1900f4) #define ENGINE1_MASK REG_GENMASK(31, 16) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index 2f63801748f8..fa15e3ad2f92 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -14,6 +14,70 @@ /* Setting KCR Init bit is required after system boot */ #define KCR_INIT_ALLOW_DISPLAY_ME_WRITES (BIT(14) | (BIT(14) << KCR_INIT_MASK_SHIFT)) +static void intel_pxp_write_irq_mask_reg(struct intel_gt *gt, u32 mask) +{ + lockdep_assert_held(>->irq_lock); + + intel_uncore_write(gt->uncore, GEN11_CRYPTO_INTR_MASK, mask << 16); +} + +static int intel_pxp_teardown_required_callback(struct intel_pxp *pxp) +{ + int ret; + + mutex_lock(&pxp->ctx.mutex); + + pxp->ctx.global_state_attacked = true; + + mutex_unlock(&pxp->ctx.mutex); + + return ret; +} + +static int intel_pxp_global_terminate_complete_callback(struct intel_pxp *pxp) +{ + int ret = 0; + struct intel_gt *gt = container_of(pxp, typeof(*gt), pxp); + + mutex_lock(&pxp->ctx.mutex); + + if (pxp->ctx.global_state_attacked) { + pxp->ctx.global_state_attacked = false; + + /* Re-create the arb session after teardown handle complete */ + ret = intel_pxp_arb_create_session(pxp); + if (ret) { + drm_err(>->i915->drm, "Failed to create arb session\n"); + goto end; + } + } +end: + mutex_unlock(&pxp->ctx.mutex); + return ret; +} + +static void intel_pxp_irq_work(struct work_struct *work) +{ + struct intel_pxp *pxp = container_of(work, typeof(*pxp), irq_work); + struct intel_gt *gt = container_of(pxp, typeof(*gt), pxp); + u32 events = 0; + + spin_lock_irq(>->irq_lock); + events = fetch_and_zero(&pxp->current_events); + spin_unlock_irq(>->irq_lock); + + if (events & PXP_IRQ_VECTOR_DISPLAY_PXP_STATE_TERMINATED || + events & PXP_IRQ_VECTOR_DISPLAY_APP_TERM_PER_FW_REQ) + intel_pxp_teardown_required_callback(pxp); + + if (events & PXP_IRQ_VECTOR_PXP_DISP_STATE_RESET_COMPLETE) + intel_pxp_global_terminate_complete_callback(pxp); + + spin_lock_irq(>->irq_lock); + intel_pxp_write_irq_mask_reg(gt, 0); + spin_unlock_irq(>->irq_lock); +} + void intel_pxp_init(struct intel_pxp *pxp) { struct intel_gt *gt = container_of(pxp, struct intel_gt, pxp); @@ -40,6 +104,12 @@ void intel_pxp_init(struct intel_pxp *pxp) intel_pxp_tee_component_init(pxp); + INIT_WORK(&pxp->irq_work, intel_pxp_irq_work); + + pxp->handled_irr = (PXP_IRQ_VECTOR_DISPLAY_PXP_STATE_TERMINATED | + PXP_IRQ_VECTOR_DISPLAY_APP_TERM_PER_FW_REQ | + PXP_IRQ_VECTOR_PXP_DISP_STATE_RESET_COMPLETE); + drm_info(>->i915->drm, "Protected Xe Path (PXP) protected content support initialized\n"); } @@ -54,3 +124,34 @@ void intel_pxp_fini(struct intel_pxp *pxp) intel_pxp_ctx_fini(&pxp->ctx); } + +/** + * intel_pxp_irq_handler - Proxies KCR interrupts to PXP. + * @pxp: pointer to pxp struct + * @iir: GT interrupt vector associated with the interrupt + * + * Dispatches each vector element into an IRQ to PXP. + */ +void intel_pxp_irq_handler(struct intel_pxp *pxp, u16 iir) +{ + struct drm_i915_private *i915; + const u32 events = iir & pxp->handled_irr; + struct intel_gt *gt = container_of(pxp, typeof(*gt), pxp); + + if (!gt || !gt->i915 || INTEL_GEN(i915) < 12) + return; + + i915 = gt->i915; + + lockdep_assert_held(>->irq_lock); + + if (unlikely(!events)) { + drm_err(&i915->drm, "%s returned due to iir=[0x%04x]\n", __func__, iir); + return; + } + + intel_pxp_write_irq_mask_reg(gt, pxp->handled_irr); + + pxp->current_events |= events; + schedule_work(&pxp->irq_work); +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h index 8fc91e900b16..cdaa6ce6fdca 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -6,8 +6,13 @@ #ifndef __INTEL_PXP_H__ #define __INTEL_PXP_H__ +#include #include "intel_pxp_types.h" +#define PXP_IRQ_VECTOR_DISPLAY_PXP_STATE_TERMINATED BIT(1) +#define PXP_IRQ_VECTOR_DISPLAY_APP_TERM_PER_FW_REQ BIT(2) +#define PXP_IRQ_VECTOR_PXP_DISP_STATE_RESET_COMPLETE BIT(3) + enum pxp_session_types { SESSION_TYPE_TYPE0 = 0, SESSION_TYPE_TYPE1 = 1, @@ -25,14 +30,31 @@ enum pxp_protection_modes { }; #ifdef CONFIG_DRM_I915_PXP +void intel_pxp_irq_handler(struct intel_pxp *pxp, u16 iir); +int i915_pxp_teardown_required_callback(struct intel_pxp *pxp); +int i915_pxp_global_terminate_complete_callback(struct intel_pxp *pxp); + void intel_pxp_init(struct intel_pxp *pxp); void intel_pxp_fini(struct intel_pxp *pxp); #else -static inline void intel_pxp_init(struct intel_pxp *pxp) +static inline void intel_pxp_irq_handler(struct intel_pxp *pxp, u16 iir) +{ +} + +static inline int i915_pxp_teardown_required_callback(struct intel_pxp *pxp) +{ + return 0; +} + +static inline int i915_pxp_global_terminate_complete_callback(struct intel_pxp *pxp) { return 0; } +static inline void intel_pxp_init(struct intel_pxp *pxp) +{ +} + static inline void intel_pxp_fini(struct intel_pxp *pxp) { } diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_context.c b/drivers/gpu/drm/i915/pxp/intel_pxp_context.c index 2be6bf2f0d0f..4e820258b7ae 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_context.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_context.c @@ -11,7 +11,10 @@ */ void intel_pxp_ctx_init(struct pxp_context *ctx) { + ctx->global_state_attacked = false; + mutex_init(&ctx->mutex); + ctx->inited = true; } diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_context.h b/drivers/gpu/drm/i915/pxp/intel_pxp_context.h index bf2feb4aaf6d..f51021c33d45 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_context.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_context.h @@ -8,7 +8,6 @@ #include #include "intel_pxp_types.h" -#include "intel_pxp_arb.h" void intel_pxp_ctx_init(struct pxp_context *ctx); void intel_pxp_ctx_fini(struct pxp_context *ctx); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_types.h b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h index f3d9335aee5f..0b140aaeb6ed 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_types.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h @@ -7,6 +7,7 @@ #define __INTEL_PXP_TYPES_H__ #include +#include struct intel_engine_cs; @@ -42,9 +43,14 @@ struct pxp_context { u32 arb_session_pxp_tag; bool flag_display_hm_surface_keys; + bool global_state_attacked; }; struct intel_pxp { + struct work_struct irq_work; + u32 handled_irr; + u32 current_events; + struct pxp_context ctx; struct intel_engine_cs *vcs_engine; From patchwork Wed Jan 6 23:12:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 12002415 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 79C1FC433E6 for ; Wed, 6 Jan 2021 23:12:31 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 3D637225AC for ; Wed, 6 Jan 2021 23:12:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3D637225AC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D54056E314; Wed, 6 Jan 2021 23:12:25 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 80CCB6E30D for ; Wed, 6 Jan 2021 23:12:24 +0000 (UTC) IronPort-SDR: 8JI79S67D18AzzlBZudkaM/Kb8mmdgC+jmnskqZSKTwbpdICLSZPx8W8K8mCsq9Lz2JWg89hyt SivWu9KE2p7A== X-IronPort-AV: E=McAfee;i="6000,8403,9856"; a="195900072" X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="195900072" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jan 2021 15:12:23 -0800 IronPort-SDR: 08V4P/Rb4+ATvxylcFBbEN/9RQe8Dle2SRfALm6hFxvBbG00FSOfpLpWpY7lhGeV0sO1hsoGXI SkPE/SJ+wSRg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="567566125" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga006.fm.intel.com with ESMTP; 06 Jan 2021 15:12:23 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Wed, 6 Jan 2021 15:12:17 -0800 Message-Id: <20210106231223.8323-8-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210106231223.8323-1-sean.z.huang@intel.com> References: <20210106231223.8323-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [RFC-v19 07/13] drm/i915/pxp: Destroy arb session upon teardown 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: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Teardown is triggered when the display topology changes and no long meets the secure playback requirement, and hardware trashes all the encryption keys for display. So as a result, PXP should handle such case and terminate the type0 sessions, which including arb session Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/pxp/intel_pxp.c | 3 + drivers/gpu/drm/i915/pxp/intel_pxp_arb.c | 76 +++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_arb.h | 1 + drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c | 130 ++++++++++++++++++++++- drivers/gpu/drm/i915/pxp/intel_pxp_cmd.h | 12 ++- 5 files changed, 212 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index fa15e3ad2f92..23d4cfc1fb1f 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -28,6 +28,9 @@ static int intel_pxp_teardown_required_callback(struct intel_pxp *pxp) mutex_lock(&pxp->ctx.mutex); pxp->ctx.global_state_attacked = true; + pxp->ctx.flag_display_hm_surface_keys = false; + + ret = intel_pxp_arb_terminate_session(pxp); mutex_unlock(&pxp->ctx.mutex); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_arb.c b/drivers/gpu/drm/i915/pxp/intel_pxp_arb.c index 640d7103c04d..1d2ec8ffd7ad 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_arb.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_arb.c @@ -10,6 +10,7 @@ #include "intel_pxp_arb.h" #include "intel_pxp.h" #include "intel_pxp_tee.h" +#include "intel_pxp_cmd.h" #define GEN12_KCR_SIP _MMIO(0x32260) /* KCR type0 session in play 0-31 */ @@ -129,3 +130,78 @@ int intel_pxp_arb_create_session(struct intel_pxp *pxp) return ret; } + +static int intel_pxp_arb_session_with_global_termination(struct intel_pxp *pxp) +{ + u32 *cmd = NULL; + u32 *cmd_ptr = NULL; + int cmd_size_in_dw = 0; + int ret; + struct intel_gt *gt = container_of(pxp, typeof(*gt), pxp); + + /* Calculate how many bytes need to be alloc */ + cmd_size_in_dw += intel_pxp_cmd_add_prolog(pxp, NULL, ARB_SESSION_TYPE, ARB_SESSION_INDEX); + cmd_size_in_dw += intel_pxp_cmd_add_inline_termination(NULL); + cmd_size_in_dw += intel_pxp_cmd_add_epilog(NULL); + + cmd = kzalloc(cmd_size_in_dw * 4, GFP_KERNEL); + if (!cmd) + return -ENOMEM; + + /* Program the command */ + cmd_ptr = cmd; + cmd_ptr += intel_pxp_cmd_add_prolog(pxp, cmd_ptr, ARB_SESSION_TYPE, ARB_SESSION_INDEX); + cmd_ptr += intel_pxp_cmd_add_inline_termination(cmd_ptr); + cmd_ptr += intel_pxp_cmd_add_epilog(cmd_ptr); + + if (cmd_size_in_dw != (cmd_ptr - cmd)) { + ret = -EINVAL; + drm_err(>->i915->drm, "Failed to %s\n", __func__); + goto end; + } + + if (drm_debug_enabled(DRM_UT_DRIVER)) { + print_hex_dump(KERN_DEBUG, "global termination cmd binaries:", + DUMP_PREFIX_OFFSET, 4, 4, cmd, cmd_size_in_dw * 4, true); + } + + ret = intel_pxp_cmd_submit(pxp, cmd, cmd_size_in_dw); + if (ret) { + drm_err(>->i915->drm, "Failed to intel_pxp_cmd_submit()\n"); + goto end; + } + +end: + kfree(cmd); + return ret; +} + +/** + * intel_pxp_arb_terminate_session - Terminate the arb hw session and its entries. + * @pxp: pointer to pxp struct. + * + * This function is NOT intended to be called from the ioctl, and need to be protected by + * ctx.mutex to ensure no SIP change during the call. + * + * Return: status. 0 means terminate is successful. + */ +int intel_pxp_arb_terminate_session(struct intel_pxp *pxp) +{ + int ret; + struct intel_gt *gt = container_of(pxp, struct intel_gt, pxp); + struct pxp_protected_session *arb = &pxp->ctx.arb_session; + + lockdep_assert_held(&pxp->ctx.mutex); + + /* terminate the hw sessions */ + ret = intel_pxp_arb_session_with_global_termination(pxp); + if (ret) { + drm_err(>->i915->drm, "Failed to intel_pxp_arb_session_with_global_termination\n"); + return ret; + } + + arb->is_in_play = false; + + return ret; +} + diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_arb.h b/drivers/gpu/drm/i915/pxp/intel_pxp_arb.h index 2196153dd879..42261ef33a03 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_arb.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_arb.h @@ -11,6 +11,7 @@ struct intel_pxp; int intel_pxp_arb_create_session(struct intel_pxp *pxp); +int intel_pxp_arb_terminate_session(struct intel_pxp *pxp); bool intel_pxp_arb_session_is_in_play(struct intel_pxp *pxp); #endif /* __INTEL_PXP_ARB_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c index d9298cf5e1a7..ae338ab2e629 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c @@ -5,13 +5,33 @@ #include "intel_pxp_cmd.h" #include "i915_drv.h" +#include "gt/intel_gpu_commands.h" #include "gt/intel_context.h" #include "gt/intel_engine_pm.h" -struct i915_vma *intel_pxp_cmd_get_batch(struct intel_pxp *pxp, - struct intel_context *ce, - struct intel_gt_buffer_pool_node *pool, - u32 *cmd_buf, int cmd_size_in_dw) +/* PXP GPU command definitions */ + +/* MI_SET_APPID */ +#define MI_SET_APPID_TYPE1_APP BIT(7) +#define MI_SET_APPID_SESSION_ID(x) ((x) << 0) + +/* MI_FLUSH_DW */ +#define MI_FLUSH_DW_DW0_PROTECTED_MEMORY_ENABLE BIT(22) + +/* MI_WAIT */ +#define MFX_WAIT_DW0_PXP_SYNC_CONTROL_FLAG BIT(9) +#define MFX_WAIT_DW0_MFX_SYNC_CONTROL_FLAG BIT(8) + +/* CRYPTO_KEY_EXCHANGE */ +#define CRYPTO_KEY_EXCHANGE ((0x3 << 29) | (0x01609 << 16)) + +#define PXP_MAX_TYPE0_SESSIONS 16 +#define PXP_MAX_TYPE1_SESSIONS 6 + +static struct i915_vma *intel_pxp_cmd_get_batch(struct intel_pxp *pxp, + struct intel_context *ce, + struct intel_gt_buffer_pool_node *pool, + u32 *cmd_buf, int cmd_size_in_dw) { struct i915_vma *batch = ERR_PTR(-EINVAL); struct intel_gt *gt = container_of(pxp, struct intel_gt, pxp); @@ -50,7 +70,8 @@ struct i915_vma *intel_pxp_cmd_get_batch(struct intel_pxp *pxp, return batch; } -int intel_pxp_cmd_submit(struct intel_pxp *pxp, u32 *cmd, int cmd_size_in_dw) +int intel_pxp_cmd_submit(struct intel_pxp *pxp, u32 *cmd, + int cmd_size_in_dw) { int err = -EINVAL; struct i915_vma *batch; @@ -156,3 +177,102 @@ int intel_pxp_cmd_submit(struct intel_pxp *pxp, u32 *cmd, int cmd_size_in_dw) return err; } + +int intel_pxp_cmd_add_prolog(struct intel_pxp *pxp, u32 *cmd, + int session_type, + int session_index) +{ + u32 increased_size_in_dw = 0; + u32 *cmd_prolog = cmd; + const int cmd_prolog_size_in_dw = 10; + struct intel_gt *gt = container_of(pxp, typeof(*gt), pxp); + + if (!cmd) + return cmd_prolog_size_in_dw; + + /* MFX_WAIT - stall until prior PXP and MFX/HCP/HUC objects are cmopleted */ + *cmd_prolog++ = (MFX_WAIT | MFX_WAIT_DW0_PXP_SYNC_CONTROL_FLAG | + MFX_WAIT_DW0_MFX_SYNC_CONTROL_FLAG); + + /* MI_FLUSH_DW - pxp off */ + *cmd_prolog++ = MI_FLUSH_DW; /* DW0 */ + *cmd_prolog++ = 0; /* DW1 */ + *cmd_prolog++ = 0; /* DW2 */ + + /* MI_SET_APPID */ + if (session_type == SESSION_TYPE_TYPE1) { + if (session_index >= PXP_MAX_TYPE1_SESSIONS) { + drm_err(>->i915->drm, "Failed to %s invalid session_index\n", __func__); + goto end; + } + + *cmd_prolog++ = (MI_SET_APPID | MI_SET_APPID_TYPE1_APP | + MI_SET_APPID_SESSION_ID(session_index)); + } else { + if (session_index >= PXP_MAX_TYPE0_SESSIONS) { + drm_err(>->i915->drm, "Failed to %s invalid session_index\n", __func__); + goto end; + } + + *cmd_prolog++ = (MI_SET_APPID | MI_SET_APPID_SESSION_ID(session_index)); + } + + /* MFX_WAIT */ + *cmd_prolog++ = (MFX_WAIT | MFX_WAIT_DW0_PXP_SYNC_CONTROL_FLAG | + MFX_WAIT_DW0_MFX_SYNC_CONTROL_FLAG); + + /* MI_FLUSH_DW - pxp on */ + *cmd_prolog++ = (MI_FLUSH_DW | MI_FLUSH_DW_DW0_PROTECTED_MEMORY_ENABLE); /* DW0 */ + *cmd_prolog++ = 0; /* DW1 */ + *cmd_prolog++ = 0; /* DW2 */ + + /* MFX_WAIT */ + *cmd_prolog++ = (MFX_WAIT | MFX_WAIT_DW0_PXP_SYNC_CONTROL_FLAG | + MFX_WAIT_DW0_MFX_SYNC_CONTROL_FLAG); + + increased_size_in_dw = (cmd_prolog - cmd); +end: + return increased_size_in_dw; +} + +int intel_pxp_cmd_add_epilog(u32 *cmd) +{ + u32 increased_size_in_dw = 0; + u32 *cmd_epilog = cmd; + const int cmd_epilog_size_in_dw = 5; + + if (!cmd) + return cmd_epilog_size_in_dw; + + /* MI_FLUSH_DW - pxp off */ + *cmd_epilog++ = MI_FLUSH_DW; /* DW0 */ + *cmd_epilog++ = 0; /* DW1 */ + *cmd_epilog++ = 0; /* DW2 */ + + /* MFX_WAIT - stall until prior PXP and MFX/HCP/HUC objects are cmopleted */ + *cmd_epilog++ = (MFX_WAIT | MFX_WAIT_DW0_PXP_SYNC_CONTROL_FLAG | + MFX_WAIT_DW0_MFX_SYNC_CONTROL_FLAG); + + /* MI_BATCH_BUFFER_END */ + *cmd_epilog++ = MI_BATCH_BUFFER_END; + + increased_size_in_dw = (cmd_epilog - cmd); + return increased_size_in_dw; +} + +int intel_pxp_cmd_add_inline_termination(u32 *cmd) +{ + u32 increased_size_in_dw = 0; + u32 *cmd_termin = cmd; + const int cmd_termin_size_in_dw = 2; + + if (!cmd) + return cmd_termin_size_in_dw; + + /* CRYPTO_KEY_EXCHANGE - session inline termination */ + *cmd_termin++ = CRYPTO_KEY_EXCHANGE; /* DW0 */ + *cmd_termin++ = 0; /* DW1 */ + + increased_size_in_dw = (cmd_termin - cmd); + return increased_size_in_dw; +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.h b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.h index d04463962421..087f260034c4 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.h @@ -9,10 +9,12 @@ #include "gt/intel_gt_buffer_pool.h" #include "intel_pxp.h" -struct i915_vma *intel_pxp_cmd_get_batch(struct intel_pxp *pxp, - struct intel_context *ce, - struct intel_gt_buffer_pool_node *pool, - u32 *cmd_buf, int cmd_size_in_dw); +int intel_pxp_cmd_submit(struct intel_pxp *pxp, u32 *cmd, + int cmd_size_in_dw); +int intel_pxp_cmd_add_prolog(struct intel_pxp *pxp, u32 *cmd, + int session_type, + int session_index); +int intel_pxp_cmd_add_epilog(u32 *cmd); +int intel_pxp_cmd_add_inline_termination(u32 *cmd); -int intel_pxp_cmd_submit(struct intel_pxp *pxp, u32 *cmd, int cmd_size_in_dw); #endif /* __INTEL_PXP_SM_H__ */ From patchwork Wed Jan 6 23:12:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 12002423 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8CFD2C433E6 for ; Wed, 6 Jan 2021 23:12:35 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 515B4225AC for ; Wed, 6 Jan 2021 23:12:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 515B4225AC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id ABA5E6E33F; Wed, 6 Jan 2021 23:12:26 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 972796E30F for ; Wed, 6 Jan 2021 23:12:24 +0000 (UTC) IronPort-SDR: vCOfuB0NrGHwwb6kDEGsOArCbhrfyBM8pXnQTx3i5QyeOQgPTq3Ib8KE/ABq8Qg6RY/+vhcFro ndb3Z8zNhmVA== X-IronPort-AV: E=McAfee;i="6000,8403,9856"; a="195900073" X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="195900073" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jan 2021 15:12:23 -0800 IronPort-SDR: rQN8OJ5iz70SXq6Vxa356NxhPjOj8PPru2b8PnKB5dZPlJBSu1ZfP0iDjFlNhB8Rgb2evxEMGz 7/4N4NJEIySg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="567566126" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga006.fm.intel.com with ESMTP; 06 Jan 2021 15:12:23 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Wed, 6 Jan 2021 15:12:18 -0800 Message-Id: <20210106231223.8323-9-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210106231223.8323-1-sean.z.huang@intel.com> References: <20210106231223.8323-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [RFC-v19 08/13] drm/i915/pxp: Enable PXP power management 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: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" During the power event S3+ sleep/resume, hardware will lose all the encryption keys for every hardware session, even though the software session state was marked as alive after resume. So to handle such case, PXP should terminate all the hardware sessions and cleanup all the software states after the power cycle. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/Makefile | 1 + drivers/gpu/drm/i915/gt/intel_gt_pm.c | 4 ++ drivers/gpu/drm/i915/i915_drv.c | 4 ++ drivers/gpu/drm/i915/pxp/intel_pxp_pm.c | 65 ++++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_pm.h | 31 +++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_types.h | 1 + 6 files changed, 106 insertions(+) create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_pm.c create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_pm.h diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 5599b92bea9b..7592fc8cbd89 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -265,6 +265,7 @@ i915-$(CONFIG_DRM_I915_PXP) += \ pxp/intel_pxp_arb.o \ pxp/intel_pxp_cmd.o \ pxp/intel_pxp_context.o \ + pxp/intel_pxp_pm.o \ pxp/intel_pxp_tee.o # Post-mortem debug and GPU hang state capture diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c index c94e8ac884eb..ae0387e419a2 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c @@ -20,6 +20,7 @@ #include "intel_rc6.h" #include "intel_rps.h" #include "intel_wakeref.h" +#include "pxp/intel_pxp_pm.h" static void user_forcewake(struct intel_gt *gt, bool suspend) { @@ -266,6 +267,8 @@ int intel_gt_resume(struct intel_gt *gt) intel_uc_resume(>->uc); + intel_pxp_pm_resume(>->pxp); + user_forcewake(gt, false); out_fw: @@ -300,6 +303,7 @@ void intel_gt_suspend_prepare(struct intel_gt *gt) user_forcewake(gt, true); wait_for_suspend(gt); + intel_pxp_pm_prepare_suspend(>->pxp); intel_uc_suspend(>->uc); } diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 207d50226e64..5923db004d9b 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -68,6 +68,8 @@ #include "gt/intel_gt_pm.h" #include "gt/intel_rc6.h" +#include "pxp/intel_pxp_pm.h" + #include "i915_debugfs.h" #include "i915_drv.h" #include "i915_ioc32.h" @@ -1338,6 +1340,8 @@ static int i915_drm_resume_early(struct drm_device *dev) intel_power_domains_resume(dev_priv); + intel_pxp_pm_resume_early(&dev_priv->gt.pxp); + enable_rpm_wakeref_asserts(&dev_priv->runtime_pm); return ret; diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c new file mode 100644 index 000000000000..ebe89262485c --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c @@ -0,0 +1,65 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright(c) 2020 Intel Corporation. + */ + +#include "intel_pxp_context.h" +#include "intel_pxp_arb.h" +#include "intel_pxp_pm.h" + +void intel_pxp_pm_prepare_suspend(struct intel_pxp *pxp) +{ + if (!pxp->ctx.inited) + return; + + mutex_lock(&pxp->ctx.mutex); + + /* Disable PXP-IOCTLs */ + pxp->ctx.global_state_in_suspend = true; + + mutex_unlock(&pxp->ctx.mutex); +} + +void intel_pxp_pm_resume_early(struct intel_pxp *pxp) +{ + if (!pxp->ctx.inited) + return; + + mutex_lock(&pxp->ctx.mutex); + + if (pxp->ctx.global_state_in_suspend) { + /* reset the attacked flag even there was a pending */ + pxp->ctx.global_state_attacked = false; + + pxp->ctx.flag_display_hm_surface_keys = false; + } + + mutex_unlock(&pxp->ctx.mutex); +} + +int intel_pxp_pm_resume(struct intel_pxp *pxp) +{ + int ret = 0; + struct intel_gt *gt = container_of(pxp, typeof(*gt), pxp); + + if (!pxp->ctx.inited) + return 0; + + mutex_lock(&pxp->ctx.mutex); + + /* Re-enable PXP-IOCTLs */ + if (pxp->ctx.global_state_in_suspend) { + ret = intel_pxp_arb_terminate_session(pxp); + if (ret) { + drm_err(>->i915->drm, "Failed to terminate the arb session\n"); + goto end; + } + + pxp->ctx.global_state_in_suspend = false; + } + +end: + mutex_unlock(&pxp->ctx.mutex); + + return ret; +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_pm.h b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.h new file mode 100644 index 000000000000..135bfb59aaf7 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_PM_H__ +#define __INTEL_PXP_PM_H__ + +#include "i915_drv.h" + +#ifdef CONFIG_DRM_I915_PXP +void intel_pxp_pm_prepare_suspend(struct intel_pxp *pxp); + +void intel_pxp_pm_resume_early(struct intel_pxp *pxp); +int intel_pxp_pm_resume(struct intel_pxp *pxp); +#else +static inline void intel_pxp_pm_prepare_suspend(struct intel_pxp *pxp) +{ +} + +static inline void intel_pxp_pm_resume_early(struct intel_pxp *pxp) +{ +} + +static inline int intel_pxp_pm_resume(struct intel_pxp *pxp) +{ + return 0; +} +#endif + +#endif /* __INTEL_PXP_PM_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_types.h b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h index 0b140aaeb6ed..13d7b502b7f9 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_types.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h @@ -44,6 +44,7 @@ struct pxp_context { bool flag_display_hm_surface_keys; bool global_state_attacked; + bool global_state_in_suspend; }; struct intel_pxp { From patchwork Wed Jan 6 23:12:19 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 12002429 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0351AC433E6 for ; Wed, 6 Jan 2021 23:12:38 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id A8237225AC for ; Wed, 6 Jan 2021 23:12:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A8237225AC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7738A6E3AA; Wed, 6 Jan 2021 23:12:27 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9AF7E6E314 for ; Wed, 6 Jan 2021 23:12:24 +0000 (UTC) IronPort-SDR: e1st5ECBm6s/Z/GTMO7brhlKM7Eu2H4yv3mpV/NCOqn0zQQc+EL+4hGy+J/fy7t6321gNUZ80M d8Q53FGMOIpw== X-IronPort-AV: E=McAfee;i="6000,8403,9856"; a="195900074" X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="195900074" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jan 2021 15:12:23 -0800 IronPort-SDR: Hh/O6bDYyO5poqo0xVPQd2a1DEuJuu1Cw6KUELubkTrvzn6PLIB2VQL5d2KwysObO5WQbs/Pgc vmKCYqCF5aAw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="567566127" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga006.fm.intel.com with ESMTP; 06 Jan 2021 15:12:23 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Wed, 6 Jan 2021 15:12:19 -0800 Message-Id: <20210106231223.8323-10-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210106231223.8323-1-sean.z.huang@intel.com> References: <20210106231223.8323-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [RFC-v19 09/13] drm/i915/pxp: Expose session state for display protection flip 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: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Implement the intel_pxp_gem_object_status() to allow i915 display querying the current PXP session state. In the design, display should not perform protection flip on the protected buffers if there is no PXP session alive. And Implement the funciton to set the protected flag for gem context. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/pxp/intel_pxp.c | 21 +++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp.h | 18 ++++++++++++++++++ 2 files changed, 39 insertions(+) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index 23d4cfc1fb1f..a28a459532c2 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -158,3 +158,24 @@ void intel_pxp_irq_handler(struct intel_pxp *pxp, u16 iir) pxp->current_events |= events; schedule_work(&pxp->irq_work); } + +bool intel_pxp_gem_object_status(struct drm_i915_private *i915) +{ + if (i915->gt.pxp.ctx.inited && + i915->gt.pxp.ctx.flag_display_hm_surface_keys) + return true; + else + return false; +} + +int intel_pxp_gem_context_set_protected(struct drm_i915_private *i915, + unsigned long *user_flags, + u32 protected_bit) +{ + if (!user_flags || !protected_bit || + !intel_pxp_arb_session_is_in_play(&i915->gt.pxp)) + return -EINVAL; + + set_bit(protected_bit, user_flags); + return 0; +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h index cdaa6ce6fdca..ff1c1c0e720c 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -29,6 +29,8 @@ enum pxp_protection_modes { PROTECTION_MODE_ALL }; +struct drm_i915_private; + #ifdef CONFIG_DRM_I915_PXP void intel_pxp_irq_handler(struct intel_pxp *pxp, u16 iir); int i915_pxp_teardown_required_callback(struct intel_pxp *pxp); @@ -36,6 +38,10 @@ int i915_pxp_global_terminate_complete_callback(struct intel_pxp *pxp); void intel_pxp_init(struct intel_pxp *pxp); void intel_pxp_fini(struct intel_pxp *pxp); +bool intel_pxp_gem_object_status(struct drm_i915_private *i915); +int intel_pxp_gem_context_set_protected(struct drm_i915_private *i915, + unsigned long *user_flag, + u32 protected_bit); #else static inline void intel_pxp_irq_handler(struct intel_pxp *pxp, u16 iir) { @@ -58,6 +64,18 @@ static inline void intel_pxp_init(struct intel_pxp *pxp) static inline void intel_pxp_fini(struct intel_pxp *pxp) { } + +static inline bool intel_pxp_gem_object_status(struct drm_i915_private *i915) +{ + return false; +} + +static inline int intel_pxp_gem_context_set_protected(struct drm_i915_private *i915, + unsigned long *user_flag, + u32 protected_bit) +{ + return 0; +} #endif #endif /* __INTEL_PXP_H__ */ From patchwork Wed Jan 6 23:12:20 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 12002419 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 87C5CC433E9 for ; Wed, 6 Jan 2021 23:12:33 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 456F3225AC for ; Wed, 6 Jan 2021 23:12:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 456F3225AC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5933D6E334; Wed, 6 Jan 2021 23:12:26 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id B0E646E30D for ; Wed, 6 Jan 2021 23:12:24 +0000 (UTC) IronPort-SDR: d81SvLGspdAy9mz+QbeQjSJVZqg0j3AbSHjN8OZXWFSCnFf9KnA3Ff4YW7yHgiGsJ+ZVy3EqJo E/JHpq3R8IDg== X-IronPort-AV: E=McAfee;i="6000,8403,9856"; a="195900075" X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="195900075" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jan 2021 15:12:23 -0800 IronPort-SDR: O05kaSFabEjOxTg4VpR5P3HDpCD3KhdLDEUuYCYQ+2f4PidUTRc5kkX8pW4Kj9DjYpqlqB616s MPKd+9fCUcXA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="567566131" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga006.fm.intel.com with ESMTP; 06 Jan 2021 15:12:23 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Wed, 6 Jan 2021 15:12:20 -0800 Message-Id: <20210106231223.8323-11-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210106231223.8323-1-sean.z.huang@intel.com> References: <20210106231223.8323-1-sean.z.huang@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [RFC-v19 10/13] mei: pxp: export pavp client to me client bus 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: Vitaly Lubart Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Vitaly Lubart Export PAVP client to work with i915_cp driver, for binding it uses kernel component framework. Signed-off-by: Vitaly Lubart Signed-off-by: Tomas Winkler --- drivers/misc/mei/Kconfig | 2 + drivers/misc/mei/Makefile | 1 + drivers/misc/mei/pxp/Kconfig | 13 ++ drivers/misc/mei/pxp/Makefile | 7 + drivers/misc/mei/pxp/mei_pxp.c | 230 +++++++++++++++++++++++++++++++++ drivers/misc/mei/pxp/mei_pxp.h | 18 +++ 6 files changed, 271 insertions(+) create mode 100644 drivers/misc/mei/pxp/Kconfig create mode 100644 drivers/misc/mei/pxp/Makefile create mode 100644 drivers/misc/mei/pxp/mei_pxp.c create mode 100644 drivers/misc/mei/pxp/mei_pxp.h diff --git a/drivers/misc/mei/Kconfig b/drivers/misc/mei/Kconfig index f5fd5b786607..0e0bcd0da852 100644 --- a/drivers/misc/mei/Kconfig +++ b/drivers/misc/mei/Kconfig @@ -47,3 +47,5 @@ config INTEL_MEI_TXE Intel Bay Trail source "drivers/misc/mei/hdcp/Kconfig" +source "drivers/misc/mei/pxp/Kconfig" + diff --git a/drivers/misc/mei/Makefile b/drivers/misc/mei/Makefile index f1c76f7ee804..d8e5165917f2 100644 --- a/drivers/misc/mei/Makefile +++ b/drivers/misc/mei/Makefile @@ -26,3 +26,4 @@ mei-$(CONFIG_EVENT_TRACING) += mei-trace.o CFLAGS_mei-trace.o = -I$(src) obj-$(CONFIG_INTEL_MEI_HDCP) += hdcp/ +obj-$(CONFIG_INTEL_MEI_PXP) += pxp/ diff --git a/drivers/misc/mei/pxp/Kconfig b/drivers/misc/mei/pxp/Kconfig new file mode 100644 index 000000000000..4029b96afc04 --- /dev/null +++ b/drivers/misc/mei/pxp/Kconfig @@ -0,0 +1,13 @@ + +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2020, Intel Corporation. All rights reserved. +# +config INTEL_MEI_PXP + tristate "Intel PXP services of ME Interface" + select INTEL_MEI_ME + depends on DRM_I915 + help + MEI Support for PXP Services on Intel platforms. + + Enables the ME FW services required for PXP support through + I915 display driver of Intel. diff --git a/drivers/misc/mei/pxp/Makefile b/drivers/misc/mei/pxp/Makefile new file mode 100644 index 000000000000..0329950d5794 --- /dev/null +++ b/drivers/misc/mei/pxp/Makefile @@ -0,0 +1,7 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Copyright (c) 2020, Intel Corporation. All rights reserved. +# +# Makefile - PXP client driver for Intel MEI Bus Driver. + +obj-$(CONFIG_INTEL_MEI_PXP) += mei_pxp.o diff --git a/drivers/misc/mei/pxp/mei_pxp.c b/drivers/misc/mei/pxp/mei_pxp.c new file mode 100644 index 000000000000..5bd61fe445e3 --- /dev/null +++ b/drivers/misc/mei/pxp/mei_pxp.c @@ -0,0 +1,230 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright © 2020 Intel Corporation + */ + +/** + * DOC: MEI_PXP Client Driver + * + * The mei_pxp driver acts as a translation layer between PXP + * protocol implementer (I915) and ME FW by translating PXP + * negotiation messages to ME FW command payloads and vice versa. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "mei_pxp.h" + +/** + * mei_pxp_send_message() - Sends a PXP message to ME FW. + * @dev: device corresponding to the mei_cl_device + * @message: a message buffer to send + * @size: size of the message + * Return: 0 on Success, <0 on Failure + */ +static int +mei_pxp_send_message(struct device *dev, const void *message, size_t size) +{ + struct mei_cl_device *cldev; + ssize_t byte; + + if (!dev || !message) + return -EINVAL; + + cldev = to_mei_cl_device(dev); + + /* temporary drop const qualifier till the API is fixed */ + byte = mei_cldev_send(cldev, (u8 *)message, size); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_send failed. %zd\n", byte); + return byte; + } + + return 0; +} + +/** + * mei_pxp_receive_message() - Receives a PXP message from ME FW. + * @dev: device corresponding to the mei_cl_device + * @buffer: a message buffer to contain the received message + * @size: size of the buffer + * Return: bytes sent on Success, <0 on Failure + */ +static int +mei_pxp_receive_message(struct device *dev, void *buffer, size_t size) +{ + struct mei_cl_device *cldev; + ssize_t byte; + + if (!dev || !buffer) + return -EINVAL; + + cldev = to_mei_cl_device(dev); + + byte = mei_cldev_recv(cldev, buffer, size); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_recv failed. %zd\n", byte); + return byte; + } + + return byte; +} + +static const struct i915_pxp_component_ops mei_pxp_ops = { + .owner = THIS_MODULE, + .send = mei_pxp_send_message, + .receive = mei_pxp_receive_message, +}; + +static int mei_component_master_bind(struct device *dev) +{ + struct mei_cl_device *cldev = to_mei_cl_device(dev); + struct i915_pxp_comp_master *comp_master = mei_cldev_get_drvdata(cldev); + int ret; + + dev_dbg(dev, "%s\n", __func__); + comp_master->ops = &mei_pxp_ops; + comp_master->tee_dev = dev; + ret = component_bind_all(dev, comp_master); + if (ret < 0) + return ret; + + return 0; +} + +static void mei_component_master_unbind(struct device *dev) +{ + struct mei_cl_device *cldev = to_mei_cl_device(dev); + struct i915_pxp_comp_master *comp_master = mei_cldev_get_drvdata(cldev); + + dev_dbg(dev, "%s\n", __func__); + component_unbind_all(dev, comp_master); +} + +static const struct component_master_ops mei_component_master_ops = { + .bind = mei_component_master_bind, + .unbind = mei_component_master_unbind, +}; + +/** + * mei_pxp_component_match - compare function for matching mei pxp. + * + * The function checks if the driver is i915, the subcomponent is PXP + * and the grand parent of pxp and the parent of i915 are the same + * PCH device. + * + * @dev: master device + * @subcomponent: subcomponent to match (I915_COMPONENT_PXP) + * @data: compare data (mei pxp device) + * + * Return: + * * 1 - if components match + * * 0 - otherwise + */ +static int mei_pxp_component_match(struct device *dev, int subcomponent, + void *data) +{ + struct device *base = data; + + if (subcomponent != I915_COMPONENT_PXP) + return 0; + + if (strcmp(dev->driver->name, "i915") == 0) { + base = base->parent; + if (!base) + return 0; + + base = base->parent; + dev = dev->parent; + return (base && dev && dev == base); + } + + return 0; +} + +static int mei_pxp_probe(struct mei_cl_device *cldev, + const struct mei_cl_device_id *id) +{ + struct i915_pxp_comp_master *comp_master; + struct component_match *master_match; + int ret; + + ret = mei_cldev_enable(cldev); + if (ret < 0) { + dev_err(&cldev->dev, "mei_cldev_enable Failed. %d\n", ret); + goto enable_err_exit; + } + + comp_master = kzalloc(sizeof(*comp_master), GFP_KERNEL); + if (!comp_master) { + ret = -ENOMEM; + goto err_exit; + } + + master_match = NULL; + component_match_add_typed(&cldev->dev, &master_match, + mei_pxp_component_match, &cldev->dev); + if (IS_ERR_OR_NULL(master_match)) { + ret = -ENOMEM; + goto err_exit; + } + + mei_cldev_set_drvdata(cldev, comp_master); + ret = component_master_add_with_match(&cldev->dev, + &mei_component_master_ops, + master_match); + if (ret < 0) { + dev_err(&cldev->dev, "Master comp add failed %d\n", ret); + goto err_exit; + } + + return 0; + +err_exit: + mei_cldev_set_drvdata(cldev, NULL); + kfree(comp_master); + mei_cldev_disable(cldev); +enable_err_exit: + return ret; +} + +static int mei_pxp_remove(struct mei_cl_device *cldev) +{ + struct i915_pxp_comp_master *comp_master = mei_cldev_get_drvdata(cldev); + + component_master_del(&cldev->dev, &mei_component_master_ops); + kfree(comp_master); + mei_cldev_set_drvdata(cldev, NULL); + + return mei_cldev_disable(cldev); +} + +/* fbf6fcf1-96cf-4e2e-a6a6-1bab8cbe36b1 : PAVP GUID*/ +#define MEI_GUID_PXP GUID_INIT(0xfbf6fcf1, 0x96cf, 0x4e2e, 0xA6, \ + 0xa6, 0x1b, 0xab, 0x8c, 0xbe, 0x36, 0xb1) + +static struct mei_cl_device_id mei_pxp_tbl[] = { + { .uuid = MEI_GUID_PXP, .version = MEI_CL_VERSION_ANY }, + { } +}; +MODULE_DEVICE_TABLE(mei, mei_pxp_tbl); + +static struct mei_cl_driver mei_pxp_driver = { + .id_table = mei_pxp_tbl, + .name = KBUILD_MODNAME, + .probe = mei_pxp_probe, + .remove = mei_pxp_remove, +}; + +module_mei_cl_driver(mei_pxp_driver); + +MODULE_AUTHOR("Intel Corporation"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("MEI PXP"); diff --git a/drivers/misc/mei/pxp/mei_pxp.h b/drivers/misc/mei/pxp/mei_pxp.h new file mode 100644 index 000000000000..e7b15373fefd --- /dev/null +++ b/drivers/misc/mei/pxp/mei_pxp.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright © 2020 Intel Corporation + * + * Authors: + * Vitaly Lubart + */ + +#ifndef __MEI_PXP_H__ +#define __MEI_PXP_H__ + +/* me_pxp_status: Enumeration of all PXP Status Codes */ +enum me_pxp_status { + ME_PXP_STATUS_SUCCESS = 0x0000, + +}; + +#endif /* __MEI_PXP_H__ */ From patchwork Wed Jan 6 23:12:21 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 12002417 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 74B68C433E0 for ; Wed, 6 Jan 2021 23:12:32 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 3AF9B225AC for ; Wed, 6 Jan 2021 23:12:32 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3AF9B225AC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9600F6E30D; Wed, 6 Jan 2021 23:12:26 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id BFBB06E321 for ; Wed, 6 Jan 2021 23:12:24 +0000 (UTC) IronPort-SDR: Q1lEuvHkUAZE7R6q6uT3TgQIDdHU7rpb0ISnIw7J4ANMiizlpjZoTqpYpo3TMuitv8gHg2Y8Dn jjpKSAM0JJmA== X-IronPort-AV: E=McAfee;i="6000,8403,9856"; a="195900076" X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="195900076" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jan 2021 15:12:23 -0800 IronPort-SDR: AclAf1TxGOYcG2M5+NstLbFgvHqQ2NqLSwLYUYmw1eQZcgEpjMicdFrPcdPwOUM2BPr6Y2xQHU YgaEpR8fPZYw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="567566134" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga006.fm.intel.com with ESMTP; 06 Jan 2021 15:12:23 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Wed, 6 Jan 2021 15:12:21 -0800 Message-Id: <20210106231223.8323-12-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210106231223.8323-1-sean.z.huang@intel.com> References: <20210106231223.8323-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [RFC-v19 11/13] drm/i915/uapi: introduce drm_i915_gem_create_ext 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: Joonas@freedesktop.org, Bommu Krishnaiah , Matthew@freedesktop.org MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Bommu Krishnaiah Same old gem_create but with now with extensions support. This is needed to support various upcoming usecases. For now we use the extensions mechanism to support PAVP. Signed-off-by: Bommu Krishnaiah Signed-off-by: Matthew Auld Cc: Joonas Lahtinen joonas.lahtinen@linux.intel.com Cc: Matthew Auld matthew.auld@intel.com Cc: Telukuntla Sreedhar --- drivers/gpu/drm/i915/i915_drv.c | 2 +- drivers/gpu/drm/i915/i915_gem.c | 42 ++++++++++++++++++++++++++++- include/uapi/drm/i915_drm.h | 47 +++++++++++++++++++++++++++++++++ 3 files changed, 89 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 5923db004d9b..ca526923d9b3 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -1727,7 +1727,7 @@ static const struct drm_ioctl_desc i915_ioctls[] = { DRM_IOCTL_DEF_DRV(I915_GEM_THROTTLE, i915_gem_throttle_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_ENTERVT, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF_DRV(I915_GEM_LEAVEVT, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF_DRV(I915_GEM_CREATE, i915_gem_create_ioctl, DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(I915_GEM_CREATE_EXT, i915_gem_create_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_PREAD, i915_gem_pread_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_PWRITE, i915_gem_pwrite_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_MMAP, i915_gem_mmap_ioctl, DRM_RENDER_ALLOW), diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 17a4636ee542..c53b13c02e59 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -53,6 +53,7 @@ #include "i915_drv.h" #include "i915_trace.h" #include "i915_vgpu.h" +#include "i915_user_extensions.h" #include "intel_pm.h" @@ -260,6 +261,35 @@ i915_gem_dumb_create(struct drm_file *file, &args->size, &args->handle); } +struct create_ext { + struct drm_i915_private *i915; +}; + +static int __create_setparam(struct drm_i915_gem_object_param *args, + struct create_ext *ext_data) +{ + if (!(args->param & I915_OBJECT_PARAM)) { + DRM_DEBUG("Missing I915_OBJECT_PARAM namespace\n"); + return -EINVAL; + } + + return -EINVAL; +} + +static int create_setparam(struct i915_user_extension __user *base, void *data) +{ + struct drm_i915_gem_create_ext_setparam ext; + + if (copy_from_user(&ext, base, sizeof(ext))) + return -EFAULT; + + return __create_setparam(&ext.param, data); +} + +static const i915_user_extension_fn create_extensions[] = { + [I915_GEM_CREATE_EXT_SETPARAM] = create_setparam, +}; + /** * Creates a new mm object and returns a handle to it. * @dev: drm device pointer @@ -271,10 +301,20 @@ i915_gem_create_ioctl(struct drm_device *dev, void *data, struct drm_file *file) { struct drm_i915_private *i915 = to_i915(dev); - struct drm_i915_gem_create *args = data; + struct create_ext ext_data = { .i915 = i915 }; + struct drm_i915_gem_create_ext *args = data; + int ret; i915_gem_flush_free_objects(i915); + ret = i915_user_extensions(u64_to_user_ptr(args->extensions), + create_extensions, + ARRAY_SIZE(create_extensions), + &ext_data); + if (ret) + return ret; + + return i915_gem_create(file, intel_memory_region_by_type(i915, INTEL_MEMORY_SYSTEM), diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index 1987e2ea79a3..f9a1d26824b6 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -392,6 +392,7 @@ typedef struct _drm_i915_sarea { #define DRM_IOCTL_I915_GEM_ENTERVT DRM_IO(DRM_COMMAND_BASE + DRM_I915_GEM_ENTERVT) #define DRM_IOCTL_I915_GEM_LEAVEVT DRM_IO(DRM_COMMAND_BASE + DRM_I915_GEM_LEAVEVT) #define DRM_IOCTL_I915_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_CREATE, struct drm_i915_gem_create) +#define DRM_IOCTL_I915_GEM_CREATE_EXT DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_CREATE, struct drm_i915_gem_create_ext) #define DRM_IOCTL_I915_GEM_PREAD DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_PREAD, struct drm_i915_gem_pread) #define DRM_IOCTL_I915_GEM_PWRITE DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_PWRITE, struct drm_i915_gem_pwrite) #define DRM_IOCTL_I915_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_MMAP, struct drm_i915_gem_mmap) @@ -729,6 +730,27 @@ struct drm_i915_gem_create { __u32 pad; }; +struct drm_i915_gem_create_ext { + /** + * Requested size for the object. + * + * The (page-aligned) allocated size for the object will be returned. + */ + __u64 size; + /** + * Returned handle for the object. + * + * Object handles are nonzero. + */ + __u32 handle; + __u32 pad; +#define I915_GEM_CREATE_EXT_SETPARAM (1u << 0) +#define I915_GEM_CREATE_EXT_FLAGS_UNKNOWN \ + (-(I915_GEM_CREATE_EXT_SETPARAM << 1)) + __u64 extensions; + +}; + struct drm_i915_gem_pread { /** Handle for the object being read. */ __u32 handle; @@ -1699,6 +1721,31 @@ struct drm_i915_gem_context_param { __u64 value; }; +struct drm_i915_gem_object_param { + /* Object handle (0 for I915_GEM_CREATE_EXT_SETPARAM) */ + __u32 handle; + + /* Data pointer size */ + __u32 size; + +/* + * I915_OBJECT_PARAM: + * + * Select object namespace for the param. + */ +#define I915_OBJECT_PARAM (1ull<<32) + + __u64 param; + + /* Data value or pointer */ + __u64 data; +}; + +struct drm_i915_gem_create_ext_setparam { + struct i915_user_extension base; + struct drm_i915_gem_object_param param; +}; + /** * Context SSEU programming * From patchwork Wed Jan 6 23:12:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 12002427 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0D61AC43381 for ; Wed, 6 Jan 2021 23:12:37 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id C71A5225AC for ; Wed, 6 Jan 2021 23:12:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C71A5225AC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7EA4D6E3AC; Wed, 6 Jan 2021 23:12:27 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id DA0706E30F for ; Wed, 6 Jan 2021 23:12:24 +0000 (UTC) IronPort-SDR: lxRdQU3Vh4ipOObC4RQpaV2kBWMDY6Ix366w19J1C7o6hdl/59aNGS1XnLHqylieTNCHiZia5L 5ocSdCraH5ag== X-IronPort-AV: E=McAfee;i="6000,8403,9856"; a="195900077" X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="195900077" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jan 2021 15:12:23 -0800 IronPort-SDR: 7DOKrHnOzuAzZT3L4+WsTXHmmEnCBeEvj3sMxQ8CxZFJor5vaInkZKPAI3jd5OFow7GzQxdgbi xhRBKuhSbohQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="567566137" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga006.fm.intel.com with ESMTP; 06 Jan 2021 15:12:23 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Wed, 6 Jan 2021 15:12:22 -0800 Message-Id: <20210106231223.8323-13-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210106231223.8323-1-sean.z.huang@intel.com> References: <20210106231223.8323-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [RFC-v19 12/13] drm/i915/pxp: User interface for Protected buffer 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: Bommu Krishnaiah , Huang Sean Z , Kondapally Kalyan MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Bommu Krishnaiah This api allow user mode to create Protected buffer and context creation. Signed-off-by: Bommu Krishnaiah Cc: Telukuntla Sreedhar Cc: Kondapally Kalyan Cc: Gupta Anshuman Cc: Huang Sean Z --- drivers/gpu/drm/i915/gem/i915_gem_context.c | 19 +++++++++++++-- drivers/gpu/drm/i915/gem/i915_gem_context.h | 5 ++++ .../gpu/drm/i915/gem/i915_gem_context_types.h | 2 +- .../gpu/drm/i915/gem/i915_gem_object_types.h | 5 ++++ drivers/gpu/drm/i915/i915_gem.c | 23 +++++++++++++++---- include/uapi/drm/i915_drm.h | 19 +++++++++++++++ 6 files changed, 66 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c index 68f58762d5e3..00d7ca3071e7 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_context.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c @@ -81,6 +81,8 @@ #include "i915_trace.h" #include "i915_user_extensions.h" +#include "pxp/intel_pxp.h" + #define ALL_L3_SLICES(dev) (1 << NUM_L3_SLICES(dev)) - 1 static struct i915_global_gem_context { @@ -2022,12 +2024,25 @@ static int ctx_setparam(struct drm_i915_file_private *fpriv, case I915_CONTEXT_PARAM_RECOVERABLE: if (args->size) ret = -EINVAL; - else if (args->value) - i915_gem_context_set_recoverable(ctx); + else if (args->value) { + if (!i915_gem_context_is_protected(ctx)) + i915_gem_context_set_recoverable(ctx); + else + ret = -EPERM; + } else i915_gem_context_clear_recoverable(ctx); break; + case I915_CONTEXT_PARAM_PROTECTED_CONTENT: + if (args->size) + ret = -EINVAL; + else if (args->value) + ret = intel_pxp_gem_context_set_protected(ctx->i915, + &ctx->user_flags, + UCONTEXT_PROTECTED); + break; + case I915_CONTEXT_PARAM_PRIORITY: ret = set_priority(ctx, args); break; diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.h b/drivers/gpu/drm/i915/gem/i915_gem_context.h index b5c908f3f4f2..173154fdc311 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_context.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.h @@ -70,6 +70,11 @@ static inline void i915_gem_context_set_recoverable(struct i915_gem_context *ctx set_bit(UCONTEXT_RECOVERABLE, &ctx->user_flags); } +static inline bool i915_gem_context_is_protected(struct i915_gem_context *ctx) +{ + return test_bit(UCONTEXT_PROTECTED, &ctx->user_flags); +} + static inline void i915_gem_context_clear_recoverable(struct i915_gem_context *ctx) { clear_bit(UCONTEXT_RECOVERABLE, &ctx->user_flags); diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context_types.h b/drivers/gpu/drm/i915/gem/i915_gem_context_types.h index 1449f54924e0..0917c9431c65 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_context_types.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_context_types.h @@ -134,7 +134,7 @@ struct i915_gem_context { #define UCONTEXT_BANNABLE 2 #define UCONTEXT_RECOVERABLE 3 #define UCONTEXT_PERSISTENCE 4 - +#define UCONTEXT_PROTECTED 5 /** * @flags: small set of booleans */ diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h index e2d9b7e1e152..90ac955463f4 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h @@ -161,6 +161,11 @@ struct drm_i915_gem_object { } mmo; I915_SELFTEST_DECLARE(struct list_head st_link); + /** + * @user_flags: small set of booleans set by the user + */ + unsigned long user_flags; +#define I915_BO_PROTECTED BIT(0) unsigned long flags; #define I915_BO_ALLOC_CONTIGUOUS BIT(0) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index c53b13c02e59..611a0b5ab51f 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -184,7 +184,8 @@ static int i915_gem_create(struct drm_file *file, struct intel_memory_region *mr, u64 *size_p, - u32 *handle_p) + u32 *handle_p, + u64 user_flags) { struct drm_i915_gem_object *obj; u32 handle; @@ -204,6 +205,8 @@ i915_gem_create(struct drm_file *file, if (IS_ERR(obj)) return PTR_ERR(obj); + obj->user_flags = user_flags; + ret = drm_gem_handle_create(file, &obj->base, &handle); /* drop reference from allocate - handle holds it now */ i915_gem_object_put(obj); @@ -258,11 +261,12 @@ i915_gem_dumb_create(struct drm_file *file, return i915_gem_create(file, intel_memory_region_by_type(to_i915(dev), mem_type), - &args->size, &args->handle); + &args->size, &args->handle, 0); } struct create_ext { - struct drm_i915_private *i915; + struct drm_i915_private *i915; + unsigned long user_flags; }; static int __create_setparam(struct drm_i915_gem_object_param *args, @@ -273,6 +277,17 @@ static int __create_setparam(struct drm_i915_gem_object_param *args, return -EINVAL; } + switch (lower_32_bits(args->param)) { + case I915_PARAM_PROTECTED_CONTENT: + if (args->size) { + return -EINVAL; + } else if (args->data) { + ext_data->user_flags = args->data; + return 0; + } + break; + } + return -EINVAL; } @@ -318,7 +333,7 @@ i915_gem_create_ioctl(struct drm_device *dev, void *data, return i915_gem_create(file, intel_memory_region_by_type(i915, INTEL_MEMORY_SYSTEM), - &args->size, &args->handle); + &args->size, &args->handle, ext_data.user_flags); } static int diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index f9a1d26824b6..6822f11814fa 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -1716,6 +1716,15 @@ struct drm_i915_gem_context_param { * Default is 16 KiB. */ #define I915_CONTEXT_PARAM_RINGSIZE 0xc + +/* + * I915_CONTEXT_PARAM_PROTECTED_CONTENT: + * + * If set to true (1) PAVP content protection is enabled. + * When enabled, the context is marked unrecoverable and may + * become invalid due to PAVP teardown event or other error. + */ +#define I915_CONTEXT_PARAM_PROTECTED_CONTENT 0xd /* Must be kept compact -- no holes and well documented */ __u64 value; @@ -1735,6 +1744,16 @@ struct drm_i915_gem_object_param { */ #define I915_OBJECT_PARAM (1ull<<32) +/* + * I915_PARAM_PROTECTED_CONTENT: + * + * If set to true (1) buffer contents is expected to be protected by + * PAVP encryption and requires decryption for scan out and processing. + * Protected buffers can only be used in PAVP protected contexts. + * A protected buffer may become invalid as a result of PAVP teardown. + */ +#define I915_PARAM_PROTECTED_CONTENT 0x1 + __u64 param; /* Data value or pointer */ From patchwork Wed Jan 6 23:12:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 12002425 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 440ADC433DB for ; Wed, 6 Jan 2021 23:12:36 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 12F1B225AC for ; Wed, 6 Jan 2021 23:12:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 12F1B225AC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D97896E342; Wed, 6 Jan 2021 23:12:26 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id D532E6E303 for ; Wed, 6 Jan 2021 23:12:24 +0000 (UTC) IronPort-SDR: S8cR3iQPMnXlL0pw5ZLL4vENn+3NGASd1tRuot7p4G1BewsuAIK1xz3Z9UnJtgxWQufR04lgSN 27dmvlG0jk3Q== X-IronPort-AV: E=McAfee;i="6000,8403,9856"; a="195900078" X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="195900078" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jan 2021 15:12:23 -0800 IronPort-SDR: S2T7rXHNS9e8kG3e8v7kKjJ8hvZ4plmEszb1aRBriS8RqbGUzNkvOgP9FCrdgi411lGbz+tn8Y E9Meb9WkcBvg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.79,328,1602572400"; d="scan'208";a="567566139" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga006.fm.intel.com with ESMTP; 06 Jan 2021 15:12:23 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Wed, 6 Jan 2021 15:12:23 -0800 Message-Id: <20210106231223.8323-14-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210106231223.8323-1-sean.z.huang@intel.com> References: <20210106231223.8323-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [RFC-v19 13/13] drm/i915/pxp: Add plane decryption support 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: Bommu Krishnaiah MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Anshuman Gupta Add support to enable/disable PLANE_SURF Decryption Request bit. It requires only to enable plane decryption support when following condition met. 1. PAVP session is enabled. 2. Buffer object is protected. v2: - Rebased to libva_cp-drm-tip_tgl_cp tree. - Used gen fb obj user_flags instead gem_object_metadata. [Krishna] Cc: Bommu Krishnaiah Cc: Huang, Sean Z Signed-off-by: Anshuman Gupta --- drivers/gpu/drm/i915/display/intel_sprite.c | 21 ++++++++++++++++++--- drivers/gpu/drm/i915/i915_reg.h | 1 + 2 files changed, 19 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c index cf3589fd0ddb..39f8c922ce66 100644 --- a/drivers/gpu/drm/i915/display/intel_sprite.c +++ b/drivers/gpu/drm/i915/display/intel_sprite.c @@ -39,6 +39,8 @@ #include #include +#include "pxp/intel_pxp.h" + #include "i915_drv.h" #include "i915_trace.h" #include "i915_vgpu.h" @@ -768,6 +770,11 @@ icl_program_input_csc(struct intel_plane *plane, PLANE_INPUT_CSC_POSTOFF(pipe, plane_id, 2), 0x0); } +static bool intel_fb_obj_protected(const struct drm_i915_gem_object *obj) +{ + return obj->user_flags & I915_BO_PROTECTED ? true : false; +} + static void skl_plane_async_flip(struct intel_plane *plane, const struct intel_crtc_state *crtc_state, @@ -804,6 +811,7 @@ skl_program_plane(struct intel_plane *plane, u32 surf_addr = plane_state->color_plane[color_plane].offset; u32 stride = skl_plane_stride(plane_state, color_plane); const struct drm_framebuffer *fb = plane_state->hw.fb; + const struct drm_i915_gem_object *obj = intel_fb_obj(fb); int aux_plane = intel_main_to_aux_plane(fb, color_plane); int crtc_x = plane_state->uapi.dst.x1; int crtc_y = plane_state->uapi.dst.y1; @@ -814,7 +822,7 @@ skl_program_plane(struct intel_plane *plane, u8 alpha = plane_state->hw.alpha >> 8; u32 plane_color_ctl = 0, aux_dist = 0; unsigned long irqflags; - u32 keymsk, keymax; + u32 keymsk, keymax, plane_surf; u32 plane_ctl = plane_state->ctl; plane_ctl |= skl_plane_ctl_crtc(crtc_state); @@ -890,8 +898,15 @@ skl_program_plane(struct intel_plane *plane, * the control register just before the surface register. */ intel_de_write_fw(dev_priv, PLANE_CTL(pipe, plane_id), plane_ctl); - intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id), - intel_plane_ggtt_offset(plane_state) + surf_addr); + plane_surf = intel_plane_ggtt_offset(plane_state) + surf_addr; + + if (intel_pxp_gem_object_status(dev_priv) && + intel_fb_obj_protected(obj)) + plane_surf |= PLANE_SURF_DECRYPTION_ENABLED; + else + plane_surf &= ~PLANE_SURF_DECRYPTION_ENABLED; + + intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id), plane_surf); if (plane_state->scaler_id >= 0) skl_program_scaler(plane, crtc_state, plane_state); diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 1e8dfe435ca8..0ea7e2a402ae 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -7209,6 +7209,7 @@ enum { #define _PLANE_SURF_3(pipe) _PIPE(pipe, _PLANE_SURF_3_A, _PLANE_SURF_3_B) #define PLANE_SURF(pipe, plane) \ _MMIO_PLANE(plane, _PLANE_SURF_1(pipe), _PLANE_SURF_2(pipe)) +#define PLANE_SURF_DECRYPTION_ENABLED REG_BIT(2) #define _PLANE_OFFSET_1_B 0x711a4 #define _PLANE_OFFSET_2_B 0x712a4