From patchwork Sun Nov 15 20:23:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906795 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 EF504C2D0E4 for ; Sun, 15 Nov 2020 20:23:49 +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 A3BA8238E6 for ; Sun, 15 Nov 2020 20:23:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A3BA8238E6 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 ED15389F07; Sun, 15 Nov 2020 20:23:48 +0000 (UTC) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5672789F03 for ; Sun, 15 Nov 2020 20:23:48 +0000 (UTC) IronPort-SDR: e0q7Ta2XI9pzUESzQ2nr/P+FSNp663kms3x5i0gRYGrDD/A9pKoSUGKw+NOgWqIobMEOAkRwEv K1OXzDSmmQPA== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="234832198" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="234832198" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:47 -0800 IronPort-SDR: Nr12CAZCZe8xJl8V622/cNG4P3mtBiafMGPWmFq0LH0Fxwi4oLsxdU4EKmYzH27iAwdxOmUpyN zREGIUSVnTdA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005337" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:21 -0800 Message-Id: <20201115202347.29224-1-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 Subject: [Intel-gfx] [PATCH 01/27] 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, that helps ring3 to establish the hardware protected session and manage the status of each alive software session, as well as the life cycle of each session. By design PXP will expose ioctl so allow ring3 to create, set, and destroy each session. It will also provide the communication chanel to TEE (Trusted Execution Environment) for the protected hardware session creation. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/Makefile | 4 ++++ drivers/gpu/drm/i915/i915_drv.c | 4 ++++ drivers/gpu/drm/i915/i915_drv.h | 4 ++++ drivers/gpu/drm/i915/pxp/intel_pxp.c | 20 ++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp.h | 22 ++++++++++++++++++++++ include/uapi/drm/i915_drm.h | 5 +++++ 6 files changed, 59 insertions(+) create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp.c create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp.h diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index e5574e506a5c..8274fea96009 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -254,6 +254,10 @@ i915-y += \ i915-y += i915_perf.o +# Protected execution platform (PXP) support +i915-y += \ + pxp/intel_pxp.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/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index f2389ba49c69..c8b9c42fcbd6 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -889,6 +889,8 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (ret) goto out_cleanup_gem; + intel_pxp_init(i915); + i915_driver_register(i915); enable_rpm_wakeref_asserts(&i915->runtime_pm); @@ -938,6 +940,8 @@ void i915_driver_remove(struct drm_i915_private *i915) /* Flush any external code that still may be under the RCU lock */ synchronize_rcu(); + intel_pxp_uninit(i915); + i915_gem_suspend(i915); drm_atomic_helper_shutdown(&i915->drm); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 15be8debae54..f34ed07a68ee 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -105,6 +105,8 @@ #include "intel_region_lmem.h" +#include "pxp/intel_pxp.h" + /* General customization: */ @@ -1215,6 +1217,8 @@ struct drm_i915_private { /* Mutex to protect the above hdcp component related values. */ struct mutex hdcp_comp_mutex; + struct intel_pxp pxp; + 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 new file mode 100644 index 000000000000..a469c55e3e54 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020 Intel Corporation. + */ + +#include "i915_drv.h" +#include "intel_pxp.h" + +int intel_pxp_init(struct drm_i915_private *i915) +{ + int ret; + + drm_info(&i915->drm, "i915_pxp_init\n"); + + return ret; +} + +void intel_pxp_uninit(struct drm_i915_private *i915) +{ +} 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..578f1126bada --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_H__ +#define __INTEL_PXP_H__ + +#include + +struct pxp_context; + +struct intel_pxp { + struct pxp_context *r0ctx; +}; + +struct drm_i915_private; + +int intel_pxp_init(struct drm_i915_private *i915); +void intel_pxp_uninit(struct drm_i915_private *i915); + +#endif diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index fa1f3d62f9a6..dc101264176b 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -1898,6 +1898,11 @@ struct drm_i915_gem_vm_control { __u32 vm_id; }; +struct drm_i915_pxp_ops { + __u64 pxp_info_ptr; + __u32 pxp_info_size; +}; + struct drm_i915_reg_read { /* * Register offset. From patchwork Sun Nov 15 20:23:22 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906791 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 9B24CC2D0E4 for ; Sun, 15 Nov 2020 20:23:55 +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 534D2238E6 for ; Sun, 15 Nov 2020 20:23:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 534D2238E6 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 B9FAE89F2A; Sun, 15 Nov 2020 20:23:49 +0000 (UTC) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7423689F07 for ; Sun, 15 Nov 2020 20:23:48 +0000 (UTC) IronPort-SDR: twEAtFq7+f1t3aQ7cQJoPN5Nh6L6ROowSIXXKZ/Had0ncM9lDViUQOHIS+jn/8TahvPJo9FpBO AZn8HJ7npplA== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="234832199" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="234832199" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:47 -0800 IronPort-SDR: Pl2nOKIN3w5b6/9JhW0QCs8PfJ9BtL/982+PfunaplXdifsNViyNk1SDL123psAWXDCqGDhedm +9mpg/+ZdCgw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005338" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:22 -0800 Message-Id: <20201115202347.29224-2-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 02/27] 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 | 1 + drivers/gpu/drm/i915/pxp/intel_pxp.c | 95 ++++++++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp.h | 22 ++++++ 4 files changed, 122 insertions(+) diff --git a/drivers/gpu/drm/i915/gt/intel_gt_irq.c b/drivers/gpu/drm/i915/gt/intel_gt_irq.c index 257063a57101..d64013d0afb5 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_irq.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_irq.c @@ -13,6 +13,7 @@ #include "intel_gt_irq.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) { @@ -106,6 +107,9 @@ 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(gt, 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 7ea70b7ffcc6..faf6b06145fa 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -7941,6 +7941,7 @@ 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)) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index a469c55e3e54..d98bff4a0fde 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -6,15 +6,110 @@ #include "i915_drv.h" #include "intel_pxp.h" +static void intel_pxp_write_irq_mask_reg(struct drm_i915_private *i915, u32 mask) +{ + WARN_ON(INTEL_GEN(i915) < 11); + + /* crypto mask is in bit31-16 (Engine1 Interrupt Mask) */ + intel_uncore_write(&i915->uncore, GEN11_CRYPTO_RSVD_INTR_MASK, mask << 16); +} + +static void intel_pxp_unmask_irq(struct intel_gt *gt) +{ + lockdep_assert_held(>->irq_lock); + + intel_pxp_write_irq_mask_reg(gt->i915, 0); +} + +static void intel_pxp_mask_irq(struct intel_gt *gt, u32 mask) +{ + lockdep_assert_held(>->irq_lock); + + intel_pxp_write_irq_mask_reg(gt->i915, mask); +} + +static int intel_pxp_teardown_required_callback(struct drm_i915_private *i915) +{ + drm_dbg(&i915->drm, "%s was called\n", __func__); + + return 0; +} + +static int intel_pxp_global_terminate_complete_callback(struct drm_i915_private *i915) +{ + drm_dbg(&i915->drm, ">>> %s\n", __func__); + + return 0; +} + +static void intel_pxp_irq_work(struct work_struct *work) +{ + struct intel_pxp *pxp_ptr = container_of(work, typeof(*pxp_ptr), irq_work); + struct drm_i915_private *i915 = container_of(pxp_ptr, typeof(*i915), pxp); + u32 events = 0; + + spin_lock_irq(&i915->gt.irq_lock); + events = fetch_and_zero(&pxp_ptr->current_events); + spin_unlock_irq(&i915->gt.irq_lock); + + drm_dbg(&i915->drm, "%s was called with events=[%d]\n", __func__, events); + + if (events & PXP_IRQ_VECTOR_DISPLAY_PXP_STATE_TERMINATED || + events & PXP_IRQ_VECTOR_DISPLAY_APP_TERM_PER_FW_REQ) + intel_pxp_teardown_required_callback(i915); + + if (events & PXP_IRQ_VECTOR_PXP_DISP_STATE_RESET_COMPLETE) + intel_pxp_global_terminate_complete_callback(i915); + + spin_lock_irq(&i915->gt.irq_lock); + intel_pxp_unmask_irq(&i915->gt); + spin_unlock_irq(&i915->gt.irq_lock); +} + int intel_pxp_init(struct drm_i915_private *i915) { int ret; drm_info(&i915->drm, "i915_pxp_init\n"); + INIT_WORK(&i915->pxp.irq_work, intel_pxp_irq_work); + + i915->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); + return ret; } void intel_pxp_uninit(struct drm_i915_private *i915) { } + +/** + * intel_pxp_irq_handler - Proxies KCR interrupts to PXP. + * @gt: valid GT instance + * @iir: GT interrupt vector associated with the interrupt + * + * Dispatches each vector element into an IRQ to PXP. + */ +void intel_pxp_irq_handler(struct intel_gt *gt, u16 iir) +{ + struct drm_i915_private *i915 = gt->i915; + const u32 events = iir & i915->pxp.handled_irr; + + drm_dbg(&i915->drm, "%s was called with iir=[0x%04x]\n", __func__, iir); + + lockdep_assert_held(>->irq_lock); + + if (unlikely(!events)) { + drm_dbg(&i915->drm, "%s returned due to iir=[0x%04x]\n", __func__, iir); + goto end; + } + + intel_pxp_mask_irq(gt, i915->pxp.handled_irr); + + i915->pxp.current_events |= events; + schedule_work(&i915->pxp.irq_work); +end: + return; +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h index 578f1126bada..620774fc32e2 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -8,14 +8,36 @@ #include +#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_sm_session_req { + /* Request KMD to allocate session id and move it to IN INIT */ + PXP_SM_REQ_SESSION_ID_INIT = 0x0, + /* Inform KMD that UMD has completed the initialization */ + PXP_SM_REQ_SESSION_IN_PLAY, + /* Request KMD to terminate the session */ + PXP_SM_REQ_SESSION_TERMINATE +}; + struct pxp_context; struct intel_pxp { + struct work_struct irq_work; + u32 handled_irr; + u32 current_events; + struct pxp_context *r0ctx; }; +struct intel_gt; struct drm_i915_private; +void intel_pxp_irq_handler(struct intel_gt *gt, u16 iir); +int i915_pxp_teardown_required_callback(struct drm_i915_private *i915); +int i915_pxp_global_terminate_complete_callback(struct drm_i915_private *i915); + int intel_pxp_init(struct drm_i915_private *i915); void intel_pxp_uninit(struct drm_i915_private *i915); From patchwork Sun Nov 15 20:23:23 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906789 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 A1D72C61DD8 for ; Sun, 15 Nov 2020 20:23:52 +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 676DF238E6 for ; Sun, 15 Nov 2020 20:23:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 676DF238E6 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 416C289F08; Sun, 15 Nov 2020 20:23:49 +0000 (UTC) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8FA3389F03 for ; Sun, 15 Nov 2020 20:23:48 +0000 (UTC) IronPort-SDR: CImiICrlNgoCzyIaepGitOzySNaQu3Vf1Wf7J2Qhb4cp/8xt3P4tycNGH03bQNUPEYDn2wbUEz qbZkHuq7Br2w== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="234832200" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="234832200" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:47 -0800 IronPort-SDR: N1WnUP5nr4tbgH2DnIF2ErE/ET0z27QquM6ddoW5iUnnjhiSj5aFAZJw2BcV8SBQ3PkKrAHICI kM0EiT+FwjWg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005339" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:23 -0800 Message-Id: <20201115202347.29224-3-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 03/27] drm/i915/pxp: Add PXP context for logical hardware states. 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" Add PXP context which represents combined view of driver and logical HW states. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/Makefile | 3 +- drivers/gpu/drm/i915/pxp/intel_pxp.c | 32 ++++++++++-- drivers/gpu/drm/i915/pxp/intel_pxp.h | 3 ++ drivers/gpu/drm/i915/pxp/intel_pxp_context.c | 51 ++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_context.h | 44 +++++++++++++++++ 5 files changed, 128 insertions(+), 5 deletions(-) create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_context.c create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_context.h diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 8274fea96009..831e8ad57560 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -256,7 +256,8 @@ i915-y += i915_perf.o # Protected execution platform (PXP) support i915-y += \ - pxp/intel_pxp.o + 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 diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index d98bff4a0fde..6d358f241406 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" static void intel_pxp_write_irq_mask_reg(struct drm_i915_private *i915, u32 mask) { @@ -32,14 +33,32 @@ static int intel_pxp_teardown_required_callback(struct drm_i915_private *i915) { drm_dbg(&i915->drm, "%s was called\n", __func__); + mutex_lock(&i915->pxp.r0ctx->ctx_mutex); + + i915->pxp.r0ctx->global_state_attacked = true; + i915->pxp.r0ctx->flag_display_hm_surface_keys = false; + + mutex_unlock(&i915->pxp.r0ctx->ctx_mutex); + return 0; } static int intel_pxp_global_terminate_complete_callback(struct drm_i915_private *i915) { + int ret = 0; + drm_dbg(&i915->drm, ">>> %s\n", __func__); - return 0; + mutex_lock(&i915->pxp.r0ctx->ctx_mutex); + + if (i915->pxp.r0ctx->global_state_attacked) + i915->pxp.r0ctx->global_state_attacked = false; + + mutex_unlock(&i915->pxp.r0ctx->ctx_mutex); + + drm_dbg(&i915->drm, "<<< %s ret=[%d]\n", __func__, ret); + + return ret; } static void intel_pxp_irq_work(struct work_struct *work) @@ -68,21 +87,26 @@ static void intel_pxp_irq_work(struct work_struct *work) int intel_pxp_init(struct drm_i915_private *i915) { - int ret; - drm_info(&i915->drm, "i915_pxp_init\n"); + i915->pxp.r0ctx = intel_pxp_create_r0ctx(i915); + if (!i915->pxp.r0ctx) { + drm_dbg(&i915->drm, "Failed to create pxp ctx\n"); + return -EFAULT; + } + INIT_WORK(&i915->pxp.irq_work, intel_pxp_irq_work); i915->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); - return ret; + return 0; } void intel_pxp_uninit(struct drm_i915_private *i915) { + intel_pxp_destroy_r0ctx(i915); } /** diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h index 620774fc32e2..4dec35bb834d 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -12,6 +12,9 @@ #define PXP_IRQ_VECTOR_DISPLAY_APP_TERM_PER_FW_REQ BIT(2) #define PXP_IRQ_VECTOR_PXP_DISP_STATE_RESET_COMPLETE BIT(3) +#define MAX_TYPE0_SESSIONS 16 +#define MAX_TYPE1_SESSIONS 6 + enum pxp_sm_session_req { /* Request KMD to allocate session id and move it to IN INIT */ PXP_SM_REQ_SESSION_ID_INIT = 0x0, 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..692370e758de --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_context.c @@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#include "intel_pxp_context.h" + +/** + * intel_pxp_create_ctx - To create a new pxp context. + * @i915: i915 device handle. + * + * Return: pointer to new_ctx, NULL for failure + */ +struct pxp_context *intel_pxp_create_r0ctx(struct drm_i915_private *i915) +{ + struct pxp_context *new_ctx = NULL; + + drm_dbg(&i915->drm, ">>> %s\n", __func__); + + new_ctx = kzalloc(sizeof(*new_ctx), GFP_KERNEL); + if (!new_ctx) { + drm_dbg(&i915->drm, "unable to allocate new pxp context!\n"); + return NULL; + } + + get_random_bytes(&new_ctx->r0ctx_id, sizeof(new_ctx->r0ctx_id)); + + new_ctx->global_state_attacked = false; + + mutex_init(&new_ctx->ctx_mutex); + + INIT_LIST_HEAD(&new_ctx->active_pxp_type0_sessions); + INIT_LIST_HEAD(&new_ctx->active_pxp_type1_sessions); + INIT_LIST_HEAD(&new_ctx->r3ctx_list); + + drm_dbg(&i915->drm, "<<< %s r0ctx_id=[0x%08x]\n", __func__, new_ctx->r0ctx_id); + + return new_ctx; +} + +/** + * intel_pxp_destroy_ctx - To destroy the pxp context. + * @i915: i915 device handle. + * + * Return: return 0 for success, failure otherwise. + */ +void intel_pxp_destroy_r0ctx(struct drm_i915_private *i915) +{ + kfree(i915->pxp.r0ctx); + i915->pxp.r0ctx = NULL; +} 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..5de4e68b9dce --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_context.h @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_CONTEXT_H__ +#define __INTEL_PXP_CONTEXT_H__ + +#include +#include "i915_drv.h" +#include "pxp/intel_pxp.h" + +/* struct pxp_context - Represents combined view of driver and logical HW states. */ +struct pxp_context { + /** @ctx_mutex: mutex to protect the ring0 pxp context */ + struct mutex ctx_mutex; + + struct list_head active_pxp_type0_sessions; + struct list_head active_pxp_type1_sessions; + + struct list_head r3ctx_list; + + u32 type0_session_pxp_tag[MAX_TYPE0_SESSIONS]; + u32 type1_session_pxp_tag[MAX_TYPE1_SESSIONS]; + + int r0ctx_id; + + bool global_state_attacked; + bool global_state_in_suspend; + bool flag_display_hm_surface_keys; +}; + +struct pxp_r3ctx { + /** @listhead: linked list infrastructure, do not change its order. */ + struct list_head listhead; + + /** @r3ctx: ring 3 context id */ + u32 r3ctx; +}; + +struct pxp_context *intel_pxp_create_r0ctx(struct drm_i915_private *i915); +void intel_pxp_destroy_r0ctx(struct drm_i915_private *i915); + +#endif /* __INTEL_PXP_CONTEXT_H__ */ From patchwork Sun Nov 15 20:23:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906825 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 1901BC2D0E4 for ; Sun, 15 Nov 2020 20:24:14 +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 D6263238E6 for ; Sun, 15 Nov 2020 20:24:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D6263238E6 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 53D2D6E9BE; Sun, 15 Nov 2020 20:24:13 +0000 (UTC) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id B512389F08 for ; Sun, 15 Nov 2020 20:23:48 +0000 (UTC) IronPort-SDR: 4ZK4DTrLHYINqiGOSBTJlotqGVw1SYgflCYSIwMebEnUhSWvqg+6WgGB9u8j1TfOelVjuEN4e0 lwyI+s/gs4ng== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="234832201" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="234832201" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:47 -0800 IronPort-SDR: MZUvp+Boa+A047Juds7SfsoDRdfl8eNawT4Zdd/nooR7cGyd5Wf6ZEYQZnS45JHTRaXhaMI8Ur 0orUjziqxAsQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005340" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:24 -0800 Message-Id: <20201115202347.29224-4-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 04/27] 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/Makefile | 1 + drivers/gpu/drm/i915/pxp/intel_pxp.c | 11 ++++++- drivers/gpu/drm/i915/pxp/intel_pxp_sm.c | 44 +++++++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_sm.h | 19 +++++++++++ 4 files changed, 74 insertions(+), 1 deletion(-) create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_sm.c create mode 100644 drivers/gpu/drm/i915/pxp/intel_pxp_sm.h diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 831e8ad57560..81432a9f44d6 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -258,6 +258,7 @@ i915-y += i915_perf.o i915-y += \ pxp/intel_pxp.o \ pxp/intel_pxp_context.o \ + pxp/intel_pxp_sm.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/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index 6d358f241406..3a24c2b13b14 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -6,6 +6,7 @@ #include "i915_drv.h" #include "intel_pxp.h" #include "intel_pxp_context.h" +#include "intel_pxp_sm.h" static void intel_pxp_write_irq_mask_reg(struct drm_i915_private *i915, u32 mask) { @@ -87,6 +88,8 @@ static void intel_pxp_irq_work(struct work_struct *work) int intel_pxp_init(struct drm_i915_private *i915) { + int ret; + drm_info(&i915->drm, "i915_pxp_init\n"); i915->pxp.r0ctx = intel_pxp_create_r0ctx(i915); @@ -95,13 +98,19 @@ int intel_pxp_init(struct drm_i915_private *i915) return -EFAULT; } + ret = pxp_sm_set_kcr_init_reg(i915); + if (ret) { + drm_dbg(&i915->drm, "Failed to set kcr init reg\n"); + return ret; + } + INIT_WORK(&i915->pxp.irq_work, intel_pxp_irq_work); i915->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); - return 0; + return ret; } void intel_pxp_uninit(struct drm_i915_private *i915) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c new file mode 100644 index 000000000000..763d194c5f4c --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c @@ -0,0 +1,44 @@ +/* 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.h" +#include "intel_pxp_sm.h" +#include "intel_pxp_context.h" + +static int pxp_reg_write(struct drm_i915_private *i915, u32 offset, u32 regval) +{ + intel_wakeref_t wakeref; + + if (!i915) + return -EINVAL; + + with_intel_runtime_pm(&i915->runtime_pm, wakeref) { + i915_reg_t reg_offset = {offset}; + + intel_uncore_write(&i915->uncore, reg_offset, regval); + } + + return 0; +} + +int pxp_sm_set_kcr_init_reg(struct drm_i915_private *i915) +{ + int ret; + + drm_dbg(&i915->drm, ">>> %s\n", __func__); + + ret = pxp_reg_write(i915, KCR_INIT.reg, KCR_INIT_ALLOW_DISPLAY_ME_WRITES); + if (ret) { + drm_dbg(&i915->drm, "Failed to write()\n"); + goto end; + } + +end: + drm_dbg(&i915->drm, "<<< %s ret=[%d]\n", __func__, ret); + return ret; +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h new file mode 100644 index 000000000000..59ce2394b590 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_SM_H__ +#define __INTEL_PXP_SM_H__ + +#include "i915_reg.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)) + +int pxp_sm_set_kcr_init_reg(struct drm_i915_private *i915); + +#endif /* __INTEL_PXP_SM_H__ */ From patchwork Sun Nov 15 20:23:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906835 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=-9.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY,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 95B25C6369E for ; Sun, 15 Nov 2020 20:24:17 +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 635D6238E6 for ; Sun, 15 Nov 2020 20:24:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 635D6238E6 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 0CD526E9C3; Sun, 15 Nov 2020 20:24:16 +0000 (UTC) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id D31FF89F03 for ; Sun, 15 Nov 2020 20:23:48 +0000 (UTC) IronPort-SDR: A/ZBCrvwUo57xEau35XAvBYgh1sfhtvGYWRdrOlggeplUIFvmnW7Tx1iVgeJLpJgBkbnD/tBbP yBq1QwDR5lmQ== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="234832202" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="234832202" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:47 -0800 IronPort-SDR: Q+eEv/oEHrB5KJnFGCWVDVFa1ewiDoKz+7D6dQh5xOcJ0OeQeQSN1w36ywgbXxrYof+edHuwFX Nqih6uoLNvwg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005341" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:25 -0800 Message-Id: <20201115202347.29224-5-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 05/27] drm/i915/pxp: Enable ioctl action to set the ring3 context 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" Enable one ioctl action to allow ring3 driver to set its ring3 context, so ring0 PXP can track the context id through this ring3 context list. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/i915_drv.c | 1 + drivers/gpu/drm/i915/pxp/intel_pxp.c | 59 ++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp.h | 16 ++++++ drivers/gpu/drm/i915/pxp/intel_pxp_context.c | 34 +++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_context.h | 3 + include/uapi/drm/i915_drm.h | 2 + 6 files changed, 115 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index c8b9c42fcbd6..43ea85b5f14b 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -1761,6 +1761,7 @@ static const struct drm_ioctl_desc i915_ioctls[] = { DRM_IOCTL_DEF_DRV(I915_QUERY, i915_query_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_VM_CREATE, i915_gem_vm_create_ioctl, DRM_RENDER_ALLOW), DRM_IOCTL_DEF_DRV(I915_GEM_VM_DESTROY, i915_gem_vm_destroy_ioctl, DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(I915_PXP_OPS, i915_pxp_ops_ioctl, DRM_RENDER_ALLOW), }; static const struct drm_driver driver = { diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index 3a24c2b13b14..8fa88ea17bc0 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -8,6 +8,63 @@ #include "intel_pxp_context.h" #include "intel_pxp_sm.h" +int i915_pxp_ops_ioctl(struct drm_device *dev, void *data, struct drm_file *drmfile) +{ + int ret; + struct pxp_info pxp_info = {0}; + struct drm_i915_pxp_ops *pxp_ops = data; + struct drm_i915_private *i915 = to_i915(dev); + + if (!i915 || !drmfile || !pxp_ops || pxp_ops->pxp_info_size != sizeof(pxp_info)) + return -EINVAL; + + if (copy_from_user(&pxp_info, u64_to_user_ptr(pxp_ops->pxp_info_ptr), sizeof(pxp_info)) != 0) + return -EFAULT; + + drm_dbg(&i915->drm, "i915 pxp ioctl call with action=[%d]\n", pxp_info.action); + + mutex_lock(&i915->pxp.r0ctx->ctx_mutex); + + if (i915->pxp.r0ctx->global_state_in_suspend) { + drm_dbg(&i915->drm, "Return failure due to state in suspend\n"); + pxp_info.sm_status = PXP_SM_STATUS_SESSION_NOT_AVAILABLE; + ret = 0; + goto end; + } + + if (i915->pxp.r0ctx->global_state_attacked) { + drm_dbg(&i915->drm, "Retry required due to state attacked\n"); + pxp_info.sm_status = PXP_SM_STATUS_RETRY_REQUIRED; + ret = 0; + goto end; + } + + switch (pxp_info.action) { + case PXP_ACTION_SET_R3_CONTEXT: + { + ret = intel_pxp_set_r3ctx(i915, pxp_info.set_r3ctx); + break; + } + default: + drm_dbg(&i915->drm, "Failed to %s due to bad params\n", __func__); + ret = -EINVAL; + goto end; + } + +end: + mutex_unlock(&i915->pxp.r0ctx->ctx_mutex); + + if (ret == 0) + if (copy_to_user(u64_to_user_ptr(pxp_ops->pxp_info_ptr), &pxp_info, sizeof(pxp_info)) != 0) + ret = -EFAULT; + + if (ret) + dev_err(&dev->pdev->dev, "pid=%d, ret = %d\n", task_pid_nr(current), ret); + + drm_dbg(&i915->drm, "<<< %s\n", __func__); + return ret; +} + static void intel_pxp_write_irq_mask_reg(struct drm_i915_private *i915, u32 mask) { WARN_ON(INTEL_GEN(i915) < 11); @@ -39,6 +96,8 @@ static int intel_pxp_teardown_required_callback(struct drm_i915_private *i915) i915->pxp.r0ctx->global_state_attacked = true; i915->pxp.r0ctx->flag_display_hm_surface_keys = false; + intel_pxp_destroy_r3ctx_list(i915); + mutex_unlock(&i915->pxp.r0ctx->ctx_mutex); return 0; diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h index 4dec35bb834d..21a6964fc64e 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -24,6 +24,21 @@ enum pxp_sm_session_req { PXP_SM_REQ_SESSION_TERMINATE }; +#define PXP_ACTION_SET_R3_CONTEXT 5 + +enum pxp_sm_status { + PXP_SM_STATUS_SUCCESS, + PXP_SM_STATUS_RETRY_REQUIRED, + PXP_SM_STATUS_SESSION_NOT_AVAILABLE, + PXP_SM_STATUS_ERROR_UNKNOWN +}; + +struct pxp_info { + u32 action; + u32 sm_status; + u32 set_r3ctx; +} __packed; + struct pxp_context; struct intel_pxp { @@ -37,6 +52,7 @@ struct intel_pxp { struct intel_gt; struct drm_i915_private; +int i915_pxp_ops_ioctl(struct drm_device *dev, void *data, struct drm_file *drmfile); void intel_pxp_irq_handler(struct intel_gt *gt, u16 iir); int i915_pxp_teardown_required_callback(struct drm_i915_private *i915); int i915_pxp_global_terminate_complete_callback(struct drm_i915_private *i915); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_context.c b/drivers/gpu/drm/i915/pxp/intel_pxp_context.c index 692370e758de..b6339720614e 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_context.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_context.c @@ -49,3 +49,37 @@ void intel_pxp_destroy_r0ctx(struct drm_i915_private *i915) kfree(i915->pxp.r0ctx); i915->pxp.r0ctx = NULL; } + +int intel_pxp_set_r3ctx(struct drm_i915_private *i915, u32 r3ctx_in) +{ + struct pxp_r3ctx *r3ctx; + + drm_dbg(&i915->drm, ">>> %s u3ctx_in=[%d]\n", __func__, r3ctx_in); + + r3ctx = kzalloc(sizeof(*r3ctx), GFP_KERNEL); + if (!r3ctx) { + drm_dbg(&i915->drm, "Failed to kzalloc()\n"); + return -ENOMEM; + } + + r3ctx->r3ctx = r3ctx_in; + + list_add(&r3ctx->listhead, &i915->pxp.r0ctx->r3ctx_list); + return 0; +} + +void intel_pxp_destroy_r3ctx_list(struct drm_i915_private *i915) +{ + struct pxp_r3ctx *r3ctx, *n; + + drm_dbg(&i915->drm, ">>> %s\n", __func__); + + list_for_each_entry_safe(r3ctx, n, &i915->pxp.r0ctx->r3ctx_list, listhead) { + drm_dbg(&i915->drm, "Destroy r3ctx_list u3ctx->r3ctx=[%d]\n", r3ctx->r3ctx); + + list_del(&r3ctx->listhead); + kfree(r3ctx); + } + + drm_dbg(&i915->drm, "<<< %s\n", __func__); +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_context.h b/drivers/gpu/drm/i915/pxp/intel_pxp_context.h index 5de4e68b9dce..e4a0388a2f57 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_context.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_context.h @@ -41,4 +41,7 @@ struct pxp_r3ctx { struct pxp_context *intel_pxp_create_r0ctx(struct drm_i915_private *i915); void intel_pxp_destroy_r0ctx(struct drm_i915_private *i915); +int intel_pxp_set_r3ctx(struct drm_i915_private *i915, u32 r3ctx); +void intel_pxp_destroy_r3ctx_list(struct drm_i915_private *i915); + #endif /* __INTEL_PXP_CONTEXT_H__ */ diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index dc101264176b..180f97fd91dc 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -359,6 +359,7 @@ typedef struct _drm_i915_sarea { #define DRM_I915_QUERY 0x39 #define DRM_I915_GEM_VM_CREATE 0x3a #define DRM_I915_GEM_VM_DESTROY 0x3b +#define DRM_I915_PXP_OPS 0x3c /* Must be kept compact -- no holes */ #define DRM_IOCTL_I915_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t) @@ -422,6 +423,7 @@ typedef struct _drm_i915_sarea { #define DRM_IOCTL_I915_QUERY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_QUERY, struct drm_i915_query) #define DRM_IOCTL_I915_GEM_VM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_VM_CREATE, struct drm_i915_gem_vm_control) #define DRM_IOCTL_I915_GEM_VM_DESTROY DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_VM_DESTROY, struct drm_i915_gem_vm_control) +#define DRM_IOCTL_I915_PXP_OPS DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_PXP_OPS, struct drm_i915_pxp_ops) /* Allow drivers to submit batchbuffers directly to hardware, relying * on the security mechanisms provided by hardware. From patchwork Sun Nov 15 20:23:26 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906803 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 8158AC61DD8 for ; Sun, 15 Nov 2020 20:24:06 +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 47EF8238E6 for ; Sun, 15 Nov 2020 20:24:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 47EF8238E6 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 836FC6E9B5; Sun, 15 Nov 2020 20:24:02 +0000 (UTC) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 04C3B89F08 for ; Sun, 15 Nov 2020 20:23:48 +0000 (UTC) IronPort-SDR: 3XSsadTPT8zKENIDp4z8cPazGmSJBUxhZeROnq3dJ1wzlB1eyXBIjpqZJJsKkS60ayRru44WSb +niXgPwB6TwA== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="234832203" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="234832203" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:47 -0800 IronPort-SDR: avK3Ea5x5G2ZIkPuc68HxWivonFGwQx7EFkQ8xznOBlJDJ2nz8MiD0hUc50OXmn0C74dnaR2s+ 9MvIOGzZvfiA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005342" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:26 -0800 Message-Id: <20201115202347.29224-6-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 06/27] drm/i915: Rename the whitelist to allowlist 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" Rename the whitelist to allowlist as suggested Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/intel_uncore.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index 1c14a07eba7d..c9ef0025c60e 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -1989,12 +1989,12 @@ void intel_uncore_fini_mmio(struct intel_uncore *uncore) uncore_mmio_cleanup(uncore); } -static const struct reg_whitelist { +static const struct reg_allowlist { i915_reg_t offset_ldw; i915_reg_t offset_udw; u16 gen_mask; u8 size; -} reg_read_whitelist[] = { { +} reg_read_allowlist[] = { { .offset_ldw = RING_TIMESTAMP(RENDER_RING_BASE), .offset_udw = RING_TIMESTAMP_UDW(RENDER_RING_BASE), .gen_mask = INTEL_GEN_MASK(4, 12), @@ -2007,14 +2007,14 @@ int i915_reg_read_ioctl(struct drm_device *dev, struct drm_i915_private *i915 = to_i915(dev); struct intel_uncore *uncore = &i915->uncore; struct drm_i915_reg_read *reg = data; - struct reg_whitelist const *entry; + struct reg_allowlist const *entry; intel_wakeref_t wakeref; unsigned int flags; int remain; int ret = 0; - entry = reg_read_whitelist; - remain = ARRAY_SIZE(reg_read_whitelist); + entry = reg_read_allowlist; + remain = ARRAY_SIZE(reg_read_allowlist); while (remain) { u32 entry_offset = i915_mmio_reg_offset(entry->offset_ldw); From patchwork Sun Nov 15 20:23:27 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906797 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 DB7BAC2D0E4 for ; Sun, 15 Nov 2020 20:24:01 +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 A07A7238E6 for ; Sun, 15 Nov 2020 20:24:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A07A7238E6 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 463E589FA5; Sun, 15 Nov 2020 20:23:53 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7C5C189F08 for ; Sun, 15 Nov 2020 20:23:48 +0000 (UTC) IronPort-SDR: xGpkpHg60LMvHrwK4rjjmHNk/RaKV4X4krSITv62SeODWQBjYEFIPWdBedz1FLFDlOPPtjNqog vmBgVqCCxizg== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="167165303" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="167165303" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:48 -0800 IronPort-SDR: svyXYghFq60nDt+JpqFersPlXOFcFCjB3+PDruqTO9/WWZTT8H3j0iZ76kK2TU/49ItoAuJ7A9 qx5gdq5QTP4g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005343" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:27 -0800 Message-Id: <20201115202347.29224-7-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 07/27] drm/i915/pxp: Add PXP-related registers into allowlist 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" Add several PXP-related reg into allowlist to allow ring3 driver to read the those register values. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/i915_reg.h | 8 ++++ drivers/gpu/drm/i915/intel_uncore.c | 57 +++++++++++++++++++++-------- 2 files changed, 50 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index faf6b06145fa..5c51c9df8b28 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -12419,4 +12419,12 @@ enum skl_power_gate { #define TGL_ROOT_DEVICE_SKU_ULX 0x2 #define TGL_ROOT_DEVICE_SKU_ULT 0x4 +/* Registers for passlist check */ +#define PXP_REG_01_LOWERBOUND _MMIO(0x32260) +#define PXP_REG_01_UPPERBOUND _MMIO(0x32268) +#define PXP_REG_02_LOWERBOUND _MMIO(0x32670) +#define PXP_REG_02_UPPERBOUND _MMIO(0x32678) +#define PXP_REG_03_LOWERBOUND _MMIO(0x32860) +#define PXP_REG_03_UPPERBOUND _MMIO(0x32c7c) + #endif /* _I915_REG_H_ */ diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index c9ef0025c60e..670856e095c4 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -1990,16 +1990,41 @@ void intel_uncore_fini_mmio(struct intel_uncore *uncore) } static const struct reg_allowlist { - i915_reg_t offset_ldw; + i915_reg_t offset_ldw_lowerbound; + i915_reg_t offset_ldw_upperbound; i915_reg_t offset_udw; u16 gen_mask; u8 size; -} reg_read_allowlist[] = { { - .offset_ldw = RING_TIMESTAMP(RENDER_RING_BASE), +} reg_read_allowlist[] = { + { + .offset_ldw_lowerbound = RING_TIMESTAMP(RENDER_RING_BASE), + .offset_ldw_upperbound = RING_TIMESTAMP(RENDER_RING_BASE), .offset_udw = RING_TIMESTAMP_UDW(RENDER_RING_BASE), .gen_mask = INTEL_GEN_MASK(4, 12), .size = 8 -} }; + }, + { + .offset_ldw_lowerbound = PXP_REG_01_LOWERBOUND, + .offset_ldw_upperbound = PXP_REG_01_UPPERBOUND, + .offset_udw = {0}, + .gen_mask = INTEL_GEN_MASK(4, 12), + .size = 4 + }, + { + .offset_ldw_lowerbound = PXP_REG_02_LOWERBOUND, + .offset_ldw_upperbound = PXP_REG_02_UPPERBOUND, + .offset_udw = {0}, + .gen_mask = INTEL_GEN_MASK(4, 12), + .size = 4 + }, + { + .offset_ldw_lowerbound = PXP_REG_03_LOWERBOUND, + .offset_ldw_upperbound = PXP_REG_03_UPPERBOUND, + .offset_udw = {0}, + .gen_mask = INTEL_GEN_MASK(4, 12), + .size = 4 + } +}; int i915_reg_read_ioctl(struct drm_device *dev, void *data, struct drm_file *file) @@ -2012,18 +2037,22 @@ int i915_reg_read_ioctl(struct drm_device *dev, unsigned int flags; int remain; int ret = 0; + i915_reg_t offset_ldw; entry = reg_read_allowlist; remain = ARRAY_SIZE(reg_read_allowlist); while (remain) { - u32 entry_offset = i915_mmio_reg_offset(entry->offset_ldw); + u32 entry_offset_lb = i915_mmio_reg_offset(entry->offset_ldw_lowerbound); + u32 entry_offset_ub = i915_mmio_reg_offset(entry->offset_ldw_upperbound); GEM_BUG_ON(!is_power_of_2(entry->size)); GEM_BUG_ON(entry->size > 8); - GEM_BUG_ON(entry_offset & (entry->size - 1)); + GEM_BUG_ON(entry_offset_lb & (entry->size - 1)); + GEM_BUG_ON(entry_offset_ub & (entry->size - 1)); if (INTEL_INFO(i915)->gen_mask & entry->gen_mask && - entry_offset == (reg->offset & -entry->size)) + entry_offset_lb <= (reg->offset & -entry->size) && + (reg->offset & -entry->size) <= entry_offset_ub) break; entry++; remain--; @@ -2033,23 +2062,21 @@ int i915_reg_read_ioctl(struct drm_device *dev, return -EINVAL; flags = reg->offset & (entry->size - 1); + offset_ldw = _MMIO(reg->offset - flags); with_intel_runtime_pm(&i915->runtime_pm, wakeref) { if (entry->size == 8 && flags == I915_REG_READ_8B_WA) reg->val = intel_uncore_read64_2x32(uncore, - entry->offset_ldw, + offset_ldw, entry->offset_udw); else if (entry->size == 8 && flags == 0) - reg->val = intel_uncore_read64(uncore, - entry->offset_ldw); + reg->val = intel_uncore_read64(uncore, offset_ldw); else if (entry->size == 4 && flags == 0) - reg->val = intel_uncore_read(uncore, entry->offset_ldw); + reg->val = intel_uncore_read(uncore, offset_ldw); else if (entry->size == 2 && flags == 0) - reg->val = intel_uncore_read16(uncore, - entry->offset_ldw); + reg->val = intel_uncore_read16(uncore, offset_ldw); else if (entry->size == 1 && flags == 0) - reg->val = intel_uncore_read8(uncore, - entry->offset_ldw); + reg->val = intel_uncore_read8(uncore, offset_ldw); else ret = -EINVAL; } From patchwork Sun Nov 15 20:23:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906821 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 DA66EC63699 for ; Sun, 15 Nov 2020 20:24:10 +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 A6B28238E6 for ; Sun, 15 Nov 2020 20:24:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A6B28238E6 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 139AC6E9BB; Sun, 15 Nov 2020 20:24:03 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id ACD0389F07 for ; Sun, 15 Nov 2020 20:23:48 +0000 (UTC) IronPort-SDR: ovFymw3eYN6J4Ahauvgd+rGNfGxnmUQYmWpbhVugi/3TKb1XfNYUALSvwHiwm5q9nXnVaDNogs QUa5aLZwO0eQ== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="167165304" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="167165304" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:48 -0800 IronPort-SDR: qp7/ewbRUkoygr8XadiDyd+FkLCKxkaa7quyDREK/MYDl5qYjiAUZVxN5qvxrEqXU00TKhaixk yhC8U9k8y9gA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005344" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:28 -0800 Message-Id: <20201115202347.29224-8-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 08/27] drm/i915/pxp: Read register to check hardware session state 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 check the hardware protected session state via reading the hardware register session in play. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/pxp/intel_pxp.h | 3 + drivers/gpu/drm/i915/pxp/intel_pxp_sm.c | 176 ++++++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_sm.h | 51 +++++++ 3 files changed, 230 insertions(+) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h index 21a6964fc64e..95d3deba7ade 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -12,6 +12,9 @@ #define PXP_IRQ_VECTOR_DISPLAY_APP_TERM_PER_FW_REQ BIT(2) #define PXP_IRQ_VECTOR_PXP_DISP_STATE_RESET_COMPLETE BIT(3) +#define pxp_session_list(i915, session_type) (((session_type) == SESSION_TYPE_TYPE0) ? \ + &(i915)->pxp.r0ctx->active_pxp_type0_sessions : &(i915)->pxp.r0ctx->active_pxp_type1_sessions) + #define MAX_TYPE0_SESSIONS 16 #define MAX_TYPE1_SESSIONS 6 diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c index 763d194c5f4c..68d421976e33 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c @@ -10,6 +10,21 @@ #include "intel_pxp_sm.h" #include "intel_pxp_context.h" +static int pxp_sm_reg_read(struct drm_i915_private *i915, u32 offset, u32 *regval) +{ + intel_wakeref_t wakeref; + + if (!i915 || !regval) + return -EINVAL; + + with_intel_runtime_pm(&i915->runtime_pm, wakeref) { + i915_reg_t reg_offset = {offset}; + *regval = intel_uncore_read(&i915->uncore, reg_offset); + } + + return 0; +} + static int pxp_reg_write(struct drm_i915_private *i915, u32 offset, u32 regval) { intel_wakeref_t wakeref; @@ -26,6 +41,167 @@ static int pxp_reg_write(struct drm_i915_private *i915, u32 offset, u32 regval) return 0; } +/** + * is_sw_session_active - Check if the given sw session id is active. + * @i915: i915 device handle. + * @session_type: Specified session type + * @session_index: Numeric session identifier. + * @is_in_play: Set false to return true if the specified session is active. + * Set true to also check if the session is active and in_play. + * @protection_mode: get the protection mode of specified session. + * + * The caller needs to use ctx_mutex lock to protect the session_list + * inside this function. + * + * Return : true if session with the same identifier is active (and in_play). + */ +static bool is_sw_session_active(struct drm_i915_private *i915, int session_type, + int session_index, bool is_in_play, int *protection_mode) +{ + struct pxp_protected_session *current_session; + + lockdep_assert_held(&i915->pxp.r0ctx->ctx_mutex); + + list_for_each_entry(current_session, pxp_session_list(i915, session_type), session_list) { + if (current_session->session_index == session_index) { + if (protection_mode) + *protection_mode = current_session->protection_mode; + + if (is_in_play && !current_session->session_is_in_play) + return false; + + return true; + } + } + + /* session id not found. return false */ + return false; +} + +static bool is_hw_type0_session_in_play(struct drm_i915_private *i915, int session_index) +{ + u32 regval_sip = 0; + u32 reg_session_id_mask; + bool hw_session_is_in_play = false; + int ret = 0; + + if (!i915 || session_index < 0 || session_index >= MAX_TYPE0_SESSIONS) + goto end; + + ret = pxp_sm_reg_read(i915, GEN12_KCR_SIP.reg, ®val_sip); + if (ret) { + drm_dbg(&i915->drm, "Failed to read()\n"); + goto end; + } + + reg_session_id_mask = (1 << session_index); + hw_session_is_in_play = (bool)(regval_sip & reg_session_id_mask); +end: + return hw_session_is_in_play; +} + +static bool is_hw_type1_session_in_play(struct drm_i915_private *i915, int session_index) +{ + int ret = 0; + u32 regval_tsip_low = 0; + u32 regval_tsip_high = 0; + u64 reg_session_id_mask; + u64 regval_tsip; + bool hw_session_is_in_play = false; + + if (!i915 || session_index < 0 || session_index >= MAX_TYPE1_SESSIONS) + goto end; + + ret = pxp_sm_reg_read(i915, GEN12_KCR_TSIP_LOW.reg, ®val_tsip_low); + if (ret) { + drm_dbg(&i915->drm, "Failed to pxp_sm_reg_read()\n"); + goto end; + } + + ret = pxp_sm_reg_read(i915, GEN12_KCR_TSIP_HIGH.reg, ®val_tsip_high); + if (ret) { + drm_dbg(&i915->drm, "Failed to pxp_sm_reg_read()\n"); + goto end; + } + + reg_session_id_mask = (1 << session_index); + regval_tsip = ((u64)regval_tsip_high << 32) | regval_tsip_low; + hw_session_is_in_play = (bool)(regval_tsip & reg_session_id_mask); +end: + return hw_session_is_in_play; +} + +static bool is_hw_session_in_play(struct drm_i915_private *i915, + int session_type, int session_index) +{ + bool is_in_play = false; + + if (session_type == SESSION_TYPE_TYPE0) + is_in_play = is_hw_type0_session_in_play(i915, session_index); + else if (session_type == SESSION_TYPE_TYPE1) + is_in_play = is_hw_type1_session_in_play(i915, session_index); + else + drm_dbg(&i915->drm, "Failed to %s invalid session_type=[%d]\n", __func__, session_type); + + return is_in_play; +} + +/* check hw session in play reg if match the current sw state */ +static int sync_hw_sw_state(struct drm_i915_private *i915, int session_index, int session_type) +{ + const int max_retry = 10; + const int ms_delay = 10; + int retry = 0; + int ret; + + if (!i915 || session_type >= SESSION_TYPE_MAX) + return -EINVAL; + + ret = -EINVAL; + for (retry = 0; retry < max_retry; retry++) { + if (is_hw_session_in_play(i915, session_type, session_index) == + is_sw_session_active(i915, session_type, session_index, true, NULL)) { + ret = 0; + break; + } + + msleep(ms_delay); + } + + return ret; +} + +/** + * check_if_protected_type0_sessions_are_attacked - To check if type0 active sessions are attacked. + * @i915: i915 device handle. + * + * Return: true if HW shows protected sessions are attacked, false otherwise. + */ +static bool check_if_protected_type0_sessions_are_attacked(struct drm_i915_private *i915) +{ + i915_reg_t kcr_status_reg = KCR_STATUS_1; + u32 reg_value = 0; + u32 mask = 0x80000000; + int ret; + + if (!i915) + return false; + + if (i915->pxp.r0ctx->global_state_attacked) + return true; + + ret = pxp_sm_reg_read(i915, kcr_status_reg.reg, ®_value); + if (ret) { + drm_dbg(&i915->drm, "Failed to pxp_sm_reg_read\n"); + goto end; + } + + if (reg_value & mask) + return true; +end: + return false; +} + int pxp_sm_set_kcr_init_reg(struct drm_i915_private *i915) { int ret; diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h index 59ce2394b590..a3149c18c831 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h @@ -14,6 +14,57 @@ /* Setting KCR Init bit is required after system boot */ #define KCR_INIT_ALLOW_DISPLAY_ME_WRITES (BIT(14) | (BIT(14) << KCR_INIT_MASK_SHIFT)) +#define KCR_STATUS_1 _MMIO(0x320f4) +#define GEN12_KCR_SIP _MMIO(0x32260) /* KCR type0 session in play 0-31 */ +#define GEN12_KCR_TSIP_LOW _MMIO(0x32264) /* KCR type1 session in play 0-31 */ +#define GEN12_KCR_TSIP_HIGH _MMIO(0x32268) /* KCR type1 session in play 32-63 */ + +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 +}; + +/** + * struct pxp_protected_session - linked list to track all active sessions. + */ +struct pxp_protected_session { + /** @session_list: linked list infrastructure, do not change its order. */ + struct list_head session_list; + + /** @session_index: Numeric identifier for this protected session */ + int session_index; + /** @session_type: Type of session */ + int session_type; + /** @protection_mode: mode of protection requested */ + int protection_mode; + /** @context_id: context identifier of the protected session requestor */ + int context_id; + /** @pid: pid of this session's creator */ + int pid; + /** @drmfile: pointer to drm_file, which is allocated on device file open() call */ + struct drm_file *drmfile; + + /** + * @session_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 session_is_in_play; +}; + int pxp_sm_set_kcr_init_reg(struct drm_i915_private *i915); #endif /* __INTEL_PXP_SM_H__ */ From patchwork Sun Nov 15 20:23:29 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906815 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 A77F8C61DD8 for ; Sun, 15 Nov 2020 20:24:08 +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 736D3238E6 for ; 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15 Nov 2020 12:23:48 -0800 IronPort-SDR: 3Xfa1xLXPSGNdET0CmNPwNRdEALofjbNSoDBy+BRRTvKiI6QejC4hGrRStGZqM2nByaPPdwKRJ dzLQ/2psRhqw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005345" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:29 -0800 Message-Id: <20201115202347.29224-9-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 09/27] drm/i915/pxp: Implement funcs to get/set PXP tag 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 get/set the PXP tag, which is 32-bit bitwise value containing the hardware session info, such as its session id, protection mode or whether it's enabled. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/pxp/intel_pxp_sm.c | 105 ++++++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_sm.h | 18 ++++ 2 files changed, 123 insertions(+) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c index 68d421976e33..f3223c9f71c7 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c @@ -41,6 +41,16 @@ static int pxp_reg_write(struct drm_i915_private *i915, u32 offset, u32 regval) return 0; } +static u8 pxp_get_session_id(int session_index, int session_type) +{ + u8 session_id = session_index & SESSION_ID_MASK; + + if (session_type == SESSION_TYPE_TYPE1) + session_id |= SESSION_TYPE_MASK; + + return session_id; +} + /** * is_sw_session_active - Check if the given sw session id is active. * @i915: i915 device handle. @@ -78,6 +88,101 @@ static bool is_sw_session_active(struct drm_i915_private *i915, int session_type return false; } +static int pxp_set_pxp_tag(struct drm_i915_private *i915, int session_type, + int session_idx, int protection_mode) +{ + struct pxp_tag *pxp_tag; + int ret; + + if (!i915 || session_type >= SESSION_TYPE_MAX) { + ret = -EINVAL; + drm_dbg(&i915->drm, "Failed to %s, bad params\n", __func__); + goto end; + } + + if (session_type == SESSION_TYPE_TYPE0 && session_idx < MAX_TYPE0_SESSIONS) { + pxp_tag = (struct pxp_tag *)&i915->pxp.r0ctx->type0_session_pxp_tag[session_idx]; + } else if (session_type == SESSION_TYPE_TYPE1 && session_idx < MAX_TYPE1_SESSIONS) { + pxp_tag = (struct pxp_tag *)&i915->pxp.r0ctx->type1_session_pxp_tag[session_idx]; + } else { + ret = -EINVAL; + drm_dbg(&i915->drm, "Failed to %s, bad params session_type=[%d], session_idx=[%d]\n", + __func__, session_type, session_idx); + goto end; + } + + switch (protection_mode) { + case PROTECTION_MODE_NONE: + { + pxp_tag->enable = false; + pxp_tag->hm = false; + pxp_tag->sm = false; + break; + } + case PROTECTION_MODE_LM: + { + pxp_tag->enable = true; + pxp_tag->hm = false; + pxp_tag->sm = false; + pxp_tag->instance_id++; + break; + } + case PROTECTION_MODE_HM: + { + pxp_tag->enable = true; + pxp_tag->hm = true; + pxp_tag->sm = false; + pxp_tag->instance_id++; + break; + } + case PROTECTION_MODE_SM: + { + pxp_tag->enable = true; + pxp_tag->hm = true; + pxp_tag->sm = true; + pxp_tag->instance_id++; + break; + } + default: + ret = -EINVAL; + drm_dbg(&i915->drm, "Failed to %s, bad params protection_mode=[%d]\n", + __func__, protection_mode); + goto end; + } + + pxp_tag->session_id = pxp_get_session_id(session_idx, session_type); + + ret = 0; +end: + return ret; +} + +u32 intel_pxp_get_pxp_tag(struct drm_i915_private *i915, int session_idx, + int session_type, u32 *session_is_alive) +{ + struct pxp_tag *pxp_tag; + + if (!i915 || session_type >= SESSION_TYPE_MAX) { + drm_dbg(&i915->drm, "Failed to %s, bad params\n", __func__); + return -EINVAL; + } + + if (session_type == SESSION_TYPE_TYPE0 && session_idx < MAX_TYPE0_SESSIONS) { + pxp_tag = (struct pxp_tag *)&i915->pxp.r0ctx->type0_session_pxp_tag[session_idx]; + } else if (session_type == SESSION_TYPE_TYPE1 && session_idx < MAX_TYPE1_SESSIONS) { + pxp_tag = (struct pxp_tag *)&i915->pxp.r0ctx->type1_session_pxp_tag[session_idx]; + } else { + drm_dbg(&i915->drm, "Failed to %s, bad params session_type=[%d], session_idx=[%d]\n", + __func__, session_type, session_idx); + return -EINVAL; + } + + if (session_is_alive) + *session_is_alive = pxp_tag->enable; + + return pxp_tag->value; +} + static bool is_hw_type0_session_in_play(struct drm_i915_private *i915, int session_index) { u32 regval_sip = 0; diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h index a3149c18c831..c1f6b1be3fd1 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h @@ -19,6 +19,9 @@ #define GEN12_KCR_TSIP_LOW _MMIO(0x32264) /* KCR type1 session in play 0-31 */ #define GEN12_KCR_TSIP_HIGH _MMIO(0x32268) /* KCR type1 session in play 32-63 */ +#define SESSION_TYPE_MASK BIT(7) +#define SESSION_ID_MASK (BIT(7) - 1) + enum pxp_session_types { SESSION_TYPE_TYPE0 = 0, SESSION_TYPE_TYPE1 = 1, @@ -35,6 +38,21 @@ enum pxp_protection_modes { PROTECTION_MODE_ALL }; +struct pxp_tag { + union { + u32 value; + struct { + u32 session_id : 8; + u32 instance_id : 8; + u32 enable : 1; + u32 hm : 1; + u32 reserved_1 : 1; + u32 sm : 1; + u32 reserved_2 : 12; + }; + }; +}; + /** * struct pxp_protected_session - linked list to track all active sessions. */ From patchwork Sun Nov 15 20:23:30 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906801 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 AA2F8C61DD8 for ; Sun, 15 Nov 2020 20:24:02 +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 70CEB238E6 for ; Sun, 15 Nov 2020 20:24:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 70CEB238E6 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 5A5FF89FAC; Sun, 15 Nov 2020 20:23:53 +0000 (UTC) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1EAA389F03 for ; Sun, 15 Nov 2020 20:23:49 +0000 (UTC) IronPort-SDR: 2qc4ZB/cm2LBo8gT7o1317JjMbXBkMEVmllxaP1nsE9Uws8n3my48hDyXmwZvKwbD3DZk3CUmb gRQ8In3VfT1A== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="234832204" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="234832204" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:48 -0800 IronPort-SDR: SiSgjhELpHCCdvYp6K0opNczlWFwrquS1ysfrAmFgV+Ewyzmua8wsEYrxOWgncBT91AgbyLdUH dEuHURVn35AQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005346" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:30 -0800 Message-Id: <20201115202347.29224-10-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 10/27] drm/i915/pxp: Enable ioctl action to reserve session slot 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" With this ioctl action, ring3 driver can reserve a specific session slot/id assigned by ring0 PXP, as the first step of PXP session establishment flow. Ring3 PXP stores the session info in the session list structure. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/pxp/intel_pxp.c | 20 +++ drivers/gpu/drm/i915/pxp/intel_pxp.h | 24 +++- drivers/gpu/drm/i915/pxp/intel_pxp_sm.c | 168 ++++++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_sm.h | 3 + 4 files changed, 213 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index 8fa88ea17bc0..919ebe2405e3 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -40,6 +40,26 @@ int i915_pxp_ops_ioctl(struct drm_device *dev, void *data, struct drm_file *drmf } switch (pxp_info.action) { + case PXP_ACTION_SET_SESSION_STATUS: + { + struct pxp_sm_set_session_status_params *params = &pxp_info.set_session_status; + + if (params->req_session_state == PXP_SM_REQ_SESSION_ID_INIT) { + ret = intel_pxp_sm_reserve_session(i915, drmfile, 0, + params->session_type, + params->session_mode, + ¶ms->pxp_tag); + if (ret == PXP_SM_STATUS_RETRY_REQUIRED || + ret == PXP_SM_STATUS_SESSION_NOT_AVAILABLE) { + pxp_info.sm_status = ret; + ret = 0; + } + } else { + ret = -EINVAL; + goto end; + } + break; + } case PXP_ACTION_SET_R3_CONTEXT: { ret = intel_pxp_set_r3ctx(i915, pxp_info.set_r3ctx); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h index 95d3deba7ade..cbaf25690596 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -15,6 +15,9 @@ #define pxp_session_list(i915, session_type) (((session_type) == SESSION_TYPE_TYPE0) ? \ &(i915)->pxp.r0ctx->active_pxp_type0_sessions : &(i915)->pxp.r0ctx->active_pxp_type1_sessions) +#define pxp_session_max(session_type) (((session_type) == SESSION_TYPE_TYPE0) ? \ + MAX_TYPE0_SESSIONS : MAX_TYPE1_SESSIONS) + #define MAX_TYPE0_SESSIONS 16 #define MAX_TYPE1_SESSIONS 6 @@ -27,7 +30,10 @@ enum pxp_sm_session_req { PXP_SM_REQ_SESSION_TERMINATE }; -#define PXP_ACTION_SET_R3_CONTEXT 5 +enum pxp_ioctl_action { + PXP_ACTION_SET_SESSION_STATUS = 1, + PXP_ACTION_SET_R3_CONTEXT = 5, +}; enum pxp_sm_status { PXP_SM_STATUS_SUCCESS, @@ -36,10 +42,24 @@ enum pxp_sm_status { PXP_SM_STATUS_ERROR_UNKNOWN }; +struct pxp_sm_set_session_status_params { + /** @pxp_tag: in [optional], for Arbitrator session, out pxp tag */ + u32 pxp_tag; + /** @session_type: in, session type */ + u32 session_type; + /** @session_mode: in, session mode */ + u32 session_mode; + /** @req_session_state: in, new session state */ + u32 req_session_state; +}; + struct pxp_info { u32 action; u32 sm_status; - u32 set_r3ctx; + union { + struct pxp_sm_set_session_status_params set_session_status; + u32 set_r3ctx; + }; } __packed; struct pxp_context; diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c index f3223c9f71c7..3a22fb485cd8 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c @@ -307,6 +307,174 @@ static bool check_if_protected_type0_sessions_are_attacked(struct drm_i915_priva return false; } +/** + * create_new_session_entry - Create a new session entry with provided info. + * @i915: i915 device handle. + * @drmfile: pointer to drm_file + * @context_id: Numeric identifier of the context created by the caller. + * @session_type: Type of the session requested. One of enum pxp_session_types. + * @protection_mode: Type of protection requested for the session. + * One of the enum pxp_protection_modes. + * @session_index: Numeric session identifier. + * + * Return: status. 0 means creation is successful. + */ +static int create_new_session_entry(struct drm_i915_private *i915, struct drm_file *drmfile, + int context_id, int session_type, int protection_mode, + int session_index) +{ + int ret; + struct pxp_protected_session *new_session = NULL; + int pid = 0; + + if (drmfile) + pid = pid_nr(drmfile->pid); + + drm_dbg(&i915->drm, ">>> %s context_id=[%d] session_type=[%d] protection_mode=[%d] session_index=[%d] drmfile=[%p] pid=[%d]\n", + __func__, context_id, session_type, protection_mode, session_index, + drmfile, pid); + + new_session = kzalloc(sizeof(*new_session), GFP_KERNEL); + if (!new_session) { + ret = -ENOMEM; + drm_dbg(&i915->drm, "Failed to kzalloc()\n"); + goto end; + } + + new_session->context_id = context_id; + new_session->session_type = session_type; + new_session->protection_mode = protection_mode; + new_session->session_index = session_index; + new_session->session_is_in_play = false; + new_session->drmfile = drmfile; + new_session->pid = pid; + + switch (session_type) { + case SESSION_TYPE_TYPE0: + /* check to make sure the session id is within allowed range */ + if (session_index < 0 || session_index >= MAX_TYPE0_SESSIONS) { + /* session id out of range.. free the new entry and return error */ + kfree(new_session); + ret = -EINVAL; + drm_dbg(&i915->drm, "Failed to %s, bad params\n", __func__); + goto end; + } + + list_add(&new_session->session_list, &i915->pxp.r0ctx->active_pxp_type0_sessions); + break; + + case SESSION_TYPE_TYPE1: + /* check to make sure the session id is within allowed range */ + if (session_index < 0 || session_index >= MAX_TYPE1_SESSIONS) { + /* session id out of range.. free the new entry and return error */ + kfree(new_session); + ret = -EINVAL; + drm_dbg(&i915->drm, "Failed to %s, bad params\n", __func__); + goto end; + } + + list_add(&new_session->session_list, &i915->pxp.r0ctx->active_pxp_type1_sessions); + break; + + default: + /* session type is invalid... free new entry and return error. */ + kfree(new_session); + ret = -EINVAL; + drm_dbg(&i915->drm, "Failed to %s, bad params\n", __func__); + break; + } + ret = 0; +end: + return ret; +} + +/** + * intel_pxp_sm_reserve_session - To reserve an available protected session. + * @i915: i915 device handle. + * @drmfile: pointer to drm_file. + * @context_id: Numeric identifier of the context created by the caller. + * @session_type: Type of the session requested. One of enum pxp_session_types. + * @protection_mode: Type of protection requested for the session. One of the + * enum pxp_protection_modes. + * @pxp_tag: Numeric session identifier returned back to caller. + * + * Return: status. 0 means reserve is successful. + */ +int intel_pxp_sm_reserve_session(struct drm_i915_private *i915, struct drm_file *drmfile, + int context_id, int session_type, int protection_mode, + u32 *pxp_tag) +{ + int ret; + int session_index = 0; + + drm_dbg(&i915->drm, ">>> %s session_type=[%d] protection_mode=[%d]\n", __func__, + session_type, protection_mode); + + if (!pxp_tag || !i915) { + ret = -EINVAL; + drm_dbg(&i915->drm, "Failed to %s, bad params\n", __func__); + goto end; + } + + if (protection_mode != PROTECTION_MODE_LM && protection_mode != PROTECTION_MODE_HM && + protection_mode != PROTECTION_MODE_SM) { + ret = -EINVAL; + drm_dbg(&i915->drm, "Failed to %s, invalid session mode=[%d]\n", __func__, protection_mode); + goto end; + } + + lockdep_assert_held(&i915->pxp.r0ctx->ctx_mutex); + + if (session_type == SESSION_TYPE_TYPE0) { + /* + * check if sessions are under attack. if so, don't allow creation of + * new session entries + */ + if (check_if_protected_type0_sessions_are_attacked(i915)) { + /** protected sessions are under attack. return failure... **/ + ret = -EPERM; + goto end; + } + } + + /* + * iterate over the active sessions list to find next available open session id + * Cannot assume that the session entries will be sorted in the linked list + * as terminates are allowed at any time without re-sorting the linked list. + * So, the linked list should be walked start to finish to ensure a session is + * not already active + */ + for (session_index = 0; session_index < pxp_session_max(session_type); session_index++) { + if (!is_sw_session_active(i915, session_type, session_index, false, NULL)) { + ret = sync_hw_sw_state(i915, session_index, session_type); + if (unlikely(ret)) { + ret = PXP_SM_STATUS_RETRY_REQUIRED; + goto end; + } + + /* + * found an available session... create a new session entry + * with this identifier and return success + */ + ret = create_new_session_entry(i915, drmfile, context_id, session_type, + protection_mode, session_index); + if (unlikely(ret)) + goto end; + + ret = pxp_set_pxp_tag(i915, session_type, session_index, protection_mode); + goto end; + } + } + + ret = PXP_SM_STATUS_SESSION_NOT_AVAILABLE; +end: + if (ret == 0) + *pxp_tag = intel_pxp_get_pxp_tag(i915, session_index, session_type, NULL); + + drm_dbg(&i915->drm, "<<< %s ret=[%d]\n", __func__, ret); + return ret; +} + int pxp_sm_set_kcr_init_reg(struct drm_i915_private *i915) { int ret; diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h index c1f6b1be3fd1..44d9f8d1df8e 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h @@ -83,6 +83,9 @@ struct pxp_protected_session { bool session_is_in_play; }; +int intel_pxp_sm_reserve_session(struct drm_i915_private *i915, struct drm_file *drmfile, + int context_id, int session_type, int protection_mode, + u32 *pxp_tag); int pxp_sm_set_kcr_init_reg(struct drm_i915_private *i915); #endif /* __INTEL_PXP_SM_H__ */ From patchwork Sun Nov 15 20:23:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906787 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 2EC30C61DD8 for ; Sun, 15 Nov 2020 20:24:00 +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 EC506238E6 for ; Sun, 15 Nov 2020 20:23:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EC506238E6 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 2076F89F4F; Sun, 15 Nov 2020 20:23:53 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 04F7089F2A for ; Sun, 15 Nov 2020 20:23:48 +0000 (UTC) IronPort-SDR: QNPbQB2pQpigBTRdBih9kE73vXV9wMZ6qmdOH4ijnMGrGkLm2RiViJVbSC4hnOgy2wq2q6tKph FCgWafU9qzbQ== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="167165306" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="167165306" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:48 -0800 IronPort-SDR: ZNH3o2ADhCNfXO2jYUFlncuIFuGhXaQzk2okdQCt+GiMGgxQhr7NcglyVF63c0P2ngK1thw6lN 7wqqGEbeHpVw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005347" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:31 -0800 Message-Id: <20201115202347.29224-11-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 11/27] drm/i915/pxp: Enable ioctl action to set session in play 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" With this ioctl action, ring3 driver can set the session in state "session in play", after ring3 reserved the session slot/id from ring3 PXP, and sent the TEE commands to activate the corresponding hardware session. Session state "session in play" means this session is ready for secure playback. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/pxp/intel_pxp.c | 4 ++ drivers/gpu/drm/i915/pxp/intel_pxp_sm.c | 92 +++++++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_sm.h | 2 + 3 files changed, 98 insertions(+) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index 919ebe2405e3..c64200f52480 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -54,6 +54,10 @@ int i915_pxp_ops_ioctl(struct drm_device *dev, void *data, struct drm_file *drmf pxp_info.sm_status = ret; ret = 0; } + } else if (params->req_session_state == PXP_SM_REQ_SESSION_IN_PLAY) { + ret = pxp_sm_mark_protected_session_in_play(i915, params->session_type, + params->pxp_tag); + } else { ret = -EINVAL; goto end; diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c index 3a22fb485cd8..72ef29558dce 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c @@ -41,6 +41,25 @@ static int pxp_reg_write(struct drm_i915_private *i915, u32 offset, u32 regval) return 0; } +static int pxp_get_session_index(struct drm_i915_private *i915, u32 pxp_tag, + int *session_index_out, int *session_type_out) +{ + int ret; + + if (!session_index_out || !session_type_out) { + ret = -EINVAL; + drm_dbg(&i915->drm, "Failed to %s, bad params\n", __func__); + goto end; + } + + *session_type_out = (pxp_tag & SESSION_TYPE_MASK) ? SESSION_TYPE_TYPE1 : SESSION_TYPE_TYPE0; + *session_index_out = pxp_tag & SESSION_ID_MASK; + + ret = 0; +end: + return ret; +} + static u8 pxp_get_session_id(int session_index, int session_type) { u8 session_id = session_index & SESSION_ID_MASK; @@ -475,6 +494,79 @@ int intel_pxp_sm_reserve_session(struct drm_i915_private *i915, struct drm_file return ret; } +/** + * pxp_sm_mark_protected_session_in_play - To put an reserved protected session to "in_play" state + * @i915: i915 device handle. + * @session_type: Type of the session to be updated. One of enum pxp_session_types. + * @session_id: Session id identifier of the protected session. + * + * Return: status. 0 means update is successful. + */ +int pxp_sm_mark_protected_session_in_play(struct drm_i915_private *i915, int session_type, + u32 session_id) +{ + int ret; + int session_index; + int session_type_in_id; + struct pxp_protected_session *current_session; + + drm_dbg(&i915->drm, ">>> %s session_type=[%d] session_id=[0x%08x]\n", __func__, + session_type, session_id); + + ret = pxp_get_session_index(i915, session_id, &session_index, &session_type_in_id); + if (ret) { + drm_dbg(&i915->drm, "Failed to pxp_get_session_index\n"); + goto end; + } + + if (session_type != session_type_in_id) { + ret = -EINVAL; + drm_dbg(&i915->drm, "Failed to session_type and session_type_in_id don't match\n"); + goto end; + } + + lockdep_assert_held(&i915->pxp.r0ctx->ctx_mutex); + + switch (session_type) { + case SESSION_TYPE_TYPE0: + list_for_each_entry(current_session, &i915->pxp.r0ctx->active_pxp_type0_sessions, session_list) { + DRM_DEBUG("Traverse the active type0 list, session_index=[%d]\n", current_session->session_index); + drm_dbg(&i915->drm, "Traverse the active type0 list, session_index=[%d]\n", current_session->session_index); + if (current_session->session_index == session_index) { + current_session->session_is_in_play = true; + ret = 0; + goto end; + } + } + + drm_dbg(&i915->drm, "Failed to %s couldn't find active type0 session\n", __func__); + ret = -EINVAL; + goto end; + + case SESSION_TYPE_TYPE1: + list_for_each_entry(current_session, &i915->pxp.r0ctx->active_pxp_type1_sessions, session_list) { + drm_dbg(&i915->drm, "Traverse the active type1 list, session_index=[%d]\n", current_session->session_index); + if (current_session->session_index == session_index) { + current_session->session_is_in_play = true; + ret = 0; + goto end; + } + } + + drm_dbg(&i915->drm, "Failed to %s couldn't find active type1 session\n", __func__); + ret = -EINVAL; + goto end; + + default: + /* invalid session type */ + ret = -EINVAL; + break; + } +end: + drm_dbg(&i915->drm, "<<< %s ret=[%d]\n", __func__, ret); + return ret; +} + int pxp_sm_set_kcr_init_reg(struct drm_i915_private *i915) { int ret; diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h index 44d9f8d1df8e..8f3f7e4a742b 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h @@ -86,6 +86,8 @@ struct pxp_protected_session { int intel_pxp_sm_reserve_session(struct drm_i915_private *i915, struct drm_file *drmfile, int context_id, int session_type, int protection_mode, u32 *pxp_tag); +int pxp_sm_mark_protected_session_in_play(struct drm_i915_private *i915, int session_type, + u32 session_id); int pxp_sm_set_kcr_init_reg(struct drm_i915_private *i915); #endif /* __INTEL_PXP_SM_H__ */ From patchwork Sun Nov 15 20:23:32 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906833 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 AF579C2D0E4 for ; Sun, 15 Nov 2020 20:24:18 +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 7894B238E6 for ; Sun, 15 Nov 2020 20:24:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7894B238E6 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 2CAA66E9C8; Sun, 15 Nov 2020 20:24:17 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1F44289F2D for ; Sun, 15 Nov 2020 20:23:49 +0000 (UTC) IronPort-SDR: VmFRtXmE/enF25/+TUXu/w+m5FSyc4yCXKX/R3E76NxCpSuDWzvH/2UrMXMKPLz6379f2Ybiwv Esz0+kOBkAYQ== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="167165307" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="167165307" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:48 -0800 IronPort-SDR: S5rB+2KM52CScj+8w0bVFKH1SvbYe4lBdhxd+A4+ug+WCPcSeRFxswZ1y54+g08pTLCnYlyhn9 LAV0yVcwZwkw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005348" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:32 -0800 Message-Id: <20201115202347.29224-12-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 12/27] 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 ring0 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/pxp/intel_pxp_sm.c | 309 ++++++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_sm.h | 16 ++ 2 files changed, 325 insertions(+) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c index 72ef29558dce..40e1cde1b5d1 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c @@ -3,13 +3,175 @@ * Copyright(c) 2020, Intel Corporation. All rights reserved. */ +#include "gt/intel_gpu_commands.h" +#include "gt/intel_gt.h" #include "gt/intel_context.h" +#include "gt/intel_gt_buffer_pool.h" #include "gt/intel_engine_pm.h" #include "intel_pxp.h" #include "intel_pxp_sm.h" #include "intel_pxp_context.h" +static struct i915_vma *pxp_get_batch(struct drm_i915_private *i915, + 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); + u32 *cmd; + + drm_dbg(&i915->drm, ">>> %s cmd_buf=[%p] cmd_size_in_dw=[%d]\n", __func__, cmd_buf, cmd_size_in_dw); + + if (!ce || !ce->engine || !cmd_buf) { + drm_dbg(&i915->drm, "Failed to %s due to nullptr\n", __func__); + goto end; + } + + if (cmd_size_in_dw * 4 > PAGE_SIZE) { + drm_dbg(&i915->drm, "Failed to %s, invalid cmd_size_id_dw=[%d]\n", + __func__, cmd_size_in_dw); + goto end; + } + + cmd = i915_gem_object_pin_map(pool->obj, I915_MAP_FORCE_WC); + if (IS_ERR(cmd)) { + drm_dbg(&i915->drm, "Failed to i915_gem_object_pin_map()\n "); + goto end; + } + + 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_dbg(&i915->drm, "Failed to i915_vma_instance()\n "); + goto end; + } + +end: + drm_dbg(&i915->drm, "<<< %s: batch=[%p]\n", __func__, batch); + return batch; +} + +static int pxp_submit_cmd(struct drm_i915_private *i915, 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 = NULL; + + drm_dbg(&i915->drm, ">>> %s: cmd=[%p] cmd_size_in_dw=[%d]\n", + __func__, cmd, cmd_size_in_dw); + + if (!i915 || !HAS_ENGINE(&i915->gt, VCS0) || + !i915->gt.engine[VCS0]->kernel_context) { + err = -EINVAL; + drm_dbg(&i915->drm, "Failed to %s bad params\n", __func__); + goto end; + } + + if (!cmd || (cmd_size_in_dw * 4) > PAGE_SIZE) { + err = -EINVAL; + drm_dbg(&i915->drm, "Failed to %s bad params\n", __func__); + goto end; + } + + gt = &i915->gt; + ce = i915->gt.engine[VCS0]->kernel_context; + + 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_dbg(&i915->drm, "Failed to intel_engine_get_pool()\n"); + goto end; + } + is_engine_get_pool = true; + + batch = pxp_get_batch(i915, ce, pool, cmd, cmd_size_in_dw); + if (IS_ERR(batch)) { + drm_dbg(&i915->drm, "Failed to pxp_get_batch()\n"); + goto end; + } + + err = i915_vma_pin(batch, 0, 0, PIN_USER); + if (err) { + drm_dbg(&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_dbg(&i915->drm, "Failed to intel_context_create_request()\n"); + goto end; + } + is_skip_req_on_err = true; + + err = intel_gt_buffer_pool_mark_active(pool, rq); + if (err) { + drm_dbg(&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_dbg(&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_dbg(&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_dbg(&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); + + drm_dbg(&i915->drm, "<<< %s: err=[%d]\n", __func__, err); + return err; +} + static int pxp_sm_reg_read(struct drm_i915_private *i915, u32 offset, u32 *regval) { intel_wakeref_t wakeref; @@ -567,6 +729,153 @@ int pxp_sm_mark_protected_session_in_play(struct drm_i915_private *i915, int ses return ret; } +static int add_pxp_prolog(struct drm_i915_private *i915, 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; + + 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 >= MAX_TYPE1_SESSIONS) { + drm_dbg(&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 >= MAX_TYPE0_SESSIONS) { + drm_dbg(&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; +} + +static int add_pxp_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; +} + +static int add_pxp_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; +} + +static int issue_hw_terminate_for_session(struct drm_i915_private *i915, int session_type, + int session_index) +{ + u32 *cmd = NULL; + u32 *cmd_ptr = NULL; + int cmd_size_in_dw = 0; + int ret; + + drm_dbg(&i915->drm, ">>> %s session_type=[%d] session_index=[%d]\n", __func__, + session_type, session_index); + + if (!i915) { + ret = -EINVAL; + drm_dbg(&i915->drm, "Failed to %s due to bad params\n", __func__); + goto end; + } + + cmd_size_in_dw += add_pxp_prolog(i915, NULL, session_type, session_index); + cmd_size_in_dw += add_pxp_inline_termination(NULL); + cmd_size_in_dw += add_pxp_epilog(NULL); + + cmd = kzalloc(cmd_size_in_dw * 4, GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + drm_dbg(&i915->drm, "Failed to kzalloc()\n"); + goto end; + } + + cmd_ptr = cmd; + cmd_ptr += add_pxp_prolog(i915, cmd_ptr, session_type, session_index); + cmd_ptr += add_pxp_inline_termination(cmd_ptr); + cmd_ptr += add_pxp_epilog(cmd_ptr); + + if (cmd_size_in_dw != (cmd_ptr - cmd)) { + ret = -EINVAL; + drm_dbg(&i915->drm, "Failed to %s\n", __func__); + goto end; + } + + 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); + } + + ret = pxp_submit_cmd(i915, cmd, cmd_size_in_dw); + if (ret) { + drm_dbg(&i915->drm, "Failed to pxp_submit_cmd()\n"); + goto end; + } + +end: + kfree(cmd); + drm_dbg(&i915->drm, "<<< %s ret=[%d]\n", __func__, ret); + return ret; +} + int pxp_sm_set_kcr_init_reg(struct drm_i915_private *i915) { int ret; diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h index 8f3f7e4a742b..2a6fbf40da04 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h @@ -22,6 +22,22 @@ #define SESSION_TYPE_MASK BIT(7) #define SESSION_ID_MASK (BIT(7) - 1) +/* 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)) + enum pxp_session_types { SESSION_TYPE_TYPE0 = 0, SESSION_TYPE_TYPE1 = 1, From patchwork Sun Nov 15 20:23:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906813 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 0A13EC2D0E4 for ; Sun, 15 Nov 2020 20:24:08 +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 C6260238E6 for ; Sun, 15 Nov 2020 20:24:07 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C6260238E6 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 75B416E9B4; Sun, 15 Nov 2020 20:24:02 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3895789F2A for ; Sun, 15 Nov 2020 20:23:49 +0000 (UTC) IronPort-SDR: KxKAA8TYgVsMHSUQ5qA2and2ec0OEvY90qOkqoiRjuVUT9lrCCKslF59Lbthz/kIp+waDrbRjz ofjbGwnTpJsA== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="167165308" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="167165308" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:48 -0800 IronPort-SDR: DbojT7P+tY6JUANwH3hGFSo6A9y2D1EXJjc/LhMLXcXbGvrRoYpM5z2iG4iVnxonuT/VDlLaM1 DoGzOQDuAEig== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005349" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:33 -0800 Message-Id: <20201115202347.29224-13-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 13/27] drm/i915/pxp: Enable ioctl action to terminate the session 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" Enable the PXP ioctl action to allow ring3 PXP to terminate the hardware session and cleanup its software session state. Ring0 PXP sends the session termination command to GPU once receves this ioctl action. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/pxp/intel_pxp.c | 7 + drivers/gpu/drm/i915/pxp/intel_pxp_sm.c | 205 ++++++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_sm.h | 5 + 3 files changed, 217 insertions(+) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index c64200f52480..661ba618bf86 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -58,6 +58,13 @@ int i915_pxp_ops_ioctl(struct drm_device *dev, void *data, struct drm_file *drmf ret = pxp_sm_mark_protected_session_in_play(i915, params->session_type, params->pxp_tag); + } else if (params->req_session_state == PXP_SM_REQ_SESSION_TERMINATE) { + ret = pxp_sm_terminate_protected_session_safe(i915, 0, + params->session_type, + params->pxp_tag); + + if (!intel_pxp_sm_is_any_type0_session_in_play(i915, PROTECTION_MODE_ALL)) + intel_pxp_destroy_r3ctx_list(i915); } else { ret = -EINVAL; goto end; diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c index 40e1cde1b5d1..31ad4a330e58 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c @@ -876,6 +876,189 @@ static int issue_hw_terminate_for_session(struct drm_i915_private *i915, int ses return ret; } +/** + * terminate_protected_session - To terminate an active HW session and free its entry. + * @i915: i915 device handle. + * @context_id: context identifier of the requestor. only relevant if do_safety_check is true. + * @session_type: type of the session to be terminated. One of enum pxp_session_types. + * @session_index: session index of the session to be terminated. + * @do_safety_check: if enabled the context Id sent by the caller is + * matched with the one associated with the terminated + * session entry. + * + * Return: status. 0 means terminate is successful. + */ +static int terminate_protected_session(struct drm_i915_private *i915, int context_id, + int session_type, int session_index, + bool do_safety_check) +{ + int ret; + struct pxp_protected_session *current_session, *n; + + drm_dbg(&i915->drm, ">>> %s conext_id=[%d] session_type=[%d] session_index=[0x%08x] do_safety_check=[%d]\n", + __func__, context_id, session_type, session_index, do_safety_check); + + lockdep_assert_held(&i915->pxp.r0ctx->ctx_mutex); + + switch (session_type) { + case SESSION_TYPE_TYPE0: + list_for_each_entry_safe(current_session, n, &i915->pxp.r0ctx->active_pxp_type0_sessions, session_list) { + if (current_session->session_index == session_index) { + if (do_safety_check && current_session->context_id != context_id) { + ret = -EPERM; + drm_dbg(&i915->drm, "Failed to %s due to invalid context_id=[%d]\n", __func__, context_id); + goto end; + } + + ret = issue_hw_terminate_for_session(i915, session_type, session_index); + if (ret) { + drm_dbg(&i915->drm, "Failed to issue_hw_terminate_for_session()\n"); + goto end; + } + + ret = pxp_set_pxp_tag(i915, session_type, session_index, PROTECTION_MODE_NONE); + if (ret) { + drm_dbg(&i915->drm, "Failed to pxp_set_pxp_tag()\n"); + goto end; + } + + /* delete the current session entry from the linked list */ + list_del(¤t_session->session_list); + + /* free the memory associated with the current context entry */ + kfree(current_session); + + /* TODO: special arbitrator session checks? */ + + ret = 0; + goto end; + } + } + + drm_dbg(&i915->drm, "Warning - Couldn't find the type0 session_index=[0x%08x]\n", session_index); + ret = 0; + break; + + case SESSION_TYPE_TYPE1: + list_for_each_entry_safe(current_session, n, &i915->pxp.r0ctx->active_pxp_type1_sessions, session_list) { + if (current_session->session_index == session_index) { + if (do_safety_check && current_session->context_id != context_id) { + ret = -EPERM; + drm_dbg(&i915->drm, "Failed to %s due to invalid context_id=[%d]\n", __func__, context_id); + goto end; + } + + ret = issue_hw_terminate_for_session(i915, session_type, session_index); + if (ret) { + drm_dbg(&i915->drm, "Failed to issue_hw_terminate_for_session()\n"); + goto end; + } + + ret = pxp_set_pxp_tag(i915, session_type, session_index, PROTECTION_MODE_NONE); + if (ret) { + drm_dbg(&i915->drm, "Failed to pxp_set_pxp_tag()\n"); + goto end; + } + + /* delete the current session entry from the linked list */ + list_del(¤t_session->session_list); + + /* free the memory associated with the current context entry */ + kfree(current_session); + + ret = 0; + goto end; + } + } + + drm_dbg(&i915->drm, "Warning - Couldn't find the type1 session_index=[0x%08x]\n", session_index); + ret = 0; + break; + + default: + /* invalid session type */ + ret = -EINVAL; + break; + } +end: + drm_dbg(&i915->drm, "<<< %s ret=[%d]\n", __func__, ret); + return ret; +} + +/** + * pxp_sm_terminate_protected_session_safe - to terminate an active HW session and free its entry. + * @i915: i915 device handle. + * @context_id: context identifier of the requestor. + * @session_type: type of the session to be terminated. One of enum pxp_session_types. + * @session_id: session id identifier of the session to be terminated. + * + * For safety, the context Id sent by the caller is matched with the + * one associated with the terminated session entry. * Terminate is + * only issued if context Ids match. Rejected otherwise This function + * is intended to be called from the ioctl. + * + * Return: status. 0 means terminate is successful. + */ +int pxp_sm_terminate_protected_session_safe(struct drm_i915_private *i915, int context_id, + int session_type, int session_id) +{ + int ret; + int session_type_in_id; + int session_idx; + + ret = pxp_get_session_index(i915, session_id, &session_idx, &session_type_in_id); + if (ret) { + drm_dbg(&i915->drm, "Failed to pxp_get_session_index\n"); + return ret; + } + + if (session_type != session_type_in_id) { + ret = -EINVAL; + drm_dbg(&i915->drm, "Failed to session_type and session_type_in_id don't match\n"); + return ret; + } + + ret = terminate_protected_session(i915, context_id, session_type, session_idx, true); + + return ret; +} + +/** + * pxp_sm_terminate_protected_session_unsafe - To terminate an active HW session and free its entry. + * @i915: i915 device handle. + * @session_type: type of the session to be terminated. One of enum pxp_session_types. + * @session_id: session id identifier of the session to be terminated. + * + * No safety; the context Id sent by the caller is not matched with + * the one associated with the terminated session entry. This function + * is NOT intended to be called from the ioctl. Kernel administration + * purposes only. + * + * Return: status. 0 means terminate is successful. + */ +int pxp_sm_terminate_protected_session_unsafe(struct drm_i915_private *i915, int session_type, int session_id) +{ + int ret; + int session_idx; + int session_type_in_id; + + ret = pxp_get_session_index(i915, session_id, &session_idx, &session_type_in_id); + if (ret) { + drm_dbg(&i915->drm, "Failed to pxp_get_session_index\n"); + return ret; + } + + if (session_type != session_type_in_id) { + ret = -EINVAL; + drm_dbg(&i915->drm, "Failed to session_type and session_type_in_id don't match\n"); + return ret; + } + + ret = terminate_protected_session(i915, -1, session_type, session_idx, false); + + return ret; +} + int pxp_sm_set_kcr_init_reg(struct drm_i915_private *i915) { int ret; @@ -892,3 +1075,25 @@ int pxp_sm_set_kcr_init_reg(struct drm_i915_private *i915) drm_dbg(&i915->drm, "<<< %s ret=[%d]\n", __func__, ret); return ret; } + +/** + * intel_pxp_sm_is_any_type0_session_in_play - To check if there is a type0 "in play" session. + * @i915: i915 device handle. + * @protection_mode: check for specified protection mode of the session + * + * Return: True if at least one alive session in "session in play" state, false otherwise. + */ +bool intel_pxp_sm_is_any_type0_session_in_play(struct drm_i915_private *i915, int protection_mode) +{ + struct pxp_protected_session *session, *n; + + list_for_each_entry_safe(session, n, pxp_session_list(i915, SESSION_TYPE_TYPE0), + session_list) { + if (protection_mode == PROTECTION_MODE_ALL) + return true; + else if (protection_mode == session->protection_mode) + return true; + } + + return false; +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h index 2a6fbf40da04..26597b1d18e1 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h @@ -104,6 +104,11 @@ int intel_pxp_sm_reserve_session(struct drm_i915_private *i915, struct drm_file u32 *pxp_tag); int pxp_sm_mark_protected_session_in_play(struct drm_i915_private *i915, int session_type, u32 session_id); +int pxp_sm_terminate_protected_session_safe(struct drm_i915_private *i915, int context_id, + int session_type, int session_id); +int pxp_sm_terminate_protected_session_unsafe(struct drm_i915_private *i915, int session_type, + int session_id); int pxp_sm_set_kcr_init_reg(struct drm_i915_private *i915); +bool intel_pxp_sm_is_any_type0_session_in_play(struct drm_i915_private *i915, int protection_mode); #endif /* __INTEL_PXP_SM_H__ */ From patchwork Sun Nov 15 20:23:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906827 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 A32E5C2D0E4 for ; Sun, 15 Nov 2020 20:24:16 +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 72581238E6 for ; Sun, 15 Nov 2020 20:24:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 72581238E6 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 E29676E9C2; Sun, 15 Nov 2020 20:24:15 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5F5C389F38 for ; Sun, 15 Nov 2020 20:23:49 +0000 (UTC) IronPort-SDR: YMzaVGhLfzctRBA56qEY0ItvWQ6j4GS9E+EDcqyYZGsA6vN+ghr0NfxC51x4DN2nPBAjrRk3lO oHqzsZy8gRHw== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="167165309" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="167165309" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:48 -0800 IronPort-SDR: jOI8mJbYsXWQHsKrnUeqOtO4lzNbuNeCiaBcB8VUYYB/c2BbQ1uqc2jKQ/5wIwKrdVRnvzly7B AMP+f9XGUFdA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005350" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:34 -0800 Message-Id: <20201115202347.29224-14-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 14/27] drm/i915/pxp: Enable ioctl action to query PXP tag 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" Enable the PXP ioctl action to allow ring3 PXP to query the PXP tag, which is a 32-bit bitwise value indicating the current session info, including protection type, session id, and whether the session is enabled. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/pxp/intel_pxp.c | 7 +++++++ drivers/gpu/drm/i915/pxp/intel_pxp.h | 7 +++++++ drivers/gpu/drm/i915/pxp/intel_pxp_sm.c | 28 +++++++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_sm.h | 3 +++ 4 files changed, 45 insertions(+) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index 661ba618bf86..bb99fbdb8e18 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -71,6 +71,13 @@ int i915_pxp_ops_ioctl(struct drm_device *dev, void *data, struct drm_file *drmf } break; } + case PXP_ACTION_QUERY_PXP_TAG: + { + struct pxp_sm_query_pxp_tag *params = &pxp_info.query_pxp_tag; + + ret = pxp_sm_ioctl_query_pxp_tag(i915, ¶ms->session_is_alive, ¶ms->pxp_tag); + break; + } case PXP_ACTION_SET_R3_CONTEXT: { ret = intel_pxp_set_r3ctx(i915, pxp_info.set_r3ctx); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h index cbaf25690596..8851c28a0e57 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -31,6 +31,7 @@ enum pxp_sm_session_req { }; enum pxp_ioctl_action { + PXP_ACTION_QUERY_PXP_TAG = 0, PXP_ACTION_SET_SESSION_STATUS = 1, PXP_ACTION_SET_R3_CONTEXT = 5, }; @@ -42,6 +43,11 @@ enum pxp_sm_status { PXP_SM_STATUS_ERROR_UNKNOWN }; +struct pxp_sm_query_pxp_tag { + u32 session_is_alive; + u32 pxp_tag; /* in - Session ID, out pxp tag */ +}; + struct pxp_sm_set_session_status_params { /** @pxp_tag: in [optional], for Arbitrator session, out pxp tag */ u32 pxp_tag; @@ -57,6 +63,7 @@ struct pxp_info { u32 action; u32 sm_status; union { + struct pxp_sm_query_pxp_tag query_pxp_tag; struct pxp_sm_set_session_status_params set_session_status; u32 set_r3ctx; }; diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c index 31ad4a330e58..2111549aca8f 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c @@ -1059,6 +1059,34 @@ int pxp_sm_terminate_protected_session_unsafe(struct drm_i915_private *i915, int return ret; } +int pxp_sm_ioctl_query_pxp_tag(struct drm_i915_private *i915, u32 *session_is_alive, u32 *pxp_tag) +{ + int session_type = 0; + int session_index = 0; + int ret; + + drm_dbg(&i915->drm, ">>> %s\n", __func__); + + if (!session_is_alive || !pxp_tag) { + ret = -EINVAL; + drm_dbg(&i915->drm, "Failed to %s, bad param\n", __func__); + goto end; + } + + ret = pxp_get_session_index(i915, *pxp_tag, &session_index, &session_type); + if (ret) { + drm_dbg(&i915->drm, "Failed to __pxpsessionid_to_sessionid\n"); + goto end; + } + + *pxp_tag = intel_pxp_get_pxp_tag(i915, session_index, session_type, session_is_alive); + + ret = 0; +end: + drm_dbg(&i915->drm, "<<< %s ret=[%d]\n", __func__, ret); + return ret; +} + int pxp_sm_set_kcr_init_reg(struct drm_i915_private *i915) { int ret; diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h index 26597b1d18e1..859f3c1f8c6e 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h @@ -108,7 +108,10 @@ int pxp_sm_terminate_protected_session_safe(struct drm_i915_private *i915, int c int session_type, int session_id); int pxp_sm_terminate_protected_session_unsafe(struct drm_i915_private *i915, int session_type, int session_id); +int pxp_sm_ioctl_query_pxp_tag(struct drm_i915_private *i915, u32 *session_is_alive, u32 *pxp_tag); int pxp_sm_set_kcr_init_reg(struct drm_i915_private *i915); +u32 intel_pxp_get_pxp_tag(struct drm_i915_private *i915, int session_idx, + int session_type, u32 *session_is_alive); bool intel_pxp_sm_is_any_type0_session_in_play(struct drm_i915_private *i915, int protection_mode); #endif /* __INTEL_PXP_SM_H__ */ From patchwork Sun Nov 15 20:23:35 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906809 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 5F51AC63697 for ; Sun, 15 Nov 2020 20:24:04 +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 27E30238E6 for ; Sun, 15 Nov 2020 20:24:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 27E30238E6 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 7AF4F89FC8; Sun, 15 Nov 2020 20:23:53 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 75A6A89F49 for ; Sun, 15 Nov 2020 20:23:49 +0000 (UTC) IronPort-SDR: n0t9gUbEjjgZ9BJ88hj/T1j2c/kiWDnvWmOJ69iExHUSCPFGx8PtxEHw0Oycd2gg4iLqTR7T+V 5ws924El9HMw== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="167165310" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="167165310" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:48 -0800 IronPort-SDR: h17i/tappJnWhjFE8HqLrmJCrzcvP8TY2CHfPYaBTTnDNp4Wdwg/JeDyU9jKT69HrlXJf/x3/1 ExZfyiLSK6tQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005351" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:35 -0800 Message-Id: <20201115202347.29224-15-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 15/27] drm/i915/pxp: Destroy all type0 sessions 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, ring0 PXP should handle such case and terminate all the type0 sessions. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/pxp/intel_pxp.c | 6 +- drivers/gpu/drm/i915/pxp/intel_pxp_sm.c | 118 ++++++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_sm.h | 1 + 3 files changed, 124 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index bb99fbdb8e18..c9b6ac42b215 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -127,6 +127,8 @@ static void intel_pxp_mask_irq(struct intel_gt *gt, u32 mask) static int intel_pxp_teardown_required_callback(struct drm_i915_private *i915) { + int ret; + drm_dbg(&i915->drm, "%s was called\n", __func__); mutex_lock(&i915->pxp.r0ctx->ctx_mutex); @@ -134,11 +136,13 @@ static int intel_pxp_teardown_required_callback(struct drm_i915_private *i915) i915->pxp.r0ctx->global_state_attacked = true; i915->pxp.r0ctx->flag_display_hm_surface_keys = false; + ret = intel_pxp_sm_terminate_all_active_sessions(i915, SESSION_TYPE_TYPE0); + intel_pxp_destroy_r3ctx_list(i915); mutex_unlock(&i915->pxp.r0ctx->ctx_mutex); - return 0; + return ret; } static int intel_pxp_global_terminate_complete_callback(struct drm_i915_private *i915) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c index 2111549aca8f..89c32b06c52e 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c @@ -876,6 +876,73 @@ static int issue_hw_terminate_for_session(struct drm_i915_private *i915, int ses return ret; } +static int terminate_all_hw_sessions_with_global_termination(struct drm_i915_private *i915, + int session_type) +{ + u32 *cmd = NULL; + u32 *cmd_ptr = NULL; + int cmd_size_in_dw = 0; + int ret; + int session_index; + const int session_num_max = pxp_session_max(session_type); + + drm_dbg(&i915->drm, ">>> %s session_type=[%d]\n", __func__, session_type); + + if (!i915) { + ret = -EINVAL; + drm_dbg(&i915->drm, "Failed to %s due to bad params\n", __func__); + goto end; + } + + /* Calculate how many bytes need to be alloc */ + for (session_index = 0; session_index < session_num_max; session_index++) { + if (is_hw_session_in_play(i915, session_type, session_index)) { + cmd_size_in_dw += add_pxp_prolog(i915, NULL, session_type, session_index); + cmd_size_in_dw += add_pxp_inline_termination(NULL); + } + } + cmd_size_in_dw += add_pxp_epilog(NULL); + + cmd = kzalloc(cmd_size_in_dw * 4, GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + drm_dbg(&i915->drm, "Failed to kzalloc()\n"); + goto end; + } + + /* Program the command */ + cmd_ptr = cmd; + for (session_index = 0; session_index < session_num_max; session_index++) { + if (is_hw_session_in_play(i915, session_type, session_index)) { + cmd_ptr += add_pxp_prolog(i915, cmd_ptr, session_type, session_index); + cmd_ptr += add_pxp_inline_termination(cmd_ptr); + } + } + cmd_ptr += add_pxp_epilog(cmd_ptr); + + if (cmd_size_in_dw != (cmd_ptr - cmd)) { + ret = -EINVAL; + drm_dbg(&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 = pxp_submit_cmd(i915, cmd, cmd_size_in_dw); + if (ret) { + drm_dbg(&i915->drm, "Failed to pxp_submit_cmd()\n"); + goto end; + } + +end: + kfree(cmd); + drm_dbg(&i915->drm, "<<< %s ret=[%d]\n", __func__, ret); + return ret; +} + /** * terminate_protected_session - To terminate an active HW session and free its entry. * @i915: i915 device handle. @@ -1059,6 +1126,57 @@ int pxp_sm_terminate_protected_session_unsafe(struct drm_i915_private *i915, int return ret; } +static int intel_pxp_sm_destroy_all_sw_sessions(struct drm_i915_private *i915, int session_type) +{ + int ret = 0; + struct pxp_protected_session *current_session, *n; + + list_for_each_entry_safe(current_session, n, pxp_session_list(i915, session_type), session_list) { + ret = pxp_set_pxp_tag(i915, session_type, current_session->session_index, PROTECTION_MODE_NONE); + if (ret) + drm_dbg(&i915->drm, "Failed to pxp_set_pxp_tag()\n"); + + list_del(¤t_session->session_list); + kfree(current_session); + } + + return ret; +} + +/** + * intel_pxp_sm_terminate_all_active_sessions - Terminate all active HW sessions and their entries. + * @i915: i915 device handle. + * @session_type: Type of the sessions to be terminated. + * One of enum pxp_session_types. + * + * 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_sm_terminate_all_active_sessions(struct drm_i915_private *i915, int session_type) +{ + int ret; + + lockdep_assert_held(&i915->pxp.r0ctx->ctx_mutex); + + /* terminate the hw sessions */ + ret = terminate_all_hw_sessions_with_global_termination(i915, session_type); + if (ret) { + drm_dbg(&i915->drm, "Failed to terminate_all_hw_sessions_with_global_termination\n"); + goto end; + } + + ret = intel_pxp_sm_destroy_all_sw_sessions(i915, session_type); + if (ret) { + drm_dbg(&i915->drm, "Failed to intel_pxp_sm_destroy_all_sw_sessions\n"); + goto end; + } + +end: + return ret; +} + int pxp_sm_ioctl_query_pxp_tag(struct drm_i915_private *i915, u32 *session_is_alive, u32 *pxp_tag) { int session_type = 0; diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h index 859f3c1f8c6e..955182a90bfe 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h @@ -108,6 +108,7 @@ int pxp_sm_terminate_protected_session_safe(struct drm_i915_private *i915, int c int session_type, int session_id); int pxp_sm_terminate_protected_session_unsafe(struct drm_i915_private *i915, int session_type, int session_id); +int intel_pxp_sm_terminate_all_active_sessions(struct drm_i915_private *i915, int session_type); int pxp_sm_ioctl_query_pxp_tag(struct drm_i915_private *i915, u32 *session_is_alive, u32 *pxp_tag); int pxp_sm_set_kcr_init_reg(struct drm_i915_private *i915); u32 intel_pxp_get_pxp_tag(struct drm_i915_private *i915, int session_idx, From patchwork Sun Nov 15 20:23:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906793 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 2E2E5C63697 for ; Sun, 15 Nov 2020 20:23:59 +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 EAE25238E6 for ; Sun, 15 Nov 2020 20:23:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EAE25238E6 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 1CFEB89F38; Sun, 15 Nov 2020 20:23:53 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7811389F4F for ; Sun, 15 Nov 2020 20:23:49 +0000 (UTC) IronPort-SDR: 813a+WPNtB1RIFnkQQTCkrG9BWPak4vaYHbzL4PuzD8j2NUgF82W791HLzdr2OF65RoYXp016k ZkYPB3i1TcCg== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="167165311" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="167165311" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:48 -0800 IronPort-SDR: MStPoym/G0IZ9NV8xNXSMnQmmXScTPyIek6x1hLOEsAwYOTN8Q5EI3MebFPbGylHMy6N5DbTaM b//Bg+PcU4wQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005352" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:36 -0800 Message-Id: <20201115202347.29224-16-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 16/27] drm/i915/pxp: Termiante the session upon app crash 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" Ring0 PXP should terminate the hardware session and cleanup the software state gracefully when the application has established the protection session, but doesn't close the session correctly due to some cases like application crash. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/i915_drv.c | 2 ++ drivers/gpu/drm/i915/pxp/intel_pxp.c | 15 +++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp.h | 1 + drivers/gpu/drm/i915/pxp/intel_pxp_sm.c | 21 +++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_sm.h | 1 + 5 files changed, 40 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 43ea85b5f14b..e61ffce52e3e 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -1028,6 +1028,8 @@ static void i915_driver_postclose(struct drm_device *dev, struct drm_file *file) /* Catch up with all the deferred frees from "this" client */ i915_gem_flush_free_objects(to_i915(dev)); + + intel_pxp_close(to_i915(dev), file); } static void intel_suspend_encoders(struct drm_i915_private *dev_priv) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index c9b6ac42b215..50968373c68e 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -103,6 +103,21 @@ int i915_pxp_ops_ioctl(struct drm_device *dev, void *data, struct drm_file *drmf return ret; } +int intel_pxp_close(struct drm_i915_private *i915, struct drm_file *drmfile) +{ + int ret; + + drm_dbg(&i915->drm, ">>> %s i915=[%p] drmfile=[%p] pid=[%d]\n", __func__, + i915, drmfile, pid_nr(drmfile->pid)); + + mutex_lock(&i915->pxp.r0ctx->ctx_mutex); + ret = intel_pxp_sm_close(i915, drmfile); + mutex_unlock(&i915->pxp.r0ctx->ctx_mutex); + + drm_dbg(&i915->drm, "<<< %s ret=[%d]\n", __func__, ret); + return ret; +} + static void intel_pxp_write_irq_mask_reg(struct drm_i915_private *i915, u32 mask) { WARN_ON(INTEL_GEN(i915) < 11); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h index 8851c28a0e57..3d70b9bab79f 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -83,6 +83,7 @@ struct intel_gt; struct drm_i915_private; int i915_pxp_ops_ioctl(struct drm_device *dev, void *data, struct drm_file *drmfile); +int intel_pxp_close(struct drm_i915_private *i915, struct drm_file *drmfile); void intel_pxp_irq_handler(struct intel_gt *gt, u16 iir); int i915_pxp_teardown_required_callback(struct drm_i915_private *i915); int i915_pxp_global_terminate_complete_callback(struct drm_i915_private *i915); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c index 89c32b06c52e..ec28eb5d77e5 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c @@ -1243,3 +1243,24 @@ bool intel_pxp_sm_is_any_type0_session_in_play(struct drm_i915_private *i915, in return false; } + +int intel_pxp_sm_close(struct drm_i915_private *i915, struct drm_file *drmfile) +{ + struct pxp_protected_session *s, *n; + int ret = 0; + + drm_dbg(&i915->drm, ">>> %s\n", __func__); + + list_for_each_entry_safe(s, n, pxp_session_list(i915, SESSION_TYPE_TYPE0), session_list) { + if (s->drmfile && s->drmfile == drmfile && s->pid == pid_nr(drmfile->pid)) { + ret = terminate_protected_session(i915, 0, s->session_type, s->session_index, false); + if (ret) { + drm_dbg(&i915->drm, "Failed to terminate_protected_session()\n"); + return ret; + } + } + } + + drm_dbg(&i915->drm, "<<< %s ret=[%d]\n", __func__, ret); + return ret; +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h index 955182a90bfe..b968a3169133 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h @@ -114,5 +114,6 @@ int pxp_sm_set_kcr_init_reg(struct drm_i915_private *i915); u32 intel_pxp_get_pxp_tag(struct drm_i915_private *i915, int session_idx, int session_type, u32 *session_is_alive); bool intel_pxp_sm_is_any_type0_session_in_play(struct drm_i915_private *i915, int protection_mode); +int intel_pxp_sm_close(struct drm_i915_private *i915, struct drm_file *drmfile); #endif /* __INTEL_PXP_SM_H__ */ From patchwork Sun Nov 15 20:23:37 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906829 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=-9.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY,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 06C2DC61DD8 for ; Sun, 15 Nov 2020 20:24:17 +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 C3E18238E6 for ; Sun, 15 Nov 2020 20:24:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C3E18238E6 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 DB4036E9C1; Sun, 15 Nov 2020 20:24:15 +0000 (UTC) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2AD9D89F24 for ; Sun, 15 Nov 2020 20:23:49 +0000 (UTC) IronPort-SDR: C0VFkVnq4DdAT/Q6v4B2pZqg7eBNa4XbLbvgGTYaWdw9sEEUaDTQF7KuF5yRYC4dbx03YR6Lth ldya3lqgCnLg== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="234832206" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="234832206" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:48 -0800 IronPort-SDR: LLoLF+a5RbJzT++PjVmFWtARGIn7HMvOMV64AbJvsvSNW0ATHybfOZDi9WTHyZN5dYWE6Kuylm AdLpMl3THtCg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005353" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:37 -0800 Message-Id: <20201115202347.29224-17-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 17/27] 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, ring0 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 | 3 +- drivers/gpu/drm/i915/i915_drv.c | 8 +++ drivers/gpu/drm/i915/pxp/intel_pxp_pm.c | 82 +++++++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_pm.h | 16 +++++ 4 files changed, 108 insertions(+), 1 deletion(-) 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 81432a9f44d6..6858392c1ef2 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -258,7 +258,8 @@ i915-y += i915_perf.o i915-y += \ pxp/intel_pxp.o \ pxp/intel_pxp_context.o \ - pxp/intel_pxp_sm.o + pxp/intel_pxp_sm.o \ + pxp/intel_pxp_pm.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 e61ffce52e3e..830708414f92 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" @@ -1094,6 +1096,8 @@ static int i915_drm_prepare(struct drm_device *dev) */ i915_gem_suspend(i915); + intel_pxp_pm_prepare_suspend(i915); + return 0; } @@ -1277,6 +1281,8 @@ static int i915_drm_resume(struct drm_device *dev) intel_power_domains_enable(dev_priv); + intel_pxp_pm_resume(dev_priv); + enable_rpm_wakeref_asserts(&dev_priv->runtime_pm); return 0; @@ -1348,6 +1354,8 @@ static int i915_drm_resume_early(struct drm_device *dev) intel_power_domains_resume(dev_priv); + intel_pxp_pm_resume_early(dev_priv); + 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..8227856922a2 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c @@ -0,0 +1,82 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020 Intel Corporation. + */ + +#include "intel_pxp_context.h" +#include "intel_pxp_sm.h" +#include "intel_pxp_pm.h" + +void intel_pxp_pm_prepare_suspend(struct drm_i915_private *i915) +{ + drm_dbg(&i915->drm, ">>> %s\n", __func__); + + if (!i915->pxp.r0ctx) + return; + + mutex_lock(&i915->pxp.r0ctx->ctx_mutex); + + /* Disable PXP-IOCTLs */ + i915->pxp.r0ctx->global_state_in_suspend = true; + + mutex_unlock(&i915->pxp.r0ctx->ctx_mutex); + + drm_dbg(&i915->drm, "<<< %s\n", __func__); +} + +void intel_pxp_pm_resume_early(struct drm_i915_private *i915) +{ + drm_dbg(&i915->drm, ">>> %s\n", __func__); + + if (!i915->pxp.r0ctx) + return; + + mutex_lock(&i915->pxp.r0ctx->ctx_mutex); + + if (i915->pxp.r0ctx->global_state_in_suspend) { + /* reset the attacked flag even there was a pending */ + i915->pxp.r0ctx->global_state_attacked = false; + + i915->pxp.r0ctx->flag_display_hm_surface_keys = false; + } + + mutex_unlock(&i915->pxp.r0ctx->ctx_mutex); + drm_dbg(&i915->drm, "<<< %s\n", __func__); +} + +int intel_pxp_pm_resume(struct drm_i915_private *i915) +{ + int ret = 0; + + drm_dbg(&i915->drm, ">>> %s\n", __func__); + + if (!i915->pxp.r0ctx) + return 0; + + mutex_lock(&i915->pxp.r0ctx->ctx_mutex); + + /* Re-enable PXP-IOCTLs */ + if (i915->pxp.r0ctx->global_state_in_suspend) { + intel_pxp_destroy_r3ctx_list(i915); + + ret = intel_pxp_sm_terminate_all_active_sessions(i915, SESSION_TYPE_TYPE0); + if (ret) { + drm_dbg(&i915->drm, "Failed to intel_pxp_sm_terminate_all_active_sessions with type0\n"); + goto end; + } + + ret = intel_pxp_sm_terminate_all_active_sessions(i915, SESSION_TYPE_TYPE1); + if (ret) { + drm_dbg(&i915->drm, "Failed to intel_pxp_sm_terminate_all_active_sessions with type1\n"); + goto end; + } + + i915->pxp.r0ctx->global_state_in_suspend = false; + } + +end: + mutex_unlock(&i915->pxp.r0ctx->ctx_mutex); + drm_dbg(&i915->drm, "<<< %s ret=[%d]\n", __func__, ret); + + 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..d2af781c3de1 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.h @@ -0,0 +1,16 @@ +/* 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" + +void intel_pxp_pm_prepare_suspend(struct drm_i915_private *i915); + +void intel_pxp_pm_resume_early(struct drm_i915_private *i915); +int intel_pxp_pm_resume(struct drm_i915_private *i915); + +#endif From patchwork Sun Nov 15 20:23:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906823 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=-9.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY,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 8EFF0C63697 for ; Sun, 15 Nov 2020 20:24:15 +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 5BCA1238E6 for ; Sun, 15 Nov 2020 20:24:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5BCA1238E6 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 030246E9BF; Sun, 15 Nov 2020 20:24:15 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9010D89F03 for ; Sun, 15 Nov 2020 20:23:49 +0000 (UTC) IronPort-SDR: 2C8vyOflghVjenlHJaMvw2tx66UKfQgfboN8itypaylG0i/HQdL5zNq9Eu+3yMyqoGyvyjXLXe HA8QyBgSbmGA== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="167165312" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="167165312" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:48 -0800 IronPort-SDR: u31d1HqHBitvmmGDz2YXh77+bvqgaRTKLpgP+aD4duYesgRAtmxRNUAj3S1UrFihMdCVvMxnID TvR3H+wPNwHw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005354" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:38 -0800 Message-Id: <20201115202347.29224-18-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 18/27] 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" Currently ring3 driver sends the TEE commands directly to TEE, but later, as our design, we would like to make ring3 sending the TEE commands via the ring0 PXP ioctl action instead of TEE ioctl, so we can centralize those protection operations at ring0 PXP. Co-developed-by: Vitaly Lubart Co-developed-by: Tomas Winkler Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/Makefile | 1 + 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 | 140 +++++++++++++++++++++++ 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, 213 insertions(+) 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 6858392c1ef2..1f3e0b89ae42 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -259,6 +259,7 @@ i915-y += \ pxp/intel_pxp.o \ pxp/intel_pxp_context.o \ pxp/intel_pxp_sm.o \ + pxp/intel_pxp_tee.o \ pxp/intel_pxp_pm.o # Post-mortem debug and GPU hang state capture diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 830708414f92..73c77a4e8216 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -324,6 +324,7 @@ 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 f34ed07a68ee..9ba6eada4f84 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1219,6 +1219,12 @@ struct drm_i915_private { struct intel_pxp pxp; + 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 50968373c68e..a17af81a8d54 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -7,6 +7,7 @@ #include "intel_pxp.h" #include "intel_pxp_context.h" #include "intel_pxp_sm.h" +#include "intel_pxp_tee.h" int i915_pxp_ops_ioctl(struct drm_device *dev, void *data, struct drm_file *drmfile) { @@ -220,6 +221,8 @@ int intel_pxp_init(struct drm_i915_private *i915) return ret; } + intel_pxp_tee_component_init(i915); + INIT_WORK(&i915->pxp.irq_work, intel_pxp_irq_work); i915->pxp.handled_irr = (PXP_IRQ_VECTOR_DISPLAY_PXP_STATE_TERMINATED | @@ -231,6 +234,8 @@ int intel_pxp_init(struct drm_i915_private *i915) void intel_pxp_uninit(struct drm_i915_private *i915) { + intel_pxp_tee_component_fini(i915); + intel_pxp_destroy_r0ctx(i915); } 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..88418fbd370e --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c @@ -0,0 +1,140 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020 Intel Corporation. + */ + +#include +#include "drm/i915_pxp_tee_interface.h" +#include "drm/i915_component.h" +#include "intel_pxp.h" +#include "intel_pxp_context.h" +#include "intel_pxp_tee.h" + +static int intel_pxp_tee_io_message(struct drm_i915_private *i915, + void *msg_in, u32 msg_in_size, + void *msg_out, u32 *msg_out_size_ptr, + u32 msg_out_buf_size) +{ + int ret; + struct i915_pxp_comp_master *pxp_tee_master = i915->pxp_tee_master; + + if (!pxp_tee_master || !msg_in || !msg_out || !msg_out_size_ptr) { + ret = -EINVAL; + drm_dbg(&i915->drm, "Failed to %s, invalid params\n", __func__); + goto end; + } + + 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) { + ret = -EFAULT; + drm_dbg(&i915->drm, "Failed to send TEE message\n"); + goto end; + } + + ret = pxp_tee_master->ops->receive(pxp_tee_master->tee_dev, msg_out, msg_out_buf_size); + if (ret < 0) { + ret = -EFAULT; + drm_dbg(&i915->drm, "Failed to receive TEE message\n"); + goto end; + } + + if (ret > msg_out_buf_size) { + ret = -EFAULT; + drm_dbg(&i915->drm, "Failed to receive TEE message due to unexpected output size\n"); + goto end; + } + + *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); +end: + 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); + + drm_dbg(&i915->drm, "i915 PXP TEE component bind\n"); + + if (!i915 || !tee_kdev || !data) { + drm_dbg(&i915->drm, "Failed to bind for i915 PXP TEE component, invalid params\n"); + 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); + + drm_dbg(&i915->drm, "i915 PXP TEE component unbind\n"); + + if (!i915 || !tee_kdev || !data) { + drm_dbg(&i915->drm, "Failed to unbind for i915 PXP TEE component, invalid params\n"); + 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 drm_i915_private *i915) +{ + int ret; + + drm_WARN_ON(&i915->drm, i915->pxp_tee_comp_added); + + ret = component_add_typed(i915->drm.dev, &i915_pxp_tee_component_ops, + I915_COMPONENT_PXP); + if (ret < 0) { + drm_dbg_kms(&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 drm_i915_private *i915) +{ + mutex_lock(&i915->pxp_tee_comp_mutex); + 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..0d0fbd0ed018 --- /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 "i915_drv.h" + +void intel_pxp_tee_component_init(struct drm_i915_private *i915); +void intel_pxp_tee_component_fini(struct drm_i915_private *i915); + +#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 Sun Nov 15 20:23:39 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906819 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 7A983C63697 for ; Sun, 15 Nov 2020 20:24:09 +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 41AEE238E6 for ; Sun, 15 Nov 2020 20:24:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 41AEE238E6 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 D86B96E99A; Sun, 15 Nov 2020 20:24:02 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 90F4289F53 for ; Sun, 15 Nov 2020 20:23:49 +0000 (UTC) IronPort-SDR: QP27arXdDBv7Hp0W6xL74GdbSorpAumoI/FUxAGMGLDzVN1v7PiazrLKnDiVX/0hSZAfJsqSvn 6DPEVovhsuWQ== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="167165313" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="167165313" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:48 -0800 IronPort-SDR: TmHHHjRaEFYKVvvBDIV3yfO8I0fqeYChxucubvQFDwgISPzuXqY0VNYs126mOv3WmToQ6WXgyO JwzZQlvoEO/Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005355" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:39 -0800 Message-Id: <20201115202347.29224-19-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 19/27] drm/i915/pxp: Enable ioctl action to send TEE commands 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" Enable the ioctl action to allow ring3 driver sends TEE commands via ring0 PXP ioctl, instead of TEE iotcl. So we can centralize those protection operations at ring0 PXP. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/pxp/intel_pxp.c | 14 +++++ drivers/gpu/drm/i915/pxp/intel_pxp.h | 18 +++++++ drivers/gpu/drm/i915/pxp/intel_pxp_tee.c | 65 ++++++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_tee.h | 5 ++ 4 files changed, 102 insertions(+) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index a17af81a8d54..d0df35d99e37 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -79,6 +79,20 @@ int i915_pxp_ops_ioctl(struct drm_device *dev, void *data, struct drm_file *drmf ret = pxp_sm_ioctl_query_pxp_tag(i915, ¶ms->session_is_alive, ¶ms->pxp_tag); break; } + case PXP_ACTION_TEE_IO_MESSAGE: + { + struct pxp_tee_io_message_params *params = &pxp_info.tee_io_message; + + ret = pxp_tee_ioctl_io_message(i915, + params->msg_in, params->msg_in_size, + params->msg_out, ¶ms->msg_out_size, + params->msg_out_buf_size); + if (ret) { + drm_dbg(&i915->drm, "Failed to send TEE IO message\n"); + ret = -EFAULT; + } + break; + } case PXP_ACTION_SET_R3_CONTEXT: { ret = intel_pxp_set_r3ctx(i915, pxp_info.set_r3ctx); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h index 3d70b9bab79f..2c16ed0b5c0b 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -33,6 +33,7 @@ enum pxp_sm_session_req { enum pxp_ioctl_action { PXP_ACTION_QUERY_PXP_TAG = 0, PXP_ACTION_SET_SESSION_STATUS = 1, + PXP_ACTION_TEE_IO_MESSAGE = 4, PXP_ACTION_SET_R3_CONTEXT = 5, }; @@ -59,12 +60,29 @@ struct pxp_sm_set_session_status_params { u32 req_session_state; }; +/** + * struct pxp_tee_io_message_params - Params to send/receive message to/from TEE. + */ +struct pxp_tee_io_message_params { + /** @msg_in: in - message input from UMD */ + u8 __user *msg_in; + /** @msg_in_size: in - message input size from UMD */ + u32 msg_in_size; + /** @msg_out: in - message output buffer from UMD */ + u8 __user *msg_out; + /** @msg_out_size: out- message output size from TEE */ + u32 msg_out_size; + /** @msg_out_buf_size: in - message output buffer size from UMD */ + u32 msg_out_buf_size; +}; + struct pxp_info { u32 action; u32 sm_status; union { struct pxp_sm_query_pxp_tag query_pxp_tag; struct pxp_sm_set_session_status_params set_session_status; + struct pxp_tee_io_message_params tee_io_message; u32 set_r3ctx; }; } __packed; diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c index 88418fbd370e..b83490aaa350 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c @@ -60,6 +60,71 @@ static int intel_pxp_tee_io_message(struct drm_i915_private *i915, return ret; } +int pxp_tee_ioctl_io_message(struct drm_i915_private *i915, + void __user *msg_in_user_ptr, u32 msg_in_size, + void __user *msg_out_user_ptr, u32 *msg_out_size_ptr, + u32 msg_out_buf_size) +{ + int ret; + void *msg_in = NULL; + void *msg_out = NULL; + + drm_dbg(&i915->drm, ">>> %s\n", __func__); + + if (!msg_in_user_ptr || !msg_out_user_ptr || msg_out_buf_size == 0 || + msg_in_size == 0 || !msg_out_size_ptr) { + ret = -EINVAL; + drm_dbg(&i915->drm, "Failed to %s, invalid params\n", __func__); + goto end; + } + + msg_in = kzalloc(msg_in_size, GFP_KERNEL); + if (!msg_in) { + ret = -ENOMEM; + drm_dbg(&i915->drm, "Failed to kzalloc\n"); + goto end; + } + + msg_out = kzalloc(msg_out_buf_size, GFP_KERNEL); + if (!msg_out) { + ret = -ENOMEM; + drm_dbg(&i915->drm, "Failed to kzalloc\n"); + goto end; + } + + if (copy_from_user(msg_in, msg_in_user_ptr, msg_in_size) != 0) { + ret = -EFAULT; + drm_dbg(&i915->drm, "Failed to copy_from_user for TEE message\n"); + goto end; + } + + mutex_lock(&i915->pxp_tee_comp_mutex); + + ret = intel_pxp_tee_io_message(i915, + msg_in, msg_in_size, + msg_out, msg_out_size_ptr, + msg_out_buf_size); + + mutex_unlock(&i915->pxp_tee_comp_mutex); + + if (ret) { + drm_dbg(&i915->drm, "Failed to send/receive tee message\n"); + goto end; + } + + if (copy_to_user(msg_out_user_ptr, msg_out, *msg_out_size_ptr) != 0) { + ret = -EFAULT; + drm_dbg(&i915->drm, "Failed to copy_to_user for TEE message\n"); + goto end; + } + +end: + kfree(msg_in); + kfree(msg_out); + drm_dbg(&i915->drm, "<<< %s ret=[%d]\n", __func__, ret); + return ret; +} + /** * i915_pxp_tee_component_bind - bind funciton to pass the function pointers to pxp_tee * @i915_kdev: pointer to i915 kernel device diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.h b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.h index 0d0fbd0ed018..8b1581c2f50f 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.h @@ -11,4 +11,9 @@ void intel_pxp_tee_component_init(struct drm_i915_private *i915); void intel_pxp_tee_component_fini(struct drm_i915_private *i915); +int pxp_tee_ioctl_io_message(struct drm_i915_private *i915, + void __user *msg_in_user_ptr, u32 msg_in_size, + void __user *msg_out_user_ptr, u32 *msg_out_size_ptr, + u32 msg_out_buf_size); + #endif /* __INTEL_PXP_TEE_H__ */ From patchwork Sun Nov 15 20:23:40 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906805 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 ECAE6C2D0E4 for ; Sun, 15 Nov 2020 20:24:05 +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 B21A8238E6 for ; Sun, 15 Nov 2020 20:24:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B21A8238E6 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 52A6489FF9; Sun, 15 Nov 2020 20:24:02 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id A91FE89F77 for ; Sun, 15 Nov 2020 20:23:49 +0000 (UTC) IronPort-SDR: u7STHCGC7LTTjkIYqqwIuChl6fmFtbhZNntLIMbylHLcm6qyhNSfIc/2fCLqlobEfuDRywkmOe iJuI+2phmpdQ== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="167165314" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="167165314" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:48 -0800 IronPort-SDR: 2kePqpiP2UL9RpxVJhkZ4uUKmLo+98ocVzHbHA6SeldKqK6ySgdaIpzoKp54hFio5TmikNhRO0 WrKvWkKb48iQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005357" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:40 -0800 Message-Id: <20201115202347.29224-20-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 20/27] 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/pxp/intel_pxp.c | 50 +++++++++++++++++++++++- drivers/gpu/drm/i915/pxp/intel_pxp.h | 2 + drivers/gpu/drm/i915/pxp/intel_pxp_sm.c | 33 ++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_sm.h | 6 +++ drivers/gpu/drm/i915/pxp/intel_pxp_tee.c | 34 ++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp_tee.h | 6 +++ 6 files changed, 130 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index d0df35d99e37..5251cc628fb0 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -133,6 +133,46 @@ int intel_pxp_close(struct drm_i915_private *i915, struct drm_file *drmfile) return ret; } +int intel_pxp_create_arb_session(struct drm_i915_private *i915) +{ + struct pxp_tag pxptag; + int ret; + + drm_dbg(&i915->drm, ">>> %s\n", __func__); + + lockdep_assert_held(&i915->pxp.r0ctx->ctx_mutex); + + if (i915->pxp.r0ctx->flag_display_hm_surface_keys) { + drm_dbg(&i915->drm, "%s: arb session is alive so skipping the creation\n", + __func__); + return 0; + } + + ret = intel_pxp_sm_reserve_arb_session(i915, &pxptag.value); + if (ret) { + drm_dbg(&i915->drm, "Failed to reserve session\n"); + goto end; + } + + ret = intel_pxp_tee_cmd_create_arb_session(i915); + if (ret) { + drm_dbg(&i915->drm, "Failed to send tee cmd for arb session creation\n"); + goto end; + } + + ret = pxp_sm_mark_protected_session_in_play(i915, ARB_SESSION_TYPE, pxptag.session_id); + if (ret) { + drm_dbg(&i915->drm, "Failed to mark session status in play\n"); + goto end; + } + + i915->pxp.r0ctx->flag_display_hm_surface_keys = true; + +end: + drm_dbg(&i915->drm, "<<< %s ret=[%d]\n", __func__, ret); + return ret; +} + static void intel_pxp_write_irq_mask_reg(struct drm_i915_private *i915, u32 mask) { WARN_ON(INTEL_GEN(i915) < 11); @@ -183,9 +223,17 @@ static int intel_pxp_global_terminate_complete_callback(struct drm_i915_private mutex_lock(&i915->pxp.r0ctx->ctx_mutex); - if (i915->pxp.r0ctx->global_state_attacked) + if (i915->pxp.r0ctx->global_state_attacked) { i915->pxp.r0ctx->global_state_attacked = false; + /* Re-create the arb session after teardown handle complete */ + ret = intel_pxp_create_arb_session(i915); + if (ret) { + drm_dbg(&i915->drm, "Failed to create arb session\n"); + goto end; + } + } +end: mutex_unlock(&i915->pxp.r0ctx->ctx_mutex); drm_dbg(&i915->drm, "<<< %s ret=[%d]\n", __func__, ret); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h index 2c16ed0b5c0b..c0119ccdab08 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -102,6 +102,8 @@ struct drm_i915_private; int i915_pxp_ops_ioctl(struct drm_device *dev, void *data, struct drm_file *drmfile); int intel_pxp_close(struct drm_i915_private *i915, struct drm_file *drmfile); +int intel_pxp_create_arb_session(struct drm_i915_private *i915); + void intel_pxp_irq_handler(struct intel_gt *gt, u16 iir); int i915_pxp_teardown_required_callback(struct drm_i915_private *i915); int i915_pxp_global_terminate_complete_callback(struct drm_i915_private *i915); diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c index ec28eb5d77e5..5777e5550871 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c @@ -656,6 +656,39 @@ int intel_pxp_sm_reserve_session(struct drm_i915_private *i915, struct drm_file return ret; } +int intel_pxp_sm_reserve_arb_session(struct drm_i915_private *i915, u32 *pxp_tag) +{ + int ret; + + drm_dbg(&i915->drm, ">>> %s\n", __func__); + + lockdep_assert_held(&i915->pxp.r0ctx->ctx_mutex); + + if (!pxp_tag || !i915) { + ret = -EINVAL; + drm_dbg(&i915->drm, "Failed to %s, bad params\n", __func__); + goto end; + } + + ret = sync_hw_sw_state(i915, ARB_SESSION_INDEX, ARB_SESSION_TYPE); + if (unlikely(ret)) + goto end; + + ret = create_new_session_entry(i915, NULL, 0, ARB_SESSION_TYPE, + ARB_PROTECTION_MODE, ARB_SESSION_INDEX); + if (unlikely(ret)) + goto end; + + ret = pxp_set_pxp_tag(i915, ARB_SESSION_TYPE, ARB_SESSION_INDEX, ARB_PROTECTION_MODE); + +end: + if (ret == 0) + *pxp_tag = intel_pxp_get_pxp_tag(i915, ARB_SESSION_INDEX, ARB_SESSION_TYPE, NULL); + + drm_dbg(&i915->drm, "<<< %s ret=[%d]\n", __func__, ret); + return ret; +} + /** * pxp_sm_mark_protected_session_in_play - To put an reserved protected session to "in_play" state * @i915: i915 device handle. diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h index b968a3169133..17ece9a375db 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h @@ -38,6 +38,11 @@ /* CRYPTO_KEY_EXCHANGE */ #define CRYPTO_KEY_EXCHANGE ((0x3 << 29) | (0x01609 << 16)) +/* Arbitrary session */ +#define ARB_SESSION_INDEX 0xf +#define ARB_SESSION_TYPE SESSION_TYPE_TYPE0 +#define ARB_PROTECTION_MODE PROTECTION_MODE_HM + enum pxp_session_types { SESSION_TYPE_TYPE0 = 0, SESSION_TYPE_TYPE1 = 1, @@ -102,6 +107,7 @@ struct pxp_protected_session { int intel_pxp_sm_reserve_session(struct drm_i915_private *i915, struct drm_file *drmfile, int context_id, int session_type, int protection_mode, u32 *pxp_tag); +int intel_pxp_sm_reserve_arb_session(struct drm_i915_private *i915, u32 *pxp_tag); int pxp_sm_mark_protected_session_in_play(struct drm_i915_private *i915, int session_type, u32 session_id); int pxp_sm_terminate_protected_session_safe(struct drm_i915_private *i915, int context_id, diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c index b83490aaa350..7e158bafce1c 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c @@ -138,6 +138,7 @@ int pxp_tee_ioctl_io_message(struct drm_i915_private *i915, static int i915_pxp_tee_component_bind(struct device *i915_kdev, struct device *tee_kdev, void *data) { + int ret; struct drm_i915_private *i915 = kdev_to_i915(i915_kdev); drm_dbg(&i915->drm, "i915 PXP TEE component bind\n"); @@ -152,6 +153,16 @@ 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(&i915->pxp.r0ctx->ctx_mutex); + /* Create arb session only if tee is ready, during system boot or sleep/resume */ + ret = intel_pxp_create_arb_session(i915); + mutex_unlock(&i915->pxp.r0ctx->ctx_mutex); + + if (ret) { + drm_dbg(&i915->drm, "Failed to create arb session ret=[%d]\n", ret); + return ret; + } + return 0; } @@ -203,3 +214,26 @@ void intel_pxp_tee_component_fini(struct drm_i915_private *i915) component_del(i915->drm.dev, &i915_pxp_tee_component_ops); } + +int intel_pxp_tee_cmd_create_arb_session(struct drm_i915_private *i915) +{ + int ret; + u32 msg_out_size_received = 0; + u32 msg_in[PXP_TEE_ARB_CMD_DW_LEN] = PXP_TEE_ARB_CMD_BIN; + u32 msg_out[PXP_TEE_ARB_CMD_DW_LEN] = {0}; + + mutex_lock(&i915->pxp_tee_comp_mutex); + + ret = intel_pxp_tee_io_message(i915, + &msg_in, + sizeof(msg_in), + &msg_out, &msg_out_size_received, + sizeof(msg_out)); + + mutex_unlock(&i915->pxp_tee_comp_mutex); + + if (ret) + drm_dbg(&i915->drm, "Failed to send/receive tee message\n"); + + 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 8b1581c2f50f..77403bdd4484 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.h @@ -16,4 +16,10 @@ int pxp_tee_ioctl_io_message(struct drm_i915_private *i915, void __user *msg_out_user_ptr, u32 *msg_out_size_ptr, u32 msg_out_buf_size); +int intel_pxp_tee_cmd_create_arb_session(struct drm_i915_private *i915); + +/* TEE command to create the arbitrary session */ +#define PXP_TEE_ARB_CMD_BIN {0x00040000, 0x0000001e, 0x00000000, 0x00000008, 0x00000002, 0x0000000f} +#define PXP_TEE_ARB_CMD_DW_LEN (6) + #endif /* __INTEL_PXP_TEE_H__ */ From patchwork Sun Nov 15 20:23:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906817 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=-9.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY,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 2D1D8C6369E for ; Sun, 15 Nov 2020 20:24:10 +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 E8B58238E6 for ; Sun, 15 Nov 2020 20:24:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E8B58238E6 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 52C0A6E9B1; Sun, 15 Nov 2020 20:24:02 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id A9B4089F9F for ; Sun, 15 Nov 2020 20:23:49 +0000 (UTC) IronPort-SDR: yWO//Qf6C4LcOyb/VLCm0mpFlUAXF1obGGkZYjbVCDnl2Ghx/4TTEWtoKeBA5OEWZXBMozyJ3F EeUNIz4hN0vQ== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="167165315" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="167165315" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:48 -0800 IronPort-SDR: Uo4GMrwYYeX+VE1Nvr+b9bTc/sUBymhS0l0ps4BMbpZlJhrP7g9oBXeOISBnQGi3YkCM1AO4SD GVFwzPNfQKdA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005358" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:41 -0800 Message-Id: <20201115202347.29224-21-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 21/27] drm/i915/pxp: Add i915 trace logs for PXP operations 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" Add several i915 trace logs for PXP calls for debugging or performance measurement, including: (1) PXP ioctl (2) PXP teardown callbacks To trun on this feature, we need to set "CONFIG_DRM_I915_LOW_LEVEL_TRACEPOINTS=y" in .config for compiling the Linux kernel. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/i915_trace.h | 44 ++++++++++++++++++++++++++++ drivers/gpu/drm/i915/pxp/intel_pxp.c | 5 ++++ 2 files changed, 49 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h index a4addcc64978..36470e20dc61 100644 --- a/drivers/gpu/drm/i915/i915_trace.h +++ b/drivers/gpu/drm/i915/i915_trace.h @@ -1031,6 +1031,50 @@ DEFINE_EVENT(i915_context, i915_context_free, TP_ARGS(ctx) ); +TRACE_EVENT(i915_pxp_ops_ioctl, + TP_PROTO(struct drm_device *dev, void *data, struct drm_file *file, u32 action), + TP_ARGS(dev, data, file, action), + + TP_STRUCT__entry( + __field(struct drm_device *, dev) + __field(void *, data) + __field(struct drm_file *, file) + __field(u32, action) + ), + + TP_fast_assign( + __entry->dev = dev; + __entry->data = data; + __entry->file = file; + __entry->action = action; + ), + + TP_printk("dev=%p, data=%p, file=%p, action=%u", + __entry->dev, __entry->data, __entry->file, __entry->action) +); + +TRACE_EVENT(i915_pxp_teardown_required_callback, + TP_PROTO(bool global_state_attacked), + TP_ARGS(global_state_attacked), + + TP_STRUCT__entry(__field(bool, global_state_attacked)), + + TP_fast_assign(__entry->global_state_attacked = global_state_attacked;), + + TP_printk("global_state_attacked=%s", yesno(__entry->global_state_attacked)) +); + +TRACE_EVENT(i915_pxp_global_terminate_complete_callback, + TP_PROTO(bool global_state_attacked), + TP_ARGS(global_state_attacked), + + TP_STRUCT__entry(__field(bool, global_state_attacked)), + + TP_fast_assign(__entry->global_state_attacked = global_state_attacked;), + + TP_printk("global_state_attacked=%s", yesno(__entry->global_state_attacked)) +); + #endif /* _I915_TRACE_H_ */ /* This part must be outside protection */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index 5251cc628fb0..44d17ae27b94 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -8,6 +8,7 @@ #include "intel_pxp_context.h" #include "intel_pxp_sm.h" #include "intel_pxp_tee.h" +#include "i915_trace.h" int i915_pxp_ops_ioctl(struct drm_device *dev, void *data, struct drm_file *drmfile) { @@ -23,6 +24,7 @@ int i915_pxp_ops_ioctl(struct drm_device *dev, void *data, struct drm_file *drmf return -EFAULT; drm_dbg(&i915->drm, "i915 pxp ioctl call with action=[%d]\n", pxp_info.action); + trace_i915_pxp_ops_ioctl(dev, data, drmfile, pxp_info.action); mutex_lock(&i915->pxp.r0ctx->ctx_mutex); @@ -212,6 +214,8 @@ static int intel_pxp_teardown_required_callback(struct drm_i915_private *i915) mutex_unlock(&i915->pxp.r0ctx->ctx_mutex); + trace_i915_pxp_teardown_required_callback(i915->pxp.r0ctx->global_state_attacked); + return ret; } @@ -236,6 +240,7 @@ static int intel_pxp_global_terminate_complete_callback(struct drm_i915_private end: mutex_unlock(&i915->pxp.r0ctx->ctx_mutex); + trace_i915_pxp_global_terminate_complete_callback(i915->pxp.r0ctx->global_state_attacked); drm_dbg(&i915->drm, "<<< %s ret=[%d]\n", __func__, ret); return ret; From patchwork Sun Nov 15 20:23:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906831 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 5BFA8C61DD8 for ; Sun, 15 Nov 2020 20:24:19 +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 27364238E6 for ; Sun, 15 Nov 2020 20:24:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 27364238E6 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 3D8E06E9C5; Sun, 15 Nov 2020 20:24:18 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id C333A89FAC for ; Sun, 15 Nov 2020 20:23:49 +0000 (UTC) IronPort-SDR: Kiu3dWO0/CWt5wdHN0O5poaUAVvBKtRykkQUYyREiQJANXMydixYMwtgPJGzRhrrQCLTpNAikc DplNmiiai7mg== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="167165316" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="167165316" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:48 -0800 IronPort-SDR: mUlbXlbpHZve2+D2c+bWf1+W32FlCt09I/IwTa2u8EZFjZH6iaE/6UPFta3BOSO6LquoL77A54 a6XrnLEatFXQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005359" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:42 -0800 Message-Id: <20201115202347.29224-22-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 22/27] 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 ring0 i915 display querying the current PXP session state. In the design, ring0 display should not perform protection flip on the protected buffers if there is no PXP session alive. Signed-off-by: Huang, Sean Z --- drivers/gpu/drm/i915/pxp/intel_pxp.c | 8 ++++++++ drivers/gpu/drm/i915/pxp/intel_pxp.h | 2 ++ 2 files changed, 10 insertions(+) diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c index 44d17ae27b94..05fe143675b1 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -334,3 +334,11 @@ void intel_pxp_irq_handler(struct intel_gt *gt, u16 iir) end: return; } + +bool intel_pxp_gem_object_status(struct drm_i915_private *i915, u64 gem_object_metadata) +{ + if (i915->pxp.r0ctx && i915->pxp.r0ctx->flag_display_hm_surface_keys) + return true; + else + return false; +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h index c0119ccdab08..eb0e548ce434 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp.h +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -111,4 +111,6 @@ int i915_pxp_global_terminate_complete_callback(struct drm_i915_private *i915); int intel_pxp_init(struct drm_i915_private *i915); void intel_pxp_uninit(struct drm_i915_private *i915); +bool intel_pxp_gem_object_status(struct drm_i915_private *i915, u64 gem_object_metadata); + #endif From patchwork Sun Nov 15 20:23:43 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906785 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 0E50EC63699 for ; Sun, 15 Nov 2020 20:24:01 +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 C7EA8238E6 for ; Sun, 15 Nov 2020 20:24:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C7EA8238E6 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 D8F2C89F2D; Sun, 15 Nov 2020 20:23:52 +0000 (UTC) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 39B5589F2E for ; Sun, 15 Nov 2020 20:23:49 +0000 (UTC) IronPort-SDR: 2zvKw5DYEP00WI6WPLylfFfK1mSMr7z8G3samuElDgWdsblJo9oWj84VvK2YE0GeNRVMmPOkmT HsaSdB0iqykg== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="234832207" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="234832207" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:48 -0800 IronPort-SDR: 6isvOqIATkO+7eApWT2Mtlpkv4MyDGaaWVEXCmfiHAaA7c7yJ5v10A4Kg1RPbnotl3+2/sb/2a BkiDaQybLkEg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005363" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:43 -0800 Message-Id: <20201115202347.29224-23-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 23/27] mei: bus: enable pavp device. 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: Tomas Winkler MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Tomas Winkler Enable protected audio video path client on mei client bus. Signed-off-by: Tomas Winkler --- drivers/misc/mei/bus-fixup.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/misc/mei/bus-fixup.c b/drivers/misc/mei/bus-fixup.c index 4e30fa98fe7d..042399b397c9 100644 --- a/drivers/misc/mei/bus-fixup.c +++ b/drivers/misc/mei/bus-fixup.c @@ -33,6 +33,9 @@ static const uuid_le mei_nfc_info_guid = MEI_UUID_NFC_INFO; #define MEI_UUID_HDCP UUID_LE(0xB638AB7E, 0x94E2, 0x4EA2, \ 0xA5, 0x52, 0xD1, 0xC5, 0x4B, 0x62, 0x7F, 0x04) +#define MEI_UUID_PAVP UUID_LE(0xfbf6fcf1, 0x96cf, 0x4e2e, 0xA6, \ + 0xa6, 0x1b, 0xab, 0x8c, 0xbe, 0x36, 0xb1) + #define MEI_UUID_ANY NULL_UUID_LE /** @@ -488,6 +491,7 @@ static struct mei_fixup { MEI_FIXUP(MEI_UUID_MKHIF_FIX, mei_mkhi_fix), MEI_FIXUP(MEI_UUID_HDCP, whitelist), MEI_FIXUP(MEI_UUID_ANY, vt_support), + MEI_FIXUP(MEI_UUID_PAVP, whitelist), }; /** From patchwork Sun Nov 15 20:23:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906807 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 5E71DC63699 for ; Sun, 15 Nov 2020 20:24:03 +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 2D576238E6 for ; Sun, 15 Nov 2020 20:24:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2D576238E6 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 8C56389FC9; Sun, 15 Nov 2020 20:23:53 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id CF2FD89FC8 for ; Sun, 15 Nov 2020 20:23:49 +0000 (UTC) IronPort-SDR: isJosJEEWJCHfQ5kbm7MVqE2PZhdsH8Sl3K/OKS2casxxwnT9roN9O1nlG3ofSxlcJW/vIMBo8 voSEJRWEgzDw== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="167165317" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="167165317" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:48 -0800 IronPort-SDR: aK2scnmgTsKF3K+N+vaaYsUJlP4S+vBWvmROjTaIpASzFu3C+7/3lY/FZ1SQv35Lheqer/+lXg Yn5Up5yerJfA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005366" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:44 -0800 Message-Id: <20201115202347.29224-24-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 24/27] 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 c06581ffa7bd..36884b0a6395 100644 --- a/drivers/misc/mei/Kconfig +++ b/drivers/misc/mei/Kconfig @@ -57,3 +57,5 @@ config INTEL_MEI_VIRTIO device over virtio. 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 52aefaab5c1b..cab19c96ba7a 100644 --- a/drivers/misc/mei/Makefile +++ b/drivers/misc/mei/Makefile @@ -29,3 +29,4 @@ 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 Sun Nov 15 20:23:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906783 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=-9.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY,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 3B33BC61DD8 for ; Sun, 15 Nov 2020 20:23:58 +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 EA7D4238E6 for ; Sun, 15 Nov 2020 20:23:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EA7D4238E6 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 CA1B289F24; Sun, 15 Nov 2020 20:23:52 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id E73D889F24 for ; Sun, 15 Nov 2020 20:23:49 +0000 (UTC) IronPort-SDR: 3xFXAFFk2f9LL8JC1+APoO/W0rPUNzweZGqchCSLNRjzFiNllwwMZ6Rs7LeXYkIbQ/akKOmD8m QGQNEsX7rJWw== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="167165318" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="167165318" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:48 -0800 IronPort-SDR: vBTIF/O9V0YDc09BG1B9XPNoU5U1f09Lvv3zpt59EkopT5+RKO/WD10w8x04YDGMMXQkm8gn9k 1TjfCjS4Xn9Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005369" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:45 -0800 Message-Id: <20201115202347.29224-25-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 25/27] drm/i915/uapi: introduce drm_i915_gem_create_ext for TGL 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 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 73c77a4e8216..a2b5b6f2723f 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -1742,7 +1742,7 @@ 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 58276694c848..41698a823737 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 180f97fd91dc..97d4fefa7ad8 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) @@ -730,6 +731,27 @@ 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; @@ -1700,6 +1722,31 @@ 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 Sun Nov 15 20:23:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Sean Z" X-Patchwork-Id: 11906811 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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 4750BC63699 for ; Sun, 15 Nov 2020 20:24:07 +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 0B510238E6 for ; Sun, 15 Nov 2020 20:24:07 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0B510238E6 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 83CE76E9B6; Sun, 15 Nov 2020 20:24:02 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0C59089F38 for ; Sun, 15 Nov 2020 20:23:50 +0000 (UTC) IronPort-SDR: Kbz8MBDPamqr1z4/kIfsO5DyB3qHiXfyQ+UvHKRusl6SgvR324FbD5rANZt3vq8Q83s1R2/eWA 8MGiQudGixmA== X-IronPort-AV: E=McAfee;i="6000,8403,9806"; a="167165319" X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="167165319" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2020 12:23:48 -0800 IronPort-SDR: eHwNqzV0oEP1hoKA78ixH3hFtq/1WLgsQtaYrn8kC9jMUk9qv8fA1ODob63kPoeZdnQxc/jGNA VQ2hoBnAIgwg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,481,1596524400"; d="scan'208";a="430005372" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:46 -0800 Message-Id: <20201115202347.29224-26-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 26/27] drm/i915/pavp: 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 | 15 ++++++++++-- drivers/gpu/drm/i915/gem/i915_gem_context.h | 10 ++++++++ .../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, 67 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 4fd38101bb56..1ca3265d6ca3 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_context.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c @@ -2063,12 +2063,23 @@ 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) + i915_gem_context_set_protected(ctx); + 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 a133f92bbedb..5897e7ca11a8 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_context.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.h @@ -70,6 +70,16 @@ static inline void i915_gem_context_set_recoverable(struct i915_gem_context *ctx set_bit(UCONTEXT_RECOVERABLE, &ctx->user_flags); } +static inline void i915_gem_context_set_protected(struct i915_gem_context *ctx) +{ + set_bit(UCONTEXT_PROTECTED, &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 ae14ca24a11f..81ae94c2be86 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_context_types.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_context_types.h @@ -135,7 +135,7 @@ 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 41698a823737..6a791fd24eaa 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 97d4fefa7ad8..997591e377c0 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -1717,6 +1717,15 @@ 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; @@ -1736,6 +1745,16 @@ 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; 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d="scan'208";a="430005374" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga001.fm.intel.com with ESMTP; 15 Nov 2020 12:23:47 -0800 From: "Huang, Sean Z" To: Intel-gfx@lists.freedesktop.org Date: Sun, 15 Nov 2020 12:23:47 -0800 Message-Id: <20201115202347.29224-27-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201115202347.29224-1-sean.z.huang@intel.com> References: <20201115202347.29224-1-sean.z.huang@intel.com> Subject: [Intel-gfx] [PATCH 27/27] 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 a3ab44694118..12c549beb05f 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" @@ -752,6 +754,11 @@ 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, @@ -788,6 +795,7 @@ 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; @@ -798,7 +806,7 @@ 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); @@ -874,8 +882,15 @@ 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, obj->user_flags) && + 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 5c51c9df8b28..0ac7678cd6ba 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -7206,6 +7206,7 @@ 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