From mboxrd@z Thu Jan 1 00:00:00 1970 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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 367EEC64EBC for ; Sat, 14 Nov 2020 01:46:08 +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 03D932225D for ; Sat, 14 Nov 2020 01:46:07 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 03D932225D 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 B13FB6E8DD; Sat, 14 Nov 2020 01:45:50 +0000 (UTC) Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id 00A266E8A4 for ; Sat, 14 Nov 2020 01:45:40 +0000 (UTC) IronPort-SDR: vyOtjeuVYj34Abevin5UCLab4qR6F0SPRFr4411oxFW1VeTb8tUhNelUAlcAoLT8eLXDi3UFdB 6FzQ0VGi9sQg== X-IronPort-AV: E=McAfee;i="6000,8403,9804"; a="158332221" X-IronPort-AV: E=Sophos;i="5.77,477,1596524400"; d="scan'208";a="158332221" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Nov 2020 17:45:39 -0800 IronPort-SDR: kpXiivI6h4uCk86V5U+blYBcVXeENAXf86SM9I813RmcXxQcyyjQEVPS+Y/pMsTr/9n905DHmp W5AsvGYw6L7Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,477,1596524400"; d="scan'208";a="361524774" Received: from sean-virtualbox.fm.intel.com ([10.105.158.96]) by fmsmga002.fm.intel.com with ESMTP; 13 Nov 2020 17:45:38 -0800 From: Sean Z Huang To: Intel-gfx@lists.freedesktop.org Date: Fri, 13 Nov 2020 17:45:19 -0800 Message-Id: <20201114014537.25495-9-sean.z.huang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201114014537.25495-1-sean.z.huang@intel.com> References: <20201114014537.25495-1-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: , Cc: "Huang, Sean Z" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: "Huang, Sean Z" 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 3dd5a9e3926b..fd5d10e71a27 100644 --- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c @@ -49,6 +49,16 @@ static int pxp_reg_write(struct drm_i915_private *i915, u32 offset, u32 regval) return err; } +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. @@ -86,6 +96,101 @@ 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. */ -- 2.17.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx