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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 05FEAC07E96 for ; Wed, 14 Jul 2021 03:15:59 +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 C377B613AA for ; Wed, 14 Jul 2021 03:15:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C377B613AA 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 C55E86E158; Wed, 14 Jul 2021 03:15:52 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 90ED56E158 for ; Wed, 14 Jul 2021 03:15:51 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10044"; a="210256244" X-IronPort-AV: E=Sophos;i="5.84,238,1620716400"; d="scan'208";a="210256244" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Jul 2021 20:15:50 -0700 X-IronPort-AV: E=Sophos;i="5.84,238,1620716400"; d="scan'208";a="494031447" Received: from mdroper-desk1.fm.intel.com ([10.1.27.134]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Jul 2021 20:15:50 -0700 From: Matt Roper To: intel-gfx@lists.freedesktop.org Date: Tue, 13 Jul 2021 20:14:54 -0700 Message-Id: <20210714031540.3539704-5-matthew.d.roper@intel.com> X-Mailer: git-send-email 2.25.4 In-Reply-To: <20210714031540.3539704-1-matthew.d.roper@intel.com> References: <20210714031540.3539704-1-matthew.d.roper@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 04/50] drm/i915/gen12: Use fuse info to enable SFC 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: Lucas De Marchi Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Venkata Sandeep Dhanalakota In Gen12 there are various fuse combinations and in each configuration vdbox engine may be connected to SFC depending on which engines are available, so we need to set the SFC capability based on fuse value from the hardware. Even numbered physical instance always have SFC, odd numbered physical instances have SFC only if previous even instance is fused off. v2: - Minor style & typo fixes (Tvrtko) - Drop an unwanted 'inline' (Tvrtko) Bspec: 48028 Cc: Tvrtko Ursulin Cc: Daniele Ceraolo Spurio Signed-off-by: Venkata Sandeep Dhanalakota Signed-off-by: Matt Roper Reviewed-by: Lucas De Marchi --- drivers/gpu/drm/i915/gt/intel_engine_cs.c | 30 ++++++++++++++++++----- 1 file changed, 24 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c index 5cfeb91d1b7b..3f8013612a08 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c @@ -442,6 +442,28 @@ void intel_engines_free(struct intel_gt *gt) } } +static +bool gen11_vdbox_has_sfc(struct drm_i915_private *i915, + unsigned int physical_vdbox, + unsigned int logical_vdbox, u16 vdbox_mask) +{ + /* + * In Gen11, only even numbered logical VDBOXes are hooked + * up to an SFC (Scaler & Format Converter) unit. + * In Gen12, Even numbered physical instance always are connected + * to an SFC. Odd numbered physical instances have SFC only if + * previous even instance is fused off. + */ + if (GRAPHICS_VER(i915) == 12) + return (physical_vdbox % 2 == 0) || + !(BIT(physical_vdbox - 1) & vdbox_mask); + else if (GRAPHICS_VER(i915) == 11) + return logical_vdbox % 2 == 0; + + MISSING_CASE(GRAPHICS_VER(i915)); + return false; +} + /* * Determine which engines are fused off in our particular hardware. * Note that we have a catch-22 situation where we need to be able to access @@ -493,13 +515,9 @@ static intel_engine_mask_t init_engine_mask(struct intel_gt *gt) continue; } - /* - * In Gen11, only even numbered logical VDBOXes are - * hooked up to an SFC (Scaler & Format Converter) unit. - * In TGL each VDBOX has access to an SFC. - */ - if (GRAPHICS_VER(i915) >= 12 || logical_vdbox++ % 2 == 0) + if (gen11_vdbox_has_sfc(i915, i, logical_vdbox, vdbox_mask)) gt->info.vdbox_sfc_access |= BIT(i); + logical_vdbox++; } drm_dbg(&i915->drm, "vdbox enable: %04x, instances: %04lx\n", vdbox_mask, VDBOX_MASK(gt)); -- 2.25.4 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx