From patchwork Tue Nov 2 01:26:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinay Belgaumkar X-Patchwork-Id: 12597685 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 34D35C433F5 for ; Tue, 2 Nov 2021 01:26:47 +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 F0D9A610E5 for ; Tue, 2 Nov 2021 01:26:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org F0D9A610E5 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E16C36F55C; Tue, 2 Nov 2021 01:26:40 +0000 (UTC) Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id C5C6A6F55B; Tue, 2 Nov 2021 01:26:38 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10155"; a="231117032" X-IronPort-AV: E=Sophos;i="5.87,201,1631602800"; d="scan'208";a="231117032" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Nov 2021 18:26:38 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.87,201,1631602800"; d="scan'208";a="531385645" Received: from vbelgaum-ubuntu.fm.intel.com ([10.1.27.27]) by orsmga001.jf.intel.com with ESMTP; 01 Nov 2021 18:26:37 -0700 From: Vinay Belgaumkar To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Date: Mon, 1 Nov 2021 18:26:05 -0700 Message-Id: <20211102012608.8609-1-vinay.belgaumkar@intel.com> X-Mailer: git-send-email 2.25.0 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v3 0/3] drm/i915/guc/slpc: Implement waitboost for SLPC 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" Waitboost is a legacy feature implemented in the Host Turbo algorithm. This patch set implements it for the SLPC path. A boost can happen when a request is waiting for an unmet dependency. GT frequency gets temporarily bumped to boost freq to allow the previous request to finish quickly. We achieve this on SLPC by setting the min frequency, SLPC will set that as the requested frequency. The boost will occur through a worker thread that will be scheduled when the required conditions are met. Like before, boost frequency is configurable through sysfs, so we can adjust it to any specific value as long as it is between [min, RP0]. v2: Add a worker thread to perform freq boost. v3: Address comments (Ashutosh) Cc: Ashutosh Dixit Signed-off-by: Vinay Belgaumkar Vinay Belgaumkar (3): drm/i915/guc/slpc: Define and initialize boost frequency drm/i915/guc/slpc: Add waitboost functionality for SLPC drm/i915/guc/slpc: Update boost sysfs hooks for SLPC drivers/gpu/drm/i915/gt/intel_rps.c | 72 +++++++++ drivers/gpu/drm/i915/gt/intel_rps.h | 3 + drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c | 151 +++++++++++++++--- drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h | 3 + .../gpu/drm/i915/gt/uc/intel_guc_slpc_types.h | 13 ++ drivers/gpu/drm/i915/i915_request.c | 2 +- drivers/gpu/drm/i915/i915_sysfs.c | 19 +-- 7 files changed, 223 insertions(+), 40 deletions(-) Reviewed-by: Ashutosh Dixit