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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 7651FC7EE2A for ; Mon, 22 May 2023 11:59:43 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2C36A10E2F1; Mon, 22 May 2023 11:59:42 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0CDFA10E011; Mon, 22 May 2023 11:59:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1684756779; x=1716292779; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=5v2npK7RTLOPI1BrhrscqTvWXKFJqZFqHFfXMPAdUt0=; b=XNTGe/wZWuyuLwbndzr+ohLNKvwghs/+DiHJBCHckqO8qGNS7RsE21u8 CRTzUyFdYU81tP0Gp0ZxckOyCi0Dcb7+Ek+dVwCWvHTdOPGI6TtTMXKxE MIuMLgVpV+NEAjANJcpCmDugJ9+7CdoQVFto7qgog9xVBZZOVAH5QXaAK fUwcxg4k3PJODI4Llc7nCcA9dISVGLTQ/eW2XFDQrXdMIlSCDZ0qQXuwN gjWUrk7se51xxZsxbO2kbohLAEv8/hK1U2nlT8LoQVghWmhGFxIuhVVJ1 3G1VnIcpbKAUIN/GuC0dKXbRwWvjCcQ3BaK1ik3ci+FiBpzmX/Qt6Q0NU Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10717"; a="351749717" X-IronPort-AV: E=Sophos;i="6.00,184,1681196400"; d="scan'208";a="351749717" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 May 2023 04:59:38 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10717"; a="793261520" X-IronPort-AV: E=Sophos;i="6.00,184,1681196400"; d="scan'208";a="793261520" Received: from tjepsen-mobl.amr.corp.intel.com (HELO localhost.localdomain) ([10.252.45.96]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 May 2023 04:59:36 -0700 From: Tvrtko Ursulin To: Intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Date: Mon, 22 May 2023 12:59:25 +0100 Message-Id: <20230522115928.588793-1-tvrtko.ursulin@linux.intel.com> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [Intel-gfx] [PATCH 1/4] drm/i915: Move setting of rps thresholds to init 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: Rodrigo Vivi Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Tvrtko Ursulin Since 36d516be867c ("drm/i915/gt: Switch to manual evaluation of RPS") thresholds are invariant so lets move their setting to init time. Signed-off-by: Tvrtko Ursulin Cc: Rodrigo Vivi --- drivers/gpu/drm/i915/gt/intel_rps.c | 27 ++++++++++++++++----------- 1 file changed, 16 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/intel_rps.c b/drivers/gpu/drm/i915/gt/intel_rps.c index e68a99205599..791097eb9bfd 100644 --- a/drivers/gpu/drm/i915/gt/intel_rps.c +++ b/drivers/gpu/drm/i915/gt/intel_rps.c @@ -671,7 +671,6 @@ static void rps_set_power(struct intel_rps *rps, int new_power) { struct intel_gt *gt = rps_to_gt(rps); struct intel_uncore *uncore = gt->uncore; - u32 threshold_up = 0, threshold_down = 0; /* in % */ u32 ei_up = 0, ei_down = 0; lockdep_assert_held(&rps->power.mutex); @@ -679,9 +678,6 @@ static void rps_set_power(struct intel_rps *rps, int new_power) if (new_power == rps->power.mode) return; - threshold_up = 95; - threshold_down = 85; - /* Note the units here are not exactly 1us, but 1280ns. */ switch (new_power) { case LOW_POWER: @@ -708,17 +704,22 @@ static void rps_set_power(struct intel_rps *rps, int new_power) GT_TRACE(gt, "changing power mode [%d], up %d%% @ %dus, down %d%% @ %dus\n", - new_power, threshold_up, ei_up, threshold_down, ei_down); + new_power, + rps->power.up_threshold, ei_up, + rps->power.down_threshold, ei_down); set(uncore, GEN6_RP_UP_EI, intel_gt_ns_to_pm_interval(gt, ei_up * 1000)); set(uncore, GEN6_RP_UP_THRESHOLD, - intel_gt_ns_to_pm_interval(gt, ei_up * threshold_up * 10)); + intel_gt_ns_to_pm_interval(gt, + ei_up * rps->power.up_threshold * 10)); set(uncore, GEN6_RP_DOWN_EI, intel_gt_ns_to_pm_interval(gt, ei_down * 1000)); set(uncore, GEN6_RP_DOWN_THRESHOLD, - intel_gt_ns_to_pm_interval(gt, ei_down * threshold_down * 10)); + intel_gt_ns_to_pm_interval(gt, + ei_down * + rps->power.down_threshold * 10)); set(uncore, GEN6_RP_CONTROL, (GRAPHICS_VER(gt->i915) > 9 ? 0 : GEN6_RP_MEDIA_TURBO) | @@ -730,8 +731,6 @@ static void rps_set_power(struct intel_rps *rps, int new_power) skip_hw_write: rps->power.mode = new_power; - rps->power.up_threshold = threshold_up; - rps->power.down_threshold = threshold_down; } static void gen6_rps_set_thresholds(struct intel_rps *rps, u8 val) @@ -1557,10 +1556,12 @@ void intel_rps_enable(struct intel_rps *rps) return; GT_TRACE(rps_to_gt(rps), - "min:%x, max:%x, freq:[%d, %d]\n", + "min:%x, max:%x, freq:[%d, %d], thresholds:[%u, %u]\n", rps->min_freq, rps->max_freq, intel_gpu_freq(rps, rps->min_freq), - intel_gpu_freq(rps, rps->max_freq)); + intel_gpu_freq(rps, rps->max_freq), + rps->power.up_threshold, + rps->power.down_threshold); GEM_BUG_ON(rps->max_freq < rps->min_freq); GEM_BUG_ON(rps->idle_freq > rps->max_freq); @@ -2013,6 +2014,10 @@ void intel_rps_init(struct intel_rps *rps) } } + /* Set default thresholds in % */ + rps->power.up_threshold = 95; + rps->power.down_threshold = 85; + /* Finally allow us to boost to max by default */ rps->boost_freq = rps->max_freq; rps->idle_freq = rps->min_freq; -- 2.39.2