From patchwork Mon Aug 19 21:18:46 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Summers, Stuart" X-Patchwork-Id: 11101963 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2F4531395 for ; Mon, 19 Aug 2019 21:18:19 +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 196E2214DA for ; Mon, 19 Aug 2019 21:18:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 196E2214DA 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 0D78D6E2D2; Mon, 19 Aug 2019 21:18:15 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 31B356E29E for ; Mon, 19 Aug 2019 21:17:59 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 19 Aug 2019 14:17:58 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,406,1559545200"; d="scan'208";a="329496193" Received: from jssummer-xeon.ra.intel.com ([10.23.184.90]) by orsmga004.jf.intel.com with ESMTP; 19 Aug 2019 14:17:57 -0700 From: Stuart Summers To: intel-gfx@lists.freedesktop.org Date: Mon, 19 Aug 2019 14:18:46 -0700 Message-Id: <20190819211849.34085-7-stuart.summers@intel.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190819211849.34085-1-stuart.summers@intel.com> References: <20190819211849.34085-1-stuart.summers@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 6/9] drm/i915: Add function to determine if a slice has a subslice X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 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" Add a new function to determine whether a particular slice has a given subslice. Signed-off-by: Stuart Summers --- drivers/gpu/drm/i915/gt/intel_sseu.h | 10 ++++++++++ drivers/gpu/drm/i915/intel_device_info.c | 9 ++++----- 2 files changed, 14 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/intel_sseu.h b/drivers/gpu/drm/i915/gt/intel_sseu.h index 2261d4e7d98b..0ecc1c35a7a1 100644 --- a/drivers/gpu/drm/i915/gt/intel_sseu.h +++ b/drivers/gpu/drm/i915/gt/intel_sseu.h @@ -66,6 +66,16 @@ intel_sseu_from_device_info(const struct sseu_dev_info *sseu) return value; } +static inline bool +intel_sseu_has_subslice(const struct sseu_dev_info *sseu, int slice, + int subslice) +{ + u8 mask = sseu->subslice_mask[slice * sseu->ss_stride + + subslice / BITS_PER_BYTE]; + + return mask & BIT(subslice % BITS_PER_BYTE); +} + void intel_sseu_set_info(struct sseu_dev_info *sseu, u8 max_slices, u8 max_subslices, u8 max_eus_per_subslice); diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c index 2320613a51ac..ff3d6508fd17 100644 --- a/drivers/gpu/drm/i915/intel_device_info.c +++ b/drivers/gpu/drm/i915/intel_device_info.c @@ -210,10 +210,9 @@ static void gen11_sseu_info_init(struct drm_i915_private *dev_priv) intel_sseu_set_subslices(sseu, s, (ss_en >> ss_idx) & ss_en_mask); - for (ss = 0; ss < sseu->max_subslices; ss++) { - if (sseu->subslice_mask[s] & BIT(ss)) + for (ss = 0; ss < sseu->max_subslices; ss++) + if (intel_sseu_has_subslice(sseu, s, ss)) sseu_set_eus(sseu, s, ss, eu_en); - } } } sseu->eu_per_subslice = hweight8(eu_en); @@ -395,7 +394,7 @@ static void gen9_sseu_info_init(struct drm_i915_private *dev_priv) int eu_per_ss; u8 eu_disabled_mask; - if (!(sseu->subslice_mask[s] & BIT(ss))) + if (!intel_sseu_has_subslice(sseu, s, ss)) /* skip disabled subslice */ continue; @@ -501,7 +500,7 @@ static void broadwell_sseu_info_init(struct drm_i915_private *dev_priv) u8 eu_disabled_mask; u32 n_disabled; - if (!(sseu->subslice_mask[s] & BIT(ss))) + if (!intel_sseu_has_subslice(sseu, s, ss)) /* skip disabled subslice */ continue;