From patchwork Thu Jul 11 13:53:37 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Tvrtko Ursulin X-Patchwork-Id: 13730748 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 7C01FC3DA41 for ; Thu, 11 Jul 2024 13:53:56 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7444910EA95; Thu, 11 Jul 2024 13:53:52 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=igalia.com header.i=@igalia.com header.b="aas4d2Cr"; dkim-atps=neutral Received: from fanzine2.igalia.com (fanzine.igalia.com [178.60.130.6]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6B59010EA8F for ; Thu, 11 Jul 2024 13:53:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=bG8Hn0nyFsy1e+9j6IqHsRd8HSaoD67HlXUAWFMDVd0=; b=aas4d2Cr7XUpSYlVOu+UiJsk8d HfCE2qyhAV2YPaDPEGdNBgcoAaZqm0FekA7UuTRnxNh5FFxz5QDtvohQRvIqh33v/jxAAzgM/Vpbi AkaJSfzvtG0PLoLac0W79JCyQcDOvZ94FETVTICarG2pXIuHOL17By5sTjl6zfH4XO0lcMF6IWqiD jMlJNdVSY8B453mHX5/jBmPRknYYyu4vp64RFxqNXQ/h4eSpTk8buctcqbaSfAZTipPs3jxBio0pW kzw1neDTHYRnWa2NPwMM5PNTbcnTzFsb4BYFMrQ881gSS27DBDyjMuVBAPELw+zBHS6a4oG6efEPR omfUL5xg==; Received: from [84.69.19.168] (helo=localhost) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1sRuF1-00Difa-Nm; Thu, 11 Jul 2024 15:53:47 +0200 From: Tvrtko Ursulin To: dri-devel@lists.freedesktop.org Cc: =?utf-8?q?Ma=C3=ADra_Canal?= , kernel-dev@igalia.com, Tvrtko Ursulin , Iago Toral Quiroga Subject: [PATCH 08/11] drm/v3d: Do not use intermediate storage when copying performance query results Date: Thu, 11 Jul 2024 14:53:37 +0100 Message-ID: <20240711135340.84617-9-tursulin@igalia.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240711135340.84617-1-tursulin@igalia.com> References: <20240711135340.84617-1-tursulin@igalia.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Tvrtko Ursulin Removing the intermediate buffer removes the last use of the V3D_MAX_COUNTERS define, which will enable further driver cleanup. While at it pull the 32 vs 64 bit copying decision outside the loop in order to reduce the number of conditional instructions. Signed-off-by: Tvrtko Ursulin Reviewed-by: Iago Toral Quiroga Reviewed-by: Maíra Canal --- drivers/gpu/drm/v3d/v3d_sched.c | 59 +++++++++++++++++++++------------ 1 file changed, 37 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/v3d/v3d_sched.c b/drivers/gpu/drm/v3d/v3d_sched.c index 7b2195ba4248..d193072703f3 100644 --- a/drivers/gpu/drm/v3d/v3d_sched.c +++ b/drivers/gpu/drm/v3d/v3d_sched.c @@ -421,18 +421,23 @@ v3d_reset_timestamp_queries(struct v3d_cpu_job *job) v3d_put_bo_vaddr(bo); } +static void write_to_buffer_32(u32 *dst, unsigned int idx, u32 value) +{ + dst[idx] = value; +} + +static void write_to_buffer_64(u64 *dst, unsigned int idx, u64 value) +{ + dst[idx] = value; +} + static void -write_to_buffer(void *dst, u32 idx, bool do_64bit, u64 value) +write_to_buffer(void *dst, unsigned int idx, bool do_64bit, u64 value) { - if (do_64bit) { - u64 *dst64 = (u64 *)dst; - - dst64[idx] = value; - } else { - u32 *dst32 = (u32 *)dst; - - dst32[idx] = (u32)value; - } + if (do_64bit) + write_to_buffer_64(dst, idx, value); + else + write_to_buffer_32(dst, idx, value); } static void @@ -505,18 +510,24 @@ v3d_reset_performance_queries(struct v3d_cpu_job *job) } static void -v3d_write_performance_query_result(struct v3d_cpu_job *job, void *data, u32 query) +v3d_write_performance_query_result(struct v3d_cpu_job *job, void *data, + unsigned int query) { - struct v3d_performance_query_info *performance_query = &job->performance_query; - struct v3d_copy_query_results_info *copy = &job->copy; + struct v3d_performance_query_info *performance_query = + &job->performance_query; struct v3d_file_priv *v3d_priv = job->base.file->driver_priv; + struct v3d_performance_query *perf_query = + &performance_query->queries[query]; struct v3d_dev *v3d = job->base.v3d; - struct v3d_perfmon *perfmon; - u64 counter_values[V3D_MAX_COUNTERS]; + unsigned int i, j, offset; + + for (i = 0, offset = 0; + i < performance_query->nperfmons; + i++, offset += DRM_V3D_MAX_PERF_COUNTERS) { + struct v3d_perfmon *perfmon; - for (int i = 0; i < performance_query->nperfmons; i++) { perfmon = v3d_perfmon_find(v3d_priv, - performance_query->queries[query].kperfmon_ids[i]); + perf_query->kperfmon_ids[i]); if (!perfmon) { DRM_DEBUG("Failed to find perfmon."); continue; @@ -524,14 +535,18 @@ v3d_write_performance_query_result(struct v3d_cpu_job *job, void *data, u32 quer v3d_perfmon_stop(v3d, perfmon, true); - memcpy(&counter_values[i * DRM_V3D_MAX_PERF_COUNTERS], perfmon->values, - perfmon->ncounters * sizeof(u64)); + if (job->copy.do_64bit) { + for (j = 0; j < perfmon->ncounters; j++) + write_to_buffer_64(data, offset + j, + perfmon->values[j]); + } else { + for (j = 0; j < perfmon->ncounters; j++) + write_to_buffer_32(data, offset + j, + perfmon->values[j]); + } v3d_perfmon_put(perfmon); } - - for (int i = 0; i < performance_query->ncounters; i++) - write_to_buffer(data, i, copy->do_64bit, counter_values[i]); } static void