From patchwork Mon Mar 7 13:40:37 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 12771879 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 139CCC433F5 for ; Mon, 7 Mar 2022 13:40:34 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6CB0910F0CA; Mon, 7 Mar 2022 13:40:28 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4E17F10F0DB; Mon, 7 Mar 2022 13:40:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1646660427; x=1678196427; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=+H3Rmg1u066jNbQDih/my7Ss2/5LSH9ef3Aex8DDijo=; b=CdBBF84MSQG2o/dOEOsthCtOu3e0ahPj6yQu1DemQ+H7OXq5Hvg40zj2 7m4uvLMBO0fP0fQKmSYIPFmJCMd3/lYsbm98+d0IZcRystWeGvypE9qUU kh1Xkt9SDCSmWt4ZBKI1N56F0PrGCLzdEDDshjuAd/GxciWryj8LR4p8y KHgsr7NgAu8/8uoi++LmjYUY1AFyasr4pfrI/4JTenYH+L+4nITku2MX9 BwmBX1LBjXlorzZ5v/vn2EA0895OSfAjhhW3PeqE4I5AMMeQEoY/MbLZ/ FbrRjKxYScSFN3tKWL44AQTHblSJY+aTui5JwAa7PVZfZkV0H68wR5Q2Z g==; X-IronPort-AV: E=McAfee;i="6200,9189,10278"; a="251963974" X-IronPort-AV: E=Sophos;i="5.90,162,1643702400"; d="scan'208";a="251963974" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Mar 2022 05:40:27 -0800 X-IronPort-AV: E=Sophos;i="5.90,162,1643702400"; d="scan'208";a="643248154" Received: from ramaling-i9x.iind.intel.com ([10.203.144.108]) by orsmga004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Mar 2022 05:40:24 -0800 From: Ramalingam C To: intel-gfx , dri-devel Date: Mon, 7 Mar 2022 19:10:37 +0530 Message-Id: <20220307134038.30525-6-ramalingam.c@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20220307134038.30525-1-ramalingam.c@intel.com> References: <20220307134038.30525-1-ramalingam.c@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v3 5/6] drm/i915/gt: Optimize the migration loop 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: Hellstrom Thomas , Matthew Auld , Chris Wilson Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Move the static calculations out of the loop. Signed-off-by: Ramalingam C --- drivers/gpu/drm/i915/gt/intel_migrate.c | 34 ++++++++++++------------- 1 file changed, 16 insertions(+), 18 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/intel_migrate.c b/drivers/gpu/drm/i915/gt/intel_migrate.c index 05262f1b438e..24e0e73e4a90 100644 --- a/drivers/gpu/drm/i915/gt/intel_migrate.c +++ b/drivers/gpu/drm/i915/gt/intel_migrate.c @@ -556,6 +556,7 @@ intel_context_migrate_copy(struct intel_context *ce, struct i915_request **out) { struct sgt_dma it_src = sg_sgt(src), it_dst = sg_sgt(dst); + u32 src_offset, dst_offset; struct i915_request *rq; int err; @@ -564,8 +565,20 @@ intel_context_migrate_copy(struct intel_context *ce, GEM_BUG_ON(ce->ring->size < SZ_64K); + src_offset = 0; + dst_offset = CHUNK_SZ; + if (HAS_64K_PAGES(ce->engine->i915)) { + GEM_BUG_ON(!src_is_lmem && !dst_is_lmem); + + src_offset = 0; + dst_offset = 0; + if (src_is_lmem) + src_offset = CHUNK_SZ; + if (dst_is_lmem) + dst_offset = 2 * CHUNK_SZ; + } + do { - u32 src_offset, dst_offset; int len; rq = i915_request_create(ce); @@ -593,19 +606,6 @@ intel_context_migrate_copy(struct intel_context *ce, if (err) goto out_rq; - src_offset = 0; - dst_offset = CHUNK_SZ; - if (HAS_64K_PAGES(ce->engine->i915)) { - GEM_BUG_ON(!src_is_lmem && !dst_is_lmem); - - src_offset = 0; - dst_offset = 0; - if (src_is_lmem) - src_offset = CHUNK_SZ; - if (dst_is_lmem) - dst_offset = 2 * CHUNK_SZ; - } - len = emit_pte(rq, &it_src, src_cache_level, src_is_lmem, src_offset, CHUNK_SZ); if (len <= 0) { @@ -615,12 +615,10 @@ intel_context_migrate_copy(struct intel_context *ce, err = emit_pte(rq, &it_dst, dst_cache_level, dst_is_lmem, dst_offset, len); - if (err < 0) - goto out_rq; - if (err < len) { + if (err < len) err = -EINVAL; + if (err < 0) goto out_rq; - } err = rq->engine->emit_flush(rq, EMIT_INVALIDATE); if (err)