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 9B06CCCD1BB for ; Wed, 22 Oct 2025 16:39:59 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5B58A10E80A; Wed, 22 Oct 2025 16:39:59 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="KmPoFCsr"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.11]) by gabe.freedesktop.org (Postfix) with ESMTPS id 07FDB10E80E for ; Wed, 22 Oct 2025 16:39:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1761151196; x=1792687196; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=SqB3WQQ9kkxpWFd17N8tG+XT3ACnb2cByknRFVhLmIA=; b=KmPoFCsrr2K82kFii4qoJLrOWjLFBLvLbdhsG57HNZHpD/q9zXjdonaG IG0e0cEAYB/C1FqdYZkM1PbZKLBPlokA+HXPiAVJjQt6XpujGwM6wE+1z V3hxtRrldSX1uwWYEVuiDLighTy81ua2GYQThn7oagShqG2pp0BwVzPUI +QU+6KFBfJTFSaQZoSy2/2UAftPIWFTz/6nGm8ww0oBXxFwDuwpk1+Zoi +36ni22uEfZKEYu5XtpfbgfTBQkRuUEkK6kxS574DJ8vX1LhP3TrRtQNH KrF+VgjYvu2smp0hiJMZKy2RXMI2FpZir6t999mmhruCSxrUu4OtFp6iY g==; X-CSE-ConnectionGUID: VqvxyQ6TSAWGwL4OEICOUA== X-CSE-MsgGUID: Z65YMtWuT06OOWYrTW/Scw== X-IronPort-AV: E=McAfee;i="6800,10657,11586"; a="73911753" X-IronPort-AV: E=Sophos;i="6.19,247,1754982000"; d="scan'208";a="73911753" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Oct 2025 09:39:55 -0700 X-CSE-ConnectionGUID: LUdnARNdTo6ZYsLXcM+TyA== X-CSE-MsgGUID: Znz2KFYjRxapzxsjf8shRw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,247,1754982000"; d="scan'208";a="189043698" Received: from mjarzebo-mobl1.ger.corp.intel.com (HELO mwauld-desk.intel.com) ([10.245.244.63]) by orviesa005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Oct 2025 09:39:55 -0700 From: Matthew Auld To: intel-xe@lists.freedesktop.org Cc: Matthew Brost Subject: [PATCH v3 5/7] drm/xe/migrate: trim batch buffer sizing Date: Wed, 22 Oct 2025 17:38:34 +0100 Message-ID: <20251022163836.191405-6-matthew.auld@intel.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251022163836.191405-1-matthew.auld@intel.com> References: <20251022163836.191405-1-matthew.auld@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" We have an extra two dwords, but it looks like we should only need one for the extra bb_end. Likely this is just leftover from back when the arb handling was moved into the ring programming. Signed-off-by: Matthew Auld Cc: Matthew Brost Reviewed-by: Matthew Brost --- drivers/gpu/drm/xe/xe_migrate.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_migrate.c b/drivers/gpu/drm/xe/xe_migrate.c index fa87e0eddd09..95aefe2e71f5 100644 --- a/drivers/gpu/drm/xe/xe_migrate.c +++ b/drivers/gpu/drm/xe/xe_migrate.c @@ -847,7 +847,7 @@ struct dma_fence *xe_migrate_copy(struct xe_migrate *m, &ccs_it); while (size) { - u32 batch_size = 2; /* arb_clear() + MI_BATCH_BUFFER_END */ + u32 batch_size = 1; /* MI_BATCH_BUFFER_END */ struct xe_sched_job *job; struct xe_bb *bb; u32 flush_flags = 0; @@ -1312,7 +1312,7 @@ struct dma_fence *xe_migrate_clear(struct xe_migrate *m, /* Calculate final sizes and batch size.. */ pte_flags = clear_vram ? PTE_UPDATE_FLAG_IS_VRAM : 0; - batch_size = 2 + + batch_size = 1 + pte_update_size(m, pte_flags, src, &src_it, &clear_L0, &clear_L0_ofs, &clear_L0_pt, clear_bo_data ? emit_clear_cmd_len(gt) : 0, 0, @@ -1876,7 +1876,7 @@ static struct dma_fence *xe_migrate_vram(struct xe_migrate *m, struct xe_device *xe = gt_to_xe(gt); bool use_usm_batch = xe->info.has_usm; struct dma_fence *fence = NULL; - u32 batch_size = 2; + u32 batch_size = 1; u64 src_L0_ofs, dst_L0_ofs; struct xe_sched_job *job; struct xe_bb *bb; -- 2.51.0