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 7B44CCCD194 for ; Wed, 15 Oct 2025 14:20:27 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4302010E80F; Wed, 15 Oct 2025 14:20:27 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="Cy8GxnIY"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.11]) by gabe.freedesktop.org (Postfix) with ESMTPS id DC32810E82B for ; Wed, 15 Oct 2025 14:20:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1760538025; x=1792074025; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=mwAhyUSV52VTEe9+SbnkQKa6RMaUCSWW82YCL+JXWUc=; b=Cy8GxnIYZREg1tMxaCyx0T1QJck00ef05Ig2APPfutpQdwx2kyn86dA1 lwjXWg//d/DNx8VTQA0obLVIV9TGCNSWUFa/qVUuxOw+qThK8FdEGf7LA LcId+JtcETVIW2r4Tem+Jrw5rfbilOx8/LE0d57ZhkLs3n4wl6nSzBOCe 8OKiDrepJSmGoavBJ9yv3H7N4FGIHKHcybJYaIBVJqGok0xm6Mwv1bJHg zypw5Sr4m6ASvvBfZGYfDWv8/J/7HJ2DRw5pfJHuJJRc3pG/N6uAq0ebT K37ULHL9KHmBhKWBDm3cqy6gCda2XczlvZ0+LmAN29DbM5qp4zP0UMhLb Q==; X-CSE-ConnectionGUID: WOKx5pveQWyZALxf/0JwxA== X-CSE-MsgGUID: pSh6dS7ES6qNNuimAhitHw== X-IronPort-AV: E=McAfee;i="6800,10657,11583"; a="72990279" X-IronPort-AV: E=Sophos;i="6.19,231,1754982000"; d="scan'208";a="72990279" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Oct 2025 07:20:24 -0700 X-CSE-ConnectionGUID: B7bf7rCNSGqNKrdGbFEQNQ== X-CSE-MsgGUID: UkvDUbc7R+uA9PMDZLHmpA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,231,1754982000"; d="scan'208";a="181740960" Received: from bergbenj-mobl1.ger.corp.intel.com (HELO mwauld-desk.intel.com) ([10.245.245.90]) by orviesa009-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Oct 2025 07:20:23 -0700 From: Matthew Auld To: intel-xe@lists.freedesktop.org Cc: Matthew Brost Subject: [PATCH 2/6] drm/xe/migrate: fix chunk handling for 2M page emit Date: Wed, 15 Oct 2025 15:19:32 +0100 Message-ID: <20251015141929.123637-10-matthew.auld@intel.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251015141929.123637-8-matthew.auld@intel.com> References: <20251015141929.123637-8-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" On systems with PAGE_SIZE > 4K the chunk will likely be rounded down to zero, if say we have single 2M page, so one huge pte, since we also try to align the chunk to PAGE_SIZE / XE_PAGE_SIZE, which will be 16 on 64K systems. Make the ALIGN_DOWN conditional for 4K PTEs where we can encounter gpu_page_size < PAGE_SIZE. Signed-off-by: Matthew Auld Cc: Matthew Brost --- drivers/gpu/drm/xe/xe_migrate.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/xe/xe_migrate.c b/drivers/gpu/drm/xe/xe_migrate.c index ff8e442bf519..a4861ede6cef 100644 --- a/drivers/gpu/drm/xe/xe_migrate.c +++ b/drivers/gpu/drm/xe/xe_migrate.c @@ -1804,7 +1804,9 @@ static void build_pt_update_batch_sram(struct xe_migrate *m, while (ptes) { u32 chunk = min(MAX_PTE_PER_SDI, ptes); - chunk = ALIGN_DOWN(chunk, PAGE_SIZE / XE_PAGE_SIZE); + if (!level) + chunk = ALIGN_DOWN(chunk, PAGE_SIZE / XE_PAGE_SIZE); + bb->cs[bb->len++] = MI_STORE_DATA_IMM | MI_SDI_NUM_QW(chunk); bb->cs[bb->len++] = pt_offset; bb->cs[bb->len++] = 0; -- 2.51.0