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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 52433E7719D for ; Thu, 9 Jan 2025 16:06:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=lGtJ9CriS+ashHM5ezN8GwKe3wTrnVd2+hdY+vVFtuM=; b=senyDduqdgTNiqyieiiAV2OpxP eDWlWJiqbp6PgzoG4AONRYOHRLU6ClTRplVB2XAwCc+tRpbWVsbyGm+B4ZCI9S4MPzopRL8UG01cO v9Z4nByY4Ob19T9AtFRNs+OmpScwmapdajYpscI1kX532/kPxUcE4hOpNbGPtJwQ9fSBpegbAiRcu 6lGcyytM8WDSj1S7apCcqjjNY2SPEQcDksZOt0VucIQiJMwHB30m9nhLoPF0rFCcZ96Ahyh+u3WvQ +l/2X8xvYY5iHyV3+dR8b4R6GpVz514UmAEQ+p2SoDNMco/Z0t+wxH5d48PrSZLHeB/Lw/2NRypG7 Y+4Ca7pQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tVv30-0000000CbLj-1JZm; Thu, 09 Jan 2025 16:06:14 +0000 Received: from mgamail.intel.com ([192.198.163.7]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tVv2y-0000000CbKU-1dQl; Thu, 09 Jan 2025 16:06:13 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1736438772; x=1767974772; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=p4XkuorIpNoSEU2HBpQ1O27DvwV5LvulfkLyMZfyAfg=; b=kc6YdHA+f+SZjxp8KzB62WRPem4bWEcS8YiNIy7PHCFhyaofuvB7NV2f IME/SDVAnup+dTqH7ZbtMCq9fv9J0SuKqWwJXS7kJ4vCMYyQd6QJ+rAGJ HtU12PcqSeg9VB8k6y6wHHl1R6cTpk8jd36TA0E7vtNxn3Q7qAe6ASH+K Cy2TYu9HinHmKPKVsP9IBl9saTzUeXYmvyHiUAo2uiGZhkupQ80VV3PO8 y5YyooVO2/vCmT5qwGtIJeirTxnlRnELWKQp69/r9hKG2BnTrOXsJApF3 tA95IbVgsudvFVzQa72Wt0VX64Ain9vpUzJCnQ/LwOaQ763e6zidg1JzE g==; X-CSE-ConnectionGUID: 5J85ZrgxR/GzSngWDu1I4Q== X-CSE-MsgGUID: oDq0zriSQjijNQ2WzDXSrA== X-IronPort-AV: E=McAfee;i="6700,10204,11310"; a="62086134" X-IronPort-AV: E=Sophos;i="6.12,301,1728975600"; d="scan'208";a="62086134" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jan 2025 08:05:55 -0800 X-CSE-ConnectionGUID: gYM7jUeoQau2+oJbNyjiWQ== X-CSE-MsgGUID: 8PkbOk3sQpqIzHIL0w463A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,301,1728975600"; d="scan'208";a="103967271" Received: from bergbenj-mobl1.ger.corp.intel.com (HELO [10.245.245.241]) ([10.245.245.241]) by fmviesa010-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jan 2025 08:05:50 -0800 Message-ID: <91c904f8-ba47-4595-be65-6fb57dcc9c64@intel.com> Date: Thu, 9 Jan 2025 16:05:47 +0000 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 23/25] drm/xe: Compute dumb-buffer sizes with drm_mode_size_dumb() To: Thomas Zimmermann , maarten.lankhorst@linux.intel.com, mripard@kernel.org, airlied@gmail.com, simona@ffwll.ch Cc: dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, freedreno@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, imx@lists.linux.dev, linux-samsung-soc@vger.kernel.org, nouveau@lists.freedesktop.org, virtualization@lists.linux.dev, spice-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-tegra@vger.kernel.org, intel-xe@lists.freedesktop.org, xen-devel@lists.xenproject.org, Lucas De Marchi , =?UTF-8?Q?Thomas_Hellstr=C3=B6m?= , Rodrigo Vivi References: <20250109150310.219442-1-tzimmermann@suse.de> <20250109150310.219442-24-tzimmermann@suse.de> Content-Language: en-GB From: Matthew Auld In-Reply-To: <20250109150310.219442-24-tzimmermann@suse.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250109_080612_470877_B4D04B93 X-CRM114-Status: GOOD ( 14.50 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On 09/01/2025 14:57, Thomas Zimmermann wrote: > Call drm_mode_size_dumb() to compute dumb-buffer scanline pitch > and buffer size. Align the pitch to a multiple of 8. Align the > buffer size according to hardware requirements. > > Signed-off-by: Thomas Zimmermann > Cc: Lucas De Marchi > Cc: "Thomas Hellström" > Cc: Rodrigo Vivi > --- > drivers/gpu/drm/xe/xe_bo.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/drivers/gpu/drm/xe/xe_bo.c b/drivers/gpu/drm/xe/xe_bo.c > index e6c896ad5602..d75e3c39ab14 100644 > --- a/drivers/gpu/drm/xe/xe_bo.c > +++ b/drivers/gpu/drm/xe/xe_bo.c > @@ -8,6 +8,7 @@ > #include > > #include > +#include > #include > #include > #include > @@ -2535,14 +2536,13 @@ int xe_bo_dumb_create(struct drm_file *file_priv, > struct xe_device *xe = to_xe_device(dev); > struct xe_bo *bo; > uint32_t handle; > - int cpp = DIV_ROUND_UP(args->bpp, 8); > int err; > u32 page_size = max_t(u32, PAGE_SIZE, > xe->info.vram_flags & XE_VRAM_FLAGS_NEED64K ? SZ_64K : SZ_4K); > > - args->pitch = ALIGN(args->width * cpp, 64); > - args->size = ALIGN(mul_u32_u32(args->pitch, args->height), > - page_size); > + err = drm_mode_size_dumb(dev, args, SZ_64, page_size); AFAICT this looks to change the behaviour, where u64 size was technically possible and was allowed given that args->size is u64, but this helper is limiting the size to u32. Is that intentional? If so, we should probably make that clear in the commit message. > + if (err) > + return err; > > bo = xe_bo_create_user(xe, NULL, NULL, args->size, > DRM_XE_GEM_CPU_CACHING_WC,