From patchwork Fri Oct 19 12:15:38 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Philipp Zabel X-Patchwork-Id: 10649165 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 44D72109C for ; Fri, 19 Oct 2018 12:15:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3565628AB1 for ; Fri, 19 Oct 2018 12:15:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2A48D28AB7; Fri, 19 Oct 2018 12:15:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C75A628AB1 for ; Fri, 19 Oct 2018 12:15:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727635AbeJSUVg (ORCPT ); Fri, 19 Oct 2018 16:21:36 -0400 Received: from metis.ext.pengutronix.de ([85.220.165.71]:35197 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727631AbeJSUVg (ORCPT ); Fri, 19 Oct 2018 16:21:36 -0400 Received: from lupine.hi.pengutronix.de ([2001:67c:670:100:3ad5:47ff:feaf:1a17] helo=lupine.pengutronix.de.) by metis.ext.pengutronix.de with esmtp (Exim 4.89) (envelope-from ) id 1gDTgt-0007Oc-NZ; Fri, 19 Oct 2018 14:15:43 +0200 From: Philipp Zabel To: linux-media@vger.kernel.org, Steve Longerbeam Cc: Nicolas Dufresne , Tim Harvey , kernel@pengutronix.de Subject: [PATCH v4 21/22] gpu: ipu-v3: image-convert: disable double buffering if necessary Date: Fri, 19 Oct 2018 14:15:38 +0200 Message-Id: <20181019121539.12778-22-p.zabel@pengutronix.de> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20181019121539.12778-1-p.zabel@pengutronix.de> References: <20181019121539.12778-1-p.zabel@pengutronix.de> X-SA-Exim-Connect-IP: 2001:67c:670:100:3ad5:47ff:feaf:1a17 X-SA-Exim-Mail-From: p.zabel@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-media@vger.kernel.org Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Double-buffering only works if tile sizes are the same and the resizing coefficient does not change between tiles, even for non-planar formats. Signed-off-by: Philipp Zabel --- No changes since v3. --- drivers/gpu/ipu-v3/ipu-image-convert.c | 27 ++++++++++++++++++++++++-- 1 file changed, 25 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/ipu-v3/ipu-image-convert.c b/drivers/gpu/ipu-v3/ipu-image-convert.c index 91fe8f1672b4..3e73494d5930 100644 --- a/drivers/gpu/ipu-v3/ipu-image-convert.c +++ b/drivers/gpu/ipu-v3/ipu-image-convert.c @@ -1990,6 +1990,7 @@ ipu_image_convert_prepare(struct ipu_soc *ipu, enum ipu_ic_task ic_task, struct ipu_image_convert_chan *chan; struct ipu_image_convert_ctx *ctx; unsigned long flags; + unsigned int i; bool get_res; int ret; @@ -2077,15 +2078,37 @@ ipu_image_convert_prepare(struct ipu_soc *ipu, enum ipu_ic_task ic_task, * for every tile, and therefore would have to be updated for * each buffer which is not possible. So double-buffering is * impossible when either the source or destination images are - * a planar format (YUV420, YUV422P, etc.). + * a planar format (YUV420, YUV422P, etc.). Further, differently + * sized tiles or different resizing coefficients per tile + * prevent double-buffering as well. */ ctx->double_buffering = (ctx->num_tiles > 1 && !s_image->fmt->planar && !d_image->fmt->planar); + for (i = 1; i < ctx->num_tiles; i++) { + if (ctx->in.tile[i].width != ctx->in.tile[0].width || + ctx->in.tile[i].height != ctx->in.tile[0].height || + ctx->out.tile[i].width != ctx->out.tile[0].width || + ctx->out.tile[i].height != ctx->out.tile[0].height) { + ctx->double_buffering = false; + break; + } + } + for (i = 1; i < ctx->in.num_cols; i++) { + if (ctx->resize_coeffs_h[i] != ctx->resize_coeffs_h[0]) { + ctx->double_buffering = false; + break; + } + } + for (i = 1; i < ctx->in.num_rows; i++) { + if (ctx->resize_coeffs_v[i] != ctx->resize_coeffs_v[0]) { + ctx->double_buffering = false; + break; + } + } if (ipu_rot_mode_is_irt(ctx->rot_mode)) { unsigned long intermediate_size = d_image->tile[0].size; - unsigned int i; for (i = 1; i < ctx->num_tiles; i++) { if (d_image->tile[i].size > intermediate_size)