From patchwork Sun Aug 8 23:47:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chun-Kuang Hu X-Patchwork-Id: 12425157 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 14CB4C4338F for ; Sun, 8 Aug 2021 23:48:05 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id CC1DD60F0F for ; Sun, 8 Aug 2021 23:48:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org CC1DD60F0F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 795E989904; Sun, 8 Aug 2021 23:47:57 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4043689904 for ; Sun, 8 Aug 2021 23:47:56 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 95FAA60F4B; Sun, 8 Aug 2021 23:47:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1628466476; bh=irCDUoflXrwrU0O7GCvMgdGWeBXXUYACkrzcuuKo/AY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FMXcAu5EM7JgFWHb237ckQQzfPfyJr5XZ+9q+pWFm7kx2NwHfhDPpRl683WqMM1qU 1juvUmx6xH+x9IIq6itTIV9y7ldz6yVWqAIMfrAuro3+hSMGW1NKDc+XSCG1s/fdqR 6Q14UIWpfhlTUelLgp0XK0IBS0m/jOAB9MyiKcPjZ3143EafxdAmOA01xfpa3bz++U 296FhikaurV1KOa65KR2kFTVkBP25f8SIphaF/9tIDRp9MGqVmt5LSor6NUASn1bWb bEbrMSSZ6Z0r6JJz/aLPwcgL3PryeXRH84BegNZBWxCU2bXDtQXbyju0NukqBHzbY5 qjk+F85nfJzgw== From: Chun-Kuang Hu To: Philipp Zabel , David Airlie , Daniel Vetter Cc: Yongqiang Niu , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, Chun-Kuang Hu Subject: [PATCH v2 4/4] drm/mediatek: Add cmdq_handle in mtk_crtc Date: Mon, 9 Aug 2021 07:47:33 +0800 Message-Id: <20210808234733.14782-5-chunkuang.hu@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210808234733.14782-1-chunkuang.hu@kernel.org> References: <20210808234733.14782-1-chunkuang.hu@kernel.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" One mtk_crtc need just one cmdq_handle, so add one cmdq_handle in mtk_crtc to prevent frequently allocation and free of cmdq_handle. Signed-off-by: Chun-Kuang Hu --- drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 28 ++++++++++++++++--------- 1 file changed, 18 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index ad4c1a3a9294..2d9becec04a9 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -54,6 +54,7 @@ struct mtk_drm_crtc { #if IS_REACHABLE(CONFIG_MTK_CMDQ) struct mbox_client cmdq_cl; struct mbox_chan *cmdq_chan; + struct cmdq_pkt cmdq_handle; u32 cmdq_event; u32 cmdq_vblank_cnt; #endif @@ -226,19 +227,16 @@ struct mtk_ddp_comp *mtk_drm_ddp_comp_for_plane(struct drm_crtc *crtc, } #if IS_REACHABLE(CONFIG_MTK_CMDQ) -static struct cmdq_pkt *mtk_drm_cmdq_pkt_create(struct mbox_chan *chan, size_t size) +static int mtk_drm_cmdq_pkt_create(struct mbox_chan *chan, struct cmdq_pkt *pkt, + size_t size) { - struct cmdq_pkt *pkt; struct device *dev; dma_addr_t dma_addr; - pkt = kzalloc(sizeof(*pkt), GFP_KERNEL); - if (!pkt) - return ERR_PTR(-ENOMEM); pkt->va_base = kzalloc(size, GFP_KERNEL); if (!pkt->va_base) { kfree(pkt); - return ERR_PTR(-ENOMEM); + return -ENOMEM; } pkt->buf_size = size; @@ -249,12 +247,12 @@ static struct cmdq_pkt *mtk_drm_cmdq_pkt_create(struct mbox_chan *chan, size_t s dev_err(dev, "dma map failed, size=%u\n", (u32)(u64)size); kfree(pkt->va_base); kfree(pkt); - return ERR_PTR(-ENOMEM); + return -ENOMEM; } pkt->pa_base = dma_addr; - return pkt; + return 0; } static void mtk_drm_cmdq_pkt_destroy(struct mbox_chan *chan, struct cmdq_pkt *pkt) @@ -477,7 +475,7 @@ static void mtk_drm_crtc_update_config(struct mtk_drm_crtc *mtk_crtc, bool needs_vblank) { #if IS_REACHABLE(CONFIG_MTK_CMDQ) - struct cmdq_pkt *cmdq_handle; + struct cmdq_pkt *cmdq_handle = &mtk_crtc->cmdq_handle; #endif struct drm_crtc *crtc = &mtk_crtc->base; struct mtk_drm_private *priv = crtc->dev->dev_private; @@ -517,7 +515,7 @@ static void mtk_drm_crtc_update_config(struct mtk_drm_crtc *mtk_crtc, #if IS_REACHABLE(CONFIG_MTK_CMDQ) if (mtk_crtc->cmdq_chan) { mbox_flush(mtk_crtc->cmdq_chan, 2000); - cmdq_handle = mtk_drm_cmdq_pkt_create(mtk_crtc->cmdq_chan, PAGE_SIZE); + cmdq_handle->cmd_buf_size = 0; cmdq_pkt_clear_event(cmdq_handle, mtk_crtc->cmdq_event); cmdq_pkt_wfe(cmdq_handle, mtk_crtc->cmdq_event, false); mtk_crtc_ddp_config(crtc, cmdq_handle); @@ -915,6 +913,16 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev, drm_crtc_index(&mtk_crtc->base)); mbox_free_channel(mtk_crtc->cmdq_chan); mtk_crtc->cmdq_chan = NULL; + } else { + ret = mtk_drm_cmdq_pkt_create(mtk_crtc->cmdq_chan, + &mtk_crtc->cmdq_handle, + PAGE_SIZE); + if (ret) { + dev_dbg(dev, "mtk_crtc %d failed to create cmdq packet\n", + drm_crtc_index(&mtk_crtc->base)); + mbox_free_channel(mtk_crtc->cmdq_chan); + mtk_crtc->cmdq_chan = NULL; + } } } #endif