From patchwork Mon Jul 12 23:50:12 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: 12372573 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=-17.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 C96D0C07E9C for ; Mon, 12 Jul 2021 23:50:41 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 85B0F6115B for ; Mon, 12 Jul 2021 23:50:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 85B0F6115B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=vz31Z5SUgaRhijMfLn5KSLT653MTlS6RvidkYjJhjcQ=; b=uor/5HiLwQ3naI TCHes0O3SHgaCX1X+XYZb1mWo3l9Ymj9EYMsOc8+qUGrR/wbH5p1UsbHdFTL1PUjS35UKxox4uS0b qEk8VZ39HcvCCxmxBx2WZNe4cLfD+v68kaqw2scG69ZvwAzWZWaEw6XP3igTBuiUOsAl3/Gi9pNdL suoU2q9/Hge3YlovbGEUYOMlj7TzuBW3sISOdINNxmr3mYbvWDgvNn0HtfFNC3Q4dG3ZeA/ZUAxMu ByI6j5yeCWTMae/caxsTOD6T+e4Xb5x0QcP9gfXR+DgyYbHVO7RMwUo5n+5AihpRHUFqbtKdWJ/qQ DWvkAwq2i6PKv4gOpEpw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1m35gz-008lvb-8z; Mon, 12 Jul 2021 23:50:29 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1m35gw-008ltk-DN for linux-mediatek@lists.infradead.org; Mon, 12 Jul 2021 23:50:28 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5E23B6115B; Mon, 12 Jul 2021 23:50:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1626133826; bh=seLfjRZfOAajPigJNtQgG0QgPfYWnzuM99r4YyzX3YM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Sf5wJK4EtjG533dZXQHid/vnDyZ+EsUV0FjNouRAmuUYEJJ5OX1aMvFEKCZV4HPAH w4PMi3aY2JcuqCYCIEs/LgmcC2ROn6WEPyanJFnAf2aC0+HLry6z66/rdAo5uf6MYH lQxGgfTCmMQJevOY20V3kgZW8aGG2TvqzxUfanVMwo8KtxMXxQo8E3+9GLj+EmdeHX UIfqVGwKcggCkvtgPCT92DTRqgzbkXlcvW6QMeCvn52c1WLExw6SL3jnY3OkvbmZef 4dy4DODGDCSCERYSUO/xY+30IroLifv5zTDwNt99zkyOfXB5tlFLdJMV37bwIpG5Tu O9YjQFcDQ0xhA== 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 2/4] drm/mediatek: Remove struct cmdq_client Date: Tue, 13 Jul 2021 07:50:12 +0800 Message-Id: <20210712235014.42673-3-chunkuang.hu@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210712235014.42673-1-chunkuang.hu@kernel.org> References: <20210712235014.42673-1-chunkuang.hu@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210712_165026_546663_32820E6A X-CRM114-Status: GOOD ( 13.58 ) 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 In mailbox rx_callback, it pass struct mbox_client to callback function, but it could not map back to mtk_drm_crtc instance because struct cmdq_client use a pointer to struct mbox_client: struct cmdq_client { struct mbox_client client; struct mbox_chan *chan; }; struct mtk_drm_crtc { /* client instance data */ struct cmdq_client *cmdq_client; }; so remove struct cmdq_client and let mtk_drm_crtc instance define mbox_client as: struct mtk_drm_crtc { /* client instance data */ struct mbox_client cl; }; and in rx_callback function, use struct mbox_client to get struct mtk_drm_crtc. Signed-off-by: Chun-Kuang Hu --- drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 80 +++++++++++++++++++------ 1 file changed, 62 insertions(+), 18 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index cac8fe219c95..db8621df7d85 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -52,7 +52,8 @@ struct mtk_drm_crtc { bool pending_async_planes; #if IS_REACHABLE(CONFIG_MTK_CMDQ) - struct cmdq_client *cmdq_client; + struct mbox_client cmdq_cl; + struct mbox_chan *cmdq_chan; u32 cmdq_event; #endif @@ -223,12 +224,52 @@ struct mtk_ddp_comp *mtk_drm_ddp_comp_for_plane(struct drm_crtc *crtc, return NULL; } +static struct cmdq_pkt *mtk_drm_cmdq_pkt_create(struct mbox_chan *chan, 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); + } + pkt->buf_size = size; + + dev = chan->mbox->dev; + dma_addr = dma_map_single(dev, pkt->va_base, pkt->buf_size, + DMA_TO_DEVICE); + if (dma_mapping_error(dev, dma_addr)) { + dev_err(dev, "dma map failed, size=%u\n", (u32)(u64)size); + kfree(pkt->va_base); + kfree(pkt); + return ERR_PTR(-ENOMEM); + } + + pkt->pa_base = dma_addr; + + return pkt; +} + +static void mtk_drm_cmdq_pkt_destroy(struct mbox_chan *chan, struct cmdq_pkt *pkt) +{ + dma_unmap_single(chan->mbox->dev, pkt->pa_base, pkt->buf_size, + DMA_TO_DEVICE); + kfree(pkt->va_base); + kfree(pkt); +} + #if IS_REACHABLE(CONFIG_MTK_CMDQ) static void ddp_cmdq_cb(struct mbox_client *cl, void *mssg) { + struct mtk_drm_crtc *mtk_crtc = container_of(cl, struct mtk_drm_crtc, cmdq_cl); struct cmdq_cb_data *data = mssg; - cmdq_pkt_destroy(data->pkt); + mtk_drm_cmdq_pkt_destroy(mtk_crtc->cmdq_chan, data->pkt); } #endif @@ -472,19 +513,19 @@ static void mtk_drm_crtc_update_config(struct mtk_drm_crtc *mtk_crtc, mtk_mutex_release(mtk_crtc->mutex); } #if IS_REACHABLE(CONFIG_MTK_CMDQ) - if (mtk_crtc->cmdq_client) { - mbox_flush(mtk_crtc->cmdq_client->chan, 2000); - cmdq_handle = cmdq_pkt_create(mtk_crtc->cmdq_client, PAGE_SIZE); + 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_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); cmdq_pkt_finalize(cmdq_handle); - dma_sync_single_for_device(mtk_crtc->cmdq_client->chan->mbox->dev, + dma_sync_single_for_device(mtk_crtc->cmdq_chan->mbox->dev, cmdq_handle->pa_base, cmdq_handle->cmd_buf_size, DMA_TO_DEVICE); - mbox_send_message(mtk_crtc->cmdq_client->chan, cmdq_handle); - mbox_client_txdone(mtk_crtc->cmdq_client->chan, 0); + mbox_send_message(mtk_crtc->cmdq_chan, cmdq_handle); + mbox_client_txdone(mtk_crtc->cmdq_chan, 0); } #endif mtk_crtc->config_updating = false; @@ -498,7 +539,7 @@ static void mtk_crtc_ddp_irq(void *data) struct mtk_drm_private *priv = crtc->dev->dev_private; #if IS_REACHABLE(CONFIG_MTK_CMDQ) - if (!priv->data->shadow_register && !mtk_crtc->cmdq_client) + if (!priv->data->shadow_register && !mtk_crtc->cmdq_chan) #else if (!priv->data->shadow_register) #endif @@ -841,17 +882,20 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev, mutex_init(&mtk_crtc->hw_lock); #if IS_REACHABLE(CONFIG_MTK_CMDQ) - mtk_crtc->cmdq_client = - cmdq_mbox_create(mtk_crtc->mmsys_dev, - drm_crtc_index(&mtk_crtc->base)); - if (IS_ERR(mtk_crtc->cmdq_client)) { + mtk_crtc->cmdq_cl.dev = mtk_crtc->mmsys_dev; + mtk_crtc->cmdq_cl.tx_block = false; + mtk_crtc->cmdq_cl.knows_txdone = true; + mtk_crtc->cmdq_cl.rx_callback = ddp_cmdq_cb; + mtk_crtc->cmdq_chan = + mbox_request_channel(&mtk_crtc->cmdq_cl, + drm_crtc_index(&mtk_crtc->base)); + if (IS_ERR(mtk_crtc->cmdq_chan)) { dev_dbg(dev, "mtk_crtc %d failed to create mailbox client, writing register by CPU now\n", drm_crtc_index(&mtk_crtc->base)); - mtk_crtc->cmdq_client = NULL; + mtk_crtc->cmdq_chan = NULL; } - if (mtk_crtc->cmdq_client) { - mtk_crtc->cmdq_client->client.rx_callback = ddp_cmdq_cb; + if (mtk_crtc->cmdq_chan) { ret = of_property_read_u32_index(priv->mutex_node, "mediatek,gce-events", drm_crtc_index(&mtk_crtc->base), @@ -859,8 +903,8 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev, if (ret) { dev_dbg(dev, "mtk_crtc %d failed to get mediatek,gce-events property\n", drm_crtc_index(&mtk_crtc->base)); - cmdq_mbox_destroy(mtk_crtc->cmdq_client); - mtk_crtc->cmdq_client = NULL; + mbox_free_channel(mtk_crtc->cmdq_chan); + mtk_crtc->cmdq_chan = NULL; } } #endif