From patchwork Tue Oct 26 05:29:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?SmFzb24tSkggTGluICjmnpfnnb/npaUp?= X-Patchwork-Id: 12583883 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 30581C433EF for ; Tue, 26 Oct 2021 05:29:36 +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 E5D5F60F92 for ; Tue, 26 Oct 2021 05:29:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org E5D5F60F92 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com 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 8F2B46E24D; Tue, 26 Oct 2021 05:29:29 +0000 (UTC) Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9C4216E21A for ; Tue, 26 Oct 2021 05:29:24 +0000 (UTC) X-UUID: aa4ed3a405fa4b91bb064984ac83988e-20211026 X-UUID: aa4ed3a405fa4b91bb064984ac83988e-20211026 Received: from mtkmbs10n1.mediatek.inc [(172.21.101.34)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 651104480; Tue, 26 Oct 2021 13:29:19 +0800 Received: from mtkexhb02.mediatek.inc (172.21.101.103) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 26 Oct 2021 13:29:18 +0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkexhb02.mediatek.inc (172.21.101.103) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 26 Oct 2021 13:29:18 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 26 Oct 2021 13:29:17 +0800 From: jason-jh.lin To: Chun-Kuang Hu , Philipp Zabel , Matthias Brugger , "Jassi Brar" , Yongqiang Niu CC: David Airlie , Daniel Vetter , "jason-jh . lin" , , , , , , , , Subject: [PATCH v4 4/5] drm/mediatek: Add cmdq_handle in mtk_crtc Date: Tue, 26 Oct 2021 13:29:15 +0800 Message-ID: <20211026052916.8222-5-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20211026052916.8222-1-jason-jh.lin@mediatek.com> References: <20211026052916.8222-1-jason-jh.lin@mediatek.com> MIME-Version: 1.0 X-MTK: N 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" From: Chun-Kuang Hu 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 Signed-off-by: jason-jh.lin --- drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 64 +++++++++++++++++++++++-- 1 file changed, 60 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index dad1f85ee315..31f05efc1bc0 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -53,6 +53,7 @@ struct mtk_drm_crtc { #if IS_REACHABLE(CONFIG_MTK_CMDQ) struct cmdq_client cmdq_client; + struct cmdq_pkt cmdq_handle; u32 cmdq_event; u32 cmdq_vblank_cnt; #endif @@ -107,12 +108,59 @@ static void mtk_drm_finish_page_flip(struct mtk_drm_crtc *mtk_crtc) } } +#if IS_REACHABLE(CONFIG_MTK_CMDQ) +static int mtk_drm_cmdq_pkt_create(struct cmdq_client *client, struct cmdq_pkt *pkt, + size_t size) +{ + struct device *dev; + dma_addr_t dma_addr; + + pkt->va_base = kzalloc(size, GFP_KERNEL); + if (!pkt->va_base) { + kfree(pkt); + return -ENOMEM; + } + pkt->buf_size = size; + pkt->cl = (void *)client; + + dev = client->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 -ENOMEM; + } + + pkt->pa_base = dma_addr; + + return 0; +} + +static void mtk_drm_cmdq_pkt_destroy(struct cmdq_pkt *pkt) +{ + struct cmdq_client *client = (struct cmdq_client *)pkt->cl; + + dma_unmap_single(client->chan->mbox->dev, pkt->pa_base, pkt->buf_size, + DMA_TO_DEVICE); + kfree(pkt->va_base); + kfree(pkt); +} +#endif + static void mtk_drm_crtc_destroy(struct drm_crtc *crtc) { struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc); mtk_mutex_put(mtk_crtc->mutex); +#if IS_REACHABLE(CONFIG_MTK_CMDQ) + mtk_drm_cmdq_pkt_destroy(&mtk_crtc->cmdq_handle); + if (mtk_crtc->cmdq_client.chan) + mbox_free_channel(mtk_crtc->cmdq_client.chan); + mtk_crtc->cmdq_client.chan = NULL; +#endif drm_crtc_cleanup(crtc); } @@ -227,12 +275,10 @@ struct mtk_ddp_comp *mtk_drm_ddp_comp_for_plane(struct drm_crtc *crtc, #if IS_REACHABLE(CONFIG_MTK_CMDQ) static void ddp_cmdq_cb(struct mbox_client *cl, void *mssg) { - struct cmdq_cb_data *data = mssg; struct cmdq_client *cmdq_cl = container_of(cl, struct cmdq_client, client); struct mtk_drm_crtc *mtk_crtc = container_of(cmdq_cl, struct mtk_drm_crtc, cmdq_client); mtk_crtc->cmdq_vblank_cnt = 0; - cmdq_pkt_destroy(data->pkt); } #endif @@ -438,7 +484,7 @@ 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; @@ -478,7 +524,7 @@ static void mtk_drm_crtc_update_config(struct mtk_drm_crtc *mtk_crtc, #if IS_REACHABLE(CONFIG_MTK_CMDQ) if (mtk_crtc->cmdq_client.chan) { mbox_flush(mtk_crtc->cmdq_client.chan, 2000); - cmdq_handle = cmdq_pkt_create(&mtk_crtc->cmdq_client, 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); @@ -877,6 +923,16 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev, drm_crtc_index(&mtk_crtc->base)); mbox_free_channel(mtk_crtc->cmdq_client.chan); mtk_crtc->cmdq_client.chan = NULL; + } else { + ret = mtk_drm_cmdq_pkt_create(&mtk_crtc->cmdq_client, + &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_client.chan); + mtk_crtc->cmdq_client.chan = NULL; + } } } #endif