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 X-Spam-Level: X-Spam-Status: No, score=-14.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 7539AC43463 for ; Sun, 20 Sep 2020 23:42:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 28A8A206B7 for ; Sun, 20 Sep 2020 23:42:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600645363; bh=mgDMbfvtNzbst4k3uB+Gk/tPgYe2PUC1BGewW5HBe6o=; h=From:To:Cc:Subject:Date:List-ID:From; b=1cIjjzODs084pCdNAbajZylz2IrZR9iybgxrgpKXPE5rff/JwEQ8SC04581XLMQhI k9ieCPiTU80ky1LOcV4AC5NaE/v/S9+UmPAUSVtraFWFRzMyHAWQZDahif8IvpATzo 5nPiM+6dsBrJnzu2iVLdZcLPl9C9lJQ7Kncuzscw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726384AbgITXml (ORCPT ); Sun, 20 Sep 2020 19:42:41 -0400 Received: from mail.kernel.org ([198.145.29.99]:41366 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726126AbgITXml (ORCPT ); Sun, 20 Sep 2020 19:42:41 -0400 Received: from DESKTOP-GFFITBK.localdomain (218-161-90-76.HINET-IP.hinet.net [218.161.90.76]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B2F54206B5; Sun, 20 Sep 2020 23:42:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600645360; bh=mgDMbfvtNzbst4k3uB+Gk/tPgYe2PUC1BGewW5HBe6o=; h=From:To:Cc:Subject:Date:From; b=VG6dVd0/Fn4VJ50WzoCKAFBFRXnTPT/ye7Ft3GnBqUdVPeQ+zaBtOq8PnznE7Foru 7HlV8S24Gt+0H293nb8SfIdWMJsVnDJ8lldeanNSDsaB8P14uQ/ix33ExOI6NLxDah G4WO2gSTFXWhb2KVJK0qmEeVwUlKZadOyn3bLcLg= From: Chun-Kuang Hu To: Matthias Brugger Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, Chun-Kuang Hu Subject: [PATCH] soc: mediatek: cmdq: Remove timeout handler in helper function Date: Mon, 21 Sep 2020 07:42:16 +0800 Message-Id: <20200920234216.16884-1-chunkuang.hu@kernel.org> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org For each client driver, its timeout handler need to dump hardware register or its state machine information, so remove timeout handler in helper function and let client driver implement its own timeout handler. Signed-off-by: Chun-Kuang Hu --- drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 3 +- drivers/soc/mediatek/mtk-cmdq-helper.c | 41 +------------------------ include/linux/soc/mediatek/mtk-cmdq.h | 11 +------ 3 files changed, 3 insertions(+), 52 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index 3fc5511330b9..cabeb7fea2be 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -824,8 +824,7 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev, #if IS_REACHABLE(CONFIG_MTK_CMDQ) mtk_crtc->cmdq_client = cmdq_mbox_create(mtk_crtc->mmsys_dev, - drm_crtc_index(&mtk_crtc->base), - 2000); + drm_crtc_index(&mtk_crtc->base)); if (IS_ERR(mtk_crtc->cmdq_client)) { dev_dbg(dev, "mtk_crtc %d failed to create mailbox client, writing register by CPU now\n", drm_crtc_index(&mtk_crtc->base)); diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index dc644cfb6419..4f311f035b59 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -65,14 +65,7 @@ int cmdq_dev_get_client_reg(struct device *dev, } EXPORT_SYMBOL(cmdq_dev_get_client_reg); -static void cmdq_client_timeout(struct timer_list *t) -{ - struct cmdq_client *client = from_timer(client, t, timer); - - dev_err(client->client.dev, "cmdq timeout!\n"); -} - -struct cmdq_client *cmdq_mbox_create(struct device *dev, int index, u32 timeout) +struct cmdq_client *cmdq_mbox_create(struct device *dev, int index) { struct cmdq_client *client; @@ -80,12 +73,6 @@ struct cmdq_client *cmdq_mbox_create(struct device *dev, int index, u32 timeout) if (!client) return (struct cmdq_client *)-ENOMEM; - client->timeout_ms = timeout; - if (timeout != CMDQ_NO_TIMEOUT) { - spin_lock_init(&client->lock); - timer_setup(&client->timer, cmdq_client_timeout, 0); - } - client->pkt_cnt = 0; client->client.dev = dev; client->client.tx_block = false; client->client.knows_txdone = true; @@ -107,11 +94,6 @@ EXPORT_SYMBOL(cmdq_mbox_create); void cmdq_mbox_destroy(struct cmdq_client *client) { - if (client->timeout_ms != CMDQ_NO_TIMEOUT) { - spin_lock(&client->lock); - del_timer_sync(&client->timer); - spin_unlock(&client->lock); - } mbox_free_channel(client->chan); kfree(client); } @@ -342,18 +324,6 @@ static void cmdq_pkt_flush_async_cb(struct cmdq_cb_data data) struct cmdq_task_cb *cb = &pkt->cb; struct cmdq_client *client = (struct cmdq_client *)pkt->cl; - if (client->timeout_ms != CMDQ_NO_TIMEOUT) { - unsigned long flags = 0; - - spin_lock_irqsave(&client->lock, flags); - if (--client->pkt_cnt == 0) - del_timer(&client->timer); - else - mod_timer(&client->timer, jiffies + - msecs_to_jiffies(client->timeout_ms)); - spin_unlock_irqrestore(&client->lock, flags); - } - dma_sync_single_for_cpu(client->chan->mbox->dev, pkt->pa_base, pkt->cmd_buf_size, DMA_TO_DEVICE); if (cb->cb) { @@ -366,7 +336,6 @@ int cmdq_pkt_flush_async(struct cmdq_pkt *pkt, cmdq_async_flush_cb cb, void *data) { int err; - unsigned long flags = 0; struct cmdq_client *client = (struct cmdq_client *)pkt->cl; pkt->cb.cb = cb; @@ -377,14 +346,6 @@ int cmdq_pkt_flush_async(struct cmdq_pkt *pkt, cmdq_async_flush_cb cb, dma_sync_single_for_device(client->chan->mbox->dev, pkt->pa_base, pkt->cmd_buf_size, DMA_TO_DEVICE); - if (client->timeout_ms != CMDQ_NO_TIMEOUT) { - spin_lock_irqsave(&client->lock, flags); - if (client->pkt_cnt++ == 0) - mod_timer(&client->timer, jiffies + - msecs_to_jiffies(client->timeout_ms)); - spin_unlock_irqrestore(&client->lock, flags); - } - err = mbox_send_message(client->chan, pkt); if (err < 0) return err; diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h index 2249ecaf77e4..175bd89f46f8 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -11,8 +11,6 @@ #include #include -#define CMDQ_NO_TIMEOUT 0xffffffffu - struct cmdq_pkt; struct cmdq_client_reg { @@ -22,12 +20,8 @@ struct cmdq_client_reg { }; struct cmdq_client { - spinlock_t lock; - u32 pkt_cnt; struct mbox_client client; struct mbox_chan *chan; - struct timer_list timer; - u32 timeout_ms; /* in unit of microsecond */ }; /** @@ -49,13 +43,10 @@ int cmdq_dev_get_client_reg(struct device *dev, * cmdq_mbox_create() - create CMDQ mailbox client and channel * @dev: device of CMDQ mailbox client * @index: index of CMDQ mailbox channel - * @timeout: timeout of a pkt execution by GCE, in unit of microsecond, set - * CMDQ_NO_TIMEOUT if a timer is not used. * * Return: CMDQ mailbox client pointer */ -struct cmdq_client *cmdq_mbox_create(struct device *dev, int index, - u32 timeout); +struct cmdq_client *cmdq_mbox_create(struct device *dev, int index); /** * cmdq_mbox_destroy() - destroy CMDQ mailbox client and channel -- 2.17.1