From patchwork Fri Mar 1 14:44:03 2024 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: 13578555 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 6B8B7C54E49 for ; Fri, 1 Mar 2024 14:44:42 +0000 (UTC) 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=U/pzg95hzYKKeNn2ilc6CAsCRBhZNKFT77oZmciy6hE=; b=JHru+3Q/qUywow kc4AAia7U0udi4h97Yp+L0MQ8xdAvQRZZkVcsr6Asvx4rvRzfrBxuVt/n3mGW5wSe3dmpXeOIgTZI WzNvOOm0zAx99Yidd6e7bXjm/uvj0uE/PBoIAsNgIJK94AFv2CRmbEHHYZERhCUXBolnQFFFwjVFn UhOK/Nafwi1IVJIxqBlybfAjhyy46jb1lWG1zEE79JHhyRFsEMuP3qDtjWO8ijk8jdrs7mHEMXM7E +H9TnviZe9O58tODAszYTPvnMRX/W2X4CxmTNLXZvW2fDNjtXWsCqe3mDOJmgqJ/VAK+ZlX9WPNgt Cl20zAcM0bZ29rUE+pjg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rg47j-00000000lKn-05wc; Fri, 01 Mar 2024 14:44:31 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rg47X-00000000l84-1aF3; Fri, 01 Mar 2024 14:44:22 +0000 X-UUID: 291fada8d7da11eea40fa5ac21cdad35-20240301 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=1jCHjECWvQc/BrF8PoLKpz6E7MT5BMb3T/DMj3fy5Qo=; b=r6HQnGL45/EeOIO4I0f1nxb7faQW1XznO6hhsFKFFTrCubTWHEhgIwjJxEaCnT2eRtYeKdC+SVQM72RJu/+vJ5ggiPKtmv0aj2heR5iGN0aLC1ccJuQXAEHUbuioYhE3yw0D4/dF0UfmhAOG5Ibk4NFQQlsXR5JL6oBGk+8HKjY=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.37,REQID:57f41983-946f-4889-912c-20b50d0ab710,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:6f543d0,CLOUDID:3c2c66ff-c16b-4159-a099-3b9d0558e447,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1, SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-UUID: 291fada8d7da11eea40fa5ac21cdad35-20240301 Received: from mtkmbs13n2.mediatek.inc [(172.21.101.108)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 106386543; Fri, 01 Mar 2024 07:44:08 -0700 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs11n2.mediatek.inc (172.21.101.187) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Fri, 1 Mar 2024 22:44:05 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Fri, 1 Mar 2024 22:44:05 +0800 From: Jason-JH.Lin To: Jassi Brar , Chun-Kuang Hu , Matthias Brugger CC: AngeloGioacchino Del Regno , Jason-ch Chen , "Jason-JH . Lin" , Singo Chang , Nancy Lin , Shawn Sung , , , , Subject: [RESEND, PATCH 5/5] mailbox: mtk-cmdq: Add support runtime get and set GCE event Date: Fri, 1 Mar 2024 22:44:03 +0800 Message-ID: <20240301144403.2977-6-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240301144403.2977-1-jason-jh.lin@mediatek.com> References: <20240301144403.2977-1-jason-jh.lin@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240301_064419_608924_92F6CED9 X-CRM114-Status: GOOD ( 13.11 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org ISP drivers need to get and set GCE event in their runtime contorl flow. So add these functions to support get and set GCE by CPU. Signed-off-by: Jason-JH.Lin --- drivers/mailbox/mtk-cmdq-mailbox.c | 37 ++++++++++++++++++++++++ include/linux/mailbox/mtk-cmdq-mailbox.h | 2 ++ 2 files changed, 39 insertions(+) diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c index ead2200f39ba..d7c08249c898 100644 --- a/drivers/mailbox/mtk-cmdq-mailbox.c +++ b/drivers/mailbox/mtk-cmdq-mailbox.c @@ -25,7 +25,11 @@ #define CMDQ_GCE_NUM_MAX (2) #define CMDQ_CURR_IRQ_STATUS 0x10 +#define CMDQ_SYNC_TOKEN_ID 0x60 +#define CMDQ_SYNC_TOKEN_VALUE 0x64 +#define CMDQ_TOKEN_ID_MASK GENMASK(9, 0) #define CMDQ_SYNC_TOKEN_UPDATE 0x68 +#define CMDQ_TOKEN_UPDATE_VALUE BIT(16) #define CMDQ_THR_SLOT_CYCLES 0x30 #define CMDQ_THR_BASE 0x100 #define CMDQ_THR_SIZE 0x80 @@ -83,6 +87,7 @@ struct cmdq { struct cmdq_thread *thread; struct clk_bulk_data clocks[CMDQ_GCE_NUM_MAX]; bool suspended; + spinlock_t event_lock; /* lock for gce event */ }; struct gce_plat { @@ -113,6 +118,38 @@ u8 cmdq_get_shift_pa(struct mbox_chan *chan) } EXPORT_SYMBOL(cmdq_get_shift_pa); +void cmdq_set_event(void *chan, u16 event_id) +{ + struct cmdq *cmdq = container_of(((struct mbox_chan *)chan)->mbox, + typeof(*cmdq), mbox); + unsigned long flags; + + spin_lock_irqsave(&cmdq->event_lock, flags); + + writel(CMDQ_TOKEN_UPDATE_VALUE | event_id, cmdq->base + CMDQ_SYNC_TOKEN_UPDATE); + + spin_unlock_irqrestore(&cmdq->event_lock, flags); +} +EXPORT_SYMBOL(cmdq_set_event); + +u32 cmdq_get_event(void *chan, u16 event_id) +{ + struct cmdq *cmdq = container_of(((struct mbox_chan *)chan)->mbox, + typeof(*cmdq), mbox); + unsigned long flags; + u32 value = 0; + + spin_lock_irqsave(&cmdq->event_lock, flags); + + writel(CMDQ_TOKEN_ID_MASK & event_id, cmdq->base + CMDQ_SYNC_TOKEN_ID); + value = readl(cmdq->base + CMDQ_SYNC_TOKEN_VALUE); + + spin_unlock_irqrestore(&cmdq->event_lock, flags); + + return value; +} +EXPORT_SYMBOL(cmdq_get_event); + static int cmdq_thread_suspend(struct cmdq *cmdq, struct cmdq_thread *thread) { u32 status; diff --git a/include/linux/mailbox/mtk-cmdq-mailbox.h b/include/linux/mailbox/mtk-cmdq-mailbox.h index a8f0070c7aa9..f05cabd230da 100644 --- a/include/linux/mailbox/mtk-cmdq-mailbox.h +++ b/include/linux/mailbox/mtk-cmdq-mailbox.h @@ -79,5 +79,7 @@ struct cmdq_pkt { }; u8 cmdq_get_shift_pa(struct mbox_chan *chan); +void cmdq_set_event(void *chan, u16 event_id); +u32 cmdq_get_event(void *chan, u16 event_id); #endif /* __MTK_CMDQ_MAILBOX_H__ */