From patchwork Thu Aug 29 01:48:14 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bibby Hsieh X-Patchwork-Id: 11120199 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EAF1C1800 for ; Thu, 29 Aug 2019 01:52:03 +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 C20C52339E for ; Thu, 29 Aug 2019 01:52:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Ka/V5s0V" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C20C52339E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=dHKmzSH/0l6zzwzg35ajzosBN4oUOGDwG5oNEL4pou4=; b=Ka/V5s0VXahCCo 9w66h6qjMUixDxRD0+EUZRcyM1Qk5iV4W2ZldKgv1m0vCHdBGDudYLAa/99EJC8sCihPRpIQ52Z5a T3gPUCjPvOGfjxVekKA2Z3R1tPefGu+BImuEdyBrd8y5X3tsuqWYXJjg3op1LlOx/o2KnAGQw8Kgu F91qLaIZkMkc/WqnVRA+jz7/nSpBA2uoHFyigdIM6I5I6QZCTq9RzHtMhJUqRoSZKQV/O0I2eC1a4 T9VozW+q16eORvqSnKUQcHktVuxFLc89MMy1DwJ8Uu8sYeYQoED+RtnueZrxrS2vjPy0e2kkSR90p Bo/vldixIBUg5SxBmXGw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1i39bX-0003ix-BL; Thu, 29 Aug 2019 01:52:03 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1i39YD-00083P-L6; Thu, 29 Aug 2019 01:48:39 +0000 X-UUID: af6614abd53d4f40a5e70423555fcde2-20190828 X-UUID: af6614abd53d4f40a5e70423555fcde2-20190828 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 456009360; Wed, 28 Aug 2019 17:48:41 -0800 Received: from MTKMBS01N2.mediatek.inc (172.21.101.79) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Wed, 28 Aug 2019 18:48:40 -0700 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs01n2.mediatek.inc (172.21.101.79) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 29 Aug 2019 09:48:32 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Thu, 29 Aug 2019 09:48:32 +0800 From: Bibby Hsieh To: Jassi Brar , Matthias Brugger , Rob Herring , CK HU Subject: [PATCH v14 07/10] soc: mediatek: cmdq: define the instruction struct Date: Thu, 29 Aug 2019 09:48:14 +0800 Message-ID: <20190829014817.25482-9-bibby.hsieh@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20190829014817.25482-1-bibby.hsieh@mediatek.com> References: <20190829014817.25482-1-bibby.hsieh@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: 43D217943A0D0DC56D0F5E48A94CE83B4B8EDE49BAA999FB38DEBA6B80E22B3E2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190828_184837_933571_B6C54E60 X-CRM114-Status: GOOD ( 13.43 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Nicolas Boichat , srv_heupstream@mediatek.com, linux-kernel@vger.kernel.org, Houlong Wei , Dennis-YC Hsieh , linux-mediatek@lists.infradead.org, Bibby Hsieh , linux-arm-kernel@lists.infradead.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org Define an instruction structure for gce driver to append command. This structure can make the client's code more readability. Signed-off-by: Bibby Hsieh Reviewed-by: CK Hu Reviewed-by: Houlong Wei --- drivers/soc/mediatek/mtk-cmdq-helper.c | 77 ++++++++++++++++-------- include/linux/mailbox/mtk-cmdq-mailbox.h | 10 +++ 2 files changed, 61 insertions(+), 26 deletions(-) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index 7aa0517ff2f3..9472526ab076 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -9,12 +9,24 @@ #include #include -#define CMDQ_ARG_A_WRITE_MASK 0xffff #define CMDQ_WRITE_ENABLE_MASK BIT(0) #define CMDQ_EOC_IRQ_EN BIT(0) #define CMDQ_EOC_CMD ((u64)((CMDQ_CODE_EOC << CMDQ_OP_CODE_SHIFT)) \ << 32 | CMDQ_EOC_IRQ_EN) +struct cmdq_instruction { + union { + u32 value; + u32 mask; + }; + union { + u16 offset; + u16 event; + }; + u8 subsys; + u8 op; +}; + static void cmdq_client_timeout(struct timer_list *t) { struct cmdq_client *client = from_timer(client, t, timer); @@ -110,10 +122,10 @@ void cmdq_pkt_destroy(struct cmdq_pkt *pkt) } EXPORT_SYMBOL(cmdq_pkt_destroy); -static int cmdq_pkt_append_command(struct cmdq_pkt *pkt, enum cmdq_code code, - u32 arg_a, u32 arg_b) +static int cmdq_pkt_append_command(struct cmdq_pkt *pkt, + struct cmdq_instruction inst) { - u64 *cmd_ptr; + struct cmdq_instruction *cmd_ptr; if (unlikely(pkt->cmd_buf_size + CMDQ_INST_SIZE > pkt->buf_size)) { /* @@ -129,8 +141,9 @@ static int cmdq_pkt_append_command(struct cmdq_pkt *pkt, enum cmdq_code code, __func__, (u32)pkt->buf_size); return -ENOMEM; } + cmd_ptr = pkt->va_base + pkt->cmd_buf_size; - (*cmd_ptr) = (u64)((code << CMDQ_OP_CODE_SHIFT) | arg_a) << 32 | arg_b; + *cmd_ptr = inst; pkt->cmd_buf_size += CMDQ_INST_SIZE; return 0; @@ -138,24 +151,31 @@ static int cmdq_pkt_append_command(struct cmdq_pkt *pkt, enum cmdq_code code, int cmdq_pkt_write(struct cmdq_pkt *pkt, u8 subsys, u16 offset, u32 value) { - u32 arg_a = (offset & CMDQ_ARG_A_WRITE_MASK) | - (subsys << CMDQ_SUBSYS_SHIFT); + struct cmdq_instruction inst; + + inst.op = CMDQ_CODE_WRITE; + inst.value = value; + inst.offset = offset; + inst.subsys = subsys; - return cmdq_pkt_append_command(pkt, CMDQ_CODE_WRITE, arg_a, value); + return cmdq_pkt_append_command(pkt, inst); } EXPORT_SYMBOL(cmdq_pkt_write); int cmdq_pkt_write_mask(struct cmdq_pkt *pkt, u8 subsys, u16 offset, u32 value, u32 mask) { - u32 offset_mask = offset; + struct cmdq_instruction inst = { {0} }; + u16 offset_mask = offset; int err = 0; if (mask != 0xffffffff) { - err = cmdq_pkt_append_command(pkt, CMDQ_CODE_MASK, 0, ~mask); + inst.op = CMDQ_CODE_MASK; + inst.mask = ~mask; + err = cmdq_pkt_append_command(pkt, inst); offset_mask |= CMDQ_WRITE_ENABLE_MASK; } - err |= cmdq_pkt_write(pkt, value, subsys, offset_mask); + err |= cmdq_pkt_write(pkt, subsys, offset_mask, value); return err; } @@ -163,43 +183,48 @@ EXPORT_SYMBOL(cmdq_pkt_write_mask); int cmdq_pkt_wfe(struct cmdq_pkt *pkt, u16 event) { - u32 arg_b; + struct cmdq_instruction inst = { {0} }; if (event >= CMDQ_MAX_EVENT) return -EINVAL; - /* - * WFE arg_b - * bit 0-11: wait value - * bit 15: 1 - wait, 0 - no wait - * bit 16-27: update value - * bit 31: 1 - update, 0 - no update - */ - arg_b = CMDQ_WFE_UPDATE | CMDQ_WFE_WAIT | CMDQ_WFE_WAIT_VALUE; + inst.op = CMDQ_CODE_WFE; + inst.value = CMDQ_WFE_OPTION; + inst.event = event; - return cmdq_pkt_append_command(pkt, CMDQ_CODE_WFE, event, arg_b); + return cmdq_pkt_append_command(pkt, inst); } EXPORT_SYMBOL(cmdq_pkt_wfe); int cmdq_pkt_clear_event(struct cmdq_pkt *pkt, u16 event) { + struct cmdq_instruction inst = { {0} }; + if (event >= CMDQ_MAX_EVENT) return -EINVAL; - return cmdq_pkt_append_command(pkt, CMDQ_CODE_WFE, event, - CMDQ_WFE_UPDATE); + inst.op = CMDQ_CODE_WFE; + inst.value = CMDQ_WFE_UPDATE; + inst.event = event; + + return cmdq_pkt_append_command(pkt, inst); } EXPORT_SYMBOL(cmdq_pkt_clear_event); static int cmdq_pkt_finalize(struct cmdq_pkt *pkt) { - int err; + struct cmdq_instruction inst = { {0} }; + int err = 0; /* insert EOC and generate IRQ for each command iteration */ - err = cmdq_pkt_append_command(pkt, CMDQ_CODE_EOC, 0, CMDQ_EOC_IRQ_EN); + inst.op = CMDQ_CODE_EOC; + inst.value = CMDQ_EOC_IRQ_EN; + err = cmdq_pkt_append_command(pkt, inst); /* JUMP to end */ - err |= cmdq_pkt_append_command(pkt, CMDQ_CODE_JUMP, 0, CMDQ_JUMP_PASS); + inst.op = CMDQ_CODE_JUMP; + inst.value = CMDQ_JUMP_PASS; + err |= cmdq_pkt_append_command(pkt, inst); return err; } diff --git a/include/linux/mailbox/mtk-cmdq-mailbox.h b/include/linux/mailbox/mtk-cmdq-mailbox.h index e6f54ef6698b..678760548791 100644 --- a/include/linux/mailbox/mtk-cmdq-mailbox.h +++ b/include/linux/mailbox/mtk-cmdq-mailbox.h @@ -20,6 +20,16 @@ #define CMDQ_WFE_WAIT BIT(15) #define CMDQ_WFE_WAIT_VALUE 0x1 +/* + * WFE arg_b + * bit 0-11: wait value + * bit 15: 1 - wait, 0 - no wait + * bit 16-27: update value + * bit 31: 1 - update, 0 - no update + */ +#define CMDQ_WFE_OPTION (CMDQ_WFE_UPDATE | CMDQ_WFE_WAIT | \ + CMDQ_WFE_WAIT_VALUE) + /** cmdq event maximum */ #define CMDQ_MAX_EVENT 0x3ff