From patchwork Tue May 21 01:23:22 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bibby Hsieh X-Patchwork-Id: 10952799 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B0E586C5 for ; Tue, 21 May 2019 01:23:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8A80F28908 for ; Tue, 21 May 2019 01:23:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6613228931; Tue, 21 May 2019 01:23:32 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id B57B928908 for ; Tue, 21 May 2019 01:23:31 +0000 (UTC) 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: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:In-Reply-To:References: List-Owner; bh=0QHPvfhcxo6LY0UtKOF+8miGGolVtJnZNBMDnAU996A=; b=D+Zs43xQZ22tzR 3jCny2sDqg/ql6eZPGBlfuP+qeVxKSf3Fb5wYU73eFb+hSYNN6LQM1XqEUWbAXku802jCL9rkPkhZ 62qfw2MQFVwUFwO1c5EoPSjYnyWbXdHajbw4Dtd8815xHDBxJF1PRHUQzaXg6K2Id/X3Ov2zSgM2c GtAGOiY3pN4E9bcFPCl87gbvkpiNZ7WGa/lEjnDg/wucNTR3tkMnGYVfVzBQgibY1jAmCSTyFla4R gatJ1J3e+NDgloBTFETWFY8quwMphKjue2+m5/xu/yx/5PaUMo9rUSviNIucJRlMwjW+cOEZMin8D aBohF6MEFvg1efcaRJSw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hStV4-0001ti-S1; Tue, 21 May 2019 01:23:30 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hStV2-0001tK-8Y; Tue, 21 May 2019 01:23:29 +0000 X-UUID: 45bd02e9243448f89446ee40e1a15189-20190520 X-UUID: 45bd02e9243448f89446ee40e1a15189-20190520 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 661123696; Mon, 20 May 2019 17:23:26 -0800 Received: from mtkmbs05n2.mediatek.inc (172.21.101.140) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 20 May 2019 18:23:25 -0700 Received: from mtkcas08.mediatek.inc (172.21.101.126) by mtkmbs05n2.mediatek.inc (172.21.101.140) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 21 May 2019 09:23:23 +0800 Received: from mtkslt302.mediatek.inc (10.21.14.115) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Tue, 21 May 2019 09:23:23 +0800 From: Bibby Hsieh To: , , , Subject: [PATCH v7 09/12] soc: mediatek: cmdq: define the instruction struct Date: Tue, 21 May 2019 09:23:22 +0800 Message-ID: <20190521012322.45723-1-bibby.hsieh@mediatek.com> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190520_182328_302783_3B8A55BC X-CRM114-Status: GOOD ( 13.47 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Bibby Hsieh Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP 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 --- drivers/soc/mediatek/mtk-cmdq-helper.c | 103 +++++++++++++++-------- include/linux/mailbox/mtk-cmdq-mailbox.h | 2 + 2 files changed, 72 insertions(+), 33 deletions(-) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index 7aa0517ff2f3..0886c4967ca4 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 +122,8 @@ 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 struct cmdq_instruction *cmdq_pkt_append_command(struct cmdq_pkt *pkt) { - u64 *cmd_ptr; if (unlikely(pkt->cmd_buf_size + CMDQ_INST_SIZE > pkt->buf_size)) { /* @@ -127,81 +137,108 @@ static int cmdq_pkt_append_command(struct cmdq_pkt *pkt, enum cmdq_code code, pkt->cmd_buf_size += CMDQ_INST_SIZE; WARN_ONCE(1, "%s: buffer size %u is too small !\n", __func__, (u32)pkt->buf_size); - return -ENOMEM; + return NULL; } - cmd_ptr = pkt->va_base + pkt->cmd_buf_size; - (*cmd_ptr) = (u64)((code << CMDQ_OP_CODE_SHIFT) | arg_a) << 32 | arg_b; + pkt->cmd_buf_size += CMDQ_INST_SIZE; - return 0; + return pkt->va_base + pkt->cmd_buf_size - CMDQ_INST_SIZE; } 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 = cmdq_pkt_append_command(pkt); + if (!inst) + return -ENOMEM; + + 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 0; } EXPORT_SYMBOL(cmdq_pkt_write); int cmdq_pkt_write_mask(struct cmdq_pkt *pkt, u8 subsys, u16 offset, u32 value, u32 mask) { + struct cmdq_instruction *inst; u32 offset_mask = offset; - int err = 0; if (mask != 0xffffffff) { - err = cmdq_pkt_append_command(pkt, CMDQ_CODE_MASK, 0, ~mask); + inst = cmdq_pkt_append_command(pkt); + if (!inst) + return -ENOMEM; + + inst->op = CMDQ_CODE_MASK; + inst->mask = ~mask; offset_mask |= CMDQ_WRITE_ENABLE_MASK; } - err |= cmdq_pkt_write(pkt, value, subsys, offset_mask); - return err; + return cmdq_pkt_write(pkt, subsys, offset_mask, value); } EXPORT_SYMBOL(cmdq_pkt_write_mask); int cmdq_pkt_wfe(struct cmdq_pkt *pkt, u16 event) { - u32 arg_b; + struct cmdq_instruction *inst; 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 = cmdq_pkt_append_command(pkt); + if (!inst) + return -ENOMEM; + + 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 0; } EXPORT_SYMBOL(cmdq_pkt_wfe); int cmdq_pkt_clear_event(struct cmdq_pkt *pkt, u16 event) { + struct cmdq_instruction *inst; + if (event >= CMDQ_MAX_EVENT) return -EINVAL; - return cmdq_pkt_append_command(pkt, CMDQ_CODE_WFE, event, - CMDQ_WFE_UPDATE); + inst = cmdq_pkt_append_command(pkt); + if (!inst) + return -ENOMEM; + + inst->op = CMDQ_CODE_WFE; + inst->value = CMDQ_WFE_UPDATE; + inst->event = event; + + return 0; } EXPORT_SYMBOL(cmdq_pkt_clear_event); static int cmdq_pkt_finalize(struct cmdq_pkt *pkt) { - int err; + struct cmdq_instruction *inst; + + inst = cmdq_pkt_append_command(pkt); + if (!inst) + return -ENOMEM; - /* 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; - /* JUMP to end */ - err |= cmdq_pkt_append_command(pkt, CMDQ_CODE_JUMP, 0, CMDQ_JUMP_PASS); + inst = cmdq_pkt_append_command(pkt); + if (!inst) + return -ENOMEM; + + inst->op = CMDQ_CODE_JUMP; + inst->value = CMDQ_JUMP_PASS; - return err; + return 0; } static void cmdq_pkt_flush_async_cb(struct cmdq_cb_data data) diff --git a/include/linux/mailbox/mtk-cmdq-mailbox.h b/include/linux/mailbox/mtk-cmdq-mailbox.h index 911475da7a53..c8adedefaf42 100644 --- a/include/linux/mailbox/mtk-cmdq-mailbox.h +++ b/include/linux/mailbox/mtk-cmdq-mailbox.h @@ -19,6 +19,8 @@ #define CMDQ_WFE_UPDATE BIT(31) #define CMDQ_WFE_WAIT BIT(15) #define CMDQ_WFE_WAIT_VALUE 0x1 +#define CMDQ_WFE_OPTION (CMDQ_WFE_UPDATE | CMDQ_WFE_WAIT | \ + CMDQ_WFE_WAIT_VALUE) /** cmdq event maximum */ #define CMDQ_MAX_EVENT 0x3ff