From patchwork Wed Apr 3 10:25:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?U2hhd24gU3VuZyAo5a6L5a2d6KyZKQ==?= X-Patchwork-Id: 13615804 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 5468BCD1288 for ; Wed, 3 Apr 2024 10:46:34 +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=r8nsMkOzei616eJKJPMAVttdPUiGAQx86WG3fPOagA4=; b=JcBfdt68iST0ib AqVsexQpJi+fvM9D+uv1KrHwmM15epctJ7/RLT4ArsjBvpe4OJjOM6aLKjWzc8LEf/XUuKcr61QcK rR72cuclgRHRXrfiDoOjqKguF6cQ/OeOyoPpyJDHfuSWdwtJpJSp+WbwyCWqfoIHjGw1D7GLzuN2D 0ZoYySdEqyydv7DL6bmbC+1jHZYmbRaF9RkYoOsvIbWu4q6/GPdUJkxNP84/is0DA76im+j56zLPJ gYrNn3r98chBv9aSmQr8zL5qfG4+zEnEQHE0gE3d7NqQttOKLkqkfRF+UfHEaHjm1xh6glIWY1R6q XYvC25i0ylZXK+6dvVYw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rry8F-0000000FcA3-1XQk; Wed, 03 Apr 2024 10:46:15 +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 1rry8B-0000000Fc7G-21qK; Wed, 03 Apr 2024 10:46:13 +0000 X-UUID: 60c36542f1a711eeac1957ae9f99f617-20240403 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=npIW13bgHexCVVqoGhlPSDwYczA5gkfDJSJKFTSYKKg=; b=kEa0IzeA5eyUb/hm82gxYxeXYUOiHB9F/YLVWCqe00fzbNxiSaflOUPO3cHlMQL0za4v1cKO342UdBQ8lcHqmtBIiOHoq7YSSAfA65eXAq0OFXlU5yiGnrxawBVnkhbjbDURJ9m1KtWWPDmdJiLY36poneFPhcVydza8CgD2imA=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.37,REQID:79e64270-12b8-4501-b9e1-a05e912d223f,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:99c32c91-e2c0-40b0-a8fe-7c7e47299109,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: 60c36542f1a711eeac1957ae9f99f617-20240403 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1837349043; Wed, 03 Apr 2024 03:46:08 -0700 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs13n2.mediatek.inc (172.21.101.108) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Wed, 3 Apr 2024 18:26:04 +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; Wed, 3 Apr 2024 18:26:04 +0800 From: Shawn Sung To: CK Hu , Jassi Brar , AngeloGioacchino Del Regno CC: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , Hsiao Chien Sung , "Jason-JH . Lin" , Houlong Wei , , , , Subject: [PATCH v5 03/10] soc: mediatek: cmdq: Add cmdq_pkt_logic_command to support math operation Date: Wed, 3 Apr 2024 18:25:55 +0800 Message-ID: <20240403102602.32155-4-shawn.sung@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240403102602.32155-1-shawn.sung@mediatek.com> References: <20240403102602.32155-1-shawn.sung@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-20240403_034611_575385_4B158D59 X-CRM114-Status: GOOD ( 16.59 ) 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 From: "Jason-JH.Lin" Add cmdq_pkt_logic_command to support math operation. cmdq_pkt_logic_command can append logic command to the CMDQ packet, ask GCE to execute a arithmetic calculate instruction, such as add, subtract, multiply, AND, OR and NOT, etc. Note that all arithmetic instructions are unsigned calculations. If there are any overflows, GCE will sent the invalid IRQ to notify CMDQ driver. Signed-off-by: Jason-JH.Lin Signed-off-by: Hsiao Chien Sung --- drivers/soc/mediatek/mtk-cmdq-helper.c | 39 ++++++++++++++++++++++++ include/linux/soc/mediatek/mtk-cmdq.h | 42 ++++++++++++++++++++++++++ 2 files changed, 81 insertions(+) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index 8acd8e38283e0..72350138591c3 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -15,9 +15,21 @@ /* dedicate the last GPR_R15 to assign the register address to be poll */ #define CMDQ_POLL_ADDR_GPR (15) #define CMDQ_EOC_IRQ_EN BIT(0) +#define CMDQ_IMMEDIATE_VALUE 0 #define CMDQ_REG_TYPE 1 #define CMDQ_JUMP_RELATIVE 1 +#define CMDQ_GET_ARG_B(arg) (((arg) & GENMASK(31, 16)) >> 16) +#define CMDQ_GET_ARG_C(arg) ((arg) & GENMASK(15, 0)) + +#define CMDQ_OPERAND_GET_IDX_VALUE(operand) \ + ({ \ + struct cmdq_operand *op = operand; \ + op->reg ? op->idx : op->value; \ + }) +#define CMDQ_OPERAND_TYPE(operand) \ + ((operand)->reg ? CMDQ_REG_TYPE : CMDQ_IMMEDIATE_VALUE) + struct cmdq_instruction { union { u32 value; @@ -470,6 +482,33 @@ int cmdq_pkt_poll_addr(struct cmdq_pkt *pkt, dma_addr_t addr, u32 value, u32 mas } EXPORT_SYMBOL(cmdq_pkt_poll_addr); +int cmdq_pkt_logic_command(struct cmdq_pkt *pkt, u16 result_reg_idx, + struct cmdq_operand *left_operand, + enum cmdq_logic_op s_op, + struct cmdq_operand *right_operand) +{ + struct cmdq_instruction inst = { {0} }; + u32 left_idx_value; + u32 right_idx_value; + + if (!left_operand || !right_operand || s_op >= CMDQ_LOGIC_MAX) + return -EINVAL; + + left_idx_value = CMDQ_OPERAND_GET_IDX_VALUE(left_operand); + right_idx_value = CMDQ_OPERAND_GET_IDX_VALUE(right_operand); + inst.op = CMDQ_CODE_LOGIC; + inst.dst_t = CMDQ_REG_TYPE; + inst.src_t = CMDQ_OPERAND_TYPE(left_operand); + inst.arg_c_t = CMDQ_OPERAND_TYPE(right_operand); + inst.sop = s_op; + inst.reg_dst = right_idx_value; + inst.src_reg = left_idx_value; + inst.arg_c = result_reg_idx; + + return cmdq_pkt_append_command(pkt, inst); +} +EXPORT_SYMBOL(cmdq_pkt_logic_command); + int cmdq_pkt_assign(struct cmdq_pkt *pkt, u16 reg_idx, u32 value) { struct cmdq_instruction inst = {}; diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h index f708bcfebdd8a..1edb391ec604a 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -25,6 +25,31 @@ struct cmdq_pkt; +enum cmdq_logic_op { + CMDQ_LOGIC_ASSIGN = 0, + CMDQ_LOGIC_ADD = 1, + CMDQ_LOGIC_SUBTRACT = 2, + CMDQ_LOGIC_MULTIPLY = 3, + CMDQ_LOGIC_XOR = 8, + CMDQ_LOGIC_NOT = 9, + CMDQ_LOGIC_OR = 10, + CMDQ_LOGIC_AND = 11, + CMDQ_LOGIC_LEFT_SHIFT = 12, + CMDQ_LOGIC_RIGHT_SHIFT = 13, + CMDQ_LOGIC_MAX, +}; + +struct cmdq_operand { + /* register type */ + bool reg; + union { + /* index */ + u16 idx; + /* value */ + u16 value; + }; +}; + struct cmdq_client_reg { u8 subsys; u16 offset; @@ -286,6 +311,23 @@ int cmdq_pkt_poll_mask(struct cmdq_pkt *pkt, u8 subsys, */ int cmdq_pkt_poll_addr(struct cmdq_pkt *pkt, dma_addr_t addr, u32 value, u32 mask); +/** + * cmdq_pkt_logic_command() - Append logic command to the CMDQ packet, ask GCE to + * execute an instruction that store the result of logic operation + * with left and right operand into result_reg_idx. + * @pkt: the CMDQ packet + * @result_reg_idx: SPR index that store operation result of left_operand and right_operand + * @left_operand: left operand + * @s_op: the logic operator enum + * @right_operand: right operand + * + * Return: 0 for success; else the error code is returned + */ +int cmdq_pkt_logic_command(struct cmdq_pkt *pkt, u16 result_reg_idx, + struct cmdq_operand *left_operand, + enum cmdq_logic_op s_op, + struct cmdq_operand *right_operand); + /** * cmdq_pkt_assign() - Append logic assign command to the CMDQ packet, ask GCE * to execute an instruction that set a constant value into