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Tue, 03 Mar 2020 03:08:51 -0800 Received: from mtkmbs05n2.mediatek.inc (172.21.101.140) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 3 Mar 2020 02:58:50 -0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs05n2.mediatek.inc (172.21.101.140) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 3 Mar 2020 18:57:48 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Tue, 3 Mar 2020 18:58:11 +0800 From: Dennis YC Hsieh To: Rob Herring , Mark Rutland , Matthias Brugger , Jassi Brar , Philipp Zabel , "David Airlie" , Daniel Vetter Subject: [PATCH v4 08/13] soc: mediatek: cmdq: add read_s function Date: Tue, 3 Mar 2020 18:58:40 +0800 Message-ID: <1583233125-7827-9-git-send-email-dennis-yc.hsieh@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1583233125-7827-1-git-send-email-dennis-yc.hsieh@mediatek.com> References: <1583233125-7827-1-git-send-email-dennis-yc.hsieh@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-20200303_030858_051417_6D535389 X-CRM114-Status: GOOD ( 10.71 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [216.200.240.184 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 MIME_BASE64_TEXT RAW: Message text disguised using base64 encoding -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-BeenThere: linux-arm-kernel@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, wsd_upstream@mediatek.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, HS Liao , Dennis YC Hsieh , linux-mediatek@lists.infradead.org, Houlong Wei , Bibby Hsieh , CK Hu , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Add read_s function in cmdq helper functions which support read value from register or dma physical address into gce internal register. Signed-off-by: Dennis YC Hsieh Reviewed-by: CK Hu --- drivers/soc/mediatek/mtk-cmdq-helper.c | 15 +++++++++++++++ include/linux/mailbox/mtk-cmdq-mailbox.h | 1 + include/linux/soc/mediatek/mtk-cmdq.h | 13 +++++++++++++ 3 files changed, 29 insertions(+) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index 90f1ff2b4b00..03c129230cd7 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -226,6 +226,21 @@ int cmdq_pkt_write_mask(struct cmdq_pkt *pkt, u8 subsys, } EXPORT_SYMBOL(cmdq_pkt_write_mask); +int cmdq_pkt_read_s(struct cmdq_pkt *pkt, u16 high_addr_reg_idx, u16 addr_low, + u16 reg_idx) +{ + struct cmdq_instruction inst = { {0} }; + + inst.op = CMDQ_CODE_READ_S; + inst.dst_t = CMDQ_REG_TYPE; + inst.sop = high_addr_reg_idx; + inst.reg_dst = reg_idx; + inst.src_reg = addr_low; + + return cmdq_pkt_append_command(pkt, inst); +} +EXPORT_SYMBOL(cmdq_pkt_read_s); + int cmdq_pkt_write_s(struct cmdq_pkt *pkt, u16 high_addr_reg_idx, u16 addr_low, u16 src_reg_idx, u32 mask) { diff --git a/include/linux/mailbox/mtk-cmdq-mailbox.h b/include/linux/mailbox/mtk-cmdq-mailbox.h index 8ef87e1bd03b..3f6bc0dfd5da 100644 --- a/include/linux/mailbox/mtk-cmdq-mailbox.h +++ b/include/linux/mailbox/mtk-cmdq-mailbox.h @@ -59,6 +59,7 @@ enum cmdq_code { CMDQ_CODE_JUMP = 0x10, CMDQ_CODE_WFE = 0x20, CMDQ_CODE_EOC = 0x40, + CMDQ_CODE_READ_S = 0x80, CMDQ_CODE_WRITE_S = 0x90, CMDQ_CODE_WRITE_S_MASK = 0x91, CMDQ_CODE_LOGIC = 0xa0, diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h index c72d826d8934..01b4184af310 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -104,6 +104,19 @@ int cmdq_pkt_write(struct cmdq_pkt *pkt, u8 subsys, u16 offset, u32 value); int cmdq_pkt_write_mask(struct cmdq_pkt *pkt, u8 subsys, u16 offset, u32 value, u32 mask); +/* + * cmdq_pkt_read_s() - append read_s command to the CMDQ packet + * @pkt: the CMDQ packet + * @high_addr_reg_idx: internal regisger ID which contains high address of pa + * @addr_low: low address of pa + * @addr: the physical address of register or dma to read + * @reg_idx: the CMDQ internal register ID to cache read data + * + * Return: 0 for success; else the error code is returned + */ +int cmdq_pkt_read_s(struct cmdq_pkt *pkt, u16 high_addr_reg_idx, u16 addr_low, + u16 reg_idx); + /** * cmdq_pkt_write_s() - append write_s command to the CMDQ packet * @pkt: the CMDQ packet