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Thu, 21 Nov 2019 01:13:39 -0800 Received: from mtkmbs08n1.mediatek.inc (172.21.101.55) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 21 Nov 2019 01:13:44 -0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs08n1.mediatek.inc (172.21.101.55) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 21 Nov 2019 17:13:06 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Thu, 21 Nov 2019 17:13:30 +0800 From: Dennis YC Hsieh To: Rob Herring , Matthias Brugger , Jassi Brar Subject: [PATCH v1 09/12] soc: mediatek: cmdq: add mem move function Date: Thu, 21 Nov 2019 17:12:29 +0800 Message-ID: <1574327552-11806-10-git-send-email-dennis-yc.hsieh@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1574327552-11806-1-git-send-email-dennis-yc.hsieh@mediatek.com> References: <1574327552-11806-1-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-20191121_011343_831971_65CF9F84 X-CRM114-Status: GOOD ( 10.08 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 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 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 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 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, wsd_upstream@mediatek.com, linux-kernel@vger.kernel.org, Houlong Wei , Dennis YC Hsieh , linux-mediatek@lists.infradead.org, Bibby Hsieh , CK Hu , linux-arm-kernel@lists.infradead.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org Add memory move function in cmdq helper functions which helps copy value between physical address. Signed-off-by: Dennis YC Hsieh --- drivers/soc/mediatek/mtk-cmdq-helper.c | 26 ++++++++++++++++++++++++++ include/linux/soc/mediatek/mtk-cmdq.h | 13 +++++++++++++ 2 files changed, 39 insertions(+) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index 4c90fed..4235cf8 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -282,6 +282,32 @@ int cmdq_pkt_write_s(struct cmdq_pkt *pkt, dma_addr_t addr, } EXPORT_SYMBOL(cmdq_pkt_write_s); +int cmdq_pkt_mem_move(struct cmdq_pkt *pkt, phys_addr_t src_addr, + phys_addr_t dst_addr) +{ + struct cmdq_instruction inst = { {0} }; + const u16 dst_reg_idx = CMDQ_SPR_TEMP; + const u16 swap_reg_idx = CMDQ_SPR1; + int err; + + err = cmdq_pkt_read_s(pkt, src_addr, swap_reg_idx); + if (err < 0) + return err; + + err = cmdq_pkt_assign(pkt, dst_reg_idx, CMDQ_ADDR_HIGH(dst_addr)); + if (err < 0) + return err; + + inst.op = CMDQ_CODE_WRITE_S; + inst.arg_b_t = CMDQ_REG_TYPE; + inst.sop = dst_reg_idx; + inst.offset = CMDQ_ADDR_LOW(dst_addr); + inst.arg_b = swap_reg_idx; + + return cmdq_pkt_append_command(pkt, inst); +} +EXPORT_SYMBOL(cmdq_pkt_mem_move); + int cmdq_pkt_wfe(struct cmdq_pkt *pkt, u16 event) { struct cmdq_instruction inst = { {0} }; diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h index fb48d3c..b3474f2 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -13,6 +13,7 @@ #define CMDQ_NO_TIMEOUT 0xffffffffu #define CMDQ_SPR_TEMP 0 +#define CMDQ_SPR1 1 struct cmdq_pkt; @@ -126,6 +127,18 @@ int cmdq_pkt_write_s(struct cmdq_pkt *pkt, dma_addr_t addr, u32 value, u32 mask); /** + * cmdq_pkt_mem_move() - append read and write commands to copy data from + * source address to destination address. + * @pkt: the CMDQ packet + * @src_addr: the source physical address + * @dst_addr: the destination physical address + * + * Return: 0 for success; else the error code is returned + */ +int cmdq_pkt_mem_move(struct cmdq_pkt *pkt, phys_addr_t src_addr, + phys_addr_t dst_addr); + +/** * cmdq_pkt_wfe() - append wait for event command to the CMDQ packet * @pkt: the CMDQ packet * @event: the desired event type to "wait and CLEAR"