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Tue, 26 Nov 2019 17:59:20 -0800 Received: from mtkmbs08n2.mediatek.inc (172.21.101.56) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 26 Nov 2019 17:59:52 -0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs08n2.mediatek.inc (172.21.101.56) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Wed, 27 Nov 2019 09:58:44 +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; Wed, 27 Nov 2019 09:58:19 +0800 From: Dennis YC Hsieh To: Rob Herring , Matthias Brugger , Jassi Brar Subject: [PATCH v2 10/14] soc: mediatek: cmdq: add write_s value function Date: Wed, 27 Nov 2019 09:58:53 +0800 Message-ID: <1574819937-6246-12-git-send-email-dennis-yc.hsieh@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1574819937-6246-1-git-send-email-dennis-yc.hsieh@mediatek.com> References: <1574819937-6246-1-git-send-email-dennis-yc.hsieh@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: 248A6CF17373214C60CFC52C8E2696CD4B51C89120D42ADB52041CA5A6455D192000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191126_175924_841345_1C5D86DF X-CRM114-Status: GOOD ( 11.22 ) 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 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an 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-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 write_s function in cmdq helper functions which writes a constant value to address with large dma access support. Signed-off-by: Dennis YC Hsieh --- drivers/soc/mediatek/mtk-cmdq-helper.c | 31 ++++++++++++++++++++++++++ include/linux/soc/mediatek/mtk-cmdq.h | 12 ++++++++++ 2 files changed, 43 insertions(+) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index 2cd693e34980..244b8528eb16 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -284,6 +284,37 @@ int cmdq_pkt_write_s(struct cmdq_pkt *pkt, phys_addr_t addr, u16 reg_idx, } EXPORT_SYMBOL(cmdq_pkt_write_s); +int cmdq_pkt_write_s_value(struct cmdq_pkt *pkt, dma_addr_t addr, + u32 value, u32 mask) +{ + struct cmdq_instruction inst = { {0} }; + int err; + const u16 dst_reg_idx = CMDQ_SPR_TEMP; + + err = cmdq_pkt_assign(pkt, dst_reg_idx, CMDQ_ADDR_HIGH(addr)); + if (err < 0) + return err; + + if (mask != U32_MAX) { + inst.op = CMDQ_CODE_MASK; + inst.mask = ~mask; + err = cmdq_pkt_append_command(pkt, inst); + if (err < 0) + return err; + + inst.op = CMDQ_CODE_WRITE_S_MASK; + } else { + inst.op = CMDQ_CODE_WRITE_S; + } + + inst.sop = dst_reg_idx; + inst.offset = CMDQ_ADDR_LOW(addr); + inst.value = value; + + return cmdq_pkt_append_command(pkt, inst); +} +EXPORT_SYMBOL(cmdq_pkt_write_s_value); + 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 bc28a41d7780..4bce240dbb56 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -128,6 +128,18 @@ int cmdq_pkt_read_s(struct cmdq_pkt *pkt, phys_addr_t addr, u16 reg_idx); int cmdq_pkt_write_s(struct cmdq_pkt *pkt, phys_addr_t addr, u16 reg_idx, u32 mask); +/** + * cmdq_pkt_write_s() - append write_s command with mask to the CMDQ packet + * @pkt: the CMDQ packet + * @addr: the physical address of register or dma + * @value: the specified target value + * @mask: the specified target mask + * + * Return: 0 for success; else the error code is returned + */ +int cmdq_pkt_write_s_value(struct cmdq_pkt *pkt, dma_addr_t addr, + u32 value, u32 mask); + /** * cmdq_pkt_wfe() - append wait for event command to the CMDQ packet * @pkt: the CMDQ packet