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Lin" , Singo Chang , Nancy Lin , Shawn Sung , , , , , , Subject: [PATCH 05/15] mailbox: mediatek: Add cmdq_pkt_write_s_reg_value to CMDQ driver Date: Tue, 19 Sep 2023 03:21:54 +0800 Message-ID: <20230918192204.32263-6-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230918192204.32263-1-jason-jh.lin@mediatek.com> References: <20230918192204.32263-1-jason-jh.lin@mediatek.com> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--2.004300-8.000000 X-TMASE-MatchedRID: d+baqQ3qUqdvH7GZAcw0g23NvezwBrVmLoYOuiLW+uU06dhcpwNHEOml /E2CK49b8AyWk2NFMNbijpjet3oGSAQmkMsZWj5BaK+MsTwM+1lD3kXYiJVSRAbYcy9YQl6eKWP e+E7P2THi8zVgXoAltsIJ+4gwXrEtJ0RPnyOnrZIM4S2TRy7cZ2i/C52Uzy3OO0Khn2No/FFzVQ c60jdd5CZkU7HGb3RtsOd5DGuY6AnWt7HEJKl7PDEch5FNHPJzkYKNaDZaI2OAhOcaQrQ0U1GyR coeF18qmKP0zzpTAeGwod8xOMKmvA1Aka/KIp/p X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--2.004300-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 817DEDE7E8A429079FFB1157BA17ACF55FAE7482C54454C9DFF5EB84A5B0B4EF2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230918_122219_250415_FF590897 X-CRM114-Status: GOOD ( 12.29 ) 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 Add cmdq_pkt_write_s_reg_value to CMDQ driver. It appends write_s command to the command buffer in a CMDQ packet, ask GCE to excute a write instruction to write a value to a register with low 16 bits physical address offset. Signed-off-by: Jason-JH.Lin --- drivers/soc/mediatek/mtk-cmdq-helper.c | 13 +++++++++++++ include/linux/soc/mediatek/mtk-cmdq.h | 11 +++++++++++ 2 files changed, 24 insertions(+) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index 5194d66dfc0a..4be2a18a4a02 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -287,6 +287,19 @@ int cmdq_pkt_write_s_value(struct cmdq_pkt *pkt, u8 high_addr_reg_idx, } EXPORT_SYMBOL(cmdq_pkt_write_s_value); +int cmdq_pkt_write_s_reg_value(struct cmdq_pkt *pkt, u8 high_addr_reg_idx, u32 value) +{ + struct cmdq_instruction inst = {}; + + inst.op = CMDQ_CODE_WRITE_S; + inst.dst_t = CMDQ_REG_TYPE; + inst.reg_dst = high_addr_reg_idx; + inst.value = value; + + return cmdq_pkt_append_command(pkt, inst); +} +EXPORT_SYMBOL(cmdq_pkt_write_s_reg_value); + int cmdq_pkt_write_s_mask_value(struct cmdq_pkt *pkt, u8 high_addr_reg_idx, u16 addr_low, u32 value, u32 mask) { diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h index 40e6f3097319..837ad8656adc 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -202,6 +202,17 @@ int cmdq_pkt_write_s_value(struct cmdq_pkt *pkt, u8 high_addr_reg_idx, int cmdq_pkt_write_s_mask_value(struct cmdq_pkt *pkt, u8 high_addr_reg_idx, u16 addr_low, u32 value, u32 mask); +/** + * cmdq_pkt_write_s_reg_value() - append write_s command to the CMDQ packet which + * write value to a register with low address pa + * @pkt: the CMDQ packet + * @reg_idx: internal register ID which contains high address of pa + * @value: the specified target value + * + * Return: 0 for success; else the error code is returned + */ +int cmdq_pkt_write_s_reg_value(struct cmdq_pkt *pkt, u8 high_addr_reg_idx, u32 value); + /** * cmdq_pkt_wfe() - append wait for event command to the CMDQ packet * @pkt: the CMDQ packet