From: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
To: Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
Jassi Brar <jassisinghbrar@gmail.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>
Cc: devicetree@vger.kernel.org, wsd_upstream@mediatek.com,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
HS Liao <hs.liao@mediatek.com>,
Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>,
linux-mediatek@lists.infradead.org,
Houlong Wei <houlong.wei@mediatek.com>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 08/13] soc: mediatek: cmdq: add read_s function
Date: Sun, 8 Mar 2020 18:52:50 +0800 [thread overview]
Message-ID: <1583664775-19382-9-git-send-email-dennis-yc.hsieh@mediatek.com> (raw)
In-Reply-To: <1583664775-19382-1-git-send-email-dennis-yc.hsieh@mediatek.com>
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 <dennis-yc.hsieh@mediatek.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
---
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
--
2.18.0
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next prev parent reply other threads:[~2020-03-09 8:14 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-08 10:52 [PATCH v5 00/13] support gce on mt6779 platform Dennis YC Hsieh
2020-03-08 10:52 ` [PATCH v5 01/13] dt-binding: gce: add gce header file for mt6779 Dennis YC Hsieh
2020-03-08 10:52 ` [PATCH v5 02/13] mailbox: cmdq: variablize address shift in platform Dennis YC Hsieh
2020-03-20 1:05 ` Jassi Brar
2020-03-23 1:11 ` Dennis-YC Hsieh
2020-03-08 10:52 ` [PATCH v5 03/13] mailbox: cmdq: support mt6779 gce platform definition Dennis YC Hsieh
2020-05-16 16:10 ` Matthias Brugger
2020-03-08 10:52 ` [PATCH v5 04/13] mailbox: mediatek: cmdq: clear task in channel before shutdown Dennis YC Hsieh
2020-03-08 10:52 ` [PATCH v5 05/13] soc: mediatek: cmdq: return send msg error code Dennis YC Hsieh
2020-05-16 17:56 ` Matthias Brugger
2020-03-08 10:52 ` [PATCH v5 06/13] soc: mediatek: cmdq: add assign function Dennis YC Hsieh
2020-05-16 17:59 ` Matthias Brugger
2020-05-24 17:01 ` Dennis-YC Hsieh
2020-05-24 18:09 ` Matthias Brugger
2020-03-08 10:52 ` [PATCH v5 07/13] soc: mediatek: cmdq: add write_s function Dennis YC Hsieh
2020-05-16 18:14 ` Matthias Brugger
2020-05-24 17:26 ` Dennis-YC Hsieh
2020-05-24 18:12 ` Matthias Brugger
2020-03-08 10:52 ` Dennis YC Hsieh [this message]
2020-03-08 10:52 ` [PATCH v5 09/13] soc: mediatek: cmdq: add write_s value function Dennis YC Hsieh
2020-05-16 18:20 ` Matthias Brugger
2020-05-24 17:31 ` Dennis-YC Hsieh
2020-05-24 18:13 ` Matthias Brugger
2020-05-25 2:27 ` Dennis-YC Hsieh
2020-05-25 8:39 ` Matthias Brugger
2020-05-25 10:38 ` Dennis-YC Hsieh
2020-05-25 13:59 ` Matthias Brugger
2020-03-08 10:52 ` [PATCH v5 10/13] soc: mediatek: cmdq: export finalize function Dennis YC Hsieh
2020-05-16 18:22 ` Matthias Brugger
2020-05-24 17:32 ` Dennis-YC Hsieh
2020-05-25 0:23 ` Chun-Kuang Hu
2020-05-25 8:38 ` Matthias Brugger
2020-05-25 10:48 ` Chun-Kuang Hu
2020-03-08 10:52 ` [PATCH v5 11/13] soc: mediatek: cmdq: add jump function Dennis YC Hsieh
2020-03-09 1:48 ` CK Hu
2020-03-08 10:52 ` [PATCH v5 12/13] soc: mediatek: cmdq: add clear option in cmdq_pkt_wfe api Dennis YC Hsieh
2020-03-09 2:07 ` CK Hu
2020-05-16 18:30 ` Matthias Brugger
2020-05-24 17:32 ` Dennis-YC Hsieh
2020-03-08 10:52 ` [PATCH v5 13/13] soc: mediatek: cmdq: add set event function Dennis YC Hsieh
2020-05-16 18:32 ` Matthias Brugger
2020-05-24 17:39 ` Dennis-YC Hsieh
2020-05-24 18:15 ` Matthias Brugger
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