On 07/07/2020 17:45, Dennis YC Hsieh wrote:
add write_s function in cmdq helper functions which
writes value contains in internal register to address
with large dma access support.
Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@xxxxxxxxxxxx>
Now pushed to v5.9-next/soc
Thanks!
---
drivers/soc/mediatek/mtk-cmdq-helper.c | 19 +++++++++++++++++++
include/linux/mailbox/mtk-cmdq-mailbox.h | 1 +
include/linux/soc/mediatek/mtk-cmdq.h | 19 +++++++++++++++++++
3 files changed, 39 insertions(+)
diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
index 9faf78fbed3a..880349b3f16c 100644
--- a/drivers/soc/mediatek/mtk-cmdq-helper.c
+++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
@@ -18,6 +18,10 @@ struct cmdq_instruction {
union {
u32 value;
u32 mask;
+ struct {
+ u16 arg_c;
+ u16 src_reg;
+ };
};
union {
u16 offset;
@@ -223,6 +227,21 @@ int cmdq_pkt_write_mask(struct cmdq_pkt *pkt, u8 subsys,
}
EXPORT_SYMBOL(cmdq_pkt_write_mask);
+int cmdq_pkt_write_s(struct cmdq_pkt *pkt, u16 high_addr_reg_idx,
+ u16 addr_low, u16 src_reg_idx)
+{
+ struct cmdq_instruction inst = {};
+
+ inst.op = CMDQ_CODE_WRITE_S;
+ inst.src_t = CMDQ_REG_TYPE;
+ inst.sop = high_addr_reg_idx;
+ inst.offset = addr_low;
+ inst.src_reg = src_reg_idx;
+
+ return cmdq_pkt_append_command(pkt, inst);
+}
+EXPORT_SYMBOL(cmdq_pkt_write_s);
+
int cmdq_pkt_wfe(struct cmdq_pkt *pkt, u16 event)
{
struct cmdq_instruction inst = { {0} };
diff --git a/include/linux/mailbox/mtk-cmdq-mailbox.h b/include/linux/mailbox/mtk-cmdq-mailbox.h
index 05eea1aef5aa..1f76cfedb16d 100644
--- a/include/linux/mailbox/mtk-cmdq-mailbox.h
+++ b/include/linux/mailbox/mtk-cmdq-mailbox.h
@@ -60,6 +60,7 @@ enum cmdq_code {
CMDQ_CODE_JUMP = 0x10,
CMDQ_CODE_WFE = 0x20,
CMDQ_CODE_EOC = 0x40,
+ CMDQ_CODE_WRITE_S = 0x90,
CMDQ_CODE_LOGIC = 0xa0,
};
diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h
index 2249ecaf77e4..9b0c57a0063d 100644
--- a/include/linux/soc/mediatek/mtk-cmdq.h
+++ b/include/linux/soc/mediatek/mtk-cmdq.h
@@ -12,6 +12,8 @@
#include <linux/timer.h>
#define CMDQ_NO_TIMEOUT 0xffffffffu
+#define CMDQ_ADDR_HIGH(addr) ((u32)(((addr) >> 16) & GENMASK(31, 0)))
+#define CMDQ_ADDR_LOW(addr) ((u16)(addr) | BIT(1))
struct cmdq_pkt;
@@ -103,6 +105,23 @@ int cmdq_pkt_write_mask(struct cmdq_pkt *pkt, u8 subsys,
u16 offset, u32 value, u32 mask);
/**
+ * cmdq_pkt_write_s() - append write_s command to the CMDQ packet
+ * @pkt: the CMDQ packet
+ * @high_addr_reg_idx: internal register ID which contains high address of pa
+ * @addr_low: low address of pa
+ * @src_reg_idx: the CMDQ internal register ID which cache source value
+ *
+ * Return: 0 for success; else the error code is returned
+ *
+ * Support write value to physical address without subsys. Use CMDQ_ADDR_HIGH()
+ * to get high address and call cmdq_pkt_assign() to assign value into internal
+ * reg. Also use CMDQ_ADDR_LOW() to get low address for addr_low parameter when
+ * call to this function.
+ */
+int cmdq_pkt_write_s(struct cmdq_pkt *pkt, u16 high_addr_reg_idx,
+ u16 addr_low, u16 src_reg_idx);
+
+/**
* 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"
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel
