diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mailbox/mtk-cmdq-mailbox.h | 19 | ||||
| -rw-r--r-- | include/linux/soc/mediatek/mtk-cmdq.h | 93 |
2 files changed, 112 insertions, 0 deletions
diff --git a/include/linux/mailbox/mtk-cmdq-mailbox.h b/include/linux/mailbox/mtk-cmdq-mailbox.h index e1555e06e7e5..07c1bfbdb8c4 100644 --- a/include/linux/mailbox/mtk-cmdq-mailbox.h +++ b/include/linux/mailbox/mtk-cmdq-mailbox.h @@ -70,14 +70,33 @@ struct cmdq_cb_data { struct cmdq_pkt *pkt; }; +struct cmdq_mbox_priv { + u8 shift_pa; + dma_addr_t mminfra_offset; +}; + struct cmdq_pkt { void *va_base; dma_addr_t pa_base; size_t cmd_buf_size; /* command occupied size */ size_t buf_size; /* real buffer size */ + struct cmdq_mbox_priv priv; /* for generating instruction */ }; /** + * cmdq_get_mbox_priv() - get the private data of mailbox channel + * @chan: mailbox channel + * @priv: pointer to store the private data of mailbox channel + * + * While generating the GCE instruction to command buffer, the private data + * of GCE hardware may need to be referenced, such as the shift bits of + * physical address. + * + * This function should be called before generating the GCE instruction. + */ +void cmdq_get_mbox_priv(struct mbox_chan *chan, struct cmdq_mbox_priv *priv); + +/** * cmdq_get_shift_pa() - get the shift bits of physical address * @chan: mailbox channel * diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h index 0c3906e8ad19..a06b5a61f337 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -23,6 +23,8 @@ #define CMDQ_THR_SPR_IDX2 (2) #define CMDQ_THR_SPR_IDX3 (3) +#define CMDQ_SUBSYS_INVALID (U8_MAX) + struct cmdq_pkt; enum cmdq_logic_op { @@ -52,8 +54,20 @@ struct cmdq_operand { struct cmdq_client_reg { u8 subsys; + phys_addr_t pa_base; u16 offset; u16 size; + + /* + * Client only uses these functions for MMIO access, + * so doesn't need to handle the mminfra_offset. + * The mminfra_offset is used for DRAM access and + * is handled internally by CMDQ APIs. + */ + int (*pkt_write)(struct cmdq_pkt *pkt, u8 subsys, u32 pa_base, + u16 offset, u32 value); + int (*pkt_write_mask)(struct cmdq_pkt *pkt, u8 subsys, u32 pa_base, + u16 offset, u32 value, u32 mask); }; struct cmdq_client { @@ -122,6 +136,32 @@ void cmdq_pkt_destroy(struct cmdq_client *client, struct cmdq_pkt *pkt); int cmdq_pkt_write(struct cmdq_pkt *pkt, u8 subsys, u16 offset, u32 value); /** + * cmdq_pkt_write_pa() - append write command to the CMDQ packet with pa_base + * @pkt: the CMDQ packet + * @subsys: unused parameter + * @pa_base: the physical address base of the hardware register + * @offset: register offset from CMDQ sub system + * @value: the specified target register value + * + * Return: 0 for success; else the error code is returned + */ +int cmdq_pkt_write_pa(struct cmdq_pkt *pkt, u8 subsys /*unused*/, + u32 pa_base, u16 offset, u32 value); + +/** + * cmdq_pkt_write_subsys() - append write command to the CMDQ packet with subsys + * @pkt: the CMDQ packet + * @subsys: the CMDQ sub system code + * @pa_base: unused parameter + * @offset: register offset from CMDQ sub system + * @value: the specified target register value + * + * Return: 0 for success; else the error code is returned + */ +int cmdq_pkt_write_subsys(struct cmdq_pkt *pkt, u8 subsys, + u32 pa_base /*unused*/, u16 offset, u32 value); + +/** * cmdq_pkt_write_mask() - append write command with mask to the CMDQ packet * @pkt: the CMDQ packet * @subsys: the CMDQ sub system code @@ -134,6 +174,34 @@ 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_write_mask_pa() - append write command with mask to the CMDQ packet with pa + * @pkt: the CMDQ packet + * @subsys: unused parameter + * @pa_base: the physical address base of the hardware register + * @offset: register offset from CMDQ sub system + * @value: the specified target register value + * @mask: the specified target register mask + * + * Return: 0 for success; else the error code is returned + */ +int cmdq_pkt_write_mask_pa(struct cmdq_pkt *pkt, u8 subsys /*unused*/, + u32 pa_base, u16 offset, u32 value, u32 mask); + +/** + * cmdq_pkt_write_mask_subsys() - append write command with mask to the CMDQ packet with subsys + * @pkt: the CMDQ packet + * @subsys: the CMDQ sub system code + * @pa_base: unused parameter + * @offset: register offset from CMDQ sub system + * @value: the specified target register value + * @mask: the specified target register mask + * + * Return: 0 for success; else the error code is returned + */ +int cmdq_pkt_write_mask_subsys(struct cmdq_pkt *pkt, u8 subsys, + u32 pa_base /*unused*/, u16 offset, u32 value, u32 mask); + /* * cmdq_pkt_read_s() - append read_s command to the CMDQ packet * @pkt: the CMDQ packet @@ -418,12 +486,37 @@ static inline int cmdq_pkt_write(struct cmdq_pkt *pkt, u8 subsys, u16 offset, u3 return -ENOENT; } +static inline int cmdq_pkt_write_pa(struct cmdq_pkt *pkt, u8 subsys /*unused*/, + u32 pa_base, u16 offset, u32 value) +{ + return -ENOENT; +} + +static inline int cmdq_pkt_write_subsys(struct cmdq_pkt *pkt, u8 subsys, + u32 pa_base /*unused*/, u16 offset, u32 value) +{ + return -ENOENT; +} + static inline int cmdq_pkt_write_mask(struct cmdq_pkt *pkt, u8 subsys, u16 offset, u32 value, u32 mask) { return -ENOENT; } +static inline int cmdq_pkt_write_mask_pa(struct cmdq_pkt *pkt, u8 subsys /*unused*/, + u32 pa_base, u16 offset, u32 value, u32 mask) +{ + return -ENOENT; +} + +static inline int cmdq_pkt_write_mask_subsys(struct cmdq_pkt *pkt, u8 subsys, + u32 pa_base /*unused*/, u16 offset, + u32 value, u32 mask) +{ + return -ENOENT; +} + static inline int cmdq_pkt_read_s(struct cmdq_pkt *pkt, u16 high_addr_reg_idx, u16 addr_low, u16 reg_idx) { |