diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dmub/inc')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h | 131 |
1 files changed, 130 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h index d0fe324cb537..1f5f4e3e49d4 100644 --- a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h +++ b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h @@ -161,6 +161,13 @@ #endif /** + * OS/FW agnostic memcmp + */ +#ifndef dmub_memcmp +#define dmub_memcmp(lhs, rhs, bytes) memcmp((lhs), (rhs), (bytes)) +#endif + +/** * OS/FW agnostic udelay */ #ifndef dmub_udelay @@ -1325,6 +1332,16 @@ enum dmub_inbox0_command { #define DMUB_RB_SIZE (DMUB_RB_CMD_SIZE * DMUB_RB_MAX_ENTRY) /** + * Maximum number of items in the DMUB REG INBOX0 internal ringbuffer. + */ +#define DMUB_REG_INBOX0_RB_MAX_ENTRY 16 + +/** + * Ringbuffer size in bytes. + */ +#define DMUB_REG_INBOX0_RB_SIZE (DMUB_RB_CMD_SIZE * DMUB_REG_INBOX0_RB_MAX_ENTRY) + +/** * REG_SET mask for reg offload. */ #define REG_SET_MASK 0xFFFF @@ -1460,6 +1477,11 @@ enum dmub_cmd_type { */ DMUB_CMD__PSP = 88, + /** + * Command type used for all Fused IO commands. + */ + DMUB_CMD__FUSED_IO = 89, + DMUB_CMD__VBIOS = 128, }; @@ -1491,6 +1513,10 @@ enum dmub_out_cmd_type { * Command type used for HPD redetect notification */ DMUB_OUT_CMD__HPD_SENSE_NOTIFY = 6, + /** + * Command type used for Fused IO notification + */ + DMUB_OUT_CMD__FUSED_IO = 7, }; /* DMUB_CMD__DPIA command sub-types. */ @@ -1517,7 +1543,8 @@ struct dmub_cmd_header { unsigned int sub_type : 8; /**< command sub type */ unsigned int ret_status : 1; /**< 1 if returned data, 0 otherwise */ unsigned int multi_cmd_pending : 1; /**< 1 if multiple commands chained together */ - unsigned int reserved0 : 6; /**< reserved bits */ + unsigned int is_reg_based : 1; /**< 1 if register based mailbox cmd, 0 if FB based cmd */ + unsigned int reserved0 : 5; /**< reserved bits */ unsigned int payload_bytes : 6; /* payload excluding header - up to 60 bytes */ unsigned int reserved1 : 2; /**< reserved bits */ }; @@ -3118,6 +3145,12 @@ struct dmub_cmd_psr_copy_settings_data { * Some panels request main link off before xth vertical line */ uint16_t poweroff_before_vertical_line; + /** + * Some panels cannot handle idle pattern during PSR entry. + * To power down phy before disable stream to avoid sending + * idle pattern. + */ + uint8_t power_down_phy_before_disable_stream; }; /** @@ -5319,6 +5352,63 @@ struct dmub_rb_cmd_get_usbc_cable_id { } data; }; +enum dmub_cmd_fused_io_sub_type { + DMUB_CMD__FUSED_IO_EXECUTE = 0, + DMUB_CMD__FUSED_IO_ABORT = 1, +}; + +enum dmub_cmd_fused_request_type { + FUSED_REQUEST_READ, + FUSED_REQUEST_WRITE, + FUSED_REQUEST_POLL, +}; + +enum dmub_cmd_fused_request_status { + FUSED_REQUEST_STATUS_SUCCESS, + FUSED_REQUEST_STATUS_BEGIN, + FUSED_REQUEST_STATUS_SUBMIT, + FUSED_REQUEST_STATUS_REPLY, + FUSED_REQUEST_STATUS_POLL, + FUSED_REQUEST_STATUS_ABORTED, + FUSED_REQUEST_STATUS_FAILED = 0x80, + FUSED_REQUEST_STATUS_INVALID, + FUSED_REQUEST_STATUS_BUSY, + FUSED_REQUEST_STATUS_TIMEOUT, + FUSED_REQUEST_STATUS_POLL_TIMEOUT, +}; + +struct dmub_cmd_fused_request { + uint8_t status; + uint8_t type : 2; + uint8_t _reserved0 : 3; + uint8_t poll_mask_msb : 3; // Number of MSB to zero out from last byte before comparing + uint8_t identifier; + uint8_t _reserved1; + uint32_t timeout_us; + union dmub_cmd_fused_request_location { + struct dmub_cmd_fused_request_location_i2c { + uint8_t is_aux : 1; // False + uint8_t ddc_line : 3; + uint8_t _reserved0 : 4; + uint8_t address; + uint8_t offset; + uint8_t length; + } i2c; + struct dmub_cmd_fused_request_location_aux { + uint32_t is_aux : 1; // True + uint32_t ddc_line : 3; + uint32_t address : 20; + uint32_t length : 8; // Automatically split into 16B transactions + } aux; + } u; + uint8_t buffer[0x30]; // Read: out, write: in, poll: expected +}; + +struct dmub_rb_cmd_fused_io { + struct dmub_cmd_header header; + struct dmub_cmd_fused_request request; +}; + /** * Command type of a DMUB_CMD__SECURE_DISPLAY command */ @@ -5732,6 +5822,8 @@ union dmub_rb_cmd { struct dmub_rb_cmd_fams2_drr_update fams2_drr_update; struct dmub_rb_cmd_fams2_flip fams2_flip; + + struct dmub_rb_cmd_fused_io fused_io; }; /** @@ -5762,6 +5854,7 @@ union dmub_rb_out_cmd { * HPD sense notification command. */ struct dmub_rb_cmd_hpd_sense_notify hpd_sense_notify; + struct dmub_rb_cmd_fused_io fused_io; }; #pragma pack(pop) @@ -5809,6 +5902,42 @@ static inline bool dmub_rb_empty(struct dmub_rb *rb) } /** + * @brief gets number of outstanding requests in the RB + * + * @param rb DMUB Ringbuffer + * @return true if full + */ +static inline uint32_t dmub_rb_num_outstanding(struct dmub_rb *rb) +{ + uint32_t data_count; + + if (rb->wrpt >= rb->rptr) + data_count = rb->wrpt - rb->rptr; + else + data_count = rb->capacity - (rb->rptr - rb->wrpt); + + return data_count / DMUB_RB_CMD_SIZE; +} + +/** + * @brief gets number of free buffers in the RB + * + * @param rb DMUB Ringbuffer + * @return true if full + */ +static inline uint32_t dmub_rb_num_free(struct dmub_rb *rb) +{ + uint32_t data_count; + + if (rb->wrpt >= rb->rptr) + data_count = rb->wrpt - rb->rptr; + else + data_count = rb->capacity - (rb->rptr - rb->wrpt); + + return (rb->capacity - data_count) / DMUB_RB_CMD_SIZE; +} + +/** * @brief Checks if the ringbuffer is full * * @param rb DMUB Ringbuffer |