diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dmub/dmub_srv.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/dmub_srv.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/dmub_srv.h b/drivers/gpu/drm/amd/display/dmub/dmub_srv.h index cd204eef073b..83855b8a32e9 100644 --- a/drivers/gpu/drm/amd/display/dmub/dmub_srv.h +++ b/drivers/gpu/drm/amd/display/dmub/dmub_srv.h @@ -360,6 +360,8 @@ struct dmub_srv_hw_funcs { uint32_t (*get_gpint_dataout)(struct dmub_srv *dmub); + void (*clear_inbox0_ack_register)(struct dmub_srv *dmub); + uint32_t (*read_inbox0_ack_register)(struct dmub_srv *dmub); void (*send_inbox0_cmd)(struct dmub_srv *dmub, union dmub_inbox0_data_register data); uint32_t (*get_current_time)(struct dmub_srv *dmub); @@ -409,6 +411,7 @@ struct dmub_srv { struct dmub_srv_base_funcs funcs; struct dmub_srv_hw_funcs hw_funcs; struct dmub_rb inbox1_rb; + uint32_t inbox1_last_wptr; /** * outbox1_rb is accessed without locks (dal & dc) * and to be used only in dmub_srv_stat_get_notification() @@ -735,6 +738,45 @@ bool dmub_srv_get_diagnostic_data(struct dmub_srv *dmub, struct dmub_diagnostic_ bool dmub_srv_should_detect(struct dmub_srv *dmub); +/** + * dmub_srv_send_inbox0_cmd() - Send command to DMUB using INBOX0 + * @dmub: the dmub service + * @data: the data to be sent in the INBOX0 command + * + * Send command by writing directly to INBOX0 WPTR + * + * Return: + * DMUB_STATUS_OK - success + * DMUB_STATUS_INVALID - hw_init false or hw function does not exist + */ +enum dmub_status dmub_srv_send_inbox0_cmd(struct dmub_srv *dmub, union dmub_inbox0_data_register data); + +/** + * dmub_srv_wait_for_inbox0_ack() - wait for DMUB to ACK INBOX0 command + * @dmub: the dmub service + * @timeout_us: the maximum number of microseconds to wait + * + * Wait for DMUB to ACK the INBOX0 message + * + * Return: + * DMUB_STATUS_OK - success + * DMUB_STATUS_INVALID - hw_init false or hw function does not exist + * DMUB_STATUS_TIMEOUT - wait for ack timed out + */ +enum dmub_status dmub_srv_wait_for_inbox0_ack(struct dmub_srv *dmub, uint32_t timeout_us); + +/** + * dmub_srv_wait_for_inbox0_ack() - clear ACK register for INBOX0 + * @dmub: the dmub service + * + * Clear ACK register for INBOX0 + * + * Return: + * DMUB_STATUS_OK - success + * DMUB_STATUS_INVALID - hw_init false or hw function does not exist + */ +enum dmub_status dmub_srv_clear_inbox0_ack(struct dmub_srv *dmub); + #if defined(__cplusplus) } #endif |