Commit a8a21baf authored by Duncan Ma's avatar Duncan Ma Committed by Alex Deucher
Browse files

drm/amd/display: Notify DMUB on HW Release 



[Why & How]
DMUB shall be notified on driver hardware
release. Implement notification.

Reviewed-by: default avatarDuncan Ma <duncan.ma@amd.com>
Signed-off-by: default avatarDuncan Ma <Duncan.Ma@amd.com>
Signed-off-by: default avatarIvan Lipski <ivan.lipski@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent f9dbe8eb

drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c

+17 −0
Original line number Diff line number Diff line
@@ -2176,3 +2176,20 @@ bool dmub_lsdma_send_poll_reg_write_command(struct dc_dmub_srv *dc_dmub_srv, uin 
	return result;

}



void dc_dmub_srv_release_hw(const struct dc *dc)

{

	struct dc_dmub_srv *dc_dmub_srv = dc->ctx->dmub_srv;

	union dmub_rb_cmd cmd = {0};



	if (!dc_dmub_srv || !dc_dmub_srv->dmub)

		return;



	memset(&cmd, 0, sizeof(cmd));

	cmd.idle_opt_notify_idle.header.type = DMUB_CMD__IDLE_OPT;

	cmd.idle_opt_notify_idle.header.sub_type = DMUB_CMD__IDLE_OPT_RELEASE_HW;

	cmd.idle_opt_notify_idle.header.payload_bytes =

		sizeof(cmd.idle_opt_notify_idle) -

		sizeof(cmd.idle_opt_notify_idle.header);



	dm_execute_dmub_cmd(dc->ctx, &cmd,  DM_DMUB_WAIT_TYPE_WAIT);

}

drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h

+6 −0
Original line number Diff line number Diff line
@@ -291,4 +291,10 @@ bool dc_dmub_srv_ips_query_residency_info(const struct dc_context *ctx, uint8_t 
					  struct dmub_ips_residency_info *driver_info,

					  enum ips_residency_mode ips_mode);



/**

 * dc_dmub_srv_release_hw() - Notifies DMUB service that HW access is no longer required.

 *

 * @dc - pointer to DC object

 */

void dc_dmub_srv_release_hw(const struct dc *dc);

#endif /* _DMUB_DC_SRV_H_ */