/* * Copyright 2012-15 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: AMD * */ /** * This file defines helper functions provided by the Display Manager to * Display Core. */#ifndef __DM_HELPERS__#define __DM_HELPERS__ #include "dc_types.h"#include "dc.h" struct dp_mst_stream_allocation_table; /* * Allocate memory accessible by the GPU * * frame buffer allocations must be aligned to a 4096-byte boundary * * Returns virtual address, sets addr to physical address */void *dm_helpers_allocate_gpu_mem(		struct dc_context *ctx,		enum dc_gpu_mem_alloc_type type,		size_t size,		long long *addr); /* * Free the GPU-accessible memory at the virtual address pvMem */void dm_helpers_free_gpu_mem(		struct dc_context *ctx,		enum dc_gpu_mem_alloc_type type,		void *pvMem); enum dc_edid_status dm_helpers_parse_edid_caps(	struct dc_context *ctx,	const struct dc_edid *edid,	struct dc_edid_caps *edid_caps);  /* * Update DP branch info */void dm_helpers_dp_update_branch_info(		struct dc_context *ctx,		const struct dc_link *link); /* * Writes payload allocation table in immediate downstream device. */bool dm_helpers_dp_mst_write_payload_allocation_table(		struct dc_context *ctx,		const struct dc_stream_state *stream,		struct dp_mst_stream_allocation_table *proposed_table,		bool enable); /* * poll pending down reply */void dm_helpers_dp_mst_poll_pending_down_reply(	struct dc_context *ctx,	const struct dc_link *link); /* * Clear payload allocation table before enable MST DP link. */void dm_helpers_dp_mst_clear_payload_allocation_table(	struct dc_context *ctx,	const struct dc_link *link); /* * Polls for ACT (allocation change trigger) handled and */enum act_return_status dm_helpers_dp_mst_poll_for_allocation_change_trigger(		struct dc_context *ctx,		const struct dc_stream_state *stream);/* * Sends ALLOCATE_PAYLOAD message. */bool dm_helpers_dp_mst_send_payload_allocation(		struct dc_context *ctx,		const struct dc_stream_state *stream,		bool enable); bool dm_helpers_dp_mst_start_top_mgr(		struct dc_context *ctx,		const struct dc_link *link,		bool boot); void dm_helpers_dp_mst_stop_top_mgr(		struct dc_context *ctx,		struct dc_link *link);/** * OS specific aux read callback. */bool dm_helpers_dp_read_dpcd(		struct dc_context *ctx,		const struct dc_link *link,		uint32_t address,		uint8_t *data,		uint32_t size); /** * OS specific aux write callback. */bool dm_helpers_dp_write_dpcd(		struct dc_context *ctx,		const struct dc_link *link,		uint32_t address,		const uint8_t *data,		uint32_t size); bool dm_helpers_submit_i2c(		struct dc_context *ctx,		const struct dc_link *link,		struct i2c_command *cmd); bool dm_helpers_dp_write_dsc_enable(		struct dc_context *ctx,		const struct dc_stream_state *stream,		bool enable);bool dm_helpers_is_dp_sink_present(		struct dc_link *link); void dm_helpers_mst_enable_stream_features(const struct dc_stream_state *stream); enum dc_edid_status dm_helpers_read_local_edid(		struct dc_context *ctx,		struct dc_link *link,		struct dc_sink *sink); void dm_set_dcn_clocks(		struct dc_context *ctx,		struct dc_clocks *clks); bool dm_helpers_dmub_outbox0_interrupt_control(struct dc_context *ctx, bool enable); #endif /* __DM_HELPERS__ */