linux/drivers/gpu/drm/amd/display/dc/hubbub/dcn35/dcn35_hubbub.c

/* SPDX-License-Identifier: MIT */
/*
 * Copyright 2023 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
 *
 */


#include "dcn30/dcn30_hubbub.h"
#include "dcn31/dcn31_hubbub.h"
#include "dcn32/dcn32_hubbub.h"
#include "dcn35_hubbub.h"
#include "dm_services.h"
#include "reg_helper.h"


#define CTX …
#define DC_LOGGER …
#define REG(reg) …

#undef FN
#define FN(reg_name, field_name) …

#define DCN35_CRB_SEGMENT_SIZE_KB …

static void dcn35_init_crb(struct hubbub *hubbub)
{ … }

static void dcn35_program_compbuf_size(struct hubbub *hubbub, unsigned int compbuf_size_kb, bool safe_to_increase)
{ … }

static uint32_t convert_and_clamp(
	uint32_t wm_ns,
	uint32_t refclk_mhz,
	uint32_t clamp_value)
{ … }

static bool hubbub35_program_stutter_z8_watermarks(
		struct hubbub *hubbub,
		union dcn_watermark_set *watermarks,
		unsigned int refclk_mhz,
		bool safe_to_lower)
{ … }

static void hubbub35_get_dchub_ref_freq(struct hubbub *hubbub,
		unsigned int dccg_ref_freq_inKhz,
		unsigned int *dchub_ref_freq_inKhz)
{ … }


static bool hubbub35_program_watermarks(
		struct hubbub *hubbub,
		union dcn_watermark_set *watermarks,
		unsigned int refclk_mhz,
		bool safe_to_lower)
{ … }

/* Copy values from WM set A to all other sets */
static void hubbub35_init_watermarks(struct hubbub *hubbub)
{ … }

static void hubbub35_wm_read_state(struct hubbub *hubbub,
		struct dcn_hubbub_wm *wm)
{ … }

static void hubbub35_set_fgcg(struct dcn20_hubbub *hubbub2, bool enable)
{ … }

static void hubbub35_init(struct hubbub *hubbub)
{ … }

/*static void hubbub35_set_request_limit(struct hubbub *hubbub,
				       int memory_channel_count,
				       int words_per_channel)
{
	struct dcn20_hubbub *hubbub2 = TO_DCN20_HUBBUB(hubbub);

	uint32_t request_limit = 3 * memory_channel_count * words_per_channel / 4;

	ASSERT((request_limit & (~0xFFF)) == 0); //field is only 24 bits long
	ASSERT(request_limit > 0); //field is only 24 bits long

	if (request_limit > 0xFFF)
		request_limit = 0xFFF;

	if (request_limit > 0)
		REG_UPDATE(SDPIF_REQUEST_RATE_LIMIT, SDPIF_REQUEST_RATE_LIMIT, request_limit);
}*/

static const struct hubbub_funcs hubbub35_funcs = …;

void hubbub35_construct(struct dcn20_hubbub *hubbub2,
	struct dc_context *ctx,
	const struct dcn_hubbub_registers *hubbub_regs,
	const struct dcn_hubbub_shift *hubbub_shift,
	const struct dcn_hubbub_mask *hubbub_mask,
	int det_size_kb,
	int pixel_chunk_size_kb,
	int config_return_buffer_size_kb)
{ … }