linux/drivers/gpu/drm/amd/display/dc/basics/bw_fixed.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 "dm_services.h"
#include "bw_fixed.h"

#define MAX_I64 …

#define MIN_I64 …

#define FRACTIONAL_PART_MASK …

#define GET_FRACTIONAL_PART(x) …

static uint64_t abs_i64(int64_t arg)
{ … }

struct bw_fixed bw_int_to_fixed_nonconst(int64_t value)
{ … }

struct bw_fixed bw_frc_to_fixed(int64_t numerator, int64_t denominator)
{ … }

struct bw_fixed bw_floor2(const struct bw_fixed arg,
			  const struct bw_fixed significance)
{ … }

struct bw_fixed bw_ceil2(const struct bw_fixed arg,
			 const struct bw_fixed significance)
{ … }

struct bw_fixed bw_mul(const struct bw_fixed arg1, const struct bw_fixed arg2)
{ … }