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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/gpu/drm/amd/display/dc/basics | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/basics')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/basics/Makefile | 31 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/basics/conversion.c | 123 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/basics/conversion.h | 49 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/basics/dc_common.c | 101 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/basics/dc_common.h | 42 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/basics/fixpt31_32.c | 492 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/basics/logger.h | 30 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/basics/vector.c | 306 |
8 files changed, 1174 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/basics/Makefile b/drivers/gpu/drm/amd/display/dc/basics/Makefile new file mode 100644 index 0000000000..01b99e0d78 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/basics/Makefile @@ -0,0 +1,31 @@ +# +# Copyright 2017 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. +# +# +# Makefile for the 'utils' sub-component of DAL. +# It provides the general basic services required by other DAL +# subcomponents. + +BASICS = conversion.o fixpt31_32.o vector.o dc_common.o + +AMD_DAL_BASICS = $(addprefix $(AMDDALPATH)/dc/basics/,$(BASICS)) + +AMD_DISPLAY_FILES += $(AMD_DAL_BASICS) diff --git a/drivers/gpu/drm/amd/display/dc/basics/conversion.c b/drivers/gpu/drm/amd/display/dc/basics/conversion.c new file mode 100644 index 0000000000..e295a839ab --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/basics/conversion.c @@ -0,0 +1,123 @@ +/* + * 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 + * + */ + +#include "dm_services.h" +#include "basics/conversion.h" + +#define DIVIDER 10000 + +/* S2D13 value in [-3.00...0.9999] */ +#define S2D13_MIN (-3 * DIVIDER) +#define S2D13_MAX (3 * DIVIDER) + +uint16_t fixed_point_to_int_frac( + struct fixed31_32 arg, + uint8_t integer_bits, + uint8_t fractional_bits) +{ + int32_t numerator; + int32_t divisor = 1 << fractional_bits; + + uint16_t result; + + uint16_t d = (uint16_t)dc_fixpt_floor( + dc_fixpt_abs( + arg)); + + if (d <= (uint16_t)(1 << integer_bits) - (1 / (uint16_t)divisor)) + numerator = (uint16_t)dc_fixpt_round( + dc_fixpt_mul_int( + arg, + divisor)); + else { + numerator = dc_fixpt_floor( + dc_fixpt_sub( + dc_fixpt_from_int( + 1LL << integer_bits), + dc_fixpt_recip( + dc_fixpt_from_int( + divisor)))); + } + + if (numerator >= 0) + result = (uint16_t)numerator; + else + result = (uint16_t)( + (1 << (integer_bits + fractional_bits + 1)) + numerator); + + if ((result != 0) && dc_fixpt_lt( + arg, dc_fixpt_zero)) + result |= 1 << (integer_bits + fractional_bits); + + return result; +} +/* + * convert_float_matrix - This converts a double into HW register spec defined format S2D13. + */ +void convert_float_matrix( + uint16_t *matrix, + struct fixed31_32 *flt, + uint32_t buffer_size) +{ + const struct fixed31_32 min_2_13 = + dc_fixpt_from_fraction(S2D13_MIN, DIVIDER); + const struct fixed31_32 max_2_13 = + dc_fixpt_from_fraction(S2D13_MAX, DIVIDER); + uint32_t i; + + for (i = 0; i < buffer_size; ++i) { + uint32_t reg_value = + fixed_point_to_int_frac( + dc_fixpt_clamp( + flt[i], + min_2_13, + max_2_13), + 2, + 13); + + matrix[i] = (uint16_t)reg_value; + } +} + +static uint32_t find_gcd(uint32_t a, uint32_t b) +{ + uint32_t remainder = 0; + while (b != 0) { + remainder = a % b; + a = b; + b = remainder; + } + return a; +} + +void reduce_fraction(uint32_t num, uint32_t den, + uint32_t *out_num, uint32_t *out_den) +{ + uint32_t gcd = 0; + + gcd = find_gcd(num, den); + *out_num = num / gcd; + *out_den = den / gcd; +} diff --git a/drivers/gpu/drm/amd/display/dc/basics/conversion.h b/drivers/gpu/drm/amd/display/dc/basics/conversion.h new file mode 100644 index 0000000000..81da4e6f7a --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/basics/conversion.h @@ -0,0 +1,49 @@ +/* + * 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 + * + */ + +#ifndef __DAL_CONVERSION_H__ +#define __DAL_CONVERSION_H__ + +#include "include/fixed31_32.h" + +uint16_t fixed_point_to_int_frac( + struct fixed31_32 arg, + uint8_t integer_bits, + uint8_t fractional_bits); + +void convert_float_matrix( + uint16_t *matrix, + struct fixed31_32 *flt, + uint32_t buffer_size); + +void reduce_fraction(uint32_t num, uint32_t den, + uint32_t *out_num, uint32_t *out_den); + +static inline unsigned int log_2(unsigned int num) +{ + return ilog2(num); +} + +#endif diff --git a/drivers/gpu/drm/amd/display/dc/basics/dc_common.c b/drivers/gpu/drm/amd/display/dc/basics/dc_common.c new file mode 100644 index 0000000000..b2fc4f8e64 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/basics/dc_common.c @@ -0,0 +1,101 @@ +/* + * 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 + * + */ + +#include "core_types.h" +#include "dc_common.h" +#include "basics/conversion.h" + +bool is_rgb_cspace(enum dc_color_space output_color_space) +{ + switch (output_color_space) { + case COLOR_SPACE_SRGB: + case COLOR_SPACE_SRGB_LIMITED: + case COLOR_SPACE_2020_RGB_FULLRANGE: + case COLOR_SPACE_2020_RGB_LIMITEDRANGE: + case COLOR_SPACE_ADOBERGB: + return true; + case COLOR_SPACE_YCBCR601: + case COLOR_SPACE_YCBCR709: + case COLOR_SPACE_YCBCR601_LIMITED: + case COLOR_SPACE_YCBCR709_LIMITED: + case COLOR_SPACE_2020_YCBCR: + return false; + default: + /* Add a case to switch */ + BREAK_TO_DEBUGGER(); + return false; + } +} + +bool is_lower_pipe_tree_visible(struct pipe_ctx *pipe_ctx) +{ + if (pipe_ctx->plane_state && pipe_ctx->plane_state->visible) + return true; + if (pipe_ctx->bottom_pipe && is_lower_pipe_tree_visible(pipe_ctx->bottom_pipe)) + return true; + return false; +} + +bool is_upper_pipe_tree_visible(struct pipe_ctx *pipe_ctx) +{ + if (pipe_ctx->plane_state && pipe_ctx->plane_state->visible) + return true; + if (pipe_ctx->top_pipe && is_upper_pipe_tree_visible(pipe_ctx->top_pipe)) + return true; + return false; +} + +bool is_pipe_tree_visible(struct pipe_ctx *pipe_ctx) +{ + if (pipe_ctx->plane_state && pipe_ctx->plane_state->visible) + return true; + if (pipe_ctx->top_pipe && is_upper_pipe_tree_visible(pipe_ctx->top_pipe)) + return true; + if (pipe_ctx->bottom_pipe && is_lower_pipe_tree_visible(pipe_ctx->bottom_pipe)) + return true; + return false; +} + +void build_prescale_params(struct dc_bias_and_scale *bias_and_scale, + const struct dc_plane_state *plane_state) +{ + if (plane_state->format >= SURFACE_PIXEL_FORMAT_VIDEO_BEGIN + && plane_state->format != SURFACE_PIXEL_FORMAT_INVALID + && plane_state->input_csc_color_matrix.enable_adjustment + && plane_state->coeff_reduction_factor.value != 0) { + bias_and_scale->scale_blue = fixed_point_to_int_frac( + dc_fixpt_mul(plane_state->coeff_reduction_factor, + dc_fixpt_from_fraction(256, 255)), + 2, + 13); + bias_and_scale->scale_red = bias_and_scale->scale_blue; + bias_and_scale->scale_green = bias_and_scale->scale_blue; + } else { + bias_and_scale->scale_blue = 0x2000; + bias_and_scale->scale_red = 0x2000; + bias_and_scale->scale_green = 0x2000; + } +} + diff --git a/drivers/gpu/drm/amd/display/dc/basics/dc_common.h b/drivers/gpu/drm/amd/display/dc/basics/dc_common.h new file mode 100644 index 0000000000..7c0cbf47e8 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/basics/dc_common.h @@ -0,0 +1,42 @@ +/* + * 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 + * + */ + +#ifndef __DAL_DC_COMMON_H__ +#define __DAL_DC_COMMON_H__ + +#include "core_types.h" + +bool is_rgb_cspace(enum dc_color_space output_color_space); + +bool is_lower_pipe_tree_visible(struct pipe_ctx *pipe_ctx); + +bool is_upper_pipe_tree_visible(struct pipe_ctx *pipe_ctx); + +bool is_pipe_tree_visible(struct pipe_ctx *pipe_ctx); + +void build_prescale_params(struct dc_bias_and_scale *bias_and_scale, + const struct dc_plane_state *plane_state); + +#endif diff --git a/drivers/gpu/drm/amd/display/dc/basics/fixpt31_32.c b/drivers/gpu/drm/amd/display/dc/basics/fixpt31_32.c new file mode 100644 index 0000000000..1726bdf89b --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/basics/fixpt31_32.c @@ -0,0 +1,492 @@ +/* + * 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 + * + */ + +#include "dm_services.h" +#include "include/fixed31_32.h" + +static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL }; +static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL }; +static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL }; + +static inline unsigned long long abs_i64( + long long arg) +{ + if (arg > 0) + return (unsigned long long)arg; + else + return (unsigned long long)(-arg); +} + +/* + * @brief + * result = dividend / divisor + * *remainder = dividend % divisor + */ +static inline unsigned long long complete_integer_division_u64( + unsigned long long dividend, + unsigned long long divisor, + unsigned long long *remainder) +{ + unsigned long long result; + + ASSERT(divisor); + + result = div64_u64_rem(dividend, divisor, remainder); + + return result; +} + + +#define FRACTIONAL_PART_MASK \ + ((1ULL << FIXED31_32_BITS_PER_FRACTIONAL_PART) - 1) + +#define GET_INTEGER_PART(x) \ + ((x) >> FIXED31_32_BITS_PER_FRACTIONAL_PART) + +#define GET_FRACTIONAL_PART(x) \ + (FRACTIONAL_PART_MASK & (x)) + +struct fixed31_32 dc_fixpt_from_fraction(long long numerator, long long denominator) +{ + struct fixed31_32 res; + + bool arg1_negative = numerator < 0; + bool arg2_negative = denominator < 0; + + unsigned long long arg1_value = arg1_negative ? -numerator : numerator; + unsigned long long arg2_value = arg2_negative ? -denominator : denominator; + + unsigned long long remainder; + + /* determine integer part */ + + unsigned long long res_value = complete_integer_division_u64( + arg1_value, arg2_value, &remainder); + + ASSERT(res_value <= LONG_MAX); + + /* determine fractional part */ + { + unsigned int i = FIXED31_32_BITS_PER_FRACTIONAL_PART; + + do { + remainder <<= 1; + + res_value <<= 1; + + if (remainder >= arg2_value) { + res_value |= 1; + remainder -= arg2_value; + } + } while (--i != 0); + } + + /* round up LSB */ + { + unsigned long long summand = (remainder << 1) >= arg2_value; + + ASSERT(res_value <= LLONG_MAX - summand); + + res_value += summand; + } + + res.value = (long long)res_value; + + if (arg1_negative ^ arg2_negative) + res.value = -res.value; + + return res; +} + +struct fixed31_32 dc_fixpt_mul(struct fixed31_32 arg1, struct fixed31_32 arg2) +{ + struct fixed31_32 res; + + bool arg1_negative = arg1.value < 0; + bool arg2_negative = arg2.value < 0; + + unsigned long long arg1_value = arg1_negative ? -arg1.value : arg1.value; + unsigned long long arg2_value = arg2_negative ? -arg2.value : arg2.value; + + unsigned long long arg1_int = GET_INTEGER_PART(arg1_value); + unsigned long long arg2_int = GET_INTEGER_PART(arg2_value); + + unsigned long long arg1_fra = GET_FRACTIONAL_PART(arg1_value); + unsigned long long arg2_fra = GET_FRACTIONAL_PART(arg2_value); + + unsigned long long tmp; + + res.value = arg1_int * arg2_int; + + ASSERT(res.value <= LONG_MAX); + + res.value <<= FIXED31_32_BITS_PER_FRACTIONAL_PART; + + tmp = arg1_int * arg2_fra; + + ASSERT(tmp <= (unsigned long long)(LLONG_MAX - res.value)); + + res.value += tmp; + + tmp = arg2_int * arg1_fra; + + ASSERT(tmp <= (unsigned long long)(LLONG_MAX - res.value)); + + res.value += tmp; + + tmp = arg1_fra * arg2_fra; + + tmp = (tmp >> FIXED31_32_BITS_PER_FRACTIONAL_PART) + + (tmp >= (unsigned long long)dc_fixpt_half.value); + + ASSERT(tmp <= (unsigned long long)(LLONG_MAX - res.value)); + + res.value += tmp; + + if (arg1_negative ^ arg2_negative) + res.value = -res.value; + + return res; +} + +struct fixed31_32 dc_fixpt_sqr(struct fixed31_32 arg) +{ + struct fixed31_32 res; + + unsigned long long arg_value = abs_i64(arg.value); + + unsigned long long arg_int = GET_INTEGER_PART(arg_value); + + unsigned long long arg_fra = GET_FRACTIONAL_PART(arg_value); + + unsigned long long tmp; + + res.value = arg_int * arg_int; + + ASSERT(res.value <= LONG_MAX); + + res.value <<= FIXED31_32_BITS_PER_FRACTIONAL_PART; + + tmp = arg_int * arg_fra; + + ASSERT(tmp <= (unsigned long long)(LLONG_MAX - res.value)); + + res.value += tmp; + + ASSERT(tmp <= (unsigned long long)(LLONG_MAX - res.value)); + + res.value += tmp; + + tmp = arg_fra * arg_fra; + + tmp = (tmp >> FIXED31_32_BITS_PER_FRACTIONAL_PART) + + (tmp >= (unsigned long long)dc_fixpt_half.value); + + ASSERT(tmp <= (unsigned long long)(LLONG_MAX - res.value)); + + res.value += tmp; + + return res; +} + +struct fixed31_32 dc_fixpt_recip(struct fixed31_32 arg) +{ + /* + * @note + * Good idea to use Newton's method + */ + + ASSERT(arg.value); + + return dc_fixpt_from_fraction( + dc_fixpt_one.value, + arg.value); +} + +struct fixed31_32 dc_fixpt_sinc(struct fixed31_32 arg) +{ + struct fixed31_32 square; + + struct fixed31_32 res = dc_fixpt_one; + + int n = 27; + + struct fixed31_32 arg_norm = arg; + + if (dc_fixpt_le( + dc_fixpt_two_pi, + dc_fixpt_abs(arg))) { + arg_norm = dc_fixpt_sub( + arg_norm, + dc_fixpt_mul_int( + dc_fixpt_two_pi, + (int)div64_s64( + arg_norm.value, + dc_fixpt_two_pi.value))); + } + + square = dc_fixpt_sqr(arg_norm); + + do { + res = dc_fixpt_sub( + dc_fixpt_one, + dc_fixpt_div_int( + dc_fixpt_mul( + square, + res), + n * (n - 1))); + + n -= 2; + } while (n > 2); + + if (arg.value != arg_norm.value) + res = dc_fixpt_div( + dc_fixpt_mul(res, arg_norm), + arg); + + return res; +} + +struct fixed31_32 dc_fixpt_sin(struct fixed31_32 arg) +{ + return dc_fixpt_mul( + arg, + dc_fixpt_sinc(arg)); +} + +struct fixed31_32 dc_fixpt_cos(struct fixed31_32 arg) +{ + /* TODO implement argument normalization */ + + const struct fixed31_32 square = dc_fixpt_sqr(arg); + + struct fixed31_32 res = dc_fixpt_one; + + int n = 26; + + do { + res = dc_fixpt_sub( + dc_fixpt_one, + dc_fixpt_div_int( + dc_fixpt_mul( + square, + res), + n * (n - 1))); + + n -= 2; + } while (n != 0); + + return res; +} + +/* + * @brief + * result = exp(arg), + * where abs(arg) < 1 + * + * Calculated as Taylor series. + */ +static struct fixed31_32 fixed31_32_exp_from_taylor_series(struct fixed31_32 arg) +{ + unsigned int n = 9; + + struct fixed31_32 res = dc_fixpt_from_fraction( + n + 2, + n + 1); + /* TODO find correct res */ + + ASSERT(dc_fixpt_lt(arg, dc_fixpt_one)); + + do + res = dc_fixpt_add( + dc_fixpt_one, + dc_fixpt_div_int( + dc_fixpt_mul( + arg, + res), + n)); + while (--n != 1); + + return dc_fixpt_add( + dc_fixpt_one, + dc_fixpt_mul( + arg, + res)); +} + +struct fixed31_32 dc_fixpt_exp(struct fixed31_32 arg) +{ + /* + * @brief + * Main equation is: + * exp(x) = exp(r + m * ln(2)) = (1 << m) * exp(r), + * where m = round(x / ln(2)), r = x - m * ln(2) + */ + + if (dc_fixpt_le( + dc_fixpt_ln2_div_2, + dc_fixpt_abs(arg))) { + int m = dc_fixpt_round( + dc_fixpt_div( + arg, + dc_fixpt_ln2)); + + struct fixed31_32 r = dc_fixpt_sub( + arg, + dc_fixpt_mul_int( + dc_fixpt_ln2, + m)); + + ASSERT(m != 0); + + ASSERT(dc_fixpt_lt( + dc_fixpt_abs(r), + dc_fixpt_one)); + + if (m > 0) + return dc_fixpt_shl( + fixed31_32_exp_from_taylor_series(r), + (unsigned char)m); + else + return dc_fixpt_div_int( + fixed31_32_exp_from_taylor_series(r), + 1LL << -m); + } else if (arg.value != 0) + return fixed31_32_exp_from_taylor_series(arg); + else + return dc_fixpt_one; +} + +struct fixed31_32 dc_fixpt_log(struct fixed31_32 arg) +{ + struct fixed31_32 res = dc_fixpt_neg(dc_fixpt_one); + /* TODO improve 1st estimation */ + + struct fixed31_32 error; + + ASSERT(arg.value > 0); + /* TODO if arg is negative, return NaN */ + /* TODO if arg is zero, return -INF */ + + do { + struct fixed31_32 res1 = dc_fixpt_add( + dc_fixpt_sub( + res, + dc_fixpt_one), + dc_fixpt_div( + arg, + dc_fixpt_exp(res))); + + error = dc_fixpt_sub( + res, + res1); + + res = res1; + /* TODO determine max_allowed_error based on quality of exp() */ + } while (abs_i64(error.value) > 100ULL); + + return res; +} + + +/* this function is a generic helper to translate fixed point value to + * specified integer format that will consist of integer_bits integer part and + * fractional_bits fractional part. For example it is used in + * dc_fixpt_u2d19 to receive 2 bits integer part and 19 bits fractional + * part in 32 bits. It is used in hw programming (scaler) + */ + +static inline unsigned int ux_dy( + long long value, + unsigned int integer_bits, + unsigned int fractional_bits) +{ + /* 1. create mask of integer part */ + unsigned int result = (1 << integer_bits) - 1; + /* 2. mask out fractional part */ + unsigned int fractional_part = FRACTIONAL_PART_MASK & value; + /* 3. shrink fixed point integer part to be of integer_bits width*/ + result &= GET_INTEGER_PART(value); + /* 4. make space for fractional part to be filled in after integer */ + result <<= fractional_bits; + /* 5. shrink fixed point fractional part to of fractional_bits width*/ + fractional_part >>= FIXED31_32_BITS_PER_FRACTIONAL_PART - fractional_bits; + /* 6. merge the result */ + return result | fractional_part; +} + +static inline unsigned int clamp_ux_dy( + long long value, + unsigned int integer_bits, + unsigned int fractional_bits, + unsigned int min_clamp) +{ + unsigned int truncated_val = ux_dy(value, integer_bits, fractional_bits); + + if (value >= (1LL << (integer_bits + FIXED31_32_BITS_PER_FRACTIONAL_PART))) + return (1 << (integer_bits + fractional_bits)) - 1; + else if (truncated_val > min_clamp) + return truncated_val; + else + return min_clamp; +} + +unsigned int dc_fixpt_u4d19(struct fixed31_32 arg) +{ + return ux_dy(arg.value, 4, 19); +} + +unsigned int dc_fixpt_u3d19(struct fixed31_32 arg) +{ + return ux_dy(arg.value, 3, 19); +} + +unsigned int dc_fixpt_u2d19(struct fixed31_32 arg) +{ + return ux_dy(arg.value, 2, 19); +} + +unsigned int dc_fixpt_u0d19(struct fixed31_32 arg) +{ + return ux_dy(arg.value, 0, 19); +} + +unsigned int dc_fixpt_clamp_u0d14(struct fixed31_32 arg) +{ + return clamp_ux_dy(arg.value, 0, 14, 1); +} + +unsigned int dc_fixpt_clamp_u0d10(struct fixed31_32 arg) +{ + return clamp_ux_dy(arg.value, 0, 10, 1); +} + +int dc_fixpt_s4d19(struct fixed31_32 arg) +{ + if (arg.value < 0) + return -(int)ux_dy(dc_fixpt_abs(arg).value, 4, 19); + else + return ux_dy(arg.value, 4, 19); +} diff --git a/drivers/gpu/drm/amd/display/dc/basics/logger.h b/drivers/gpu/drm/amd/display/dc/basics/logger.h new file mode 100644 index 0000000000..09722f0f8a --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/basics/logger.h @@ -0,0 +1,30 @@ +/* + * 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 + * + */ + +#ifndef __DAL_LOGGER_H__ +#define __DAL_LOGGER_H__ + + +#endif /* __DAL_LOGGER_H__ */ diff --git a/drivers/gpu/drm/amd/display/dc/basics/vector.c b/drivers/gpu/drm/amd/display/dc/basics/vector.c new file mode 100644 index 0000000000..6d2924114a --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/basics/vector.c @@ -0,0 +1,306 @@ +/* + * 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 + * + */ + +#include "dm_services.h" +#include "include/vector.h" + +bool dal_vector_construct( + struct vector *vector, + struct dc_context *ctx, + uint32_t capacity, + uint32_t struct_size) +{ + vector->container = NULL; + + if (!struct_size || !capacity) { + /* Container must be non-zero size*/ + BREAK_TO_DEBUGGER(); + return false; + } + + vector->container = kcalloc(capacity, struct_size, GFP_KERNEL); + if (vector->container == NULL) + return false; + vector->capacity = capacity; + vector->struct_size = struct_size; + vector->count = 0; + vector->ctx = ctx; + return true; +} + +static bool dal_vector_presized_costruct(struct vector *vector, + struct dc_context *ctx, + uint32_t count, + void *initial_value, + uint32_t struct_size) +{ + uint32_t i; + + vector->container = NULL; + + if (!struct_size || !count) { + /* Container must be non-zero size*/ + BREAK_TO_DEBUGGER(); + return false; + } + + vector->container = kcalloc(count, struct_size, GFP_KERNEL); + + if (vector->container == NULL) + return false; + + /* If caller didn't supply initial value then the default + * of all zeros is expected, which is exactly what dal_alloc() + * initialises the memory to. */ + if (NULL != initial_value) { + for (i = 0; i < count; ++i) + memmove( + vector->container + i * struct_size, + initial_value, + struct_size); + } + + vector->capacity = count; + vector->struct_size = struct_size; + vector->count = count; + return true; +} + +struct vector *dal_vector_presized_create( + struct dc_context *ctx, + uint32_t size, + void *initial_value, + uint32_t struct_size) +{ + struct vector *vector = kzalloc(sizeof(struct vector), GFP_KERNEL); + + if (vector == NULL) + return NULL; + + if (dal_vector_presized_costruct( + vector, ctx, size, initial_value, struct_size)) + return vector; + + BREAK_TO_DEBUGGER(); + kfree(vector); + return NULL; +} + +struct vector *dal_vector_create( + struct dc_context *ctx, + uint32_t capacity, + uint32_t struct_size) +{ + struct vector *vector = kzalloc(sizeof(struct vector), GFP_KERNEL); + + if (vector == NULL) + return NULL; + + if (dal_vector_construct(vector, ctx, capacity, struct_size)) + return vector; + + BREAK_TO_DEBUGGER(); + kfree(vector); + return NULL; +} + +void dal_vector_destruct( + struct vector *vector) +{ + kfree(vector->container); + vector->count = 0; + vector->capacity = 0; +} + +void dal_vector_destroy( + struct vector **vector) +{ + if (vector == NULL || *vector == NULL) + return; + dal_vector_destruct(*vector); + kfree(*vector); + *vector = NULL; +} + +uint32_t dal_vector_get_count( + const struct vector *vector) +{ + return vector->count; +} + +void *dal_vector_at_index( + const struct vector *vector, + uint32_t index) +{ + if (vector->container == NULL || index >= vector->count) + return NULL; + return vector->container + (index * vector->struct_size); +} + +bool dal_vector_remove_at_index( + struct vector *vector, + uint32_t index) +{ + if (index >= vector->count) + return false; + + if (index != vector->count - 1) + memmove( + vector->container + (index * vector->struct_size), + vector->container + ((index + 1) * vector->struct_size), + (vector->count - index - 1) * vector->struct_size); + vector->count -= 1; + + return true; +} + +void dal_vector_set_at_index( + const struct vector *vector, + const void *what, + uint32_t index) +{ + void *where = dal_vector_at_index(vector, index); + + if (!where) { + BREAK_TO_DEBUGGER(); + return; + } + memmove( + where, + what, + vector->struct_size); +} + +static inline uint32_t calc_increased_capacity( + uint32_t old_capacity) +{ + return old_capacity * 2; +} + +bool dal_vector_insert_at( + struct vector *vector, + const void *what, + uint32_t position) +{ + uint8_t *insert_address; + + if (vector->count == vector->capacity) { + if (!dal_vector_reserve( + vector, + calc_increased_capacity(vector->capacity))) + return false; + } + + insert_address = vector->container + (vector->struct_size * position); + + if (vector->count && position < vector->count) + memmove( + insert_address + vector->struct_size, + insert_address, + vector->struct_size * (vector->count - position)); + + memmove( + insert_address, + what, + vector->struct_size); + + vector->count++; + + return true; +} + +bool dal_vector_append( + struct vector *vector, + const void *item) +{ + return dal_vector_insert_at(vector, item, vector->count); +} + +struct vector *dal_vector_clone( + const struct vector *vector) +{ + struct vector *vec_cloned; + uint32_t count; + + /* create new vector */ + count = dal_vector_get_count(vector); + + if (count == 0) + /* when count is 0 we still want to create clone of the vector + */ + vec_cloned = dal_vector_create( + vector->ctx, + vector->capacity, + vector->struct_size); + else + /* Call "presized create" version, independently of how the + * original vector was created. + * The owner of original vector must know how to treat the new + * vector - as "presized" or as "regular". + * But from vector point of view it doesn't matter. */ + vec_cloned = dal_vector_presized_create(vector->ctx, count, + NULL,/* no initial value */ + vector->struct_size); + + if (NULL == vec_cloned) { + BREAK_TO_DEBUGGER(); + return NULL; + } + + /* copy vector's data */ + memmove(vec_cloned->container, vector->container, + vec_cloned->struct_size * vec_cloned->capacity); + + return vec_cloned; +} + +uint32_t dal_vector_capacity(const struct vector *vector) +{ + return vector->capacity; +} + +bool dal_vector_reserve(struct vector *vector, uint32_t capacity) +{ + void *new_container; + + if (capacity <= vector->capacity) + return true; + + new_container = krealloc(vector->container, + capacity * vector->struct_size, GFP_KERNEL); + + if (new_container) { + vector->container = new_container; + vector->capacity = capacity; + return true; + } + + return false; +} + +void dal_vector_clear(struct vector *vector) +{ + vector->count = 0; +} |