xref: /linux/drivers/gpu/drm/amd/display/dc/dpp/dcn401/dcn401_dpp_cm.c (revision 6dfafbd0299a60bfb5d5e277fdf100037c7ded07)
1 /*
2  * Copyright 2016 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: AMD
23  *
24  */
25 
26 #include "dm_services.h"
27 
28 #include "core_types.h"
29 
30 #include "reg_helper.h"
31 #include "dcn401/dcn401_dpp.h"
32 #include "basics/conversion.h"
33 #include "dcn10/dcn10_cm_common.h"
34 
35 #define NUM_PHASES    64
36 #define HORZ_MAX_TAPS 8
37 #define VERT_MAX_TAPS 8
38 
39 #define BLACK_OFFSET_RGB_Y 0x0
40 #define BLACK_OFFSET_CBCR  0x8000
41 
42 #define REG(reg)\
43 	dpp->tf_regs->reg
44 
45 #define CTX \
46 	dpp->base.ctx
47 
48 #undef FN
49 #define FN(reg_name, field_name) \
50 	dpp->tf_shift->field_name, dpp->tf_mask->field_name
51 
52 #define NUM_ELEMENTS(a) (sizeof(a) / sizeof((a)[0]))
53 
54 
55 enum dcn401_coef_filter_type_sel {
56 	SCL_COEF_LUMA_VERT_FILTER = 0,
57 	SCL_COEF_LUMA_HORZ_FILTER = 1,
58 	SCL_COEF_CHROMA_VERT_FILTER = 2,
59 	SCL_COEF_CHROMA_HORZ_FILTER = 3,
60 	SCL_COEF_SC_VERT_FILTER = 4,
61 	SCL_COEF_SC_HORZ_FILTER = 5
62 };
63 
64 enum dscl_autocal_mode {
65 	AUTOCAL_MODE_OFF = 0,
66 
67 	/* Autocal calculate the scaling ratio and initial phase and the
68 	 * DSCL_MODE_SEL must be set to 1
69 	 */
70 	AUTOCAL_MODE_AUTOSCALE = 1,
71 	/* Autocal perform auto centering without replication and the
72 	 * DSCL_MODE_SEL must be set to 0
73 	 */
74 	AUTOCAL_MODE_AUTOCENTER = 2,
75 	/* Autocal perform auto centering and auto replication and the
76 	 * DSCL_MODE_SEL must be set to 0
77 	 */
78 	AUTOCAL_MODE_AUTOREPLICATE = 3
79 };
80 
81 enum dscl_mode_sel {
82 	DSCL_MODE_SCALING_444_BYPASS = 0,
83 	DSCL_MODE_SCALING_444_RGB_ENABLE = 1,
84 	DSCL_MODE_SCALING_444_YCBCR_ENABLE = 2,
85 	DSCL_MODE_SCALING_YCBCR_ENABLE = 3,
86 	DSCL_MODE_LUMA_SCALING_BYPASS = 4,
87 	DSCL_MODE_CHROMA_SCALING_BYPASS = 5,
88 	DSCL_MODE_DSCL_BYPASS = 6
89 };
90 
dpp401_set_cursor_attributes(struct dpp * dpp_base,struct dc_cursor_attributes * cursor_attributes)91 void dpp401_set_cursor_attributes(
92 	struct dpp *dpp_base,
93 	struct dc_cursor_attributes *cursor_attributes)
94 {
95 	struct dcn401_dpp *dpp = TO_DCN401_DPP(dpp_base);
96 	enum dc_cursor_color_format color_format = cursor_attributes->color_format;
97 	int cur_rom_en = 0;
98 
99 	if (color_format == CURSOR_MODE_COLOR_PRE_MULTIPLIED_ALPHA ||
100 		color_format == CURSOR_MODE_COLOR_UN_PRE_MULTIPLIED_ALPHA) {
101 		if (cursor_attributes->attribute_flags.bits.ENABLE_CURSOR_DEGAMMA) {
102 			cur_rom_en = 1;
103 		}
104 	}
105 
106 	if (!dpp_base->cursor_offload)
107 		REG_UPDATE_3(CURSOR0_CONTROL,
108 			CUR0_MODE, color_format,
109 			CUR0_EXPANSION_MODE, 0,
110 			CUR0_ROM_EN, cur_rom_en);
111 
112 	if (color_format == CURSOR_MODE_MONO) {
113 		/* todo: clarify what to program these to */
114 
115 		if (!dpp_base->cursor_offload) {
116 			REG_UPDATE(CURSOR0_COLOR0,
117 				CUR0_COLOR0, 0x00000000);
118 			REG_UPDATE(CURSOR0_COLOR1,
119 				CUR0_COLOR1, 0xFFFFFFFF);
120 		}
121 	}
122 
123 	dpp_base->att.cur0_ctl.bits.expansion_mode = 0;
124 	dpp_base->att.cur0_ctl.bits.cur0_rom_en = cur_rom_en;
125 	dpp_base->att.cur0_ctl.bits.mode = color_format;
126 }
127 
dpp401_set_cursor_position(struct dpp * dpp_base,const struct dc_cursor_position * pos,const struct dc_cursor_mi_param * param,uint32_t width,uint32_t height)128 void dpp401_set_cursor_position(
129 	struct dpp *dpp_base,
130 	const struct dc_cursor_position *pos,
131 	const struct dc_cursor_mi_param *param,
132 	uint32_t width,
133 	uint32_t height)
134 {
135 	struct dcn401_dpp *dpp = TO_DCN401_DPP(dpp_base);
136 	uint32_t cur_en = pos->enable ? 1 : 0;
137 
138 	if (dpp_base->pos.cur0_ctl.bits.cur0_enable != cur_en) {
139 		if (!dpp_base->cursor_offload)
140 			REG_UPDATE(CURSOR0_CONTROL, CUR0_ENABLE, cur_en);
141 	}
142 
143 	dpp_base->pos.cur0_ctl.bits.cur0_enable = cur_en;
144 	dpp_base->att.cur0_ctl.bits.cur0_enable = cur_en;
145 }
146 
dpp401_set_optional_cursor_attributes(struct dpp * dpp_base,struct dpp_cursor_attributes * attr)147 void dpp401_set_optional_cursor_attributes(
148 	struct dpp *dpp_base,
149 	struct dpp_cursor_attributes *attr)
150 {
151 	struct dcn401_dpp *dpp = TO_DCN401_DPP(dpp_base);
152 
153 	if (attr) {
154 		if (!dpp_base->cursor_offload) {
155 			REG_UPDATE(CURSOR0_FP_SCALE_BIAS_G_Y, CUR0_FP_BIAS_G_Y, attr->bias);
156 			REG_UPDATE(CURSOR0_FP_SCALE_BIAS_G_Y, CUR0_FP_SCALE_G_Y, attr->scale);
157 			REG_UPDATE(CURSOR0_FP_SCALE_BIAS_RB_CRCB, CUR0_FP_BIAS_RB_CRCB, attr->bias);
158 			REG_UPDATE(CURSOR0_FP_SCALE_BIAS_RB_CRCB, CUR0_FP_SCALE_RB_CRCB, attr->scale);
159 		}
160 
161 		dpp_base->att.fp_scale_bias_g_y.bits.fp_bias_g_y = attr->bias;
162 		dpp_base->att.fp_scale_bias_g_y.bits.fp_scale_g_y = attr->scale;
163 		dpp_base->att.fp_scale_bias_rb_crcb.bits.fp_bias_rb_crcb = attr->bias;
164 		dpp_base->att.fp_scale_bias_rb_crcb.bits.fp_scale_rb_crcb = attr->scale;
165 	}
166 }
167 
168 /* Program Cursor matrix block in DPP CM */
dpp401_program_cursor_csc(struct dpp * dpp_base,enum dc_color_space color_space,const struct dpp_input_csc_matrix * tbl_entry)169 static void dpp401_program_cursor_csc(
170 	struct dpp *dpp_base,
171 	enum dc_color_space color_space,
172 	const struct dpp_input_csc_matrix *tbl_entry)
173 {
174 	struct dcn401_dpp *dpp = TO_DCN401_DPP(dpp_base);
175 	uint32_t mode_select = 0;
176 	struct color_matrices_reg cur_matrix_regs;
177 	unsigned int i;
178 	const uint16_t *regval = NULL;
179 	int arr_size = sizeof(dpp_input_csc_matrix) / sizeof(struct dpp_input_csc_matrix);
180 
181 	if (color_space < COLOR_SPACE_YCBCR601) {
182 		REG_SET(CUR0_MATRIX_MODE, 0, CUR0_MATRIX_MODE, CUR_MATRIX_BYPASS);
183 		return;
184 	}
185 
186 	/* If adjustments not provided use hardcoded table for color space conversion */
187 	if (tbl_entry == NULL) {
188 
189 		for (i = 0; i < arr_size; i++)
190 			if (dpp_input_csc_matrix[i].color_space == color_space) {
191 				regval = dpp_input_csc_matrix[i].regval;
192 				break;
193 			}
194 
195 		if (regval == NULL) {
196 			BREAK_TO_DEBUGGER();
197 			REG_SET(CUR0_MATRIX_MODE, 0, CUR0_MATRIX_MODE, CUR_MATRIX_BYPASS);
198 			return;
199 		}
200 	} else {
201 		regval = tbl_entry->regval;
202 	}
203 
204 	REG_GET(CUR0_MATRIX_MODE, CUR0_MATRIX_MODE_CURRENT, &mode_select);
205 
206 	//If current set in use not set A, then use set A, otherwise use set B
207 	if (mode_select != CUR_MATRIX_SET_A)
208 		mode_select = CUR_MATRIX_SET_A;
209 	else
210 		mode_select = CUR_MATRIX_SET_B;
211 
212 	cur_matrix_regs.shifts.csc_c11 = dpp->tf_shift->CUR0_MATRIX_C11_A;
213 	cur_matrix_regs.masks.csc_c11 = dpp->tf_mask->CUR0_MATRIX_C11_A;
214 	cur_matrix_regs.shifts.csc_c12 = dpp->tf_shift->CUR0_MATRIX_C12_A;
215 	cur_matrix_regs.masks.csc_c12 = dpp->tf_mask->CUR0_MATRIX_C12_A;
216 
217 	if (mode_select == CUR_MATRIX_SET_A) {
218 		cur_matrix_regs.csc_c11_c12 = REG(CUR0_MATRIX_C11_C12_A);
219 		cur_matrix_regs.csc_c33_c34 = REG(CUR0_MATRIX_C33_C34_A);
220 	} else {
221 		cur_matrix_regs.csc_c11_c12 = REG(CUR0_MATRIX_C11_C12_B);
222 		cur_matrix_regs.csc_c33_c34 = REG(CUR0_MATRIX_C33_C34_B);
223 	}
224 
225 	cm_helper_program_color_matrices(
226 		dpp->base.ctx,
227 		regval,
228 		&cur_matrix_regs);
229 
230 	//select coefficient set to use
231 	REG_SET(CUR0_MATRIX_MODE, 0, CUR0_MATRIX_MODE, mode_select);
232 }
233 
234 /* Program Cursor matrix block in DPP CM */
dpp401_set_cursor_matrix(struct dpp * dpp_base,enum dc_color_space color_space,struct dc_csc_transform cursor_csc_color_matrix)235 void dpp401_set_cursor_matrix(
236 	struct dpp *dpp_base,
237 	enum dc_color_space color_space,
238 	struct dc_csc_transform cursor_csc_color_matrix)
239 {
240 	//Since we don't have cursor matrix information, force bypass mode by passing in unknown color space
241 	dpp401_program_cursor_csc(dpp_base, COLOR_SPACE_UNKNOWN, NULL);
242 }
243