1 /*
2 * Copyright (c) 2012-2015 Etnaviv Project
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, sub license,
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 (including the
12 * next paragraph) shall be included in all copies or substantial portions
13 * of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24 #ifndef H_ETNA_INTERNAL
25 #define H_ETNA_INTERNAL
26
27 #include <assert.h>
28 #include <stdbool.h>
29 #include <stdint.h>
30
31 #include "hw/state.xml.h"
32 #include "hw/state_3d.xml.h"
33
34 #include <etnaviv_drmif.h>
35
36 #define ETNA_NUM_INPUTS (16)
37 #define ETNA_NUM_VARYINGS 8
38 #define ETNA_NUM_LOD (14)
39 #define ETNA_NUM_LAYERS (6)
40 #define ETNA_MAX_UNIFORMS (256)
41 #define ETNA_MAX_PIXELPIPES 2
42
43 /* All RS operations must have width%16 = 0 */
44 #define ETNA_RS_WIDTH_MASK (16 - 1)
45 /* RS tiled operations must have height%4 = 0 */
46 #define ETNA_RS_HEIGHT_MASK (3)
47 /* PE render targets must be aligned to 64 bytes */
48 #define ETNA_PE_ALIGNMENT (64)
49
50 /* These demarcate the margin (fixp16) between the computed sizes and the
51 value sent to the chip. These have been set to the numbers used by the
52 Vivante driver on gc2000. They used to be -1 for scissor right and bottom. I
53 am not sure whether older hardware was relying on these or they were just a
54 guess. But if so, these need to be moved to the _specs structure.
55 */
56 #define ETNA_SE_SCISSOR_MARGIN_RIGHT (0x1119)
57 #define ETNA_SE_SCISSOR_MARGIN_BOTTOM (0x1111)
58 #define ETNA_SE_CLIP_MARGIN_RIGHT (0xffff)
59 #define ETNA_SE_CLIP_MARGIN_BOTTOM (0xffff)
60
61 /* GPU chip 3D specs */
62 struct etna_specs {
63 /* HALTI (gross architecture) level. -1 for pre-HALTI. */
64 int halti : 8;
65 /* supports SUPERTILE (64x64) tiling? */
66 unsigned can_supertile : 1;
67 /* needs z=(z+w)/2, for older GCxxx */
68 unsigned vs_need_z_div : 1;
69 /* supports trigonometric instructions */
70 unsigned has_sin_cos_sqrt : 1;
71 /* has SIGN/FLOOR/CEIL instructions */
72 unsigned has_sign_floor_ceil : 1;
73 /* can use VS_RANGE, PS_RANGE registers*/
74 unsigned has_shader_range_registers : 1;
75 /* has the new sin/cos/log functions */
76 unsigned has_new_transcendentals : 1;
77 /* has the new dp2/dpX_norm instructions, among others */
78 unsigned has_halti2_instructions : 1;
79 /* supports single-buffer rendering with multiple pixel pipes */
80 unsigned single_buffer : 1;
81 /* has unified uniforms memory */
82 unsigned has_unified_uniforms : 1;
83 /* can load shader instructions from memory */
84 unsigned has_icache : 1;
85 /* ASTC texture support (and has associated states) */
86 unsigned tex_astc : 1;
87 /* has BLT engine instead of RS */
88 unsigned use_blt : 1;
89 /* can use any kind of wrapping mode on npot textures */
90 unsigned npot_tex_any_wrap;
91 /* number of bits per TS tile */
92 unsigned bits_per_tile;
93 /* clear value for TS (dependent on bits_per_tile) */
94 uint32_t ts_clear_value;
95 /* base of vertex texture units */
96 unsigned vertex_sampler_offset;
97 /* number of fragment sampler units */
98 unsigned fragment_sampler_count;
99 /* number of vertex sampler units */
100 unsigned vertex_sampler_count;
101 /* size of vertex shader output buffer */
102 unsigned vertex_output_buffer_size;
103 /* maximum number of vertex element configurations */
104 unsigned vertex_max_elements;
105 /* size of a cached vertex (?) */
106 unsigned vertex_cache_size;
107 /* number of shader cores */
108 unsigned shader_core_count;
109 /* number of vertex streams */
110 unsigned stream_count;
111 /* vertex shader memory address*/
112 uint32_t vs_offset;
113 /* pixel shader memory address*/
114 uint32_t ps_offset;
115 /* vertex shader uniforms address*/
116 uint32_t vs_uniforms_offset;
117 /* pixel shader uniforms address*/
118 uint32_t ps_uniforms_offset;
119 /* vertex/fragment shader max instructions */
120 uint32_t max_instructions;
121 /* maximum number of varyings */
122 unsigned max_varyings;
123 /* maximum number of registers */
124 unsigned max_registers;
125 /* maximum vertex uniforms */
126 unsigned max_vs_uniforms;
127 /* maximum pixel uniforms */
128 unsigned max_ps_uniforms;
129 /* maximum texture size */
130 unsigned max_texture_size;
131 /* maximum texture size */
132 unsigned max_rendertarget_size;
133 /* available pixel pipes */
134 unsigned pixel_pipes;
135 /* number of constants */
136 unsigned num_constants;
137 };
138
139 /* Compiled Gallium state. All the different compiled state atoms are woven
140 * together and uploaded only when it is necessary to synchronize the state,
141 * for example before rendering. */
142
143 /* Compiled pipe_blend_color */
144 struct compiled_blend_color {
145 float color[4];
146 uint32_t PE_ALPHA_BLEND_COLOR;
147 };
148
149 /* Compiled pipe_stencil_ref */
150 struct compiled_stencil_ref {
151 uint32_t PE_STENCIL_CONFIG;
152 uint32_t PE_STENCIL_CONFIG_EXT;
153 };
154
155 /* Compiled pipe_scissor_state */
156 struct compiled_scissor_state {
157 uint32_t SE_SCISSOR_LEFT;
158 uint32_t SE_SCISSOR_TOP;
159 uint32_t SE_SCISSOR_RIGHT;
160 uint32_t SE_SCISSOR_BOTTOM;
161 uint32_t SE_CLIP_RIGHT;
162 uint32_t SE_CLIP_BOTTOM;
163 };
164
165 /* Compiled pipe_viewport_state */
166 struct compiled_viewport_state {
167 uint32_t PA_VIEWPORT_SCALE_X;
168 uint32_t PA_VIEWPORT_SCALE_Y;
169 uint32_t PA_VIEWPORT_SCALE_Z;
170 uint32_t PA_VIEWPORT_OFFSET_X;
171 uint32_t PA_VIEWPORT_OFFSET_Y;
172 uint32_t PA_VIEWPORT_OFFSET_Z;
173 uint32_t SE_SCISSOR_LEFT;
174 uint32_t SE_SCISSOR_TOP;
175 uint32_t SE_SCISSOR_RIGHT;
176 uint32_t SE_SCISSOR_BOTTOM;
177 uint32_t SE_CLIP_RIGHT;
178 uint32_t SE_CLIP_BOTTOM;
179 uint32_t PE_DEPTH_NEAR;
180 uint32_t PE_DEPTH_FAR;
181 };
182
183 /* Compiled pipe_framebuffer_state */
184 struct compiled_framebuffer_state {
185 struct pipe_surface *cbuf, *zsbuf; /* keep reference to surfaces */
186 uint32_t GL_MULTI_SAMPLE_CONFIG;
187 uint32_t PE_COLOR_FORMAT;
188 uint32_t PE_DEPTH_CONFIG;
189 struct etna_reloc PE_DEPTH_ADDR;
190 struct etna_reloc PE_PIPE_DEPTH_ADDR[ETNA_MAX_PIXELPIPES];
191 uint32_t PE_DEPTH_STRIDE;
192 uint32_t PE_HDEPTH_CONTROL;
193 uint32_t PE_DEPTH_NORMALIZE;
194 struct etna_reloc PE_COLOR_ADDR;
195 struct etna_reloc PE_PIPE_COLOR_ADDR[ETNA_MAX_PIXELPIPES];
196 uint32_t PE_COLOR_STRIDE;
197 uint32_t SE_SCISSOR_LEFT;
198 uint32_t SE_SCISSOR_TOP;
199 uint32_t SE_SCISSOR_RIGHT;
200 uint32_t SE_SCISSOR_BOTTOM;
201 uint32_t SE_CLIP_RIGHT;
202 uint32_t SE_CLIP_BOTTOM;
203 uint32_t RA_MULTISAMPLE_UNK00E04;
204 uint32_t RA_MULTISAMPLE_UNK00E10[VIVS_RA_MULTISAMPLE_UNK00E10__LEN];
205 uint32_t RA_CENTROID_TABLE[VIVS_RA_CENTROID_TABLE__LEN];
206 uint32_t TS_MEM_CONFIG;
207 uint32_t TS_DEPTH_CLEAR_VALUE;
208 struct etna_reloc TS_DEPTH_STATUS_BASE;
209 struct etna_reloc TS_DEPTH_SURFACE_BASE;
210 uint32_t TS_COLOR_CLEAR_VALUE;
211 struct etna_reloc TS_COLOR_STATUS_BASE;
212 struct etna_reloc TS_COLOR_SURFACE_BASE;
213 uint32_t PE_LOGIC_OP;
214 bool msaa_mode; /* adds input (and possible temp) to PS */
215 };
216
217 /* Compiled context->create_vertex_elements_state */
218 struct compiled_vertex_elements_state {
219 unsigned num_elements;
220 uint32_t FE_VERTEX_ELEMENT_CONFIG[VIVS_FE_VERTEX_ELEMENT_CONFIG__LEN];
221 uint32_t NFE_GENERIC_ATTRIB_CONFIG0[VIVS_NFE_GENERIC_ATTRIB__LEN];
222 uint32_t NFE_GENERIC_ATTRIB_SCALE[VIVS_NFE_GENERIC_ATTRIB__LEN];
223 uint32_t NFE_GENERIC_ATTRIB_CONFIG1[VIVS_NFE_GENERIC_ATTRIB__LEN];
224 };
225
226 /* Compiled context->set_vertex_buffer result */
227 struct compiled_set_vertex_buffer {
228 uint32_t FE_VERTEX_STREAM_CONTROL;
229 uint32_t FE_VERTEX_STREAM_UNK14680;
230 struct etna_reloc FE_VERTEX_STREAM_BASE_ADDR;
231 };
232
233 /* Compiled linked VS+PS shader state */
234 struct compiled_shader_state {
235 uint32_t RA_CONTROL;
236 uint32_t PA_ATTRIBUTE_ELEMENT_COUNT;
237 uint32_t PA_CONFIG;
238 uint32_t PA_SHADER_ATTRIBUTES[VIVS_PA_SHADER_ATTRIBUTES__LEN];
239 uint32_t VS_END_PC;
240 uint32_t VS_OUTPUT_COUNT; /* number of outputs if point size per vertex disabled */
241 uint32_t VS_OUTPUT_COUNT_PSIZE; /* number of outputs of point size per vertex enabled */
242 uint32_t VS_INPUT_COUNT;
243 uint32_t VS_TEMP_REGISTER_CONTROL;
244 uint32_t VS_OUTPUT[4];
245 uint32_t VS_INPUT[4];
246 uint32_t VS_LOAD_BALANCING;
247 uint32_t VS_START_PC;
248 uint32_t PS_END_PC;
249 uint32_t PS_OUTPUT_REG;
250 uint32_t PS_INPUT_COUNT;
251 uint32_t PS_INPUT_COUNT_MSAA; /* Adds an input */
252 uint32_t PS_TEMP_REGISTER_CONTROL;
253 uint32_t PS_TEMP_REGISTER_CONTROL_MSAA; /* Adds a temporary if needed to make space for extra input */
254 uint32_t PS_CONTROL;
255 uint32_t PS_START_PC;
256 uint32_t GL_VARYING_TOTAL_COMPONENTS;
257 uint32_t GL_VARYING_NUM_COMPONENTS;
258 uint32_t GL_VARYING_COMPONENT_USE[2];
259 uint32_t GL_HALTI5_SH_SPECIALS;
260 unsigned vs_inst_mem_size;
261 unsigned vs_uniforms_size;
262 unsigned ps_inst_mem_size;
263 unsigned ps_uniforms_size;
264 uint32_t *VS_INST_MEM;
265 uint32_t VS_UNIFORMS[ETNA_MAX_UNIFORMS * 4];
266 uint32_t *PS_INST_MEM;
267 uint32_t PS_UNIFORMS[ETNA_MAX_UNIFORMS * 4];
268 struct etna_reloc PS_INST_ADDR;
269 struct etna_reloc VS_INST_ADDR;
270 };
271
272 /* state of some 3d and common registers relevant to etna driver */
273 struct etna_3d_state {
274 unsigned vs_uniforms_size;
275 unsigned ps_uniforms_size;
276
277 uint32_t /*01008*/ PS_INPUT_COUNT;
278 uint32_t /*0100C*/ PS_TEMP_REGISTER_CONTROL;
279 uint32_t /*03818*/ GL_MULTI_SAMPLE_CONFIG;
280 uint32_t /*05000*/ VS_UNIFORMS[VIVS_VS_UNIFORMS__LEN];
281 uint32_t /*07000*/ PS_UNIFORMS[VIVS_PS_UNIFORMS__LEN];
282 };
283
284 /* Helpers to assist creating and setting bitarrays (eg, for varyings).
285 * field_size must be a power of two, and <= 32. */
286 #define DEFINE_ETNA_BITARRAY(name, num, field_size) \
287 uint32_t name[(num) * (field_size) / 32]
288
289 static inline void
etna_bitarray_set(uint32_t * array,size_t array_size,size_t field_size,size_t index,uint32_t value)290 etna_bitarray_set(uint32_t *array, size_t array_size, size_t field_size,
291 size_t index, uint32_t value)
292 {
293 size_t shift = (index * field_size) % 32;
294 size_t offset = (index * field_size) / 32;
295
296 assert(index < array_size * 32 / field_size);
297 assert(value < 1 << field_size);
298
299 array[offset] |= value << shift;
300 }
301
302 #define etna_bitarray_set(array, field_size, index, value) \
303 etna_bitarray_set((array), ARRAY_SIZE(array), field_size, index, value)
304
305 #endif
306