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1 /*
2  * Copyright (c) 2011-2013 Luc Verhaegen <libv@skynet.be>
3  * Copyright (c) 2017-2019 Lima Project
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the "Software"),
7  * to deal in the Software without restriction, including without limitation
8  * the rights to use, copy, modify, merge, publish, distribute, sub license,
9  * and/or sell copies of the Software, and to permit persons to whom the
10  * Software is furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice (including the
13  * next paragraph) shall be included in all copies or substantial portions
14  * of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22  * DEALINGS IN THE SOFTWARE.
23  *
24  */
25 
26 #ifndef H_LIMA_GPU
27 #define H_LIMA_GPU
28 
29 #include <stdint.h>
30 #include <assert.h>
31 
32 #include <util/u_dynarray.h>
33 
34 struct lima_gp_frame_reg {
35    uint32_t vs_cmd_start;
36    uint32_t vs_cmd_end;
37    uint32_t plbu_cmd_start;
38    uint32_t plbu_cmd_end;
39    uint32_t tile_heap_start;
40    uint32_t tile_heap_end;
41 };
42 
43 struct lima_pp_frame_reg {
44    uint32_t plbu_array_address;
45    uint32_t render_address;
46    uint32_t unused_0;
47    uint32_t flags;
48    uint32_t clear_value_depth;
49    uint32_t clear_value_stencil;
50    uint32_t clear_value_color;
51    uint32_t clear_value_color_1;
52    uint32_t clear_value_color_2;
53    uint32_t clear_value_color_3;
54    uint32_t width;
55    uint32_t height;
56    uint32_t fragment_stack_address;
57    uint32_t fragment_stack_size;
58    uint32_t unused_1;
59    uint32_t unused_2;
60    uint32_t one;
61    uint32_t supersampled_height;
62    uint32_t dubya;
63    uint32_t onscreen;
64    uint32_t blocking;
65    uint32_t scale;
66    uint32_t channel_layout;
67 };
68 
69 struct lima_pp_wb_reg {
70    uint32_t type;
71    uint32_t address;
72    uint32_t pixel_format;
73    uint32_t downsample_factor;
74    uint32_t pixel_layout;
75    uint32_t pitch;
76    uint32_t mrt_bits;
77    uint32_t mrt_pitch;
78    uint32_t zero;
79    uint32_t unused0;
80    uint32_t unused1;
81    uint32_t unused2;
82 };
83 
84 struct lima_render_state {
85    uint32_t blend_color_bg;
86    uint32_t blend_color_ra;
87    uint32_t alpha_blend;
88    uint32_t depth_test;
89    uint32_t depth_range;
90    uint32_t stencil_front;
91    uint32_t stencil_back;
92    uint32_t stencil_test;
93    uint32_t multi_sample;
94    uint32_t shader_address;
95    uint32_t varying_types;
96    uint32_t uniforms_address;
97    uint32_t textures_address;
98    uint32_t aux0;
99    uint32_t aux1;
100    uint32_t varyings_address;
101 };
102 
103 /* plbu commands */
104 #define PLBU_CMD_BEGIN(array, max) { \
105    int i = 0, max_n = max; \
106    struct util_dynarray *plbu_cmd_array = array; \
107    uint32_t *plbu_cmd = util_dynarray_ensure_cap(plbu_cmd_array, plbu_cmd_array->size + max_n * 4);
108 
109 #define PLBU_CMD_END() \
110    assert(i <= max_n); \
111    plbu_cmd_array->size += i * 4; \
112 }
113 
114 #define PLBU_CMD_CURRENT_POS() \
115    (util_dynarray_num_elements(plbu_cmd_array, uint32_t) + i)
116 
117 #define PLBU_CMD(v1, v2) \
118    do { \
119       plbu_cmd[i++] = v1; \
120       plbu_cmd[i++] = v2; \
121    } while (0)
122 
123 #define PLBU_CMD_BLOCK_STEP(shift_min, shift_h, shift_w) \
124    PLBU_CMD(((shift_min) << 28) | ((shift_h) << 16) | (shift_w), 0x1000010C)
125 #define PLBU_CMD_TILED_DIMENSIONS(tiled_w, tiled_h) \
126    PLBU_CMD((((tiled_w) - 1) << 24) | (((tiled_h) - 1) << 8), 0x10000109)
127 #define PLBU_CMD_BLOCK_STRIDE(block_w) PLBU_CMD((block_w) & 0xff, 0x30000000)
128 #define PLBU_CMD_ARRAY_ADDRESS(gp_stream, block_num) \
129    PLBU_CMD(gp_stream, 0x28000000 | ((block_num) - 1) | 1)
130 #define PLBU_CMD_VIEWPORT_LEFT(v) PLBU_CMD(v, 0x10000107)
131 #define PLBU_CMD_VIEWPORT_RIGHT(v) PLBU_CMD(v, 0x10000108)
132 #define PLBU_CMD_VIEWPORT_BOTTOM(v) PLBU_CMD(v, 0x10000105)
133 #define PLBU_CMD_VIEWPORT_TOP(v) PLBU_CMD(v, 0x10000106)
134 #define PLBU_CMD_ARRAYS_SEMAPHORE_BEGIN() PLBU_CMD(0x00010002, 0x60000000)
135 #define PLBU_CMD_ARRAYS_SEMAPHORE_END() PLBU_CMD(0x00010001, 0x60000000)
136 #define PLBU_CMD_PRIMITIVE_SETUP(force_point_size, cull, index_size) \
137    PLBU_CMD(0x2200 | ((force_point_size) ? 0x1000 : 0) | \
138             (cull) | ((index_size) << 9), 0x1000010B)
139 #define PLBU_CMD_RSW_VERTEX_ARRAY(rsw, gl_pos) \
140    PLBU_CMD(rsw, 0x80000000 | ((gl_pos) >> 4))
141 #define PLBU_CMD_SCISSORS(minx, maxx, miny, maxy) \
142    PLBU_CMD(((minx) << 30) | ((maxy) - 1) << 15 | (miny), \
143             0x70000000 | ((maxx) - 1) << 13 | ((minx) >> 2))
144 #define PLBU_CMD_UNKNOWN1() PLBU_CMD(0x00000000, 0x1000010A)
145 #define PLBU_CMD_UNKNOWN2() PLBU_CMD(0x00000200, 0x1000010B)
146 #define PLBU_CMD_LOW_PRIM_SIZE(v) PLBU_CMD(v, 0x1000010D)
147 #define PLBU_CMD_DEPTH_RANGE_NEAR(v) PLBU_CMD(v, 0x1000010E)
148 #define PLBU_CMD_DEPTH_RANGE_FAR(v) PLBU_CMD(v, 0x1000010F)
149 #define PLBU_CMD_INDEXED_DEST(gl_pos) PLBU_CMD(gl_pos, 0x10000100)
150 #define PLBU_CMD_INDEXED_PT_SIZE(pt_size) PLBU_CMD(pt_size, 0x10000102)
151 #define PLBU_CMD_INDICES(va) PLBU_CMD(va, 0x10000101)
152 #define PLBU_CMD_DRAW_ARRAYS(mode, start, count) \
153    PLBU_CMD(((count) << 24) | (start), (((mode) & 0x1F) << 16) | ((count) >> 8))
154 #define PLBU_CMD_DRAW_ELEMENTS(mode, start, count) \
155    PLBU_CMD(((count) << 24) | (start), \
156             0x00200000 | (((mode) & 0x1F) << 16) | ((count) >> 8))
157 
158 /* vs commands */
159 #define VS_CMD_BEGIN(array, max) { \
160    int i = 0, max_n = max; \
161    struct util_dynarray *vs_cmd_array = array; \
162    uint32_t *vs_cmd = util_dynarray_ensure_cap(vs_cmd_array, vs_cmd_array->size + max_n * 4);
163 
164 #define VS_CMD_END() \
165    assert(i <= max_n); \
166    vs_cmd_array->size += i * 4; \
167 }
168 
169 #define VS_CMD(v1, v2) \
170    do { \
171       vs_cmd[i++] = v1; \
172       vs_cmd[i++] = v2; \
173    } while (0)
174 
175 #define VS_CMD_ARRAYS_SEMAPHORE_BEGIN_1() VS_CMD(0x00028000, 0x50000000)
176 #define VS_CMD_ARRAYS_SEMAPHORE_BEGIN_2() VS_CMD(0x00000001, 0x50000000)
177 #define VS_CMD_ARRAYS_SEMAPHORE_END(index_draw) \
178    VS_CMD((index_draw) ? 0x00018000 : 0x00000000, 0x50000000)
179 #define VS_CMD_UNIFORMS_ADDRESS(addr, size) \
180    VS_CMD(addr, 0x30000000 | ((size) << 12))
181 #define VS_CMD_SHADER_ADDRESS(addr, size) \
182    VS_CMD(addr, 0x40000000 | ((size) << 12))
183 #define VS_CMD_SHADER_INFO(prefetch, size) \
184    VS_CMD(((prefetch) << 20) | ((((size) >> 4) - 1) << 10), 0x10000040)
185 #define VS_CMD_VARYING_ATTRIBUTE_COUNT(nv, na) \
186    VS_CMD((((nv) - 1) << 8) | (((na) - 1) << 24), 0x10000042)
187 #define VS_CMD_UNKNOWN1() VS_CMD(0x00000003, 0x10000041)
188 #define VS_CMD_UNKNOWN2() VS_CMD(0x00000000, 0x60000000)
189 #define VS_CMD_ATTRIBUTES_ADDRESS(addr, na) \
190    VS_CMD(addr, 0x20000000 | ((na) << 17))
191 #define VS_CMD_VARYINGS_ADDRESS(addr, nv) \
192    VS_CMD(addr, 0x20000008 | ((nv) << 17))
193 #define VS_CMD_DRAW(num, index_draw) \
194    VS_CMD(((num) << 24) | ((index_draw) ? 1 : 0), ((num) >> 8))
195 
196 #endif
197